WO2021035448A1 - Procédé et appareil d'indication destinés à la planification inter-créneau - Google Patents

Procédé et appareil d'indication destinés à la planification inter-créneau Download PDF

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WO2021035448A1
WO2021035448A1 PCT/CN2019/102362 CN2019102362W WO2021035448A1 WO 2021035448 A1 WO2021035448 A1 WO 2021035448A1 CN 2019102362 W CN2019102362 W CN 2019102362W WO 2021035448 A1 WO2021035448 A1 WO 2021035448A1
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parameter
bwp
subset
terminal device
minimum
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PCT/CN2019/102362
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English (en)
Chinese (zh)
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张战战
铁晓磊
黄雯雯
花梦
周涵
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华为技术有限公司
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Priority to PCT/CN2019/102362 priority Critical patent/WO2021035448A1/fr
Publication of WO2021035448A1 publication Critical patent/WO2021035448A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of communication technologies, and in particular, to an indication method and device for cross-slot scheduling.
  • the network device configures a minimum K0 value set and/or a minimum K2 value set for each bandwidth part (BWP). Since the configurations of different BWPs are independent of each other, it is possible that the minimum K0(K2) value sets configured by network devices for different BWPs are different, that is, the minimum K0(K2) value sets included in the minimum K0(K2) value sets corresponding to different BWPs may be different. ) The number of values is different. In addition, because different BWPs represent different levels of power savings (that is, the power loss of terminal devices when working in different BWPs is different), it may also lead to different sets of minimum K0 (K2) values configured by network devices for different BWPs. .
  • the network device can dynamically switch the currently effective minimum K0 (K2) value through an information field in the downlink control information (DCI), and the number of bits included in this information field can be based on the minimum K0 (K2) value corresponding to the current BWP ) The minimum number of K0 (K2) values included in the value set is determined.
  • DCI downlink control information
  • the following takes the minimum K0 value set as an example. Since the size of the minimum K0 value set of different BWPs may be different, when the terminal device switches from the original BWP to the target BWP, if the minimum K0 value set corresponding to the original BWP includes the minimum number of K0 values less than the target The number of minimum K0 values included in the minimum K0 value set corresponding to the BWP may be due to insufficient bits included in the information field used to indicate the minimum K0 value in the DCI, which may result in the inability to indicate the minimum K0 value set corresponding to the target BWP Any minimum K0 value.
  • the embodiment of the application provides an indication method and device for cross-slot scheduling, which is used to solve the problem that the information field used to indicate the minimum K0 (K2) value in the DCI does not include enough bits, which results in the inability to indicate the target BWP correspondence.
  • an embodiment of the present application provides a method for indicating cross-slot scheduling.
  • the method includes: generating downlink control information; and sending the terminal device to the terminal device.
  • the above method can be used to realize that when the terminal device switches from the second BWP to the first BWP, the first information field indicates any first parameter in the first parameter set corresponding to the first BWP, and the number of bits included in the first information field can be solved. It is not enough to indicate a problem with any first parameter in the first parameter set corresponding to the first BWP.
  • the first parameter indicated by the first information field is a first parameter in the first subset; the method further includes: determining the first subset, where the first subset is A subset of the first parameter set corresponding to the first BWP, and the first subset is the first parameter that is the first available first parameter after the terminal device switches from the second BWP to the first BWP set.
  • the network device can determine the first subset so that the first information field indicates a first parameter in the first subset, so that the first information field indicates any one of the first parameter sets corresponding to the first BWP.
  • the first parameter can be determined so that the first information field indicates a first parameter in the first subset, so that the first information field indicates any one of the first parameter sets corresponding to the first BWP.
  • the number of bits required to indicate any first parameter in the first parameter set corresponding to the second BWP is less than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP.
  • the number of bits required for a parameter is less than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP.
  • the method further includes: sending an RRC message to the terminal device, the RRC message indicating the first subset.
  • the message used here to indicate the first subset may also be a MAC CE message or physical layer signaling.
  • any first parameter included in the first subset is greater than or equal to the terminal
  • the first parameter currently effective by the device, or the absolute value of the difference between any first parameter included in the first subset and the first parameter currently effective by the terminal device, is less than or equal to the first threshold.
  • the network device can determine the first subset based on a predefined rule, and the above predefined rule can ensure that the DCI decoding time of the terminal device does not change much before and after the BWP is switched.
  • any first parameter included in the first subset is greater than or equal to the first transform Parameter, or, the absolute value of the difference between any first parameter included in the first subset and the first transformation parameter is less than or equal to a first threshold; the first transformation parameter is based on the first BWP
  • the sub-carrier interval of the second BWP and the sub-carrier interval of the second BWP are obtained after transforming the first parameter currently effective for the terminal device.
  • the network device can determine the first subset based on a predefined rule, and the above predefined rule can ensure that the DCI decoding time of the terminal device does not change much before and after the BWP is switched.
  • the number of first parameters included in the first subset is less than or equal to the maximum value of the number of first parameters that can be indicated by the first number of bits, and the first number of bits is indicative The number of bits required by any first parameter in the first parameter set corresponding to the second BWP.
  • the network device sends first indication information to the terminal device, where the first indication information is used to indicate the first subset.
  • the first subset is determined based on a predefined rule.
  • the first information domain includes Wherein, X i represents BWP I corresponding to a first number of the first set of parameters includes a parameter, n is the number represented BWP configured for the terminal device.
  • the number of bits included in the first information field is sufficient to indicate any first parameter in the first parameter set corresponding to any BWP.
  • the first information field is greater than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP, the first information The remaining bits in the field are set to a specific value.
  • the remaining bits in the first information field can be used to judge the BWP false alarm, reduce the probability of the UE switching the BWP by mistake, and reduce the disadvantages caused by the BWP false alarm.
  • the first parameter is the minimum value of the slot interval between the PDCCH and the PDSCH, or the minimum value of the slot interval between the PDCCH and the PUSCH.
  • embodiments of the present application provide a method for indicating cross-slot scheduling.
  • the method includes: receiving downlink control information from a network device; the downlink control information Including a first information field; the first information field indicates a first parameter in a first parameter set corresponding to the first BWP; it is determined that the first parameter indicated by the first information field is from the second BWP The first parameter that takes effect first after switching to the first BWP.
  • the above method can be used to realize that when the terminal device switches from the second BWP to the first BWP, the first information field indicates any first parameter in the first parameter set corresponding to the first BWP, and the number of bits included in the first information field can be solved. It is not enough to indicate a problem with any first parameter in the first parameter set corresponding to the first BWP.
