WO2019105322A1 - 抢占资源进行数据传输的方法 - Google Patents

抢占资源进行数据传输的方法 Download PDF

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Publication number
WO2019105322A1
WO2019105322A1 PCT/CN2018/117422 CN2018117422W WO2019105322A1 WO 2019105322 A1 WO2019105322 A1 WO 2019105322A1 CN 2018117422 W CN2018117422 W CN 2018117422W WO 2019105322 A1 WO2019105322 A1 WO 2019105322A1
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Prior art keywords
time
data
frequency resource
control information
determining
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PCT/CN2018/117422
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English (en)
French (fr)
Inventor
杜白
张鹏
伊斯兰陶菲克尔
玛瑞夫阿民
吕永霞
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18884326.2A priority Critical patent/EP3706492A4/en
Publication of WO2019105322A1 publication Critical patent/WO2019105322A1/zh
Priority to US16/886,362 priority patent/US20200296706A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1835—Buffer management
    • H04L1/1838—Buffer management for semi-reliable protocols, e.g. for less sensitive applications such as streaming video
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1835—Buffer management
    • H04L1/1845—Combining techniques, e.g. code combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling

Definitions

  • Embodiments of the present invention relate to the field of wireless communications, and in particular, to a method and apparatus for preempting resources for data transmission.
  • the 5G mobile communication system supports an enhanced mobile broadband (eMBB) service, an ultra reliable and low latency communications (URLLC) service, and a mass machine type communications (mMTC) service.
  • eMBB services include: ultra high definition video, augmented reality (AR), virtual reality (VR), etc.
  • the main features of these services are large amount of transmitted data and high transmission rate.
  • Typical URLLC services include wireless control in industrial manufacturing or production processes, motion control for driverless cars and drones, and tactile interaction applications such as remote repair and remote surgery.
  • the main features of these services are ultra-high reliability. Low latency, low data transfer and burstiness.
  • Typical mMTC services include: smart grid distribution automation, smart city, etc. The main features are huge number of networked devices, small amount of transmitted data, and insensitive data transmission delay. These mMTC terminals need to meet low cost and very long standby. The demand for time.
  • the generation of data packets of the URLLC service is bursty and random, and may not generate data packets for a long period of time, or may generate multiple data packets in a short time.
  • the data packets of the URLLC service are in most cases small packets, such as 32 or 50 bytes.
  • the characteristics of the data packets of the URLLC service affect the way the transmission resources are allocated in the communication system.
  • Transmission resources herein include, but are not limited to, time domain symbols, frequency domain resources, time-frequency resources, codeword resources, and beam resources.
  • the allocation of transmission resources is performed by the base station, and the base station is taken as an example for description. If the base station allocates transmission resources for the URLLC service by using reserved resources, the transmission resources reserved when no URLLC service data needs to be transmitted are wasted.
  • the short delay feature of the URLLC service requires the data packet to be transmitted in a very short time, so the base station needs to reserve a sufficiently large bandwidth for the URLLC service, thereby causing a serious decrease in the utilization of the transmission
  • the base station Due to the burstiness of the data of the URLLC service, in order to improve the system resource utilization, the base station usually does not reserve resources for downlink data transmission of the URLLC service.
  • the base station cannot wait for the scheduled transmission of the eMBB service data to complete the URLLC service data, in order to meet the ultra-short delay requirement of the URLLC service.
  • the base station may allocate resources for URLLC service data in a preemption manner. As shown in FIG. 1 , the preemption herein refers to that the base station selects part or all of the time-frequency resources on the time-frequency resources that have been allocated for transmitting the eMBB service data, for transmitting the URLLC service data.
  • the transmit power of the eMBB service data is set to zero on the preempted time-frequency resource, or is not on the preempted time-frequency resource.
  • Sending eMBB service data which may also be called eMBB service data being punctured or time-frequency resources for transmitting eMBB service data, is punctured.
  • the terminal receiving the eMBB service data does not know which part of the data is affected by the preemption, the terminal may merge the URLLC service data as the eMBB service data and the hybrid automatic repeat request (HARQ).
  • HARQ hybrid automatic repeat request
  • the base station may send a preemption indication (PI) to the terminal that receives the eMBB service data, to notify the terminal which transmission resources are preempted.
  • PI preemption indication
  • the terminal clears the data received on the time-frequency resource indicated by the PI from the cache, and avoids the impact of the URLLC service data on the decoding of the eMBB service data, thereby improving the transmission performance of the eMBB service data.
  • the PI is carried in a downlink control information (DCI) and is sent to a group of terminals through a physical downlink control channel (PDCCH).
  • DCI downlink control information
  • PDCH physical downlink control channel
  • the URLLC service data sent to the terminal may preempt the transmission resource of the eMBB service data of the terminal device.
  • the terminal receives the PI, if the data received on the time-frequency resource indicated by the PI is cleared from the cache, the URLLC service data is also cleared.
  • the present application provides a method and apparatus for preempting resources for data transmission.
  • time-frequency resources for transmitting second service data are preempted for transmitting first service data
  • the terminal device receives and processes the second service data.
  • the data received on the preempted time-frequency resource may be discarded, so that the data received on the preempted time-frequency resource does not participate in the decoding and/or HARQ combining of the second service data, thereby improving the second service.
  • the transmission performance of the data when the terminal device performs the reception processing on the first service data, the first service data transmitted on the preempted time-frequency resource is not discarded due to the PI, so that the time-frequency resource is preempted.
  • the transmitted first service data can participate in the decoding normally, ensuring the normal transmission of the first service data.
  • the first aspect provides a method for preempting resources for data transmission, including: receiving first control information, where the first control information is used to indicate that the communication device receives the first data in the first time-frequency resource; and receives the second control information.
  • the second control information is used to indicate that there is no information transmission in the second time-frequency resource; determining whether there is first data on the third time-frequency resource according to the feature of the first control information or the feature of the first data, where the third time
  • the frequency resource is a time-frequency resource in which the first time-frequency resource and the second time-frequency resource overlap.
  • the execution body of the data transmission method is a communication device, and the communication device may be a terminal device or a chip or a chipset applied to the terminal device.
  • the terminal device determines whether there is first data on the third time-frequency resource according to the feature of the first control information or the feature of the first data, and implicitly determines the data on the third time-frequency resource.
  • Receiving processing saves signaling overhead and improves air interface transmission efficiency.
  • the type of the first control information when the type of the first control information is the first type, determining that there is first data on the third time-frequency resource; and/or, when the type of the first control information When it is not the first type, it is determined that there is no first data on the third time-frequency resource.
  • the transmission time interval of transmitting the first data when the transmission time interval of transmitting the first data is less than the first threshold, determining that there is first data on the third time-frequency resource; and/or, when transmitting the first data When the transmission time interval is greater than or equal to the first threshold, it is determined that there is no first data on the third time-frequency resource.
  • the transmission time interval of transmitting the first data when the transmission time interval of transmitting the first data is less than or equal to the first threshold, determining that there is first data on the third time-frequency resource; and/or, when transmitting the first When the transmission time interval of the data is greater than the first threshold, it is determined that there is no first data on the third time-frequency resource.
  • the subcarrier spacing for transmitting the first data when the subcarrier spacing for transmitting the first data is greater than the second threshold, determining that there is first data on the third time-frequency resource; and/or, when transmitting the first data When the subcarrier spacing is less than or equal to the second threshold, it is determined that there is no first data on the third time-frequency resource.
  • the subcarrier spacing of the first data when the subcarrier spacing of the first data is greater than or equal to the second threshold, determining that the first data is received on the third time-frequency resource, that is, the receiving of the first data is not performed.
  • the impact of the PI when the subcarrier spacing for transmitting the first data is less than the second threshold, it is determined that there is no data on the third time-frequency resource, that is, the reception of the first data is affected by the PI.
  • the third control information is received, where the third control information is used to indicate that the communications device receives the third data in the fourth time-frequency resource, and the third control information includes the first indication information,
  • the first indication information is used to indicate whether the communication device has the first data on the fifth time-frequency resource, where the fifth time-frequency resource is a time-frequency resource that does not overlap with the third time-frequency resource in the sixth time-frequency resource,
  • the six-time frequency resource is a time-frequency resource in which the fourth time-frequency resource and the second time-frequency resource overlap.
  • the second aspect provides a method for preempting resources for data transmission, including: receiving first control information, where the first control information is used to indicate that the communications device receives the first data in the first time-frequency resource; and receives the second control information.
  • the second control information is used to indicate that there is no information transmission in the second time-frequency resource;
  • the third control information is used to indicate that the communication device receives the third data in the fourth time-frequency resource, where the third control information includes a first indication information, where the first indication information is used to indicate whether the communication device has the first data on the fifth time-frequency resource, where the fifth time-frequency resource is the sixth time-frequency resource that does not overlap with the third time-frequency resource.
  • the time-frequency resource, the sixth time-frequency resource is a time-frequency resource in which the fourth time-frequency resource and the second time-frequency resource overlap
  • the third time-frequency resource is a time-frequency resource in which the first time-frequency resource and the second time-frequency resource overlap.
  • the execution body of the data transmission method is a communication device, and the communication device may be a terminal device or a chip or a chipset applied to the terminal device. Taking the terminal as the execution subject as an example, the terminal device determines, according to the first indication information, whether the terminal device has the first data on the fifth time-frequency resource, and displays that the data on the fifth time-frequency resource is received and processed, so as to avoid participation. The decoded data is discarded, which improves the efficiency of air interface transmission.
  • a third aspect provides a method for preempting resources for data transmission, including: receiving first control information, where the first control information is used to indicate that the communication device receives the first data in the first time-frequency resource; and receives the third control information.
  • the third control information is used to indicate that the communication device receives the third data in the fourth time-frequency resource.
  • the third control information further includes first indication information, where the first indication information is used to indicate whether the communication device is on the fifth time-frequency resource.
  • the first data wherein the time domain of the fifth time-frequency resource corresponds to a time domain in which the first time-frequency resource overlaps with the fourth time-frequency resource, and the frequency domain of the fifth time-frequency resource corresponds to the first time-frequency resource and the first Four-frequency resources have no overlapping frequency domain.
  • the execution body of the data transmission method is a communication device, and the communication device may be a terminal device or a chip or a chipset applied to the terminal device.
  • the terminal device determines, according to the first indication information, whether the terminal device has the first data on the fifth time-frequency resource, and displays that the data on the fifth time-frequency resource is received and processed, so as to avoid participation.
  • the decoded data is discarded, which improves the efficiency of air interface transmission.
  • a fourth aspect provides a method for preempting resources for data transmission, including: receiving fourth control information, where the fourth control information is used to instruct the communication device to receive the first data on the first bandwidth portion BWP; and receive the first control information.
  • the first control information is used to indicate that the communication device receives the first data in the first time-frequency resource, and receives the second control information, where the second control information is used to indicate that no information is transmitted in the second time-frequency resource;
  • the relationship with the first BWP determines whether there is first data on the third time-frequency resource, where the third time-frequency resource is a time-frequency resource in which the first time-frequency resource and the second time-frequency resource overlap.
  • the execution body of the data transmission method is a communication device, and the communication device may be a terminal device or a chip or a chipset applied to the terminal device.
  • the terminal device determines whether there is first data on the third time-frequency resource according to the relationship between the second control information and the first BWP, and implicitly determines the receiving process of the data on the third time-frequency resource.
  • the signaling overhead is saved and the air interface transmission efficiency is improved.
  • the second control information belongs to the first BWP, determining that there is no first data on the third time-frequency resource; and/or, when the second control information does not belong to the first In the case of BWP, it is determined that there is first data on the third time-frequency resource.
  • a communication device including a processing unit and a transceiver unit, wherein the processing unit is configured to perform the data processing function in the foregoing first aspect or any possible implementation manner of the first aspect, where the transceiver unit is configured to perform The data transceiving function in the foregoing first aspect or any possible implementation manner of the first aspect; or the processing unit is configured to perform the data processing function in the second aspect or any possible implementation manner of the second aspect, The data transceiving function in the second aspect or any possible implementation of the second aspect is performed; or the processing unit is configured to perform the data processing function in the third aspect or any possible implementation manner of the third aspect, the transceiver unit
  • the data transceiving function is used to perform the data transceiving function in any possible implementation manner of the third aspect or the third aspect; or the processing unit is configured to perform the data processing function in the fourth aspect or any possible implementation manner of the fourth aspect,
  • the unit is configured to perform data collection in any of the possible implementations of the fourth aspect or the fourth aspect Features
  • a communication apparatus comprising a processor and a memory, wherein the memory is for storing a computer program or instructions, the computer program or instructions for executing the memory storage, the computer program for executing the memory storage when the processor or
  • the communication device is operative to perform the method of the first aspect or any of the possible implementations of the first aspect; or the communication device is operative to perform the method of any of the second aspect or the second aspect of the second aspect Or a communication device for performing the method of any of the above-mentioned third or third aspects of the possible implementation; or the communication device for performing the method of any of the above-mentioned fourth or fourth possible implementations .
