WO2021159911A1 - 指示方法、终端及网络设备 - Google Patents

指示方法、终端及网络设备 Download PDF

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Publication number
WO2021159911A1
WO2021159911A1 PCT/CN2021/071708 CN2021071708W WO2021159911A1 WO 2021159911 A1 WO2021159911 A1 WO 2021159911A1 CN 2021071708 W CN2021071708 W CN 2021071708W WO 2021159911 A1 WO2021159911 A1 WO 2021159911A1
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WO
WIPO (PCT)
Prior art keywords
carrier
dci
target carrier
network device
terminal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2021/071708
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English (en)
French (fr)
Inventor
王磊
邢艳萍
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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 Datang Mobile Communications Equipment Co Ltd filed Critical Datang Mobile Communications Equipment Co Ltd
Priority to EP21753576.4A priority Critical patent/EP4106453B1/en
Priority to US17/799,630 priority patent/US12317280B2/en
Publication of WO2021159911A1 publication Critical patent/WO2021159911A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to an indication method, a terminal, and a network device.
  • the terminal In the wireless system of the related technology, if the terminal is configured with a carrier aggregation mode, the terminal will only monitor the corresponding Physical Downlink Control Channel (PDCCH) on the scheduling carrier.
  • the Downlink Control Information (DCI) carried on the PDCCH includes a carrier indicator field (CIF), which is used to indicate the scheduled carrier corresponding to the terminal. Therefore, when performing cross-carrier scheduling, only DCI format including CIF can be used for scheduling. When the DCI does not contain carrier indication information, the terminal will not be able to determine the carrier number indicated by the DCI, and thus cannot complete the corresponding operation.
  • DCI carrier indicator field
  • the embodiments of the present disclosure provide an indication method, a terminal, and a network device to solve the problem that the terminal cannot determine the target carrier when the CIF is not included in the DCI.
  • embodiments of the present disclosure provide an indication method, including:
  • determining the target carrier corresponding to the DCI according to a rule agreed upon with the network device includes:
  • the n CI is determined according to the radio resource control RRC parameter configured by the network device.
  • the search spaces corresponding to different carriers do not overlap in resources, or
  • the target carrier of the DCI received on the PDCCH candidate is the carrier with the lowest number or the highest number among the different carriers, or
  • the different carriers correspond to the carrier with the lowest or highest n CI value.
  • the determining the target carrier corresponding to the DCI according to a rule agreed upon with the network device includes:
  • the determining the target carrier corresponding to the DCI according to a rule agreed upon with the network device includes:
  • the target carrier corresponding to the DCI is determined.
  • embodiments of the present disclosure provide an indication method, including:
  • the DCI is sent to the terminal on the scheduling carrier, and the DCI does not include the carrier indication field CIF.
  • the target carrier is determined according to the rules agreed with the terminal, including:
  • n CI is configured through RRC parameters.
  • the search spaces corresponding to different carriers do not overlap in resources, or
  • the target carrier of the DCI sent on the PDCCH candidate is the carrier with the lowest or highest number among the different carriers, or is the carrier with the lowest number or the highest number among the different carriers.
  • the carrier with the lowest or highest n CI value among different carriers is the carrier with the lowest or highest.
  • the target carrier is determined according to the rules agreed with the terminal, including:
  • the target carrier is determined through RRC signaling.
  • the target carrier is determined according to the rules agreed with the terminal, including:
  • the target carrier is determined through protocol predefinition.
  • a terminal including:
  • a receiving module configured to receive downlink control information DCI sent by a network device, where the DCI does not include a carrier indicator field CIF;
  • the first determining module is configured to determine the target carrier corresponding to the DCI according to a rule agreed upon with the network device.
  • the first determining module is further configured to determine the target according to the n CI indicated by the cross-carrier related information configured by the network device and the resource position occupied by the physical downlink control channel candidate set PDCCH candidate in the search space Carrier
  • the n CI is determined according to the radio resource control RRC parameter configured by the network device.
  • the search spaces corresponding to different carriers do not overlap in resources, or
  • the target carrier of the DCI received on the PDCCH candidate is the carrier with the lowest number or the highest number among the different carriers, or
  • the different carriers correspond to the carrier with the lowest or highest n CI value.
  • the first determining module is further configured to determine the target carrier corresponding to the DCI according to the RRC signaling of the network device.
  • the first determining module is further configured to determine a target carrier corresponding to the DCI according to a protocol predefined.
  • embodiments of the present disclosure provide a network device, including:
  • the second determining module is used to determine the target carrier according to the rules agreed with the terminal;
  • the sending module is configured to send DCI to the terminal on the scheduling carrier, and the DCI does not include the carrier indication field CIF.
  • the second determining module is further configured to determine the target carrier according to the resource positions occupied by the n CI and PDCCH candidates indicated by the cross-carrier related information;
  • n CI is configured through RRC parameters.
  • the search spaces corresponding to different carriers do not overlap in resources, or
  • the target carrier of the DCI sent on the PDCCH candidate is the carrier with the lowest or highest number among the different carriers, or is the carrier with the lowest number or the highest number among the different carriers.
  • the carrier with the lowest or highest n CI value among different carriers is the carrier with the lowest or highest.