  • the first parameter indicated by the first information field is a first parameter in the first subset; the method further includes: determining the first subset, where the first subset is A subset of the first parameter set corresponding to the first BWP, and the first subset is the first parameter that is the first available first parameter after the terminal device switches from the second BWP to the first BWP set.
  • the terminal device can determine the first subset so that the first information field indicates a first parameter in the first subset, so that the first information field indicates any one of the first parameter set corresponding to the first BWP.
  • the first parameter can be determined so that the first information field indicates a first parameter in the first subset, so that the first information field indicates any one of the first parameter set corresponding to the first BWP.
  • the number of bits required to indicate any first parameter in the first parameter set corresponding to the second BWP is less than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP.
  • the number of bits required for a parameter is less than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP.
  • the method further includes: receiving an RRC message from the network device, the RRC message indicating the first subset.
  • any first parameter included in the first subset is greater than or equal to the terminal
  • the first parameter currently effective by the device, or the absolute value of the difference between any first parameter included in the first subset and the first parameter currently effective by the terminal device, is less than or equal to the first threshold.
  • the terminal device can determine the first subset based on a predefined rule, and the above predefined rule can ensure that the DCI decoding time of the terminal device does not change much before and after the BWP is switched.
  • any first parameter included in the first subset is greater than or equal to the first transform Parameter, or, the absolute value of the difference between any first parameter included in the first subset and the first transformation parameter is less than or equal to a first threshold; the first transformation parameter is based on the first BWP
  • the sub-carrier interval of the second BWP and the sub-carrier interval of the second BWP are obtained after transforming the first parameter currently effective for the terminal device.
  • the terminal device can determine the first subset based on a predefined rule, and the above predefined rule can ensure that the DCI decoding time of the terminal device does not change much before and after the BWP is switched.
  • the number of first parameters included in the first subset is less than or equal to the maximum value of the number of first parameters that can be indicated by the first number of bits, and the first number of bits is indicative The number of bits required by any first parameter in the first parameter set corresponding to the second BWP.
  • the first information domain includes Wherein, X i represents BWP I corresponding to a first number of the first set of parameters includes a parameter, n is the number represented BWP configured for the terminal device.
  • the number of bits included in the first information field is sufficient to indicate any first parameter in the first parameter set corresponding to any BWP.
  • the first information field is greater than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP, the first information The remaining bits in the field are set to a specific value.
  • the remaining bits in the first information field can be used to judge the BWP false alarm, reduce the probability of the UE switching the BWP by mistake, and reduce the disadvantages caused by the BWP false alarm.
  • the first parameter is the minimum value of the slot interval between the PDCCH and the PDSCH, or the minimum value of the slot interval between the PDCCH and the PUSCH.
  • an embodiment of the present application provides a method for indicating cross-slot scheduling.
  • the method includes: a network device generates downlink control information, where the downlink control information includes a first information field, and a first parameter set corresponding to the first BWP Including the default first parameter.
  • the network device sends the downlink control information to the terminal device. If the downlink control information indicates that the terminal device switches from the second BWP to the first BWP, the first information field is set to a specific value; or, if the downlink control information indicates that the second BWP corresponds to switching The first parameter currently in effect in the first parameter set of, and the first information field indicates a first parameter in the first parameter set corresponding to the second BWP.
  • the first information field can be used to determine the BWP false alarm, reduce the probability of the UE erroneously handover the BWP, and reduce the disadvantages caused by the BWP false alarm.
  • the first parameter is the minimum value of the slot interval between the PDCCH and the PDSCH, or the minimum value of the slot interval between the PDCCH and the PUSCH.
  • an embodiment of the present application provides an indication method for cross-slot scheduling.
  • the method includes: a network device generates downlink control information; the network device sends the downlink control information to a terminal device; and the downlink control information includes The first information domain; wherein the first information domain includes Wherein, X i represents BWP I corresponding to a first number of the first set of parameters includes a parameter, n is the number representing the network device configuration of the terminal device BWP.
  • the downlink control information does not indicate BWP switching, the downlink control information indicates switching of the first parameter currently in effect in the first parameter set corresponding to the second BWP, and the first information field indicates the switch corresponding to the second BWP.
  • a first parameter in the first parameter set When the number of bits included in the first information field is greater than the number of bits required to indicate any first parameter in the first parameter set corresponding to the second BWP, the remaining bits in the first information field are set to Specific value.
  • the first information field can be used to determine the DCI false alarm, reduce the increase in power consumption of the UE due to the DCI false alarm, and reduce the disadvantages caused by the DCI false alarm.
  • a communication device in a fifth aspect, has the function of realizing the terminal device in the foregoing method embodiment.
  • These functions can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • a communication device in a sixth aspect, has the function of implementing the network device in the foregoing method embodiment.
  • These functions can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • a communication device may be the terminal device in the foregoing method embodiment, or a chip set in the terminal device.
  • the communication device includes a memory, a communication interface, and a processor.
  • the memory is used to store a computer program or instruction.
  • the processor is coupled to the memory and the communication interface. When the processor executes the computer program or instruction, the communication device executes the foregoing The method executed by the terminal device in the method embodiment.
  • a communication device may be the network device in the foregoing method embodiment, or a chip set in the network device.
  • the communication device includes a memory, a communication interface, and a processor.
  • the memory is used to store a computer program or instruction.
  • the processor is coupled to the memory and the communication interface. When the processor executes the computer program or instruction, the communication device executes the foregoing The method executed by the network device in the method embodiment.
  • a computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute the method executed by the terminal device in the above aspects.
  • a computer program product includes computer program code, which when the computer program code runs on a computer, causes the computer to execute the method executed by the network device in the above aspects.
  • the present application provides a chip system including a processor, which is used to implement the functions of the terminal device in the above-mentioned methods, for example, to receive or process the data and/or data involved in the above-mentioned methods. Or information.
  • the chip system further includes a memory, and the memory is used to store program instructions and/or data.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides a chip system including a processor, which is used to implement the functions of the network device in the methods of the foregoing aspects, for example, to receive or process the data and/or data involved in the foregoing methods. Or information.
  • the chip system further includes a memory, and the memory is used to store program instructions and/or data.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program runs on a computer, the computer executes the first to fourth aspects mentioned above. Aspect method.
  • the embodiments of the present application also provide a computer program product containing a program, which when running on a computer, causes the computer to execute the methods of the first to fourth aspects.
  • Figure 1 is a schematic diagram of DCI scheduling a UE to receive downlink data or uplink data in this application;
  • FIG. 2 is a schematic diagram of UE power consumption for PDCCH scheduling PDSCH in different scenarios in this application;
  • FIG. 3 is a schematic diagram of DCI decoding time in this application.
  • FIG. 4 is a schematic diagram of the communication system architecture in this application.