  • the various components in the communication device communicate with one another via internal connection paths, such as control and/or data signals via the bus.
  • a communication device including a processing circuit and a transceiver circuit, wherein the processing circuit is configured to perform the function of the processing unit in the fifth aspect, and the transceiver circuit is configured to perform the function of the transceiver unit in the fifth aspect.
  • the respective circuits in the communication device communicate with each other through internal circuits.
  • a computer readable storage medium for storing a computer program or instructions that, when executed on a computer, cause the computer to perform the first aspect or any of the possible implementations of the first aspect Or a method of causing a computer to perform the method in any of the possible implementations of the second aspect or the second aspect described above; or to cause the computer to perform the method of any of the above-described third or third aspect; or The computer is caused to perform the method of any of the above-described fourth aspect or any of the possible implementations of the fourth aspect.
  • a ninth aspect a computer program product, when run on a computer, causes the computer to perform the method of any of the first aspect or the first aspect of the first aspect; or to cause the computer to perform the second aspect Or the method of any of the possible implementations of the second aspect; or, causing the computer to perform the method of any of the above-described third or third aspects, or to cause the computer to perform the fourth or fourth aspect described above The method in any possible implementation.
  • FIG. 1 is a schematic diagram of a time-frequency resource for preempting a service for transmitting eMBB service data by using URLLC service data;
  • FIG. 2 is a schematic structural diagram of a mobile communication system to which an embodiment of the present application is applied;
  • FIG. 3 is a schematic diagram of a relationship between time-frequency resource A, time-frequency resource B, and time-frequency resource C according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of another time-frequency resource for preserving eMBB service data by using URLLC service data preemption according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of a method for preempting resources for data transmission according to an embodiment of the present application
  • FIG. 6 is a schematic flowchart of another method for preempting resources for data transmission according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of still another method for preempting resources for data transmission according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another time-frequency resource for preserving eMBB service data by using URLLC service data provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of still another method for preempting resources for data transmission according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of still another communication apparatus according to an embodiment of the present application.
  • the mobile communication system includes a core network device 210, a radio access network device 220, and at least one terminal device (such as the terminal device 230 and the terminal device 240 in FIG. 2).
  • the terminal device is connected to the radio access network device by means of a wireless connection, and the radio access network device is connected to the core network device by wireless or wired.
  • the core network device and the wireless access network device may be independent physical devices, or may integrate the functions of the core network device with the logical functions of the wireless access network device on the same physical device, or may be a physical device.
  • the functions of some core network devices and the functions of some wireless access network devices are integrated.
  • the terminal device can be fixed or mobile.
  • FIG. 2 is only a schematic diagram.
  • the communication system may further include other network devices, such as a wireless relay device and a wireless backhaul device, which are not shown in FIG. 2.
  • the embodiment of the present application does not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.
  • the radio access network device is an access device that the terminal device accesses to the mobile communication system by using a wireless device, and may be a base station NodeB, an evolved base station eNodeB, a 5G mobile communication system, or a new radio (NR) communication system.
  • a radio access network device is referred to as a network device.
  • a network device refers to a radio access network device.
  • 5G and NR may be equivalent.
  • the terminal device may also be referred to as a terminal terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like.
  • the terminal device can be a mobile phone, a tablet (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, industrial control (industrial control) Wireless terminal, wireless terminal in self driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless in transport safety A terminal, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • Radio access network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or on-board; they can also be deployed on the water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the application scenarios of the radio access network device and the terminal device are not limited.
  • the radio access network device and the terminal device can communicate through a licensed spectrum, or through an unlicensed spectrum, or simultaneously through an authorized spectrum and an unlicensed spectrum.
  • the radio access network device and the terminal device can communicate through a spectrum of 6 gigahertz (GHz) or less, or communicate with a spectrum of 6 GHz or higher, and can simultaneously use a spectrum below 6 GHz and a spectrum of 6 GHz or higher. Communication.
  • GHz gigahertz
  • the embodiment of the present application does not limit the spectrum resources used between the radio access network device and the terminal device.
  • the following describes the downlink data transmission in which the sending device is a network device and the receiving device is a terminal device.
  • the network device may send the indication information of the auxiliary reception to the terminal device, where the indication information of the auxiliary reception is used to notify the terminal device of the affected time-frequency region.
  • the terminal device may discard the eMBB service data corresponding to the received time-frequency region, and the eMBB service data of the area does not participate in decoding and HARQ combining, thereby improving decoding success. Rate, improve data transfer performance.
  • the time-frequency resources used to transmit eMBB service data are affected:
  • Time-frequency resources for transmitting eMBB service data are preempted for transmitting other service data or other signals, or are set as reserved resources. For example, it is used to transmit URLLC service data; or to transmit interference management related signals; or to reserve for use by other systems.
  • the interference management related signals herein may include a reference signal or a zero power reference signal.
  • the reserved resources herein may be reserved for use in a long term evolution (LTE) system and applied to NR and LTE coexistence scenarios. For example, the first three time domain symbols of one subframe may be reserved for PDCCH of LTE. .
  • the reserved resources can also be used for the measurement of the reference signal of the NR.
  • the bandwidth parts (BWPs) of the two UEs may interfere with each other, and the reservation may be reserved.
  • the resource mode reserves a part of the time-frequency resources of the two UEs overlapping to avoid interference.
  • the reserved resource can be used by another channel.
  • the symbols and the time domain symbols may be equivalent unless otherwise specified.
  • Time-frequency resources for transmitting eMBB service data are interfered by other signals, such as signals interfered by neighboring cells.
  • the network device When the time-frequency resources used to transmit the eMBB service data are affected, the network device has two different types of processing methods for the eMBB service data: one type is puncturing, and the service data of the eMBB on the affected time-frequency resources at this time. Is punctured, that is, the eMBB service data is not sent on the affected time-frequency resources, or the transmission power of the eMBB service data on the affected time-frequency resources is set to zero; The class is a rate matching mode. In this case, the eMBB service data is not carried on the affected time-frequency resources. The network device does not use the affected time-frequency resources as the time-frequency of the eMBB service data when performing data mapping on the eMBB service data. Resources.
  • the terminal device may discard the data transmitted on the affected time-frequency resource when receiving the processing of the eMBB service data.
  • the data transmitted on the affected time-frequency resources is not involved in the decoding of the eMBB service data.
  • the terminal device does not extract data from the affected time-frequency resource when performing demodulation processing on the eMBB service data.
  • the network device and the terminal device are generally processed in a rate matching manner. Therefore, the reserved resource may also be referred to as a rate matching resource (RMR).
  • RRR rate matching resource
  • the indication information of the auxiliary reception may also be referred to as a preemption indication (PI), and the specific name of the indication information for assisting reception of the present application. Not limited.
  • the embodiment of the present application can also be applied to other application scenarios, for example, the first information preempts the time-frequency resource used for transmitting the second information, or the transmission of the first information interferes with the transmission of the second information.
  • the transmission priority of the first information is higher than the second information, and the transmission resource of the second information is allowed to be preempted.
  • This application does not limit the application scenario.
  • the business data affected here may be uMTC services or other services in addition to eMBB services.
  • the following provides an embodiment of the present application by taking the URLLC service data preemption for the time-frequency resource for transmitting the eMBB service data.
  • the embodiment of the present application does not limit the specific type of service data.
  • Scenario 1 The UE1 supports the data transmission of the URLLC service and the eMBB service, and the URLLC service data of the UE1 preempts the transmission resource for transmitting the eMBB service data of the UE2.
  • UE1 may be terminal device 230 in FIG. 2, and UE2 may be terminal device 240 in FIG. Since UE1 supports data transmission of both URLLC service and eMBB service, UE1 can receive PI from the network device.
  • Scenario 2 The UE1 supports the data transmission of the URLLC service and the eMBB service, and the URLLC service data of the UE1 preempts the transmission resource for transmitting the eMBB service data of the UE1.
  • the UE may receive the PI from the network device, and the PI indicates the preempted resource. After receiving the PI, the UE determines whether to discard the data transmitted by the time-frequency resource that overlaps with the time-frequency resource indicated by the PI according to the PI, which is a technical problem to be solved by the present application.
  • the time-frequency resource allocated by the network device to the URLLC service data by the DCI_A is the time-frequency resource A, and the URLLC service data is referred to as the data A;
  • the time-frequency resource allocated by the network device to the eMBB service data through the DCI_B is Time-frequency resource B, eMBB service data is called data B;
  • PI indicates that the time-frequency resource that is preempted is time-frequency resource C; time-frequency resource where time-frequency resource A and time-frequency resource C overlap is time-frequency resource D; time-frequency resource The time-frequency resource in which B and time-frequency resource C overlap is time-frequency resource E.
  • the time-frequency resource B here may be either a scenario assigned to the UE2 or a scenario 2 assigned to the UE1.
  • DCI_A is the DCI of the network device scheduling URLLC service data
  • DCI_B is the DCI of the network device scheduling eMBB service data.
  • FIG. 3 is a schematic diagram showing the relationship between time-frequency resource A, time-frequency resource B, and time-frequency resource C.
  • UE1 may determine whether there is data indicated by DCI_A on time-frequency resource D according to the characteristics of DCI_A or the characteristics of data A. After UE2 receives the PI, UE2 may determine whether there is data indicated by DCI_B on time-frequency resource E according to the characteristics of DCI_B or the characteristics of data B. For scenario 2, after the UE1 receives the PI, the UE1 may further determine whether there is data indicated by the DCI_B on the time-frequency resource E according to the feature of the DCI_B or the characteristics of the data B.
  • the features of DCI_A and DCI_B herein include the type of DCI or the initial transmission location of the DCI; the characteristics of data A and data B include the transmission time interval of the transmission data or the subcarrier spacing of the transmission data.
  • the features of DCI_A and DCI_B further include the relative position of the transmission DCI, and UE1 can determine whether the data A scheduled by DCI_A or the data B scheduled by DCI_B is transmitted on the time-frequency resource E according to the relative position of the transmission DCI.
  • the characteristics of the data A and the data B further include the relative position of the data start transmission, and the UE1 may determine whether the data of the DCI_A scheduled data or the DCI_B is transmitted on the time-frequency resource E according to the relative position of the data start transmission.
  • the DCI scheduled data may be identical to the data indicated by the DCI.
  • the time-frequency resource A scheduled by DCI_A and the time-frequency resource B scheduled by DCI_B overlap.
  • the UE1 judges that the data A transmitted on the time-frequency resource A scheduled by the DCI_A is not affected by the PI. Because the data A scheduled by the DCI_A preempts some or all of the time-frequency resources in the time-frequency resource B for transmitting the data B scheduled by the DCI_B. Since the transmission delay requirement of data A is very small, data transmission cannot be performed after the data B transmission is completed, and at this time, the network device has no free resources available or insufficient free resources are available, so the network device allocates data A through DCI_A.
  • the time-frequency resource A wherein the time-frequency resource A and the time-frequency resource B of the transmission data B partially or completely overlap.
  • the UE may determine whether the reception of the corresponding data is affected by the PI by determining the sequence of the received DCI.
  • the time-frequency resources used by the received DCI scheduled data transmission are preempted by the received DCI. That is to say, the reception of the data scheduled by the DCI received later is not affected by the PI, and the data scheduled by the DCI received first is affected by the PI.
  • the receiving of data of a DCI scheduled by the PI means that after the UE receives the PI, the data transmitted on the affected time-frequency resource does not participate in the decoding of the data scheduled by the UE for the DCI.
  • the following two implementations (1) In the affected data transmission, the data transmitted on the affected time-frequency resources still participates in the decoding of the data scheduled by the UE for the DCI, but the data transmitted on the affected time-frequency resources will be from the The HARQ buffer corresponding to the data scheduled by the DCI is flushed and no longer participates in subsequent HARQ merging.
  • the UE In the affected data transmission, the UE decodes all the data scheduled by the DCI before receiving the PI; after receiving the PI, the UE transmits the data transmitted on the affected time-frequency resource. After the exclusion, repeat the decoding again.
