WO2021169579A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2021169579A1
WO2021169579A1 PCT/CN2020/140977 CN2020140977W WO2021169579A1 WO 2021169579 A1 WO2021169579 A1 WO 2021169579A1 CN 2020140977 W CN2020140977 W CN 2020140977W WO 2021169579 A1 WO2021169579 A1 WO 2021169579A1
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WO
WIPO (PCT)
Prior art keywords
uplink transmission
time domain
uplink
frequency
scheduling period
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PCT/CN2020/140977
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English (en)
Chinese (zh)
Inventor
花梦
铁晓磊
李峰
袁锋
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华为技术有限公司
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Publication of WO2021169579A1 publication Critical patent/WO2021169579A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • the bandwidth part (bandwidth part) is introduced.
  • BWP bandwidth part
  • the introduction of BWP is conducive to controlling the cost and power consumption of terminal equipment, and is a key technology in 5G.
  • flexible configuration and processing can be carried out through the concept of BWP, making the 5G system very flexible in bandwidth configuration.
  • a maximum of 4 BWPs can be configured on each carrier used for the cellular link, and at the same time, only one BWP can be activated on one carrier.
  • terminal equipment always performs uplink transmission according to a fixed center frequency and data sampling rate, mainly because when the center frequency or sampling rate changes, radio frequency (RF) parameters need to be reconfigured, so There will be a certain RF interruption time, and the quality and reliability of communication cannot be guaranteed.
  • RF radio frequency
  • the present application provides a communication method and device to enable terminal equipment to determine transmission parameters according to the time-frequency resource information of uplink transmission in a scheduling period, and avoid using the transmission parameters of an activated BWP or an activated carrier to send uplink transmissions, thereby It helps to save power consumption on the terminal device side.
  • an embodiment of the present application provides a communication method, which is suitable for network equipment, and includes:
  • the network device determines at least one piece of scheduling information, where the scheduling information is used to indicate time-frequency resource information of at least one uplink transmission scheduled in the first scheduling period.
  • the at least one piece of scheduling information determined by the network device satisfies the following condition: the interval between the time domain start position of the first scheduling period and the time domain end position of the last uplink transmission of the previous scheduling period is greater than or equal to the first A duration threshold, and/or, the interval duration between the time domain end position of the last uplink transmission in at least one uplink transmission scheduled in the first scheduling period and the time domain start position of the next scheduling period is greater than or equal to the first scheduling period A duration threshold, the uplink transmission of the terminal device is not scheduled within the interval; then the network device sends scheduling information to the terminal device, and receives at least one uplink transmission from the terminal device.
  • the terminal equipment determines the transmission parameters according to the time-frequency resource information of the uplink transmission in the scheduling period, avoiding using the transmission parameters of an activated BWP or an activated carrier to send the uplink transmission, which helps to save on the terminal equipment side. Power consumption.
  • the terminal device can determine different transmission parameters, such as center frequency and data sampling rate, for uplink transmissions in different scheduling periods, so as to realize that uplink transmissions in different scheduling periods use different center frequencies and Data sampling rate.
  • the network device may also send at least one high-level signaling to the terminal device, and the at least one high-level signaling is used to configure the first scheduling period and/or the first duration threshold.
  • the first scheduling period and/or the first duration threshold may be specified by agreement.
  • the at least one piece of scheduling information determined by the network device may also satisfy the following condition: the time domain end position of the time domain resource carrying the scheduling information and the time domain start position of the first scheduling period
  • the interval duration is greater than or equal to the second duration threshold.
  • the second duration threshold is related to at least one of the following factors: the reference time required for the terminal equipment to parse the physical downlink control channel, the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the terminal The preparation time required for the device to send uplink transmission.
  • the first duration threshold is related to at least one of the following factors: the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the time required for the terminal device to send the uplink transmission. It takes time to prepare.
  • the second duration threshold is greater than or equal to the first duration threshold. In a possible implementation, the second duration threshold and the first duration threshold are the same threshold.
  • an embodiment of the present application provides a communication method, which may be executed by a terminal device, and includes:
  • the terminal device can receive at least one first uplink transmission scheduling information, and the at least one first uplink transmission scheduling information is used to indicate the Time-frequency resource information of at least one first uplink transmission scheduled in the period.
  • the terminal device determines at least one transmission parameter of the first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency, and the transmission parameter includes at least one of the center frequency and the data sampling rate; then the terminal device is in the first scheduling period At least one first uplink transmission in the first scheduling period is sent using the transmission parameter.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, and uplink transmissions in different scheduling periods can use different center frequencies and data. Transmission at the sampling rate helps to save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the terminal device also receives at least one downlink transmission scheduling information
  • the at least one downlink transmission scheduling information is used to indicate the frequency domain of at least one downlink transmission scheduled in the first scheduling period Resource information; the terminal equipment according to the maximum frequency and minimum frequency in the frequency domain of at least one first uplink transmission scheduled in the first scheduling period, and the maximum frequency in the frequency domain of at least one downlink transmission scheduled in the first scheduling period
  • the frequency and the minimum frequency determine the transmission parameter of at least one first uplink transmission in the first scheduling period.
  • At least one first uplink transmission in the first scheduling period includes a first partial uplink transmission and a second partial uplink transmission Transmission; where the interval between the time domain start position of the second part of the uplink transmission and the time domain end position of the first part of the uplink transmission is greater than or equal to the first time threshold, and the terminal device may also be scheduled according to the first scheduling period
  • the frequency domain resource information of at least one first uplink transmission, the first transmission parameter of the first part of the uplink transmission in the first scheduling period and the second transmission parameter of the second part of the uplink transmission are determined; and then the terminal equipment in the first scheduling period
  • the first transmission parameter is used to send the first part of the uplink transmission
  • the second transmission parameter is used to send the second part of the uplink transmission in the first scheduling period.
  • the terminal device may also divide the uplink transmission in one scheduling period into three parts or more, which is not limited in the embodiment of the present application. This method helps to further save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the method helps to further save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • an embodiment of the present application provides a communication method, which can be executed by a terminal device, and includes:
  • the terminal device receives at least one first uplink transmission scheduling information from the network device, where the at least one first uplink transmission scheduling information is used to indicate the time-frequency resource information of at least one first uplink transmission scheduled in the first scheduling period.
  • the terminal device determines whether the first interval duration and/or the second interval duration is greater than or equal to a first duration threshold, where the first interval duration is the time domain start position of the first scheduling period and the last of the previous scheduling period The interval duration between the time domain end positions of an uplink transmission, and/or the second interval duration is the time domain end position of the last uplink transmission in at least one first uplink transmission scheduled in the first scheduling period and the next one The length of the interval between the start positions of the time domain of the scheduling period. If yes, the terminal device determines the transmission parameter of at least one first uplink transmission in the first scheduling period according to the frequency domain resource information of the at least one first uplink transmission scheduled in the first scheduling period.
  • the transmission parameters include center frequency and data sampling At least one of the transmission rates; using the transmission parameters in the first scheduling period to send at least one first uplink transmission in the first scheduling period. Otherwise, the terminal device determines that the transmission parameter of at least one first uplink transmission in the first scheduling period is the activated uplink bandwidth part BWP or the transmission parameter of the activated uplink carrier; adopts the activated uplink BWP or activation in the first scheduling period The transmission parameter of the uplink carrier sends at least one first uplink transmission in the first scheduling period.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, and uplink transmissions in different scheduling periods can use different center frequencies for transmission. , Which helps to save power consumption on the terminal equipment side, thereby improving the performance of the terminal equipment.
  • the terminal device may further determine the center frequency or data sampling rate of at least one first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency.
  • the terminal device also receives at least one downlink transmission scheduling information
  • the at least one downlink transmission scheduling information is used to indicate the frequency domain of at least one downlink transmission scheduled in the first scheduling period Resource information, so the terminal equipment can be based on the maximum frequency and minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in the frequency domain, and at least one downlink transmission scheduled in the first scheduling period in the frequency domain
  • the maximum frequency and minimum frequency of determine the transmission parameter of at least one first uplink transmission in the first scheduling period.
  • the uplink transmission in the first scheduling period scheduled by the network device also meets the following conditions: when the first uplink transmission in the first scheduling period is divided into at least two adjacent ones in the time domain Part time, for any two adjacent time domains of the first part of the uplink transmission and the second part of the uplink transmission; among them, the time domain start position of the second part of the uplink transmission is between the time domain end position of the first part of the uplink transmission
  • the interval duration of is greater than or equal to the first duration threshold.
  • the terminal device determines the first transmission parameter of the first part of the uplink transmission in the first scheduling period and the second transmission of the second part of the uplink transmission in the first scheduling period according to the frequency domain resource information of at least one first uplink transmission scheduled in the first scheduling period Parameters; and then use the first transmission parameter to send the first part of the uplink transmission in the first scheduling period, and use the second transmission parameter to send the second part of the uplink transmission in the first scheduling period.
  • At least one uplink transmission in a scheduling period may include at least two parts of uplink transmission.
  • the foregoing first partial uplink transmission and the foregoing second partial uplink transmission are any two time-domain adjacent portions of the at least two partial uplink transmissions, which are not limited in the embodiment of the present application.
  • this method assumes that the uplink transmission data sampling rate B0 in the first scheduling period in the foregoing method embodiment, the data sampling rate corresponding to the two partial uplink transmissions determined by the method is B1 and B2, Among them, B1 and B2 may be less than B0 in whole or in part. The smaller the data sampling rate, the lower the power consumption of the terminal device. It can be seen that this method helps to further save the power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the method helps to further save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the interval duration between the start positions is greater than or equal to the second duration threshold. It should be noted that the second duration threshold and the first duration threshold may be the same threshold.
  • the terminal device may also receive at least one high-level signaling from the network device, where the at least one high-level signaling is used to configure the first scheduling period and/or the first duration threshold.
