WO2021035611A1 - Procédé de demande de ressource et dispositif de communication - Google Patents

Procédé de demande de ressource et dispositif de communication Download PDF

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Publication number
WO2021035611A1
WO2021035611A1 PCT/CN2019/103279 CN2019103279W WO2021035611A1 WO 2021035611 A1 WO2021035611 A1 WO 2021035611A1 CN 2019103279 W CN2019103279 W CN 2019103279W WO 2021035611 A1 WO2021035611 A1 WO 2021035611A1
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WO
WIPO (PCT)
Prior art keywords
time domain
domain resource
resource
terminal device
offset value
Prior art date
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PCT/CN2019/103279
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English (en)
Chinese (zh)
Inventor
郑娟
李超君
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/103279 priority Critical patent/WO2021035611A1/fr
Priority to CN201980099678.0A priority patent/CN114287156A/zh
Publication of WO2021035611A1 publication Critical patent/WO2021035611A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communications, and more specifically, to a method and communication device for resource request.
  • Machine-type communication is one of the foundations of the Internet of Everything.
  • MTC Machine-type communication
  • the longer the standby time of the machine the longer the machine can be used, which is equivalent to user use
  • a terminal device when a terminal device has a data transmission requirement, it can send a scheduling request (scheduling request, SR) to the network device on a pre-configured or predefined resource. After the terminal device sends the SR, it will immediately enter the active (Active) state. When the terminal device is in the active state, it will always detect the downlink control information (DCI).
  • the DCI includes resource information of transmission data allocated to the terminal device and the like.
  • the network device may miss the SR of the terminal device, or even if the network device receives the SR, it may not immediately send DCI to the terminal device, or it may not send DCI to the terminal device. .
  • This application provides a method and communication device for resource request.
  • the terminal device After the terminal device sends the resource request, it will not immediately start to detect that the network device sends control information (such as DCI) in response to the resource request, but first detects the instruction information sent by the network device, and determines whether it needs to start detection according to the instructions of the instruction information. Control information sent by the network device. The length of time for the terminal device to detect control information can be reduced, the power consumption of the terminal device can be saved, the service life of the terminal device can be increased, and the user experience can be improved.
  • control information such as DCI
  • a method for requesting resources is provided.
  • the execution subject of the method can be either a terminal device or a chip applied to the terminal device.
  • the method includes: the terminal device sends a resource request on a first time domain resource, the resource request is used to request a data transmission resource; the terminal device receives indication information on a second time domain resource, The indication information is used to instruct the terminal device to detect DCI on the third time domain resource, the DCI is used to respond to the resource request, or the indication information is used to indicate that the terminal device does not detect DCI on the third time time domain resource, The DCI is used to respond to the resource request.
  • the terminal device after the terminal device sends the resource request on the first time domain resource, it will not immediately start to detect the DCI sent by the network device in response to the resource request, but on the second time domain resource.
  • the received indication information determines whether it is necessary to detect the DCI sent by the network device on the third time domain resource according to the indication of the indication information.
  • the terminal device In the time interval between the first time domain resource and the second time domain resource and the time interval between the second time domain resource and the third time domain resource, the terminal device does not need to detect the DCI sent by the network device, which can save the terminal
  • the power consumption of the equipment increases the service life of the terminal equipment and improves the user experience.
  • the indication information is used to indicate a third time domain resource that carries DCI, and the DCI is used to schedule the data transmission resource; or, the indication information is used to indicate a fourth time domain resource ,
  • the fourth time domain resource does not carry the DCI used to schedule the data transmission resource.
  • the indication information only needs to indicate the third time domain resource or the fourth time domain resource, and when the indication information indicates the third time domain resource, the terminal device detects the DCI sent by the network device on the third time domain resource. When the indication information indicates the fourth time domain resource, the terminal device does not detect the DCI sent by the network device on the fourth time domain resource.
  • the complexity of the indication information can be reduced, the overhead of the indication information can be reduced, and resources can be saved.
  • the third time domain resource and the fourth time domain resource are predefined or pre-configured.
  • the indication information is carried by the first signal, or the indication information is transmitted by the control channel.
  • the first signal may be a DMRS, or may be a CSI-RS, or may also be a phase tracking reference PT-RS.
  • the first signal may be generated by a sequence, and the sequence may be a ZC sequence, a CAZAC sequence, a phase control sequence, an m sequence, a Gold sequence, an M sequence, a GMW sequence, and a kasami sequence. , Bent sequence, Harder code sequence, DFT sequence, etc.
  • the presence or absence of the first signal itself may also be used to indicate the third time domain resource or the fourth time domain resource.
  • the type and/or number of the first signal may be predefined or configured by signaling.
  • the terminal device receiving the indication information on the second time domain resource includes: the terminal device detects the control on the second time domain resource in at least one of the following ways channel:
  • At least one of the first AL, the first DCI format, the first control resource set, and the first search space is predefined or configured by signaling.
  • the terminal device does not need to blindly detect the candidate detection positions corresponding to all possible aggregation levels of the control channel, does not need to blindly detect the various DCI formats that the control channel may correspond to, and does not need to blindly detect the various DCI formats that the control channel may correspond to.
  • the value of the first AL corresponding to the control channel that is predefined or configured by signaling is greater than or equal to 8.
  • the second time domain resource may be predefined or configured by signaling.
  • the method further includes: the terminal device determines the second time domain resource according to the first time domain resource and an offset value, where the offset value is predefined or Configured by signaling.
  • the indication information includes a time domain offset value, and the time domain offset value is used to indicate the time domain position of the third time domain resource; or, the indication information includes the second 3.
  • the time domain location of the time domain resource is determined by the indication information or the time domain offset value is used to flexibly determine the time domain position of the third time domain resource.
  • the time domain location of the third time domain resource can be flexibly set. Improve the flexibility of communication.
  • the time domain offset value includes:
  • At least one of the first time domain offset value, the second time domain offset value, and the third time domain offset value is selected from the first time domain offset value, the second time domain offset value, and the third time domain offset value
  • the first time domain offset value is an offset value of the first time domain resource and the third time domain resource in the time domain
  • the second time domain offset value is an offset value of the second time domain resource and the third time domain resource in the time domain
  • the third time domain offset value is the offset value of the fifth time domain resource and the third time domain resource in the time domain, and the fifth time domain resource is located behind the second time domain resource in the time domain and is located in the Before the third time domain resource, the offset value between the fifth time domain resource and the second time domain resource, and/or the offset value between the fifth time domain resource and the first time domain resource Pre-defined or configured by signaling.
  • the first time domain offset value, the second time domain offset value, the third time domain offset value, the difference between the first time domain resource and the second time domain resource can use the number of DRX cycles To represent.
  • the time domain offset value is used by the terminal device to determine the third time domain resource or The fourth time domain resource.
  • the signaling overhead for indicating the time domain offset value can be reduced, and the transmission reliability of the indication information can be ensured.
  • the indication information is included in the first information, and the first information is used to trigger the terminal device to turn on the control information detection function or not to turn on the control information detection in the discontinuous reception DRX state
  • the function, and/or, the first information is used to trigger the terminal device to stop the detection of control information or not to stop the detection of control information in the state of discontinuous reception of DRX.
  • the terminal device can determine whether the PDCCH detection function needs to be turned on in the next DRX state, and whether to turn on the uplink scheduling permission detection function, and further can determine whether it is in the first DRX state.
  • Three time domain resources need to detect control information. It can save the overhead of the indication information, reduce the number of control channels that the terminal device needs to detect, and thereby reduce the power consumption of the terminal device.
  • the first information may include WUS, PoSS, or GTS signals.
  • the method further includes: the terminal device receives trigger information, where the trigger information is used to instruct the terminal device to determine whether to detect the DCI according to the instruction information.
  • the terminal device receives trigger information, where the trigger information is used to instruct the terminal device to determine whether to detect the DCI according to the instruction information.
  • a method for requesting resources is provided.
  • the execution subject of the method can be either a network device or a chip applied to the network device.
  • the method includes: the network device receives a resource request from a terminal device on a first time domain resource, the resource request is used to request data transmission resources; the network device is on a second time domain resource Upward sending instruction information to the terminal device, the instruction information is used to indicate the third time domain resource that carries the DCI, the DCI is used to schedule the data transmission resource, or the instruction information is used to indicate the fourth time domain resource, the first Fourth, the DCI used to schedule the data transmission resource is not carried on the time domain resource.
  • the network device after receiving the resource request sent by the terminal device on the first time domain resource, the network device will not immediately instruct the terminal device to detect the DCI in response to the resource request, but in the second time domain resource.
  • the indication information is sent to the terminal device on the time domain resource, and the indication information is used to indicate whether the terminal device needs to detect the DCI sent by the network device on the third time domain resource.
  • the terminal device does not need to detect DCI, which can save the power of the terminal device. Consumption, increase the service life of terminal equipment, and improve user experience.
  • the indication information is used to instruct the terminal device to detect DCI on the third time domain resource, the DCI is used to respond to the resource request, or the indication information is used to indicate the terminal device The DCI is not detected on the third time time domain resource, and the DCI is used to respond to the resource request.
  • the indication information is carried by the first signal, or the indication information is transmitted by the control channel.
  • the network device sending instruction information to the terminal device on the second time domain resource includes: the network device uses at least one of the following methods on the second time domain resource A method for sending a control channel to the terminal device;
  • At least one of the first AL, the first DCI format, the first control resource set, and the first search space is predefined or configured by signaling.
  • the value of the first AL corresponding to the control channel that is predefined or configured by signaling is greater than or equal to 8.
  • the method further includes: the network device determines the second time domain resource according to the first time domain resource and an offset value, where the offset value is predefined or Configured by signaling.
  • the indication information includes a time domain offset value, and the time domain offset value is used to indicate the time domain position of the third time domain resource; or, the indication information includes the second 3. The time domain location of the time domain resource.
  • the time domain offset value includes:
  • At least one of the first time domain offset value, the second time domain offset value, and the third time domain offset value is selected from the first time domain offset value, the second time domain offset value, and the third time domain offset value
  • the first time domain offset value is an offset value of the first time domain resource and the third time domain resource in the time domain
  • the second time domain offset value is an offset value of the second time domain resource and the third time domain resource in the time domain
  • the third time domain offset value is the offset value of the fifth time domain resource and the third time domain resource in the time domain, and the fifth time domain resource is located behind the second time domain resource in the time domain and is located in the Before the third time domain resource, the offset value between the fifth time domain resource and the second time domain resource, and/or, the offset value between the fifth time domain resource and the first time domain resource Pre-defined or configured by signaling.
  • the first time domain offset value, the second time domain offset value, the third time domain offset value, the difference between the first time domain resource and the second time domain resource can use the number of DRX cycles To represent.
  • the first time domain offset value, the second time domain offset value, the third time domain offset value, the difference between the first time domain resource and the second time domain resource can use the number of DRX cycles To represent.
  • the indication information is included in the first information
  • the first information is used to trigger the terminal device to turn on the control information detection function or not to turn on the control information detection in the discontinuous reception DRX state
  • the function, and/or, the first information is used to trigger the terminal device to stop the detection of control information or not to stop the detection of control information in the state of discontinuous reception of DRX.
  • the first information may include WUS, PoSS, or GTS signals.
  • the time domain offset value is used by the terminal device to determine the third time domain resource.
  • the method further includes: the network device sends trigger information to the terminal device, where the trigger information is used to instruct the terminal device to determine whether to detect the DCI according to the instruction information.