  • the UE does not decode the data scheduled by the DCI before receiving the PI. After receiving the PI, the UE excludes the data transmitted on the affected time-frequency resource. Then decode it.
  • the affected time-frequency resource herein refers to a time-frequency resource in which the preempted time-frequency resource indicated by the PI and the time-frequency resource scheduled by the DCI overlap with each other. The receiving of data of a certain DCI is not affected by the PI.
  • the PI does not affect the decoding of the data scheduled by the DCI.
  • the UE processes the decoding of the data scheduled by the DCI and does not receive the data.
  • the processing on the PI is the same, and the data transmitted on the affected time-frequency resource participates in the decoding of the data scheduled by the UE for the DCI.
  • the data transmitted on the affected time-frequency resource may be discarded or excluded.
  • the first method is to discard only the data transmitted on the affected time-frequency resource; For the sake of simplification, the data of the entire code block (CB) can be discarded.
  • the implementation can be further simplified, and the data of the entire coded block group (CB group, CBG) is discarded.
  • the affected CB or CBG here means that some of the time-frequency resources for transmitting the CB or CBG are affected time-frequency resources.
  • the first processing method described above may also be referred to as flushing physical data
  • the second and third processing methods may also be referred to as flushing logical data.
  • the present application provides a schematic flowchart of a method for preempting resources for data transmission.
  • the terminal device receives the first control information from the network device, where the first control information is used to instruct the terminal device to receive the first data in the first time-frequency resource.
  • the first control information may be DCI_A or DCI_B
  • the first time-frequency resource may be time-frequency resource A or time-frequency resource B
  • the first data may be data A or data B.
  • the first data may be data of one or more transport blocks (TBs) of the URLLC service data, or may be data of one or more TBs in the eMBB service data.
  • TBs transport blocks
  • the terminal device receives the second control information, where the second control information is used to indicate that no information is transmitted in the second time-frequency resource. There is no information transmission corresponding to the preemption situation.
  • the time-frequency resource of another service 1 is preempted by another service 2
  • the data of the service 1 is not transmitted, but the data of the service 2 is transmitted. Therefore, for Service 1, there is no information transmission.
  • the second control information may be PI
  • the second time-frequency resource may be time-frequency resource C.
  • the information transmission in the second time-frequency resource is that the time-frequency resource C is preempted, the data B transmitted in the time-frequency resource E is punctured, and the data B is not transmitted on the corresponding time-frequency resource E, or the time-frequency resource E is not transmitted.
  • the power of the data B transmitted on is set to zero.
  • the terminal device determines whether there is first data on the third time-frequency resource according to the feature of the first control information or the feature of the first data, or the terminal device determines, according to the feature of the first control information or the feature of the first data. Whether the reception of a data is affected by the second control information, wherein the third time-frequency resource is a time-frequency resource in which the first time-frequency resource and the second time-frequency resource overlap.
  • the terminal device determines that there is first data on the third time-frequency resource
  • the data transmitted on the third time-frequency resource participates in decoding the first data by the terminal device
  • the terminal device determines the third time-frequency resource
  • the data transmitted on the third time-frequency resource does not participate in decoding the first data by the terminal device.
  • the third time-frequency resource herein may be time-frequency resource D or time-frequency resource E.
  • the feature of the first control information includes a type of the first control information or a start transmission location of the first control information.
  • the terminal device determines that there is first data on the third time-frequency resource, that is, the receiving of the first data is not affected by the PI; when the first control information is When the type is not the first type, the terminal device determines that there is no first data on the third time-frequency resource, that is, the reception of the first data is affected by the PI.
  • the DCI commonly used is compact DCI. Therefore, the first type herein may be a compact DCI.
  • the first type may also have other specific type names. The specific name of the first type is not limited in this application.
  • the time-frequency resources scheduled by the first type of DCI are not allowed to be preempted.
  • the reception of data scheduled by the first type of DCI is not affected by the PI.
  • the specific value of the first type may be predefined by the protocol, or may be notified to the terminal device by signaling after the network device determines.
  • whether the type of the first control information is the first type may be determined according to at least one of the following manners:
  • a radio network temporary identifier (RNTI) that scrambles the first control information is an RNTI of the first type of control information.
  • the payload size of the first control information is equal to the payload size of the first type of control information.
  • the first field in the first control information indicates the first type of control information, for example, the name of the first field is Identifier for DCI formats.
  • the error probability of the first control information reaches the requirement of the error probability of the first type of control information, where the error probability may be a false alarm probability or a false alarm probability, or may be a false alarm probability and a false alarm probability. combination.
  • the error probability may be determined by a verification method. For example, the length of the cyclic redundancy code (CRC) sequence may be determined. When the length of the CRC sequence is longer than a certain threshold, it is considered to be the first A type of control information; or it may be judged by the step of verifying that when the first control information needs to adopt a two-step or two-step verification mode, the first control information is considered to be the first type of control information.
  • CRC cyclic redundancy code
  • the encoding mode of the first control information is a specific encoding mode, determining that the first control information is the first type of control information.
  • the coding manner of the first control information may be any one of a low-density parity check (LDPC) or a polar code.
  • the terminal device determines that the first data is received on the third time-frequency resource, that is, the reception of the first data is not affected by the PI. .
  • the initial transmission position of the DCI that schedules the URLLC service data is not at the start position of the time slot, for example, in a time slot.
  • the fourth time domain symbol is not at the start position of the time slot, for example, in a time slot.
  • the characteristics of the first data include a transmission time interval in which the first data is transmitted or a subcarrier spacing (SCS) in which the first data is transmitted.
  • SCS subcarrier spacing
  • the terminal device determines that there is first data on the third time-frequency resource, that is, the reception of the first data is not affected by the PI;
  • the terminal device determines that there is no first data in the third time-frequency resource, that is, the reception of the first data is affected by the PI.
  • the terminal device determines that there is first data on the third time-frequency resource, that is, the reception of the first data is not affected by the PI;
  • the terminal device determines that there is no first data on the third time-frequency resource, that is, the reception of the first data is affected by the PI.
  • the first threshold may be in the form of a symbol, and the value of the first threshold may be the same in different SCS scenarios; the first threshold may also be in units of time, and the values of the first threshold in different SCS scenarios may be set to different values.
  • the first threshold may be predefined by the system, or may be notified to the terminal device by signaling after being determined by the network device.
  • the signaling may be radio resource control (RRC) signaling, physical layer signaling, or medium access control signaling.
  • RRC radio resource control
  • the signaling may be sent to a specific terminal device; or may be group signaling, that is, sent to a group of terminal devices; or may be broadcast signaling, that is, sent to all terminal devices in the cell.
  • the terminal device determines that there is first data on the third time-frequency resource, that is, the receiving of the first data is not affected by the PI;
  • the terminal device determines that there is no data on the third time-frequency resource, that is, the reception of the first data is affected by the PI.
  • the terminal device determines that the first data is received on the third time-frequency resource, that is, the receiving of the first data is not affected by the PI;
  • the terminal device determines that there is no data on the third time-frequency resource, that is, the reception of the first data is affected by the PI.
  • the first threshold may be predefined by the system, or may be determined by the network device, and then notified to the terminal device by signaling.
  • the terminal device determines whether there is first data on the third time-frequency resource according to the feature of the first control information or the feature of the first data, and implicitly determines the receiving process of the data on the third time-frequency resource.
  • the signaling overhead is saved and the air interface transmission efficiency is improved.
  • the URLLC service data of the UE1 preempts the transmission resource for transmitting the eMBB service data of the UE1.
  • the indication granularity of the preempted time-frequency resource C indicated by the PI is relatively coarse. For example, the time-frequency resource with the bandwidth of the bandwidth part (BWP) in the frequency domain is preempted. Or, indicating that the time-frequency resources in the time domain are granular in size, and the frequency domain is half-size in the BWP, the time-frequency resources are preempted.
  • BWP bandwidth part
  • time-frequency resource C includes all time-frequency resources for transmitting the eMBB service data of the UE1 in the fourth, fifth, and sixth symbols, but actually the URLLC of the UE1.
  • the service data uses only some of the time-frequency resources in the time-frequency resource C.
  • Some of the time-frequency resources used for transmitting the eMBB service data of the UE1 in the fourth, fifth, and sixth symbols are not preempted, such as the time-frequency resource F in FIG.
  • the UE1 can only perform the data discarding operation according to the time-frequency resource C, so that the data on the time-frequency resource F is the eMBB service data, but is discarded by the UE1 due to the influence of the PI, resulting in the data of the UE1. Transmission performance is degraded.
  • UE1 can obtain specific locations of time-frequency resource A, time-frequency resource B, and time-frequency resource C, so that it can be determined whether time-frequency resource F exists.
  • the UE1 cannot determine whether the URLLC service data of other terminal devices preempts some or all of the time-frequency resources in the time-frequency resource F, and therefore cannot determine whether the data transmitted on the time-frequency resource F can be reserved.
  • the network device knows whether the URLLC service data of the other terminal device preempts some or all of the time-frequency resources in the time-frequency resource F, and the network device can use the information of whether the time-frequency resource F is preempted by other terminal devices by scheduling the URLLC service data.
  • the DCI notifies UE1 in real time. Thereby, the UE1 can determine whether to discard the data of the eMBB on the time-frequency resource F.
  • the present application provides a schematic flowchart of a method for preempting resources for data transmission.
  • the terminal device receives the first control information from the network device, where the first control information is used to instruct the terminal device to receive the first data in the first time-frequency resource.
  • the first control information may be DCI_B
  • the first time-frequency resource may be time-frequency resource B
  • the first data may be data B.
  • the first data may be data of one or more TBs in the eMBB service data.
  • S620 The terminal device receives the second control information, where the second control information is used to indicate that no information is transmitted in the second time-frequency resource.
  • the second control information may be PI
  • the second time-frequency resource may be time-frequency resource C.
  • the information transmission in the second time-frequency resource is that the time-frequency resource C is preempted, the data B transmitted in the time-frequency resource E is punctured, and the data B is not transmitted on the corresponding time-frequency resource E, or the time-frequency resource E is not transmitted.
  • the power of the data B transmitted on is set to zero.
  • the terminal device receives the third control information, where the third control information is used to indicate that the terminal device receives the third data in the fourth time-frequency resource;
  • the third control information includes the first indication information, where the first indication information is used to indicate the terminal device Whether there is first data on the fifth time-frequency resource, or is used to indicate whether the reception of the first data is affected by the second control information, where the fifth time-frequency resource is the sixth time-frequency resource and the third time-frequency resource
  • the time-frequency resource with no overlapping resources, the sixth time-frequency resource is a time-frequency resource in which the fourth time-frequency resource and the second time-frequency resource overlap, and the third time-frequency resource is the first time-frequency resource and the second time-frequency resource overlap. Time-frequency resources.
  • the data transmitted on the fifth time-frequency resource participates in decoding the first data by the terminal device; when the first indication information indicates the fifth When there is no first data on the time-frequency resource, the data transmitted on the fifth time-frequency resource does not participate in decoding the first data by the terminal device.
  • the reception of data is affected by PI.
  • the third control information here is DCI_A
  • the fourth time-frequency resource is time-frequency resource A
  • the third data is data A.
  • the third data is data of one or more transport blocks (TBs) of the URLLC service data.
  • the fifth time-frequency resource corresponds to the time-frequency resource F in FIG.
  • the first indication information may be one bit, and is used to indicate whether there is first data on the fifth time-frequency resource. For example, when the value of the first indication information is 1, it indicates that the first data is to be received on the fifth time-frequency resource, that is, the reception of the first data is not affected by the second control information; when the first indication information is 0, , indicating that there is no first data on the fifth time-frequency resource, that is, the reception of the first data is affected by the second control information. Alternatively, when the value of the first indication information is 0, it indicates that there is first data on the fifth time-frequency resource; when the value of the first indication information is 1, it indicates that there is no first data on the fifth time-frequency resource.
  • the terminal device receives the first control information from the network device, where the first control information is used to instruct the terminal device to receive the first data in the first time-frequency resource.
  • the first control information DCI_B, the first time-frequency resource may be the time-frequency resource B, and the first data may be the data B.
  • the first data may be data of one or more TBs in the eMBB service data.
  • the terminal device receives the third control information, where the third control information is used to indicate that the terminal device receives the third data in the fourth time-frequency resource, where the third control information further includes the first indication information, where the first indication information is used to indicate the terminal. Whether the device has the first data on the fifth time-frequency resource, where the time domain of the fifth time-frequency resource corresponds to the time domain in which the first time-frequency resource overlaps with the fourth time-frequency resource, and the frequency-domain corresponding to the fifth time-frequency resource The frequency domain in which the first time-frequency resource and the fourth time-frequency resource have no overlap.
