WO2021087903A1 - Procédé et dispositif de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé et dispositif de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2021087903A1
WO2021087903A1 PCT/CN2019/116388 CN2019116388W WO2021087903A1 WO 2021087903 A1 WO2021087903 A1 WO 2021087903A1 CN 2019116388 W CN2019116388 W CN 2019116388W WO 2021087903 A1 WO2021087903 A1 WO 2021087903A1
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Prior art keywords
resource
harq process
harq
type
configuration information
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English (en)
Chinese (zh)
Inventor
卢前溪
尤心
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201980099462.4A priority Critical patent/CN114303333B/zh
Priority to PCT/CN2019/116388 priority patent/WO2021087903A1/fr
Publication of WO2021087903A1 publication Critical patent/WO2021087903A1/fr
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method and device, terminal device, and network device.
  • the fifth-generation mobile communication technology New Radio 5-Generation New Radio, 5G NR
  • 5G NR fifth-generation mobile communication technology New Radio
  • NTN non-terrestrial networks
  • HARQ hybrid Automatic Repeat reQuest
  • the embodiments of the present application provide a wireless communication method and equipment, terminal equipment, and network equipment, which can implement the HARQ process of Semi-Persistent Scheduling (SPS) resources and Configured Grant (CG) resources in the NTN system
  • SPS Semi-Persistent Scheduling
  • CG Configured Grant
  • a wireless communication method includes:
  • the first device determines a mapping pattern between the periodic resource and multiple HARQ processes according to the configuration information used to configure the periodic resource, where the configuration information includes the multiple HARQ processes reserved for the periodic resource, And the multiple HARQ processes include at least a first-type HARQ process and/or a second-type HARQ process;
  • the first device uses the first-type HARQ process once according to the mapping pattern, and repeatedly polls the second-type HARQ process.
  • a wireless communication method in a second aspect, includes:
  • the terminal device receives configuration information, where the configuration information is used to configure a periodic first resource and a second resource, the first resource corresponds to the first type of HARQ process, and the second resource corresponds to the second type of HARQ process;
  • the terminal device determines to use the first resource or the second resource.
  • a wireless communication method includes:
  • the network device sends configuration information, where the configuration information is used to configure a periodic first resource and a second resource, the first resource corresponds to the first type of HARQ process, and the second resource corresponds to the second type of HARQ process.
  • a wireless communication device configured to execute the method in the first aspect or its implementation manners.
  • the wireless communication device includes a functional module for executing the method in the foregoing first aspect or each of its implementation manners.
  • a terminal device which is used to execute the method in the second aspect or its implementation manners.
  • the terminal device includes a functional module for executing the method in the foregoing second aspect or each of its implementation manners.
  • a network device is provided, which is used to execute the method in the third aspect or its implementation manners.
  • the network device includes a functional module for executing the method in the above third aspect or each of its implementation manners.
  • a wireless communication device including a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned second aspect or each of its implementation modes.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the third aspect or its implementation manners.
  • a device is provided to implement any one of the above-mentioned first to third aspects or the method in each of its implementation manners.
  • the device includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first aspect to the third aspect or any of the implementation modes thereof method.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
  • a computer program product including computer program instructions that cause a computer to execute any one of the first to third aspects above or the method in each implementation manner thereof.
  • a computer program which, when run on a computer, causes the computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
  • the terminal device in the case that the first-type HARQ process and/or the second-type HARQ process are reserved for periodic resources, the terminal device according to the determined mapping between the periodic resource and the HARQ process The pattern uses the first-type HARQ process once, and repeatedly polls the second-type HARQ process.
  • the HARQ process design of the SPS resources and CG resources in the NTN system can be realized, which can effectively ensure the scheduling performance, and at the same time, the SPS resources and/or CG resources can be used more efficiently for data transmission.
  • the terminal device can determine whether to use the first resource or the second resource, so that the The selection of the first type of HARQ process and the second type of HARQ process can realize the HARQ process design of SPS resources and CG resources in the NTN system, which can effectively ensure the scheduling performance, and at the same time, it can use SPS resources and/or CG resources more efficiently. data transmission.
  • Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.
  • 3 to 8 are schematic diagrams of the mapping between periodic resources and HARQ processes provided according to embodiments of the present application.
  • Fig. 9 is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.
  • Fig. 10 is a schematic block diagram of a wireless communication device according to an embodiment of the present application.
  • Fig. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a network device according to an embodiment of the present application.