  • FIG. 5 is one of the overview flowcharts of the indication method for cross-slot scheduling in this application.
  • FIG. 6 is the second overview flowchart of the method for indicating cross-slot scheduling in this application.
  • FIG. 7 is the third overview flowchart of the method for indicating cross-slot scheduling in this application.
  • FIG. 8A is a schematic structural diagram of a communication device 800A in this application.
  • FIG. 8B is a schematic diagram of the structure of the communication device 800B in this application.
  • FIG. 9 is a schematic diagram of the structure of the device 900 in this application.
  • the DCI can indicate the physical downlink shared channel (physical downlink shared channel, PDSCH) (corresponding to downlink data) or physical uplink shared channel (physical uplink shared channel, PDSCH) (corresponding to uplink data) Transmission parameters.
  • PDSCH time domain resource location includes: the time slot where the PDSCH is located, and the starting position and length of the symbol occupied by the PDSCH in the above time slot.
  • the PUSCH time domain resource location includes: the time slot where the PUSCH is located, and the starting position and length of the symbol occupied by the PUSCH in the above time slot.
  • the time slot interval between PDCCH and PDSCH is represented by K0; the time slot interval between PDCCH and PUSCH is represented by K2.
  • the network equipment configures the available value sets of K0 and K2 for the UE through radio resource control (radio resource control, RRC) signaling, for example, by configuring a time-domain resource allocation (TDRA) table, which includes multiple K0 and K2, and then use DCI to indicate a value from the set of available values in the table of TDRA for the current data scheduling.
  • RRC radio resource control
  • the network device does not configure the TDRA table including K0 or K2 through RRC signaling, it can follow the standard predefined default TDRA table (also known as the default TDRA table), and DCI can start from the default TDRA table.
  • the UE can know in advance that the current data scheduling is cross-slot scheduling, after receiving the DCI, the UE can turn off the radio frequency module without buffering any signals while decoding the DCI. It can achieve the effect of energy saving (as shown on the right side of Figure 2, the shaded part in the lower right corner is the energy saved).
  • the speed at which the UE decodes the DCI will also affect the power consumption of the UE. If the UE decodes DCI faster, it needs to work at a higher clock frequency and voltage, so the power consumption is higher. However, if the UE knows in advance that there is a minimum time slot interval between the PDCCH and the PDSCH (or PUSCH), the UE can reduce the DCI decoding speed, thereby reducing the working clock frequency and voltage, so as to save power consumption.
  • the UE can Reduce the decoding speed of DCI. For example, for minimum K0 greater than or equal to 1, the time for decoding DCI can be extended to the time slot of (n+minimum K0-1) (for example, it can be extended to the time slot corresponding to n+minimum K0-1) At the end), where n is the number of the time slot in which the DCI is located.
  • the UE can know whether the current scheduling is simultaneous slot scheduling or cross-slot scheduling before decoding DCI If it is determined that the current scheduling is cross-slot scheduling, the UE can assume that the network equipment will not schedule the PDSCH before the start time of the time slot corresponding to n+minimum K0, and the network equipment will not schedule the PUSCH at n+minimum K2 corresponds to before the start time of the time slot. Therefore, the UE can enter micro-sleep (such as turning off the receiving RF) without buffering any signal before successfully decoding the DCI to save power. At the same time, the UE can reduce the DCI decoding speed, thereby reducing the clock Frequency and working voltage to save power consumption.
  • DCI can also trigger aperiodic reference signals in the downlink BWP.
  • DCI can trigger aperiodic channel state information reference signals (channel state information-reference signals). signal, CSI-RS). Therefore, in order for the UE to achieve the purpose of not buffering the signal in advance when decoding the DCI, it needs to ensure that all downlink data (or downlink signals) scheduled or triggered by the DCI are not in the same time slot as the DCI.
  • aperiodic CSI-RS may also be a reference signal used for time-frequency tracking, that is, aperiodic tracking reference signal (tracking reference signal, TRS).
  • TRS tracking reference signal
  • the currently effective minimum aperiodic CSI-RS trigger offset value can be the same as the currently effective minimum K0 value. In this way, when the minimum K0 value changes, the minimum aperiodic CSI-RS trigger offset value will also change accordingly.
  • DCI Downlink
  • aperiodic reference signals for example, trigger the UE to send aperiodic sounding reference signals (sounding reference signal). signal, SRS).
  • SRS sounding reference signal
  • the network device may indicate (or define through a protocol) that the minimum aperiodic SRS trigger offset value is the same as the minimum K0 (or K2) value currently in effect.
  • the network device can also configure the aperiodic SRS trigger offset value to be large enough when configuring the parameters of the aperiodic SRS, so that the UE can reduce the DCI decoding speed during cross-slot scheduling to save UE power consumption. .
  • This application is mainly applied to the 5th generation wireless communication system, and can also be applied to other communication systems, such as narrowband-internet of things (NB-IoT) systems, machine type communication (MTC) Systems, future next-generation communication systems, etc.
  • NB-IoT narrowband-internet of things
  • MTC machine type communication
  • future next-generation communication systems etc.
  • LTE long term evolution
  • 5G fifth generation
  • NR new radio
  • the terminal equipment in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, user terminal, terminal or user device.
  • the terminal device may also be a handheld device with a wireless communication function, a computing device, or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, etc., which is not limited in the embodiment of the present application.
  • the network equipment in the embodiments of this application may be equipment used to communicate with terminal equipment.
  • the network equipment may be a base station, an evolved NodeB (eNB or eNodeB) in an LTE system, or cloud wireless
  • eNB evolved NodeB
  • eNodeB evolved NodeB
  • cloud wireless The wireless controller in the cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, and a new generation Node B (gNodeB) in the 5G network, etc.
  • CRAN cloud radio access network
  • gNodeB new generation Node B
  • 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 this embodiment of the application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute the program, such as a chip module.
  • the embodiments of the present application may be applied to the communication system as shown in FIG. 4.
  • the aforementioned network elements may be network elements implemented on dedicated hardware, software instances running on dedicated hardware, or instances of virtualized functions on an appropriate platform.
  • the embodiments of the present application may also be applicable to other future-oriented communication technologies.
  • the network architecture and business scenarios described in this application are intended to explain the technical solutions of this application more clearly, and do not constitute a limitation on the technical solutions provided by this application. Those of ordinary skill in the art will know that with the evolution of the network architecture and new business scenarios The technical solutions provided in this application are equally applicable to similar technical problems.
  • the network device may configure a minimum K0 value set and/or a minimum K2 value set for each BWP through RRC signaling.
  • each BWP corresponds to a minimum K0 value set and/or a minimum K2 value set.
