WO2021031888A1 - Pdcch的监听方法和设备 - Google Patents

Pdcch的监听方法和设备 Download PDF

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Publication number
WO2021031888A1
WO2021031888A1 PCT/CN2020/107875 CN2020107875W WO2021031888A1 WO 2021031888 A1 WO2021031888 A1 WO 2021031888A1 CN 2020107875 W CN2020107875 W CN 2020107875W WO 2021031888 A1 WO2021031888 A1 WO 2021031888A1
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Prior art keywords
pdcch
coreset
parameter
monitoring
coresets
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PCT/CN2020/107875
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English (en)
French (fr)
Inventor
吴凯
潘学明
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维沃移动通信有限公司
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Publication of WO2021031888A1 publication Critical patent/WO2021031888A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a method and device for monitoring a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • PDCCH Physical Downlink Control Channel
  • the embodiment of the present application provides a method and device for monitoring PDCCH to determine the receiving parameter of the PDCCH, so as to monitor the PDCCH according to the determined receiving parameter.
  • a PDCCH monitoring method is provided, the method is executed by a terminal device, and the method includes:
  • a terminal device in a second aspect, includes:
  • a receiving module configured to receive a first PDCCH; wherein, the first PDCCH is used to instruct the terminal device to monitor the second PDCCH;
  • a receiving parameter determining module configured to determine a second receiving parameter of the second PDCCH according to the first receiving parameter of the first PDCCH
  • the receiving module is further configured to monitor the second PDCCH according to the second receiving parameter.
  • a terminal device in a third aspect, includes a processor, a memory, and a computer program that is stored in the memory and can run on the processor.
  • the computer program When the computer program is executed by the processor, The steps of the PDCCH monitoring method as described in the first aspect are implemented.
  • a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, the steps of the PDCCH monitoring method as described in the first aspect are implemented.
  • the terminal device determines the receiving parameter of the second PDCCH according to the receiving parameter of the first PDCCH, and monitors the second PDCCH according to the determined receiving parameter, where the first PDCCH is used to instruct the terminal device to monitor The second PDCCH.
  • the embodiment of the present application provides a solution for how to determine the receiving parameter of the PDCCH.
  • the terminal device can monitor the PDCCH according to the determined receiving parameter to improve communication performance.
  • Fig. 1 is a schematic flowchart of a method for monitoring PDCCH according to an embodiment of the present application
  • Fig. 2 is a schematic diagram of CORESET according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram of monitoring timing according to an embodiment of the present application.
  • Figure 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of a terminal device according to another embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • LTE Time Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • terminal equipment may include, but is not limited to, a mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal), mobile phone (Mobile Telephone), user equipment (UE), and mobile phone (handset) And portable equipment (portable equipment), vehicles (vehicle), etc.
  • the terminal equipment can communicate with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the terminal equipment can be a mobile phone (or It is called a "cellular" phone), a computer with wireless communication function, etc.
  • the terminal device can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device.
  • an embodiment of the present application provides a method 100 for monitoring PDCCH.
  • the method can be executed by a terminal device.
  • the method can be executed by software or hardware installed on the terminal device.
  • the method includes the following step:
  • S102 Receive the first PDCCH, where the first PDCCH is used to instruct the terminal device to monitor the second PDCCH.
  • this embodiment may be applied in a Discontinuous Reception (DRX) scenario, where the first PDCCH carries a wake-up signal (Wake Up Signal, WUS).
  • the terminal device can detect the wake-up signal before DRX: if the terminal device detects the wake-up signal, that is, receives the first PDCCH, the terminal device subsequently monitors the second PDCCH during the active period of DRX; if the terminal device If the wake-up signal is not detected, the terminal device will not monitor the second PDCCH during the active period of DRX, that is, skip the DRX and continue to sleep.
  • the first PDCCH carries a sleep indicator signal (Go to sleep, GTS).
  • the terminal device If the terminal device does not detect the sleep indicator signal, that is, the first PDCCH is not received, the terminal device is subsequently in the DRX activation period Monitor the second PDCCH; if the terminal device detects the sleep indication signal, the terminal device does not monitor the second PDCCH during the DRX activation period, that is, skips the DRX and continues to sleep.
  • the first PDCCH can be used to indicate channel occupation information on the unlicensed frequency band, and the channel occupation information includes whether the channel is occupied or not. And at least one of channel occupation time (Channel Occupation Time, COT) information.
  • COT Channel Occupation Time
  • the channel occupancy information includes indication information that the channel is not occupied; for another example, the channel occupancy information includes indication information that the channel is occupied and COT information; for another example, the channel occupancy information includes only COT information.
  • the aforementioned COT information may include at least one of the start time of channel occupation; the end time of channel occupation; the occupation time of the channel; the listen before talk (LBT) level and the LBT priority.
  • S104 Determine the second receiving parameter of the second PDCCH according to the first receiving parameter of the first PDCCH.
  • the first receiving parameter includes at least one of the following:
  • the terminal device can monitor the first PDCCH on one or more CORESETs, and the CORESET encapsulates information such as the frequency band occupied by the PDCCH in the frequency domain and the number of OFDM symbols occupied in the time domain.
  • the first CORESET here may be the CORESET that receives the first PDCCH, and the first CORESET may be one or more.
  • TCI Transmission Configuration Indication
  • Each CORESET (including the aforementioned first CORESET) of the terminal device can be configured with one or more TCI states. If the first CORESET is configured with multiple TCI states, the network device can activate one TCI state through MAC-CE, that is, at the same moment, one CORESET corresponds to one activated TCI state.
  • the TCI status can be used to indicate that different reference signals and physical channels meet the quasi colocation (QCL) relationship, including the following QCL types:
  • QCL-Type A ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇ ;
  • QCL-Type B ⁇ Doppler shift, Doppler expansion ⁇
  • QCL-Type C ⁇ Doppler shift, average delay ⁇
  • QCL-Type D ⁇ Space Rx parameter ⁇ , used to assist terminal equipment to receive.
  • mapping relationship between CORESET and search space, and information such as the starting OFDM symbol number of the PDCCH and the PDCCH monitoring period are encapsulated in the search space.
  • the second receiving parameter includes at least one of the following:
  • the first receiving parameter may also include whether the first PDCCH is received; correspondingly, the second receiving parameter may include whether the second PDCCH needs to be monitored.
  • the second PDCCH needs to be monitored during the active period of DRX; if the wake-up signal is not received before DRX, the first PDCCH is not received. PDCCH, there is no need to monitor the second PDCCH during the DRX activation period.
  • the sleep indication signal is not received before DRX, that is, the first PDCCH is not received, then the second PDCCH needs to be monitored during the active period of DRX; if the sleep indication signal is received before DRX, it is received For the first PDCCH, there is no need to monitor the second PDCCH during the DRX activation period.
  • this step may specifically determine the second receiving parameter of the second PDCCH according to the first receiving parameter of the first target PDCCH; where the first target PDCCH is The last PDCCH detected among the first PDCCHs.
  • S106 Monitor the second PDCCH according to the second receiving parameter.
  • receiving the first PDCCH in S102 includes: receiving the first PDCCH during the inactive period of DRX.
  • S106 may specifically be during the active period of DRX, monitoring the first PDCCH according to the second receiving parameter. Two PDCCH.
  • the first PDCCH may be used to indicate channel occupancy information on the unlicensed frequency band, and the channel occupancy information includes COT information.
  • S106 may be specifically based on the COT information and the second receiving parameter Monitoring the second PDCCH, for example, monitoring the second PDCCH according to the second receiving parameter within the channel occupation time indicated by the COT information.
  • the terminal device determines the receiving parameter of the second PDCCH according to the receiving parameter of the first PDCCH, and monitors the second PDCCH according to the determined receiving parameter, wherein the first PDCCH is used to indicate the terminal device Monitor the second PDCCH.
  • the embodiment of the present application provides a solution for how to determine the receiving parameter of the PDCCH.
  • the terminal device can monitor the PDCCH according to the determined receiving parameter to improve communication performance.
  • the first receiving parameter includes the number of the first CORESET for receiving the first PDCCH
  • the second receiving parameter includes the second CORESET for monitoring the second PDCCH.