  • Fig. 13 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • Fig. 14 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • Fig. 15 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • New Radio, NR evolution of NR system
  • LTE LTE-based access to unlicensed spectrum
  • LTE-U Universal Mobile Telecommunication System
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
  • CA Carrier Aggregation
  • DC dual connectivity
  • SA standalone
  • the embodiment of the application does not limit the applied frequency spectrum.
  • the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 having a communication function and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.
  • terminal equipment may also be referred to as User Equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, and remote Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • the terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the public land mobile network (PLMN) network that will evolve in the future.
  • STAION, ST station
  • WLAN Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • a network device can be a device used to communicate with mobile devices.
  • the network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, or a device in WCDMA.
  • a base station (NodeB, NB) can also be an Evolutional Node B (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station in the NR network (gNB) or network equipment in the future evolved PLMN network.
  • the network equipment provides services for the cell
  • the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell may be a network equipment (for example, The cell corresponding to the base station.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the 5G NR system defines the deployment scenarios of NTN systems including satellite networks.
  • NTN generally uses satellite communication to provide communication services to ground users.
  • satellite communication Compared with terrestrial cellular network communication, satellite communication has many unique advantages. First of all, satellite communication is not restricted by the user area. For example, general terrestrial communication cannot cover the ocean, mountains, deserts and other areas where communication equipment cannot be installed or because of the sparse population. Satellites can cover a larger ground, and satellites can orbit the earth, so in theory every corner of the earth can be covered by satellite communications. Secondly, satellite communication has greater social value.
  • Satellite communication can be covered at a lower cost in remote mountainous areas, poor and backward countries or regions, so that people in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital gap with developed areas and promoting The development of these areas.
  • the satellite communication distance is long, and the communication cost has not increased significantly with the increase of the communication distance; finally, the stability of satellite communication is high, and it is not restricted by natural disasters.
  • Communication satellites are classified into Low-Earth Orbit (LEO) satellites, Medium-Earth Orbit (MEO) satellites, Geostationary Earth Orbit (GEO) satellites, and highly elliptical orbits. (High Elliptical Orbit, HEO) satellite and so on.
  • LEO Low-Earth Orbit
  • MEO Medium-Earth Orbit
  • GEO Geostationary Earth Orbit
  • HEO High Elliptical Orbit
  • LEO satellites have an altitude range of 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the maximum satellite viewing time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the requirement for the transmission power of the user terminal is not high.
  • the GEO satellite has an orbital height of 35786km and a rotation period of 24 hours around the earth.
  • the signal propagation delay of single-hop communication between users is generally 250ms.
  • NR has two levels of retransmission mechanisms: HARQ at the Media Access Control (MAC) layer and Automatic Repeat reQuest at the Radio Link Control (RLC) layer. , ARQ) mechanism.
  • the retransmission of lost or erroneous data is mainly handled by the HARQ mechanism of the MAC layer and supplemented by the retransmission function of the RLC layer.
  • the HARQ mechanism of the MAC layer can provide fast retransmission, and the ARQ mechanism of the RLC layer can provide reliable data transmission.
  • HARQ uses Stop-and-Wait Protocol to send data.
  • the stop-and-wait protocol after the sender sends a transmission block (TB), it stops and waits for confirmation. In this way, the sender will stop and wait for confirmation after each transmission, which will result in very low user throughput. Therefore, NR uses multiple parallel HARQ processes. When one HARQ process is waiting for confirmation information, the sender can use another HARQ process to continue sending data. These HARQ processes together form a HARQ entity, which combines the stop-and-wait protocol to allow continuous data transmission.
  • HARQ is divided into uplink HARQ and downlink HARQ. Uplink HARQ is for uplink data transmission, and downlink HARQ is for downlink data transmission. The two are independent of each other.
  • the terminal has its own HARQ entity corresponding to each serving cell.
  • Each HARQ entity maintains a set of parallel downlink HARQ processes and a set of parallel uplink HARQ processes.
  • Each uplink and downlink carrier supports a maximum of 16 HARQ processes.
  • the base station can indicate the maximum number of HARQ processes to the terminal through radio resource control (Radio Resource Control, RRC) signaling semi-static configuration according to the network deployment situation. If the network does not provide corresponding configuration parameters, the default number of HARQ processes in the downlink is 8, and the maximum number of HARQ processes supported by each carrier in the uplink is always 16.
  • Each HARQ process corresponds to a HARQ process identifier (Identifier, ID).