  • the data transmitted on the fifth time-frequency resource participates in decoding the first data by the terminal device; when the first indication information indicates the fifth When there is no first data on the time-frequency resource, the data transmitted on the fifth time-frequency resource does not participate in decoding the first data by the terminal device.
  • the third control information here is DCI_A
  • the fourth time-frequency resource is time-frequency resource A
  • the third data is data A.
  • the third data is data of one or more transport blocks (TBs) of the URLLC service data.
  • the fifth time-frequency resource corresponds to the time-frequency resource F in FIG.
  • the first indication information may be one bit, and is used to indicate whether there is first data on the fifth time-frequency resource. For example, when the value of the first indication information is 1, it indicates that the first data is to be used on the fifth time-frequency resource, that is, the data on the fifth time-frequency resource is not discarded; when the first indication information is 0, it indicates that There is no first data on the fifth time-frequency resource, that is, the data on the fifth time-frequency resource is discarded. Alternatively, when the value of the first indication information is 0, it indicates that there is first data on the fifth time-frequency resource; when the value of the first indication information is 1, it indicates that there is no first data on the fifth time-frequency resource.
  • the terminal device determines, according to the first indication information, whether the terminal device has the first data on the fifth time-frequency resource, and the display indicates that the data on the fifth time-frequency resource is received. Processing, avoiding discarding data that can participate in decoding, and improving air interface transmission efficiency.
  • UE1 receives URLLC service data through time-frequency resource A and receives eMBB service data through time-frequency resource B.
  • the network device configures two BWPs for UE1, BWP1 for URLLC services, and BWP2 for eMBB services.
  • a part of the time-frequency resource A overlaps with the time-frequency resource B, that is, the URLLC service data part preempts the time-frequency resource B. Since the time-frequency resources used to transmit eMBB service data in BWP2 are preempted, the network device sends a PI corresponding to BWP2, or sends a PI in BWP2.
  • the UE1 determines that the time-frequency resource used for transmitting the eMBB service data is preempted according to the PI, but the UE1 does not determine, according to the PI in the BWP2, the data used for transmitting the URLLC service data.
  • Time-frequency resources are preempted because the URLLC service belongs to BWP1 and does not belong to BWP2. Therefore, UE1 cannot determine that the time-frequency resources of the transmission service data in BWP1 are preempted according to the PI in BWP2. If the network device does not configure the PI-related resource or initiates the PI mechanism in the BWP1, the UE may consider that the time-frequency resource of the service data belonging to the BWP1 is not preempted.
  • the configuration BWP may be in the DCI of the scheduling data, adding an indication field to indicate an indication of the BWP to which the currently scheduled data belongs, or adding an indication field indicating the indication of the BWP to which the next scheduled data belongs, n Is a positive integer.
  • the present application provides a schematic flowchart of a method for preempting resources for data transmission.
  • the terminal device receives fourth control information from the network device, where the fourth control information is used to instruct the terminal device to receive the first data on the first BWP.
  • the network device allocates data transmission of the URLLC service on the BWP1 to the UE1, and/or performs data transmission of the eMBB service on the BWP2.
  • the fourth control information may be carried by RRC signaling or physical layer signaling.
  • the terminal device receives the first control information from the network device, where the first control information is used to instruct the terminal device to receive the first data in the first time-frequency resource.
  • the first control information may be DCI_A or DCI_B
  • the first time-frequency resource may be time-frequency resource A or time-frequency resource B
  • the first data may be data A or data B.
  • the first data may be data of one or more transport blocks (TBs) of the URLLC service data, or may be data of one or more TBs in the eMBB service data.
  • TBs transport blocks
  • S930 The terminal device receives the second control information, where the second control information is used to indicate that no information is transmitted in the second time-frequency resource.
  • the second control information may be PI
  • the second time-frequency resource may be time-frequency resource C.
  • the information transmission in the second time-frequency resource is that the time-frequency resource C is preempted, the data B transmitted in the time-frequency resource E is punctured, and the data B is not transmitted on the corresponding time-frequency resource E, or the time-frequency resource E is not transmitted.
  • the power of the data B transmitted on is set to zero.
  • the terminal device determines whether there is first data on the third time-frequency resource according to the relationship between the second control information and the first BWP, or the terminal device determines, according to the relationship between the second control information and the first BWP, the receiving of the first data. Whether it is affected by the second control information, where the third time-frequency resource is a time-frequency resource in which the first time-frequency resource and the second time-frequency resource overlap.
  • the terminal device determines that there is first data on the third time-frequency resource
  • the data transmitted on the third time-frequency resource participates in decoding the first data by the terminal device
  • the terminal device determines the third time-frequency resource
  • the data transmitted on the third time-frequency resource does not participate in decoding the first data by the terminal device.
  • the third time-frequency resource here may be time-frequency resource D or time-frequency resource E, and the second data is transmitted on data A or time-frequency resource E transmitted on time-frequency resource D.
  • Data B is transmitted from time-frequency resource D or time-frequency resource E transmitted on time-frequency resource D.
  • the terminal device determines that there is no first data on the third time-frequency resource; and when the second control information is first When the BWP does not correspond, or when the second control information does not belong to the first BWP, the terminal device determines that there is first data on the third time-frequency resource.
  • the application scenario of the foregoing Embodiment 3 is not limited to the scenario 1 or the scenario 2, and may be other application scenarios.
  • a more general description is that the reception of DCI-scheduled data is not affected by PIs belonging to different BWPs. For example, the data scheduled by DCI1 belongs to BWP1, then if a PI does not belong to BWP1, the data scheduled by DCI1 is not affected by this PI.
  • the data transmission method provided by the embodiment of the present application is introduced from the perspective of the terminal device.
  • the terminal device includes corresponding hardware structures and/or software modules for performing the respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and method steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • FIG. 10, FIG. 11 and FIG. 12 are schematic diagrams showing the structure of three possible communication devices according to an embodiment of the present application.
  • the communication device implements the functions of the terminal device in the foregoing method embodiment, and thus the beneficial effects of the foregoing method embodiments can also be achieved.
  • the communication device may be the terminal device 230 or the terminal device 240 as shown in FIG. 2, or may be a chip applied to the terminal device.
  • the communication device 1000 includes a transceiving unit 1010 and a processing unit 1020.
  • the following device embodiment corresponding to the first embodiment of the method can be obtained.
  • the transceiver unit 1010 is configured to receive first control information, where the first control information is used to instruct the transceiver unit 1010 to receive the first data in the first time-frequency resource.
  • the transceiver unit 1010 is further configured to receive second control information, where the second control information is used to indicate that no information is transmitted in the second time-frequency resource.
  • the processing unit 1020 is configured to determine whether there is first data on the third time-frequency resource according to the feature of the first control information or the feature of the first data, where the third time-frequency resource is the first time-frequency resource and the second time-frequency resource Time-frequency resources with overlapping resources.
  • the transceiver unit 1010 is further configured to receive third control information, where the third control information is used to instruct the transceiver unit 1010 to receive the third data in the fourth time-frequency resource; the third control information includes first indication information, where the first indication information is used. Instructing the communication device to have the first data on the fifth time-frequency resource, where the fifth time-frequency resource is a time-frequency resource that does not overlap with the third time-frequency resource in the sixth time-frequency resource, and the sixth time-frequency resource A time-frequency resource that overlaps the fourth time-frequency resource and the second time-frequency resource.
  • the following device embodiment corresponding to the third embodiment of the method can be obtained.
  • the transceiver unit 1010 is configured to receive fourth control information, where the fourth control information is used to instruct the transceiver unit 1010 to receive the first data on the first bandwidth portion BWP;
  • the transceiver unit 1010 is further configured to receive first control information, where the first control information is used to instruct the transceiver unit 1010 to receive the first data in the first time-frequency resource;
  • the transceiver unit 1010 is further configured to receive second control information, where the second control information is used to indicate that no information is transmitted in the second time-frequency resource;
  • the processing unit 1020 is configured to determine, according to the relationship between the second control information and the first BWP, whether the first data is available on the third time-frequency resource, where the third time-frequency resource is the first time-frequency resource and the second time-frequency resource. Time-frequency resources with overlapping resources.
  • transceiver unit 1010 and processing unit 1020 can be directly obtained by referring to the above method embodiment, which is not described herein.
  • the communication device 1100 includes a processor 1110 for storing computer programs or instructions, a processor 1110 for executing a computer program or instructions for memory storage, and a processor 1110 for executing the memory 1120.
  • the communication device 1100 is configured to perform the method as described in the method embodiments.
  • the various components in the communication device 1100 communicate with one another via internal connection paths, such as control and/or data signals via a bus.
  • the number of the processor 1110 and the memory 1120 included in the communication device 1100 is not limited in the embodiment of the present application.
  • the communication device 1200 includes a processing circuit 1210 for performing the functions of the processing unit 1010 described above, and a transceiver circuit 1220 for performing the functions of the transceiver unit 1020 described above.
  • the respective circuits in the communication device 1200 communicate with each other through internal circuits.
  • the terminal device chip When the communication device is a chip of a terminal device, the terminal device chip implements the function of the terminal device in the foregoing method embodiment.
  • the terminal device chip receives information from other modules in the terminal device, such as a radio frequency module or an antenna, and the information is sent by the network device to the terminal device.
  • processors in the embodiment of the present application may be a central processing unit (CPU), and may be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof.
  • a general purpose processor can be a microprocessor or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by a processor executing software instructions.
  • the software instructions can be composed of corresponding software modules, which can be stored in random access memory (RAM), flash memory, read-only memory (ROM), programmable read-only memory (Programmable ROM). , PROM), Erasable PROM (EPROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Register, Hard Disk, Mobile Hard Disk, CD-ROM, or well known in the art Any other form of storage medium.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a transmitting device or a receiving device. Of course, the processor and the storage medium can also exist as discrete components in the transmitting device or the receiving device.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in or transmitted by a computer readable storage medium.
  • the computer instructions can be from a website site, computer, server or data center to another website site by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) Transfer from a computer, server, or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State Disk (SSD)) or the like.
  • plural refers to two or more.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character “/” in this article generally indicates that the contextual object is an “or” relationship; in the formula, the character “/” indicates that the contextual object is a "divide” relationship.