  • each DL BWP corresponds to a minimum set of K0 values. If the PDCCH schedules the PDSCH, both the PDCCH and the PDSCH scheduled by the PDCCH are located in the DL BWP.
  • Each UL BWP corresponds to a minimum K2 value set.
  • the minimum K0(K2) value sets corresponding to different BWPs may have different sizes, and it can be expressed that the minimum K0(K2) value sets corresponding to different BWPs include different minimum K0(K2) values.
  • the minimum K0 value set corresponding to DL BWP1 includes three minimum K0 values
  • the minimum K0 value set corresponding to DL BWP2 includes two minimum K0 values.
  • the minimum aperiodic CSI-RS trigger offset value is the same as the currently effective minimum K0 value, this application will no longer separately consider configuring a minimum aperiodic CSI-RS trigger offset value set for aperiodic CSI-RS.
  • a cell is only configured with a minimum K0 (K2) value set, which is applicable to all BWPs of the cell, or a UE is only configured with a minimum K0 (K2) value set, which is applicable to all cells configured for the UE All corresponding BWPs are not within the scope of this application.
  • the first parameter is the minimum value of the slot interval between the PDCCH and the PDSCH, that is, the minimum K0 value, or the minimum value of the slot interval between the PDCCH and the PUSCH, that is, the minimum K2 value. Since the minimum aperiodic CSI-RS trigger offset value is the same as the currently effective minimum K0 value, the first parameter can also be understood as the minimum aperiodic CSI-RS trigger offset value.
  • the network device can dynamically switch the currently effective first parameter through the first information field in the DCI.
  • the DCI here may be a scheduling DCI format (DCI format), for example, the first information field in the DCI format 0_1 is used for Indicate the currently effective minimum K2 value, the first information field in the DCI format 1_1 is used to indicate the currently effective minimum K0 value, or other DCI formats, such as non-scheduled DCI formats.
  • the information field here can also be called bit field or indicator field.
  • the first information domain may be a special information domain, for example, an unused or reserved information domain in the existing DCI format, or a newly-added information domain.
  • the first information field may also be an information field used for other functions, and in a specific state, the information field is reinterpreted to indicate the first parameter.
  • cyclic redundancy check cyclic redundancy check
  • CRC cyclic redundancy check
  • the CRC check has many bits, such as 24 bits, the CRC check still has a certain error probability. If the CRC check Passed, but the actual network device does not send DCI, the UE may mistake an interference signal as a DCI, and a DCI false alarm occurs at this time. Since the network equipment does not send DCI, the UE will generate unnecessary power consumption when the DCI is false alarm, such as receiving and decoding the downlink data PDSCH or detecting the downlink signal.
  • CRC cyclic redundancy check
  • the UE will switch to the target BWP indicated by the DCI, but in fact, the network device does not instruct to switch the BWP.
  • the above situation is called a BWP false alarm.
  • the BWP false alarm will cause the network equipment and the terminal equipment to have inconsistent understanding of the currently activated BWP, which will cause an increase in time delay and/or an increase in UE power consumption.
  • the first scenario is: the first parameter set corresponding to each BWP does not include the default first parameter.
  • the network device needs to indicate the first parameter that is first available after the terminal device switches to the first BWP, which can also be expressed as: Indicates the first parameter that takes effect first after the terminal device switches to the first BWP.
  • the network device can also instruct the terminal device to switch the first parameter that is currently in effect, that is, in the first parameter set corresponding to the second BWP set One of the first parameters.
  • the terminal device switches from the second BWP to the first BWP, it may not be possible to indicate any first parameter in the first parameter set corresponding to the first BWP because the number of bits included in the first information field is not enough. The problem.
  • the currently activated (also referred to as the original activated BWP) DL BWP is DL BWP 1
  • the minimum K0 value set of DL BWP1 includes two minimum K0 values, as shown in Table 1.
  • the information field used to indicate the minimum K0 value only needs 1 bit.
  • the state 0 and state 1 of this one bit indicate row 1 and row 2 in Table 1, respectively.
  • the minimum K0 value set size of DL BWP2 is 4, and the information field used to indicate the minimum K0 value requires 2 bits.
  • the status 00, status 01, status 10, and status 11 of these two bits indicate the first row and the first row in Table 2, respectively. Line 2, Line 3, and Line 4.
  • the UE When the UE switches from DL BWP1 to DL BWP2, the UE will receive the first DCI from DL BWP1, and the first information field in the first DCI shall indicate a minimum K0 value from the minimum K0 value set of DL BWP2 to take effect after the handover The minimum K0 value.
  • the information field of the first information field indicating the minimum K0 value has only one bit, and cannot indicate any of the four minimum K0 values in the target BWP (DL BWP2).
  • the first information field is 1 bit.
  • the high bit needs to be filled with 0, and then 2 bits are used to index the minimum of the target BWP (ie DL BWP2) A row in the table of K0 values.
  • the information field can only indicate one of the first two rows of Table 2.
  • the second scenario is that the first parameter set corresponding to each BWP includes the default first parameter. Or, if the terminal device switches from the second BWP to the first BWP, the first parameter set corresponding to the first BWP includes the default first parameter.
  • the network device does not need to indicate the first parameter that is first available after the terminal device switches to the first BWP, because the terminal device switches to the first BWP.
  • the first parameter that takes effect first after a BWP is the default first parameter in the first parameter set corresponding to the first BWP.
  • the network device can also instruct the terminal device to switch the first parameter currently in effect, that is, in the first parameter set corresponding to the second BWP set One of the first parameters.
  • the terminal device switches from the second BWP to the first BWP, since the network device does not need to indicate the first parameter that takes effect first after the terminal device switches to the first BWP, the first information field is no longer There is a need for instructions.
  • the default first parameter refers to the first parameter specified by the agreement or configured by the network device.
  • the protocol stipulates that the first first parameter in the first parameter set is the default first parameter.
  • the network indicates that one of the first parameter sets is the default first parameter.
  • the example provided in the embodiment of the present application takes the first parameter as the minimum K0 value, the example is also applicable to the first parameter as the minimum K2 value.
  • the embodiment of the present application does not limit the communication system to TDD system or FDD system.
  • Embodiment 1 This embodiment of the application provides an indication method for cross-slot scheduling, which is applied to the first scenario, and can solve the problem of the bits included in the first information field when the terminal device switches from the second BWP to the first BWP.
  • the number is not enough to indicate a problem with any first parameter in the first parameter set corresponding to the first BWP.
  • the method includes:
  • Step 501 The network device generates downlink control information.
  • the downlink control information includes a first information field, and the first information field indicates a first parameter in a first parameter set corresponding to the first BWP.