  • the terminal device can determine the second CORESET to monitor the second PDCCH according to the number of the first CORESET of the first PDCCH; wherein the number of the first CORESET is the same as the number of the second CORESET, that is, this embodiment
  • the second PDCCH is monitored using the CORESET with the same number as the CORESET where the first PDCCH is located.
  • the second PDCCH can be monitored separately on multiple second CORESETs. Since the second PDCCH is monitored on multiple second CORESETs, the receiving performance of the second PDCCH is improved.
  • the first PDCCH carries a wake-up signal. Considering that if the terminal device fails to successfully receive the first PDCCH before the DRX cycle, the terminal device will skip the DRX and continue to sleep, affecting the second PDCCH. Receiving performance. In this embodiment, since the first PDCCH is received on multiple first CORESETs, the reception performance of the first PDCCH is guaranteed, and similarly, the reception performance of the second PDCCH in the DRX active period is guaranteed.
  • the first CORESET that receives the first PDCCH is one or more, and the terminal device monitors the second PDCCH on all CORESETs configured by the network device.
  • the first receiving parameter includes the first TCI state of the first CORESET of the first PDCCH received, and the second receiving parameter includes the second CORESET of listening to the second PDCCH.
  • the terminal device may determine to monitor the second CORESET of the second PDCCH according to the first activated TCI state of the first CORESET of the first PDCCH; wherein, the first activated TCI state of the first CORESET is the same as the first activated TCI state of the second CORESET.
  • the second activated TCI state is the same, that is, in this embodiment, the terminal device can select the second activated TCI state that is the same as the first activated TCI state, and monitor the second PDCCH on the CORESET corresponding to the second activated TCI state.
  • first CORESETs that receive the first PDCCH.
  • second CORESETs that monitor the second PDCCH; the first activated TCI states of the multiple first CORESETs are different from those of multiple first CORESETs.
  • the second activated TCI state of the second CORESET is the same.
  • the first CORESET in this embodiment is an additional CORESET, and the additional CORESET is used to receive a wake-up signal, and the first CORESET and the second CORESET are different CORESETs.
  • the second PDCCH can be monitored separately on multiple second CORESETs. Since the second PDCCH is monitored on multiple second CORESETs, the receiving performance of the second PDCCH is improved.
  • the terminal device may monitor the second PDCCH on multiple CORESETs including the second CORESET, and the activated TCI states of the multiple CORESETs may be the same. In this embodiment, the terminal device can also adjust the activated TCI state of the multiple CORESETs (except for the second CORESET) to be the same as the activated TCI state of the second CORESET.
  • the terminal device can monitor the second PDCCH on the multiple second CORESETs, and the activated TCI states of the multiple second CORESETs are the same.
  • the first receiving parameter includes a first QCL parameter used by the first PDCCH received, and the second receiving parameter includes a second CORESET for monitoring the second PDCCH.
  • the terminal device can determine the second CORESET to monitor the second PDCCH according to the first QCL parameter of the first PDCCH; wherein, the QCL relationship of the first QCL parameter and the QCL relationship indicated by the second TCI state of the second CORESET the same. That is, in this embodiment, the terminal device can select the second activated TCI state, where the QCL relationship indicated by the second activated TCI state is the same as the QCL relationship of the first QCL parameter; and then the CORESET corresponding to the second activated TCI state Monitor the second PDCCH.
  • the QCL relationship mentioned in the various embodiments of this specification may mean that some parameters between two ports are quasi co-located.
  • monitoring the second PDCCH according to the second receiving parameter includes:
  • the QCL type is Type D quasi co-location, that is, QCL-Type D described above.
  • the first received parameter includes a search space used by the first PDCCH received, the first QCL parameter used by the received first PDCCH has a mapping relationship with the search space, and the second received parameter includes a second CORESET for monitoring the second PDCCH.
  • the first receiving parameter includes the listening occasion used by the first PDCCH received, the first QCL parameter used by the first PDCCH received has a mapping relationship with the above listening occasion number, and the second receiving parameter includes the second CORESET for listening to the second PDCCH. .
  • the terminal device may determine the second CORESET for monitoring the second PDCCH according to the monitoring timing of the first PDCCH; wherein, there is a mapping relationship between the monitoring timing number of the first PDCCH and the second CORESET. That is, that is, in this implementation manner, the terminal device may determine the first QCL parameter according to the listening timing of the first PDCCH, and then determine the second CORESET according to the first QCL parameter. For the specific determination process, refer to Mode 3.
  • the first five implementations all mainly introduce how to determine the second CORESET, which is parallel to the previous five implementations.
  • the terminal device uses any first receiving parameter to receive the first PDCCH, all CORESETs configured by the network device
  • the second PDCCH is monitored up, that is, the second receiving parameter includes a second CORESET for monitoring the second PDCCH, and the second CORESET is all the CORESET configured by the network device.
  • the terminal device specifically adopts any one of the above methods 1 to 5, or adopts method 6, which can be configured by the network device.
  • the network device can use high-level signaling, MAC-CE or downlink control information. Give instructions.
  • all the CORESETs configured by the network device mentioned above do not include the CORESET for monitoring the first PDCCH.
  • the second PDCCH mentioned above does not include the PDCCH scrambled using the same radio network temporary identity (RNTI) of the first PDCCH.
  • RNTI radio network temporary identity
  • the aforementioned monitoring of the second PDCCH on all the CORESETs configured by the network device includes: monitoring the second PDCCH on all the CORESETs configured by the network device according to the second TCI state or the second QCL parameter; wherein, the second TCI The state is the same as the first TCI state, the first TCI state is the TCI state used by the first PDCCH received; the second QCL parameter is the same as the first QCL parameter, and the first QCL parameter is the QCL parameter used by the first PDCCH received.
  • the terminal device performs the second TCI state or the second TCI state on all CORESETs.
  • the TCI state of all CORESETs can be adjusted to be the same as the first TCI state, or the QCL parameters of all CORESETs can be adjusted to be the same as the first QCL parameter.
  • receiving a first CORESET of the first PDCCH can instruct the terminal device to monitor the second PDCCH on all CORESETs in the activation period, saving the overhead of the first PDCCH.
  • the abscissa in Figure 2 represents the time domain, and the ordinate represents the frequency domain.
  • the abscissa in Figure 2 represents the time domain, and the ordinate represents the frequency domain.
  • there are 3 CORESETs that monitor the first PDCCH, as shown in Figure 2 1st CORESET, 2st CORESET And 3st CORESET.
  • the above three CORESETs are the same as the three CORESETs that the terminal device monitors the second PDCCH during the DRX activation period.
  • the terminal device uses the CORESET that monitors the first PDCCH to monitor the second PDCCH during the DRX activation period, and does not monitor the other two CORESETs.
  • This embodiment can reduce the power consumption of the terminal device monitoring the PDCCH during the activation period.
  • the terminal device monitors the first PDCCH on multiple CORESETs (two or three), the terminal device also uses these multiple CORESETs to monitor the second PDCCH during the DRX activation period.
  • the terminal device monitors the first PDCCH on any one or more of the CORESETs, the terminal device monitors the second PDCCH on all the configured CORESETs during the DRX activation period.
  • the abscissa in Figure 3 represents the time domain, and the ordinate represents the frequency domain.
  • there is one CORESET that monitors the first PDCCH and the terminal device is in the search space corresponding to the CORESET.
  • Multiple (three shown in Fig. 3) monitoring timings monitor the first PDCCH, and for these three monitoring timings, each monitoring timing uses a different QCL parameter.
  • the corresponding relationship between the monitoring timing and the QCL parameter may be predefined.
  • the time sequence of the monitoring timing corresponds to the TCI state/TCI state number corresponding to the CORESET number of the network configuration.
  • the terminal device monitors the first PDCCH at any one of the listening occasions, it is assumed that the first PDCCH is monitored at the 1st listening opportunity, and the 1st listening opportunity uses the first QCL parameter, then the terminal device is in the DRX During the activation period, the activated TCI state that is the same as the first QCL parameter is selected, and the second PDCCH is monitored on the CORESET corresponding to the activated TCI state, and the other CORESET is not monitored.