  • the time domain offset value is used by the terminal device to determine the third time domain resource or The fourth time domain resource.
  • the signaling overhead for indicating the time domain offset value can be reduced, and the transmission reliability of the indication information can be ensured.
  • a communication device which includes a unit for executing the steps in the above first aspect or any possible implementation of the first aspect.
  • a communication device in a fourth aspect, includes a unit for executing each step in the above second aspect or any possible implementation manner of the second aspect.
  • a communication device in a fifth aspect, includes at least one processor and a memory, and the at least one processor is configured to execute the above first aspect or the method in any possible implementation of the first aspect.
  • a communication device in a sixth aspect, includes at least one processor and a memory, and the at least one processor is configured to execute the above second aspect or any possible implementation of the second aspect.
  • a communication device which includes at least one processor and an interface circuit, and the at least one processor is configured to execute the above first aspect or the method in any possible implementation manner of the first aspect.
  • a communication device in an eighth aspect, includes at least one processor and an interface circuit, and the at least one processor is configured to execute the above second aspect or any possible implementation of the second aspect.
  • a terminal device in a ninth aspect, includes the communication device provided in the third aspect, or the terminal device includes the communication device provided in the fifth aspect, or the terminal device includes the communication device provided in the seventh aspect. ⁇ Communication device.
  • a network device in a tenth aspect, includes the communication device provided in the foregoing fourth aspect, or the terminal device includes the communication device provided in the foregoing sixth aspect, or the terminal device includes the foregoing eighth aspect ⁇ Communication device.
  • a computer program product includes a computer program.
  • the computer program is executed by a processor, the computer program is used to execute the method in the first aspect or any possible implementation of the first aspect , Or execute the method in the second aspect or any possible implementation of the second aspect.
  • a computer-readable storage medium stores a computer program, and when the computer program is executed, it is used to execute the first aspect or any possible implementation manner of the first aspect Or execute the method in the second aspect or any possible implementation of the second aspect.
  • a communication system in a thirteenth aspect, includes the aforementioned terminal device and network device.
  • a chip in a fourteenth aspect, includes: a processor, configured to call and run a computer program from a memory, so that a communication device installed with the chip executes the first aspect or any possible aspect of the first aspect The method in the implementation manner, or the method in the second aspect or any possible implementation manner of the second aspect is executed.
  • the terminal device after the terminal device sends the resource request, it does not immediately start to detect that the network device sends a DCI in response to the resource request, but first detects the instruction information sent by the network device, and according to the instruction information Indicate whether it is necessary to start detecting control information sent by the network device.
  • the length of time for the terminal device to detect control information can be reduced, the power consumption of the terminal device can be saved, the service life of the terminal device can be increased, and the user experience can be improved.
  • FIG. 1 is a schematic diagram of an example of the architecture of a mobile communication system applicable to an embodiment of the present application.
  • Fig. 2 is a schematic interaction diagram of an example of a resource request method provided by an embodiment of the present application.
  • Fig. 3 is a schematic interaction diagram of another example of a resource request method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of an example of multiple second time domain resources provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another example of multiple second time domain resources provided by an embodiment of the present application.
  • FIG. 6 shows a schematic diagram of an example of a first time domain resource, a second time domain resource, a third time domain resource, and a fifth time domain resource provided by an embodiment of this application.
  • FIG. 7 is a schematic interaction diagram of another example of a resource request method provided by an embodiment of the present application.
  • FIG. 8 is a schematic interaction diagram of another example of a resource request method provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of another example of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of another example of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of another example of a communication device provided by an embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of another example of a terminal device according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G 5th Generation
  • 5NR New Radio
  • the terminal equipment in the embodiments of this application may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), and wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (Public Land Mobile Network, PLMN) Terminal equipment, etc., which are not limited in the embodiment of the present application.
  • PLMN Public Land Mobile Network
  • the network device in the embodiment of the application may be a device used to communicate with terminal devices.
  • the network device may be a Global System of Mobile Communication (GSM) system or Code Division Multiple Access (CDMA)
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • BTS Base Transceiver Station
  • BTS base station
  • NodeB, NB base station
  • WCDMA Wideband Code Division Multiple Access
  • Evolutional Base Station evolved base station
  • NodeB eNB or eNodeB
  • it can also be a wireless controller in the cloud radio access network (Cloud Radio Access Network, CRAN) scenario
  • the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and the future
  • the network equipment in the 5G network, the network equipment in the future evolved PLMN network, or the network equipment in other types of communication systems in the future, etc., are not limited in the embodiment of the present application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the 5G mobile communication system is committed to supporting higher system performance, supporting multiple service types, different deployment scenarios, and a wider spectrum range.
  • multiple service types include enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low-latency communications (URLLC), etc.
  • Machine-type communication is one of the foundations of the Internet of Everything.
  • the standby time of a machine (using terminal equipment as an example) is an important aspect of user experience.
  • the standby time of a terminal device is The longer, the longer the terminal equipment can be used, the lower the cost equivalent to the user’s use of the terminal equipment.
  • some machine communication scenarios such as water meters installed in the basement, they are not used.
  • a terminal device when it has uplink data transmission requirements, it can send an SR to the network device on a pre-configured or predefined resource. After receiving the SR sent by the terminal device, the network device can decide when to schedule the uplink for the terminal device. Transmission resources, so that the terminal device can use the scheduled uplink transmission resources to send uplink data. Since the network device needs to serve multiple terminal devices, in general, the network device can determine the terminal device to be scheduled for data transmission according to various factors such as the current service load situation and the scheduling priority corresponding to the transmission data waiting to be scheduled. For example, if the transmission data to be scheduled is sensitive to delay, the corresponding scheduling priority is generally higher.
  • the terminal device may not receive the DCI sent by the network device until a period of time later, and the DCI includes the configuration information of the uplink transmission resource scheduled by the network device for the terminal device.
  • the terminal device since the terminal device cannot know when the network device sends the DCI to schedule its own data transmission, the terminal device immediately enters the Active state after sending the SR. When the terminal device is in the active state, it will always detect the DCI. In some cases, the network device may miss the SR of the terminal device. As a result, although the terminal device constantly detects the DCI, it cannot be detected all the time, resulting in additional power consumption. In order to prevent this from happening, the terminal device will start a timer after sending the SR.
  • the terminal device If the terminal device does not detect the DCI for scheduling its own uplink data within the timer (for example, uplink grant, UL grant), it will re-send the SR on the pre-configured resource. In addition, in addition to the above timer, after the terminal device sends the SR, it will also start a SR maximum transmission counter (Counter), if the terminal device sends When the SR reaches the maximum number of times, and the network device still does not receive a response to the SR (for example, DCI for scheduling uplink data transmission), the terminal device will use a random access channel (RACH) to re-initiate random access.
  • SR maximum transmission counter Counter
  • the terminal device After the terminal device sends the SR, it will always be in the state of detecting the DCI, and when the network device will respond to the SR (that is, send the control information for scheduling the terminal device's uplink data) is uncertain, which causes the power consumption of the terminal device. This in turn affects the service life of terminal equipment and user experience. Especially in the mMTC scenario, since the number of terminal devices is relatively large and each terminal device is not sensitive to the data transmission delay, it is more likely that the network device will not respond immediately after the terminal device sends the SR. Indeed increase the power consumption of the terminal equipment and affect the service life of the terminal equipment.
  • this application provides a resource request method.
  • the terminal device After the terminal device sends the resource request, it does not immediately start to detect that the network device sends control information (such as DCI) in response to the resource request, but first detects the network device
  • the sent instruction information determines whether it is necessary to start detecting the control information sent by the network device according to the instruction of the instruction information. The length of time for the terminal device to detect control information can be reduced, the power consumption of the terminal device can be saved, the service life of the terminal device can be increased, and the user experience can be improved.
  • FIG. 1 is a schematic diagram of a communication system 100 applicable to the resource request method of an embodiment of the present application.
  • the communication system 100 includes four communication devices, for example, a network device 110 and terminal devices 121 to 123.
  • the terminal device and the terminal device can transmit data through a vehicle-to-everything (V2X) or device-to-device (D2D) communication method.
  • V2X vehicle-to-everything
  • D2D device-to-device
  • the link between the terminal device and the terminal device can be called a side link.
  • Data communication may be performed between the network device 110 and at least one of the terminal devices 121 to 123.
  • the resources in the embodiment of this application can be used
  • the requested method makes a transmission resource request.
  • the transmission resource request may also be performed through the resource request method in the embodiment of the present application.
  • the communication system shown in FIG. 1 may also include more network nodes, such as terminal devices or network devices, and the network devices or terminal devices included in the communication system shown in FIG. 1 may be the aforementioned various forms of networks.
  • Equipment or terminal equipment The embodiments of the present application are not shown one by one in the figure.
  • FIG. 2 is a schematic interaction diagram of a method 200 for requesting resources according to an embodiment of the present application.
  • the method 200 can be applied to the scenario shown in FIG. 1, of course. It can also be applied in other communication scenarios, and the embodiment of the present application does not limit it here.
  • a terminal device and a network device are taken as an example of an execution subject of the execution method to describe the method.
  • the execution subject of the execution method may also be a chip, a chip system, or a processor applied to a terminal device and a network device.
  • the method 200 shown in FIG. 2 may include S210 to S230. Each step in the method 200 will be described in detail below with reference to FIG. 2.
  • the terminal device sends a resource request to the network device on the first time domain resource, where the resource request is used to request data transmission resources.
  • the network device receives the resource request on the first time domain resource.
  • the network device sends indication information to the terminal device on the second time domain resource.
  • the indication information is used to indicate the third time domain resource, and the third time domain resource carries the DCI used to schedule the data transmission resource; or, the indication information is used to indicate the fourth time domain resource, the fourth time domain resource
  • the DCI used to schedule the data transmission resource is not carried on it; or, the indication information is used to instruct the terminal device to detect or not to detect the DCI in response to the resource request on the third time domain resource.
  • the terminal device receives the indication information on the second time domain resource, and according to the indication information, determines to detect the DCI on the third time domain resource; or determines not to detect the DCI on the third time domain resource; or It is determined not to detect the DCI on the fourth time domain resource.
  • the terminal device determining to detect the DCI on the third time domain resource may include: the terminal device detects the DCI on the third time domain resource, or, or the terminal device obtains the DCI from the third time domain resource. Start detecting DCI at the starting position (starting time domain resource).
  • the terminal device detecting DCI on the third time domain resource can be understood as the terminal device detecting DCI on a period of time domain resources (such as time slot n) occupied by the third time domain resource, that is, in a period of time (such as time slot n). ) Detect DCI.
  • the terminal device starts to detect the DCI from the time domain resource starting from the third time domain resource.
  • the terminal device starts to detect the DCI at the start position of the third time domain resource, that is, the start time of the terminal device to detect the DCI is defined.
  • the duration of the terminal device detecting the DCI may be predefined or pre-configured, or the end time of the terminal device detecting the DCI may be predefined or pre-configured.
  • the duration of the terminal device detecting DCI can be expressed in absolute time length (for example, in milliseconds (ms), microseconds ( ⁇ s), etc.), or can be expressed in time domain resource units (for example, time slots, subframes, Symbols, etc.).
  • time domain resource units for example, time slots, subframes, Symbols, etc.
  • the number of time domain resource units may be pre-defined or pre-configured.