  • ID HARQ process identifier
  • BCCH uses a dedicated broadcast HARQ process.
  • the transmission of messages (message 3, Msg 3) in the random process uses HARQ ID 0.
  • each downlink HARQ process can only process 1 TB at the same time; for terminals that support downlink space division multiplexing, each downlink HARQ process can process 1 or 2 TBs at the same time. Each uplink HARQ process of the terminal processes 1 TB at the same time.
  • HARQ is divided into two types, synchronous and asynchronous in the time domain, and divided into two types, non-adaptive and adaptive in the frequency domain.
  • Both NR uplink and downlink use asynchronous adaptive HARQ mechanism.
  • Asynchronous HARQ that is, retransmission can occur at any time, and the time interval between the retransmission of the same TB and the previous transmission is not fixed.
  • Adaptive HARQ can change the frequency domain resources used for retransmission and the modulation and coding scheme (Modulation and Coding Scheme, MCS).
  • MCS Modulation and Coding Scheme
  • the downlink is called SPS resources
  • the uplink is called CG resources.
  • the network device For each SPS configuration, the network device configures a limited number of downlink HARQ processes for it, and the network device uses these downlink HARQ processes in a polling manner to perform downlink transmission on the SPS resources.
  • the network device configures a limited number of HARQ process numbers for it, and the terminal device uses these uplink HARQ processes in a polling manner to perform uplink transmission on the CG resources.
  • the terminal device groups the media access control protocol data unit (Media Access Control Protocol Data Unit, MAC PDU) After 1, MAC PDU1 is stored in HARQ ID i.
  • Media Access Control Protocol Data Unit Media Access Control Protocol Data Unit
  • configuredGrantTimer a configured grant timer for each (per) HARQ process.
  • the maintenance method of configuredGrantTimer is:
  • the terminal device If the terminal device performs uplink transmission on the resources scheduled by the Physical Downlink Control Channel (PDCCH), and the HARQ process used for the uplink transmission can be used to configure the authorized transmission, the terminal device starts or restarts the HARQ process corresponding to the configuredGrantTimer.
  • PDCCH Physical Downlink Control Channel
  • the terminal device If the terminal device performs uplink transmission on the configured authorized resource, the terminal device starts or restarts the configuredGrantTimer corresponding to the HARQ process.
  • the terminal device If the terminal device receives the PDCCH indicating type (Type) 2 CG resource activation, the terminal device stops the running configuredGrantTimer.
  • the MAC PDU stored in the HARQ process cannot be flushed.
  • the network equipment can be configured to enable the HARQ function.
  • the terminal device does not need to send HARQ feedback for the Physical Downlink Shared Channel (PDSCH) to the network device.
  • PDSCH Physical Downlink Shared Channel
  • the configuration of enabling or disabling the HARQ function can be performed based on the terminal device or the HARQ process.
  • the configuration based on the terminal device that is, the HARQ function of all HARQ processes of the configuration terminal device is in the on or off state at the same time.
  • the HARQ process-based configuration mode that is, for multiple HARQ processes of a UE, the HARQ function of some of the HARQ processes can be configured to be in the on state, and the HARQ function of the other part of the HARQ processes to be in the off state.
  • the time required to wait for retransmission scheduling is different for the HARQ process with the HARQ function disabled and the HARQ process with the HARQ function enabled, for example: for enabling HARQ
  • the waiting time for retransmission is at least 1 round trip time (RTT); for the HARQ process with the HARQ function turned off, the retransmission can be achieved through blind scheduling, so the waiting time for retransmission The time is relatively short.
  • the HARQ process reserved for SPS/CG includes both the HARQ process with the HARQ function turned on and the HARQ process with the HARQ function turned off, the time required for them to complete a TB transmission (including initial transmission and retransmission) is different. .
  • the method of using each HARQ process obviously does not take into account the difference of the HARQ process in the two states.
  • the HARQ process with the HARQ function enabled in order to avoid the use of the same HARQ process data later
  • the downlink transmission is not performed on the SPS that uses the same HARQ process later, so as to give the previous TB Reserve enough time for retransmission; for uplink, you can avoid this problem by configuring a longer configured grant timer (configuredGrantTimer). But the price of doing so is that it will cause a lot of waste of resources.
  • FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 2, the method 200 may include some or all of the following contents:
  • the first device determines a mapping pattern between the periodic resource and multiple HARQ processes according to the configuration information used to configure the periodic resource, where the configuration information includes the multiple HARQ reserved for the periodic resource.