  • the downlink control information instructs the terminal device to switch from the second BWP to the first BWP.
  • Step 502 The network device sends downlink control information to the terminal device.
  • Step 503 After receiving the downlink control information, the terminal device determines that the first parameter indicated by the first information field is the first parameter that takes effect first after switching from the second BWP to the first BWP.
  • the first parameter indicated by the first information field is the first parameter that takes effect first after switching from the second BWP to the first BWP.
  • the terminal device can assume that the network device will schedule the PDSCH in the time slot corresponding to n+minimum K0 or later, so the terminal device can take effect based on the first one
  • the minimum K0 value (minimum K0) adjusts the decoding speed of DCI.
  • the terminal device can extend the time for decoding DCI to the time slot of (n+minimum K0-1) or (n+ minimum K2-1)
  • the time slot before the time slot for example, can be extended to the end of the time slot corresponding to n+minimum K0-1, where n is the number of the time slot where the DCI is located.
  • the first parameter indicated by the first information field is the first parameter that takes effect first after switching from the second BWP to the first BWP.
  • the terminal device can assume that the network device will schedule the PUSCH in the time slot corresponding to n+minimum K2 or later, so the terminal device can take effect based on the first one
  • the minimum K2 value (minimum K2) adjusts the decoding speed of DCI.
  • the terminal device can extend the time for decoding DCI to the time slot of (n+minimum K2-1) or (n+ minimum K2-1) The time slot before the time slot where the DCI is located, where n is the number of the time slot where the DCI is located.
  • the DCI decoding speed of the terminal device is implemented by the terminal device, and this application does not limit the DCI decoding speed of the terminal device.
  • the first parameter indicated by the first information field is a first parameter in the first subset. Therefore, both the network device and the terminal device need to determine the first subset, where the first subset is a subset of the first parameter set corresponding to the first BWP, and the first subset is the terminal device switching from the second BWP to The set of the first parameters available first after the first BWP.
  • the number of bits required to indicate any first parameter in the first parameter set corresponding to the second BWP is less than the number of bits required to indicate any first parameter in the first parameter set corresponding to the first BWP.
  • the number of first parameters included in the first subset is less than or equal to the maximum value of the number of first parameters that can be indicated by the first number of bits, and the first number of bits indicates that the second BWP corresponds to The number of bits required for any first parameter in the first parameter set.
  • the network device sends an RRC message to the terminal device, and the RRC message indicates the first subset.
  • MAC CE medium access control element
  • the network device is configured with two DL BWPs, namely DL BWP0 and DL BWP1.
  • the minimum K0 value set of the network device configuration DL BWP0 has two minimum K0 values, as shown in Table 3, which includes 1 and 2.
  • the minimum K0 value set of the network device configuration DL BWP1 has four minimum K0 values, as shown in Table 4, which includes 1, 2, 3, and 4.
  • the number of bits required to indicate any minimum K0 value in the minimum K0 value set of DL BWP0 is 1, and the number of bits required to indicate any minimum K0 value in the minimum K0 value set of DL BWP1 is 2.
  • the sub-carrier spacing of DL BWP0 is 15KHz
  • the sub-carrier spacing of DL BWP1 is 30KHz.
  • the network device Before the terminal device switches from DL BWP0 to DL BWP1, the network device sends an RRC message to the terminal device.
  • the RRC message indicates the first subset, as shown in Table 5.
  • the network device sends the first DCI to the terminal device, the first DCI instructs the terminal device to switch from DL BWP0 to DL BWP1, the number of bits included in the first information field included in the first DCI is 1, and the first DCI includes The first information field indicates a first parameter (that is, the minimum K0 value) in the first subset shown in Table 5.
  • the network device sends the second DCI to the terminal device.
  • the second DCI instructs the terminal device to switch from DL BWP1 to DL BWP0.
  • the number of bits included in the first information field included in the second DCI is 2, and the first information included in the second DCI is The field indicates a minimum K0 value in the minimum K0 value set of DL BWP0 as shown in Table 3. At this time, only 1 bit is needed to indicate any minimum K0 value in the minimum K0 value set of DL BWP0. Therefore, the remaining bits here can be used to determine BWP false alarms and reduce the probability of terminal devices switching BWPs incorrectly.
  • the high-order 1 bit of the first information field included in the second DCI is defined by agreement and set to 0 (of course, it can also be set to 1), used to determine the BWP false alarm, the lower 1 bit of the first information field included in the second DCI is used to indicate the first minimum K0 value that takes effect after switching to the target DL BWP0.
  • the terminal device detects that the second DCI instructs to switch DL BWP1 to DL BWP0, and the high-order 1 bit of the first information field included in the second DCI is not 0 (here assume that the high-order 1 bit is set Is 0), the terminal device considers that the second DCI is a false alarm DCI. At this time, a DCI false alarm occurs, and the terminal device does not switch the BWP to DL BWP0.
  • the network device is configured with a DL BWP2.
  • the minimum K0 value set of the network device configuration DL BWP2 has two minimum K0 values, as shown in Table 6, which includes 1 and 3.
  • the number of bits required to indicate any minimum K0 value in the minimum K0 value set of DL BWP2 is 1.
  • the subcarrier spacing of DL BWP2 is 30KHz.
  • the network device Before the terminal device switches from DL BWP2 to DL BWP1, the network device sends an RRC message to the terminal device.
  • the RRC message indicates the first subset, as shown in Table 7. It can be seen from Table 7 that the terminal device switches from DL BWP0 to the first subset corresponding to DL BWP1 (as shown in Table 5) and the terminal device switches from DL BWP2 to the first subset corresponding to DL BWP1 (as shown in Table 7). Show) different. It should be understood that the first subset corresponding to the terminal device switching from DL BWP0 to DL BWP1 and the first subset corresponding to the terminal device switching from DL BWP2 to DL BWP1 may also be the same.
  • the network device sends the first DCI to the UE, the first DCI instructs the UE to switch from DL BWP2 to DL BWP1, the first information field included in the first DCI includes 1, and the first information field included in the first DCI Indicates a first parameter (that is, the minimum K0 value) in the first subset shown in Table 7.
  • the network device sends the second DCI to the terminal device, the second DCI instructs the terminal device to switch from DL BWP1 to DL BWP2, the number of bits included in the first information field included in the second DCI is 2, and the first information field included in the second DCI indicates As shown in Table 6, a minimum K0 value in the minimum K0 value set of DL BWP2.
  • the remaining bits here can be used to determine BWP false alarms and reduce the probability of terminal devices switching BWPs incorrectly.