  • the terminal device will listen to the second CORESET on the CORESET with the largest/smallest number during the DRX activation period. PDCCH; or, the second PDCCH is monitored on the multiple CORESETs.
  • the terminal device selects multiple QCL parameters that are the same as the multiple QCL parameters during the DRX activation period. Activate the TCI state, monitor the second PDCCH on multiple CORESETs corresponding to the multiple activated TCI states, and not monitor on other CORESETs.
  • the three listening occasions in the second implementation example may be located in one search space; of course, they may also be located in different search spaces.
  • the network device sends the first PDCCH
  • the terminal device can be configured to receive the first PDCCH in multiple beam directions.
  • the first PDCCH is used to indicate that the network device has obtained channel and/or channel occupancy time information, etc.
  • the terminal device The second PDCCH can be monitored during the channel occupation time.
  • the terminal device uses one or more CORESETs to receive the first PDCCH, the terminal device only monitors the second PDCCH on the same CORESET as the first PDCCH within the channel occupation time.
  • the terminal device monitors the second PDCCH on part of the CORESET (referred to as the target CORESET in the following) within the channel occupation time.
  • the QCL relationship indicated by the TCI status of the target CORESET is the same as the QCL parameter (the QCL relationship) used by the CORESET that receives the first PDCCH.
  • the terminal device monitors the second PDCCH on all CORESETs configured by the network device within the channel occupation time.
  • the terminal device monitors the second PDCCH according to the second TCI state or the second QCL parameter on all CORESETs configured by the network device during the channel occupation time; wherein, the second TCI state and the first TCI state Same, the first TCI state is the TCI state of the first PDCCH; the second QCL parameter is the same as the first QCL parameter, and the first QCL parameter is the QCL parameter of the first PDCCH.
  • the terminal device monitors the QCL parameter of the first PDCCH on the CORESET, which can be obtained according to the TCI state of the CORESET; it can also directly be the QCL parameter corresponding to the search space or the monitoring timing.
  • the corresponding relationship between the search space or the monitoring timing and the QCL parameter may be predefined.
  • the search space number/the time sequence of the monitoring timing corresponds to the TCI state/TCI state number corresponding to the CORESET number.
  • the first PDCCH introduced in the previous embodiments of this specification may indicate at least one of the following information in addition to instructing the terminal device to monitor the second PDCCH:
  • the terminal equipment performs BWP switching of the bandwidth part
  • the terminal device activates or deactivates an object, and the object is a cell group or carrier group;
  • the terminal device stops PDCCH monitoring within a preset time period
  • the terminal equipment triggers the reporting of channel state information
  • the terminal equipment triggers the transmission of the sounding reference signal
  • the terminal equipment receives the tracking reference signal
  • the terminal equipment receives the channel state information reference signal
  • the terminal device performs at least one of beam management measurement, wireless link monitoring measurement, and wireless resource management measurement;
  • the terminal equipment performs uplink physical channel and/or power control parameters for physical signal transmission;
  • the terminal device activates different DRX configurations or search space configurations.
  • the terminal device determines the above information according to the DCI indication in the first PDCCH detected last time , And send or receive signals based on the above information.
  • the PDCCH monitoring method according to the embodiment of the present application is described in detail above in conjunction with FIG. 1 to FIG. 3.
  • the terminal device according to the embodiment of the present application will be described in detail below with reference to FIG. 4.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 4, the terminal device 400 includes:
  • the receiving module 402 may be used to receive a first PDCCH; wherein the first PDCCH is used to instruct the terminal device to monitor the second PDCCH;
  • the receiving parameter determining module 404 may be configured to determine the second receiving parameter of the second PDCCH according to the first receiving parameter of the first PDCCH;
  • the receiving module 402 may also be used to monitor the second PDCCH according to the second receiving parameter.
  • the terminal device determines the receiving parameter of the second PDCCH according to the receiving parameter of the first PDCCH, and monitors the second PDCCH according to the determined receiving parameter, wherein the first PDCCH is used to instruct the terminal device to monitor the second PDCCH .
  • the embodiment of the present application provides a solution for how to determine the receiving parameter of the PDCCH.
  • the terminal device can monitor the PDCCH according to the determined receiving parameter to improve communication performance.
  • the first receiving parameter includes at least one of the following of the first PDCCH:
  • the first transmission configuration of the first CORESET indicates the TCI state
  • the second receiving parameter includes at least one of the following:
  • the second QCL parameter of the second PDCCH is the second QCL parameter of the second PDCCH.
  • the receiving module 402 may be used to: receive the first PDCCH during the inactive period of discontinuous reception of DRX;
  • the receiving module 402 may be configured to monitor the second PDCCH according to the second receiving parameter during the active period of DRX.
  • the first PDCCH is also used to indicate channel occupation information of an unlicensed frequency band
  • the channel occupation information includes at least one of whether the channel is occupied or not and channel occupation time COT information.
  • the channel occupation information includes COT information
  • the receiving module 402 may be configured to monitor the second PDCCH according to the COT information and the second receiving parameter.
  • the first receiving parameter includes the number of the first CORESET of the first PDCCH
  • the second receiving parameter includes the second CORESET of monitoring the second PDCCH
  • the receiving parameter determining module 404 can be used for
  • serial number of the first CORESET is the same as the serial number of the second CORESET.
  • first CORESETs and multiple second CORESETs there are multiple first CORESETs and multiple second CORESETs; the numbers of the multiple first CORESETs are respectively the same as the numbers of the multiple second CORESETs.
  • the receiving module 402 may also be configured to monitor the second PDCCH on multiple second CORESETs.
  • the first receiving parameter includes the first TCI state of the first CORESET of the first PDCCH
  • the second receiving parameter includes monitoring the second CORESET of the second PDCCH
  • receiving The parameter determination module 404 may be configured to determine to monitor the second CORESET of the second PDCCH according to the first activated TCI state of the first CORESET of the first PDCCH;
  • the first activated TCI state of the first CORESET is the same as the second activated TCI state of the second CORESET.
  • first CORESETs and multiple second CORESETs there are multiple first CORESETs and multiple second CORESETs; the first activated TCI states of the multiple first CORESETs are different from those of the multiple second CORESETs.
  • the second active TCI state is the same.
  • the receiving module 402 may also be configured to monitor the second PDCCH on multiple second CORESETs.
  • the first CORESET is one.
  • multiple target CORESETs use the same activated TCI state.
  • the receiving module 402 can also be used to The second PDCCH is monitored on multiple CORESETs including the second CORESET.
  • the first receiving parameter includes a first QCL parameter of the first PDCCH
  • the second receiving parameter includes a second CORESET for monitoring the second PDCCH
  • the receiving parameter determination module 404 Can be used to determine the second CORESET for monitoring the second PDCCH according to the first QCL parameter of the first PDCCH
  • the QCL relationship of the first QCL parameter is the same as the QCL relationship indicated by the second TCI state of the second CORESET.
  • the receiving module 402 may also be used for
  • the QCL type of the first QCL parameter is type D quasi co-location
  • the type of QCL indicated by the second TCI status is Type D quasi co-location.
  • the second receiving parameter includes a second CORESET that monitors the second PDCCH, and a receiving parameter determination module 404, can be used for
  • the second receiving parameter includes a second CORESET for monitoring the second PDCCH, and a receiving parameter determination module 404. It may be used to determine a second CORESET for monitoring the second PDCCH according to the monitoring timing of the first PDCCH;
  • the receiving module 402 may also be used to monitor the second PDCCH on all CORESETs configured by the network device.
  • all CORESETs configured by the network device do not include CORESETs for monitoring the first PDCCH.
  • the receiving module 402 may also be used to monitor the second PDCCH according to the second TCI state or the second QCL parameter on all CORESETs configured by the network device;
  • the second TCI state is the same as the first TCI state, the first TCI state is the TCI state of the first PDCCH; the second QCL parameter is the same as the first QCL parameter, and the first QCL parameter Is the QCL parameter of the first PDCCH.