  • the second determining module is further configured to determine the target carrier through RRC signaling.
  • the second determining module is further configured to determine the target carrier through a protocol predefined.
  • an embodiment of the present disclosure provides a terminal, including a processor, a memory, and a program stored on the memory and capable of running on the processor.
  • the program is executed by the processor, the implementation is as follows: On the one hand, the operation of the indication method.
  • the embodiments of the present disclosure provide a network device, including a processor, a memory, and a program stored on the memory and capable of running on the processor.
  • the program is executed by the processor, the implementation is as follows: The operation of the instruction method described in the second aspect.
  • embodiments of the present disclosure provide a processor-readable storage medium on which a program is stored, and when the program is executed by a processor, the operation of the instruction method as described in the first aspect is implemented , Or, the operation of the instruction method as described in the second aspect.
  • the terminal determines the target carrier corresponding to the DCI sent by the rules agreed with the network equipment, so that the target carrier can be Perform the corresponding actions on the carrier.
  • FIG. 1 is one of the schematic flowcharts of the indication method provided by the embodiments of the present disclosure
  • FIG. 2 is the second schematic diagram of the flow of the indication method provided by an embodiment of the present disclosure
  • Figure 3a is one of the schematic diagrams of the application scenarios provided by the embodiments of the present disclosure.
  • Figure 3b is the second schematic diagram of an application scenario provided by an embodiment of the present disclosure.
  • FIG. 4 is one of schematic structural diagrams of a terminal provided by an embodiment of the disclosure.
  • FIG. 5 is one of the schematic structural diagrams of the network device provided by the embodiments of the disclosure.
  • FIG. 6 is the second structural diagram of a terminal provided by an embodiment of the disclosure.
  • FIG. 7 is the second structural diagram of a network device provided by an embodiment of the disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the technology described in this article is not limited to the fifth-generation mobile communication (5th-generation, 5G) system and subsequent evolution communication systems, and is not limited to the LTE/LTE evolution (LTE-Advanced, LTE-A) system, and can also be used for various A kind of wireless communication system, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the terms “system” and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • OFDMA system can realize such as Ultra Mobile Broadband (UMB), Evolved UTRA ((Evolution-UTRA, E-UTRA)), IEEE 802.11 ((Wi-Fi)), IEEE802.16 ((WiMAX)), Radio technologies such as IEEE 802.20 and Flash-OFDM.
  • UMB Ultra Mobile Broadband
  • Evolved UTRA (Evolution-UTRA, E-UTRA)
  • IEEE 802.11 (Wi-Fi)
  • IEEE802.16 (WiMAX)
  • Radio technologies such as IEEE 802.20 and Flash-OFDM.
  • UMB Ultra Mobile Broadband
  • Evolved UTRA (Evolution-
  • LTE and more advanced LTE are new UMTS versions that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
  • the terminal may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), etc.
  • UMPC Ultra-Mobile Personal Computer
  • PDA Personal Digital Assistant
  • the network device may be a network device in a 5G (Fifth-generation, fifth-generation mobile communication technology) system (such as a next generation node base station, gNB) or a transmission and reception point (transmission and reception point, TRP)) and other equipment.
  • 5G Fifth-generation, fifth-generation mobile communication technology
  • gNB next generation node base station
  • TRP transmission and reception point
  • an embodiment of the present disclosure provides an indication method, the execution subject of the method is a terminal, and the specific steps of the method are as follows:
  • Step 101 Receive DCI sent by a network device
  • the network configures a cross-carrier scheduling function for the terminal, and sends a DCI that schedules or indicates the behavior of the scheduled carrier terminal on the scheduling carrier, and the DCI does not include the domain CIF.
  • DCI can be any type of DCI format.
  • Step 102 Determine the target carrier corresponding to the DCI according to the rules agreed with the network equipment.
  • the terminal determines the target carrier corresponding to the DCI when the DCI sent on the scheduling carrier does not include the CIF in the scenario of cross-carrier scheduling according to the rules agreed with the network device.
  • the terminal determining the target carrier corresponding to DCI includes the following manners:
  • Manner 1 Determine the target carrier according to the n CI (also can be recorded as n_CI) indicated by the cross-carrier related information configured by the network device and the resource position occupied by the physical downlink control channel candidate set (PDCCH candidate) in the search space;
  • n CI is determined according to radio resource control (Radio Resource Control, RRC) parameters configured by the network device.
  • RRC Radio Resource Control
  • the search spaces corresponding to different carriers do not overlap in resources
  • PDCCH candidates with the same aggregation level (Aggregation Level, AL) in search spaces corresponding to different carriers do not completely overlap;
  • part or all of the PDCCH candidates with the same AL in the search spaces corresponding to different carriers completely overlap.
  • the target carrier of the DCI received on the PDCCH candidate is the carrier with the lowest number or the highest number in the different carriers, or the corresponding carrier in the different carriers The carrier with the lowest or highest nCI value.
  • the target carrier corresponding to the DCI is determined according to RRC signaling (RRC signaling) of the network device.
  • the target carrier corresponding to the DCI is determined according to protocol pre-definition.
  • the terminal determines the target carrier corresponding to the DCI sent by the rules agreed with the network equipment, so that the target carrier can be Perform the corresponding actions on the carrier.