  • the terminal device detecting the end time of DCI can be represented by an absolute time (for example, in milliseconds (ms), microseconds ( ⁇ s), etc.), or can also be characterized by time domain resources corresponding to the end time of detecting DCI .
  • the time domain resource corresponding to the end time of detecting the DCI may be pre-defined or pre-configured. For example, if the resource request is sent periodically, assuming that the sending period of the resource request is 3 time slots, and the first time domain resource corresponds to the Nth time slot, the time domain resource corresponding to the end time of detecting DCI can be the next time
  • the time slot before the resource request (the N+3th time slot) is sent for example, may be the N+2th time slot.
  • the terminal device determining not to detect the DCI on the third time domain resource, or determining not to detect the DCI on the fourth time domain resource may include: the terminal device is in the third time domain DCI is not detected on the resource or the fourth time domain resource, or the terminal device starts from the start position of the third time domain resource or the fourth time domain resource, and does not detect DCI.
  • the terminal device not detecting DCI on the third time domain resource can be understood as the terminal device not detecting DCI on a period of time domain resources (for example, time slot n) occupied by the third time domain resource, that is, during a period of time (for example, time slot n). Slot n) does not detect DCI.
  • the terminal device starts from the start position of the third time domain resource and does not detect DCI can be understood as: the terminal device starts from the start position of the third time domain resource and does not detect DCI, that is, the start time when the terminal device does not detect DCI is defined.
  • the duration of time that the terminal device does not detect DCI may be predefined or pre-configured, or the end time when the terminal device does not detect DCI may be predefined or pre-configured.
  • the terminal device may send a resource request to the network device on the first time domain resource, and the resource request may be used to request uplink data
  • the transmission resource or the transmission resource for requesting side-line data may be referred to as a sidelink (SL).
  • the sideline data may be data sent by the terminal device to another terminal device on the sideline link.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • the terminal device may be a terminal device in V2X or D2D.
  • the resource request may be, for example, an SR or a buffer status report (buffer status report, BSR), or may also be other signaling or information for requesting transmission resources. This application does not limit the specific form of the resource request.
  • the time domain position occupied by the first time domain resource may be predefined or configured by signaling.
  • the resource request may include at least one of the following: the size of the data transmitted by the terminal device (for example, sideline data or uplink data), the time-frequency resource used when transmitting the data, the modulation mode, and the coding mode.
  • the terminal device may send the resource request through a physical uplink channel.
  • the physical uplink channel may be, for example, a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).
  • the network device receives the resource request on the first time domain resource.
  • the network device can determine whether to allocate data transmission resources for the terminal device, how much resources to allocate for the terminal device, and when to allocate the data transmission resource for the terminal device according to the resource request.
  • the terminal equipment allocates data transmission resources and so on.
  • the network device can notify the terminal device whether to allocate data transmission resources for the terminal device. Therefore, the network device sends the indication information to the terminal device on the second time domain resource.
  • the indication information is used to instruct the terminal device to detect the control information in response to the resource request on the third time domain resource (the DCI is taken as an example below), or to indicate that the terminal device is in the third time domain. Three time domain resources do not detect the DCI in response to the resource request.
  • the indication information is used to indicate the third time domain resource that carries the DCI, and the DCI is used to schedule the data transmission resource, or the indication information is used to indicate the fourth time domain resource, the first Fourth, the DCI used to schedule the data transmission resource is not carried on the time domain resource.
  • the third time domain resource may be a predefined or preconfigured time domain resource that carries the DCI
  • the fourth time domain resource may be a predefined or preconfigured time domain resource that does not carry the DCI. That is, the indication information may only indicate the third time domain resource or the fourth time domain resource to the terminal device. After receiving the indication information, the terminal device determines the third time domain resource or the fourth time domain resource, and may detect the DCI on the third time domain resource or not detect the DCI on the fourth time domain resource.
  • the terminal device receives the indication information on the second time domain resource.
  • the control information may be understood as an uplink scheduling grant (UL grant) of the network device in response to the resource request.
  • the control information may be DCI.
  • the control information may include: whether the terminal device is allowed to transmit data, the time and/or frequency resources used by the terminal device when transmitting data, the modulation method used by the terminal device when transmitting data, the coding rate used by the terminal device when transmitting data, and the terminal device One or more of the power information when transmitting data.
  • the first time domain resource is earlier than the second time domain resource in the time domain
  • the second time domain resource is earlier than the third time domain resource in the time domain.
  • the control information may also be other information or signaling used to indicate data transmission resources to the terminal device. The embodiments of the application are not limited here.
  • the terminal device receives the indication information on the second time domain resource, and according to the indication information, determines whether to detect or not to detect the DCI on the third time domain resource. Alternatively, the terminal device determines the third time domain resource or the fourth time domain resource according to the instruction information, and then detects the DCI on the third time domain resource, or does not detect the DCI on the fourth time domain resource.
  • the terminal device When the terminal device receives the indication information on the second time domain resource, it can be understood that the terminal device has acquired or received the indication information through detection on the second time domain resource. For example, if the received indication information indicates that the terminal device detects the DCI on the third time domain resource, the terminal device will start to detect the DCI at the start time (moment) of the third time domain resource. If the received indication information indicates that the terminal device does not detect the DCI on the third time domain resource, the terminal device will not detect the DCI on the third time domain resource. Or, if the indication information is used to indicate the third time domain resource or the fourth time domain resource, the indication information detected by the terminal device may detect the DCI on the third time domain resource or not on the fourth time domain resource. Check the DCI.
  • the terminal device when the terminal device receives the indication information on the second time domain resource, it can also be understood that the terminal device detects the indication information on the second time domain resource, but the detection result includes the indication information is detected or the indication information is not detected. .
  • the terminal device if the terminal device detects the indication information on the second time domain resource, the terminal device will start to detect DCI at the start time (moment) of the third time domain resource, or not detect DCI on the fourth time domain resource. If the terminal device does not detect the indication information on the second time domain resource, the terminal device will not detect the DCI on the third time domain resource.
  • the terminal device detecting the DCI on the third time domain resource may be understood as the terminal device acquiring or receiving the DCI through detection on the third time domain resource.
  • the terminal device detecting the DCI on the third time domain resource may be understood as the terminal device detecting the DCI on the third time domain resource, but the detection result includes detecting the DCI or not detecting the DCI.
  • the terminal device after the terminal device sends the resource request on the first time domain resource, it will not immediately start to detect the DCI sent by the network device in response to the resource request, but will receive it on the second time domain resource. According to the indication information of the indication information, it is determined whether it is necessary to detect the DCI sent by the network device on the third time domain resource. In the time interval between the first time domain resource and the second time domain resource and the time interval between the second time domain resource and the third time domain resource, the terminal device does not need to detect the DCI sent by the network device, which can save the terminal The power consumption of the equipment increases the service life of the terminal equipment and improves the user experience.
  • the first time domain resource, the second time domain resource, the third time domain resource, and the fourth time domain resource can be understood as four time periods, four time windows or four time units.
  • the time length of the first time domain resource, the second time domain resource, the third time domain resource, or the fourth time domain resource may be one or more subframes; or, it may be one or more time slots; or, it may be It is one or more symbols; or it can also be an absolute length of time (for example, the unit is microseconds ( ⁇ s), milliseconds (ms), etc.).
  • Symbols are also called time-domain symbols, which can be orthogonal frequency division multiplexing (OFDM) symbols, or single carrier frequency division multiple access (SC-FDMA) symbols, where SC-FDMA is also called orthogonal frequency division multiplexing with transform precoding (OFDM with TP).
  • OFDM orthogonal frequency division multiplexing
  • SC-FDMA single carrier frequency division multiple access
  • the length of the first time domain resource, the length of the second time domain resource, the length of the third time domain resource, and the length of the third time domain resource may be different or the same.
  • the first time domain resource is earlier than the second time domain resource in the time domain
  • the second time domain resource is earlier than the third time domain resource in the time domain.
  • time interval between the first time domain resource and the second time domain resource, and there may also be a time interval between the second time domain resource and the third time domain resource.
  • the third time domain resource and the fourth time domain resource may be the same time domain resource, or the third time domain resource and the fourth time domain resource may also be different time domain resources.
  • the fourth time domain resource is later than the second time domain resource in the time domain.
  • the time interval can be represented by the number of symbols, or it can be an absolute time length, which is not specifically limited.
  • the information transmission propagation delay between the terminal device and the network device is not reflected, and the same time unit is used for description.
  • the terminal device sends information to the network device on the first time domain resource, and the network device receives the information sent by the terminal device on the first time domain resource.
  • the starting position of the first time domain resource on the side of the network device and the terminal device may be different.
  • the signaling configuration can be understood as configured by high-level or physical layer signaling.
  • the high-level signaling may include, for example, radio resource control (radio resource control, RRC), medium access control (medium access control, MAC) control element (CE), and radio link control (radio link control, RLC). Signaling etc.
  • the physical layer signaling may include, for example, downlink control information (DCI), signaling transmitted through a downlink physical layer channel, and the like.
  • the physical downlink channel may be, for example, a physical downlink control channel (PDCCH) or a physical downlink. Shared channel (physical downlink shared channel, PDSCH), etc.
  • the indication information on the second time domain resource may be sent to the terminal device in a signal bearing manner, or the indication information on the second time domain resource may also be sent to the terminal device through a control channel.
  • S220 in the method 200 the network device sends the instruction information to the terminal device on the second time domain resource, including S221.
  • the network device sends a first signal or a control channel to the terminal device on the second time domain resource, where the indication information is carried by the first signal, or the indication information is transmitted by the control channel.
  • the terminal device receives the indication information on the second time domain resource, including S231.
  • the terminal device receives the first signal on the second time domain resource or detects the control channel to determine whether to detect DCI on the third time domain resource. Or the DCI is not detected on the fourth time domain resource.
  • the instruction information may be carried and sent to the terminal device through a control channel, or the instruction information may be sent to the terminal device in a manner of carrying the first signal.
  • the first signal is generated by the sequence.
  • the network device sends the instruction information to the terminal device on the second time domain resource, it may send the first signal to the terminal device on the second time domain resource or send the instruction information to the terminal device on the control channel.
  • the indication information is carried by the first signal, that is, the indication information is sent to the terminal device in the form of the first signal.
  • the first signal can be generated by a sequence, which can be a ZC sequence, a constant envelope zero auto-correlation (CAZAC), a phase control sequence, an m sequence, a Gold sequence, an M sequence, and a GMW sequence , Kasami sequence, Bent sequence, Hadder code sequence, discrete Fourier transform (DFT) sequence, etc.
  • the specific form of the sequence for generating the first signal is not limited in this application.
  • the first signal may be predefined or configured by signaling.
  • the first signal may be a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), or a phase tracking reference signal (phase tracking reference signal).
  • DMRS demodulation reference signal
  • CSI-RS channel state information reference signal
  • phase tracking reference signal phase tracking reference signal
  • PT-RS phase tracking reference signal
  • the specific form of the first signal is not limited in this application.
  • a possible implementation is: if the terminal device detects (receives) a certain type of signal (such as the first signal) on the second time domain resource, this type of signal is predefined or determined by Signaling configuration, this type of signal is used to instruct the terminal device not to detect the DCI in response to the resource request on the third time domain resource, then the terminal device can determine that it is in the third time domain based on the detected signal of this type DCI is not detected on the resource. If the terminal device detects another type of signal on the second time domain resource, this type of signal is also predefined or configured by signaling. This type of signal is used to indicate that the terminal device is on the third time domain resource Check DCI.
