WO2024092702A1 - Procédé de communication, équipement terminal et dispositif réseau - Google Patents

Procédé de communication, équipement terminal et dispositif réseau Download PDF

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Publication number
WO2024092702A1
WO2024092702A1 PCT/CN2022/129805 CN2022129805W WO2024092702A1 WO 2024092702 A1 WO2024092702 A1 WO 2024092702A1 CN 2022129805 W CN2022129805 W CN 2022129805W WO 2024092702 A1 WO2024092702 A1 WO 2024092702A1
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information field
physical channel
bit
dci format
physical
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PCT/CN2022/129805
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English (en)
Chinese (zh)
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林亚男
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Oppo广东移动通信有限公司
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Priority to PCT/CN2022/129805 priority Critical patent/WO2024092702A1/fr
Publication of WO2024092702A1 publication Critical patent/WO2024092702A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Definitions

  • the present application relates to the field of communication technology, and more specifically, to a communication method, a terminal device and a network device.
  • the downlink control information (DCI) format can be used to schedule the first physical channel.
  • the DCI format can be used to activate the second physical channel.
  • the first information field in the DCI format can be used to indicate the physical resource occupancy of the first physical channel or the second physical channel.
  • the physical resource occupation of the second physical channel can be more diversified, that is, the alternative physical resources can be more diverse. Therefore, in some cases, the physical resources occupied by the second physical channel will require more bits to indicate compared with the first physical channel. If the number of bits in the first information field is increased, some bits in the first information field will not be used when scheduling the first physical channel, which will cause redundancy in the DCI format and reduce transmission efficiency.
  • the present application provides a communication method, a terminal device and a network device.
  • the following introduces various aspects involved in the present application.
  • a communication method including: a terminal device receives a DCI format; wherein the DCI format includes a first information field and a second information field, and when the DCI format is used to schedule a first physical channel, the first information field is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate a second physical channel, the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel.
  • a communication method including: a network device sends a DCI format; wherein the DCI format includes a first information field and a second information field, and when the DCI format is used to schedule a first physical channel, the first information field is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate a second physical channel, the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel.
  • a terminal device comprising: a receiving unit for receiving a DCI format; wherein the DCI format comprises a first information field and a second information field, and when the DCI format is used to schedule a first physical channel, the first information field is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate a second physical channel, the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel.
  • a network device including: a sending unit, used to send downlink control information DCI format; wherein the DCI format includes a first information field and a second information field, and when the DCI format is used to schedule a first physical channel, the first information field is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate a second physical channel, the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel.
  • a terminal device comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.
  • a network device comprising a processor and a memory, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.
  • an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device and/or network device.
  • the system may also include other devices that interact with the terminal device or network device in the solution provided by the embodiment of the present application.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a terminal to execute part or all of the steps in the methods of the above aspects.
  • an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a terminal to execute some or all of the steps in the above-mentioned various aspects of the method.
  • the computer program product can be a software installation package.
  • an embodiment of the present application provides a chip, which includes a memory and a processor.
  • the processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.
  • the DCI format In the case where the DCI format is used to schedule the first physical channel, the number of bits used in the DCI format to indicate the occupancy of the physical resources of the first physical channel is relatively small. Therefore, there may be no redundant bits or relatively few redundant bits in the DCI format for scheduling the first physical channel, thereby avoiding the problem of reduced transmission efficiency. In addition, in the case where the DCI format activates the second physical channel, the number of bits used in the DCI format to indicate the occupancy of the physical resources of the second physical channel is relatively large. Therefore, the DCI format can activate the second physical channel with high flexibility.
  • FIG1 is a schematic diagram of a wireless communication system used in an embodiment of the present application.
  • FIG2 is a schematic flowchart of a communication method provided in an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.
  • FIG4 is a schematic structural diagram of a network device provided in an embodiment of the present application.
  • FIG5 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
  • FIG1 is a wireless communication system 100 used in an embodiment of the present application.
  • the wireless communication system 100 may include a network device 110 and a terminal device 120.
  • the network device 110 may be a device that communicates with the terminal device 120.
  • the network device 110 may provide communication coverage for a specific geographical area, and may communicate with the terminal device 120 located in the coverage area.
  • FIG1 exemplarily shows a network device and two terminals.
  • the wireless communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
  • the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) system or new radio (new radio, NR), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), etc.