  • an embodiment of the present disclosure provides an indication method.
  • the execution body of the method is a network device.
  • the specific steps of the method are as follows:
  • Step 201 Determine the target carrier according to the rules agreed with the terminal
  • the network device determines the target carrier indicated by the terminal in the scenario of cross-carrier scheduling according to a rule agreed upon with the terminal.
  • the network device determining the target carrier includes the following manners:
  • Manner 1 Determine the target carrier based on the resource positions occupied by the n CI and PDCCH candidates indicated by the cross-carrier related information
  • the n CI is configured through RRC parameters.
  • the search spaces corresponding to different carriers do not overlap in resources
  • the PDCCH candidates with the same AL in the search spaces corresponding to different carriers do not completely overlap;
  • part or all of the PDCCH candidates with the same AL in the search spaces corresponding to different carriers completely overlap.
  • the target carrier of the DCI received on the PDCCH candidate is the carrier with the lowest number or the highest number in the different carriers, or the corresponding carrier in the different carriers The carrier with the lowest or highest nCI value.
  • Manner 2 Instruct the terminal to perform corresponding actions on a specific target carrier
  • the target carrier is determined through RRC signaling.
  • the target carrier is pre-defined by a protocol.
  • Step 202 Send DCI to the terminal on the scheduling carrier.
  • the DCI sent by the network device on the scheduling carrier does not include a carrier indicator, and the DCI is used to indicate the behavior of the terminal on the target carrier.
  • the terminal determines the target carrier corresponding to the DCI sent by the rules agreed with the network equipment, so that the target carrier can be Perform the corresponding actions on the carrier.
  • the network side is configured with a cross-carrier scheduling function, and the terminal detects and receives the downlink control channel on the scheduling carrier.
  • the network side configures the scheduled carrier for the terminal through high-level signaling RRC signaling.
  • the network side uses DCI without CIF to indicate the behavior of the terminal on the target carrier on the scheduling carrier, such as instructing the terminal to send and receive data on the target carrier, and instructing the terminal to perform contention-free random access on the target carrier. access, CFRA) related operations, etc.
  • the network side configures the CIF for the terminal, which corresponds to the parameter n_CI in the hash function of the search space.
  • Figure 3a is a schematic diagram of the search space for transmission on the scheduling carrier or the primary carrier. It is assumed that the base station configures three carriers for the terminal, and the CIF corresponding to each carrier is 1, 2, and 3 respectively.
  • the network side is configured with a cross-carrier scheduling function, and the terminal detects and receives the downlink control channel on the scheduling carrier.
  • the network side configures the scheduled carrier for the terminal through high-level signaling RRC signaling.
  • the network side uses DCI without CIF to indicate the behavior of the terminal on the target carrier on the scheduling carrier, for example, instructs the terminal to send and receive data on the target carrier, and instructs the terminal to perform CFRA-related operations on the target carrier.
  • the network side configures the CIF for the terminal, which corresponds to the parameter n_CI in the search space hash function.
  • FIG. 3b is a schematic diagram of the search space for transmission on the scheduling carrier or the primary carrier. It is assumed that the base station configures three carriers for the terminal, and the CIF corresponding to each carrier is 1, 2, and 3 respectively. Among them, some PDCCH candidates of target carrier 1 and target carrier 2 overlap.
  • the base station and the terminal determine the target carrier corresponding to the PDCCH according to the following rules;
  • the DCI transmitted by the base station on the PDCCH candidate corresponds to the carrier with the lowest or highest n_CI value
  • the DCI transmitted by the base station on the PDCCH candidate corresponds to the carrier with the lowest or highest carrier number among the overlapping carriers.
  • the network side uses CFRA to perform uplink synchronization operations.
  • the base station sends the PDCCH order on the scheduling carrier and activates the preamble transmission on the target carrier.
  • the PDCCH order is sent in the form of DCI that does not include CIF.
  • the base station and the terminal determine the target carrier where the preamble activated by the PDCCH order is sent through a unified mechanism.
  • the base station configures the target cell number corresponding to the PDCCH order through explicit high-level RRC signaling;
  • the base station and the terminal determine the target cell number corresponding to the PDCCH order in a manner predefined by the protocol.
  • this method can also be applied to other scenarios such as data scheduling, and will not be repeated here.
  • the DCI format that does not include CIF can be fallback DCI format (for example, DCI format 0_0, DCI format 1_0), or it can be non-fallback DCI without CIF domain configured (for example, DCI format 0_1, DCI) format 0_2, DCI format 1_1, DCI format 1_2), or other types of DCI format, which are not limited in the embodiments of the present disclosure.
  • an embodiment of the present disclosure provides a terminal 400, including:
  • the receiving module 401 is configured to receive downlink control information DCI sent by a network device, where the DCI does not include a carrier indicator field CIF;
  • the first determining module 402 is configured to determine a target carrier corresponding to the DCI according to a rule agreed upon with the network device.
  • the first determining module 402 is further configured to determine the resource position occupied by the physical downlink control channel candidate set PDCCH candidate in the search space according to the n CI indicated by the cross-carrier related information configured by the network device Target carrier
  • the n CI is determined according to the radio resource control RRC parameter configured by the network device.