  • Processes, and the multiple HARQ processes include at least a first-type HARQ process and/or a second-type HARQ process;
  • the first device uses the first-type HARQ process once according to the mapping pattern, and repeatedly polls the second-type HARQ process.
  • the method 200 is applied to an NTN network.
  • the method 200 can also be applied to other networks, which is not limited in this application.
  • the first device may be a terminal device or a network device.
  • the first device needs to obtain the configuration information.
  • the first device receives the configuration information from the network device.
  • the first device may send the configuration information to the terminal device.
  • the multiple HARQ processes may include one or more HARQ processes of the first-type HARQ process.
  • the multiple HARQ processes may include one or more HARQ processes of the second-type HARQ process.
  • multiple HARQ processes may also include other types of HARQ processes, which is not limited in this application.
  • the first type of HARQ process is an HARQ process with the HARQ function in an on state
  • the second type of HARQ process is an HARQ process with the HARQ function in an off state.
  • the HARQ process IDs of some or all of the HARQ processes in the first-type HARQ process are continuous, or the HARQ process IDs in the first-type HARQ process are not continuous.
  • HARQ ID 0, HARQ ID 1, and HARQ ID 2 are the first type of HARQ processes.
  • HARQ ID 0 and HARQ ID 3 It is the first type of HARQ process.
  • HARQ ID 0, HARQ ID 1, and HARQ ID 3 are the first type of HARQ process.
  • the HARQ process IDs of some or all of the HARQ processes in the second type HARQ process are continuous, or the HARQ process IDs in the second type HARQ process are not continuous.
  • HARQ ID 1, HARQ ID 2, and HARQ ID 3 are the second type of HARQ processes, and for example, HARQ ID 0 and HARQ ID 3 It is the second type of HARQ process.
  • HARQ ID 0, HARQ ID 1, and HARQ ID 3 are the second type of HARQ process.
  • the configuration information further includes the period of the periodic resource and a pre-configured scheduling radio network temporary identity (Configured Scheduling Radio Network Temporary Identity, CS-RNTI).
  • a pre-configured scheduling radio network temporary identity Configured Scheduling Radio Network Temporary Identity, CS-RNTI.
  • the configuration information is specifically used to configure at least one bandwidth part (Band Width Part, BWP) for each serving cell of the terminal device, and configure the periodic resource for part or all of the BWPs in the at least one BWP.
  • BWP Band Width Part
  • the configuration information is carried in radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the periodic resource is an SPS resource
  • the HARQ process reserved for the periodic resource is a downlink HARQ process
  • the first device is a network device.
  • the periodic resource is a CG resource
  • the HARQ process reserved for the periodic resource is an uplink HARQ process
  • the first device is a terminal device.
  • the periodic resource may also be some other periodic resources, which is not limited in this application.
  • step S220 may specifically be:
  • the first device Starting from the first periodic resource, the first device first uses the first-type HARQ process in turn, and then repeatedly polls the second-type HARQ process.
  • HARQ ID 0, HARQ ID 1, and HARQ ID 2 are the first type of HARQ processes
  • HARQ ID 3 is the second type of HARQ process
  • the first device uses HARQ ID 0, HARQ ID 1, HARQ ID 2, HARQ ID 3, HARQ ID 3, HARQ ID 3, HARQ ID 3, that is, repeated HARQ polling 4 times ID 3.
  • step S220 may specifically be:
  • the first device Starting from the first periodic resource, the first device alternately uses the first-type HARQ process and the second-type HARQ process.
  • HARQ ID 0, HARQ ID 1, and HARQ ID 2 are the first type of HARQ processes
  • HARQ ID 3 is the second type of HARQ process
  • the first device first uses HARQ ID 0, HARQ ID 3, HARQ ID 3, HARQ ID 1, HARQ ID 3, HARQ ID 3, HARQ ID 2, HARQ ID 3, HARQ ID 3. That is, the HARQ ID is repeatedly polled 6 times.
  • a timer may be used to control the number of repeated polls of the second-type HARQ process, or a threshold may be used to control the number of repeated polls of the second-type HARQ process.
  • the first device when the periodic resource is associated with HARQ process 0, the first device starts or restarts the first timer, and when the first timer times out, the first device stops polling the first timer.
  • the second type of HARQ process where the first timer is used to limit the minimum time interval during which the same HARQ process with the HARQ function enabled is used for the periodic resource transmission.