  • 5G fifth generation
  • NR new radio
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD time division duplex
  • future communication systems such as the sixth generation mobile communication system, satellite communication system, etc.
  • the terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • the terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.
  • the UE can be used to act as a base station.
  • the UE can act as a scheduling entity, which provides sidelink signals between UEs in vehicle-to-everything (V2X) or device to device (D2D), etc.
  • V2X vehicle-to-everything
  • D2D device to device
  • a cellular phone and a car communicate with each other using sidelink signals.
  • Cellular phones and smart home devices communicate with each other without relaying the communication signal through a base station.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station.
  • the network device in the embodiment of the present application may refer to a wireless access network (RAN) node (or device) that connects a terminal device to a wireless network.
  • RAN wireless access network
  • Base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master eNB (MeNB), secondary eNB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc.
  • NodeB evolved NodeB
  • gNB next generation NodeB
  • TRP transmitting and receiving point
  • TP transmitting point
  • MeNB master eNB
  • SeNB secondary eNB
  • MSR multi-standard radio
  • the base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • the base station may also refer to a communication module, a modem or a chip used to be arranged in the aforementioned device or apparatus.
  • the base station may also be a mobile switching center and a device that performs the base station function in D2D, V2X, machine-to-machine (M2M) communications, a network-side device in a 6G network, a device that performs the base station function in a future communication system, and the like.
  • the base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station.
  • a helicopter or drone can be configured to act as a device that communicates with another base station.
  • the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU.
  • the gNB may also include an AAU.
  • the network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air.
  • the embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.
  • Physical resources need to be allocated for some physical channels. These physical channels may be, for example, physical uplink shared channel (PUSCH), physical downlink shared channel (PDSCH), etc. Physical resources may include, for example, time domain resources and/or frequency domain resources. The following takes the allocation of time domain resources of PUSCH as an example for explanation.
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • Physical resources may include, for example, time domain resources and/or frequency domain resources. The following takes the allocation of time domain resources of PUSCH as an example for explanation.
  • the resource allocation of PUSCH is related to the scheduling mode of PUSCH.
  • the scheduling mode of PUSCH may include dynamic scheduling and semi-persistent scheduling.
  • the time domain resource allocation of PUSCH under these two scheduling modes is described below.
  • the time domain resource assignment (TDRA) information field in the DCI format (format 0_0/0_1/0_2) can be used to indicate the time domain resources occupied by the PUSCH.
  • the terminal device can receive a DCI format and read the TDRA information field therein to determine the time domain resources occupied by the dynamically scheduled PUSCH.
  • the value m of the TDRA information field may correspond to the m+1th row in a preconfigured allocation table.
  • the row includes the information of the time slot offset K 2 of the scheduled PUSCH, the information of the starting symbol S in the time slot, and the information of the time domain length L.
  • the time domain resources occupied by the scheduled PUSCH can be determined according to K 2 , S and L.
  • SLIV start and length indicator
  • a DCI format can schedule only one PUSCH transmission in a single-slot. That is, each row in the preconfigured resource allocation table can be used to determine the time domain information of a PUSCH transmitted in a time slot.
  • the preconfigured resource allocation table includes up to 16 rows. Therefore, the TDRA information field in the DCI can occupy up to 4 bits.
  • one DCI format can schedule PUSCH transmission in multiple time slots.
  • each row extension includes multiple groups of K 2 and SLIV information, and each group of K 2 and SLIV determines the PUSCH transmitted in a time slot.
  • One DCI can schedule transmission in up to 8 time slots at the same time.
  • the preconfigured resource allocation table includes up to 64 rows. Therefore, the TDRA information field in the DCI can occupy 5 or 6 bits.
  • Semi-persistent scheduling can also be called configured grant Type 2 PUSCH transmission.
  • radio resource control (RRC) signaling can pre-configure some transmission parameters.
  • the DCI format can be used to activate PUSCH.
  • a network device can configure one or more configured grants (CGs) through RRC signaling.
  • the DCI format can be used to activate one of one or more CGs. After the CG is activated, the terminal device can periodically send PUSCH according to the configuration information of the CG.
  • Table 1 shows the special information field settings in the DCI signaling for activating a CG transmission when the terminal device is configured with only one set of CG.
  • Table 2 shows the special information field settings in the DCI signaling for activating a CG transmission when the terminal device is configured with multiple sets of CGs.