  • a certain type of signal such as the first signal
  • the terminal device can determine to detect the DCI on the third time domain resource according to the detected signal of this type. That is, the different types of signals implicitly indicate the different content indicated by the indication information.
  • multiple types of signals can be predefined or configured, and the multiple types of signals can be divided into two groups. One group includes signals used to instruct terminal equipment to detect DCI on the third time domain resource, and the other group includes signals Used to instruct the device not to detect DCI on the third time domain resource.
  • the terminal equipment and the network equipment know in advance which signals are used to indicate not to detect DCI and which signals are used to indicate to detect DCI.
  • the network device sends the instruction information, it can determine which type of signal to send to the terminal device according to the decision on the resource request of the terminal device.
  • the type of the first signal is used to indicate whether the terminal device detects the DCI in response to the resource request on the third time domain resource.
  • Different types of signals can be understood as different signals.
  • the first signal can be generated by a sequence
  • different types of signals can also be understood as: different sequences obtained by different cyclic shifts of the same sequence, and the signals generated by the different sequences can be It is understood as a different type of signal.
  • the same sequence is processed by different orthogonal masks (orthogonal cover codes, OCC) to obtain different sequences, and the signals generated by the different sequences can be understood as different types of signals.
  • signals generated from sequences occupying different time and/or frequency resources can be understood as signals of different types.
  • different types of signals can also be a combination of the above situations, or other forms, which are not specifically limited in the present application.
  • the aforementioned signal type may also implicitly indicate the third time domain resource or the fourth time domain resource.
  • the type of the first signal may be used to indicate the third time domain resource or the fourth time domain resource. If the type of the first signal is used to indicate the third time domain resource, the terminal device determines not to detect DCI on the third time domain resource. If the type of the first signal is used to indicate the fourth time domain resource, the terminal device determines not to detect DCI on the fourth time domain resource.
  • the terminal device can determine whether the network device instructs the terminal device to detect DCI on the third time domain resource by detecting the presence or absence of the first signal on the second time domain resource. That is, the network device can instruct the terminal device whether to detect DCI on the third time domain resource by sending the first signal on the second time domain resource or not sending the first signal. For example, if the terminal device detects (receives) the first signal on the second time domain resource, the terminal device may determine to detect DCI on the third time domain resource. If the terminal device does not detect (do not receive) the first signal on the second time domain resource, the terminal device may determine that DCI is not detected on the third time domain resource. That is, the presence or absence of the first signal itself can be regarded as the content indicated by the indication information.
  • the presence or absence of the first signal itself may also be used to indicate the third time domain resource or the fourth time domain resource. For example, if the terminal device detects (receives) the first signal on the second time domain resource, the terminal device may determine to detect DCI on the third time domain resource. If the terminal device does not detect (receive) the first signal on the second time domain resource, the terminal device does not detect DCI on the fourth time domain resource.
  • the bits transmitted in the control channel can be used to indicate whether DCI needs to be detected on the third time domain resource, or to indicate whether the DCI needs to be detected on the third time domain resource or the fourth time domain.
  • Domain resources For example, a 1-bit field may be used to indicate in the control channel. When the value of the bit is zero, it indicates that the terminal device does not detect DCI on the third time domain resource. If the value of this bit is 1, it instructs the terminal device to detect DCI on the third time domain resource. Or, when the bit value is 0, it means that the terminal device detects DCI on the third time domain resource, and if the bit value is 1, it means that the terminal device does not detect DCI on the third time domain resource.
  • control channel may be a PDCCH or the like.
  • the terminal device may detect the control channel on the second time domain resource to determine whether to detect the DCI on the third time domain resource, or determine not to detect the DCI on the fourth time domain resource.
  • the indication information may also be transmitted through a traffic channel, and the traffic channel may be, for example, PDSCH.
  • the terminal device detecting the control channel can be understood as the terminal device detecting the indication information on the control channel.
  • the meaning of detecting the control channel and detecting the indication information is the same.
  • S231 can also be described as: the terminal device can detect the indication information on the second time domain to determine whether to detect the DCI on the third time domain resource.
  • the network device may use at least one of the following methods to send a control channel to the terminal device on the second time domain resource:
  • At least one of the first AL, the first DCI format, the first control resource set, and the first search space is predefined or configured by signaling
  • the terminal device may use at least one of the following methods to detect the control channel on the second time domain resource:
  • the control channel is detected on the first search space.
  • the aggregation level (AL) corresponding to the control channel may be predefined or configured by signaling.
  • the pre-defined or signaling-configured AL may be the first AL.
  • AL can be understood as the size of the transmission resource used to transmit the control channel (indication information), and defines the size of the time-frequency resource for each detection when the terminal device performs blind detection.
  • AL can be represented by the number of minimum resource units for transmission control channels. For example, assuming that the minimum resource unit for transmitting the control channel is J, and the transmission resource used when transmitting the control channel A is N ⁇ J, then AL may be equal to N.
  • the smallest resource unit for transmitting a control channel can be a control channel element (CCE), and the size of the transmission resource used when transmitting a control channel can be 1 CCE, 2 CCEs, and 4 CCEs. , 8 CCEs, and 16 CCEs, etc.
  • AL can be 1, 2, 4, 8, 16.
  • the network device may send a control channel (that is, send instruction information) to the terminal device at the candidate sending position corresponding to the first AL.
  • the terminal device may detect the control channel (detection indication information) at the candidate detection position (for example, PDCCH candidate) corresponding to the first AL on the second time domain resource.
  • the terminal device does not need to blindly detect the candidate detection positions corresponding to all possible aggregation levels of the control channel, which can reduce the number of blind detection times for the terminal device to detect the indication information, reduce the complexity of the terminal device to detect the indication information, and thereby reduce the terminal device’s performance. Power consumption.
  • the value of the first AL corresponding to the control channel that is predefined or configured by signaling is greater than or equal to 8.
  • the value of the first AL may be 8 or 16.
  • the total resources for the network device to send the control channel are 16 CCEs (the CCE index (index) number is CCE index 0 to CCE index 15), when the value of the first AL is 8, That is, 8 CCEs are used as the granularity of a blind inspection, and 8 CCEs need to be inspected for each blind inspection. That is, when the first AL is equal to 8, the terminal device needs to blindly check twice to determine whether the control channel is transmitted or whether the indication information is transmitted. When the first AL is equal to 16, 16 CCEs need to be detected for each blind check, and the terminal device only needs to check once to determine whether the control channel is transmitted or whether the indication information is transmitted.
  • the terminal device needs to perform blind detection 16 times.
  • the transmission position of the control channel corresponding to each blind detection of the terminal device can be understood as the candidate detection position corresponding to the first AL
  • the candidate detection position can be understood as if the network device has control information (transmitted through the control channel) transmitted to The terminal device transmits one or more corresponding resources in the candidate detection position to the terminal device.
  • One or more corresponding resources in the candidate detection position can be represented by CCE, for example, CCE index, and it can also be in other forms. Specific restrictions. It can be seen that the larger the value of the first AL that is pre-defined or configured by signaling, the number of blind detections used by the terminal device to detect the indication information is smaller, and the power consumption of the terminal device can be further reduced.
  • the minimum value corresponding to the first AL may be greater than the minimum value corresponding to the legacy aggregation level or the backward compatible aggregation level, for example, the legacy aggregation level or the backward compatible aggregation level.
  • the level can be an aggregation level for NR release 15 or NR release 16.
  • the value range of the legacy aggregation level can be 1, 2, 4, 8, 16, that is, the minimum value corresponding to the legacy aggregation level is 1.
  • the first AL The corresponding minimum value can be greater than 1, for example, it can be 8 or 16. It can be understood that the first AL may correspond to one or more values, which is not specifically limited.
  • the frequency domain resource location for transmitting the control channel may be predefined or configured by signaling.
  • the position of the frequency domain resource may be determined by the start position and the end position of the frequency domain resource, or may be determined by the start position of the frequency domain resource in combination with the AL corresponding to the control channel.
  • the position of the frequency domain resource (including the start position and the end position) may be represented by the minimum resource unit index for transmitting the control channel.
  • the minimum resource unit may be a logical transmission resource for transmitting a control channel, and the logical transmission resource may be, for example, a CCE.
  • the minimum resource unit may also be the actual physical resource for the transmission control channel, and the actual physical resource may be, for example, a resource element group (REG) or a resource element group bundle (REG Bundle).
  • REG resource element group
  • REG Bundle resource element group bundle
  • one logical transmission resource may include one or more actual physical resources.
  • one CCE can include 6 REGs.
  • a CCE can include one or more REG bundles.
  • the non-interleaved mapping relationship can also be understood as the centralized mapping relationship. If it is a non-interleaved mapping method, the 6 REGs included in a CCE can be continuous in the frequency domain. If it is an interleaved mapping method, the 6 REGs or multiple REG bundles included in a CCE can be in the frequency domain. Discontinuous.
  • the transmission position of the control channel can be restricted.
  • the starting position of the logical transmission resource corresponding to the control channel can be limited, and the limited number of starting positions can be one or more.
  • the starting position of the transmission resource corresponding to the control channel may be CCE index 0 (CCE index 0).
  • the terminal device can determine the position of the transmission resource of the control channel in combination with the aggregation level AL corresponding to the control channel.
  • the network device may send the control channel (that is, send instruction information) to the terminal device at a predefined or preconfigured frequency domain resource location.
  • the terminal device may detect the control channel (that is, detection indication information) at a predefined or pre-configured frequency domain resource location on the second time domain resource.
  • the control channel that is, detection indication information
  • the terminal device does not need to perform blind detection on all possible frequency domain resource positions, which can reduce the number of blind detection times for the terminal device to detect the control channel (indication information), and reduce the terminal equipment Power consumption.
  • the DCI format (format) corresponding to the control channel may be predefined or configured by signaling.
  • the DCI format can also be understood as the transmission format of the control channel or the format of the control information transmitted by the control channel.
  • the first DCI format predefined or configured by signaling may be DCI format X.
  • the DCI format corresponding to the control channel can be represented by the size of the information bits carried by the control channel. Carrying information bits of different sizes can represent different DCI formats. For example, control channel 1 carries X bits of information, and control channel 2 carries Y bits of information. If X is not equal to Y, it can be considered that the DCI formats of control channel 1 and control channel 2 are different, or X The DCI format corresponding to bit is different from the DCI format corresponding to Y bit.
  • the DCI format corresponding to the control channel is restricted through a pre-configuration or a predefined manner, or the information bits that the control channel can carry are restricted through a pre-configuration or a predefined manner.
  • the network device uses the first DCI format to send the control channel to the terminal device on the second time domain resource.
  • the terminal device only uses the first DCI format to detect the control channel on the second time domain resource. That is, when the terminal device detects the indication information, it does not need to blindly detect various DCI formats that the control channel may correspond to, which reduces the number of blind detections used by the terminal device to detect the indication information, and reduces the power consumption of the terminal device.
  • the first DCI format may be DCI format 1_0 or DCI format 1_1 used to schedule downlink data transmission, and the first DCI format may also be other formats including a fixed control information size.
  • the control information size may be corresponding to the control information Represents the number of bits.
  • control resource set (control resource set, CORESET) corresponding to the control channel may be predefined or configured by signaling.
  • the control resource set can be understood as: certain specific time-frequency resources are used to carry the control channel on the time-frequency resources in the system. These specific time-frequency resources will be notified to the terminal equipment through high-level signaling in advance, so that the terminal equipment can follow-up At a specific detection moment, the control channel is detected on the specific time-frequency resource.