  • the first scheduling period and/or the first duration threshold may be specified by agreement.
  • an embodiment of the present application provides a communication method, which is suitable for network equipment, and includes:
  • the network device determines at least one piece of first scheduling information, and the at least one piece of first scheduling information is used to indicate time-frequency resource information of M uplink transmissions; wherein, the M uplink transmissions correspond to N uplink transmission groups, and the N uplink transmissions In two adjacent uplink transmissions in the time domain in the first uplink transmission group in the group, the interval between the time domain end position of the previous uplink transmission and the time domain start position of the next uplink transmission is less than the first duration threshold; and /Or, the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first duration threshold , And/or, the interval between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group in the time domain is greater than or equal to the first Duration threshold. Then the network device sends at least one piece of first scheduling information to the terminal device, and receives M uplink transmissions from the terminal
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions.
  • Different uplink transmission groups can use different center frequencies for transmission, which is helpful In order to save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the network device may also send at least one high-level signaling to the terminal device, and the at least one high-level signaling is used to configure the first scheduling period, the first duration threshold, and the second duration threshold.
  • the first scheduling period and/or the first duration threshold may be specified by agreement.
  • the at least one piece of scheduling information determined by the network device may also satisfy the following condition: the time domain end position of the time domain resource carrying the scheduling information and the time domain start position of the first scheduling period
  • the interval duration is greater than or equal to the second duration threshold.
  • the second duration threshold is related to at least one of the following factors: the reference time required for the terminal equipment to parse the physical downlink control channel, the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the terminal The preparation time required for the device to send uplink transmission.
  • the first duration threshold is related to at least one of the following factors: the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the time required for the terminal device to send the uplink transmission. It takes time to prepare.
  • the second duration threshold is greater than or equal to the first duration threshold. In a possible implementation, the second duration threshold and the first duration threshold are the same threshold.
  • an embodiment of the present application provides a communication method, which can be executed by a terminal device, and includes:
  • the terminal device receives at least one piece of first scheduling information, and the at least one piece of first scheduling information is used to indicate M uplink transmission time-frequency resources Information; the terminal equipment determines the N uplink transmission groups corresponding to the M uplink transmissions, and then determines the first transmission parameter according to the time-frequency resource information of the uplink transmission in the first uplink transmission group in the N uplink transmission groups, and the first uplink The transmission group includes at least one uplink transmission; finally, the first transmission parameter is used to send the uplink transmission in the first uplink transmission group, where M and N are positive integers, and M ⁇ N ⁇ 1.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions.
  • Different uplink transmission groups can use different center frequencies for transmission, which is helpful In order to save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the terminal device may determine at least one transmission parameter of the first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency, and the transmission parameter includes at least one of a data sampling rate and a center frequency. .
  • the terminal device if the terminal device also receives at least one downlink transmission scheduling information, the at least one downlink transmission scheduling information is used to indicate the frequency domain of at least one downlink transmission scheduled in the first scheduling period Resource information; the terminal device determines the transmission parameters of the first uplink transmission group according to the maximum frequency and minimum frequency of the first uplink transmission group in the frequency domain, and the maximum frequency and minimum frequency of at least one downlink transmission in the frequency domain, and the transmission The parameter includes at least one of data sampling rate and center frequency.
  • an embodiment of the present application provides a communication method, which may be executed by a terminal device, and includes:
  • the first mode includes:
  • the terminal device After the terminal device receives at least one piece of first scheduling information, when the uplink transmission in the first uplink transmission group meets at least one of the following conditions, it determines N uplink transmission groups corresponding to the M uplink transmissions, wherein at least one of the first uplink transmission groups
  • the scheduling information is used to indicate the time-frequency resource information of M uplink transmissions, where M and N are positive integers, and M ⁇ N ⁇ 1.
  • the terminal device determines the first transmission parameter according to the time-frequency resource information of the uplink transmission in the first uplink transmission group in the N uplink transmission groups.
  • the first uplink transmission group includes at least one uplink transmission, and finally the terminal device adopts the first transmission parameter Sending the uplink transmission in the first uplink transmission group;
  • At least one condition includes: in two adjacent uplink transmissions in the time domain in the first uplink transmission group, the interval between the time domain end position of the previous uplink transmission and the time domain start position of the next uplink transmission is less than the first uplink transmission group.
  • a duration threshold; and/or, the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first duration Threshold, and/or, the interval between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first duration threshold.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, but determines the uplink transmission based on the time-frequency resource information corresponding to the uplink transmission group.
  • the transmission parameter such as the data sampling rate, is usually less than the bandwidth of the activated BWP or the activated carrier. Because the smaller the data sampling rate, the lower the power consumption of the terminal device, so it helps to save the terminal device Side power consumption, thereby improving the performance of the terminal device.
  • the terminal device determines the maximum frequency and the minimum frequency of the uplink transmission in the first uplink transmission group in the frequency domain, and then determines the first uplink transmission group corresponding to the first uplink transmission group according to the maximum frequency and the minimum frequency. Transmission parameters.
  • the first uplink transmission group scheduled by the network device also satisfies the following condition A, and the condition A includes: the time domain end position of the time domain resource of the first scheduling information corresponding to the first uplink transmission group is Before the first time domain position, and the interval between the time domain end position of the time domain resource of the first scheduling information and the first time domain position is greater than or equal to the second duration threshold, the first scheduling information is used to indicate the first uplink For the time-frequency resource information of the uplink transmission in the transmission group, the first time domain position is the earliest position of the first uplink transmission group in the time domain.
  • condition A includes: for the first uplink transmission group, the time domain end position of the time domain resource of the at least one second scheduling information is after the first time domain position, and the at least one second scheduling information is used to indicate the first uplink transmission group
  • the time-frequency resource information of the last L uplink transmissions in the middle time domain the frequency domain range of the uplink transmission scheduled by at least one second scheduling information falls between the maximum frequency and the minimum frequency of the uplink transmission in the first uplink transmission group,
  • the interval between the time domain end position of the last uplink transmission in the time domain in the first uplink transmission group and the earliest position in the time domain of the next uplink transmission group adjacent to the time domain is greater than or equal to the first duration threshold.
  • the terminal equipment executes the second mode, and the second mode is to use the activated uplink For the uplink transmission scheduled by the scheduling information received after the transmission parameter corresponding to the BWP or the activated uplink carrier is sent, T is a positive integer.
  • the present application provides a communication device, and the communication device may be a terminal device or a chip set inside the terminal device.
  • the communication device has the function to implement the first aspect described above.
  • the communication device includes a module or unit or means corresponding to the steps involved in the first aspect described above, and the function or unit or means can be implemented by software , Or it can be realized by hardware, or it can be realized by hardware executing corresponding software.
  • the communication device includes a processing unit and a communication unit.
  • the communication unit can be used to send and receive signals to achieve communication between the communication device and other devices.
  • the communication unit is used to receive The first information of the network device; the processing unit can be used to perform some internal operations of the communication device.
  • the functions performed by the processing unit and the communication unit may correspond to the steps involved in the above-mentioned various aspects of the terminal device.
  • the communication device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals.
  • the processor executes program instructions to complete any possible design or design in the first aspect.
  • the communication device may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory may store necessary computer programs or instructions to realize the functions involved in the first aspect described above.
  • the processor can execute the computer program or instruction stored in the memory, and when the computer program or instruction is executed, the communication device realizes the method in any possible design or implementation manner involved in the above-mentioned various aspects of the terminal device .
  • the communication device includes a processor and a memory, and the memory can store necessary computer programs or instructions for realizing the functions involved in the first aspect.
  • the processor can execute the computer program or instruction stored in the memory, and when the computer program or instruction is executed, the communication device realizes the method in any possible design or implementation manner involved in the above-mentioned various aspects of the terminal device .
  • the communication device includes at least one processor and an interface circuit, where at least one processor is used to communicate with other devices through the interface circuit and execute any possible design or implementation of the first aspect described above. The method executed by the terminal device in the mode.
  • the present application provides a communication device.
  • the communication device may be a network device or a chip set inside the network device.
  • the communication device is capable of implementing the functions involved in the aforementioned network equipment aspect.
  • the communication device includes modules or units or means corresponding to the steps involved in the second aspect described above, and the functions or units or means can be implemented by software, or It is realized by hardware, and it can also be realized by hardware executing corresponding software.
  • the communication device includes a processing unit and a communication unit.
  • the communication unit can be used to send and receive signals to achieve communication between the communication device and other devices.
  • the communication unit is used to communicate with the terminal.
  • the device sends at least one high-level signaling; the processing unit can be used to perform some internal operations of the communication device.
  • the functions performed by the processing unit and the communication unit may correspond to the steps involved in the foregoing network device.
  • the communication device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals, and the processor executes program instructions to complete any possible design or design in the second aspect.
  • the communication device may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory can store the necessary computer programs or instructions for realizing the functions involved in the second aspect described above.
  • the processor can execute the computer program or instruction stored in the memory, and when the computer program or instruction is executed, the communication device realizes the method in any possible design or implementation manner of the aforementioned network device.
  • the communication device includes a processor and a memory, and the memory can store necessary computer programs or instructions for realizing the functions involved in the second aspect.
  • the processor can execute the computer program or instruction stored in the memory, and when the computer program or instruction is executed, the communication device realizes the method in any possible design or implementation manner of the aforementioned network device.
  • the communication device includes at least one processor and an interface circuit, where at least one processor is used to communicate with other devices through the interface circuit and execute any possible design or implementation of the aforementioned network equipment The method in the way.
  • this application provides a computer-readable storage medium in which computer-readable instructions are stored.
  • the computer reads and executes the computer-readable instructions, the computer can execute any of the above aspects.
  • a possible design approach
  • this application provides a computer program product, which when a computer reads and executes the computer program product, causes the computer to execute any of the possible design methods in the above-mentioned various aspects.