  • the DCI format used to activate PUSCH needs to meet the following conditions: 1) the cyclic redundancy check (CRC) of a corresponding DCI format is scrambled by the configured scheduling-radio network temporary identity (CS-RNTI) provided by the cs-RNTI field or the group-configured scheduling-radio network temporary identifier (G-CS-RNTI) provided by the g-cs-RNTI field.
  • CS-RNTI configured scheduling-radio network temporary identity
  • G-CS-RNTI group-configured scheduling-radio network temporary identifier
  • the following table contains the following information: 1) the DCI format for the enabled transport block is set to '0'; 2) the DCI format for the enabled transport block is set to '0'; 3) the DFI flag field, if present, is set to 0.
  • the time domain resource assignment field in the DCI format indicates a row with single SLIV; 5) if the DCI format verification is for scheduling activation and the PDSCH-to-HARQ_feedback timing indication information field exists in the DCI format, the PDSCH-to-HARQ_feedback timing indication information field will not be removed from the dl-DataToUL-A
  • the CK-r16 field provides an inapplicable value (if validation is for scheduling activation and if the PDSCH-to-HARQ_feedback timing indicator field in the DCI format is present, the PDSCH-to-HARQ_feedback timing indicator field does not provide an inapplicable value from dl-DataToUL-ACK-r16).
  • condition 3 the DCI format for activating PUSCH needs to meet that in semi-persistent scheduling, only one DCI is supported to schedule the transmission of PUSCH in one time slot.
  • XR Extended Reality
  • CG cloud game
  • the services studied in this project include augmented reality (AR), virtual reality (VR) and CG related to XR.
  • AR augmented reality
  • VR virtual reality
  • CG CG related to XR.
  • One of the main services of XR/CG is video streaming service, and its arrival rate (measured in fps, fps, i.e. frame per second) can be 30fps, 60fps, 90fps, 120fps, then the corresponding video stream period is ⁇ 33.33ms, 16.67ms, 11.11ms, 8.33ms ⁇ .
  • XR Another feature of XR is the large amount of data transmitted in a single time. Taking uplink AR/VR as an example, its data rate is 10Mbps and the average size of a data packet is 20833bytes. In actual communication systems, it is necessary to occupy resources in multiple time slots to transmit such a data packet. Therefore, the R18XR study proposed to enhance CG transmission, that is, there can be multiple PUSCH transmissions in one cycle.
  • One way to implement this is to configure a set of CGs with time domain resources for multiple PUSCH transmission occasions. For example, a set of CGs can be configured with time domain resources for multiple PUSCH transmission time slots.
  • one possible implementation method is to use the multi-slot TDRA information field in the DCI signaling for CG activation to configure multiple PUSCH transmission opportunities for a set of CG.
  • this may cause a waste of DCI resources.
  • DCI is widely used in dynamic scheduling, and the probability of CG activation is very low.
  • the TDRA information field only requires a maximum of 4 bits.
  • one way is to increase the number of TDRA bits, which will increase the redundancy of DCI in the system and reduce transmission efficiency.
  • the number of rows that can be indicated by the multi-slot TDRA information field can be compressed, but this will also reduce the flexibility of CG allocation.
  • the physical channel that indicates the physical resource occupancy through the DCI format also has the above-mentioned PUSCH problem.
  • the DCI format can be used to schedule the first physical channel.
  • the DCI format can be used to activate the second physical channel.
  • the first information field in the DCI format can be used to indicate the physical resource occupancy of the first physical channel or the second physical channel.
  • the situation in which the second physical channel occupies physical resources can be more diverse, that is, the alternative physical resources can be more diverse. Therefore, in some cases (for example, to achieve a certain flexibility), the physical resources occupied by the second physical channel will require more bits to indicate compared with the first physical channel. If the number of bits in the first information field is increased, some bits in the first information field will not be used when scheduling the first physical channel, which will cause redundancy in the DCI format, thereby reducing transmission efficiency.
  • FIG2 is a schematic flow chart of a communication method provided by an embodiment of the present application to solve the above problem.
  • the method shown in FIG2 can be implemented by a terminal device and a network device.
  • the method shown in FIG2 can include step S210.
  • Step S210 The terminal device receives the DCI format.
  • the network device sends the DCI format.
  • step S110 may also be the terminal device receiving the DCI, or the network device sending the DCI.