  • the above-mentioned first periodic resource is the first resource when the first timer is in a closed state, or the above-mentioned first periodic resource is the first resource after the first timer expires.
  • the initial state of the first timer is the off state.
  • the duration of the first timer is determined according to the following parameters:
  • the RTT of the signal transmission between the terminal equipment and the network equipment the maximum transmission times of MAC TB, and the network scheduling delay.
  • the duration of the first timer may be determined according to the following formula 1.
  • T is the duration of the first timer
  • R is the RTT of signal transmission between the terminal device and the network device
  • N is the maximum number of transmissions of MAC TB
  • D is the network scheduling delay.
  • the first timer is configured through the configuration information, or the first timer is preconfigured, or the first timer is preconfigured or instructed by the network device.
  • the first device stops polling the second-type HARQ process.
  • the first threshold is configured through the configuration information, or the first threshold is pre-configured, or the first threshold is pre-configured or instructed by the network device.
  • the first device repeatedly uses the mapping pattern to transmit data on the periodic resource.
  • the terminal device when the first-type HARQ process and/or the second-type HARQ process are reserved for the periodic resource, the terminal device according to the determined mapping between the periodic resource and the HARQ process The pattern uses the first-type HARQ process once, and repeatedly polls the second-type HARQ process.
  • the HARQ process design of the SPS resources and CG resources in the NTN system can be realized, which can effectively ensure the scheduling performance, and at the same time, the SPS resources and/or CG resources can be used more efficiently for data transmission.
  • the wireless communication method 200 of the embodiment of the present application will be described in detail below through specific embodiments.
  • the terminal device receives the SPS configuration information configured by the network device through RRC signaling, including the period of the SPS resource, the number of downlink HARQ processes reserved for the SPS resource is 4, and the HARQ function of HARQ ID 0 ⁇ 2 is enabled , The HARQ function of HARQ ID 3 is off.
  • the network device is also configured with a first timer for controlling the number of repeated polling times of the downlink HARQ process (HARQ ID 3) with the HARQ function in the off state.
  • the terminal device starts the first timer on the first SPS resource according to the SPS configuration information, and uses HARQ ID 0, HARQ ID in sequence starting from the first SPS resource. 1.
  • HARQ ID 2 and then reuse HARQ ID 3 until the first timer expires.
  • the terminal device restarts the first timer at the first SPS resource after the first timer expires, and uses HARQ ID 0, HARQ ID 1, HARQ ID in sequence starting from the first SPS resource 2. Then use HARQ ID 3 repeatedly until the first timer expires. And so on.
  • the terminal device receives the SPS configuration information configured by the network device through RRC signaling, including the period of the SPS resource, the number of downlink HARQ processes reserved for the SPS resource is 4, and the HARQ function of HARQ ID 0 ⁇ 2 is enabled , The HARQ function of HARQ ID 3 is off.
  • the network equipment is also configured with 4 repeated polling times for the downlink HARQ process with the HARQ function disabled.
  • the terminal device determines the mapping pattern between the SPS resource and the downlink HARQ process according to the SPS configuration information, and the terminal device starts from the first SPS according to the determined mapping pattern.
  • Resources start using HARQ ID 0, HARQ ID 1, HARQ ID 2, and then use HARQ ID 3 repeatedly 4 times.
  • the terminal device reuses the determined mapping pattern.
  • the terminal device receives the SPS configuration information configured by the network device through RRC signaling, including the period of the SPS resource, the number of downlink HARQ processes reserved for the SPS resource is 4, and the HARQ functions of HARQ ID 0 ⁇ 3 are all enabled status.
  • the terminal device determines the mapping pattern between the SPS resource and the downlink HARQ process according to the SPS configuration information, and the terminal device selects the mapping pattern from the first SPS according to the determined mapping pattern.
  • Resources begin to use HARQ ID 0, HARQ ID 1, HARQ ID 2, and HARQ ID 3.
  • the terminal device reuses the determined mapping pattern.
  • the terminal device receives the CG configuration information configured by the network device through RRC signaling, including the period of the CG resource, the number of uplink HARQ processes reserved for the CG resource is 4, and the HARQ function of HARQ ID 0 ⁇ 2 is in the on state , The HARQ function of HARQ ID 3 is off.
  • the network device is also configured with a second timer for controlling the number of repeated polling times of the uplink HARQ process (HARQ ID 3) with the HARQ function in the off state.