  • the present application provides a chip that includes a processor, and the processor is coupled with a memory, and is configured to read and execute a software program stored in the memory to implement any one of the above aspects.
  • a possible design approach
  • 1A is a schematic diagram of multiple uplink transmissions scheduled in an uplink activated BWP provided by an embodiment of the application;
  • FIG. 1B is a schematic diagram of the internal structure of a terminal device provided by an embodiment of the application.
  • FIG. 2 is a schematic diagram of a communication system suitable for the communication method of an embodiment of the present application
  • FIG. 3 is a schematic diagram of a communication method provided by an embodiment of this application.
  • 4A to 4E are schematic diagrams of uplink transmission transmission methods provided by embodiments of this application.
  • FIG. 5 is a schematic diagram of another communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of another communication method provided by an embodiment of this application.
  • FIGS. 7A to 7C are schematic diagrams of uplink transmission transmission methods provided by embodiments of this application.
  • FIG. 8 is a schematic diagram of another communication method provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the terminal devices involved in the embodiments of the present application may be devices that provide voice and/or data connectivity to users, and are also referred to as user equipment (UE), mobile station (MS), and mobile terminal. (mobile terminal, MT) etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • handheld devices with wireless connectivity vehicle-mounted devices, etc.
  • terminal devices are: mobile phones (mobile phones), tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving (self-driving), wireless terminals in remote medical surgery, and smart grid (smart grid)
  • the network equipment involved in the embodiments of the present application may refer to equipment in a wireless network, for example, a radio access network (RAN) node (or device) that connects terminal equipment to the wireless network, which can also be called For the base station.
  • RAN nodes are: continuously evolving node B (gNB), transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB) , Baseband unit (BBU), or wireless fidelity (Wifi) access point (AP), etc.
  • gNB continuously evolving node B
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or
  • the RAN may include a centralized unit (CU) node and a distributed unit (DU) node.
  • CU centralized unit
  • DU distributed unit
  • This structure splits the protocol layer of the eNB in the long term evolution (LTE) system. Some of the protocol layer functions are placed under the centralized control of the CU, and some or all of the protocol layer functions are distributed in the DU. Centralized control of DU.
  • CN equipment involved in the embodiments of the present application.
  • CN equipment corresponds to different equipment in different communication systems.
  • a serving GPRS support node serving GPRS support node, SGSN
  • a gateway GPRS support node gatewayway GPRS support node, GGSN.
  • MME mobility management entity
  • S-GW serving gateway
  • 5G system it corresponds to a 5G system's core network related equipment (such as NG-Core).
  • Carrier bandwidth refers to the frequency bandwidth of a carrier, and can also be referred to as carrier.
  • the carrier bandwidth of the NR system can be one of 10MHz, 15MHz, 20MHz, 50MHz, 100MHz, 200MHz, 400MHz, and so on.
  • BWP is the concept of 5G NR, that is, network equipment and terminal equipment occupy part of the bandwidth of a certain cell.
  • the main reason is that the bandwidth of a carrier of 5G can be very large, such as 200MHz or 400MHz.
  • the bandwidth of one carrier is the bandwidth of each component carrier (CC) in a single base station carrier aggregation (CA) or dual connectivity (DC) scenario.
  • CA base station carrier aggregation
  • DC dual connectivity
  • Some terminal devices cannot support such a large bandwidth, so the network device can configure the BWP for the terminal device, such as 20MHz, and the terminal device can communicate with the network device on the 20MHz BWP.
  • BWP In frequency division duplexing (FDD) or time division duplexing (TDD) systems, BWP is supported.
  • BWP can be divided into downlink BWP (downlink BWP, DL BWP) and uplink BWP (uplink BWP, UL BWP), network equipment can configure multiple DL BWP and multiple UL BWP for the terminal device, and activate at least one DL BWP and activate at least A UL BWP, the terminal device receives the downlink transmission sent by the network device on the activated DL BWP (active DL BWP), the downlink transmission includes but not limited to: downlink control signaling, downlink data; the terminal device is in the activated UL BWP
  • the uplink transmission includes but is not limited to: uplink control signaling and uplink data; wherein, the uplink control signaling may include scheduling request (SR), sounding reference signal (SRS), Channel state information (CSI)/channel quality indicator (CQI) feedback, demodulation reference signals (
  • the parameters of the BWP include the numerology parameter, which refers to the sub-carrier spacing, the symbol length corresponding to the sub-carrier spacing, and the cyclic prefix (CP) length and other parameters.
  • the DL BWP and the UL BWP of the terminal device are switched in pairs, that is, once the DL BWP is switched, the UL BWP is automatically switched to the pre-paired UL BWP.
  • the UE's DL BWP handover and UL BWP handover are decoupled, not paired handover.
  • Activating the BWP refers to converting the BWP from an inactive state to an active state, which can also be understood as converting an inoperable BWP into a working BWP.
  • deactivating the BWP can also be described as deactivating the BWP, which refers to converting the BWP from an active state to an inactive state, and can also be understood as converting a working BWP into an inoperable BWP.
  • the active state can refer to the working state.
  • the BWP is in the active state means that the BWP is in a working state, for example, a state in which signal transmission or reception can be realized.
  • the inactive state is a concept corresponding to the active state, and it can refer to a state that is not working.
  • the BWP in the inactive state means that the BWP is in an inoperable state, for example, the BWP in the inactive state cannot implement signal transmission or reception.
  • the activated BWP refers to the BWP in the activated state, and can also be understood as the BWP that can send or receive signals.
  • the inactive BWP is a concept corresponding to the activated BWP. It refers to the BWP in the inactive state, and can also be understood as the BWP that cannot send or receive signals.
  • BWP switch used to switch the activated BWP.
  • the network device configures two DL BWPs for the terminal device, namely DL BWP1 and DL BWP2.
  • the DL BWP activated by the terminal device is DL BWP1.
  • the network device can send a BWP switching instruction (the switching instruction is downlink control information carried on a PDCCH) to switch the DL BWP of the terminal device to DL BWP2.
  • the network device can also instruct the activated UL BWP of the terminal device to switch, which is also indicated by the PDCCH.
  • the uplink channels in NR include: physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH) and physical random access channel (PRACH).
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • PRACH physical random access channel
  • PUSCH transmission is divided into three types: (1) PUSCH transmission based on dynamic scheduling; (2) Configured grant Type1: receiving high-level configuration without receiving physical layer instructions, which is called in the protocol "Configured uplink grant”; (3) Configured grant (Configured grant) Type2: First receive high-level configuration, and then the physical layer instructs DCI to activate or deactivate, which is called "configured uplink grant based on L1signalling" in the protocol.
  • the terminal device receives an uplink schedule, and then performs a PUSCH transmission; for the second type of PUSCH transmission, the upper layer configures some semi-persistent resources, and the terminal device can use it if it has uplink data to send.
  • PUSCH transmission If there is no uplink data to be transmitted, no data transmission is performed.
  • the upper layer configures some semi-persistent resources, which are then activated and deactivated by physical layer signaling.
  • the second type of PUSCH transmission is similar. When it is not activated or deactivated, these resources cannot be used.
  • the cell is a high-level (such as the RRC layer, medium access control (medium access control, MAC) layer and other protocol layers above the physical layer) described from the perspective of resource management or mobility management.
  • the coverage area of each network device can be divided into one or more cells.
  • a cell can be configured with one downlink carrier, and optionally at least one uplink carrier. A part of the bandwidth on a carrier of a BWP in a cell.
  • the cell is a general name. For terminal equipment, the cell that provides services for it is called the serving cell.
  • the cell involved in this application may also be a serving cell.
  • the scheduling method of network equipment in NR standard R15 When the network equipment schedules the terminal equipment to receive downlink data, or the network equipment schedules the terminal equipment to send uplink data, the network equipment first sends scheduling information to the terminal equipment (physical downlink control channel ( physical downlink control channel, PDCCH), the scheduling information will indicate PDSCH (downlink data) or physical uplink shared channel (physical uplink shared channel, PUSCH) (uplink data) transmission parameters, including PDSCH/PUSCH transmission parameters Time-frequency resource location.
  • PDCCH physical downlink control channel
  • the time domain resource location includes the time slot where the PDSCH/PUSCH is located, the start position and length of the symbol occupied by the PDSCH/PUSCH in the above-mentioned time slot, and the frequency domain resource location includes the maximum bandwidth occupied by the PDSCH/PUSCH. Frequency and minimum frequency, and bandwidth size.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • first and second are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • the first signal and the second signal are only for distinguishing different signals, but do not indicate the difference in content, priority, transmission order, or importance of the two signals.
  • the terminal equipment determines the center frequency (also known as DC ( direct current, DC) location) and data sampling rate.
  • the data sampling rate of the uplink transmission refers to the sampling rate of the digital domain signal before being converted into the analog domain signal.
  • the data sampling rate needs to be greater than or equal to the data bandwidth of the uplink transmission (between the highest frequency and the lowest frequency). The frequency domain interval).
  • the data sampling rate is usually greater than the bandwidth of the activated BWP. For example, when the BWP bandwidth is 10MHz, the data sampling rate can be 15.36MHz; when the BWP bandwidth is 20MHz, the data sampling rate can be 30.72MHz.
  • the processor mode is accompanied by processing such as software scheduling and configuration cancellation. These processings require a certain length of time. It is assumed that the length of time is the first time length threshold T 0 .
  • terminal device uses a fixed center frequency and data sampling rate to send all the scheduled uplink transmissions in the BWP.
  • BBIC baseband integrated circuit
  • RFIC radio frequency integrated circuit
  • the RFIC contains a digital front-end (digital front-end: DFE) chip. ), digital to analog converter (DAC) and analog front-end (analog front-end: AFE), as shown in Figure 1B.