  • the search spaces corresponding to different carriers do not overlap in resources, or
  • the target carrier of the DCI received on the PDCCH candidate is the carrier with the lowest number or the highest number among the different carriers, or
  • the different carriers correspond to the carrier with the lowest or highest n CI value.
  • the first determining module 402 is further configured to determine the target carrier corresponding to the DCI according to the RRC signaling of the network device.
  • the first determining module 402 is further configured to determine a target carrier corresponding to the DCI according to a protocol predefined.
  • the terminal determines the target carrier corresponding to the DCI sent by the rules agreed with the network equipment, so that the target carrier can be Perform the corresponding actions on the carrier.
  • an embodiment of the present disclosure provides a network device 500, including:
  • the second determining module 501 is configured to determine a target carrier according to a rule agreed upon with the terminal;
  • the sending module 502 is configured to send DCI to the terminal on the target carrier, and the DCI does not include a carrier indicator field CIF.
  • the second determining module 501 is further configured to determine the target carrier according to the resource positions occupied by the n CI and PDCCH candidates indicated by the cross-carrier related information;
  • n CI is configured through RRC parameters.
  • the search spaces corresponding to different carriers do not overlap in resources, or
  • the target carrier of the DCI sent on the PDCCH candidate is the carrier with the lowest or highest number among the different carriers, or is the carrier with the lowest number or the highest number among the different carriers.
  • the carrier with the lowest or highest n CI value among different carriers is the carrier with the lowest or highest.
  • the second determining module 501 is further configured to determine the target carrier through RRC signaling.
  • the second determining module 501 is further configured to determine the target carrier through a protocol predefined.
  • the terminal determines the target carrier corresponding to the DCI sent by the rules agreed with the network equipment, so that the target carrier can be Perform the corresponding actions on the carrier.
  • an embodiment of the present disclosure provides another terminal 600, which includes: at least one processor 601, a memory 602, a user interface 903, and at least one network interface 604.
  • the various components in the terminal 600 are coupled together through the bus system 605.
  • bus system 605 is used to implement connection and communication between these components.
  • the bus system 605 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 605 in FIG. 6.
  • the user interface 603 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touch panel, or a touch screen, etc.).
  • a pointing device for example, a mouse, a trackball, a touch panel, or a touch screen, etc.
  • the memory 602 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus RAM
  • the memory 602 described in the embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 602 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: operating system 6021 and application programs 6022.
  • the operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 6022 includes various application programs, such as a media player, a browser, etc., for implementing various application services.
  • the program for implementing the method of the embodiment of the present disclosure may be included in the application program 6022.
  • the terminal 600 may further include: a program stored in the memory 602 and capable of running on the processor 601, and when the program is executed by the processor 601, the steps of the method provided in the embodiment of the present disclosure are implemented.
  • the methods disclosed in the foregoing embodiments of the present disclosure may be applied to the processor 601 or implemented by the processor 601.
  • the processor 601 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 601 or instructions in the form of software.
  • the aforementioned processor 601 may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present disclosure can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature computer-readable storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, etc.
  • the computer-readable storage medium is located in the memory 602, and the processor 601 reads information in the memory 602, and completes the steps of the foregoing method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more ASICs, DSPs, digital signal processing devices (DSP Device, DSPD), programmable logic devices (Programmable Logic Device, PLD), FPGAs, general-purpose processors, controllers, and microcomputers. Controllers, microprocessors, other electronic units for performing the functions described in this application, or a combination thereof.
  • the technology described in the embodiments of the present disclosure can be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory can be implemented in the processor or external to the processor.
  • an embodiment of the present disclosure provides another network device 700, which includes a processor 701, a transceiver 702, a memory 703, and a bus interface.
  • the processor 701 may be responsible for managing the bus architecture and general processing.
  • the memory 703 may store data used by the processor 701 when performing operations.
  • the network device 700 may further include: a program stored on the memory 703 and capable of running on the processor 701. When the program is executed by the processor 701, the steps of the method provided in the embodiment of the present disclosure are implemented.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 701 and various circuits of the memory represented by the memory 703 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art. Therefore, the embodiments of the present disclosure will not further describe them.
  • the bus interface provides the interface.
  • the transceiver 702 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored.
  • a computer program is stored.
  • the computer program is executed by a processor, each process of the foregoing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, I won’t repeat them here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk, or optical disk, etc.