  • the DCI format may include a first information field and a second information field.
  • the length of the first information field may be N bits, and the length of the second information field may be M bits. Wherein N and M are both positive integers.
  • the N-bit indication result is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate the second physical channel, the N-bit and M-bit indication results are used to indicate the physical resources occupied by the second physical channel.
  • the physical resources occupied by the first physical channel can be indicated only by the first information field, and the physical resources occupied by the second physical channel can be indicated jointly by the first information field and the second information field. Therefore, compared with the case where the DCI format is used to schedule the first physical channel, when the DCI format is used to activate the second physical channel, the number of bits that can be used to indicate the physical resources occupied by the physical channel in the DCI format is more.
  • the first information field can be used to indicate that the physical resources occupied by the first physical channel are one of a maximum of 2 N candidate physical resources.
  • the second information field can be used to indicate that the physical resources occupied by the second physical channel are one of a maximum of 2 N+M candidate physical resources.
  • the DCI format is used to indicate the physical resources occupied by the first physical channel
  • the number of bits used to indicate the physical resources is smaller, so the transmission efficiency of the DCI format scheduling the first physical channel can be improved.
  • the number of bits used to indicate the physical resources is larger, so the present application can make the DCI format activate the second physical channel with higher flexibility.
  • the first information field may include a TDRA information field.
  • the N-bit TDRA information field can indicate the time domain resource occupancy of the first physical channel.
  • the N-bit TDRA information field and the M-bit second information field can be combined to indicate the time domain resource occupancy of the second physical channel. In this embodiment, it is not necessary to expand the number of bits of the TDRA information field to achieve the DCI format indicating the time domain resources occupied by the second physical channel in more alternative time domain resources.
  • the first information field may include other information fields in the DCI format.
  • the first information field may include a frequency domain resource assignment (FDRA) information field.
  • FDRA frequency domain resource assignment
  • the indication result of the N-bit FDRA information field may be used to indicate the time domain resources occupied by the first physical channel
  • the indication results of the N-bit and M-bit may be used to indicate the time domain resources occupied by the second physical channel.
  • the second information field may be an existing information field in the DCI format.
  • the unused information field in the DCI format may belong to the second information field.
  • the second information field may include an RV information field and/or a HARQ process number information field.
  • the RV information field and the HARQ process number information field in the DCI format are not used.
  • the second information field may include at least one of the RV information field and the HARQ process number information field.
  • the second information field may include the RV information field.
  • the present application utilizes the unused information fields in the DCI format to indicate the physical resources occupied by the second physical channel. Therefore, the present application can fully utilize the existing information fields in the DCI format and avoid redundancy caused by adding or expanding the information fields in the DCI format.
  • the first physical channel may be a dynamically scheduled physical channel
  • the second physical channel may be a semi-persistently scheduled physical channel.
  • the first physical channel may be a dynamically scheduled PUSCH
  • the second physical channel may be a semi-persistently scheduled PUSCH.
  • the first physical channel may be a dynamically scheduled PDSCH
  • the second physical channel may be a semi-persistently scheduled PDSCH.
  • the DCI format when the DCI format is used to schedule the first physical channel, the DCI format can meet the condition that the DCI format is used for dynamic scheduling of the physical channel. For example, the DCI format can be scrambled using the cell radio network temporary identity (C-RNTI).
  • C-RNTI cell radio network temporary identity
  • the DCI format when the DCI format is used to activate the second physical channel, the DCI format can meet the condition that the DCI format is used to activate the semi-persistent scheduling physical channel. For example, the DCI format is scrambled using CS-RNTI, and the NDI information field of the DCI format can be 0.
  • the physical resources occupied by the first physical channel or the second physical channel may be part or all of the alternative physical resources.
  • the alternative physical resources may constitute a resource allocation table.
  • the resources occupied by the first physical channel may be one of A alternative physical resources, and the A alternative physical resources may constitute a first resource allocation table;
  • the physical resources occupied by the second physical channel may be one of B alternative physical resources, and the B alternative physical resources may constitute a second resource allocation table.
  • a and B may both be positive integers.
  • an alternative physical resource can be determined by one or more of the information of time slot offset K 2 , the information of the start symbol S in the time slot, the information of the time domain length L, SLIV, etc.
  • each row of the first resource allocation table or the second resource allocation table can represent an alternative physical resource, and each row can include one or more of the information of K 2 , S, L, SLIV, etc.