  • the receiving parameter determining module 404 may be configured to determine the second receiving of the second PDCCH according to the first receiving parameter of the first target PDCCH Parameters; wherein, the first target PDCCH is the last PDCCH detected among the plurality of first PDCCHs.
  • the terminal device 400 can refer to the process of the method 100 corresponding to the embodiment of the present application, and each unit/module in the terminal device 400 and the other operations and/or functions described above are used to implement the corresponding methods in the method 100.
  • Fig. 5 is a block diagram of a terminal device according to another embodiment of the present application.
  • the terminal device 500 shown in FIG. 5 includes: at least one processor 501, a memory 502, at least one network interface 504, and a user interface 503.
  • the various components in the terminal device 500 are coupled together through the bus system 505.
  • the bus system 505 is used to implement connection and communication between these components.
  • the bus system 505 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 505 in FIG. 5.
  • the user interface 503 may include a display, a keyboard, a pointing device (for example, a mouse, a trackball), a touch panel or a touch screen, etc.
  • the memory 502 in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (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
  • Synchronous DRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM Enhanced SDRAM, ESDRAM
  • Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
  • Synchlink DRAM Synchronous Link Dynamic Random Access Memory
  • SLDRAM Direct Rambus RAM
  • the memory 502 of the system and method described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 502 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: operating system 5021 and application programs 5022.
  • the operating system 5021 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 5022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
  • the program for implementing the method of the embodiment of the present application may be included in the application program 5022.
  • the terminal device 500 further includes: a computer program stored in the memory 502 and capable of running on the processor 501, and the computer program is executed by the processor 501 to implement the steps of the method 100 as follows.
  • the method disclosed in the foregoing embodiments of the present application may be applied to the processor 501 or implemented by the processor 501.
  • the processor 501 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 501 or instructions in the form of software.
  • the aforementioned processor 501 may be a general-purpose processor, a digital signal processor (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 gate 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 application 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 application 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 may 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.
  • the computer-readable storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and completes the steps of the foregoing method in combination with its hardware.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 501, each step of the above-mentioned method 100 embodiment is implemented.
  • the embodiments described in the embodiments of the present application may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processing (DSP), Digital Signal Processing Equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device Digital Signal Processing Equipment
  • PLD programmable Logic Device
  • PLD Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array
  • the technology described in the embodiments of the present application can be implemented through modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present application.
  • 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.
  • the terminal device 500 can implement the various processes implemented by the terminal device in the foregoing embodiments, and can achieve the same or equivalent technical effects. To avoid repetition, details are not described herein again.
  • the embodiment of the present application also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, each process of the above method embodiment 100 is realized, and the same technical effect can be achieved. To avoid repetition, I won’t repeat it 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.

Abstract

本申请实施例公开了一种PDCCH的监听方法和设备,用以确定PDCCH的接收参数,以根据确定出的接收参数监听PDCCH。该方法可以由终端设备执行,包括:接收第一PDCCH;其中,所述第一PDCCH用于指示所述终端设备监听第二PDCCH;根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;根据所述第二接收参数监听所述第二PDCCH。本申请实施例为如何确定PDCCH的接收参数提供一种方案,终端设备可以根据确定出的接收参数监听PDCCH,提高通信性能。