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Abstract

本申请提供了一种抢占资源进行数据传输的方法和装置，涉及无线通信领域。该方法包括：终端设备根据下行控制信息DCI的类型可以确定被抢占的时频资源上是否有该DCI调度的数据，从而可以确定被抢占的时频资源上传输的数据是否要参与数据译码。这种通过DCI的类型来隐式确定被抢占的时频资源上传输的数据的处理方法，节省了空口的信令开销，提高了空口的传输效率。

Description

抢占资源进行数据传输的方法
本申请要求于2017年11月29日提交中国国家知识产权局、申请号为201711230641.6、发明名称为“抢占资源进行数据传输的方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及无线通信领域，尤其涉及抢占资源进行数据传输的方法和装置。
背景技术
5G移动通信系统支持增强型移动宽带(enhanced mobile broadband，eMBB)业务、高可靠低时延通信(ultra reliable and low latency communications，URLLC)业务以及海量机器类通信(massive machine type communications，mMTC)业务。典型的eMBB业务有：超高清视频、增强现实(augmented reality，AR)、虚拟现实(virtual reality，VR)等，这些业务的主要特点是传输数据量大、传输速率很高。典型的URLLC业务有：工业制造或生产流程中的无线控制、无人驾驶汽车和无人驾驶飞机的运动控制以及远程修理、远程手术等触觉交互类应用，这些业务的主要特点是超高可靠性、低延时，传输数据量较少以及具有突发性。典型的mMTC业务有：智能电网配电自动化、智慧城市等，主要特点是联网设备数量巨大、传输数据量较小、数据对传输时延不敏感，这些mMTC终端需要满足低成本和非常长的待机时间的需求。
不同业务对移动通信系统的需求不同，如何更好地同时支持多种不同业务的数据传输需求，是当前5G移动通信系统所需要解决的技术问题之一。
URLLC业务的数据包的产生具有突发性和随机性，可能在很长一段时间内都不会产生数据包，也可能在很短时间内产生多个数据包。URLLC业务的数据包在多数情况下为小包，例如32个或者50个字节等。URLLC业务的数据包的特性会影响通信系统中的传输资源的分配方式。这里的传输资源包括但不限于：时域符号、频域资源、时频资源、码字资源以及波束资源等。通常传输资源的分配由基站来完成，下面以基站为例进行说明。如果基站采用预留资源的方式为URLLC业务分配传输资源，则在无URLLC业务数据需要传输的时候预留的传输资源是浪费的。而且URLLC业务的短时延特性要求数据包在极短的时间内传输完成，所以基站需要预留足够大的带宽给URLLC业务，从而导致传输资源的利用率严重下降。
由于URLLC业务的数据的突发性，为了提高系统资源利用率，基站通常不会为URLLC业务的下行数据传输预留资源。当URLLC业务数据到达基站时，如果此时没有空闲的时频资源，基站为了满足URLLC业务的超短时延需求，无法等待将本次调度的eMBB业务数据传输完成之后再对URLLC业务数据进行调度。基站可以采用抢占(preemption)的方式，为URLLC业务数据分配资源。如图1所示，这里的抢占是指基站在已经分配的、用于传输eMBB业务数据的时频资源上选择部分或全部的时频资源用于传输URLLC业务数据。当URLLC业务数据抢占了用于传输eMBB业务数据的部分或全部时频资源时，在被抢占的时频资源上eMBB业务数据的发射功率被设为零，或者在被抢占的时频资源上不发送eMBB业务数据，也可以称为eMBB业务数据被打孔或用于传输eMBB业务数据的时频资源被打孔。如果接收eMBB业务数据的终端不知 道哪部分数据受到抢占的影响，那么该终端将可能把URLLC业务数据当做eMBB业务数据进行译码和混合自动重传请求(hybrid automatic repeat request，HARQ)合并，将严重影响eMBB业务数据的译码以及HARQ合并的性能。
当上述资源抢占发生时，为了降低资源抢占对eMBB业务数据的影响，基站可以发送抢占指示(preemption indication，PI)给接收eMBB业务数据的终端，用于通知该终端哪些传输资源被抢占了。该终端收到该PI后，会将PI所指示的时频资源上接收到的数据从缓存中清空，避免URLLC业务数据对eMBB业务数据译码的影响，从而提升eMBB业务数据的传输性能。PI承载在下行控制信息(downlink control information，DCI)中，通过物理下行控制信道(physical downlink control channel，PDCCH)发送给一组终端。
当一个终端同时支持URLLC业务和eMBB业务时，可能会出现发给该终端的URLLC业务数据抢占该终端设备的eMBB业务数据的传输资源的情况。此时，该终端收到PI后，如果将PI所指示的时频资源上接收到的数据都从缓存中清空，那么URLLC业务数据也会被清空。
发明内容
本申请提供了一种抢占资源进行数据传输的方法和装置，当用于传输第二业务数据的时频资源被抢占用于传输第一业务数据时，终端设备在对第二业务数据进行接收处理时，可以丢弃在被抢占的时频资源上接收到的数据，使得在被抢占的时频资源上接收到的数据不参与第二业务数据的译码和/或HARQ合并，从而提升第二业务数据的传输性能，同时，终端设备在对第一业务数据进行接收处理时，在被抢占的时频资源上传输的第一业务数据不会因为PI而丢弃，使得在被抢占的时频资源上传输的第一业务数据能够正常参与译码，确保第一业务数据的正常传输。
第一方面，提供了一种抢占资源进行数据传输的方法，包括：接收第一控制信息，第一控制信息用于指示通信装置在第一时频资源中接收第一数据；接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输；根据第一控制信息的特征或第一数据的特征确定在第三时频资源上是否有第一数据，其中，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。该数据传输方法的执行主体为通信装置，该通信装置可以是终端设备也可以是应用于终端设备的芯片或芯片组。以终端为执行主体为例，终端设备根据第一控制信息的特征或第一数据的特征确定在第三时频资源上是否有第一数据，隐式确定了第三时频资源上的数据的接收处理，节省了信令开销，提高了空口传输效率。
在第一方面的一种可能的实现方式中，当第一控制信息的类型为第一类型时，确定在第三时频资源上有第一数据；和/或，当第一控制信息的类型不是第一类型时，确定在第三时频资源上没有第一数据。
在第一方面的一种可能的实现方式中，当第一控制信息的起始传输位置不在一个时隙的起始位置时，确定在第三时频资源上有第一数据。
在第一方面的一种可能的实现方式中，当传输第一数据的传输时间间隔小于第一阈值时，确定在第三时频资源上有第一数据；和/或，当传输第一数据的传输时间间隔大于等于第一阈值时，确定在第三时频资源上没有第一数据。
在第一方面的一种可能的实现方式中，当传输第一数据的传输时间间隔小于等于第一阈值时，确定在第三时频资源上有第一数据；和/或，当传输第一数据的传输时间间隔大于第一阈值时，确定在第三时频资源上没有第一数据。
在第一方面的一种可能的实现方式中，当传输第一数据的子载波间隔大于第二阈值时，确定在第三时频资源上有第一数据；和/或，当传输第一数据的子载波间隔小于等于第二阈值时，确定在第三时频资源上没有第一数据。
在第一方面的一种可能的实现方式中，当传输第一数据的子载波间隔大于等于第二阈值时，确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响；当传输第一数据的子载波间隔小于第二阈值时，确定在第三时频资源上没有数据，即第一数据的接收受PI的影响。
在第一方面的一种可能的实现方式中，接收第三控制信息，第三控制信息用于指示通信装置在第四时频资源中接收第三数据；第三控制信息包括第一指示信息，第一指示信息用于指示通信装置在第五时频资源上是否有第一数据，其中，第五时频资源为第六时频资源中与第三时频资源无重叠的时频资源，第六时频资源为第四时频资源与第二时频资源重叠的时频资源。
第二方面，提供了一种抢占资源进行数据传输的方法，包括：接收第一控制信息，第一控制信息用于指示通信装置在第一时频资源中接收第一数据；接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输；接收第三控制信息，第三控制信息用于指示通信装置在第四时频资源中接收第三数据，第三控制信息包括第一指示信息，第一指示信息用于指示通信装置在第五时频资源上是否有第一数据，其中，第五时频资源为第六时频资源中与第三时频资源无重叠的时频资源，第六时频资源为第四时频资源与第二时频资源重叠的时频资源，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。该数据传输方法的执行主体为通信装置，该通信装置可以是终端设备也可以是应用于终端设备的芯片或芯片组。以终端为执行主体为例，终端设备根据第一指示信息确定终端设备在第五时频资源上是否有第一数据，显示指示了第五时频资源上的数据的接收处理，避免将可以参与译码的数据丢弃，提高了空口传输效率。
第三方面，提供了一种抢占资源进行数据传输的方法，包括：接收第一控制信息，第一控制信息用于指示通信装置在第一时频资源中接收第一数据；接收第三控制信息，第三控制信息用于指示通信装置在第四时频资源中接收第三数据；第三控制信息还包括第一指示信息，第一指示信息用于指示通信装置在第五时频资源上是否有所述第一数据，其中，第五时频资源的时域对应第一时频资源与第四时频资源重叠的时域，第五时频资源的频域对应第一时频资源与第四时频资源无重叠的频域。该数据传输方法的执行主体为通信装置，该通信装置可以是终端设备也可以是应用于终端设备的芯片或芯片组。以终端为执行主体为例，终端设备根据第一指示信息确定终端设备在第五时频资源上是否有第一数据，显示指示了第五时频资源上的数据的接收处理，避免将可以参与译码的数据丢弃，提高了空口传输效率。
第四方面，提供了一种抢占资源进行数据传输的方法，包括：接收第四控制信息，第四控制信息用于指示通信装置在第一带宽部分BWP上接收第一数据；接收第一控制信息，第一控制信息用于指示通信装置在第一时频资源中接收第一数据；接收第二控制 信息，第二控制信息用于指示第二时频资源中没有信息传输；根据第二控制信息与第一BWP的关系确定在第三时频资源上是否有第一数据，其中，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。该数据传输方法的执行主体为通信装置，该通信装置可以是终端设备也可以是应用于终端设备的芯片或芯片组。以终端为执行主体为例，终端设备根据第二控制信息与第一BWP的关系确定在第三时频资源上是否有第一数据，隐式确定了第三时频资源上的数据的接收处理，节省了信令开销，提高了空口传输效率。
在第一方面的一种可能的实现方式中，当第二控制信息属于第一BWP时，确定在第三时频资源上没有第一数据；和/或，当第二控制信息不属于第一BWP时，确定在第三时频资源上有第一数据。
第五方面，提供了一种通信装置，包括处理单元和收发单元，其中，处理单元用于执行上述第一方面或第一方面的任意可能的实现方式中的数据处理功能，收发单元用于执行上述第一方面或第一方面的任意可能的实现方式中的数据收发功能；或者，处理单元用于执行上述第二方面或第二方面的任意可能的实现方式中的数据处理功能，收发单元用于执行第二方面或第二方面的任意可能的实现方式中的数据收发功能；或者，处理单元用于执行上述第三方面或第三方面的任意可能的实现方式中的数据处理功能，收发单元用于执行第三方面或第三方面的任意可能的实现方式中的数据收发功能；或者，处理单元用于执行上述第四方面或第四方面的任意可能的实现方式中的数据处理功能，收发单元用于执行第四方面或第四方面的任意可能的实现方式中的数据收发功能。
第六方面，提供了一种通信装置，包括处理器和存储器，其中，存储器用于存储计算机程序或指令，处理器用于执行存储器存储的计算机程序或指令，当处理器执行存储器存储的计算机程序或指令时，通信装置用于执行上述第一方面或第一方面的任意可能的实现方式中的方法；或者，通信装置用于执行上述第二方面或第二方面的任意可能的实现方式中的方法；或者，通信装置用于执行上述第三方面或第三方面的任意可能的实现方式中的方法；或者，通信装置用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。通信装置中的各个组件之间通过内部连接通路互相通信，如通过总线传递控制和/或数据信号。
第七方面，提供了一种通信装置，包括处理电路和收发电路，其中，处理电路用于执行上述第五方面中处理单元的功能，收发电路用于执行上述第五方面中收发单元的功能。通信装置中的各个电路之间通过内部电路互相通信。
第八方面，提供了一种计算机可读存储介质用于存储计算机程序或指令，当计算机程序或指令在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法；或者，使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法；或者，使得计算机执行上述第三方面或第三方面的任意可能的实现方式中的方法；或者，使得计算机执行上述第四方面或第四方面的任意可能的实现方式中的方法。
第九方面，提供了一种计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意可能的实现方式中的方法；或者，使得计算机执行上述第二方面或第二方面的任意可能的实现方式中的方法；或者，使得计算机执行上述第三 方面或第三方面的任意可能的实现方式中的方法；或者，使得计算机执行上述第四方面或第四方面的任意可能的实现方式中的方法。
附图说明
图1为URLLC业务数据抢占用于传输eMBB业务数据的时频资源示意图；