  • the control resource set includes the time-frequency resource information occupied by the network device to send the control channel (such as PDCCH).
  • the network device can configure one or more control resource sets for the terminal device, and the network device can be in any one corresponding to the terminal device.
  • the control channel is sent to the terminal device.
  • the terminal device may receive the control channel sent by the network device on the time-frequency resource indicated by the control resource set.
  • the time-frequency resources of the control resource set are further divided into multiple CCEs.
  • the time position where the control resource set appears can be bound to the time position where the search space set (search space set, SS set) associated with the control resource set appears.
  • the search space set can be understood as the control channel (such as PDCCH) candidate set detected by the terminal device.
  • the terminal device needs to detect M PDCCH candidates, that is, it needs to detect whether there is a PDCCH related to its own data transmission at the M PDCCH candidate positions, then
  • the search space set can be understood as a set of these M PDCCH candidate positions.
  • the predefined or configured control resource set corresponding to the control channel may be the first control resource set.
  • the network device sends the control channel to the terminal device only on the time-frequency resource of the first control resource set on the second time domain resource.
  • the terminal device only needs to detect the control channel on the time-frequency resource of the first control resource set on the second time domain resource.
  • Restricting the control resource set corresponding to the control channel in a pre-configured or pre-defined manner can limit the range in which the terminal device detects the control channel. That is, when the terminal device detects the control channel, it does not need to blindly detect various control resource sets that the control channel may correspond to, but only needs to blindly detect the pre-configured or pre-defined time-frequency resources of the first control resource set. The number of blind detections for the terminal device to detect the indication information is reduced, and the power consumption of the terminal device is reduced.
  • the search space (or search space set) corresponding to the control channel may be predefined or configured by signaling.
  • the search space set can be understood as the control channel candidate set detected by the terminal device. Restricting the search space set (first search space set) corresponding to the control channel in a pre-configured or pre-defined manner can be understood as restricting the time position of the search space set and/or the control channel equipment included in the search space set. Choose a collection. Further, limiting the control channel candidate set included in the search space set may also be understood as limiting the aggregation level corresponding to the control channel included in the search space set or the number of control channel candidates included in the search space set. Since the terminal device needs to determine the control channel by blind detection, the number of control channel candidates included in the search space set can be understood as the number of blind detections required for the terminal device to detect the control channel in the search space set.
  • the search space set (first search space set) corresponding to the control channel is restricted by a pre-configured or predefined manner.
  • the network device only includes candidate positions in the first search space set on the second time domain resource.
  • the control channel is sent to the terminal device.
  • the terminal device detects the control channel only at the candidate positions included in the first search space set on the second time domain resource, instead of detecting the control channel in all possible search space sets of the control channel, which can reduce the terminal
  • the device blindly detects the complexity of the control channel (indication information), thereby reducing the power consumption of the terminal device.
  • the time domain location of the second time domain resource may be pre-configured or predefined.
  • the time domain location of the second time domain resource can be directly pre-configured or pre-defined.
  • the network device may directly pre-configure the time domain location of the second time domain resource.
  • the time offset between the second time domain resource and the first time domain resource can be pre-configured or predefined.
  • the network device may preconfigure the time offset between the first time domain resource and the second time domain resource to enable the terminal device to determine the time domain location of the second time domain resource.
  • the time offset between the first time domain resource and the second time domain resource may not be less than a threshold T.
  • the threshold T may be the difference between the terminal device transmitting the PUSCH and receiving the network device's response to the PUSCH.
  • Time offset The response of the network device to the PUSCH can be expressed as whether the network device correctly receives the data carried in the PUSCH, or it can be expressed as the rescheduling information of the hybrid automatic repeat request (HARQ) process carried by the PUSCH .
  • HARQ hybrid automatic repeat request
  • the time offset value here can be expressed by absolute time length, such as T milliseconds (ms), T microseconds ( ⁇ s), etc., or by time domain resources (such as time slots, subframes, symbols, etc.) ).
  • the network device may send the indication information to the terminal device at multiple different time transmission positions, that is, the number of the second time domain resource.
  • the number can be more than one.
  • the time transmission position of the indication information can be restricted in a pre-configured or predefined manner. For example, after the terminal device sends a resource request, the first time transmission position of the indication information may be pre-configured or predefined. If the indication information can be transmitted on multiple available time domain resources, it may also be pre-configured or pre-defined. Define the number of transmissions of the indication information, and then limit the time transmission position of the indication information.
  • the available time domain resources here can be understood as time domain resources that can be used for downlink transmission, or can also be understood as time domain resources used for indicating information transmission.
  • Multiple available time domain resources ie, multiple second time domain resources
  • FIG. 4 shows an example of a schematic diagram of multiple second time domain resources provided by an embodiment of this application, and FIG. 4 shows a plurality of consecutive available second time domain resources.
  • the multiple available time domain resources may also be discontinuous in time position, that is, there is a time interval between two adjacent times in the multiple second time domain resources, as shown in Figure 5,
  • Figure 5 Shown is an example of a schematic diagram of multiple second time domain resources provided by an embodiment of this application, and FIG. 5 shows a situation where multiple available second time domain resources have time intervals in the time domain.
  • the time transmission position of the indication information is restricted in a pre-configured or pre-defined manner.
  • the terminal device After the terminal device sends a resource request, it can only detect the indication information on one or more pre-configured or predefined second time domain resources, and the terminal device does not use it. Performing blind detection of the indication information at all possible time domain positions can reduce the number of blind detections used by the terminal device to detect the indication information, and reduce the power consumption of the terminal device.
  • the network device needs to process the resource request before sending the instruction information on the second time domain resource. That is, the network equipment needs a certain amount of processing time.
  • the terminal device may not need to detect the indication information related to data transmission Or the control channel, for example, does not need to detect the control channel carrying the uplink grant (UL grant), thereby reducing the power consumption of the terminal device to detect the control channel.
  • the control channel for example, does not need to detect the control channel carrying the uplink grant (UL grant), thereby reducing the power consumption of the terminal device to detect the control channel.
  • the number of the first time domain resource, the third time domain resource, or the fourth time domain resource may also be one or more.
  • the time domain location of the third time domain resource and/or the time domain location of the fourth time domain resource may be pre-configured or predefined.
  • a possible implementation manner is: the time domain position of the third time domain resource and/or the time domain position of the fourth time domain resource can be pre-configured or predefined.
  • the network device may directly preconfigure the time domain location of the third time domain resource.
  • a time domain offset value can be pre-configured or predefined, and the time domain offset value is used by the terminal device to determine the time domain position of the third time domain resource and/or the fourth time domain The time domain location of the resource.
  • the time domain offset value is used by the terminal device to determine the time domain location of the third time domain resource as an example for description. It should be understood that the specific process of determining the time domain position of the fourth time domain resource by the terminal device according to the time domain offset value used to determine the time domain position of the fourth time domain resource is different from how the terminal device determines the third time domain resource. The specific process of time domain location is similar. For a similar manner, reference may be made to the following specific manner for the terminal device to determine the time domain location of the third time domain resource.
  • the indication information may include the time domain offset value, and the time domain offset value is used by the terminal device to determine the time domain location of the third time domain resource.
  • the time offset here can be expressed by absolute time length, such as P milliseconds (ms), M microseconds ( ⁇ s), etc., or through resource requests (such as time slots, subframes, symbols, etc.)
  • the time domain offset value includes: at least one of the first time domain offset value, the second time domain offset value, and the third time domain offset value.
  • the first time domain offset value may be an offset value of the first time domain resource and the third time domain resource in the time domain
  • the second time domain offset value may be an offset value of the second time domain resource and the third time domain resource in the time domain;
  • the third time domain offset value may be an offset value of the fifth time domain resource and the third time domain resource in the time domain, where the fifth time domain resource is located behind the second time domain resource in the time domain and Located before the third time domain resource. That is, the position of the fifth time domain resource in the time domain is between the second time domain resource and the third time domain resource.
  • FIG. 6 shows a schematic diagram of an example of a first time domain resource, a second time domain resource, a third time domain resource, and a fifth time domain resource provided by an embodiment of this application. As shown in FIG. 6, the order from first to last in the time domain is: the first time domain resource, the second time domain resource, the fifth time domain resource, and the third time domain resource.
  • the time domain location of the fifth time domain resource may be predefined or configured by signaling, or the time domain offset value between the fifth time domain resource and the second time domain resource, or the fifth time domain resource
  • the time domain offset value from the first time domain resource is predefined or configured by signaling.
  • the time domain offset value between the fifth time domain resource and the second time domain resource may be K, and K may be the time from when the terminal device detects the indication information to when it is demodulated, or it may be the terminal device
  • the HARQ information includes an acknowledgement (acknowledgement, ACK) and a negative acknowledgement (negative acknowledgement, NACK).
  • the time offset between the earliest time to perform HARQ feedback on the PDSCH is 2 time units (time units such as time slots, subframes, symbols, etc.), that is, the value of K If it is 2, the time offset between the second time domain resource and the fifth time domain resource may be 2 time units.
  • the terminal device determines the third time domain resource according to the instruction information, it may determine the time domain position of the third time domain resource according to the time offset between the fifth time domain resource and the third time domain resource. The bit overhead used to determine the third time domain resource in the indication information can be reduced.
  • the indication information may not indicate the second time domain resource or the time offset value between the first time domain resource and the third time domain resource, but only indicate the fifth time domain resource and the first time domain resource.
  • the indication information may not indicate the second time domain resource or the time offset value between the first time domain resource and the third time domain resource, but only indicate the fifth time domain resource and the first time domain resource.
  • the fifth time domain resource may be the earliest time domain resource for the terminal device to detect DCI. Taking into account the specific implementation process of the terminal device, starting from the terminal device receiving the instruction information, it needs to be on the fifth time domain resource at the earliest to complete the analysis of the received instruction information, that is, the terminal device is also from the fifth time domain resource at the earliest. Start to detect the DCI sent by the network device.
  • the fifth time domain resource can be regarded as the earliest occurrence of the third time domain resource.
  • the fifth time domain resource may be a third time domain resource.
  • the indication information is determined by indicating the third time domain offset value between the fifth time domain resource and the third time domain resource.
  • the time domain resource, and the third time domain resource determined by indicating the second time domain offset value between the second time domain resource and the third time domain resource by indicating the indication information, and two third time domain resources determined by these two methods In the domain resources, the third time domain resource determined by the third time domain offset value is located at a later time. Since the terminal device detects the indication information transmitted on the second time domain resource, the third time domain resource is Before the domain resource, there is no need to detect the DCI in response to the resource request. Therefore, the third time domain resource is located further back in time, which will further reduce the power consumption of the terminal device.
  • the above-mentioned first time domain offset value, second time domain offset value, third time domain offset value, between the first time domain resource and the second time domain resource The time offset value of, the time offset value between the fifth time domain resource and the second time domain resource, or the time offset value between the fifth time domain resource and the first time domain resource in addition to the absolute time length
  • the number of discontinuous reception (DRX) cycles can also be used to represent.
  • the DRX can be a work for the terminal device to turn on the receiver and enter the active state only during the necessary time period to receive downlink data, and turn off the receiver during the remaining time period to enter the dormant state and stop receiving downlink data to save power consumption of the terminal device. mode.
  • the DRX cycle is used to indicate the interval between two active states in the DRX state.