  • the high-order 1 bit of the first information field included in the second DCI is defined by agreement and set to 0 (of course, it can also be set to 1), used to determine the BWP false alarm, the lower 1 bit of the first information field included in the second DCI is used to indicate the first minimum K0 value that takes effect after switching to the target DL BWP2.
  • the terminal device detects that the second DCI instructs to switch DL BWP1 to DL BWP2, and the high-order 1 bit of the first information field included in the second DCI is not 0 (assuming the high-order 1 bit is set here If it is 0), the terminal device considers that the second DCI is a false alarm DCI. At this time, a DCI false alarm occurs, and the terminal device does not switch BWP to DL BWP2.
  • the terminal device switches between DL BWP0 and DL BWP2
  • since the minimum number of K0 values included in the minimum K0 value set of DL BWP0 is the same as the minimum number of K0 values included in the minimum K0 value set of DL BWP2, so It may not be necessary to configure the first subset corresponding to the switch between DL BWP0 and DL BWP2, and there are no remaining bits in the first information field for judging BWP false alarms.
  • the first subset is determined based on predefined rules. In a possible design, if the sub-carrier interval of the first BWP is the same as the sub-carrier interval of the second BWP, any first parameter included in the first subset is greater than or equal to the first parameter currently in effect of the terminal device, Alternatively, the absolute value of the difference between any of the first parameters included in the first subset and the first parameter currently in effect on the terminal device is less than or equal to the first threshold.
  • any first parameter included in the first subset is greater than or equal to the first transformation parameter, or any first parameter included in the first subset
  • the absolute value of the difference between the parameter and the first transformation parameter is less than or equal to the first threshold; the first transformation parameter is based on the subcarrier interval of the first BWP and the subcarrier interval of the second BWP to perform the first parameter that is currently effective for the terminal device. Obtained after transformation.
  • the terminal device and the network device can determine the first subset based on a predefined rule, and the above predefined rule can ensure that the DCI decoding time of the terminal device does not change much before and after the BWP switch.
  • the first transformation parameter is equal to the first parameter currently in effect of the terminal device multiplied by
  • ⁇ second BWP represents the numerical configuration of the second BWP
  • ⁇ first BWP represents the numerical configuration of the first BWP.
  • a numerical configuration corresponds to a subcarrier interval.
  • the value range of the numerical configuration is: 0, 1, 2, 3, 4, and 5, respectively corresponding to the subcarrier spacing (SCS): 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz.
  • the first subset includes M greater than or equal to the currently effective first parameter of the terminal device
  • the first parameter of the first parameter, and the NM first parameters in the first parameter set corresponding to the first BWP, except for M greater than or equal to the first parameter currently in effect of the terminal device for example, corresponding to the first BWP Randomly select NM other first parameters from the first parameter set in the first parameter set except for M greater than or equal to the first parameter currently in effect of the terminal device, or, according to a predefined selection rule, from the first parameter set corresponding to the first BWP Select NM other first parameters except for M greater than or equal to the first parameter currently
  • the network device is configured with two DL BWPs, namely DL BWP3 and DL BWP1.
  • the minimum K0 value set of the network device configuration DL BWP3 has two minimum K0 values, as shown in Table 8, which includes 2 and 4.
  • the subcarrier spacing (SCS) of DL BWP3 is 30KHz.
  • the minimum K0 value set of the network device configuration DL BWP1 has four minimum K0 values, as shown in Table 4, which includes 1, 2, 3, and 4.
  • the SCS of DL BWP1 is 30KHz.
  • the first subset at this time may be as shown in Table 9.
  • any minimum K0 value included in the first subset shown in Table 9 is greater than or equal to 2.
  • the first row in Table 9 may also be 3, and the second row may be 2.
  • the network device sends the first DCI to the terminal device, the first DCI instructs the terminal device to switch from DL BWP3 to DL BWP1, the number of bits included in the first information field included in the first DCI is 1, and the first information field included in the first DCI indicates As shown in Table 9, a first parameter (that is, the minimum K0 value) in the first subset. It is understandable that when determining Table 9 here, two values are taken as the first subset from the smallest K0 value in Table 4 that is greater than or equal to the currently effective minimum K0 value.
  • the first subset at this time may be as shown in Table 10 (or Table 11).
  • the first subset shown in Table 10 (or Table 11) includes 4 and 1, that is, 4 in the minimum K0 value set corresponding to DL BWP1, and the minimum minimum K0 value 1.
  • the network device sends the first DCI to the terminal device, the first DCI instructs the terminal device to switch from DL BWP3 to DL BWP1, the number of bits included in the first information field included in the first DCI is 1, and the first information field included in the first DCI indicates As shown in Table 10 (or Table 11), a first parameter (that is, the minimum K0 value) in the first subset.
  • the network device may indicate whether the first subset is Table 10 or Table 11, or whether the protocol specifies whether the first subset is Table 10 or Table 11.
  • the first subset at this time may be as shown in Table 12 (or Table 13).
  • the first subset shown in Table 12 (or Table 13) includes 4 and 3, that is, the minimum K0 value set corresponding to DL BWP1, which is the two closest values to the minimum K0 value 4 currently in effect on the terminal device.
  • the network device sends the first DCI to the terminal device, the first DCI instructs the terminal device to switch from DL BWP3 to DL BWP1, the number of bits included in the first information field included in the first DCI is 1, and the first information field included in the first DCI indicates As shown in Table 12 (or Table 13), a first parameter (that is, the minimum K0 value) in the first subset.
  • the network device may indicate whether the first subset is Table 12 or Table 13, or the protocol specifies whether the first subset is Table 12 or Table 13.
  • the SCS of DL BWP3 and DL BWP1 are different, the SCS of DL BWP3 is 15 KHz, and the SCS of DL BWP1 is 30 KHz.
  • Carrier spacing is converted, here, the converted value is:
  • the terminal device and the network device determine the first subset according to the first transformation parameter obtained by the currently effective minimum K0 value, which may be as shown in Table 10 or Table 11, or as shown in Table 12 or Table 13.
  • the network device sends an RRC message to the terminal device, and the RRC message indicates the first subset.
  • the network device sends a DCI to indicate the terminal
  • the network device and the terminal device determine the first subset according to a predefined rule.
  • the terminal device determines the first subset according to the RRC message indicating the first subset.
  • predefined rule may be the predefined rule described in the previous example, and will not be repeated here.
  • the above-mentioned predefined rule can also be 0 or 1 in the high bit of the first information field, until the number of bits included in the first information field is equal to the second number of bits, and the second number of bits indicates the The number of bits required for any first parameter in the first parameter set corresponding to the first BWP.
  • the number of bits contained in the first information field is the first number of bits, and the first number of bits indicates the first number of bits corresponding to the second BWP.