  • the sampling rate of the digital domain signal transmitted on the interface of BBIC and RFIC is the data sampling rate of uplink transmission. It can also be understood that the sampling rate of the digital domain signal before the DAC is the data sampling rate for uplink transmission.
  • the terminal equipment uses a fixed center frequency and data sampling rate for uplink transmission, the two chips are in working state, and RFIC and BBIC will consume power. Among them, the power consumption of RFIC is larger than that of BBIC, and the center frequency can be changed. And the data sampling rate can reduce the power consumption of RFIC and BBIC. Therefore, the terminal equipment uses a fixed center frequency and data sampling rate to send all the uplink transmissions scheduled in a BWP, which is not conducive to saving the power consumption of the terminal equipment.
  • this embodiment of the application provides a communication method to realize the uplink transmission scheduled in an activated BWP is sent in clusters.
  • Different clusters can use different center frequencies and data sampling rates for uplink transmission. Since the terminal equipment guarantees that the interval between different clusters is longer than the time required for switching the center frequency (for example, the above-mentioned first time threshold), not only the normal transmission of the uplink transmission can be guaranteed, but also the power consumption of the terminal equipment can be saved.
  • FIG. 2 is a schematic diagram of a communication system applicable to the embodiments of this application.
  • the terminal device 230 can access a wireless network to obtain Internet services through the wireless network, or communicate with other terminal devices through the wireless network.
  • the wireless network includes a network device 210 and a core network device 220.
  • the network device 210 is used to connect the terminal device 230 to the wireless network
  • the core network device 220 is used to manage the terminal device and provide a gateway for communication with the Internet.
  • the network architecture shown in FIG. 2 only includes two terminal devices 230 as an example for description, but the embodiment of the present application is not limited to this, for example, the network architecture may also include more terminal devices 130; similarly Ground, the network architecture may also include more network devices 210, and may also include other devices.
  • the network architecture applied by the solution in the embodiments of the present application may be a 5G NR network architecture, and of course, it may also be a newly added network architecture in the future.
  • the corresponding names of the network equipment and terminal equipment involved in the embodiments of this application may be the names of the corresponding functions in the wireless communication network.
  • the network equipment may be gNB, TRP, etc.
  • the terminal equipment may be UE, MS, etc. .
  • a 5G NR network architecture is taken as an example for description.
  • FIG. 3 is a schematic flowchart of a communication method provided by an embodiment of the application. The method may include the following steps.
  • Step 301 The network device determines at least one piece of scheduling information, where the at least one piece of scheduling information is used to indicate time-frequency resource information of at least one uplink transmission scheduled in a first scheduling period.
  • the scheduling information may be carried in the signaling sent by the network device to the terminal device.
  • the signaling in the embodiments of this application may be one of radio resource control (radio resource control, RRC) signaling, medium access control (medium access control, MAC) control element (CE), or physical layer signaling
  • RRC radio resource control
  • CE medium access control
  • DCI Downlink Control Information
  • the uplink transmission scheduled by the at least one scheduling information satisfies at least one of the first condition and the second condition:
  • the first condition the interval duration between the time domain start position of the first scheduling period and the time domain end position of the last uplink transmission of the previous scheduling period ⁇ the first duration threshold, or, from the time domain of the first scheduling period
  • the time domain start position can refer to the start position of the time domain start symbol
  • the time domain end position refers to the end position of the time domain end symbol
  • the symbol can refer to the occupied orthogonal frequency division. Multiplexing (orthogonal frequency division multiplexing, OFDM) symbols.
  • the first scheduling period refers to the period P between t1 and t3 in FIG. 4A
  • the time domain start position of the first scheduling period is t1
  • the last The time domain end position of the uplink transmission is t0
  • the interval duration T1 between t0 and t1 is greater than or equal to the first duration threshold T0.
  • the second condition the interval length between the time domain end position of the last uplink transmission in the at least one uplink transmission scheduled in the first scheduling period and the time domain start position of the next scheduling period ⁇ the first time length threshold, Or, the interval duration between the time domain end position of the last uplink transmission in the at least one uplink transmission scheduled in the first scheduling period and the time domain start position of the next scheduling period> the first duration threshold.
  • the uplink transmission of the terminal device is not scheduled within the interval duration.
  • the time domain end position of the last uplink transmission in at least one uplink transmission scheduled in the first scheduling period is t2, and the time domain start position of the next scheduling period is t3, t2 and t2.
  • the interval duration T2 between t3 is greater than or equal to the first duration threshold T0.
  • the network device may also send at least one high-level signaling to the terminal device.
  • the at least one high-level signaling may be used to configure the size of the scheduling period (as shown in FIG. 4A).
  • P a first duration threshold
  • T ⁇ a second duration threshold
  • the first duration threshold is used to indicate the duration required for switching the center frequency.
  • the first duration threshold is related to at least one of the following factors: the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the preparation time required for the terminal device to send the uplink transmission.
  • the second duration threshold is related to at least one of the following factors: the reference time required for the terminal equipment to parse the PDCCH, the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the bandwidth of the center frequency of the uplink transmission, or the terminal equipment’s The preparation time required to send an uplink transmission.
  • the second duration threshold is greater than or equal to the first duration threshold, or the second duration threshold is greater than the first duration threshold. That is, the second duration threshold is based on the first duration threshold, and the reference duration required for the terminal device to resolve the PDCCH needs to be increased. It should be noted that the second duration threshold and the first duration threshold may be the same threshold.
  • the network device may send a high-level signaling, such as RRC signaling, to the terminal device once, and configure the period P, the first duration threshold, and the second duration threshold in the high-level signaling; or the network device may also send The terminal device sends multiple high-level signaling, such as RRC signaling, and the high-level signaling sent different times is configured with a period P, a first duration threshold, and a second duration threshold, respectively.
  • a high-level signaling such as RRC signaling
  • Step 302 The network device sends the above-mentioned at least one scheduling information to the terminal device.
  • Step 303 The terminal device receives the at least one piece of scheduling information.
  • Step 304 The terminal device determines the maximum frequency and the minimum frequency in the frequency domain of at least one uplink transmission scheduled in the first scheduling period, and determines at least one first scheduling period in the first scheduling period according to the maximum frequency and the minimum frequency.
  • An uplink transmission transmission parameter, the transmission parameter including at least one of a center frequency and a data sampling rate.
  • the terminal device may use any of the following methods to determine the center frequency and data sampling rate.
  • Manner 1 The terminal device determines the maximum frequency and the minimum frequency in the frequency domain of at least one uplink transmission scheduled in the first scheduling period, and then the terminal device determines at least one uplink in the first scheduling period according to the maximum frequency and the minimum frequency. The center frequency of the transmission.
  • the terminal equipment determines the center frequencies of the three uplink transmissions in the scheduling period as (f H- f L )/ according to f H and f L 2.
  • the terminal device can determine that the data sampling rate of the three uplink transmissions in the scheduling period is greater than or equal to (f H- f L ), for example, the data sampling rate is 30.72*2 n MHz, where n is to satisfy 30.72*2 n ⁇ The smallest integer of (f H- f L ).
  • the terminal device if the terminal device also receives at least one downlink transmission scheduling information from the network device, the at least one downlink transmission scheduling information is used to indicate the at least one scheduled in the first scheduling period Frequency domain resource information for a downlink transmission. Because in the TDD mode, the center frequency of the uplink transmission is not only related to the scheduling information of the uplink transmission, but also related to the scheduling information of the downlink transmission, so the terminal equipment can be based on the at least one first uplink transmission scheduled in the first scheduling period. The maximum frequency and minimum frequency in the domain, and the maximum frequency and minimum frequency in the frequency domain of at least one downlink transmission scheduled in the first scheduling period, determine the center frequency of at least one uplink transmission in the first scheduling period.
  • the first scheduling period refers to the period P between t1 and t3
  • a black transmission block shown in FIG. 4B corresponds to downlink transmission
  • the maximum frequency of the downlink transmission is f H '
  • the minimum frequency of the downlink transmission is f L '
  • the terminal device f H 'and determines the center frequency f L three uplink transmission in the scheduling period (f H' -f L) / 2 is determined within the three uplink scheduling period according to transmission data sample rate greater than or equal (f H '-f L), for example 30.72 * 2 n MHz, where n is satisfied 30.72 * 2 n ⁇ (f H ' -f L) is the smallest integer.
  • Step 305 The terminal device uses the transmission parameter to send at least one uplink transmission in the first scheduling period in the first scheduling period.
  • the uplink transmission in the first scheduling period is regarded by the terminal device as a cluster of uplink transmission, and the terminal device uses the center frequency to send the cluster of uplink transmission.
  • the uplink transmission in each scheduling period is regarded by the terminal device as a cluster of uplink transmission, and the terminal device uses the corresponding center frequency and data sampling rate to send each cluster of uplink transmission.
  • Step 306 The network device receives the above-mentioned at least one first uplink transmission.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, and uplink transmissions in different scheduling periods can use different center frequencies and data sampling. Transmission at a higher rate helps to save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the network device when the network device sends the foregoing at least one uplink transmission scheduling information to the terminal device, the network device determines to carry the scheduling information of the at least one uplink transmission
  • the interval duration between the time domain end position of the time domain resource of the information and the first time domain position is greater than the second duration threshold, where the first time domain position refers to the time domain start position of the first scheduling period.
  • the first scheduling period refers to the period P between t1 and t3
  • the time domain start position of the first scheduling period is t1
  • the time domain end position of the time domain resource is t4
  • the interval duration T3 between t4 and t1 is greater than or equal to the second duration threshold T ⁇ .
  • the at least one uplink transmission scheduling information may exist.
  • the time domain end position of the time domain resource of one or more scheduling information is after the first time domain position.
  • the L (L>0) uplink transmissions scheduled by the one or more scheduling information also need to meet at least one of the following conditions, so that the terminal device can determine the transmission parameter of at least one uplink transmission in the first scheduling period according to the foregoing method.