  • the physical resources occupied by the first physical channel are included in the preconfigured A physical resources, and the first information field (length is N bits) can be used to indicate the physical resources occupied by the first physical channel in the preconfigured A physical resources.
  • A is a positive integer
  • N can be greater than or equal to
  • the first information field may be used to indicate the physical resources occupied by the first physical channel among the pre-configured 8 physical resources. That is, N is an integer greater than or equal to 3. In other words, the length of the first information field is greater than or equal to 3 bits.
  • the indication result of N bits may be the value n of the first information field.
  • the value of the first information field may be used to indicate the physical resources occupied by the first physical channel, or the value n of the first information field may be used to indicate the physical resources of the first physical channel.
  • n may correspond to a row in a preconfigured first resource allocation table.
  • n may correspond to row n+1 in the first resource allocation table.
  • n may correspond to a row in the first resource allocation table with an index corresponding to n.
  • the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel
  • some or all of the M bits may be used to indicate the physical resources occupied by the second physical channel.
  • Part or all of the bits may be represented by Q bits, that is, Q is a positive integer less than or equal to M.
  • the Q bit of the N bit and the M bit is used to indicate the physical resources occupied by the second physical channel, and the physical resources occupied by the second physical channel are included in the preconfigured B time domain resources. That is, the indication result of the N bit and the Q bit can be used to indicate the physical resources occupied by the second physical channel in the B preconfigured physical resources.
  • the Q bit can be Q consecutive bits in the M bit.
  • the present application does not limit the specific position of the Q bit in the M bit.
  • the terminal device and the network device determine the specific position of the Q bit in the M bit, so as to accurately determine the physical resources indicated by the N bit and the Q bit, thereby achieving accurate transmission.
  • the position of the Q bit in the M bit can be determined by one or more of the following methods: pre-configuration, preset value, and protocol specification.
  • the Q bit and the N bit may form a first bit sequence.
  • the indication result of the first bit sequence may be used to indicate the physical resources occupied by the second physical channel.
  • the Q bit may be located at a high position of the first bit sequence, and the N bit may be located at a low position of the first bit sequence.
  • the Q bit may be located at a low position of the first bit sequence, and the N bit may be located at a high position of the first bit sequence.
  • the indication result of the N bits and the M bits can be the value q of the first bit sequence.
  • the value q of the first bit sequence can be used to indicate the physical resources occupied by the second physical channel.
  • q can correspond to a row in a preconfigured second resource allocation table.
  • the second resource allocation table may include one or more physical resources for the second physical channel to be selected.
  • q can correspond to the q+1 row in the second resource allocation table.
  • q can correspond to a row in the second resource allocation table with an index corresponding to q.
  • DCI format can be format 0_0, 0_1 or 0_2.
  • Example 1 The present application is described in detail below through Example 1 and Example 2.
  • the network device can pre-configure a first resource allocation table including 16 candidate time domain resources, as shown in Table 3.
  • the network device pre-configures a second resource allocation table including 64 candidate time domain resources, as shown in Table 4.
  • the TDRA information field in DCI format 0_1 is 4 bits, and the RV information field is 2 bits.
  • the terminal device can receive DCI format 0_1. If it is determined that the DCI format 0_1 is used to schedule dynamically scheduled PUSCH, the terminal device can determine one from 16 alternative time domain resources based on Table 3 according to the index indicated by the TDRA information field. If it is determined that the DCI format 0_1 is used to activate semi-persistent PUSCH transmission, the terminal device can determine one from 64 alternative time domain resources based on Table 4 according to the index indicated by the 6-bit information consisting of the TDRA information field and the RV information. Among them, the RV bit can also be set to a high position, and the TDRA bit can be set to a low position.
  • the network device For dynamically scheduled PUSCH, the network device preconfigures a first resource allocation table including 8 candidate time domain resources, as shown in Table 5. For semi-persistently scheduled PUSCH, the network device configures a second resource allocation table including 16 candidate time domain resources.
  • the TDRA information field in DCI format 0_1 is 3 bits, and the RV information field is 2 bits.
