WO2022179398A1 - Procédé et dispositif pour surveiller un canal physique de commande de liaison descendante - Google Patents

Procédé et dispositif pour surveiller un canal physique de commande de liaison descendante Download PDF

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Publication number
WO2022179398A1
WO2022179398A1 PCT/CN2022/075805 CN2022075805W WO2022179398A1 WO 2022179398 A1 WO2022179398 A1 WO 2022179398A1 CN 2022075805 W CN2022075805 W CN 2022075805W WO 2022179398 A1 WO2022179398 A1 WO 2022179398A1
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WIPO (PCT)
Prior art keywords
search space
information
space group
time domain
monitoring period
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PCT/CN2022/075805
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English (en)
Chinese (zh)
Inventor
薛祎凡
薛丽霞
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华为技术有限公司
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Publication of WO2022179398A1 publication Critical patent/WO2022179398A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and apparatus for monitoring a physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • the network device Before the network device and the terminal device perform data transmission, the network device sends data scheduling information, such as PDCCH, to the terminal device. To avoid losing scheduling information, the terminal device needs to monitor the PDCCH frequently according to the configuration of the network device. However, the frequent monitoring of the PDCCH by the terminal equipment may lead to high power consumption of the terminal equipment. At present, research on power consumption saving of terminal equipment is becoming more and more common, and detailed optimization schemes for reducing power consumption of terminal equipment have become the research direction of the industry.
  • data scheduling information such as PDCCH
  • the present application provides a PDCCH monitoring method and apparatus, which are used to specify how a terminal device monitors the PDCCH.
  • the present application provides a method for monitoring PDCCH.
  • the method may include: a network device determining first information, where the first information is used to instruct a terminal device not to monitor the PDCCH within a preset time domain length;
  • the preset time domain length is related to the search space group for monitoring the PDCCH;
  • the network device sends the first information to the terminal device; then, the terminal device executes the preset time domain according to the first information PDCCH is not monitored within the length.
  • the terminal device does not monitor the PDCCH within the preset time domain length indicated by the first information, which can reduce the power consumption of the terminal device, and since the preset time domain length is related to the search space group for monitoring the PDCCH, it can In the case where PDCCH skipping and search space group switching are indicated at the same time, the matching between the time domain length of skipping PDCCH and the monitoring period of the search space group is guaranteed.
  • the first information may also be used to indicate a search space group for monitoring the PDCCH.
  • the terminal equipment can monitor the PDCCH by skipping the PDCCH and switching the search space group, so that the terminal equipment can monitor the PDCCH more flexibly when the power consumption of the terminal equipment is reduced.
  • the first information may include a first indication field and a second indication field; wherein, when the first indication field is a first value, the preset time domain length may be the first time field length, the second indication field is used to instruct the terminal device not to monitor the PDCCH within the first time domain length; the first time domain length is related to the search space group in which the terminal device currently monitors the PDCCH; When the first indication field is a second value, the second indication field is used to instruct the terminal device to monitor the PDCCH according to the first search space group. In this way, it is possible to instruct the terminal device not to monitor the time domain length of the PDCCH or the terminal device to monitor the search space of the PDCCH through the two indication fields of the first information.
  • the first information includes A bits, and different values of the A bits correspond to different time domain lengths of the PDCCH not to be monitored, and/or different search space groups of the PDCCH to be monitored; A is An integer greater than or equal to 2. In this way, the terminal equipment can be accurately instructed to monitor the time domain length of the PDCCH and/or monitor the search space group of the PDCCH through the first information.
  • the first information when the first information indicates the second search space group, the value of the A bits corresponds to the second search space group and the second time domain length, and the second time domain Length is 0. In this way, it can be realized that the first information only indicates the search space for monitoring the PDCCH by configuring the preset time domain length as 0.
  • the monitoring period of the second search space group is greater than the monitoring period of the third search space group
  • the third search space group is a plurality of search spaces configured by the network device for the terminal device one of the group.