Description

PDCCH的监听方法和设备
相关申请的交叉引用
本申请主张在2019年08月16日在中国提交的中国专利申请号201910759874.8的优先权,其全部内容通过引用包含于此。
技术领域
本申请实施例涉及通信领域,尤其涉及一种物理下行控制信道(Physical Downlink Control Channel,PDCCH)的监听方法和设备。
背景技术
新空口(New Radio,NR)系统下,终端设备通常会配置多个接收参数,例如,配置多个控制资源集(Control Resource Set,CORESET)。在终端设备配置多个接收参数的情况下,终端设备应该使用哪些接收参数监听PDCCH需要明确。因此,如何提供一种PDCCH的监听方法,成为目前函待解决的技术问题。
发明内容
本申请实施例提供一种PDCCH的监听方法和设备,用以确定PDCCH的接收参数,以根据确定出的接收参数监听PDCCH。
第一方面,提供了一种PDCCH的监听方法,所述方法由终端设备执行,所述方法包括:
接收第一PDCCH;其中,所述第一PDCCH用于指示所述终端设备监听第二PDCCH;
根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;
根据所述第二接收参数监听所述第二PDCCH。
第二方面,提供了一种终端设备,该终端设备包括:
接收模块,用于接收第一PDCCH;其中,所述第一PDCCH用于指示所述终端设备监 听第二PDCCH;
接收参数确定模块,用于根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;
所述接收模块,还用于根据所述第二接收参数监听所述第二PDCCH。
第三方面,提供了一种终端设备,该终端设备包括处理器、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计算机程序,所述计算机程序被所述处理器执行时实现如第一方面所述的PDCCH的监听方法的步骤。
第四方面,提供了一种计算机可读存储介质,所述计算机可读存储介质上存储计算机程序,所述计算机程序被处理器执行时实现如第一方面所述的PDCCH的监听方法的步骤。
在本申请上述至少一个实施例中,终端设备根据第一PDCCH的接收参数确定第二PDCCH的接收参数,并根据确定出的接收参数监听第二PDCCH,其中,第一PDCCH用于指示终端设备监听第二PDCCH。本申请实施例为如何确定PDCCH的接收参数提供一种方案,终端设备可以根据确定出的接收参数监听PDCCH,提高通信性能。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是根据本申请的一个实施例的PDCCH的监听方法的示意性流程图;
图2是根据本申请的一个实施例的CORESET示意图;
图3是根据本申请的一个实施例的监听时机示意图;
图4是根据本申请的一个实施例的终端设备的结构示意图;
图5是根据本申请的另一个实施例的终端设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然,所描述的实施例仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,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,都属于本申请保护的范围。本说明书各个实施例中的“和/或”表示前后两者中的至少一个。
应理解,本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)或全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、5G NR系统,或者为后续演进通信系统。
在本申请实施例中,终端设备可以包括但不限于移动台(Mobile Station,MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、用户设备(User Equipment,UE)、手机(handset)及便携设备(portable equipment)、车辆(vehicle)等,该终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,例如,终端设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等,终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
如图1所示,本申请的一个实施例提供一种PDCCH的监听方法100,该方法可以由终端设备执行,换言之,该方法可以由安装在终端设备的软件或硬件来执行,该方法包括如下步骤:
S102:接收第一PDCCH,第一PDCCH用于指示终端设备监听第二PDCCH。
可选地,在一种实施方式中,该实施例可以应用在非连续接收(Discontinuous Reception,DRX)的场景中,其中,第一PDCCH携带唤醒信号(Wake Up Signal,WUS)。在该实施方式中,终端设备可以在DRX之前检测唤醒信号:若终端设备检测到该唤醒信号,即接收到第一PDCCH,终端设备后续在DRX的激活期进行第二PDCCH的监听;若终端设备没有检测到唤醒信号,则终端设备不在DRX的激活期进行第二PDCCH的监听,即跳过该DRX继续休眠。或者使用另外一种实施方式,第一PDCCH携带睡眠指示信号(Go to sleep,GTS),若终端设备没有检测到该睡眠指示信号,即没有接收到第一PDCCH,终端设备后续在DRX的激活期进行第二PDCCH的监听;若终端设备检测到了睡眠指示信号,则终端设备不在DRX的激活期进行第二PDCCH的监听,即跳过该DRX继续休眠。
可选地,在另一种实施方式中,该实施例可以应用在非授权频段的场景中,第一PDCCH可以用于指示非授权频段上的信道占用信息,该信道占用信息包括信道是否被占用以及信道占用时间(Channel Occupation Time,COT)信息的至少之一。具体例如,信道占用信息包括信道未被占用的指示信息;又例如,信道占用信息包括信道被占用的指示信息和COT信息;再例如,信道占用信息仅包括COT信息。
上述COT信息可以包括信道占用的起始时刻;信道占用的结束时刻;信道的占用时间;对话前监听(Listen Before Talk,LBT)等级以及LBT优先级的至少之一。
S104:根据第一PDCCH的第一接收参数,确定第二PDCCH的第二接收参数。
可选地,第一接收参数包括下述至少之一:
1)接收第一PDCCH的第一控制资源集(Control Resource Set,CORESET)的编号(ID,或称标识)。
该实施例中,终端设备可以在一个或多个CORESET上监听第一PDCCH,在CORESET中封装有PDCCH在频域上占据的频段和时域上占用的OFDM符号数等信息。
该处的第一CORESET可以是接收到第一PDCCH的CORESET,第一CORESET可以是一个或多个。
2)接收到第一PDCCH的第一CORESET的第一传输配置指示(Transmission Configuration Indication,TCI)状态(state)。
终端设备的每个CORESET(包括上述第一CORESET)可以配置一个或者多个TCI状态。如果第一CORESET配置了多个TCI状态,网络设备可以通过MAC-CE激活一个TCI状态,也即,在同一时刻,一个CORESET对应一个激活TCI状态。
通常,TCI状态可以用于指示不同的参考信号、物理信道之间满足准共址(quasi colocation,QCL)关系,包括如下QCL类型:
QCL-类型A:{多普勒偏移、多普勒扩展、平均时延、时延扩展};
QCL-类型B:{多普勒偏移、多普勒扩展};
QCL-类型C:{多普勒偏移、平均时延};
QCL-类型D:{空间Rx参数},用于辅助终端设备接收。
3)接收第一PDCCH使用的第一准共址(Quasi-Co-Location,QCL)参数(assumption)。
4)接收第一PDCCH使用的搜索空间(search space)。
通常,CORESET和搜索空间存在映射关系,搜索空间中封装有PDCCH的起始OFDM符号编号以及PDCCH监测周期等信息。
5)接收第一PDCCH的监听时机(monitoring occasion)。
可选地,第二接收参数包括下述至少之一:
1)监听第二PDCCH的第二CORESET。
2)监听第二PDCCH使用的第二TCI状态。
3)监听第二PDCCH使用的第二QCL参数。
可选地,在其他的实施例中,第一接收参数还可以包括是否接收到第一PDCCH;相应地,第二接收参数可以包括是否需要进行第二PDCCH的监听。
具体例如,如果在DRX之前接收到唤醒信号,即接收到第一PDCCH,则后续在DRX的激活期需要进行第二PDCCH的监听;如果在DRX之前没有接收到唤醒信号,即没有接收到第一PDCCH,则后续在DRX的激活期不需要进行第二PDCCH的监听。
又例如,如果在DRX之前没有接收到睡眠指示信号,即没有接收到第一PDCCH,则后续在DRX的激活期需要进行第二PDCCH的监听;如果在DRX之前接收到睡眠指示信号,即接收到第一PDCCH,则后续在DRX的激活期不需要进行第二PDCCH的监听。
可选地,如果在S102中接收到的第一PDCCH为多个,该步骤具体可以根据第一目标PDCCH的第一接收参数,确定第二PDCCH的第二接收参数;其中,第一目标PDCCH是多个第一PDCCH中最后检测到的一个PDCCH。
S106:根据第二接收参数监听第二PDCCH。
可选地,在一种实施方式中,S102中的接收第一PDCCH包括:在DRX的非激活期接收第一PDCCH,这样,S106具体可以是在DRX的激活期,根据第二接收参数监听第二PDCCH。
可选地,在另一种实施方式中,第一PDCCH可以用于指示非授权频段上的信道占用信息,该信道占用信息包括COT信息,这样,S106具体可以是根据COT信息和第二接收参数监听第二PDCCH,例如,在COT信息指示的信道占用时间内,根据第二接收参数监听第二PDCCH。
本申请实施例提供的PDCCH的监听方法,终端设备根据第一PDCCH的接收参数确定第二PDCCH的接收参数,并根据确定出的接收参数监听第二PDCCH,其中,第一PDCCH用于指示终端设备监听第二PDCCH。本申请实施例为如何确定PDCCH的接收参数提供一种方案,终端设备可以根据确定出的接收参数监听PDCCH,提高通信性能。
对于前文实施例的S104中提到的根据第一PDCCH的第一接收参数,确定第二PDCCH的第二接收参数,以下将结合几个具体的实施方式进行介绍。
实施方式一
第一接收参数包括接收到第一PDCCH的第一CORESET的编号,第二接收参数包括监听第二PDCCH的第二CORESET。
该实施方式中,终端设备可以根据第一PDCCH的第一CORESET的编号,确定监听第二PDCCH的第二CORESET;其中,第一CORESET的编号与第二CORESET的编号相同,也即,该实施方式中,使用与第一PDCCH所在CORESET的编号相同的CORESET监听第二PDCCH。