  • the terminal device can receive DCI format 0_1. If it is determined that the DCI format 0_1 is used to schedule dynamically scheduled PUSCH, the terminal device can determine one from the 8 alternative time domain resources based on Table 5 according to the index indicated by the TDRA information field. If it is determined that the DCI format 0_1 is used to activate semi-persistent PUSCH transmission, the terminal device can determine one from the 16 alternative time domain resources based on Table 6 according to the index indicated by the 4-bit information consisting of 3 bits in the TDRA information field and 1 bit in the RV information. In Table 6, the 1 bit in the RV information field is the lowest bit. In other embodiments, the bit used by the RV information field to indicate the time domain resource may be the highest bit.
  • RV domain TDRA information field Alternative Time Resources X0 000 The first alternative time domain resource X0 001 The second alternative time domain resource ... ... ... X0 111 The eighth alternative time domain resource X1 000 Ninth Alternative Time Domain Resource ... ... ... X1 111 Sixteenth Alternative Time Domain Resource
  • Tables 3 to 6 are only examples, and the first resource allocation table or the second resource allocation table can be flexibly set according to the situation.
  • Fig. 3 is a schematic structural diagram of a terminal device 300 provided in an embodiment of the present application.
  • the terminal device 300 includes a receiving unit 310.
  • the receiving unit 310 is used to receive a DCI format; wherein the DCI format includes a first information field and a second information field, and when the DCI format is used to schedule a first physical channel, the first information field is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate a second physical channel, the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel.
  • the first information field includes a TDRA information field or a FDRA information field.
  • the second information field includes a redundant version information field and/or a HARQ process number information field.
  • the first physical channel is a dynamically scheduled PUSCH, and the second physical channel is a semi-persistently scheduled PUSCH; or, the first physical channel is a dynamically scheduled PDSCH, and the second physical channel is a semi-persistently scheduled PDSCH.
  • the length of the first information field is N bits, and the physical resources occupied by the first physical channel are included in the preconfigured A physical resources, where N is greater than or equal to N and A are both positive integers.
  • the length of the first information field is N bits
  • the length of the second information field is M bits
  • the N bits and the Q bit of the M bits are used to indicate the physical resources occupied by the second physical channel
  • the physical resources occupied by the second physical channel are included in the preconfigured B time domain resources, wherein N+Q is greater than or equal to Q is less than or equal to M, and M, N, Q and B are all positive integers.
  • the Q bit is the first Q bit or the last Q bit of the M bits.
  • the Q bit and the N bit form a first bit sequence
  • the Q bit is located at a high bit of the first bit sequence
  • the N bit is located at a low bit of the first bit sequence.
  • the DCI format when used to schedule a first physical channel, the DCI format is scrambled using C-RNTI.
  • the DCI format when used to activate a second physical channel, the DCI format is scrambled using CS-RNTI, and an NDI information field of the DCI format is set to 0.
  • the receiving unit 310 may be a transceiver 540.
  • the terminal device 300 may further include a transceiver 530, a processor 510 and a memory 520, as specifically shown in FIG5 .
  • Fig. 4 is a schematic structural diagram of a network device 400 provided in an embodiment of the present application.
  • the network device 400 may include a sending unit 410.
  • the sending unit 410 is used to send a DCI format; wherein the DCI format includes a first information field and a second information field, and when the DCI format is used to schedule a first physical channel, the first information field is used to indicate the physical resources occupied by the first physical channel; when the DCI format is used to activate a second physical channel, the first information field and the second information field are used to indicate the physical resources occupied by the second physical channel.
  • the first information field includes a time domain resource allocation TDRA information field or a FDRA frequency domain resource allocation information field.
  • the second information field includes a redundant version information field and/or a HARQ process number information field.
  • the first physical channel is a dynamically scheduled PUSCH, and the second physical channel is a semi-persistently scheduled PUSCH; or, the first physical channel is a dynamically scheduled PDSCH, and the second physical channel is a semi-persistently scheduled PDSCH.
  • the length of the first information field is N bits, and the physical resources occupied by the first physical channel are included in the preconfigured A physical resources, where N is greater than or equal to N and A are both positive integers.
  • the M bits include a Q bit
  • the length of the first information field is N bits
  • the length of the second information field is M bits
  • the N bits and the Q bit of the M bits are used to indicate the physical resources occupied by the second physical channel
  • the physical resources occupied by the second physical channel are included in the preconfigured B time domain resources, wherein N+Q is greater than or equal to Q is less than or equal to M, and M, N, Q and B are all positive integers.