图2为本申请的实施例应用的移动通信系统的架构示意图；
图3为本申请的实施例提供的一种时频资源A、时频资源B和时频资源C之间的关系示意图；
图4为本申请的实施例提供的另一种URLLC业务数据抢占用于传输eMBB业务数据的时频资源示意图；
图5为本申请的实施例提供的一种抢占资源进行数据传输的方法的流程示意图；
图6为本申请的实施例提供的另一种抢占资源进行数据传输的方法的流程示意图；
图7为本申请的实施例提供的又一种抢占资源进行数据传输的方法的流程示意图；
图8本申请的实施例提供的又一种URLLC业务数据抢占用于传输eMBB业务数据的时频资源示意图；
图9为本申请的实施例提供的又一种抢占资源进行数据传输的方法的流程示意图；
图10为本申请的实施例提供的一种通信装置的结构示意图；
图11为本申请的实施例提供的另一种通信装置的结构示意图；
图12为本申请的实施例提供的又一种通信装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行描述。
图2是本申请的实施例应用的移动通信系统的架构示意图。如图2所示，该移动通信系统包括核心网设备210、无线接入网设备220和至少一个终端设备(如图2中的终端设备230和终端设备240)。终端设备通过无线的方式与无线接入网设备相连，无线接入网设备通过无线或有线方式与核心网设备连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端设备可以是固定位置的，也可以是可移动的。图2只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图2中未画出。本申请的实施例对该移动通信系统中包括的核心网设备、无线接入网设备和终端设备的数量不做限定。
无线接入网设备是终端设备通过无线方式接入到该移动通信系统中的接入设备，可以是基站NodeB、演进型基站eNodeB、5G移动通信系统或新一代无线(new radio，NR)通信系统中的基站、未来移动通信系统中的基站、WiFi系统中的接入节点等，本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。在本申请中，无线接入网设备简称网络设备，如果无特殊说明，在本申请中，网络设备均指无线接入网设备。在本申请中，术语5G和NR可以等同。
终端设备也可以称为终端Terminal、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。终端设备可以是手机(mobile phone)、 平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端设备、增强现实(Augmented Reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
无线接入网设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对无线接入网设备和终端设备的应用场景不做限定。
无线接入网设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过免授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和免授权频谱进行通信。无线接入网设备和终端设备之间可以通过6吉兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线接入网设备和终端设备之间所使用的频谱资源不做限定。
下面以发送设备是网络设备、接收设备是终端设备的下行数据传输为例进行描述。
当用于传输eMBB业务数据的时频资源受到影响的时候，网络设备可以向终端设备发送辅助接收的指示信息，该辅助接收的指示信息用于通知终端设备受到影响的时频区域。终端设备收到该辅助接收的指示信息后，可以把对应在该受影响的时频区域接收到的eMBB业务数据丢弃，该区域的eMBB业务数据不参与译码以及HARQ合并，从而提高译码成功率，提高数据传输性能。
用于传输eMBB业务数据的时频资源受到影响包括:
(1)用于传输eMBB业务数据的时频资源被抢占用于传输其它业务数据或其它信号，或被设置为预留资源。例如，用于传输URLLC业务数据；或用于传输干扰管理相关的信号；或用于预留给其它系统使用。这里的干扰管理相关的信号可以包括参考信号或零功率参考信号。这里的预留资源可以是预留给长期演进(long term evolution，LTE)系统使用，应用于NR和LTE共存场景，例如，一个子帧的前三个时域符号可以预留给LTE的PDCCH使用。预留资源也可以用于NR的参考信号的测量，例如当两个UE的带宽部分(bandwidth part，BWP)部分重叠时，这两个UE的参考信号可能会相互干扰，此时可以通过预留资源的方式将两个UE重叠的时频资源中的一部分预留出来，避免干扰。在控制信道和数据信道复用的场景，将其中一个信道的资源的一部分配置为预留资源之后，另外一个信道就可以使用该预留资源了。在本申请中，如果没有特别说明，符号与时域符号可以等同。
(2)用于传输eMBB业务数据的时频资源被其它信号干扰，例如被邻区的信号干扰。
当用于传输eMBB业务数据的时频资源受到影响时，网络设备对eMBB业务数据有两类不同的处理方式：一类是打孔，此时在受影响的时频资源上的eMBB的业务数据被打孔打掉，即在受影响的时频资源上不发送eMBB的业务数据，或者也可以理解为在受影响的时频资源上的eMBB的业务数据的发射功率被置为零；另一类是速率匹配方式，此时在受影响的时频资源上不承载eMBB业务数据，网络设备在对eMBB业务数据做数据映 射的时候不将受影响的时频资源作为承载eMBB业务数据的时频资源。当网络设备采用打孔方式对受影响的时频资源上传输的数据进行处理时，终端设备在对eMBB业务数据进行接收处理时，对应的可以丢弃在受影响的时频资源上传输的数据，使得在受影响的时频资源上传输的数据不参与eMBB业务数据的译码。当网络设备采用速率匹配方式对受影响的时频资源上传输的数据进行处理时，终端设备在对eMBB业务数据进行解调处理时不从受影响的时频资源上提取数据。
对于预留资源，网络设备和终端设备一般使用速率匹配的方式进行处理，因此预留资源也可以称之为速率匹配资源(rate matching resource，RMR)。
当用于传输eMBB业务数据的时频资源被抢占用于传输URLLC业务数据时，辅助接收的指示信息也可以称为抢占指示(preemption indication，PI)，本申请对辅助接收的指示信息的具体名称不作限定。
可以理解的是，本申请的实施例也可以应用于其它应用场景，例如，第一信息抢占了用于传输第二信息的时频资源，或者第一信息的传输干扰了第二信息的传输，其中，第一信息的传输优先级高于第二信息，第二信息的传输资源允许被抢占。本申请对应用场景不作限定。这里被影响的业务数据除了eMBB业务之外，也可能是uMTC业务或其它业务。下面以URLLC业务数据抢占用于传输eMBB业务数据的时频资源为例，对本申请提供的实施例进行描述。但本申请的实施例对业务数据的具体类型不做限定。
本申请的实施例可以应用于如下两个场景：
场景一：UE1同时支持URLLC业务和eMBB业务的数据传输，UE1的URLLC业务数据抢占了用于传输UE2的eMBB业务数据的传输资源。UE1可以为图2中的终端设备230，UE2可以为图2中的终端设备240。由于UE1同时支持URLLC业务和eMBB业务的数据传输，所以UE1可以接收来自网络设备的PI。
场景二：UE1同时支持URLLC业务和eMBB业务的数据传输，UE1的URLLC业务数据抢占了用于传输UE1的eMBB业务数据的传输资源。
当UE同时支持URLLC业务和eMBB业务时，如上述场景一和场景二中的UE1，UE可以接收到来自网络设备的PI，该PI指示被抢占的资源。UE收到PI后，如何根据PI判断是否要丢弃缓存中通过与PI所指示的时频资源有重叠的时频资源传输的数据，是本申请要解决的技术问题。
【实施例一】
在场景一和场景二中，假设网络设备通过DCI_A分配给URLLC业务数据的时频资源为时频资源A，URLLC业务数据称为数据A；网络设备通过DCI_B分配给eMBB业务数据的时频资源为时频资源B，eMBB业务数据称为数据B；PI指示被抢占的时频资源为时频资源C；时频资源A和时频资源C重叠的时频资源为时频资源D；时频资源B和时频资源C重叠的时频资源为时频资源E。这里的时频资源B既可以是场景一种分配给UE2的，也可以是场景二中分配给UE1的。DCI_A是网络设备调度URLLC业务数据的DCI，DCI_B是网络设备调度eMBB业务数据的DCI。图3给出了一种时频资源A、时频资源B和时频资源C之间的关系示意图。
当UE1收到PI之后，UE1可以根据DCI_A的特征或数据A的特征确定在时频资源D上是否有DCI_A所指示的数据。当UE2收到PI之后，UE2可以根据DCI_B的特征或数据 B的特征确定在时频资源E上是否有DCI_B所指示的数据。对于场景二，当UE1收到PI之后，UE1还可以根据DCI_B的特征或数据B的特征确定在时频资源E上是否有DCI_B所指示的数据。这里的DCI_A和DCI_B的特征包括DCI的类型或DCI的起始传输位置；数据A和数据B的特征包括传输数据的传输时间间隔或传输数据的子载波间隔。对于场景二，DCI_A和DCI_B的特征还包括传输DCI的相对位置，UE1可以根据传输DCI的相对位置确定时频资源E上传输的是DCI_A调度的数据A还是DCI_B调度的数据B。对于场景二，数据A和数据B的特征还包括数据起始传输的相对位置，UE1可以根据数据起始传输的相对位置确定时频资源E上传输的是DCI_A调度的数据A还是DCI_B调度的数据B。在本申请中，DCI调度的数据与DCI所指示的数据可以等同。
在场景二中，当UE1收到DCI_A时，DCI_A调度的时频资源A和DCI_B调度的时频资源B有交叠。UE1判断DCI_A调度的时频资源A上传输的数据A不受PI影响。因为DCI_A调度的数据A抢占了DCI_B调度的用于传输数据B的时频资源B中的部分或全部时频资源。由于数据A的传输时延要求很小，无法等到数据B传输完成后再进行数据传输，而此时网络设备又没有空闲资源可用或没有足够的空闲资源可用，因此网络设备通过DCI_A给数据A分配了时频资源A，其中，时频资源A与传输数据B的时频资源B部分或全部重叠。当同一个UE先后收到两个DCI且这两个DCI调度的时频资源有部分重叠时，该UE可以通过判断接收到的DCI的先后顺序来判断对应的数据的接收是否受PI影响，先收到的DCI调度的数据传输所使用的时频资源被后收到的DCI所抢占。也就是说，后收到的DCI所调度的数据的接收不受PI影响，而先收到的DCI所调度的数据受PI影响。
在本申请中，某个DCI调度的数据的接收受PI影响是指UE收到PI后，受影响的时频资源上传输的数据不参与UE对该DCI调度的数据的译码，具体可能有如下两种实现方式。(1)在受影响的这次数据传输中，受影响的时频资源上传输的数据仍然参与UE对该DCI调度的数据的译码，但受影响的时频资源上传输的数据会从该DCI调度的数据所对应的HARQ缓存中丢弃(flush)，不再参与后续的HARQ合并。(2)在受影响的这次数据传输中，UE在收到PI之前，对该DCI调度的所有数据做了一次译码；UE收到PI后，将受影响的时频资源上传输的数据排除之后重新再做一次译码。(3)在受影响的这次数据传输中，UE在收到PI之前，对该DCI调度的数据还没进行译码，UE收到PI后，将受影响的时频资源上传输的数据排除之后进行译码。这里的受影响的时频资源是指PI所指示的被抢占的时频资源与该DCI调度的时频资源相互重叠的时频资源。某个DCI调度的数据的接收不受PI影响是指UE收到PI后，PI不影响对该DCI调度的数据的译码，UE对该DCI调度的数据的译码的处理与没有收到该PI时的处理相同，受影响的时频资源上传输的数据会参与UE对该DCI调度的数据的译码。
当DCI调度的数据受PI影响时，上述丢弃或排除受影响的时频资源上传输的数据可以有三种不同的处理方式：第一种是只丢弃受影响的时频资源上传输的数据；第二种，为了实现简化，可以丢弃受影响的整个编码块(code block，CB)的数据；第三种，还可以进一步简化实现，丢弃受影响的整个编码块组(CB group，CBG)的数据。这里受影响的CB或CBG是指该传输该CB或CBG的时频资源中有一部分是受影响的时频资源。上述第一种处理方式也可以称为对物理数据进行丢弃(flush)，第二种和第三种处理方 式也可以称为对逻辑数据进行flush。
如图5所示，本申请提供了一种抢占资源进行数据传输的方法的流程示意图。
S510，终端设备接收来自网络设备的第一控制信息，第一控制信息用于指示终端设备在第一时频资源中接收第一数据。
与上述场景一和场景二相对应，这里的第一控制信息可以为DCI_A或DCI_B，第一时频资源可以为时频资源A或时频资源B，第一数据可以为数据A或数据B。第一数据可以为URLLC业务数据的一个或多个传输块(transport block，TB)的数据，也可以为eMBB业务数据中的一个或多个TB的数据。
S520，终端设备接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输。这里没有信息传输对应被抢占情况，当某个业务1的时频资源其它业务2抢占时，在被抢占的时频资源中，就不再传输业务1的数据，而是传输业务2的数据，因此对于业务1来说，没有信息传输。
与上述场景一和场景二相对应，这里的第二控制信息可以为PI，第二时频资源可以为时频资源C。这里的第二时频资源中没有信息传输是指时频资源C被抢占，时频资源E中传输的数据B被打孔，对应的时频资源E上不传输数据B，或时频资源E上传输的数据B的功率被设为零。