  • the number of bits required for any first parameter in the parameter set, and the first number of bits is smaller than the second number of bits.
  • the first information field indicates any first parameter in the first parameter set corresponding to the first BWP.
  • the number of bits included in the domain is not enough to indicate a problem with any first parameter in the first parameter set corresponding to the first BWP.
  • the network device is configured with two DL BWPs, namely DL BWP0 and DL BWP1.
  • the minimum K0 value set of the network device configuration DL BWP0 has two minimum K0 values, as shown in Table 3, including 1 and 2.
  • the minimum K0 value set of the network device configuration DL BWP1 has 4 minimum K0 values, as shown in Table 4, including 1, 2, 3, and 4.
  • the number of bits included in the first information field is 2 bits.
  • the network device sends the first DCI to the terminal device.
  • the first DCI instructs the terminal device to switch from DL BWP0 to DL BWP1.
  • the first information field included in the first DCI indicates a minimum K0 value of the minimum K0 value set of DL BWP1 shown in Table 4 .
  • the network device sends the second DCI to the terminal device, the second DCI instructs the terminal device to switch from DL BWP1 to DL BWP0, and the first information field included in the second DCI indicates the minimum K0 value set of DL BWP0 as shown in Table 3.
  • a minimum K0 value At this time, only 1 bit is needed to indicate any minimum K0 value in the minimum K0 value set of DL BWP0. Therefore, the remaining bits here can be used to determine the BWP false alarm. For example, the remaining bits can be set to a specific value, such as all 0s or all 1s.
  • Embodiment 2 This embodiment of the present application provides an indication method for cross-slot scheduling, which is applied to the second scenario and can be used to determine a BWP false alarm. As shown in Figure 6, the method includes:
  • Step 601 The network device generates downlink control information, the downlink control information includes a first information field, the downlink control information instructs the terminal device to switch from the second BWP to the first BWP, and the first information field is set to specific Value, the first parameter set corresponding to the first BWP includes the default first parameter.
  • Step 602 The network device sends the downlink control information to the terminal device.
  • Step 603 The terminal device receives the downlink control information, and determines the first parameter in the first parameter set corresponding to the first BWP.
  • the terminal device determines that the first BWP corresponds to The first parameter in the first parameter set is the default first parameter included in the first parameter set corresponding to the first BWP.
  • the specific value here may be specifically configured according to protocol rules or network equipment. For example, the bits included in the first information field may all be set to 0 or 1.
  • the terminal device receives the downlink control information, and determines to switch the currently effective first parameter to the first parameter indicated by the first information field.
  • the network device is configured with two DL BWPs, namely DL BWP0 and DL BWP1.
  • the minimum K0 value set of the network device configuration DL BWP0 has two minimum K0 values, as shown in Table 3, including 1 and 2.
  • the minimum K0 value set of the network device configuration DL BWP1 has 4 minimum K0 values, as shown in Table 4, including 1, 2, 3, and 4. Among them, the default minimum K0 value of DL BWP0 is 1, and the default minimum K0 value of DL BWP1 is 2.
  • the network device sends the first DCI to the terminal device.
  • the first DCI instructs the terminal device to switch from DL BWP0 to DL BWP1.
  • the first information field included in the first DCI includes 1 bit.
  • the bit is set to 0 or 1, depending on the protocol. Rules or network device configuration.
  • the first information field at this time is used to determine the BWP false alarm. After the terminal device switches from DL BWP0 to DL BWP1, the first effective minimum K0 value is 2.
  • the network device sends the second DCI to the terminal device.
  • the second DCI instructs the terminal device to switch from DL BWP1 to DL BWP0.
  • the first information field included in the second DCI includes 2 bits, and these 2 bits are set to 11 (or Set to other states, such as 00), which can be specifically configured according to protocol rules or network device configuration.
  • the first information field at this time is used to determine the BWP false alarm. After the terminal device switches from DL BWP1 to DL BWP0, the first minimum K0 value to take effect is 1.
  • the first information field can be used to judge the BWP false alarm, reduce the probability of the terminal device erroneously switching the BWP, and reduce the disadvantages caused by the BWP false alarm.
  • Embodiment 3 The embodiment of the present application provides an indication method for cross-slot scheduling, which is applied to the first scenario and can be used to determine a DCI false alarm. As shown in Figure 7, the method includes:
  • Step 701 The network device generates downlink control information.
  • Step 702 The network device sends the downlink control information to the terminal device; the downlink control information includes a first information field; wherein, the first information field includes Wherein, X i represents BWP I corresponding to a first number of the first set of parameters includes a parameter, n is the number representing the network device configuration of the terminal device BWP. Wherein, the downlink control information does not indicate BWP switching (that is, the BWP number indicated by the information field of the DCI indicating the BWP number is the same as the number of the currently activated BWP), and the downlink control information indicates switching the first BWP corresponding to the second BWP.
  • the first information field includes
  • X i represents BWP I corresponding to a first number of the first set of parameters includes a parameter
  • n is the number representing the network device configuration of the terminal device BWP.
  • the downlink control information does not indicate BWP switching (that is, the BWP number indicated by the information field of the DCI indicating the B
  • the first parameter currently in effect in the parameter set and the first information field indicates a first parameter in the first parameter set corresponding to the second BWP.
  • the remaining bits in the first information field are set to Specific value.
  • Step 703 The terminal device receives the downlink control information, and the terminal device determines to switch the currently effective first parameter to the first parameter indicated by the first information field.
  • the network device is configured with two DL BWPs, namely DL BWP0 and DL BWP1.
  • the minimum K0 value set of the network device configuration DL BWP0 has two minimum K0 values, as described in Table 3 above, and Table 3 includes 1 and 2.
  • the minimum K0 value set of the network device configuration DL BWP1 has 4 minimum K0 values, as described in Table 4 above, and Table 4 includes 1, 2, 3, and 4.
  • the first information field includes It is calculated that the number of bits included in the first information field is 2 bits.
  • the network device sends the third DCI to the terminal device, and the third DCI instructs to switch the currently effective minimum K0 value in DL BWP0
  • the first information field in the third DCI indicates that the minimum K0 value in the minimum K0 value set of DL BWP0 is 2, which means that the currently effective minimum K0 value is switched from 1 to 2. At this time, only 1 bit is needed to indicate DL Any minimum K0 value in the minimum K0 value set of BWP0.
  • the remaining bits here can be used to determine the DCI false alarm, for example, setting the remaining bits to 1 or 0, which can be specifically configured according to protocol rules or network device configuration.
  • the DL BWP currently activated by the terminal device is DL BWP0, and the terminal device receives the third DCI.