  • the terminal device starts the second timer on the first CG resource according to the CG configuration information, and uses HARQ ID 0, HARQ ID in sequence starting from the first CG resource. 1. HARQ ID 2, and then reuse HARQ ID 3 until the second timer expires.
  • the terminal device restarts the second timer at the first CG resource after the second timer expires, and uses HARQ ID 0, HARQ ID 1, HARQ ID in sequence starting from the first CG resource 2. Then use HARQ ID 3 repeatedly until the second timer expires. And so on.
  • the terminal device receives the CG configuration information configured by the network device through RRC signaling, including the period of the CG resource, the number of uplink HARQ processes reserved for the CG resource is 4, and the HARQ function of HARQ ID 0 ⁇ 2 is in the on state , The HARQ function of HARQ ID 3 is off.
  • the network equipment is also configured with 4 repeated polling times for the uplink HARQ process with the HARQ function disabled.
  • the terminal device determines the mapping pattern between the CG resource and the uplink HARQ process according to the CG configuration information, and the terminal device sequentially starts from the first CG resource according to the determined mapping pattern.
  • the terminal device reuses the determined mapping pattern.
  • the terminal device receives the CG configuration information configured by the network device through RRC signaling, including the period of the CG resource, the number of uplink HARQ processes reserved for the CG resource is 4, and the HARQ functions of HARQ ID 0 to 3 are all disabled status.
  • the network device is also configured with the number of repeated polls of the uplink HARQ process with the HARQ function disabled as 3.
  • the terminal device determines the mapping pattern between the CG resource and the uplink HARQ process according to the CG configuration information, and the terminal device sequentially starts from the first CG resource according to the determined mapping pattern.
  • FIG. 9 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. As shown in FIG. 9, the method 300 may include some or all of the following contents:
  • the network device sends configuration information to the terminal device, where the configuration information is used to configure a periodic first resource and a second resource, the first resource corresponds to the first type of HARQ process, and the second resource corresponds to the second type of HARQ process;
  • S320 The terminal device receives the configuration information
  • the terminal device determines to use the first resource or the second resource.
  • the method 300 is applied to an NTN network.
  • the method 300 can also be applied to other networks, which is not limited in this application.
  • the first type of HARQ process is an HARQ process with the HARQ function in an on state
  • the second type of HARQ process is an HARQ process with the HARQ function in an off state.
  • the period of the first resource is smaller than the period of the second resource.
  • the terminal device receives first indication information sent by the network device, where the first indication information is used to indicate that the first resource conflicts with the second resource.
  • the first resource or the second resource is used to indicate that the first resource conflicts with the second resource.
  • the terminal device may determine whether to use the first resource or the second resource according to the first indication information.
  • the terminal device determines to use the first resource or the second resource according to pre-configuration information.
  • the pre-configuration information may be a default configuration, that is, the terminal device may determine whether to use the first resource or the second resource based on the default configuration.
  • the first resource and the second resource are SPS resources
  • the first-type HARQ process and the second-type HARQ process are downlink HARQ processes.
  • the first resource and the second resource are CG resources
  • the first-type HARQ process and the second-type HARQ process are uplink HARQ processes.
  • the configuration information further includes the period of the first resource, the period of the second resource, and the CS-RNTI.
  • the configuration information is specifically used to configure at least one BWP for each serving cell of the terminal device, and configure the first resource and the second resource for some or all of the BWPs in the at least one BWP.
  • the configuration information is carried in RRC signaling.
  • the terminal device in the case that the periodic first resource conflicts with the periodic second resource, can determine whether to use the first resource or the second resource, so that the first type of HARQ process can be implemented
  • the selection of the second type of HARQ process can realize the HARQ process design of the SPS resources and CG resources in the NTN system, which can effectively ensure the scheduling performance, and at the same time, the SPS resources and/or CG resources can be used more efficiently for data transmission.
  • FIG. 10 shows a schematic block diagram of a wireless communication device 400 according to an embodiment of the present application.
  • the wireless communication device 400 includes:
  • the processing unit 410 is configured to determine a mapping pattern between the periodic resource and multiple HARQ processes according to the configuration information used to configure the periodic resource, where the configuration information includes the multiple reserved for the periodic resource HARQ process, and the multiple HARQ processes include at least a first-type HARQ process and/or a second-type HARQ process;
  • the processing unit 410 is further configured to use the first-type HARQ process once according to the mapping pattern, and repeatedly poll the second-type HARQ process.