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Abstract

提供了一种指示方法、终端及网络设备，该方法包括：终端接收网络设备发送的DCI，该DCI中不包含CIF；根据与网络设备约定好的规则，确定DCI对应的目标载波。

Description

指示方法、终端及网络设备
相关申请的交叉引用
本申请主张在2020年2月12日在中国提交的中国专利申请号No.202010087995.5的优先权，其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域，特别涉及一种指示方法、终端及网络设备。
背景技术
在相关技术的无线系统中，如果终端配置了载波聚合模式，终端只会在调度载波上监听相应的物理下行控制信道(Physical Downlink Control Channel，PDCCH)。所述PDCCH上承载的下行控制信息(Downlink Control Information，DCI)中包含载波指示域(Carrier Indicator Field，CIF)，用于指示终端对应的被调度载波。因此在进行跨载波调度时，只能采用包含CIF的DCI format进行调度。而当DCI中不含有载波指示信息时，终端将无法确定该DCI指示的载波编号，从而无法完成相应的操作。
发明内容
本公开实施例提供一种指示方法、终端及网络设备，解决DCI中不包含CIF时，终端将无法确定目标载波的问题。
第一方面，本公开实施例提供一种指示方法，包括：
接收网络设备发送的下行控制信息DCI，所述DCI中不包含载波指示域CIF；
根据与所述网络设备约定好的规则，确定所述DCI对应的目标载波。
可选地，根据与所述网络设备约定好的规则，确定所述DCI对应的目标载波，包括：
根据所述网络设备配置的跨载波相关信息指示的n CI和搜索空间中物理 下行控制信道候选集PDCCH candidate占据的资源位置，确定所述目标载波；
其中，所述n CI是根据网络设备配置的无线资源控制RRC参数确定的。
可选地，不同载波对应的搜索空间在资源上没有重叠，或者
不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
不同载波对应的搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
可选地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上接收到的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
可选地，所述根据与所述网络设备约定好的规则，确定与所述DCI对应的目标载波，包括：
根据所述网络设备的RRC信令，确定与所述DCI对应的目标载波。
可选地，所述根据与所述网络设备约定好的规则，确定与所述DCI对应的目标载波，包括：
根据协议预定义，确定与所述DCI对应的目标载波。
第二方面，本公开实施例提供一种指示方法，包括：
根据与终端约定好的规则，确定目标载波；
在调度载波上向所述终端发送DCI，所述DCI中不包含载波指示域CIF。
可选地，根据与终端约定好的规则，确定目标载波，包括：
通过跨载波相关信息指示的n CI和PDCCH candidate占据的资源位置确定所述目标载波；
其中，通过RRC参数配置所述n CI。
可选地，不同载波对应的搜索空间在资源上没有重叠，或者
不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
不同载波对应的所述搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
可选地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上发送的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
可选地，根据与终端约定好的规则，确定目标载波，包括：
通过RRC信令确定所述目标载波。
可选地，根据与终端约定好的规则，确定目标载波，包括：
通过协议预定义确定所述目标载波。
第三方面，本公开实施例提供一种终端，包括：
接收模块，用于接收网络设备发送的下行控制信息DCI，所述DCI中不包含载波指示域CIF；
第一确定模块，用于根据与所述网络设备约定好的规则，确定所述DCI对应的目标载波。
可选地，所述第一确定模块，进一步用于根据所述网络设备配置的跨载波相关信息指示的n CI和搜索空间中物理下行控制信道候选集PDCCH candidate占据的资源位置，确定所述目标载波；
其中，所述n CI是根据网络设备配置的无线资源控制RRC参数确定的。
可选地，不同载波对应的搜索空间在资源上没有重叠，或者
不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
不同载波对应的搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
可选地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上接收到的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
可选地，所述第一确定模块，进一步用于根据所述网络设备的RRC信令，确定与所述DCI对应的目标载波。
可选地，所述第一确定模块，进一步用于根据协议预定义，确定与所述 DCI对应的目标载波。
第四方面，本公开实施例提供一种网络设备，包括：
第二确定模块，用于根据与终端约定好的规则，确定目标载波；
发送模块，用于在调度载波上向所述终端发送DCI，所述DCI中不包含载波指示域CIF。
可选地，所述第二确定模块，进一步用于通过跨载波相关信息指示的n CI和PDCCH candidate占据的资源位置确定所述目标载波；
其中，通过RRC参数配置所述n CI。
可选地，不同载波对应的搜索空间在资源上没有重叠，或者
不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
不同载波对应的所述搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
可选地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上发送的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
可选地，所述第二确定模块，进一步用于通过RRC信令确定所述目标载波。
可选地，所述第二确定模块，进一步用于通过协议预定义确定所述目标载波。
第五方面，本公开实施例提供一种终端，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如第一方面所述的指示方法的操作。
第六方面，本公开实施例提供一种网络设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如第二方面所述的指示方法的操作。
第七方面，本公开实施例提供一种处理器可读存储介质，所述处理器可读存储介质上存储程序，所述程序被处理器执行时实现如第一方面所述的指 示方法的操作，或者，如第二方面所述的指示方法的操作。