  • Specific conditions include:
  • Condition 1 The frequency domain range of the L uplink transmissions falls between the maximum frequency and the minimum frequency determined by the above method. It should be noted that the frequency domain range here includes the two endpoints of the maximum frequency and the minimum frequency.
  • Condition 2 The interval between the end position of the time domain of the L uplink transmissions and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain still needs to be ⁇ the first time threshold T0; or, the L The interval duration between the end position of the uplink transmission in the time domain and the earliest position in the time domain of the next uplink transmission group adjacent to the time domain still needs to be> the first duration threshold T0.
  • the first scheduling period refers to the period P between t1 and t3
  • the time domain start position of the first scheduling period is t1
  • the fourth uplink transmission in this period (Figure The end position of the time domain resource of the time domain resource of the scheduling information of the black-filled uplink transmission block in 4C is t5, t5 can be after t1, but the frequency domain range of the fourth uplink transmission falls within [f H , f L ] , And the interval duration T4 between the time domain end positions t6 and t3 of the fourth transmission still needs to be greater than or equal to T0.
  • the terminal equipment can determine the transmission parameters of each part of the uplink transmission, that is, at least one of the center frequency and the data sampling rate, according to the above method, and then different parts of the uplink transmission can use different transmission parameters for transmission.
  • the interval between the time domain start position of the second part of uplink transmission and the time domain end position of the first part of uplink transmission The duration is greater than or equal to the first duration threshold, or the interval duration between the time domain start position of the second part of uplink transmission and the time domain end position of the first part of uplink transmission> the first duration threshold.
  • the terminal device determines at least one of the first center frequency and the first data sampling rate of the first part of the uplink transmission in the first scheduling period according to the frequency domain resource information of at least one uplink transmission scheduled in the first scheduling period, And at least one of the second center frequency and the second data sampling rate of the second part of the uplink transmission, and then the terminal device uses the first center frequency or the first data sampling rate to send the first part of the uplink transmission in the first scheduling period, And, using the second center frequency or the second data sampling rate to send the second part of the uplink transmission in the first scheduling period.
  • the uplink transmission in one scheduling period may be divided into three parts or more, which is not limited in the embodiment of the present application.
  • This method is compared with the foregoing method embodiment, assuming that the data sampling rate B0 for uploading and transmitting in the first scheduling period in the foregoing method embodiment, the data sampling rate corresponding to the two partial uplink transmissions determined by the method is B1 and B2, Among them, B1 and B2 may be less than B0 in whole or in part. The smaller the data sampling rate, the lower the power consumption of the terminal device. It can be seen that this method helps to further save the power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the terminal device can divide the uplink transmission in the first scheduling period into two parts, where the first part of the uplink transmission is the first two uplink transmissions, and the second part of the uplink transmission is the first two uplink transmissions.
  • Part of the uplink transmission is the third uplink transmission.
  • the terminal equipment determines that the center frequency of the first part of the uplink transmission is f1, and the terminal equipment determines that the center frequency of the second part of the uplink transmission is f2.
  • the terminal equipment uses f1 to send the first part of the uplink in the first scheduling period. Transmission, and using f2 to send the second part of the uplink transmission in the first scheduling period. Yes, this method helps to further save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of the application. The method may include the following steps.
  • Step 501 The network device sends at least one uplink transmission scheduling information to the terminal device.
  • the scheduling information may be carried in the signaling sent by the network device to the terminal device.
  • the signaling may be one or more of RRC signaling, MAC CE, or physical layer signaling.
  • the physical layer signaling here may be DCI.
  • Step 502 The terminal device receives the at least one uplink transmission scheduling information.
  • Step 503 The terminal device determines whether at least one of the first interval duration and the second interval duration ⁇ the first duration threshold, or the terminal device determines whether at least one of the first interval duration and the second interval duration> the first duration threshold If yes, that is, in the case below, the terminal device executes step 504a and step 505a; if not, that is, in case 2, the terminal device executes 504b and step 505b.
  • the first interval duration is the interval duration between the time domain start position of the first scheduling period and the time domain end position of the last uplink transmission of the previous scheduling period.
  • the second interval duration is the interval duration between the time domain end position of the last uplink transmission in the at least one first uplink transmission scheduled in the first scheduling period and the time domain start position of the next scheduling period.
  • the terminal device determines whether the first interval duration is greater than or equal to the first duration threshold, or the terminal device determines whether the first interval duration is greater than the first duration threshold.
  • the terminal device determines whether the second interval duration is greater than or equal to the first duration threshold, or the terminal device determines whether the second interval duration is greater than the first duration threshold.
  • the terminal device determines whether the first interval duration and the second interval duration are greater than or equal to the first duration threshold, or the terminal device determines whether the first interval duration and the second interval duration are greater than the first duration threshold.
  • the interval duration may refer to T1, that is, the interval duration between t0 and t1, that is In other words, the terminal device judges whether T1 is greater than or equal to T0; for the second possible situation, if the first scheduling period is the last scheduling period, the interval duration can refer to T2, that is, the interval duration between t2 and t3, That is to say, the terminal device judges whether T2 is greater than or equal to T0; in the third possible case, if the first scheduling period is the scheduling period between the first scheduling period and the last scheduling period (except for the first scheduling period and the last scheduling period) Scheduling period), the interval duration may refer to T1 and T2, that is, the terminal device judges whether T1 and T2 are both greater than or equal to T0.
  • the first duration threshold is used to indicate the duration required for switching the center frequency, etc.
  • the first duration threshold is related to at least one of the following factors: the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the preparation time required for the terminal device to send the uplink transmission.
  • Step 504a If yes, the terminal device determines the transmission parameter of at least one uplink transmission in the first scheduling period according to the frequency domain resource information of at least one uplink transmission scheduled in the first scheduling period, and the transmission parameters include center frequency and data sampling At least one of the rates.
  • the terminal device may use any of the following methods to determine the center frequency and data sampling rate.
  • Manner 1 The terminal device determines the maximum frequency and minimum frequency in the frequency domain of at least one first uplink transmission scheduled in the first scheduling period, and then the terminal device determines at least the maximum frequency and minimum frequency in the first scheduling period according to the maximum frequency and minimum frequency.
  • the center frequency of an upstream transmission The center frequency of an upstream transmission.
  • the minimum frequency of the three uplink transmissions scheduled in the first scheduling period is f H
  • the minimum frequency of the three uplink transmissions scheduled in the first scheduling period is f L
  • the terminal equipment determines the center frequencies of the three uplink transmissions in the scheduling period as (f H- f L )/ according to f H and f L 2.
  • the terminal device can determine that the data sampling rate of the three uplink transmissions in the scheduling period is greater than or equal to (f H- f L ), for example, the data sampling rate is 30.72*2 n MHz, where n is to satisfy 30.72*2 n ⁇ The smallest integer of (f H- f L ).
  • the terminal device also receives at least one downlink transmission scheduling information from the network device, the at least one downlink transmission scheduling information is used to indicate the frequency domain resource information of at least one downlink transmission scheduled in the first scheduling period. Because in the TDD mode, the center frequency of the uplink transmission is not only related to the scheduling information of the uplink transmission, but also related to the scheduling information of the downlink transmission, so the terminal equipment can be based on the at least one first uplink transmission scheduled in the first scheduling period. The maximum frequency and minimum frequency in the domain, and the maximum frequency and minimum frequency in the frequency domain of at least one downlink transmission scheduled in the first scheduling period, determine the center frequency of at least one uplink transmission in the first scheduling period.
  • the first scheduling period refers to the period P between t1 and t3 in FIG. 4A, and a black transmission block shown in FIG.
  • the maximum frequency is f H '
  • the minimum frequency of the downlink transmission is f L '
  • the terminal apparatus determines the scheduling period three in the uplink transmission data sample rate greater than or equal (f H '-f L), for example 30.72 * 2 n MHz, where n is satisfied 30.72 * 2 n ⁇ (f H ' -f L) is the smallest integer.
  • Step 505a The terminal device uses the transmission parameter to send at least one uplink transmission in the first scheduling period in the first scheduling period.
  • the terminal equipment used for uplink transmission (f H '-f L) / 2 transmits first scheduling period.
  • Step 504b If the terminal device determines that the first interval duration is less than the first duration threshold, and/or the second interval duration is less than the first duration threshold, the terminal device determines that the center frequency of at least one uplink transmission in the first scheduling period is the active uplink The BWP or the center frequency of the activated uplink carrier, and/or the terminal device determines that the data sampling rate of at least one uplink transmission in the first scheduling period is the activated uplink BWP or the data sampling rate of the activated uplink carrier.
  • the center frequency of the activated uplink BWP or the activated uplink carrier is f0, and the terminal device uses f0 to send the uplink transmission in the first scheduling period.
  • Step 505b The terminal device uses the transmission parameter to send at least one first uplink transmission in the first scheduling period in the first scheduling period.
  • Step 506 The network device receives the at least one first uplink transmission.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, and uplink transmissions in different scheduling periods can use different center frequencies and data. Transmission at the sampling rate helps to save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • step 503 when the network device sends the at least one uplink transmission scheduling information to the terminal device, the network device also needs to determine that the bearer is at least The interval duration between the time domain end position of the time domain resource of an uplink transmission scheduling information and the first time domain position ⁇ the second duration threshold, where the first time domain position refers to the time domain start position of the first scheduling period Or, the network device also needs to determine the interval duration between the time domain end position of the time domain resource carrying at least one uplink transmission scheduling information and the first time domain position>the second duration threshold. In this way, the terminal device can calculate the transmission parameters according to the method shown in the above case 1.
  • the second duration threshold is related to at least one of the following factors: the reference time required for the terminal equipment to parse the PDCCH, the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the transmission of the terminal equipment The preparation time required for uplink transmission.