  • a DRX cycle consists of an active state period and a possible dormant period. Using the number of DRX cycles to characterize the length of the time domain offset value can reduce the load and signaling overhead used for the time domain offset value, and save resources.
  • the third time domain resource may be a time domain resource corresponding to the DRX cycle closest to the second time domain resource after the second time domain resource.
  • the DRX cycle closest to the second time domain resource may include (correspond to) one or more time domain resources. If the DRX cycle includes multiple time domain resources, the third time domain resource may be that the DRX cycle includes The first time domain resource.
  • a DRX cycle includes multiple time slots, and each time slot can be regarded as a time domain resource, and the third time domain resource can be the first time slot included in the DRX cycle.
  • the second time domain resource may appear periodically or non-periodically.
  • one first time domain resource may correspond to one second time domain resource.
  • the parameter (numerology) corresponding to different time domain resources may be the same or different.
  • the numerology corresponding to different time domain resources is different, the time deviation between two different time domain resources
  • the shift can be determined according to the numerology corresponding to any one of the time domain resources.
  • Numerology can be understood as a system parameter, which can specifically include Subcarrier Spacing (SCS).
  • SCS Subcarrier Spacing
  • the method for determining the time domain position of the fourth time domain resource can also be determined according to a method similar to that of determining the time domain position of the third time domain resource.
  • the method for determining the time domain position of the fourth time domain resource can also be determined according to a method similar to that of determining the time domain position of the third time domain resource.
  • I won’t repeat it here.
  • the type and/or number of the first signal may be predetermined. Defined or configured by signaling.
  • the terminal device detects the indication information at the second time, it only needs to detect the pre-defined or pre-configured first signal, and does not need to detect other types of signals, and/or only needs to detect the pre-defined or pre-configured number of first signals. Signal, there is no need to detect other numbers of first signals.
  • the complexity of detecting the indication information of the terminal device can be reduced, thereby reducing the power consumption of the terminal device.
  • the complexity of detecting the signal of the terminal device is lower than the complexity of detecting the control channel. Therefore, it can be understood that the first signal to carry the indication information will further reduce the power consumption of the terminal device.
  • the first signal has a corresponding relationship with a time domain offset value
  • the time domain offset value is used by the terminal device to determine the time domain resource of the third time domain resource.
  • the type or number of the first signal may have a corresponding relationship with the time domain offset value.
  • the time domain offset value can be used to determine the time domain location of the third time domain resource.
  • the time domain offset value may include at least one of the aforementioned first time domain offset value, second time domain offset value, and third time domain offset value. That is, different types of signals can represent (correspond to) different time-domain offset values. Different numbers of signals can also represent (correspond to) different time-domain offset values. Optionally, the number or type of signals can also characterize (correspond to) the magnitude of the offset value.
  • the type or number of the above-mentioned signals may have a corresponding relationship with the time domain offset value, which may be predefined or configured by signaling.
  • the terminal device detects the first type of signal on the second time domain resource, it can determine the first time domain offset value, which can determine the time domain offset value of the first time domain resource and the third time domain resource , So as to determine the time domain location of the third time domain resource.
  • the first type of signal may not only indicate the first time domain offset value, but also may indicate the magnitude of the first time domain offset value. That is, the first type of signal not only indicates that the type of the time domain offset value is the first time domain offset value, but also indicates the size of the time domain offset value (that is, the size of the first time domain offset value).
  • the first type of signal may only indicate the first time domain offset value, that is, the first type of signal only indicates that the type of the time domain offset value is the first time domain The offset value. The magnitude of the first time domain offset value is determined or indicated by the number of signals of the first type.
  • the signaling overhead for indicating the time domain offset value can be reduced, and the transmission reliability of the indication information can be ensured.
  • the time domain offset value may also be used by the terminal device to determine the fourth time domain resource Time domain resources.
  • the instruction information may be specific to the terminal device, that is, it is valid only for the terminal device, or the instruction information may also be valid for a group of terminal devices, when the instruction information is valid for a group of terminal devices.
  • the overhead of the indication information can be saved, the waste of resources can be reduced, and the transmission performance of the indication information can be guaranteed.
  • the indication information may be sent to the terminal device by being carried in the first information, that is, the indication information is included in the first information.
  • the first information can be used to trigger the terminal device to turn on the control information detection function or not to turn on the control information detection function in the DRX state, and/or to trigger the terminal device to stop when the control information detection function is turned on The detection of control information or not stop the detection of control information.
  • the network device may send the first information to the terminal device on the second time domain resource, and the first information includes (carries) the indication information. The terminal device detects the first information on the second time domain resource.
  • the indication information may be carried in the first information, and the first information may be used to trigger whether the terminal device opens the control channel (using PDCCH as an example) detection function in the DRX state, and/or to trigger the terminal device In the DRX state and the PDCCH detection function is turned on, whether to stop the detection of the PDCCH.
  • the terminal device can determine whether to enable the PDCCH detection function in the next DRX state, and also determine whether to enable the uplink scheduling grant (UL grant) detection function, and further determine whether it is at the third time
  • the unit needs to detect control information. It can save the overhead of the indication information, reduce the number of control channels that the terminal device needs to detect, and thereby reduce the power consumption of the terminal device.
  • turning on the PDCCH detection function or turning on the uplink scheduling permission detection function can be understood as the terminal device starting to detect the PDCCH or the uplink scheduling permission.
  • the foregoing first information may include a wake-up signal (wake-up signal, WUS), a power-saving signal (PoSS), or a go-to-sleep (GTS) signal, etc.
  • WUS wake-up signal
  • PoSS power-saving signal
  • GTS go-to-sleep
  • the terminal device can determine whether to enable the PDCCH detection function in the next DRX state, and also determine whether to enable the detection function of the uplink scheduling permission. It can also be determined whether to detect DCI on the third time domain resource. For example, suppose that 1bit information is used to represent indication information in PoSS signaling, and this 1bit can respond to resource requests sent by multiple terminal devices.
  • the first information may also include other information used to trigger whether the terminal device is turned on with the PDCCH detection function in the DRX state, and/or used to trigger the terminal device to turn on the PDCCH detection function, Whether to stop the PDCCH detection information or signal.
  • the embodiments of the application are not limited here.
  • the overhead of the indication information can be saved, the number of control channels that the terminal device needs to detect, and the power consumption of the terminal device can be saved.
  • the indication information may be effective for a group of terminal devices. Since the terminal device can determine whether it has sent a resource request on the first time domain resource, for a terminal device that has not sent a resource request, even if the indication information indicates that the terminal device detects the data sent by the network device on the third time domain resource DCI, the terminal device may not detect DCI. For the terminal device that has sent the resource request, the DCI sent by the network device may be detected on the third time domain resource, or the DCI sent by the network device may not be detected on the fourth time domain resource.
  • the instruction information is valid for both terminal device A and terminal device B, and terminal device A and terminal device B respectively send resource requests on their respective first time domain resources (first time domain corresponding to different terminal devices)
  • the resources may be the same or different), but the network device only detects the resource request sent by terminal device A, but not the resource request sent by terminal device B. This will cause terminal device B to detect the indication information, but The instruction information sent by the network device actually does not take into consideration the situation in which the terminal device B turns on the DCI detection function on the third time domain resource. For example, if the indication information is used to indicate to detect DCI on the third time domain resource.
  • the terminal device B starts to detect the DCI on the third time domain resource, it does not detect the DCI sent by the network device for the terminal device B. In order to reduce the power consumption of the terminal device B to detect DCI, if the terminal device B does not detect the DCI for scheduling its own data transmission within a certain period of time, it can re-initiate a resource request.
  • the method 200 when the terminal device detects indication information on the second time domain resource detection, and the indication information is used to instruct the terminal device to detect the DCI on the third time domain resource In this case, or in the case where the indication information is used to indicate the third time domain resource, taking FIG. 7 as an example, on the basis of the method steps shown in FIG. 2, the method 200 further includes: S240.
  • the terminal device When the indication information is used to instruct the terminal device to detect the DCI on the third time domain resource, or when the indication information is used to indicate the third time domain resource, the terminal device is in the third time domain resource. Detect the DCI on.
  • the terminal device when the terminal device detects the first signal on the second time domain resource. Or, when the terminal device detects a certain type of first signal on the second time domain resource, and the type of the first signal is used to instruct the terminal device to detect the DCI on the third time domain resource or to indicate the third time domain Resources. Alternatively, the terminal device detects the indication information carried on the control channel on the second time domain resource, and the indication information is used to instruct the terminal device to detect the DCI on the third time domain resource or to indicate the third time domain resource. Then the terminal device detects the DCI on the third time domain resource.
  • the terminal device may determine the value of the third time domain resource according to the indication of the indication information or the predefined time domain offset value (the first time domain offset value, the second time domain offset value or the third time domain offset value) Time domain location.
  • the DCI includes response information to the resource request sent by the terminal device.
  • the DCI may be transmitted through PDCCH or PDSCH, or through other physical transmission channels, which is not specifically limited in the embodiment of the present application.
  • the DCI may be an uplink scheduling grant (UL grant).
  • the terminal device can use the transmission parameters indicated by the DCI to perform uplink data transmission or side-line data transmission.
  • the terminal device after the terminal device sends the resource request on the first time domain resource, it will not immediately start to detect the DCI sent by the network device in response to the resource request, but based on the data on the second time domain resource.
  • the detected indication information When the indication information indicates that the DCI sent by the network device is detected on the third time domain resource, the DCI detection is started on the third time domain resource, and the DCI is detected between the first time domain resource and the second time domain resource. In the time interval between the second time domain resource and the third time domain resource, the terminal device does not need to detect the DCI sent by the network device, which can save the power consumption of the terminal device, increase the service life of the terminal device, and increase the user experience.
  • the terminal device When the indication information indicates that the DCI sent by the network device is not detected on the third time domain resource, or the indication information is used to indicate the fourth time domain resource, the terminal device does not need to detect the DCI on the third time domain resource or is Without detecting DCI on the four-time domain resources, the power consumption of the terminal equipment can also be saved, and the service life of the terminal equipment can be increased.
  • S240 may also be included in the steps shown in FIG. 3.
  • the method 200 further includes: S209.
  • the network device sends trigger information to the terminal device, where the trigger information is used to instruct the terminal device to determine whether to detect the DCI according to the instruction information.
  • the terminal device after the terminal device sends a resource request on the first time domain resource, it needs to first detect the indication information on the second time domain resource, and then determine whether to detect the network device on the third time domain resource according to the indication information DCI sent, or it is determined not to detect DCI on the fourth time domain resource.
  • the terminal device needs to wait until the indication information is detected before determining whether to start detecting the DCI. This processing flow may be triggered.
  • the network device may send trigger information to the terminal device. The trigger information is used to indicate whether the terminal device is turned on or not. After the indication information is detected, it is determined whether to start the process of detecting DCI.
  • the trigger information can be used to instruct the terminal device to start DCI detection immediately after sending the resource request on the first time domain resource, or it can be used to instruct the terminal device to wait until the terminal device sends the resource request on the first time domain resource.
  • the indication information is detected on the second time domain resource, and then it is determined according to the indication information whether to detect the DCI on the third time domain resource, or it is determined not to detect the DCI on the fourth time domain resource. For example, assuming that 1 bit is used to represent trigger information, when the value of this bit is 0, it can indicate that the terminal device immediately starts to detect the DCI sent by the network device after sending the resource request. When the value of this bit is 1, it can indicate that the terminal device needs to detect the indication information after sending the resource request, and then can determine whether to start DCI detection according to the indication information.