S530，终端设备根据第一控制信息的特征或第一数据的特征确定在第三时频资源上是否有第一数据，或者，终端设备根据第一控制信息的特征或第一数据的特征确定第一数据的接收是否受第二控制信息影响，其中，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。进一步的，当终端设备确定在第三时频资源上有第一数据时，第三时频资源上传输的数据参与终端设备对第一数据的译码；当终端设备确定第三时频资源上没有第一数据时，第三时频资源上传输的数据不参与终端设备对第一数据的译码。更具体的描述可以参考上述对数据的接收受PI影响的解释。
与上述场景一和场景二相对应，这里的第三时频资源可以为时频资源D或时频资源E。
具体的，第一控制信息的特征包括第一控制信息的类型或第一控制信息的起始传输位置。
可选的，当第一控制信息的类型为第一类型时，终端设备确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响；当第一控制信息的类型不是第一类型时，终端设备确定第三时频资源上没有第一数据，即第一数据的接收受PI的影响。对于URLLC业务，为了提高DCI的传输可靠性，通常采用的DCI是压缩(compact)DCI。因此，这里的第一类型可以为compact DCI，当然第一类型也可以有其它具体的类型名称，本申请对第一类型的具体名称不做限定。第一类型的DCI所调度的时频资源不允许被抢占，对应的，第一类型的DCI所调度的数据的接收不受PI的影响。第一类型的具体取值可以协议预定义，也可以网络设备确定后，通过信令通知给终端设备。
具体的，可以根据以下方式中的至少一种确定第一控制信息的类型是否是第一类型：
(1)给第一控制信息加扰的无线网络临时标识(radio network temporary identifier，RNTI)是第一类型控制信息的RNTI。
(2)第一控制信息的净荷大小(payload size)等于第一类型控制信息的payload size。
(3)第一控制信息中的第一字段指示的是第一类型控制信息，例如，第一字段的名称为Identifier for DCI formats。
(4)第一控制信息的错误概率达到了第一类型控制信息对错误概率的要求，这里的错误概率可以是虚警概率也可以是漏警概率，也可以是虚警概率和漏警概率的组合。具体的，可以通过校验方式来判断错误概率，例如，可以通过循环冗余校验(cyclic redundancy code，CRC)序列的长度来判断，当CRC序列的长度长于某个阈值时，则认为是第一类型的控制信息；或者可以通过校验的步骤来判断，当第一控制信息需要采用两步或两步以上的校验方式时，则认为第一控制信息是第一类型的控制信息。
(5)当第一控制信息的编码方式是某个特定的编码方式时，确定第一控制信息为第一类型的控制信息。例如，第一控制信息的编码方式可以为低密度奇偶校验(low-density parity check,LDPC)或极化(polar)码中的某一种。
可选的，当第一控制信息的起始传输位置不在一个时隙的起始位置时，终端设备确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响。如图1所示，当URLLC业务数据抢占用于传输eMBB业务数据的时频资源时，调度该URLLC业务数据的DCI的起始传输位置不在时隙的起始位置，例如，在一个时隙的第四个时域符号。
第一数据的特征包括传输第一数据的传输时间间隔或传输第一数据的子载波间隔(subcarrier spacing，SCS)。
可选的，当传输第一数据的传输时间间隔小于第一阈值时，终端设备确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响；当传输第一数据的传输时间间隔大于等于第一阈值时，终端设备确定在第三时频资源没有第一数据，即第一数据的接收受PI的影响。可选的，当传输第一数据的传输时间间隔小于等于第一阈值时，终端设备确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响；当传输第一数据的传输时间间隔大于第一阈值时，终端设备确定在第三时频资源上没有第一数据，即第一数据的接收受PI的影响。第一阈值可以以符号为单位，不同SCS场景下第一阈值的取值可以相同；第一阈值也可以以时间为单位，不同的SCS场景下第一阈值的取值可以设为不同的值。第一阈值可以系统预定义，也可以由网络设备确定后，通过信令通知给终端设备。在本申请中，信令通知可以是无线资源控制(radio resource control，RRC)信令，也可以是物理层信令，还可以是媒体接入控制(medium access control)信令。信令可以是发给某个特定终端设备的；也可以是组信令，即发给一组终端设备的；还可以是广播信令，即发给小区内所有终端设备的。
可选的，当传输第一数据的子载波间隔大于第二阈值时，终端设备确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响；当传输第一数据的子载波间隔小于等于第二阈值时，终端设备确定在第三时频资源上没有数据，即第一数据的接收受PI的影响。可选的，当传输第一数据的子载波间隔大于等于第二阈值时，终端设备确定在第三时频资源上有第一数据，即第一数据的接收不受PI的影响；当传输第一数据的子载波间隔小于第二阈值时，终端设备确定在第三时频资源上没有数据，即第一数据的接收受PI的影响。第一阈值可以系统预定义，也可以由网络设备确定后，通过信令通 知给终端设备。
本申请实施例中，终端设备根据第一控制信息的特征或第一数据的特征确定在第三时频资源上是否有第一数据，隐式确定了第三时频资源上的数据的接收处理，节省了信令开销，提高了空口传输效率。
【实施例二】
如上述场景二所述，UE1的URLLC业务数据抢占了用于传输UE1的eMBB业务数据的传输资源。PI所指示的被抢占的时频资源C的指示粒度比较粗，例如，指示的是时域上以符号为粒度、频域上以带宽部分(bandwidth part，BWP)为粒度的时频资源被抢占，或者指示的是时域上以符号为粒度、频域上以BWP的一半为粒度的时频资源被抢占。这样就会出现如图4所示的情况，虽然时频资源C包括了第四、第五和第六个符号内用于传输UE1的eMBB业务数据的所有时频资源，但实际上UE1的URLLC业务数据只使用了时频资源C中的部分时频资源。第四、第五和第六个符号中用于传输UE1的eMBB业务数据的时频资源中还有一部分没有被抢占，如图4中的时频资源F。现有技术中，UE1只能根据时频资源C进行数据的丢弃操作，从而导致时频资源F上的数据虽然是eMBB业务数据，但是却由于PI的影响而被UE1丢弃，导致了UE1的数据传输性能下降。
对于场景二，UE1可以得到时频资源A、时频资源B和时频资源C的具体位置，从而可以确定是否存在时频资源F。但是UE1无法确定是否还有其它终端设备的URLLC业务数据抢占了时频资源F中的部分或全部时频资源，因此无法判定能否保留时频资源F上传输的数据。但网络设备知道是否有其它终端设备的URLLC业务数据抢占了时频资源F中的部分或全部时频资源，网络设备可以将时频资源F是否被其它终端设备抢占的信息通过调度URLLC业务数据的DCI实时通知UE1。从而使得UE1可以确定是否要丢弃时频资源F上的eMBB的数据。
如图6所示，本申请提供了一种抢占资源进行数据传输的方法的流程示意图。
S610，终端设备接收来自网络设备的第一控制信息，第一控制信息用于指示终端设备在第一时频资源中接收第一数据。
与场景二相对应，这里的第一控制信息可以为DCI_B，第一时频资源可以为时频资源B，第一数据可以为数据B。第一数据可以为eMBB业务数据中的一个或多个TB的数据。
S620，终端设备接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输。
与上述场景二相对应，这里的第二控制信息可以为PI，第二时频资源可以为时频资源C。这里的第二时频资源中没有信息传输是指时频资源C被抢占，时频资源E中传输的数据B被打孔，对应的时频资源E上不传输数据B，或时频资源E上传输的数据B的功率被设为零。
S630，终端设备接收第三控制信息，第三控制信息用于指示终端设备在第四时频资源中接收第三数据；第三控制信息包括第一指示信息，第一指示信息用于指示终端设备在第五时频资源上是否有第一数据，或者，用于指示第一数据的接收是否受第二控制信息影响，其中，第五时频资源为第六时频资源中与第三时频资源无重叠的时频资源，第六时频资源为第四时频资源与第二时频资源重叠的时频资源，第三时频资源为第一时频 资源与第二时频资源重叠的时频资源。
进一步的，当第一指示信息指示在第五时频资源上有第一数据时，第五时频资源上传输的数据参与终端设备对第一数据的译码；当第一指示信息指示第五时频资源上没有第一数据时，第五时频资源上传输的数据不参与终端设备对第一数据的译码。更具体的描述可以参考上述实施例一中对数据的接收受PI影响的解释。
与上述场景二相对应，这里的第三控制信息为DCI_A，第四时频资源为时频资源A，第三数据为数据A。第三数据为URLLC业务数据的一个或多个传输块(transport block，TB)的数据。第五时频资源对应图4中的时频资源F。
具体的，第一指示信息可以为一比特，用于指示第五时频资源上是否有第一数据。例如，第一指示信息取值为1时，表示要在第五时频资源上有第一数据，即第一数据的接收不受第二控制信息的影响；第一指示信息取值为0时，表示在第五时频资源上没有第一数据，即第一数据的接收受第二控制信息的影响。或者，第一指示信息取值为0时，表示要在第五时频资源上有第一数据；第一指示信息取值为1时，表示在第五时频资源上没有第一数据。
对于场景二的一个特殊情况，如果在一个参考下行资源(reference downlink resource，RDR)所对应的时频区域，只发生了UE1的URLLC业务数据抢占了UE1的eMBB业务数据，那么网络设备可以不发送PI，对应的实施例如图7所示。
S710，终端设备接收来自网络设备的第一控制信息，第一控制信息用于指示终端设备在第一时频资源中接收第一数据。
与场景二相对应，这里的第一控制信息DCI_B，第一时频资源可以为时频资源B，第一数据可以为数据B。第一数据可以为eMBB业务数据中的一个或多个TB的数据。
S720，终端设备接收第三控制信息，第三控制信息用于指示终端设备在第四时频资源中接收第三数据；第三控制信息还包括第一指示信息，第一指示信息用于指示终端设备在第五时频资源上是否有第一数据，其中，第五时频资源的时域对应第一时频资源与第四时频资源重叠的时域，第五时频资源的频域对应第一时频资源与第四时频资源无重叠的频域。
进一步的，当第一指示信息指示在第五时频资源上有第一数据时，第五时频资源上传输的数据参与终端设备对第一数据的译码；当第一指示信息指示第五时频资源上没有第一数据时，第五时频资源上传输的数据不参与终端设备对第一数据的译码。
与上述场景二相对应，这里的第三控制信息为DCI_A，第四时频资源为时频资源A，第三数据为数据A。第三数据为URLLC业务数据的一个或多个传输块(transport block，TB)的数据。第五时频资源对应图4中的时频资源F。
具体的，第一指示信息可以为一比特，用于指示第五时频资源上是否有第一数据。例如，第一指示信息取值为1时，表示要在第五时频资源上有第一数据，即不丢弃第五时频资源上的数据；第一指示信息取值为0时，表示在第五时频资源上没有第一数据，即丢弃第五时频资源上的数据。或者，第一指示信息取值为0时，表示要在第五时频资源上有第一数据；第一指示信息取值为1时，表示在第五时频资源上没有第一数据。
本如图6和图7所示的实施例中，终端设备根据第一指示信息确定终端设备在第五时频资源上是否有第一数据，显示指示了第五时频资源上的数据的接收处理，避免将可 以参与译码的数据丢弃，提高了空口传输效率。
【实施例三】
如图8所示，UE1同时通过时频资源A接收URLLC业务数据、通过时频资源B接收eMBB业务数据。网络设备给UE1配置了两个BWP，为URLLC业务配置了BWP1，为eMBB业务配置了BWP2。图8中，时频资源A中有一部分与时频资源B重叠，即URLLC业务数据部分抢占了时频资源B。由于BWP2内用于传输eMBB业务数据的时频资源被抢占了，所以网络设备会发送与BWP2相对应的PI，或者说会在BWP2中发送PI。对应的，UE1接收到BWP2中的PI后，会根据该PI确定用于传输eMBB业务数据的时频资源被抢占的情况，但UE1不会根据BWP2中的PI来判断用于传输URLLC业务数据的时频资源被抢占的情况，因为URLLC业务属于BWP1、不属于BWP2。因此，UE1不能根据BWP2中的PI来确定BWP1中传输业务数据的时频资源被抢占的情况。如果网络设备没有在BWP1中配置PI相关的资源或启动PI机制，则UE可以认为隶属于BWP1的业务数据的时频资源不会被抢占。
上述中，配置BWP可以是在调度数据的DCI中，增加一个指示字段用于指示当前调度的数据所属的BWP的指示，或者增加一个指示字段指示下n次调度的数据所属的BWP的指示，n是正整数。
如图9所示，本申请提供了一种抢占资源进行数据传输的方法的流程示意图。
S910，终端设备接收来自网络设备的第四控制信息，第四控制信息用于指示终端设备在第一BWP上接收第一数据。
例如，网络设备为UE1分配在BWP1上进行URLLC业务的数据传输，和/或，在BWP2上进行eMBB业务的数据传输。第四控制信息可以通过RRC信令来承载或物理层信令来承载。
S920，终端设备接收来自网络设备的第一控制信息，第一控制信息用于指示终端设备在第一时频资源中接收第一数据。
与上述场景一和场景二相对应，这里的第一控制信息可以为DCI_A或DCI_B，第一时频资源可以为时频资源A或时频资源B，第一数据可以为数据A或数据B。第一数据可以为URLLC业务数据的一个或多个传输块(transport block，TB)的数据，也可以为eMBB业务数据中的一个或多个TB的数据。
S930，终端设备接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输。
与上述场景一和场景二相对应，这里的第二控制信息可以为PI，第二时频资源可以为时频资源C。这里的第二时频资源中没有信息传输是指时频资源C被抢占，时频资源E中传输的数据B被打孔，对应的时频资源E上不传输数据B，或时频资源E上传输的数据B的功率被设为零。