  • the second duration threshold is greater than or equal to the first duration threshold. That is, the second duration threshold is based on the first duration threshold, and the reference duration required for the terminal device to resolve the PDCCH needs to be increased. It should be noted that the second duration threshold and the first duration threshold may be the same threshold.
  • the first scheduling period refers to the period P between t1 and t3, and the time domain start position of the first scheduling period is t1, and the at least one first uplink transmission is carried.
  • the time domain end position of the time domain resource of the scheduling information is t4
  • the terminal device determines that the interval duration T3 between t4 and t1 is greater than or equal to the second duration threshold T ⁇ , and T1 ⁇ T0, and T2 ⁇ T0
  • the terminal device The center frequency is determined according to the maximum frequency and minimum frequency of the three uplink transmissions in the period P.
  • step 302 when the network device sends the scheduling information of the at least one uplink transmission to the terminal device, the at least one uplink transmission is carried.
  • the time domain end position of the time domain resource is after the first time domain position.
  • the terminal device also needs to determine when the L (L>0) uplink transmissions scheduled by the one or more scheduling information also satisfy at least one of the following conditions, then determine the transmission of at least one uplink transmission in the first scheduling period according to the above method parameter.
  • Specific conditions include:
  • Condition 1 The frequency domain range of the L uplink transmissions falls between the maximum frequency and the minimum frequency determined by the above method. It should be noted that the frequency domain range here includes the two endpoints of the maximum frequency and the minimum frequency.
  • the first scheduling period refers to the period P between t1 and t3 in FIG.
  • the time domain end position of the time domain resource of the time domain resource of the transmission is t5, which can be after t1, but the frequency domain range of the fourth uplink transmission falls in [f H , f L ], and the interval duration T4 between the time domain end positions t6 and t3 of the fourth transmission still needs to be greater than or equal to T0.
  • the terminal device may further divide the received uplink transmission into multiple parts, where the uplink transmission of the multiple parts requires When the set conditions are met, the terminal device can determine the transmission parameters of each part of the uplink transmission according to the above method, and then the terminal device can use different transmission parameters to transmit the corresponding part of the uplink transmission.
  • the time domain start position of the second part of the uplink transmission and the time domain end position of the first part of the uplink transmission are different.
  • the terminal device determines the first transmission parameter of the first part of the uplink transmission in the first scheduling period according to the frequency domain resource information of the at least one first uplink transmission scheduled in the first scheduling period, and the first transmission parameter includes the first transmission parameter.
  • the second transmission parameter includes at least one of the second center frequency and the second data sampling rate.
  • the terminal device may also divide the uplink transmission in one scheduling period into three parts or more, which is not limited in the embodiment of the present application. This method helps to further save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the terminal device can divide the uplink transmission in the first scheduling period into two parts, where the first part of the uplink transmission is the first two uplink transmissions, and the second part of the uplink transmission is the first two uplink transmissions.
  • Part of the uplink transmission is the third uplink transmission.
  • the terminal equipment determines that the center frequency of the first part of the uplink transmission is f1, and the terminal equipment determines that the center frequency of the second part of the uplink transmission is f2.
  • the terminal equipment uses f1 to send the first part of the uplink in the first scheduling period. Transmission, and using f2 to send the second part of the uplink transmission in the first scheduling period. Yes, this method helps to further save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the terminal device can group uplink transmissions according to the received scheduling information, so as to use different transmission parameters to send different groups of uplink transmissions.
  • the communication method provided in the embodiments of the present application may also be applied to terminal equipment, and the method may include the following steps.
  • Step 601 The network device determines at least one piece of first scheduling information, where the at least one piece of first scheduling information is used to indicate M uplink transmission time-frequency resource information.
  • the network device can determine the at least one first uplink transmission group.
  • the uplink transmission scheduled by a scheduling information satisfies at least one of the following conditions:
  • the first condition In the two adjacent uplink transmissions in the first uplink transmission group in the first uplink transmission group in the N uplink transmission groups, between the end position of the time domain of the previous uplink transmission and the start position of the time domain of the next uplink transmission
  • the interval duration is less than the first duration threshold.
  • the interval T4 between the two uplink transmissions is less than the first duration threshold T0. .
  • the second condition the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time threshold, or the first uplink The interval duration between the earliest position of the transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain>the first duration threshold.
  • the first transmission group includes two uplink transmissions between t3 and t4 in the figure
  • the earliest position of the first uplink transmission group in the time domain is t3
  • the preceding The latest position of an uplink transmission group in the time domain is t2
  • the interval duration T3 between t2 and t3 is greater than or equal to the first duration threshold T0.
  • the third condition the interval between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group in the time domain is greater than or equal to the first time threshold, or The interval duration between the latest position of an uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain>the first duration threshold.
  • the first transmission group includes three uplink transmissions between t0' and t0 in the figure, and the latest position of the first uplink transmission group in the time domain is t0, and the time domain is adjacent
  • the earliest position of the latter uplink transmission group in the time domain is t1
  • the interval duration T2 between t0 and t1 is greater than or equal to the first duration threshold T0.
  • the network device may also send at least one high-level signaling to the terminal device, and the at least one high-level signaling may be used to configure the first duration threshold (T0 as shown in FIG. 7A).
  • the first duration threshold is used to indicate the duration required for switching the center frequency, etc.
  • the first duration threshold is related to at least one of the following factors: the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the preparation time required for the terminal device to send the uplink transmission.
  • Step 602 The network device sends the at least one piece of first scheduling information to the terminal device.
  • Step 603 The terminal device receives the at least one piece of first scheduling information.
  • Step 604 The terminal device determines N uplink transmission groups corresponding to the M uplink transmissions, and determines the first transmission parameter according to the time-frequency resource information of the uplink transmission in the first uplink transmission group among the N uplink transmission groups.
  • a transmission includes at least one of a first center frequency and a first data sampling rate.
  • the terminal device may determine the first transmission parameter in any of the following manners.
  • Manner 1 The terminal device determines the maximum frequency and the minimum frequency of the uplink transmission in the first uplink transmission group in the frequency domain, and then the terminal device determines the first center frequency according to the maximum frequency and the minimum frequency.
  • the terminal equipment determines the first center frequency corresponding to the first uplink transmission group according to f H and f L as (f H- f L )/2; the terminal equipment determines the data sampling rate of the three uplink transmissions in the scheduling period Greater than or equal to (f H- f L ), for example, the data sampling rate is 30.72*2 n MHz, where n is the smallest integer that satisfies 30.72*2 n ⁇ (f H- f L ).
  • the terminal device also receives at least one downlink transmission scheduling information from the network device, the at least one downlink transmission scheduling information is used to indicate U (U is a positive integer) scheduling information for downlink transmission.
  • the terminal device can be in the frequency domain according to the first uplink transmission group The maximum frequency and minimum frequency of V, and the maximum frequency and minimum frequency of V downlink transmissions in the frequency domain, determine the first center frequency corresponding to the first uplink transmission group.
  • the first uplink transmission group includes two uplink transmissions between t3 and t4 in the figure, and the time-frequency range of the first uplink transmission group is [t3, t4], as shown in FIG. 7B.
  • a black transmission block shown corresponds to downlink transmission, the maximum frequency of the downlink transmission is f H ', and the minimum frequency of the downlink transmission is f L ', because the maximum frequency corresponding to the first uplink transmission group is f H , the minimum frequency corresponding to uplink transmission of the first group is f L, f H and therefore the terminal equipment in accordance with 'f L and determining that the first set corresponding to a first uplink transmission center frequency (f H' -f L) / 2; the terminal device determining three data sampling rate of the uplink transmission in the scheduling cycle is more than (f H '-f L), for example 30.72 * 2 n MHz, where n is satisfied 30.72 * 2 n ⁇ (f H ' -f L) The smallest integer.
  • Step 605 The terminal device uses the first transmission parameter to send the uplink transmission in the first uplink transmission group.
  • the uplink transmission in the first uplink transmission group is regarded by the terminal device as a cluster of uplink transmission, and the terminal device uses the first transmission parameter to send the cluster of uplink transmission.
  • other uplink transmission groups are also regarded by the terminal equipment as a cluster of uplink transmissions, and the terminal equipment uses the corresponding transmission parameters to send each cluster of uplink transmissions.
  • Step 606 The network device receives M uplink transmissions.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, and different uplink transmission groups can use different center frequencies and data sampling rates for transmission. , Which helps to save power consumption on the terminal equipment side, thereby improving the performance of the terminal equipment.
  • the network device determines the time domain that carries the scheduling information of the uplink transmission group The interval duration between the time domain end position of the resource and the first time domain position ⁇ the second duration threshold, or the network device determines the time domain end position and the first time domain position of the time domain resource carrying the scheduling information of the uplink transmission group The interval duration between> the second duration threshold, where the first time domain position refers to the time domain start position of the first uplink transmission group.
  • the second duration threshold is related to at least one of the following factors: the reference time required for the terminal equipment to parse the PDCCH, the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the transmission of the terminal equipment The preparation time required for uplink transmission.
  • the second duration threshold is greater than or equal to the first duration threshold. That is, the second duration threshold is based on the first duration threshold, and the reference duration required for the terminal device to resolve the PDCCH needs to be increased. It should be noted that the second duration threshold and the first duration threshold may be the same threshold.
  • the first transmission group includes two uplink transmissions between t3 and t4 in the figure, and the earliest position of the first uplink transmission group in the time domain is t3, which bears the first uplink transmission.
  • the time domain end position of the time domain resource of the group scheduling information is t5, and the interval duration T5 between t5 and t3 is greater than or equal to the second duration threshold T ⁇ .
  • the scheduling information carrying the first uplink transmission group may exist
  • the time domain end position of the time domain resource of one or more scheduling information is after the first time domain position.