  • the first type of HARQ process is an HARQ process in which the HARQ function is in an on state
  • the second type of HARQ process is an HARQ process in which the HARQ function is in an off state.
  • processing unit 410 is specifically configured to:
  • the first type of HARQ process is used sequentially, and then the second type of HARQ process is polled repeatedly.
  • processing unit 410 is specifically configured to:
  • the first type of HARQ process and the second type of HARQ process are used alternately.
  • the first periodic resource is the first resource when the first timer is turned off, or the first periodic resource is the first resource after the first timer expires, where:
  • the first timer is used to limit the minimum time interval during which the same HARQ process with the HARQ function enabled is used for the periodic resource transmission.
  • the processing unit 410 is further configured to start or restart the first timer, and when the first timer expires, the processing unit 410 is further configured to stop polling
  • the first timer is used to limit the minimum time interval during which the same HARQ process with the HARQ function enabled is used for the periodic resource transmission.
  • the initial state of the first timer is a closed state.
  • the duration of the first timer is determined according to the following parameters:
  • the RTT of the signal transmission between the terminal equipment and the network equipment the maximum transmission times of MAC TB, and the network scheduling delay.
  • the first timer is configured through the configuration information, or the first timer is preconfigured, or the first timer is preconfigured or instructed by the network device.
  • the processing unit 410 is further configured to stop polling the second-type HARQ process in the case that the number of repeated polling of the second-type HARQ process is greater than or equal to the first threshold.
  • the first threshold is configured through the configuration information, or the first threshold is preconfigured, or the first threshold is preconfigured or instructed by the network device.
  • the device 400 further includes:
  • the communication unit 420 is configured to repeatedly use the mapping pattern to transmit data on the periodic resource.
  • the periodic resource is an SPS resource
  • the HARQ process reserved for the periodic resource is a downlink HARQ process.
  • the device 400 is a network device.
  • the periodic resource is a CG resource
  • the HARQ process reserved for the periodic resource is an uplink HARQ process.
  • the device 400 is a terminal device.
  • the HARQ process identification IDs of part or all of the HARQ processes in the first-type HARQ process are continuous, or the HARQ process IDs in the first-type HARQ process are not continuous.
  • the HARQ process IDs of part or all of the HARQ processes in the second type HARQ process are continuous, or the HARQ process IDs in the second type HARQ process are not continuous.
  • the configuration information further includes the period of the periodic resource and the CS-RNTI.
  • the configuration information is specifically used to configure at least one BWP for each serving cell of the terminal device, and configure the periodic resource for some or all of the BWPs in the at least one BWP.
  • the configuration information is carried in RRC signaling.
  • the wireless communication device 400 may correspond to the first device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the wireless communication device 400 are respectively intended to implement FIG. 2
  • the corresponding process of the first device in the method 200 shown is, for brevity, it will not be repeated here.
  • FIG. 11 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal device 500 includes:
  • the communication unit 510 is configured to receive configuration information, where the configuration information is used to configure a periodic first resource and a second resource, the first resource corresponds to the first type of HARQ process, and the second resource corresponds to the second type of HARQ process ;
  • the processing unit 520 is configured to determine to use the first resource or the second resource when the first resource conflicts with the second resource.
  • the first type of HARQ process is an HARQ process in which the HARQ function is in an on state
  • the second type of HARQ process is an HARQ process in which the HARQ function is in an off state.
  • the period of the first resource is smaller than the period of the second resource.
  • the communication unit 510 is further configured to receive first indication information, where the first indication information is used to indicate to use the first resource or the second resource when the first resource conflicts with the second resource .
  • processing unit 520 is specifically configured to:
  • the pre-configuration information it is determined to use the first resource or the second resource.
  • the first resource and the second resource are SPS resources
  • the first-type HARQ process and the second-type HARQ process are downlink HARQ processes.
  • the first resource and the second resource are CG resources
  • the first-type HARQ process and the second-type HARQ process are uplink HARQ processes.
  • the configuration information further includes the period of the first resource, the period of the second resource, and the CS-RNTI.
  • the configuration information is specifically used to configure at least one BWP for each serving cell of the terminal device, and configure the first resource and the second resource for some or all of the BWPs in the at least one BWP.
  • the configuration information is carried in RRC signaling.
  • terminal device 500 may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the terminal device 500 are to implement the method shown in FIG. 9 respectively.
  • the corresponding process of the terminal equipment in 300 will not be repeated here.