  • the monitoring period of the second search space group may be a preset period; or, the monitoring period of the second search space group may be a second monitoring period, wherein the second monitoring period may be the largest monitoring period or the smallest monitoring period among the monitoring periods of at least one search space included in the second search space group; or, the second monitoring period may be the search space in which the terminal device currently receives downlink control information or, the second monitoring period may be the maximum monitoring period or the minimum monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives downlink control information at the overlapping time domain positions of the multiple search spaces , or the monitoring period of the search space with the largest index value among the multiple search spaces, or the monitoring period of the search space with the smallest index value among the multiple search spaces. In this way, the monitoring period of the second search space group can be accurately determined.
  • the monitoring period of the third search space group may be a preset period; or, the monitoring period of the third search space group may be a third monitoring period, wherein the third monitoring period may be the largest monitoring period or the smallest monitoring period among the monitoring periods of at least one search space included in the third search space group; or, the third monitoring period may be the search space in which the terminal device currently receives downlink control information or, the third monitoring period may be the maximum monitoring period or the minimum monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives downlink control information at the overlapping time domain positions of the multiple search spaces. , or the monitoring period of the search space with the largest index value among the multiple search spaces, or the monitoring period of the search space with the smallest index value among the multiple search spaces. In this way, the monitoring period of the third search space group can be accurately determined.
  • the preset time-domain length may be one of a first time-domain length set, and the first time-domain length set is one of N time-domain length sets, where N is greater than 1 or
  • the preset time domain length may be an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH. In this way, a flexible configuration of the preset time domain length can be realized.
  • each time-domain length set in the N time-domain length sets is related to one search space group in the M search space groups, and the M search space groups are Configured by the terminal device, M is an integer greater than 1.
  • the monitoring period of the search space group may be a preset period; or, the monitoring period of the search space group may be the first monitoring period; wherein, the first monitoring period may be the The maximum monitoring period or the minimum monitoring period among the monitoring periods of at least one search space included in the search space group; or, the first monitoring period may be the monitoring period of the search space in which the terminal device currently receives downlink control information; Alternatively, the first monitoring period may be the largest monitoring period or the smallest monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives the downlink control information at the overlapping time domain positions of the multiple search spaces.
  • the monitoring period of the search space group can be accurately determined, and further, when the preset time domain length can be an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH, the monitoring period of the search space group can be accurately determined. the preset time domain length.
  • the starting position of the preset time domain length may be a first time domain position; the first time domain position may be a time slot where the terminal device receives the downlink control information; Alternatively, the first time domain position may be the next time slot of the time slot in which the terminal device receives the downlink control information; or, when the first monitoring period is at least one time slot included in the search space group
  • the first time domain position may be the search for the next largest monitoring period or the smallest monitoring period in the search space corresponding to the first monitoring period. The location of the monitoring PDCCH in space. In this way, the starting time of the terminal equipment not to monitor the PDCCH can be accurately determined.
  • the monitoring period of the search space group is a preset period, which may specifically be: the terminal device receives second information from the network device, where the second information is used to configure the monitoring of the PDCCH.
  • the monitoring period for the search space group is a preset period, which may specifically be: the terminal device receives second information from the network device, where the second information is used to configure the monitoring of the PDCCH.
  • the monitoring period for the search space group is a preset period, which may specifically be: the terminal device receives second information from the network device, where the second information is used to configure the monitoring of the PDCCH.
  • the search space group configuration information of the fourth search space group includes the second information
  • the second information includes the monitoring period of the fourth search space group
  • the fourth search space group One of a plurality of search space groups configured for the network device for the terminal device. In this way, the network device can configure the monitoring period for each search space group.
  • the second information includes at least one monitoring period; when the second information includes one monitoring period, the monitoring periods of the M search space groups are all the one monitoring period; the M The search space group is configured by the network device for the terminal device, and M is an integer greater than 1; when the second information includes M monitoring periods, the M search space groups and the M monitoring periods One-to-one correspondence. In this way, the network device can configure the monitoring period for each search space group.