  • the L (L>0) uplink transmissions scheduled by the one or more scheduling information also need to meet at least one of the following conditions I and II, so that the terminal device can determine the first uplink transmission group corresponding to the first uplink transmission group according to the above method.
  • Transmission parameters. Specific conditions include:
  • Condition I The frequency domain range of the L uplink transmissions falls between the maximum frequency and the minimum frequency determined by the above method. It should be noted that the frequency domain range here includes the two endpoints of the maximum frequency and the minimum frequency.
  • the first uplink transmission group includes two uplink transmissions between t3 and t4 in the figure
  • the time domain start position of the first uplink transmission group is t3, which carries the first uplink transmission.
  • the time domain end position of the time domain resource of the group scheduling information is t5
  • t5 is after t3
  • the frequency domain range of the scheduled uplink transmission falls within [f H , f L ]
  • the time of the scheduled uplink transmission The interval duration T6 between the domain end positions t4 and t6 still needs to be greater than or equal to T0, where t6 is the time domain start position of the next uplink transmission group.
  • the terminal device can group uplink transmissions according to the received scheduling information, so as to use different transmission parameters to send different groups of uplink transmissions.
  • the communication method provided in the embodiments of the present application may also be applied to terminal equipment, and the method may include the following steps.
  • Step 801 The network device sends at least one piece of scheduling information to the terminal device.
  • Step 802 The terminal device receives at least one piece of scheduling information.
  • Step 803 When the bandwidth of all uplink transmissions scheduled by the scheduling information received within the third duration threshold is less than or equal to the first bandwidth threshold, the terminal device executes the first mode, where the first mode includes the following steps 804 to 809.
  • Step 804 The terminal device receives at least one piece of first scheduling information from the network device, where the at least one piece of first scheduling information is used to indicate M uplink transmission time-frequency resource information.
  • step 805 the terminal device determines N uplink transmission groups corresponding to M uplink transmissions, where it is assumed that M uplink transmissions correspond to N uplink transmission groups, M and N are positive integers, and M ⁇ N ⁇ 1, then for any one
  • the uplink transmission group is the first uplink transmission group.
  • the terminal device determines whether the first uplink transmission group satisfies at least one of the following conditions A, B, and C. If so, that is, under the circumstances, continue to perform step 806a to step 807a, otherwise, that is, in case 2, execute step 806b to step 807b.
  • Condition A The interval between the time domain end position of the previous uplink transmission and the time domain start position of the next uplink transmission in the time domain of the first uplink transmission group in the N uplink transmission groups. The duration is less than the first duration threshold.
  • the interval T4 between the two uplink transmissions is less than the first duration threshold T0. .
  • Condition B The interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time threshold, or the first uplink The interval duration between the earliest position of the transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain>the first duration threshold.
  • the first transmission group includes two uplink transmissions between t3 and t4 in the figure
  • the earliest position of the first uplink transmission group in the time domain is t3
  • the preceding The latest position of an uplink transmission group in the time domain is t2
  • the interval duration T3 between t2 and t3 is greater than or equal to the first duration threshold T0.
  • Condition C the interval between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group in the time domain adjacent to the time domain is greater than or equal to the first time length threshold.
  • the first transmission group includes three uplink transmissions between t0' and t0 in the figure
  • the latest position of the first uplink transmission group in the time domain is t0
  • the time domain is adjacent
  • the earliest position of the latter uplink transmission group in the time domain is t1
  • the interval duration T2 between t0 and t1 is greater than or equal to the first duration threshold T0.
  • the network device may also send at least one high-level signaling to the terminal device, and the at least one high-level signaling may be used to configure the first duration threshold (T0 as shown in FIG. 4A).
  • the first duration threshold is used to indicate the duration required for switching the center frequency, etc.
  • the first duration threshold is related to at least one of the following factors: the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the preparation time required for the terminal device to send the uplink transmission.
  • Step 806a The terminal device determines a first transmission parameter according to the time-frequency resource information of the uplink transmission in the first uplink transmission group in the N uplink transmission groups.
  • the first transmission parameter includes the first center frequency and the first data sampling rate. At least one of them.
  • the terminal device may determine the first center frequency and the first data sampling rate by using the first method or the second method in step 504a of the third embodiment, which will not be repeated here.
  • Step 807a The terminal device uses the first transmission parameter to send the uplink transmission in the first uplink transmission group.
  • Step 806b If the terminal device does not meet any of the above conditions A to C, the terminal device determines that the first center frequency of the first uplink transmission group is the center frequency of the activated uplink BWP or the activated uplink carrier, and/or the terminal The device determines that the first data sampling rate of the first uplink transmission group is the data sampling rate of the activated uplink BWP or the activated uplink carrier.
  • the center frequency of the activated uplink BWP or the activated uplink carrier is f0, and the terminal device uses f0 to send the uplink transmission in the first scheduling period.
  • Step 807b The terminal device uses the first transmission parameter to send the uplink transmission in the first uplink transmission group.
  • Step 808 The network device receives the uplink transmission in the first uplink transmission group.
  • the terminal device does not use a fixed center frequency and data sampling rate to send all uplink transmissions, and different uplink transmission groups can use different center frequencies and data sampling rates for transmission. Transmission helps to save power consumption on the terminal device side, thereby improving the performance of the terminal device.
  • the foregoing method may perform the following steps 809 to 810:
  • Step 809 The terminal device receives T pieces of scheduling information.
  • Step 810 When the bandwidth of all the uplink transmissions scheduled by the received consecutive T pieces of scheduling information is greater than the second bandwidth threshold, the terminal device switches from the first mode to the second mode, where the second mode is the active For the uplink transmission scheduled by the scheduling information received after the center frequency corresponding to the uplink BWP or the activated uplink carrier is sent, T is a positive integer.
  • the terminal device in the foregoing step 806, not only determines whether the first uplink transmission group meets the condition A, the condition B, and the condition C, but also needs to determine whether the terminal device meets the condition D. , That is, the terminal device determines whether any one of condition A, condition B, and condition C is satisfied, and condition D is satisfied.
  • Method 1 Condition D: The network device determines that the time domain end position of the time domain resource carrying the scheduling information of the first uplink transmission group and the interval duration between the first time domain position ⁇ the second duration threshold, or the network device determines the bearer The interval length between the time domain end position of the time domain resource of the scheduling information of the first uplink transmission group and the first time domain position>the second time length threshold, where the first time domain position refers to the time domain of the first uplink transmission group starting point.
  • the second duration threshold is related to at least one of the following factors: the reference time required for the terminal equipment to parse the PDCCH, the time required to switch the position of the center frequency of the uplink transmission, the time required to switch the data sampling rate of the uplink transmission, or the transmission of the terminal equipment The preparation time required for uplink transmission.
  • the second duration threshold is greater than or equal to the first duration threshold. That is, the second duration threshold is based on the first duration threshold, and the reference duration required for the terminal device to resolve the PDCCH needs to be increased. It should be noted that the second duration threshold and the first duration threshold may be the same threshold.
  • the first transmission group includes two uplink transmissions between t3 and t4 in the figure, and the earliest position of the first uplink transmission group in the time domain is t3, which bears the first uplink transmission.
  • the time domain end position of the time domain resource of the group scheduling information is t5, and the interval duration T5 between t5 and t3 is greater than or equal to the second duration threshold T ⁇ .
  • Condition D is: the time domain end position of the time domain resource carrying the scheduling information of the first uplink transmission group may have one or more scheduling information after the first time domain position.
  • the L (L>0) uplink transmissions scheduled by the one or more scheduling information also need to meet at least one of the following conditions I and II, so that the terminal device can determine the first uplink transmission group corresponding to the first uplink transmission group according to the above method.
  • Transmission parameters. Specific conditions include:
  • Condition I The frequency domain range of the L uplink transmissions falls between the maximum frequency and the minimum frequency determined by the above method. It should be noted that the frequency domain range here includes the two endpoints of the maximum frequency and the minimum frequency.
  • the interval between the end position of the time domain of the L uplink transmissions and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain still needs to be ⁇ the first time threshold T0, or the L
  • the interval duration between the end position of the uplink transmission in the time domain and the earliest position in the time domain of the next uplink transmission group adjacent to the time domain still needs to be> the first duration threshold T0.
  • the first uplink transmission group includes two uplink transmissions between t3 and t4 in the figure
  • the time domain start position of the first uplink transmission group is t3, which carries the first uplink transmission.
  • the time domain end position of the time domain resource of the group scheduling information is t5
  • t5 is after t3
  • the frequency domain range of the scheduled uplink transmission falls within [f H , f L ]
  • the time of the scheduled uplink transmission The interval duration T6 between the domain end positions t4 and t6 still needs to be greater than or equal to T0, where t6 is the time domain start position of the next uplink transmission group.
  • step numbers of the flowcharts described in the embodiments of the present application are only an example of the execution process, and do not constitute a restriction on the order of execution of the steps. There is no timing dependency between the embodiments of the present application. There is no strict order of execution between the steps.
  • the network device or the terminal device may include a hardware structure and/or software module corresponding to each function.
  • the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device and the network device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • FIG. 9 shows a possible exemplary block diagram of a device involved in an embodiment of the present application.
  • the apparatus 900 may include: a processing unit 902 and a communication unit 903.
  • the processing unit 902 is used to control and manage the actions of the device 900.
  • the communication unit 903 is used to support communication between the apparatus 900 and other devices.
  • the communication unit 903 is also called a transceiving unit, and may include a receiving unit and/or a sending unit, which are used to perform receiving and sending operations, respectively.
  • the device 900 may further include a storage unit 901 for storing program codes and/or data of the device 900.
  • the apparatus 900 may be the terminal device in any of the foregoing embodiments, or may also be a chip provided in the terminal device.
  • the processing unit 902 may support the apparatus 900 to perform the actions of the terminal device in the foregoing method examples.