优选地,该实施方式中,接收到第一PDCCH的第一CORESET为多个,这样,监听第二PDCCH的第二CORESET也为多个,多个第一CORESET的编号分别与多个第二CORESET的编号相同。可选地,这多个第一CORESET与多个第二CORESET分别相同。
该实施方式可以在多个第二CORESET上分别监听第二PDCCH。由于在多个第二CORESET上监听第二PDCCH,提高第二PDCCH的接收性能。
该实施方式应用在DRX的场景中时,第一PDCCH携带唤醒信号,考虑到终端设备如果在DRX周期之前没有成功接收到第一PDCCH,终端设备将跳过该DRX继续休眠,影响第二PDCCH的接收性能。该实施方式由于在多个第一CORESET上接收到第一PDCCH,保证第一PDCCH的接收性能,同样,保证了DRX激活期的第二PDCCH的接收性能。
可选地,该实施方式中,接收到第一PDCCH的第一CORESET为一个或多个,终端设备在网络设备配置的所有CORESET上监听第二PDCCH。
例如,如果接收到第一PDCCH的第一CORESET为一个,则终端设备在网络设备配置的所有CORESET上监听第二PDCCH。在这种实施方式中,一个第一CORESET指示终端设备在激活期的多个第二CORESET上监听第二PDCCH,可以节省第一PDCCH的开销。
实施方式二
第一接收参数包括接收到第一PDCCH的第一CORESET的第一TCI状态,第二接收参数包括监听第二PDCCH的第二CORESET。
该实施方式中,终端设备可以根据第一PDCCH的第一CORESET的第一激活TCI状态,确定监听第二PDCCH的第二CORESET;其中,第一CORESET的第一激活TCI状态与第二CORESET的第二激活TCI状态相同,即,该实施方式中,终端设备可以选择与第一激活TCI状态相同的第二激活TCI状态,在第二激活TCI状态所对应的CORESET上进行第二PDCCH的监听。
优选地,该实施方式中,接收到第一PDCCH的第一CORESET为多个,这样,监听第二PDCCH的第二CORESET也为多个;多个第一CORESET的第一激活TCI状态分别与多个第二CORESET的第二激活TCI状态相同。
可选地,该实施方式中的第一CORESET为额外(additional)CORESET,该额外CORESET用于接收唤醒信号,第一CORESET与第二CORESET是不同的CORESET。
该实施方式可以在多个第二CORESET上分别监听第二PDCCH。由于在多个第二CORESET上监听第二PDCCH,提高第二PDCCH的接收性能。
可选地,该实施方式中,接收到第一PDCCH第一CORESET为一个,监听第一PDCCH的CORESET中,有多个目标CORESET使用相同的激活TCI状态,在这种情况下,确定出的第二CORESET可能是一个也可能是多个:
如果确定出的第二CORESET是一个,终端设备可以在包括第二CORESET的多个CORESET上监听第二PDCCH,这多个CORESET的激活TCI状态可以相同。该实施例中,终端设备还可以将这多个CORESET(除了第二CORESET)的激活TCI状态调整为和第 二CORESET的激活TCI状态相同。
如果确定出的第二CORESET是多个,终端设备可以在这多个第二CORESET上监听第二PDCCH,这多个第二CORESET的激活TCI状态相同。
实施方式三
第一接收参数包括接收到第一PDCCH使用的第一QCL参数,第二接收参数包括监听第二PDCCH的第二CORESET。
该实施方式中,终端设备可以根据第一PDCCH的第一QCL参数,确定监听第二PDCCH的第二CORESET;其中,第一QCL参数的QCL关系与第二CORESET的第二TCI状态指示的QCL关系相同。也即,该实施方式中,终端设备可以选择第二激活TCI状态,其中,第二激活TCI状态指示的QCL关系和第一QCL参数的QCL关系相同;然后在第二激活TCI状态所对应的CORESET上监听第二PDCCH。
本说明书各个实施例中提到的QCL关系可以是指两个端口之间部分参数是准共址的。
优选地,该实施方式中,第二CORESET为多个,根据第二接收参数监听第二PDCCH包括:
在多个第二CORESET中的编号最小的CORESET上监听第二PDCCH;或
在多个第二CORESET中的编号最大的CORESET上监听第二PDCCH;或
在多个第二CORESET上均监听第二PDCCH。
可选地,对于接收到第一PDCCH使用的第一QCL参数,其QCL类型为类型D准共址,即前文介绍的QCL-类型D。
可选地,对于第二TCI状态指示的QCL(关系),其QCL类型为类型D准共址,即前文介绍的QCL-类型D。
实施方式四
第一接收参数包括接收到第一PDCCH使用的搜索空间,接收到第一PDCCH使用的第一QCL参数与上述搜索空间存在映射关系,第二接收参数包括监听所述第二PDCCH的第二CORESET。
该实施方式中,终端设备可以根据第一PDCCH的搜索空间,确定监听第二PDCCH的第二CORESET;其中,第一PDCCH的搜索空间与第二CORESET存在映射关系。也即,该实施方式中,终端设备可以根据第一PDCCH的搜索空间确定第一QCL参数,再根据第一QCL参数确定第二CORESET,具体的确定过程参见方式三。
实施方式五
第一接收参数包括接收到第一PDCCH使用的监听时机,接收到第一PDCCH使用的第一QCL参数与上述监听时机编号存在映射关系,第二接收参数包括监听所述第二PDCCH的第二CORESET。
该实施方式中,终端设备可以根据第一PDCCH的监听时机,确定监听第二PDCCH的第二CORESET;其中,第一PDCCH的监听时机编号与第二CORESET存在映射关系。也即,也即,该实施方式中,终端设备可以根据第一PDCCH的监听时机确定第一QCL参数,再根据第一QCL参数确定第二CORESET,具体的确定过程参见方式三。
实施方式六
前文五种实施方式均主要介绍如何确定第二CORESET,与前文五种实施方式并列,可选地,终端设备使用任意的第一接收参数接收到第一PDCCH后,在网络设备配置的所有的CORESET上监听第二PDCCH,也即,第二接收参数包括监听第二PDCCH的第二CORESET,第二CORESET是网络设备配置的所有的CORESET。
可选地,终端设备具体采用上述方式一至方式五的任意一种,或者是采用方式六,均可以是由网络设备配置,具体地,网络设备可以通过高层信令,MAC-CE或下行控制信息进行指示。
可选地,上述提到的网络设备配置的所有CORESET,不包括监听第一PDCCH的CORESET。
可选地,上述提到的第二PDCCH,不包括使用第一PDCCH相同无线网络临时标识(Radio Network Temporary Identity,RNTI)加扰的PDCCH。
可选地,上述提到的在网络设备配置的所有CORESET上监听第二PDCCH包括:在网络设备配置的所有CORESET上根据第二TCI状态或第二QCL参数监听第二PDCCH; 其中,第二TCI状态和第一TCI状态相同,第一TCI状态是接收到第一PDCCH使用的TCI状态;第二QCL参数和第一QCL参数相同,第一QCL参数是接收到第一PDCCH使用的QCL参数。
该实施方式中,如果接收到第一PDCCH使用的第一CORESET为一个,即上述第一TCI状态为一个,上述第一QCL参数为一个,终端设备在所有CORESET上根据第二TCI状态或第二QCL参数监听第二PDCCH之前,还可以将所有CORESET的TCI状态调整为和第一TCI状态相同,或将所有CORESET的QCL参数调整为和第一QCL参数相同。
在这种实施方式六中,接收到第一PDCCH的一个第一CORESET可以指示终端设备在激活期的全部CORESET上监听第二PDCCH,节省第一PDCCH的开销。
为详细说明本申请上述各个实施例介绍的PDCCH的监听方法,以下将结合几个具体的实施实例进行介绍。
实施实例一
如图2所示,图2中的横坐标代表时域,纵坐标代表频域,在DRX的非激活期,监听第一PDCCH的CORESET为3个,见图2所示的1st CORESET、2st CORESET和3st CORESET。
上述三个CORESET和DRX激活期终端设备监听第二PDCCH的3个CORESET相同。
该实施例中,如果终端设备在其中的任意一个CORESET上监听到第一PDCCH,则终端设备在DRX激活期,使用监听到第一PDCCH的CORESET监听第二PDCCH,其他的两个CORESET上不监听,该实施方式可以降低终端设备在激活期监听PDCCH的功耗。
如果终端设备在多个CORESET(两个或三个)上监听到第一PDCCH,则终端设备在DRX激活期,也使用这多个CORESET上监听第二PDCCH。
可选地,如果终端设备在其中的任意一个或多个CORESET上监听到第一PDCCH,则终端设备在DRX激活期,在配置的全部CORESET上监听第二PDCCH。
实施实例二
如图3所示,图3中的横坐标代表时域,纵坐标代表频域,在DRX的非激活期,监 听第一PDCCH的CORESET为1个,终端设备在该CORESET对应的搜索空间中的多个(图3中显示3个)监听时机监听第一PDCCH,这3个监听时机,每个监听时机使用不同的QCL参数。
其中,监听时机和QCL参数的对应关系可以是预定义的,例如,监听时机的时间顺序和网络配置的CORESET编号对应的TCI状态/TCI状态编号相对应。
该实施例中,如果终端设备在其中的任意一个监听时机上监听到第一PDCCH,假设是在1st监听时机监听到第一PDCCH,该1st监听时机使用了第一QCL参数,则终端设备在DRX激活期,选择和该第一QCL参数相同的激活TCI状态,在该激活TCI状态对应的CORESET上监听第二PDCCH,其他的CORESET上不监听。
可选地,若有多个CORESET满足上述条件,即和第一QCL参数相同的激活TCI状态对应的CORESET为多个,则终端设备在DRX激活期,在编号最大/最小的CORESET上监听第二PDCCH;或者,在上述多个CORESET上均监听第二PDCCH。
可选地,如果终端设备在多个监听时机上监听到第一PDCCH,这多个监听时机分别使用不同的QCL参数,则终端设备在DRX激活期,选择和多个QCL参数分别相同的多个激活TCI状态,在该多个激活TCI状态对应的多个CORESET上监听第二PDCCH,其他的CORESET上不监听。
可选地,该实施实例二中的3个监听时机可以是位于一个搜索空间中;当然,也可以是分别位于不同的搜索空间中。
实施实例三,适用于非授权频段
该实施例中,网络设备发送第一PDCCH,可以配置终端设备在多个波束方向上进行第一PDCCH接收,第一PDCCH用于指示网络设备获得了信道和/或信道占用时间信息等,终端设备可以在信道占用时间内监听第二PDCCH。
若终端设备使用一个或者多个CORESET接收到第一PDCCH,则终端设备在信道占用时间内,仅在与接收到第一PDCCH相同的CORESET上监听第二PDCCH。
可选地,若终端设备使用一个或者多个CORESET接收到第一PDCCH,则终端设备在信道占用时间内,在部分CORESET(后续称为目标CORESET)上监听第二PDCCH。