  • the network device may also determine whether to send the instruction information according to the detected resource requests of different types (using SR as an example for illustration). For example, for a terminal device, there are at least two types of SR, and the network device determines whether to send instruction information according to the detected SR type. When the service data that the terminal device needs to transmit is sensitive to the delay requirement, the terminal device can send the first type of SR. In this case, the network device may not send the instruction information, and the terminal device can send the first type of SR. The DCI is detected immediately after the SR. However, if network congestion has occurred on the network device side, indication information may also be sent to instruct the terminal device to first detect the indication information and then determine whether to start detecting DCI.
  • the terminal device can send the second type of SR, and the network device can send indication information based on the detected second type SR, so that the terminal device first detects the indication information and then determines Whether to start detecting DCI. In this way, while meeting the data transmission delay requirement, the power consumption required for the terminal device to detect the DCI can also be reduced as much as possible.
  • the correspondence between the type of the resource request and whether the terminal device needs to detect the indication information in order to determine whether the DCI needs to be detected can be pre-defined or configured by signaling.
  • the first type of resource request corresponds to the processing flow of DCI detection immediately after the terminal device sends the resource request
  • the second type of resource request corresponds to the detection of the indication information after the terminal device sends the resource request to determine whether it is needed.
  • there may also be a corresponding relationship between the type of the resource request and the time domain offset value for example, the first time domain offset value, the second time domain offset value, and the third time domain offset value). Different types of resource requests are used to indicate different time domain offset values.
  • the network device may determine which time domain offset value is scheduled or pre-configured for the terminal device according to the type of the resource request sent by the terminal device.
  • S209 may also be included in the steps shown in FIG. 3 or FIG. 7.
  • the terminal device may continue to be sent on the time domain resource closest to the second time domain resource after the second time domain resource.
  • the time domain resource closest to the second time domain resource may be the next subframe or the next time slot after the second time domain resource.
  • the time domain resource closest to the second time domain resource may be the time domain resource corresponding to the sending period of the resource request that is the closest (earliest) after the second time domain resource. .
  • the terminal device if the terminal device detects indication information on two second time domain resources after sending the resource request for the first time domain resource, the terminal device uses the last detected indication information Whichever is true, that is, according to the indication information detected the last time, it is determined whether to detect the DCI used to respond to the resource request on the third time domain resource, or to determine not to detect the DCI on the fourth time domain resource.
  • the terminal device in order to prevent the resource request sent by the terminal device from being detected by the network device, may start at the first time domain resource start time after sending the resource request, or At the beginning of the second time domain resource, a timer is started. If no indication information is detected within the timer, the terminal device can continue to send resource requests after the timer expires to improve the resource request being detected by the network device. Possibility to improve the reliability of resource request transmission.
  • the network device may separately configure parameters for detecting downlink scheduling information and uplink scheduling information (control information in response to resource requests) for the terminal device.
  • the downlink scheduling information is used to schedule resources for downlink data transmission between the terminal equipment and the network equipment.
  • the uplink scheduling information (for example, DCI) may be used to schedule resources for uplink data transmission between a terminal device and a network device and/or resources for sideline data transmission of the terminal device.
  • the parameters of the uplink scheduling information may include the number of blind detections of the PDCCH, the aggregation level corresponding to the control channel carrying the scheduling information, etc., so that the power consumption of the terminal device for detecting the DCI can be reduced more flexibly.
  • the terminal device has enabled the control channel (for example, PDCCH) detection function (including the detection of downlink scheduling information, uplink scheduling information, and sidelink scheduling information), and after In the process of detecting the PDCCH, when the GTS signaling sent by the network device is received, in order to ensure the transmission performance of the terminal device's uplink data and/or sideline data, the terminal device can only stop the detection of the downlink scheduling information, but continue to detect the uplink scheduling Information and side link scheduling information (DCI in response to resource requests).
  • the terminal device may continue to detect the uplink scheduling information through the DCI format configured by default. So as to ensure the transmission of upstream transmission and side-line data.
  • pre-defined can be implemented by pre-saving corresponding codes, tables, or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices). There is no limitation on its specific implementation.
  • FIG. 9 shows a schematic block diagram of a communication device 300 according to an embodiment of the present application.
  • the device 300 may correspond to the terminal device described in the above method 200 to method 500, or may be a chip or component applied to the terminal device, and Each module or unit in the device 300 is respectively used to execute each action or processing procedure performed by the terminal device in the method 200 described above.
  • the device 300 may include a processing unit 310 and a transceiving unit 320.
  • the transceiving unit 320 is configured to perform specific signal transceiving under the driving of the processing unit 310.
  • the processing unit 310 is configured to generate a resource request, and the resource request is used to request data transmission resources.
  • the transceiver unit 320 is configured to send a resource request on the first time domain resource, where the resource request is used to request data transmission resources.
  • the transceiving unit 320 is further configured to receive indication information on the second time domain resource, the indication information is used to instruct the communication device to detect DCI on the third time domain resource, the DCI is used to respond to the resource request, or the The indication information is used to indicate that the communication device does not detect DCI on the third time time domain resource, and the DCI is used to respond to the resource request.
  • the communication device provided by the present application, after the communication device sends a resource request on the first time domain resource, it does not immediately start to detect the DCI sent by the network device in response to the resource request, but receives it on the second time domain resource.
  • the indication information determines whether it is necessary to detect the DCI sent by the network device on the third time domain resource according to the indication of the indication information. In the time interval between the first time domain resource and the second time domain resource and the time interval between the second time domain resource and the third time domain resource, the communication device does not need to detect the DCI sent by the network device, which can save communication
  • the power consumption of the device increases the service life of the communication device and improves the user experience.
  • the indication information is used to indicate the third time domain resource that carries DCI, and the DCI is used to schedule the data transmission resource, or the indication information is used to indicate the fourth time domain. Resource, the fourth time domain resource does not carry the DCI used to schedule the data transmission resource.
  • the indication information is carried by a first signal, or the indication information is transmitted through a control channel.
  • the transceiver unit 320 is further configured to detect the control channel on the second time domain resource in at least one of the following ways:
  • At least one of the first AL, the first DCI format, the first control resource set, and the first search space is predefined or configured by signaling.
  • the processing unit 310 is further configured to determine the second time domain resource according to the first time domain resource and an offset value, where the offset value is predefined or It is configured by signaling.
  • the indication information includes a time domain offset value, and the time domain offset value is used to indicate the time domain position of the third time domain resource; or, the indication information includes the The time domain location of the third time domain resource.
  • the time domain offset value includes:
  • At least one of the first time domain offset value, the second time domain offset value, and the third time domain offset value is selected from the first time domain offset value, the second time domain offset value, and the third time domain offset value
  • the first time domain offset value is an offset value of the first time domain resource and the third time domain resource in the time domain
  • the second time domain offset value is an offset value of the second time domain resource and the third time domain resource in the time domain
  • the third time domain offset value is the offset value of the fifth time domain resource and the third time domain resource in the time domain, and the fifth time domain resource is located behind the second time domain resource in the time domain and is located in the Before the third time domain resource, the offset value between the fifth time domain resource and the second time domain resource, and/or the offset value between the fifth time domain resource and the first time domain resource Pre-defined or configured by signaling.
  • the indication information is included in the first information, and the first information is used to trigger the communication device to turn on the control information detection function or not to turn on the control information in the discontinuous DRX state
  • the detection function, and/or, the first information is used to trigger the communication device to stop the detection of the control information or not to stop the detection of the control information in the state of discontinuous reception of the DRX.
  • the first signal has a corresponding relationship with a time domain offset value
  • the time domain offset value is used by the communication device to determine the third time domain resource
  • the transceiver unit 320 is further configured to receive trigger information, where the trigger information is used to instruct the communication device to determine whether to detect the DCI according to the instruction information.
  • the device 300 may also be the storage unit, and the transceiving unit 320 may be a transceiver, an input/output interface, or an interface circuit.
  • the storage unit is used to store instructions executed by the transceiver unit 320 and the processing unit 310.
  • the transceiving unit 320, the processing unit 310, and the storage unit are coupled to each other, the storage unit stores instructions, the processing unit 310 is used to execute the instructions stored in the storage unit, and the transceiving unit 320 is used to perform specific signal transceiving under the driving of the processing unit 310.
  • the transceiving unit 320 may include a receiving unit (module) and a sending unit (module), which are used to execute the various embodiments of the foregoing method 200 and the terminal in the embodiments shown in FIG. 2, FIG. 3, FIG. 7, and FIG. 8. Steps for the device to receive and send information.
  • a receiving unit module
  • a sending unit module
  • the transceiving unit 320 may be a transceiver, an input/output interface, or an interface circuit.
  • the storage unit may be a memory.
  • the processing unit 310 may be implemented by a processor.
  • the communication device 400 may include a processor 410, a memory 420, a transceiver 430, and a bus system 440.
  • the various components of the communication device 400 are coupled together through a bus system 440, where the bus system 440 may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus.
  • various buses are marked as the bus system 440 in FIG. 10.
  • FIG. 10 is only schematically drawn.
  • the communication device 300 shown in FIG. 9 or the communication device 400 shown in FIG. 10 can implement the various embodiments of the foregoing method 200 and the steps performed by the terminal device in the embodiments shown in FIG. 2, FIG. 3, FIG. 7, and FIG.
  • the communication device 300 shown in FIG. 9 or the communication device 400 shown in FIG. 10 may be a terminal device.
  • FIG. 11 shows a schematic block diagram of a communication device 500 according to an embodiment of the present application.
  • the device 500 may correspond to the network device described in the above method 200, or may be a chip or component applied to the network device, and the device 500 may Each module or unit is respectively used to execute each action or processing procedure performed by the network device in the above method 200.
  • the device 500 may include a transceiver unit 510 and a processing unit 520.
  • the transceiving unit 520 is configured to perform specific signal transceiving under the driving of the processing unit 510.
  • the transceiver unit 510 is configured to receive a resource request from a terminal device on the first time domain resource, where the resource request is used to request data transmission resources.
  • the processing unit 520 is configured to generate instruction information.
  • the transceiver unit 510 is further configured to send indication information to the terminal device on the second time domain resource, where the indication information is used to indicate a third time domain resource carrying DCI, and the DCI is used to schedule the data transmission resource, or, The indication information is used to indicate the fourth time domain resource, and the fourth time domain resource does not carry the DCI used to schedule the data transmission resource.
  • the communication device after receiving the resource request sent by the terminal device on the first time domain resource, the communication device does not immediately instruct the terminal to detect the DCI in response to the resource request, but on the second time domain resource Send instruction information to the terminal device, where the instruction information is used to indicate whether the terminal device needs to detect the DCI sent by the network device on the third time domain resource.
  • the terminal device In the time interval between the first time domain resource and the second time domain resource, and the time interval between the second time domain resource and the third time domain resource, the terminal device does not need to detect DCI, which can save the power of the terminal device. Consumption, increase the service life of terminal equipment, and improve user experience.
  • the indication information is used to instruct the communication device to detect DCI on the third time domain resource, the DCI is used to respond to the resource request, or the indication information is used to indicate the The communication device does not detect DCI on the third time time domain resource, and the DCI is used to respond to the resource request.
  • the indication information is carried by a first signal, or the indication information is transmitted through a control channel.