本公开实施例中，在跨载波调度的场景下，当在调度载波上发送的DCI中不包含CIF时，终端通过与网络设备约定好的规则确定发送的DCI对应的目标载波，从而能够在目标载波上执行相应的行为。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的指示方法的流程示意图之一；
图2为本公开实施例提供的指示方法的流程示意图之二；
图3a为本公开实施例提供的应用场景示意图之一；
图3b为本公开实施例提供的应用场景示意图之二；
图4为本公开实施例提供的终端的结构示意图之一；
图5为本公开实施例提供的网络设备的结构示意图之一；
图6为本公开实施例提供的终端的结构示意图之二；
图7为本公开实施例提供的网络设备的结构示意图之二。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本文中，诸如“第一”和“第二”等之类的关系术语仅仅用来将相同名 称区分开来，而不是暗示这些名称之间的关系或者顺序。
本文所描述的技术不限于第五代移动通信(5th-generation，5G)系统以及后续演进通信系统，以及不限于LTE/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。
术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(Ultra Mobile Broadband，UMB)、演进型UTRA((Evolution-UTRA，E-UTRA))、IEEE 802.11((Wi-Fi))、IEEE802.16((WiMAX))、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。
本公开实施例中，终端可以为手机、平板电脑、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer，UMPC)、上网本或者个人数字助理(Personal Digital Assistant，PDA)等
本公开实施例中，网络设备可以为5G(Fifth-generation,第五代移动通信技术)系统中的网络设备(例如下一代基站(next generation node base station，gNB)或发送和接收点(transmission and reception point，TRP))等设备。
参见图1，本公开实施例提供一种指示方法，该方法的执行主体为终端，该方法的具体步骤如下：
步骤101：接收网络设备发送的DCI；
在本公开实施例中，网络为终端配置了跨载波调度功能，在调度载波上发送调度或者指示被调度载波终端行为的DCI，该DCI中不包含域CIF。
需要说明的是，该DCI可以为任意类型的DCI format。
步骤102：根据与网络设备约定好的规则，确定与DCI对应的目标载波。
在本公开实施例中，终端通过与网络设备约定的规则，在跨载波调度的场景下，当调度载波上发送的DCI中不包含CIF时确定该DCI对应的目标载波。
具体地，终端确定与DCI对应的目标载波包括如下方式：
方式一、根据网络设备配置的跨载波相关信息指示的n CI(也可记作n_CI)和搜索空间中物理下行控制信道候选集(PDCCH candidate)占据的资源位置，确定目标载波；
在本公开实施例中，n CI是根据网络设备配置的无线资源控制(Radio Resource Control，RRC)参数确定的。
其中，不同载波对应的搜索空间在资源上没有重叠；
或者，不同载波对应的搜索空间内具有相同聚合等级(Aggregation Level，AL)的PDCCH candidate不完全重叠；
或者，不同载波对应的搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
进一步地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在PDCCH candidate上接收到的DCI的目标载波为该不同载波中具有最低编号或者最高编号的载波，或者为该不同载波中对应nCI值最低或者最高的载波。
方式二、终端接收到用于跨载波调度或者跨载波指示的不包含CIF的DCI后，在特定的一个目标载波上执行相应的行为；
在一些实施方式中，根据网络设备的RRC信令(RRC signaling)，确定与DCI对应的目标载波。
在一些实施方式中，根据协议预定义，确定与DCI对应的目标载波。
本公开实施例中，在跨载波调度的场景下，当在调度载波上发送的DCI中不包含CIF时，终端通过与网络设备约定好的规则确定发送的DCI对应的目标载波，从而能够在目标载波上执行相应的行为。
参见图2，本公开实施例提供一种指示方法，该方法的执行主体为网络设备，该方法的具体步骤如下：
步骤201：根据与终端约定好的规则，确定目标载波；
在本公开实施例中，网络设备通过与终端约定的规则，在跨载波调度的场景下，确定为终端指示的目标载波。
具体地，网络设备确定目标载波包括如下方式：
方式一、通过跨载波相关信息指示的n CI和PDCCH candidate占据的资源位置确定目标载波；
在本公开实施例中，通过RRC参数配置该n CI。
其中，不同载波对应的搜索空间在资源上没有重叠；
或者，不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠；
或者，不同载波对应的搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
进一步地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在PDCCH candidate上接收到的DCI的目标载波为该不同载波中具有最低编号或者最高编号的载波，或者为该不同载波中对应nCI值最低或者最高的载波。
方式二、指示终端在特定的一个目标载波上执行相应的行为；
在一些实施方式中，通过RRC信令确定目标载波。
在一些实施方式中，通过协议预定义确定目标载波。
步骤202：在调度载波上向终端发送DCI。
在本公开实施例中，在跨载波调度的场景下，网络设备在调度载波上发送的DCI中不包含carrier indicator，使用该DCI指示终端在目标载波上的行为。
本公开实施例中，在跨载波调度的场景下，当在调度载波上发送的DCI中不包含CIF时，终端通过与网络设备约定好的规则确定发送的DCI对应的目标载波，从而能够在目标载波上执行相应的行为。
下面结合具体应用实施例对本方法进行说明。
实施例一：
网络侧配置了跨载波调度功能，终端在调度载波上检测接收下行控制信道。网络侧通过高层信令RRC signaling为终端配置被调度载波。网络侧在调度载波上通过不含CIF的DCI指示终端在目标载波上的行为，例如指示终端在目标载波上进行数据的收发，指示终端在目标载波上进行无竞争的随机访问(contention-free random access，CFRA)相关操作等。网络侧为终端配置CIF，对应于搜索空间哈希函数(hash function)内的参数n_CI。
当基站为终端配置控制资源集(CORESET)和搜索空间(search space)时，应当保证对应不同载波的搜索空间在资源上没有任何重叠。基站在目标载波对应的PDCCH candidate上发送DCI，终端接收到PDCCH后，根据接收到该PDCCH candidate的资源位置，确定该DCI对应的目标载波。参见图3a，图3a为在调度载波或者主载波上传输的搜索空间示意图，假设基站为终端配置了三个载波，且每个载波对应的CIF分别为1，2，3。则当基站期待指示终端在目标载波1上进行相应的动作时，在n_CI＝1确定的PDCCH candidate上发送下行控制信道。终端在n_CI＝1对应的PDCCH candidate上检测接收到下行控制信道后，则确定按照基站的指示在对应的目标载波上执行相应的行为，即在目标载波1。