  • the information field used to indicate the BWP number in the third DCI still indicates DL BWP0, indicating that it does not indicate BWP switching.
  • the first information field includes 2 bits.
  • the low-order 1 bit of the first information field is used to indicate a first parameter in the minimum K0 value set of DL BWP0, and the high-order 1 bit is set to 0.
  • the terminal device detects that the high-order 1 bit of the first information field is set to 1, it means that a DCI false alarm has occurred (because the network device will not send such a DCI), the terminal device discards the DCI, and does not execute according to the instructions of the DCI The corresponding behavior.
  • the first information field can be used to determine the DCI false alarm, reduce the increase in power consumption of the terminal device due to the DCI false alarm, and reduce the disadvantages caused by the DCI false alarm.
  • each network element such as a network device and a terminal device, includes a hardware structure and/or software module corresponding to each function.
  • each network element such as a network device and a terminal device
  • each network element includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • an embodiment of the present application further provides a communication device 800A, which can perform the behavior function of the network device in the above-mentioned embodiment.
  • the communication device 800 may be a network device or a chip applied to a network device.
  • the device 800A includes a sending unit 802A and a processing unit 801A.
  • the processing unit 801A generates downlink control information; the downlink control information includes a first information field; the first information field indicates a first parameter in a first parameter set corresponding to the first BWP.
  • the sending unit 802A sends the downlink control information to the terminal device.
  • the processing unit 801A and the sending unit 802A refer to the record in the above method embodiment.
  • the division of modules in the embodiments of this application is illustrative, and it is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules.
  • FIG. 8B is a schematic block diagram of a communication device 800B according to an embodiment of the present application.
  • the communication device 800B can execute the behavior function of the terminal device in the foregoing embodiment, and in order to avoid repetition, it will not be detailed here.
  • the communication device 800B may be a terminal device or a chip applied to the terminal device.
  • the communication device 800B includes a receiving unit 801B and a processing unit 802B.
  • the receiving unit 801B receives downlink control information from a network device; the downlink control information includes a first information field; the first information field indicates a first parameter in a first parameter set corresponding to the first BWP;
  • the processing unit 802B is configured to determine that the first parameter indicated by the first information field is the first available first parameter after switching from the second BWP to the first BWP.
  • the device may be a chip system.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the device includes a processor and an interface, and the interface may be an input/output interface.
  • the processor completes the function of the aforementioned processing unit 801A or 802B
  • the interface completes the function of the aforementioned sending unit 802A or the receiving unit 801B.
  • the device may also include a memory, where the memory is used to store a program that can be run on the processor, and the processor implements the method of each of the foregoing embodiments when the program is executed by the processor.
  • an embodiment of the present application also provides an apparatus 900.
  • the device 900 includes: a communication interface 901, at least one processor 902, and at least one memory 903.
  • the communication interface 901 is used to communicate with other devices through a transmission medium, so that the device used in the apparatus 900 can communicate with other devices.
  • the memory 903 is used to store computer programs.
  • the processor 902 calls the computer program stored in the memory 903, and transmits and receives data through the communication interface 901 to implement the method in the foregoing embodiment.
  • the memory 903 is used to store a computer program; the processor 902 uses the computer program stored in the memory 903 to execute the method executed by the network device in the foregoing embodiment through the communication interface 901.
  • the memory 903 is used to store a computer program; the processor 902 calls the computer program stored in the memory 903, and executes the method executed by the terminal device in the foregoing embodiment through the communication interface 901.
  • the communication interface 901 may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • the processor 902 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and can implement or execute the The disclosed methods, steps and logic block diagrams.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the memory 903 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random access memory (random access memory). -access memory, RAM).
  • the memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this.
  • the memory in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function.
  • the memory 903 and the processor 902 are coupled.
  • the coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • the memory 903 may also be located outside the apparatus 900.
  • the processor 902 may cooperate with the memory 903 to operate.
  • the processor 902 can execute program instructions stored in the memory 903.
  • At least one of the at least one memory 903 may also be included in the processor 902.
  • the embodiment of the present application does not limit the connection medium between the aforementioned communication interface 901, the processor 902, and the memory 903.
  • the memory 903, the processor 902, and the communication interface 901 may be connected by a bus, and the bus may be divided into an address bus, a data bus, and a control bus.
  • the apparatus in the embodiment shown in FIG. 8A and FIG. 8B may be implemented by the apparatus 900 shown in FIG. 9.
  • the processing unit 801A may be implemented by the processor 902, and the sending unit 802A may be implemented by the communication interface 901.
  • the processing unit 802B may be implemented by the processor 902, and the receiving unit 801B may be implemented by the communication interface 901.
  • the embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program runs on a computer, the computer executes the methods shown in each of the foregoing embodiments.
  • the methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can 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.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a 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 integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, a solid state disk Solid State Disk SSD), etc.

Abstract

Procédé et appareil d'indication destinés à la planification inter-créneau. Le procédé fait appel aux étapes suivantes : lorsqu'un dispositif terminal commute d'une seconde BWP à une première BWP, un dispositif de réseau peut indiquer, au moyen d'un domaine d'informations dans des informations de commande de liaison descendante, une valeur minimale d'un intervalle de créneau correspondant à une BWP cible et entre un PDCCH et un PDSCH ou une valeur minimale d'un intervalle de créneau entre le PDCCH et un PUSCH, de façon à résoudre le problème selon lequel la valeur minimale de l'intervalle de créneau correspondant à la BWP cible et entre le PDCCH et le PDSCH ou la valeur minimale de l'intervalle de créneau entre le PDCCH et le PUSCH ne peut pas être indiquée étant donné que le nombre de bits n'est pas suffisant.
PCT/CN2019/102362 2019-08-23 2019-08-23 Procédé et appareil d'indication destinés à la planification inter-créneau WO2021035448A1 (fr)

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US20220007384A1 (en) * 2020-07-01 2022-01-06 Qualcomm Incorporated Csi-rs triggering offset determination for ue
WO2023224842A1 (fr) * 2022-05-20 2023-11-23 Qualcomm Incorporated Élagage de dci pour une commutation de bwp nr

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CN109788553A (zh) * 2017-11-10 2019-05-21 华为技术有限公司 一种带宽切换方法及装置
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WO2018174128A1 (fr) * 2017-03-24 2018-09-27 Nec Corporation Système de communication
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* Cited by examiner, † Cited by third party
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US20220007384A1 (en) * 2020-07-01 2022-01-06 Qualcomm Incorporated Csi-rs triggering offset determination for ue
WO2023224842A1 (fr) * 2022-05-20 2023-11-23 Qualcomm Incorporated Élagage de dci pour une commutation de bwp nr

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