该目标CORESET的TCI状态指示的QCL关系和接收到第一PDCCH的CORESET使用的QCL参数(的QCL关系)相同。
如果多个目标CORESET满足上述要求,则只在其中编号最大或者最小的CORESET上监听第二PDCCH;或者在所有的目标CORESET上监听第二PDCCH。
可选地,终端设备在信道占用时间内,在网络设备配置的所有CORESET上监听第二PDCCH。
可选地,终端设备在信道占用时间内,在网络设备配置的所有CORESET上根据第二TCI状态或第二QCL参数监听所述第二PDCCH;其中,所述第二TCI状态和第一TCI状态相同,所述第一TCI状态是所述第一PDCCH的TCI状态;所述第二QCL参数和第一QCL参数相同,所述第一QCL参数是所述第一PDCCH的QCL参数。
在该实施例中,终端设备在CORESET上监听第一PDCCH的QCL参数,可以根据该CORESET的TCI状态得到;还可以直接是搜索空间或监听时机对应的QCL参数。其中,搜索空间或监听时机和QCL参数的对应关系可以是预定义的,例如,搜索空间的编号/监听时机的时间顺序和CORESET编号对应的TCI状态/TCI状态编号对应。
可选地,本说明书前文各个实施例中介绍到的第一PDCCH,除了指示终端设备监听第二PDCCH之外,还可以指示如下信息中的至少之一:
1)终端设备进行带宽部分BWP切换;
2)终端设备进行对象的激活或去激活,所述对象为小区群组或载波群组;
3)终端设备在预设时间段内停止PDCCH监听;
4)传输(最大)层数的改变
5)时隙的结构;
6)终端设备触发信道状态信息上报;
7)终端设备触发探测参考信号发送;
8)终端设备进行跟踪参考信号的接收;
9)终端设备进行信道状态信息参考信号的接收;
10)终端设备进行波束管理的测量、无线链路监测的测量和无线资源管理测量中的至少一项;
11)在新空口非授权频段中信道占用时间的总时间长度、剩余时间长度和信道接入优先级中的至少一项;
12)终端设备进行上行的物理信道和/或物理信号发送的功率控制参数;
13)终端设备激活不同的DRX配置或搜索空间配置。
可选地,若终端设备检测到多个第一PDCCH,且不同的第一PDCCH中,DCI指示的上述信息不同,那么终端设备根据最近一次检测到的第一PDCCH中的DCI指示,确定上述信息,并根据上述信息进行信号的发送或者接收。
以上结合图1至图3详细描述了根据本申请实施例的PDCCH的监听方法。下面将结合图4详细描述根据本申请实施例的终端设备。
图4是根据本申请实施例的终端设备的结构示意图。如图4所示,终端设备400包括:
接收模块402,可以用于接收第一PDCCH;其中,所述第一PDCCH用于指示所述终端设备监听第二PDCCH;
接收参数确定模块404,可以用于根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;
所述接收模块402,还可以用于根据所述第二接收参数监听所述第二PDCCH。
在本申请实施例中,终端设备根据第一PDCCH的接收参数确定第二PDCCH的接收参数,并根据确定出的接收参数监听第二PDCCH,其中,第一PDCCH用于指示终端设备监听第二PDCCH。本申请实施例为如何确定PDCCH的接收参数提供一种方案,终端设备可以根据确定出的接收参数监听PDCCH,提高通信性能。
可选地,作为一个实施例,所述第一接收参数包括所述第一PDCCH的下述至少之一:
是否检测到第一PDCCH;
第一控制资源集CORESET的编号;
第一CORESET的第一传输配置指示TCI状态;
第一准共址QCL参数;
搜索空间;
监听时机。
可选地,作为一个实施例,所述第二接收参数包括下述至少之一:
是否进行第二PDCCH的监听;
监听所述第二PDCCH的第二CORESET;
所述第二PDCCH的第二TCI状态;
所述第二PDCCH的第二QCL参数。
可选地,作为一个实施例,接收模块402,可以用于:在非连续接收DRX的非激活期接收第一PDCCH;
接收模块402,可以用于在DRX的激活期根据所述第二接收参数监听所述第二PDCCH。
可选地,作为一个实施例,所述第一PDCCH还用于指示非授权频段的信道占用信息;
其中,所述信道占用信息包括信道是否被占用以及信道占用时间COT信息的至少之一。
可选地,作为一个实施例,所述信道占用信息包括COT信息,接收模块402,可以用于根据所述COT信息以及所述第二接收参数监听所述第二PDCCH。
可选地,作为一个实施例,所述第一接收参数包括所述第一PDCCH的第一CORESET的编号,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,接收参数确定模块404,可以用于
根据所述第一PDCCH的第一CORESET的编号,确定监听所述第二PDCCH的第二CORESET;
其中,所述第一CORESET的编号与所述第二CORESET的编号相同。
可选地,作为一个实施例,所述第一CORESET为多个,所述第二CORESET为多个;多个所述第一CORESET的编号分别与多个所述第二CORESET的编号相同。
可选地,作为一个实施例,所述接收模块402,还可以用于在多个所述第二CORESET上监听所述第二PDCCH。
可选地,作为一个实施例,所述第一接收参数包括所述第一PDCCH的第一CORESET的第一TCI状态,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,接收参数确定模块404,可以用于根据所述第一PDCCH的第一CORESET的第一激活TCI状态,确定监听所述第二PDCCH的第二CORESET;
其中,所述第一CORESET的第一激活TCI状态与所述第二CORESET的第二激活TCI状态相同。
可选地,作为一个实施例,所述第一CORESET为多个,所述第二CORESET为多个;多个所述第一CORESET的第一激活TCI状态分别与多个所述第二CORESET的第二激活TCI状态相同。
可选地,作为一个实施例,所述接收模块402,还可以用于在多个所述第二CORESET上监听所述第二PDCCH。
可选地,作为一个实施例,所述第一CORESET为一个,监听所述第一PDCCH的CORESET中,有多个目标CORESET使用相同的激活TCI状态,所述接收模块402,还可以用于在包括所述第二CORESET的多个CORESET上监听所述第二PDCCH。
可选地,作为一个实施例,所述第一接收参数包括所述第一PDCCH的第一QCL参数,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,接收参数确定模块404,可以用于根据第一PDCCH的第一QCL参数,确定监听所述第二PDCCH的第二CORESET;
其中,所述第一QCL参数的QCL关系与所述第二CORESET的第二TCI状态指示的QCL关系相同。
可选地,作为一个实施例,所述第二CORESET为多个,所述接收模块402,还可以用于
在多个所述第二CORESET中的编号最小的CORESET上监听所述第二PDCCH;或
在多个所述第二CORESET中的编号最大的CORESET上监听所述第二PDCCH;或
在多个所述第二CORESET上监听所述第二PDCCH。
可选地,作为一个实施例,所述第一QCL参数的QCL类型为类型D准共址;
所述第二TCI状态指示的QCL的类型为类型D准共址。
可选地,作为一个实施例,所述第一QCL参数与所述第一PDCCH的搜索空间存在映射关系,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,接收参数确定模块404,可以用于
根据所述第一PDCCH的搜索空间,确定监听所述第二PDCCH的第二CORESET;
其中,所述第一PDCCH的搜索空间与所述第二CORESET存在映射关系。
可选地,作为一个实施例,所述第一QCL参数与所述第一PDCCH的监听时机存在映射关系,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,接收参数确定模块404,可以用于根据所述第一PDCCH的监听时机,确定监听所述第二PDCCH的第二CORESET;
其中,所述第一PDCCH的监听时机与所述第二CORESET存在映射关系。
可选地,作为一个实施例,所述接收模块402,还可以用于在网络设备配置的所有CORESET上监听所述第二PDCCH。
可选地,作为一个实施例,所述网络设备配置的所有CORESET不包括监听所述第一PDCCH的CORESET。
可选地,作为一个实施例,所述接收模块402,还可以用于在网络设备配置的所有CORESET上根据第二TCI状态或第二QCL参数监听所述第二PDCCH;
其中,所述第二TCI状态和第一TCI状态相同,所述第一TCI状态是所述第一PDCCH的TCI状态;所述第二QCL参数和第一QCL参数相同,所述第一QCL参数是所述第一PDCCH的QCL参数。
可选地,作为一个实施例,如果接收到的第一PDCCH为多个,接收参数确定模块404,可以用于根据第一目标PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;其中,所述第一目标PDCCH是多个所述第一PDCCH中最后检测到的一个PDCCH。
根据本申请实施例的终端设备400可以参照对应本申请实施例的方法100的流程,并且,该终端设备400中的各个单元/模块和上述其他操作和/或功能分别为了实现方法100中的相应流程,并且能够达到相同或等同的技术效果,为了简洁,在此不再赘述。
图5是本申请另一个实施例的终端设备的框图。图5所示的终端设备500包括:至少一个处理器501、存储器502、至少一个网络接口504和用户接口503。终端设备500中的各个组件通过总线系统505耦合在一起。可理解,总线系统505用于实现这些组件之间的连接通信。总线系统505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5中将各种总线都标为总线系统505。
其中,用户接口503可以包括显示器、键盘、点击设备(例如,鼠标,轨迹球(trackball))、触感板或者触摸屏等。
可以理解,本申请实施例中的存储器502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(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例描述的系统和方法的存储器502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502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5021和应用程序5022。
其中,操作系统5021,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5022,包含各种应用程序,例如媒 体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本申请实施例方法的程序可以包含在应用程序5022中。