实施例二：
网络侧配置了跨载波调度功能，终端在调度载波上检测接收下行控制信道。网络侧通过高层信令RRC signaling为终端配置被调度载波。网络侧在调度载波上通过不含CIF的DCI指示终端在目标载波上的行为，例如指示终端在目标载波上进行数据的收发，指示终端在目标载波上进行CFRA相关操作等。网络侧为终端配置CIF，对应于搜索空间hash function内的参数n_CI。
当基站为终端配置CORESET和search space时，不同载波的搜索空间具有相同AL的PDCCH candidate可能发生重合。基站在目标载波对应的 PDCCH candidate上发送DCI，终端接收到PDCCH后，根据接收到该PDCCH candidate的资源位置，确定该DCI对应的目标载波。参见图3b，图3b为在调度载波或者主载波上传输的搜索空间示意图，假设基站为终端配置了三个载波，且每个载波对应的CIF分别为1，2，3。其中目标载波1和目标载波2的部分PDCCH candidate发生了重合。当基站在重合的PDCCH candidate上发送DCI时，基站和终端根据如下规则确定该PDCCH对应的目标载波；
基站在该PDCCH candidate上传输的DCI对应于具有最低或者最高n_CI值的载波；
或者，基站在该PDCCH candidate上传输的DCI对应于重叠载波中具有最低或者最高载波编号的载波。
实施例三：
网络侧通过CFRA进行上行同步操作。基站在调度载波发送PDCCH order，并激活目标载波上的preamble发送。所述PDCCH order通过不包含CIF的DCI的形式进行发送。此时基站和终端通过统一的机制确定所述PDCCH order激活的preamble发送所在的目标载波。
基站通过显式的高层RRC signaling配置所述PDCCH order所对应的target cell编号；
或者，基站和终端通过协议预定义的方式确定所述PDCCH order所对应的target cell编号。
需要说明的是，如实施例三所述，本方法亦可应用于数据调度等其他场景，在此不再赘述。
进一步地，如实施例一至三所述，不包含CIF的DCI format可以为fallback DCI format(例如DCI format 0_0，DCI format1_0)，也可以是没有配置CIF域的non fallback DCI(例如DCI format 0_1，DCI format 0_2，DCI format1_1，DCI format 1_2)，或者是其他类型的DCI format，本公开实施例对此不做限制。
参见图4，本公开实施例提供一种终端400，包括：
接收模块401，用于接收网络设备发送的下行控制信息DCI，所述DCI中不包含载波指示域CIF；
第一确定模块402，用于根据与所述网络设备约定好的规则，确定与所述DCI对应的目标载波。
可选地，所述第一确定模块402，进一步用于根据所述网络设备配置的跨载波相关信息指示的n CI和搜索空间中物理下行控制信道候选集PDCCH candidate占据的资源位置，确定所述目标载波；
其中，所述n CI是根据网络设备配置的无线资源控制RRC参数确定的。
可选地，不同载波对应的搜索空间在资源上没有重叠，或者
不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
不同载波对应的搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
可选地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上接收到的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
可选地，所述第一确定模块402，进一步用于根据所述网络设备的RRC信令，确定与所述DCI对应的目标载波。
可选地，所述第一确定模块402，进一步用于根据协议预定义，确定与所述DCI对应的目标载波。
本公开实施例中，在跨载波调度的场景下，当在调度载波上发送的DCI中不包含CIF时，终端通过与网络设备约定好的规则确定发送的DCI对应的目标载波，从而能够在目标载波上执行相应的行为。
参加图5，本公开实施例提供一种网络设备500，包括：
第二确定模块501，用于根据与终端约定好的规则，确定目标载波；
发送模块502，用于在所述目标载波上向所述终端发送DCI，所述DCI中不包含载波指示域CIF。
可选地，所述第二确定模块501，进一步用于通过跨载波相关信息指示的n CI和PDCCH candidate占据的资源位置确定所述目标载波；
其中，通过RRC参数配置所述n CI。
可选地，不同载波对应的搜索空间在资源上没有重叠，或者
不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
不同载波对应的所述搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
可选地，当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上发送的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
可选地，所述第二确定模块501，进一步用于通过RRC信令确定所述目标载波。
可选地，所述第二确定模块501，进一步用于通过协议预定义确定所述目标载波。
本公开实施例中，在跨载波调度的场景下，当在调度载波上发送的DCI中不包含CIF时，终端通过与网络设备约定好的规则确定发送的DCI对应的目标载波，从而能够在目标载波上执行相应的行为。
参见图6，本公开实施例提供另一种终端600，包括：至少一个处理器601、存储器602、用户接口903和至少一个网络接口604。终端600中的各个组件通过总线系统605耦合在一起。
可以理解的是，总线系统605用于实现这些组件之间的连接通信。总线系统605除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图6中将各种总线都标为总线系统605。
其中，用户接口603可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球、触感板或者触摸屏等)。
可以理解的是，本公开实施例中的存储器602可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪 存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch Link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的存储器602旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器602存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统6021和应用程序6022。