  • Fig. 12 shows a schematic block diagram of a network device 600 according to an embodiment of the present application. As shown in Fig. 12, the network device 600 includes:
  • the communication unit 610 is configured to send configuration information, where the configuration information is used to configure a periodic first resource and a second resource, the first resource corresponds to the first type of HARQ process, and the second resource corresponds to the second type of HARQ process .
  • the first type of HARQ process is an HARQ process in which the HARQ function is in an on state
  • the second type of HARQ process is an HARQ process in which the HARQ function is in an off state.
  • the period of the first resource is smaller than the period of the second resource.
  • the communication unit 610 is further configured to send first indication information, where the first indication information is used to indicate that the first resource or the second resource is used when the first resource conflicts with the second resource .
  • the first resource and the second resource are SPS resources
  • the first-type HARQ process and the second-type HARQ process are downlink HARQ processes.
  • the first resource and the second resource are CG resources
  • the first-type HARQ process and the second-type HARQ process are uplink HARQ processes.
  • the configuration information further includes the period of the first resource, the period of the second resource, and the CS-RNTI.
  • the configuration information is specifically used to configure at least one BWP for each serving cell of the terminal device, and configure the first resource and the second resource for some or all of the BWPs in the at least one BWP.
  • the configuration information is carried in RRC signaling.
  • the network device 600 may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 600 are to implement the method shown in FIG. 9 respectively.
  • the corresponding process of the network equipment in 300 will not be repeated here.
  • FIG. 13 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application.
  • the communication device 700 shown in FIG. 13 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the communication device 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 700 may specifically be a network device or a base station in an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application.
  • the communication device 700 may implement the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application.
  • This will not be repeated here.
  • the communication device 700 may specifically be a mobile terminal/terminal device of an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • I won’t repeat it here.
  • Fig. 14 is a schematic structural diagram of a device according to an embodiment of the present application.
  • the apparatus 800 shown in FIG. 14 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the device 800 may further include a memory 820.
  • the processor 810 may call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.
  • the memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.
  • the device 800 may further include an input interface 830.
  • the processor 810 can control the input interface 830 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the device 800 may further include an output interface 840.
  • the processor 810 can control the output interface 840 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the device can be applied to the network equipment or the base station in the embodiments of the present application, and the device can implement the corresponding procedures implemented by the network equipment or the base station in the various methods of the embodiments of the present application.
  • the device can implement the corresponding procedures implemented by the network equipment or the base station in the various methods of the embodiments of the present application.
  • it will not be omitted here. Go into details.
  • the device can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the device can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 15 is a schematic block diagram of a communication system 900 according to an embodiment of the present application.
  • the communication system 900 includes a terminal device 910 and a network device 920.
  • the terminal device 910 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 920 can be used to implement the corresponding function implemented by the network device or the base station in the above method. Go into details again.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device or base station in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application, in order to It's concise, so I won't repeat it here.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I won’t repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device or base station in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device or the base station in each method of the embodiment of the present application, for the sake of brevity , I won’t repeat it here.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device or base station in the embodiment of the present application.
  • the computer program runs on the computer, the computer can execute the corresponding implementation of the network device or the base station in each method of the embodiment of the present application. For the sake of brevity, the process will not be repeated here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

Selon des modes de réalisation, la présente invention concerne un procédé et un dispositif de communication sans fil, un dispositif terminal, et un dispositif de réseau, capables de mettre en œuvre la conception de processus de HARQ de ressources de SPS et de ressources de CG dans des systèmes NTN, ce qui assure efficacement la performance d'ordonnancement, et met en œuvre la transmission de données en utilisant plus efficacement les ressources de SPS et/ou les ressources de CG. Le procédé de communication sans fil comprend les étapes suivantes : un premier dispositif détermine, selon des informations de configuration pour configurer une ressource périodique, un motif de mappage entre la ressource périodique et une pluralité de processus de HARQ, les informations de configuration comprenant la pluralité de processus de HARQ réservés à la ressource périodique, et la pluralité de processus de HARQ comprenant au moins un premier type de processus de HARQ et/ou un deuxième type de processus de HARQ ; le premier dispositif, selon le motif de mappage, utilise le premier type de processus de HARQ une fois, et effectue une invitation à émettre répétée sur le deuxième type de processus de HARQ.
PCT/CN2019/116388 2019-11-07 2019-11-07 Procédé et dispositif de communication sans fil, dispositif terminal et dispositif de réseau Ceased WO2021087903A1 (fr)

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