在本申请实施例中,终端设备500还包括:存储在存储器上502并可在处理器501上运行的计算机程序,计算机程序被处理器501执行时实现如下方法100的步骤。
上述本申请实施例揭示的方法可以应用于处理器501中,或者由处理器501实现。处理器501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501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501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申请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。结合本申请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502,处理器501读取存储器502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,计算机程序被处理器501执行时实现如上述方法100实施例的各步骤。
可以理解的是,本申请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专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,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,可通过执行本申请实施例所述功能的模块(例如过程、函数等)来实现本申请实施例所述的技术。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。
终端设备500能够实现前述实施例中终端设备实现的各个过程,并且能够达到相同或等同的技术效果,为避免重复,这里不再赘述。
本申请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100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。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (25)

  1. 一种物理下行控制信道PDCCH的监听方法,所述方法由终端设备执行,所述方法包括:
    接收第一PDCCH;其中,所述第一PDCCH用于指示所述终端设备监听第二PDCCH;
    根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;
    根据所述第二接收参数监听所述第二PDCCH。
  2. 如权利要求1所述的方法,其中,所述第一接收参数包括所述第一PDCCH的下述至少之一:
    第一控制资源集CORESET的编号;
    第一CORESET的第一传输配置指示TCI状态;
    第一准共址QCL参数;
    搜索空间;
    监听时机。
  3. 如权利要求1所述的方法,其中,所述第二接收参数包括下述至少之一:
    监听所述第二PDCCH的第二CORESET;
    所述第二PDCCH的第二TCI状态;
    所述第二PDCCH的第二QCL参数。
  4. 如权利要求1所述的方法,其中,
    所述接收第一PDCCH包括:在非连续接收DRX的非激活期接收第一PDCCH;
    所述根据所述第二接收参数监听所述第二PDCCH包括:在DRX的激活期根据所述第二接收参数监听所述第二PDCCH。
  5. 如权利要求1所述的方法,其中,所述第一PDCCH还用于指示非授权频段的信道占用信息;
    其中,所述信道占用信息包括信道是否被占用以及信道占用时间COT信息的至少之一。
  6. 如权利要求5所述的方法,其中,所述信道占用信息包括COT信息,所述根 据所述第二接收参数监听所述第二PDCCH包括:
    根据所述COT信息以及所述第二接收参数监听所述第二PDCCH。
  7. 如权利要求1至6任一项所述的方法,其中,所述第一接收参数包括所述第一PDCCH的第一CORESET的编号,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,所述根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数包括:
    根据所述第一PDCCH的第一CORESET的编号,确定监听所述第二PDCCH的第二CORESET;
    其中,所述第一CORESET的编号与所述第二CORESET的编号相同。
  8. 如权利要求7所述的方法,其中,所述第一CORESET为多个,所述第二CORESET为多个;多个所述第一CORESET的编号分别与多个所述第二CORESET的编号相同。
  9. 如权利要求8所述的方法,其中,所述根据所述第二接收参数监听所述第二PDCCH包括:
    在多个所述第二CORESET上监听所述第二PDCCH。
  10. 如权利要求1至6任一项所述的方法,其中,所述第一接收参数包括所述第一PDCCH的第一CORESET的第一TCI状态,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,所述根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数包括:
    根据所述第一PDCCH的第一CORESET的第一激活TCI状态,确定监听所述第二PDCCH的第二CORESET;
    其中,所述第一CORESET的第一激活TCI状态与所述第二CORESET的第二激活TCI状态相同。
  11. 如权利要求10所述的方法,其中,所述第一CORESET为多个,所述第二CORESET为多个;多个所述第一CORESET的第一激活TCI状态分别与多个所述第二CORESET的第二激活TCI状态相同。
  12. 如权利要求11所述的方法,其中,所述根据所述第二接收参数监听所述第二 PDCCH包括:
    在多个所述第二CORESET上监听所述第二PDCCH。
  13. 如权利要求10所述的方法,其中,所述第一CORESET为一个,监听所述第一PDCCH的CORESET中,有多个目标CORESET使用相同的激活TCI状态,所述根据所述第二接收参数监听所述第二PDCCH包括:
    在包括所述第二CORESET的多个CORESET上监听所述第二PDCCH。
  14. 如权利要求1至6任一项所述的方法,其中,所述第一接收参数包括所述第一PDCCH的第一QCL参数,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,所述根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数包括:
    根据第一PDCCH的第一QCL参数,确定监听所述第二PDCCH的第二CORESET;
    其中,所述第一QCL参数的QCL关系与所述第二CORESET的第二TCI状态指示的QCL关系相同。
  15. 如权利要求14所述的方法,其中,所述第二CORESET为多个,所述根据所述第二接收参数监听所述第二PDCCH包括:
    在多个所述第二CORESET中的编号最小的CORESET上监听所述第二PDCCH;或
    在多个所述第二CORESET中的编号最大的CORESET上监听所述第二PDCCH;或
    在多个所述第二CORESET上监听所述第二PDCCH。
  16. 如权利要求14所述的方法,其中,
    所述第一QCL参数的QCL类型为类型D准共址;
    所述第二TCI状态指示的QCL的类型为类型D准共址。
  17. 如权利要求14所述的方法,其中,所述第一QCL参数与所述第一PDCCH的搜索空间存在映射关系,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,所述根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数包括:
    根据所述第一PDCCH的搜索空间,确定监听所述第二PDCCH的第二CORESET;
    其中,所述第一PDCCH的搜索空间与所述第二CORESET存在映射关系。
  18. 如权利要求14所述的方法,其中,所述第一QCL参数与所述第一PDCCH的监听时机存在映射关系,所述第二接收参数包括监听所述第二PDCCH的第二CORESET,所述根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数包括:
    根据所述第一PDCCH的监听时机,确定监听所述第二PDCCH的第二CORESET;
    其中,所述第一PDCCH的监听时机与所述第二CORESET存在映射关系。
  19. 如权利要求1-6任一项所述的方法,其中,所述方法还包括:在网络设备配置的所有CORESET上监听所述第二PDCCH。
  20. 如权利要求19所述的方法,其中,所述网络设备配置的所有CORESET不包括监听所述第一PDCCH的CORESET。
  21. 如权利要求19所述的方法,其中,所述在网络设备配置的所有CORESET上监听所述第二PDCCH包括:
    在网络设备配置的所有CORESET上根据第二TCI状态或第二QCL参数监听所述第二PDCCH;
    其中,所述第二TCI状态和第一TCI状态相同,所述第一TCI状态是所述第一PDCCH的TCI状态;所述第二QCL参数和第一QCL参数相同,所述第一QCL参数是所述第一PDCCH的QCL参数。
  22. 如权利要求1至4任一项所述的方法,其中,如果所述第一PDCCH为多个,所述根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数包括:
    根据第一目标PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;
    其中,所述第一目标PDCCH是多个所述第一PDCCH中最后检测到的。
  23. 一种终端设备,包括:
    接收模块,用于接收第一PDCCH;其中,所述第一PDCCH用于指示所述终端设备监听第二PDCCH;
    接收参数确定模块,用于根据所述第一PDCCH的第一接收参数,确定所述第二PDCCH的第二接收参数;
    所述接收模块,还用于根据所述第二接收参数监听所述第二PDCCH。
  24. 一种终端设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至22中任一项所述的PDCCH的监听方法的步骤。
  25. 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至22中任一项所述的PDCCH的监听方法的步骤。
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