  • the transceiver unit 510 is further configured to use at least one of the following methods to send a control channel to the terminal device on the second time domain resource;
  • At least one of the first AL, the first DCI format, the first control resource set, and the first search space is predefined or configured by signaling.
  • the processing unit 520 is further configured to determine the second time domain resource according to the first time domain resource and an offset value, where the offset value is predefined or It is configured by signaling.
  • the indication information includes a time domain offset value, and the time domain offset value is used to indicate the time domain position of the third time domain resource; or, the indication information includes the The time domain location of the third time domain resource.
  • the time domain offset value includes:
  • At least one of the first time domain offset value, the second time domain offset value, and the third time domain offset value is selected from the first time domain offset value, the second time domain offset value, and the third time domain offset value
  • the first time domain offset value is an offset value of the first time domain resource and the third time domain resource in the time domain
  • the second time domain offset value is an offset value of the second time domain resource and the third time domain resource in the time domain
  • the third time domain offset value is the offset value of the fifth time domain resource and the third time domain resource in the time domain, and the fifth time domain resource is located behind the second time domain resource in the time domain and is located in the Before the third time domain resource, the offset value between the fifth time domain resource and the second time domain resource, and/or, the offset value between the fifth time domain resource and the first time domain resource Pre-defined or configured by signaling.
  • the indication information is included in the first information, and the first information is used to trigger the terminal device to enable the control information detection function in the discontinuous reception DRX state or not to enable the control information
  • the detection function, and/or, the first information is used to trigger the terminal device to stop the detection of the control information or not to stop the detection of the control information in the discontinuous reception of the DRX state.
  • the first signal has a corresponding relationship with a time domain offset value
  • the time domain offset value is used by the terminal device to determine the third time domain resource
  • the transceiving unit 510 is further configured to send trigger information to the terminal device, where the trigger information is used to instruct the terminal device to determine whether to detect the DCI according to the indication information.
  • the transceiving unit 510 may include a receiving unit (module) and a sending unit (module), which are used to execute the various embodiments of the foregoing method 200 and the network in the embodiments shown in FIG. 2, FIG. 3, FIG. 7, and FIG. Steps for the device to receive and send information.
  • a receiving unit module
  • a sending unit module
  • the device 500 may also be the storage unit, and the transceiving unit 510 may be a transceiver, an input/output interface, or an interface circuit.
  • the storage unit is used to store instructions executed by the transceiving unit 510 and the processing unit 520.
  • the transceiving unit 510, the processing unit 520, and the storage unit are coupled to each other, the storage unit stores instructions, the processing unit 520 is used to execute the instructions stored in the storage unit, and the transceiving unit 510 is used to perform specific signal transceiving under the driving of the processing unit 520.
  • the transceiving unit 520 may be a transceiver, an input/output interface, or an interface circuit.
  • the storage unit may be a memory.
  • the processing unit 310 may be implemented by a processor.
  • the communication device 600 may include a processor 610, a memory 620, and a transceiver 630.
  • the communication device 500 shown in FIG. 11 or the communication device 600 shown in FIG. 12 can implement the steps performed by the network device in the foregoing method embodiments and the embodiments shown in FIG. 2, FIG. 3, FIG. 7, and FIG. 8.
  • the communication device 500 shown in FIG. 11 or the communication device 600 shown in FIG. 12 may be a network device.
  • 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.
  • the processing element may also be called a processor, and may be an integrated circuit with signal processing capability.
  • 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 (ASIC), or, one or Multiple digital signal processors (digital signal processors, DSP), or, one or more field programmable gate arrays (FPGA), or a combination of at least two of these integrated circuits.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • FPGA 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 general-purpose processor, such as a 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).
  • FIG. 13 is a schematic structural diagram of a terminal device 700 provided by this application.
  • the foregoing apparatus 300 or 400 may be configured in the terminal device 700.
  • the apparatus 300 or 400 itself may be the terminal device 700.
  • the terminal device 700 can execute the actions performed by the terminal device in the above method 200.
  • FIG. 13 only shows the main components of the terminal device.
  • the terminal device 700 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute the software program, and process the data of the software program. For example, it is used to support the terminal device to execute the above-mentioned transmission precoding matrix instruction method embodiment.
  • the memory is mainly used to store software programs and data, for example, to store the codebook described in the above embodiments.
  • the control circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 13 only shows a memory and a processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal device, execute software programs, and process software programs. data.
  • the processor in FIG. 13 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors and are interconnected by technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and the communication data may be built in the processor, or stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and the control circuit with the transceiving function can be regarded as the transceiving unit 701 of the terminal device 700, and the processor with the processing function can be regarded as the processing unit 702 of the terminal device 700.
  • the terminal device 700 includes a transceiving unit 701 and a processing unit 202.
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the device for implementing the receiving function in the transceiving unit 701 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 701 can be regarded as the sending unit, that is, the transceiving unit 701 includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • FIG. 14 is a schematic structural diagram of a terminal device 800 provided by this application.
  • the terminal device includes a processor 810, a data sending processor 820, and a data receiving processor 830.
  • the processing unit 320 and the processing unit 520 in the foregoing embodiment may be the processor 810 in FIG. 13 and perform corresponding functions.
  • the transceiving unit 510 in the foregoing embodiment may be the sending data processor 820 and/or the receiving data processor 830 in FIG. 8.
  • the channel encoder and the channel decoder are shown in FIG. 14, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.
  • FIG. 15 is a schematic structural diagram of a network device 900 provided by an embodiment of this application, which may be used to implement the functions of the network device in the foregoing method.
  • the network device 900 includes one or more radio frequency units, such as a remote radio unit (RRU) 901 and one or more baseband units (BBU) (also referred to as digital units, digital units, DU) 902.
  • RRU 901 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 9011 and a radio frequency unit 9012.
  • the RRU 901 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals, for example, for sending the signaling messages in the foregoing embodiments to terminal equipment.
  • the 902 part of the BBU is mainly used for baseband processing and control of the base station.
  • the RRU 901 and the BBU 902 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 902 is the control center of the base station, and can also be called a processing unit, which is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU (processing unit) 902 may be used to control the base station 90 to execute the operation procedure of the network device in the foregoing method embodiment.
  • the BBU 902 can be composed of one or more single boards, and multiple single boards can jointly support a radio access network of a single access standard (such as an LTE system or a 5G system), and can also support different connections. Enter the standard wireless access network.
  • the BBU 902 also includes a memory 9021 and a processor 9022.
  • the memory 9021 is used to store necessary instructions and data.
  • the memory 9021 stores the codebook in the above-mentioned embodiment and the like.
  • the processor 9022 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 9021 and the processor 9022 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • SoC system-on-chip
  • all or part of the functions of part 902 and part 901 can be implemented by SoC technology, for example, a base station function chip Realization, the base station function chip integrates a processor, a memory, an antenna interface and other devices, the program of the base station related functions is stored in the memory, and the processor executes the program to realize the related functions of the base station.
  • the base station function chip can also read a memory external to the chip to implement related functions of the base station.
  • FIG. 15 is only a possible form, and should not constitute any limitation in the embodiment of the present application. This application does not exclude the possibility of other types of base station structures that may appear in the future.
  • the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and dedicated integration Circuit (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • Access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).
  • the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions or computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instruction may be transmitted from a website, a computer, a server, or a data center through a cable (For example, infrared, wireless, microwave, etc.) to transmit to another website, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • An embodiment of the present application also provides a communication system, which includes: the above-mentioned terminal device and the above-mentioned network device.
  • the embodiment of the present application also provides a computer-readable medium for storing computer program code, and the computer program includes instructions for executing the resource request method of the embodiment of the present application in the above method 200.
  • the readable medium may be a read-only memory (ROM) or a random access memory (RAM), which is not limited in the embodiment of the present application.
  • the present application also provides a computer program product, which includes instructions, when the instructions are executed, so that the terminal device and the network device respectively perform the operations of the terminal device and the network device corresponding to the above method.
  • An embodiment of the present application also provides a system chip, which includes a processing unit and a communication unit.
  • the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, a pin, or a circuit.
  • the processing unit can execute computer instructions to enable the chip in the communication device to execute any of the resource request methods provided in the foregoing embodiments of the present application.
  • any communication device provided in the foregoing embodiments of the present application may include the system chip.
  • the computer instructions are stored in a storage unit.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit can also be a storage unit in the terminal located outside the chip, such as a ROM or other storage units that can store static information and instructions.
  • static storage devices RAM, etc.
  • the processor mentioned in any of the foregoing may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the program execution of the foregoing resource request method.
  • the processing unit and the storage unit can be decoupled, respectively set on different physical devices, and connected in a wired or wireless manner to realize the respective functions of the processing unit and the storage unit, so as to support the system chip to implement the above-mentioned embodiments Various functions in.
  • the processing unit and the memory may also be coupled to the same device.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • Access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).
  • system and "network” in this article are often used interchangeably in this article.
  • the term “and/or” in this article is only an association relationship that describes associated objects, which means 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, exist alone B these three situations.
  • the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.
  • uplink and downlink appearing in this application are used to describe the direction of data/information transmission in a specific scenario.
  • the "uplink” direction generally refers to the direction or distribution of data/information from the terminal to the network side.
  • the “downlink” direction generally refers to the direction in which data/information is transmitted from the network side to the terminal, or the direction in which the centralized unit transmits to the distributed unit.
  • uplink and downlink “It is only used to describe the direction of data/information transmission, and the specific start and end equipment of the data/information transmission is not limited.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), and random access.

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Abstract

L'invention concerne un procédé de demande de ressource et un dispositif de communication, le procédé comprenant les étapes suivantes : un dispositif terminal envoie une demande de ressource sur une première ressource de domaine temporel, la demande de ressource étant utilisée pour demander une ressource de transmission de données ; le dispositif terminal reçoit des informations d'instruction sur une deuxième ressource de domaine temporel, les informations d'instruction étant utilisées pour ordonner au dispositif terminal de détecter des DCI sur une troisième ressource de domaine temporel, ou les informations d'instruction étant utilisées pour ordonner au dispositif terminal de ne pas détecter des DCI sur la troisième ressource de domaine temporel, et les DCI étant utilisées pour répondre à la demande de ressource. Après l'envoi de la demande de ressource, le dispositif terminal ne commence pas immédiatement à détecter des DCI répondant à la demande de ressource, mais tout d'abord détecte des informations d'instruction envoyées par un dispositif de réseau, et détermine selon les informations d'instruction s'il faut commencer à détecter des informations de commande envoyées par le dispositif de réseau. Ainsi, la durée pendant laquelle le dispositif terminal détecte des informations de commande est réduite, la consommation d'énergie du dispositif terminal est réduite, la durée de vie du dispositif terminal est augmentée, en particulier pour des dispositifs de communication de type machine (MTC), et l'expérience de l'utilisateur est améliorée.
PCT/CN2019/103279 2019-08-29 2019-08-29 Procédé de demande de ressource et dispositif de communication WO2021035611A1 (fr)

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CN109729573A (zh) * 2017-10-27 2019-05-07 华为技术有限公司 一种传输下行控制信息的方法及装置
CN109803382A (zh) * 2017-11-16 2019-05-24 华为技术有限公司 数据传输的方法和装置

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WO2024031721A1 (fr) * 2022-08-12 2024-02-15 北京小米移动软件有限公司 Procédé de détection de signalisation de planification, et appareil
CN115529630A (zh) * 2022-11-29 2022-12-27 广州世炬网络科技有限公司 复合通信系统及方法

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