其中，操作系统6021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序6022，包含各种应用程序，例如媒体播放器、浏览器等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序6022中。
在本公开实施例中，终端600还可以包括：存储在存储器602上并可在处理器601上运行的程序，该程序被处理器601执行时实现本公开实施例提供的方法的步骤。
上述本公开实施例揭示的方法可以应用于处理器601中，或者由处理器601实现。处理器601可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器601中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器601可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本公开实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位 于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的计算机可读存储介质中。该计算机可读存储介质位于存储器602，处理器601读取存储器602中的信息，结合其硬件完成上述方法的步骤。具体地，该计算机可读存储介质上存储有计算机程序。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个ASIC、DSP、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、FPGA、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
参见图7，本公开实施例提供另一种网络设备700，包括：处理器701、收发机702、存储器703和总线接口。
其中，处理器701可以负责管理总线架构和通常的处理。存储器703可以存储处理器701在执行操作时所使用的数据。
本公开实施例中，网络设备700还可以包括：存储在存储器703上并可在处理器701上运行的程序，该程序被处理器701执行时实现本公开实施例提供的方法的步骤。
在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器701代表的一个或多个处理器和存储器703代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开实施例不再对其进行进一步描述。总线接口提供接口。收发机702可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、 随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (17)

  1. 一种指示方法，应用于终端，包括：
    接收网络设备发送的下行控制信息DCI，所述DCI中不包含载波指示域CIF；
    根据与所述网络设备约定好的规则，确定所述DCI对应的目标载波。
  2. 根据权利要求1所述的方法，其中，根据与所述网络设备约定好的规则，确定所述DCI对应的目标载波，包括：
    根据所述网络设备配置的跨载波相关信息指示的n CI和搜索空间中物理下行控制信道候选集PDCCH candidate占据的资源位置，确定所述目标载波；
    其中，所述n CI是根据网络设备配置的无线资源控制RRC参数确定的。
  3. 根据权利要求2所述的方法，其中，
    不同载波对应的搜索空间在资源上没有重叠，或者
    不同载波对应的搜索空间内具有相同聚合等级AL的PDCCH candidate不完全重叠，或者
    不同载波对应的搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
  4. 根据权利要求3所述的方法，其中，
    当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上接收到的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
  5. 根据权利要求1所述的方法，其中，所述根据与所述网络设备约定好的规则，确定与所述DCI对应的目标载波，包括：
    根据所述网络设备的RRC信令，确定与所述DCI对应的目标载波。
  6. 根据权利要求1所述的方法，其中，所述根据与所述网络设备约定好的规则，确定与所述DCI对应的目标载波，包括：
    根据协议预定义，确定与所述DCI对应的目标载波。
  7. 一种指示方法，应用于网络设备，包括：
    根据与终端约定好的规则，确定目标载波；
    在调度载波上向所述终端发送DCI，所述DCI中不包含载波指示域CIF。
  8. 根据权利要求7所述的方法，其中，根据与终端约定好的规则，确定目标载波，包括：
    通过跨载波相关信息指示的n CI和PDCCH candidate占据的资源位置确定所述目标载波；
    其中，通过RRC参数配置所述n CI。
  9. 根据权利要求8所述的方法，其中，
    不同载波对应的搜索空间在资源上没有重叠，或者
    不同载波对应的搜索空间内具有相同AL的PDCCH candidate不完全重叠，或者
    不同载波对应的所述搜索空间内具有相同AL的部分或者全部PDCCH candidate完全重叠。
  10. 根据权利要求9所述的方法，其中，
    当至少两个归属于不同载波的PDCCH candidate完全重合时，在所述PDCCH candidate上发送的DCI的目标载波为所述不同载波中具有最低编号或者最高编号的载波，或者为所述不同载波中对应n CI值最低或者最高的载波。
  11. 根据权利要求7所述的方法，其中，根据与终端约定好的规则，确定目标载波，包括：
    通过RRC信令确定所述目标载波。
  12. 根据权利要求7所述的方法，其中，根据与终端约定好的规则，确定目标载波，包括：
    通过协议预定义确定所述目标载波。
  13. 一种终端，包括：
    接收模块，用于接收网络设备发送的下行控制信息DCI，所述DCI中不包含载波指示域CIF；
    第一确定模块，用于根据与所述网络设备约定好的规则，确定所述DCI对应的目标载波。
  14. 一种网络设备，包括：
    第二确定模块，用于根据与终端约定好的规则，确定目标载波；
    发送模块，用于在调度载波上向所述终端发送DCI，所述DCI中不包含载波指示域CIF。
  15. 一种终端，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至6任一项所述的指示方法的操作。
  16. 一种网络设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求7至12任一项所述的指示方法的操作。
  17. 一种处理器可读存储介质，所述处理器可读存储介质上存储程序，所述程序被处理器执行时实现如权利要求1至6任一项所述的指示方法的操作，或者，如权利要求7至12任一项所述的指示方法的操作。
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