S940，终端设备根据第二控制信息与第一BWP的关系确定在第三时频资源上是否有第一数据，或者，终端设备根据第二控制信息与第一BWP的关系确定第一数据的接收是否受第二控制信息影响，其中，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。进一步的，当终端设备确定在第三时频资源上有第一数据时，第三时频资源上传输的数据参与终端设备对第一数据的译码；当终端设备确定第三时频资源上没有第一 数据时，第三时频资源上传输的数据不参与终端设备对第一数据的译码。更具体的描述可以参考上述实施例一中对数据的接收受PI影响的解释。
与上述场景一和场景二相对应，这里的第三时频资源可以为时频资源D或时频资源E，第二数据为时频资源D上传输的数据A或时频资源E上传输的数据B。
具体的，当第二控制信息与第一BWP对应时，或者说第二控制信息属于第一BWP时，终端设备确定在第三时频资源上没有第一数据；当第二控制信息与第一BWP不对应时，或者说第二控制信息不属于第一BWP时，终端设备确定在第三时频资源上有第一数据。
上述实施例三的应用场景不限定场景一或场景二，还可以是其它应用场景。更为一般的描述是，DCI调度的数据的接收不受隶属于不同BWP的PI的影响。例如DCI1调度的数据隶属于BWP1，那么如果一个PI不属于BWP1，则DCI1调度的数据不受此PI的影响。
上述本申请提供的实施例中，从终端设备的角度对本申请实施例提供的数据传输方法进行了介绍。可以理解的是，为了实现上述功能，终端设备包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及方法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
图10、图11和图12为本申请的实施例提供的三种可能的通信装置的结构示意图。该通信装置实现上述方法实施例中终端设备的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请的实施例中，该通信装置可以是如图2所示的终端设备230或终端设备240，也可以是应用于终端设备的芯片。
如图10所示，通信装置1000包括收发单元1010和处理单元1020。
根据上述方法实施例一的相关描述，可以得到如下的与方法实施例一对应的装置实施例。
收发单元1010用于接收第一控制信息，第一控制信息用于指示收发单元1010在第一时频资源中接收第一数据。
收发单元1010还用于接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输。
处理单元1020用于根据第一控制信息的特征或第一数据的特征确定在第三时频资源上是否有第一数据，其中，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。
收发单元1010还用于接收第三控制信息，第三控制信息用于指示收发单元1010在第四时频资源中接收第三数据；第三控制信息包括第一指示信息，第一指示信息用于指示通信装置在第五时频资源上是否有所述第一数据，其中，第五时频资源为第六时频资源中与第三时频资源无重叠的时频资源，第六时频资源为第四时频资源与第二时频资源重叠的时频资源。
根据上述方法实施例三的相关描述，可以得到如下的与方法实施例三对应的装置实 施例。
收发单元1010用于接收第四控制信息，第四控制信息用于指示收发单元1010在第一带宽部分BWP上接收第一数据；
收发单元1010还用于接收第一控制信息，第一控制信息用于指示收发单元1010在第一时频资源中接收第一数据；
收发单元1010还用于接收第二控制信息，第二控制信息用于指示第二时频资源中没有信息传输；
处理单元1020用于根据第二控制信息与第一BWP的关系确定在第三时频资源上是否有所述第一数据，其中，第三时频资源为第一时频资源与第二时频资源重叠的时频资源。
根据上述方法实施例二的相关描述，可以得到与方法实施例二对应的装置实施例，这里不加赘述。
有关上述收发单元1010和处理单元1020更详细的描述可以直接参考上述方法实施例直接得到，这里不加赘述。
如图11所示，通信装置1100包括处理器1110和存储器1120，其中，存储器1120用于存储计算机程序或指令，处理器1110用于执行存储器存储的计算机程序或指令，当处理器1110执行存储器1120存储的计算机程序或指令时，通信装置1100用于完成如方法实施例中所述的方法。通信装置1100中的各个组件之间通过内部连接通路互相通信，如通过总线传递控制和/或数据信号。本申请实施例中对通信装置1100中包括的处理器1110和存储器1120的个数不做限定。
如图12所示，通信装置1200包括处理电路1210和收发电路1220，其中，处理电路1210用于执行上述处理单元1010的功能，收发电路1220用于执行上述收发单元1020的功能。通信装置1200中的各个电路之间通过内部电路互相通信。
当上述通信装置为终端设备的芯片时，该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息，该信息是网络设备发送给终端设备的。
在本申请的各个实施例中，如果没有特殊说明，不同的实施例之间的术语和描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现，也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable  PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于发送设备或接收设备中。当然，处理器和存储介质也可以作为分立组件存在于发送设备或接收设备中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
本文中的术语“多个”是指两个或两个以上。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。
以上所述，仅为本申请的实施例的具体实施方式，任何熟悉本技术领域的技术人员在本申请公开揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的实施例的保护范围之内。

Claims (19)

  1. 一种抢占资源进行数据传输的方法，包括：
    接收第一控制信息，所述第一控制信息用于指示通信装置在第一时频资源中接收第一数据；
    接收第二控制信息，所述第二控制信息用于指示第二时频资源中没有信息传输；
    根据所述第一控制信息的特征或所述第一数据的特征确定在第三时频资源上是否有所述第一数据，其中，所述第三时频资源为所述第一时频资源与所述第二时频资源重叠的时频资源。
  2. 根据权利要求1所述的方法，其特征在于，所述第一控制信息的特征包括第一控制信息的类型，所述根据所述第一控制信息的特征确定在所述第三时频资源上是否有所述第一数据，具体包括：
    当所述第一控制信息的类型为第一类型时，确定在所述第三时频资源上有所述第一数据；和/或，
    当所述第一控制信息的类型不是第一类型时，确定在所述第三时频资源上没有所述第一数据。
  3. 根据权利要求1所述的方法，其特征在于，所述第一控制信息的特征包括所述第一控制信息的起始传输位置，所述根据所述第一控制信息的特征确定在所述第三时频资源上是否有所述第一数据，具体包括：
    当所述第一控制信息的起始传输位置不在一个时隙的起始位置时，确定在所述第三时频资源上有所述第一数据。
  4. 根据权利要求1所述的方法，其特征在于，所述第一数据的特征包括传输所述第一数据的传输时间间隔，所述根据所述第一数据的特征确定在所述第三时频资源上是否有所述第一数据，具体包括：
    当传输所述第一数据的传输时间间隔小于第一阈值时，确定在所述第三时频资源上有所述第一数据；和/或，
    当传输所述第一数据的传输时间间隔大于等于所述第一阈值时，确定在所述第三时频资源上没有所述第一数据。
  5. 根据权利要求1所述的方法，其特征在于，所述第一数据的特征包括传输所述第一数据的子载波间隔，所述根据所述第一数据的特征确定在所述第三时频资源上是否有所述第一数据，具体包括：
    当传输所述第一数据的子载波间隔大于第二阈值时，确定在所述第三时频资源上有所述第一数据；和/或，
    当传输所述第一数据的子载波间隔小于等于所述第二阈值时，确定在所述第三时频资源上没有所述第一数据。
  6. 根据权利要求1至5任一项所述的方法，其特征在于，所述方法还包括：
    接收第三控制信息，所述第三控制信息用于指示所述通信装置在第四时频资源中接收第三数据；
    所述第三控制信息包括第一指示信息，所述第一指示信息用于指示所述通信装置在 第五时频资源上是否有所述第一数据，其中，所述第五时频资源为第六时频资源中与所述第三时频资源无重叠的时频资源，所述第六时频资源为所述第四时频资源与所述第二时频资源重叠的时频资源。
  7. 一种抢占资源进行数据传输的方法，包括：
    接收第四控制信息，所述第四控制信息用于指示通信装置在第一带宽部分BWP上接收第一数据；
    接收第一控制信息，所述第一控制信息用于指示所述通信装置在第一时频资源中接收第一数据；
    接收第二控制信息，所述第二控制信息用于指示第二时频资源中没有信息传输；
    根据所述第二控制信息与所述第一BWP的关系确定在第三时频资源上是否有所述第一数据，其中，所述第三时频资源为所述第一时频资源与所述第二时频资源重叠的时频资源。
  8. 根据权利要求7所述的方法，其特征在于，所述根据所述第二控制信息与所述第一BWP的关系确定在第三时频资源上是否有所述第一数据，具体包括：
    当所述第二控制信息属于所述第一BWP时，确定在所述第三时频资源上没有所述第一数据；和/或，
    当所述第二控制信息不属于所述第一BWP时，确定在所述第三时频资源上有所述第一数据。
  9. 一种通信装置，包括：
    收发单元，用于接收第一控制信息，所述第一控制信息用于指示所述收发单元在第一时频资源中接收第一数据；
    所述收发单元还用于接收第二控制信息，所述第二控制信息用于指示第二时频资源中没有信息传输；
    处理单元，用于根据所述第一控制信息的特征或所述第一数据的特征确定在第三时频资源上是否有所述第一数据，其中，所述第三时频资源为所述第一时频资源与所述第二时频资源重叠的时频资源。
  10. 根据权利要求9所述的通信装置，其特征在于，所述第一控制信息的特征包括第一控制信息的类型，所述处理单元具体用于：
    当所述第一控制信息的类型为第一类型时，确定在所述第三时频资源上有所述第一数据；和/或，
    当所述第一控制信息的类型不是第一类型时，确定在所述第三时频资源上没有所述第一数据。
  11. 根据权利要求9所述的通信装置，其特征在于，所述第一控制信息的特征包括所述第一控制信息的起始传输位置，所述处理单元具体用于：
    当所述第一控制信息的起始传输位置不在一个时隙的起始位置时，确定在所述第三时频资源上有所述第一数据。
  12. 根据权利要求9所述的通信装置，其特征在于，所述第一数据的特征包括传输所述第一数据的传输时间间隔，所述处理单元具体用于：
    当传输所述第一数据的传输时间间隔小于第一阈值时，确定在所述第三时频资源上 有所述第一数据；和/或，
    当传输所述第一数据的传输时间间隔大于等于所述第一阈值时，确定在所述第三时频资源上没有所述第一数据。
  13. 根据权利要求9所述的通信装置，其特征在于，所述第一数据的特征包括传输所述第一数据的子载波间隔，所述处理单元具体用于：
    当传输所述第一数据的子载波间隔大于第二阈值时，确定在所述第三时频资源上有所述第一数据；和/或，
    当传输所述第一数据的子载波间隔小于等于所述第二阈值时，确定在所述第三时频资源上没有所述第一数据。
  14. 根据权利要求9至13任一项所述的通信装置，其特征在于，所述收发单元还用于：
    接收第三控制信息，所述第三控制信息用于指示所述收发单元在第四时频资源中接收第三数据；
    所述第三控制信息包括第一指示信息，所述第一指示信息用于指示所述通信装置在第五时频资源上是否有所述第一数据，其中，所述第五时频资源为第六时频资源中与所述第三时频资源无重叠的时频资源，所述第六时频资源为所述第四时频资源与所述第二时频资源重叠的时频资源。
  15. 一种通信装置，包括：
    收发单元，用于接收第四控制信息，所述第四控制信息用于指示所述收发单元在第一带宽部分BWP上接收第一数据；
    所述收发单元还用于接收第一控制信息，所述第一控制信息用于指示所述收发单元在第一时频资源中接收第一数据；
    所述收发单元还用于接收第二控制信息，所述第二控制信息用于指示第二时频资源中没有信息传输；
    处理单元，用于根据所述第二控制信息与所述第一BWP的关系确定在第三时频资源上是否有所述第一数据，其中，所述第三时频资源为所述第一时频资源与所述第二时频资源重叠的时频资源。
  16. 根据权利要求15所述的通信装置，其特征在于，所述处理单元具体用于：
    当所述第二控制信息属于所述第一BWP时，确定在所述第三时频资源上没有所述第一数据；和/或，
    当所述第二控制信息不属于所述第一BWP时，确定在所述第三时频资源上有所述第一数据。
  17. 一种通信装置，其特征在于，包括处理器和存储器，所述存储器用于存储计算机程序或指令，所述处理器用于执行所述存储器存储的计算机程序或指令，当所述处理器执行所述存储器存储的计算机程序或指令时，所述通信装置用于完成如权利要求1至8任意一项所述的方法。
  18. 一种计算机可读存储介质，其特征在于，用于存储计算机程序或指令，当所述计算机程序或指令在计算机上运行时，使得计算机执行权利要求1至8任一项所述的方法。
  19. 一种计算机程序产品，其特征在于，当其在计算机上运行时，使得计算机执行如权利要求1至8任一项所述的方法。
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