  • the processing unit 902 mainly executes the internal actions of the terminal device in the method example, and the communication unit 903 can support communication between the apparatus 900 and the network device.
  • the apparatus 900 may be the network device in any of the foregoing embodiments, or may also be a chip in the network device.
  • the processing unit 902 may support the apparatus 900 to perform the actions of the network device in the above method examples.
  • the processing unit 902 mainly executes the internal actions of the network device in the method example, and the communication unit 903 can support communication between the apparatus 900 and the network device.
  • the processing unit 902 may be used to perform internal actions of the network device in the method example; the communication unit 903 may be used to perform step 501 in FIG. 5.
  • each unit in the device can be all implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; part of the units can also be implemented in the form of software called by the processing elements, and some of the units can be implemented in the form of hardware.
  • each unit can be a separate processing element, or it can be integrated in a certain chip of the device for implementation.
  • it can also be stored in the memory in the form of a program, which is called and executed by a certain processing element of the device. Function.
  • each step of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in a processor element or implemented in a form of being called by software through a processing element.
  • the unit in any of the above devices may be one or more integrated circuits configured to implement the above methods, for example: one or more application specific integrated circuits (ASICs), or, one or Multiple microprocessors (digital singnal processors, DSPs), or, one or more field programmable gate arrays (Field Programmable Gate Arrays, FPGAs), or a combination of at least two of these integrated circuits.
  • ASICs application specific integrated circuits
  • DSPs digital singnal processors
  • FPGAs Field Programmable Gate Arrays
  • the unit in the device can be implemented in the form of a processing element scheduler
  • the processing element can be a processor, such as a general-purpose central processing unit (central processing unit, CPU), or other processors that can call programs.
  • CPU central processing unit
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the above receiving unit is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above unit for sending is an interface circuit of the device for sending signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • FIG. 10 is a schematic structural diagram of a terminal device according to an embodiment of the application. It may be the terminal device in the above embodiment, and is used to implement the operation of the terminal device in the above embodiment.
  • the terminal device includes: an antenna 1010, a radio frequency part 1020, and a signal processing part 1030.
  • the antenna 1010 is connected to the radio frequency part 1020.
  • the radio frequency part 1020 receives the information sent by the network device through the antenna 1010, and sends the information sent by the network device to the signal processing part 1030 for processing.
  • the signal processing part 1030 processes the information of the terminal equipment and sends it to the radio frequency part 1020
  • the radio frequency part 1020 processes the information of the terminal equipment and sends it to the network equipment via the antenna 1010.
  • the signal processing part 1030 may include a modem subsystem for processing data at various communication protocol layers; it may also include a central processing subsystem for processing terminal equipment operating systems and application layers.
  • the modem subsystem may include one or more processing elements 1031, for example, including a main control CPU and other integrated circuits.
  • the modem subsystem may also include a storage element 1032 and an interface circuit 1033.
  • the storage element 1032 is used to store data and programs, but the program used to execute the method executed by the terminal device in the above method may not be stored in the storage element 1032, but stored in a memory outside the modem subsystem, When in use, the modem subsystem is loaded and used.
  • the interface circuit 1033 is used to communicate with other subsystems.
  • the modem subsystem can be implemented by a chip, the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any method executed by the above terminal device, and the interface circuit is used to communicate with other devices.
  • the unit for the terminal device to implement each step in the above method can be implemented in the form of a processing element scheduler.
  • the device for the terminal device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to Perform the method performed by the terminal device in the above method embodiment.
  • the storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.
  • the program used to execute the method executed by the terminal device in the above method may be a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads a program from the off-chip storage element on the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.
  • the unit of the terminal device that implements each step in the above method may be configured as one or more processing elements, and these processing elements are arranged on the modem subsystem, where the processing elements may be integrated circuits, For example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the units of the terminal device that implement each step in the above method can be integrated together and implemented in the form of an SOC, and the SOC chip is used to implement the above method.
  • the chip can integrate at least one processing element and a storage element, and the processing element can call the stored program of the storage element to implement the method executed by the above terminal device; or, the chip can integrate at least one integrated circuit to implement the above terminal The method executed by the device; or, it can be combined with the above implementations.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus for terminal equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the terminal equipment provided in the above method embodiments.
  • the processing element can execute part or all of the steps executed by the terminal device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the terminal device are executed in a manner; of course, part or all of the steps executed by the terminal device can also be executed in combination with the first manner and the second manner.
  • the processing element here is the same as that described above, and can be implemented by a processor, and the function of the processing element can be the same as the function of the processing unit described in FIG. 9.
  • the processing element may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more microprocessors DSP , Or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be realized by a memory, and the function of the storage element may be the same as the function of the storage unit described in FIG. 9.
  • the storage element may be realized by a memory, and the function of the storage element may be the same as the function of the storage unit described in FIG. 9.
  • the storage element can be a single memory or a collective term for multiple memories.
  • the terminal device shown in FIG. 10 can implement various processes involving the terminal device in the method embodiment illustrated in FIG. 3, FIG. 5, FIG. 6 or FIG. 8.
  • the operations and/or functions of each module in the terminal device shown in FIG. 10 are used to implement the corresponding processes in the foregoing method embodiments.
  • FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of this application. It is used to implement the operation of the network device in the above embodiment.
  • the network equipment includes: an antenna 1101, a radio frequency device 1102, and a baseband device 1103.
  • the antenna 1101 is connected to the radio frequency device 1102.
  • the radio frequency device 1102 receives the information sent by the terminal device through the antenna 1101, and sends the information sent by the terminal device to the baseband device 1103 for processing.
  • the baseband device 1103 processes the information of the terminal device and sends it to the radio frequency device 1102, and the radio frequency device 1102 processes the information of the terminal device and sends it to the terminal device via the antenna 1101.
  • the baseband device 1103 may include one or more processing elements 11031, for example, including a main control CPU and other integrated circuits.
  • the baseband device 1103 may also include a storage element 11032 and an interface 11033.
  • the storage element 11032 is used to store programs and data; the interface 11033 is used to exchange information with the radio frequency device 1102.
  • the interface is, for example, a common public radio interface. , CPRI).
  • the above apparatus for network equipment may be located in the baseband apparatus 1103.
  • the above apparatus for network equipment may be a chip on the baseband apparatus 1103.
  • the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute the above network. For each step of any method executed by the device, the interface circuit is used to communicate with other devices.
  • the unit for the network device to implement each step in the above method can be implemented in the form of a processing element scheduler.
  • the device for the network device includes a processing element and a storage element, and the processing element calls the program stored by the storage element to Perform the method performed by the network device in the above method embodiment.
  • the storage element may be a storage element with the processing element on the same chip, that is, an on-chip storage element, or a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the unit of the network device that implements each step in the above method may be configured as one or more processing elements, and these processing elements are arranged on the baseband device.
  • the processing elements here may be integrated circuits, such as one Or multiple ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the units for the network equipment to implement each step in the above method can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • the baseband device includes the SOC chip for implementing the above method.
  • At least one processing element and storage element can be integrated in the chip, and the processing element can call the stored program of the storage element to implement the method executed by the above network device; or, at least one integrated circuit can be integrated in the chip to implement the above network The method executed by the device; or, it can be combined with the above implementations.
  • the functions of some units are implemented in the form of calling programs by processing elements, and the functions of some units are implemented in the form of integrated circuits.
  • the above apparatus for a network device may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any method performed by the network device provided in the above method embodiments.
  • the processing element can execute part or all of the steps executed by the network device in the first way: calling the program stored in the storage element; or in the second way: combining instructions through the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the network device are executed in the method; of course, part or all of the steps executed by the network device above can also be executed in combination with the first method and the second method.
  • the processing element here is the same as that described above, and can be implemented by a processor, and the function of the processing element can be the same as the function of the processing unit described in FIG. 10.
  • the processing element may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more microprocessors DSP , Or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be realized by a memory, and the function of the storage element may be the same as the function of the storage unit described in FIG. 9.
  • the storage element may be realized by a memory, and the function of the storage element may be the same as the function of the storage unit described in FIG. 9.
  • the storage element can be a single memory or a collective term for multiple memories.
  • the network device shown in FIG. 11 can implement various processes related to the network device in the foregoing method embodiments.
  • the operations and/or functions of each module in the network device shown in FIG. 11 are used to implement the corresponding processes in the foregoing method embodiments.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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

Abstract

Procédé et appareil de communication. Le procédé fait appel aux étapes suivantes : un dispositif terminal reçoit, en provenance d'un dispositif de réseau, des informations de planification d'au moins une première transmission de liaison montante ; le dispositif terminal peut déterminer, selon les informations de planification, si une durée d'intervalle entre une position de début de domaine temporel d'un premier cycle de planification et une position de fin de domaine temporel de la dernière transmission de liaison montante du cycle de planification précédent est supérieure ou égale à un premier seuil de durée ; lorsque le résultat de la détermination est oui, le dispositif terminal détermine, selon des informations de ressource dans le domaine fréquentiel de la transmission de liaison montante planifiée dans le premier cycle de planification, des paramètres de transmission de la transmission de liaison montante dans le premier cycle de planification, les paramètres de transmission comprenant au moins l'une d'une fréquence centrale et d'une fréquence d'échantillonnage de données, de manière à envoyer, dans le premier cycle de planification, la transmission de liaison montante au moyen des paramètres de transmission. Le procédé est utilisé pour faire en sorte que le dispositif terminal détermine, selon des informations de ressource temps-fréquence de transmission de liaison montante dans le cycle de planification, les paramètres de transmission, évite d'envoyer la transmission de liaison montante au moyen des paramètres de transmission d'une BWP activée, ce qui facilite l'économie de la consommation d'énergie du dispositif terminal.
PCT/CN2020/140977 2020-02-29 2020-12-29 Procédé et appareil de communication WO2021169579A1 (fr)

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