  • the Q bit is the first Q bit or the last Q bit of the M bits.
  • the Q bit and the N bit form a first bit sequence
  • the Q bit is located at a high bit of the first bit sequence
  • the N bit is located at a low bit of the first bit sequence.
  • the DCI format when used to schedule a first physical channel, the DCI format is scrambled using C-RNTI.
  • the DCI format when used to activate a second physical channel, the DCI format is scrambled using CS-RNTI, and an NDI information field of the DCI format is set to 0.
  • the sending unit 410 may be a transceiver 540.
  • the network device 400 may further include a transceiver 530, a processor 510 and a memory 520, as specifically shown in FIG5 .
  • FIG5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the dotted lines in FIG5 indicate that the unit or module is optional.
  • the device 500 may be used to implement the method described in the above method embodiment.
  • the device 500 may be a chip, a terminal device or a network device.
  • the device 500 may include one or more processors 510.
  • the processor 510 may support the device 500 to implement the method described in the above method embodiment.
  • the processor 510 may be a general-purpose processor or a special-purpose processor.
  • the processor may be a central processing unit (CPU).
  • the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), graphics processing units (GPU) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • ASIC application-specific integrated circuits
  • FPGA field programmable gate arrays
  • GPU graphics processing units
  • a general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.
  • the apparatus 500 may further include one or more memories 520.
  • the memory 520 stores a program, which can be executed by the processor 510, so that the processor 510 executes the method described in the above method embodiment.
  • the memory 520 may be independent of the processor 510 or integrated in the processor 510.
  • the apparatus 500 may further include a transceiver 530.
  • the processor 510 may communicate with other devices or chips through the transceiver 530.
  • the processor 510 may transmit and receive data with other devices or chips through the transceiver 530.
  • the present application also provides a computer-readable storage medium for storing a program.
  • the computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes a program.
  • the computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal or network device in each embodiment of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal or network device in each embodiment of the present application.
  • the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, B can be obtained through C; it can also mean that there is an association relationship between A and B.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.
  • pre-definition or “pre-configuration” can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method.
  • pre-definition can refer to what is defined in the protocol.
  • the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.
  • the term "and/or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • 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 a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande propose un procédé de communication, un équipement terminal et un dispositif réseau. Le procédé de communication comprend les étapes suivantes : un équipement terminal reçoit un format DCI, le format DCI comprenant un premier domaine d'informations et un second domaine d'informations ; à la condition que le format DCI soit utilisé pour planifier un premier canal physique, le premier domaine d'informations est utilisé pour indiquer des ressources physiques occupées par le premier canal physique ; et, à la condition que le format DCI soit utilisé pour activer un second canal physique, le premier domaine d'informations et le second domaine d'informations sont utilisés pour indiquer des ressources physiques occupées par le second canal physique. À la condition que le format DCI soit utilisé pour planifier le premier canal physique, le format DCI comporte un faible nombre de bits utilisés pour indiquer la condition d'occupation des ressources physiques dans le premier canal physique. Par conséquent, il n'y a pas de bit redondant ou moins de bits redondants dans le format DCI pour planifier le premier canal physique, ce qui permet d'éviter le problème de réduction de l'efficacité de transmission.
PCT/CN2022/129805 2022-11-04 2022-11-04 Procédé de communication, équipement terminal et dispositif réseau WO2024092702A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113518413A (zh) * 2020-04-10 2021-10-19 华为技术有限公司 一种通信方法、装置及系统
CN113676957A (zh) * 2020-05-15 2021-11-19 华为技术有限公司 一种切换方法及装置
US20210385831A1 (en) * 2018-11-01 2021-12-09 Sharp Kabushiki Kaisha User equipments, base stations, and methods
CN115004620A (zh) * 2022-04-29 2022-09-02 北京小米移动软件有限公司 无线传输的方法、装置、通信设备及存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210385831A1 (en) * 2018-11-01 2021-12-09 Sharp Kabushiki Kaisha User equipments, base stations, and methods
CN113518413A (zh) * 2020-04-10 2021-10-19 华为技术有限公司 一种通信方法、装置及系统
CN113676957A (zh) * 2020-05-15 2021-11-19 华为技术有限公司 一种切换方法及装置
CN115004620A (zh) * 2022-04-29 2022-09-02 北京小米移动软件有限公司 无线传输的方法、装置、通信设备及存储介质

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