  • the second information is included in bandwidth part configuration information or cell configuration information configured by the network device for the terminal device.
  • the second information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device, and the terminal device further receives fifth information of the network device, the The fifth information is also used to configure the monitoring period of the search space group monitoring the PDCCH.
  • the search space group configuration information of the seventh search space group includes the fifth information, and the fifth information includes the monitoring period of the seventh search space group, and the seventh search space group One of a plurality of search space groups configured for the network device for the terminal device.
  • the second information when the network device is configured with the second information but not configured with the fifth information, the second information includes a monitoring period, and the search space group corresponding to the second information The monitoring period is the one monitoring period.
  • the fifth information when the network device is configured with the second information and also configured with the fifth information, the fifth information includes a monitoring period, and the search space group corresponding to the fifth information The monitoring period is the one monitoring period.
  • the terminal device receives third information from the network device, where the third information is used to configure a time domain length set corresponding to a search space group for monitoring the PDCCH.
  • the network device can configure a corresponding set of time domain lengths for each search space group.
  • the search space group configuration information of the fifth search space group includes the third information, the third information includes a time domain length set, and the one time domain length set includes one or more The time domain length, the preset time domain length is one of the one or more time domain lengths included in the third information; the fifth search space group is the number of times configured by the network device for the terminal device. one of the search space groups. In this way, the network device can configure a corresponding set of time domain lengths for each search space group.
  • the third information includes at least one time domain length set; when the third information includes one time domain length set, all M search space groups correspond to the one time domain length set;
  • the M search space groups are configured by the network device for the terminal device, and M is an integer greater than 1;
  • the preset time domain length is a time domain length in the one time domain length set; when When the third information includes M time-domain length sets, the M search space groups are in one-to-one correspondence with the M time-domain length sets, and the preset time-domain length is the search space group for monitoring the PDCCH.
  • a time domain length in the corresponding time domain length set In this way, the network device can configure a corresponding set of time domain lengths for each search space group.
  • the third information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device.
  • the third information is included in bandwidth part configuration information or cell configuration information configured by the network device for the terminal device, and the terminal device further receives fourth information from the network device , the fourth information is also used to configure the monitoring period of the search space group for monitoring the PDCCH.
  • the search space group configuration information of the sixth search space group includes the fourth information, the fourth information includes a time domain length set, and the one time domain length set includes one or more Time domain length, the preset time domain length is one of one or more time domain lengths included in the third information or the fourth information; One of multiple search space groups configured by the terminal device.
  • the third information when the network device is configured with the third information but not configured with the fourth information, the third information includes a time domain length set, and the search space corresponding to the third information The group corresponds to the one time domain length set; the preset time domain length is one time domain length in the one time domain length set.
  • the fourth information when the network device is configured with the third information and also configured with the fourth information, the fourth information includes a time domain length set, and the search corresponding to the fourth information
  • the space group corresponds to the one time domain length set; the preset time domain length is one time domain length in the one time domain length set.
  • the present application further provides a communication apparatus, the communication apparatus may be a terminal device, and the communication apparatus has the function of implementing the terminal device in the first aspect or each possible design example of the first aspect.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a transceiver unit and a processing unit, and these units can perform the corresponding functions of the terminal device in the first aspect or each possible design example of the first aspect.
  • these units can perform the corresponding functions of the terminal device in the first aspect or each possible design example of the first aspect.
  • the method example The detailed description in , will not be repeated here.
  • the structure of the communication device includes a transceiver and a processor, and optionally a memory, where the transceiver is used to send and receive data, and to communicate and interact with other devices in the communication system,
  • the processor is configured to support the communication apparatus to perform corresponding functions of the terminal device in the first aspect or each possible design example of the first aspect.
  • the memory is coupled to the processor and holds program instructions and data necessary for the communication device.
  • the present application further provides a communication apparatus, the communication apparatus may be a network device, and the communication apparatus has the function of implementing the network device in the first aspect or each possible design example of the first aspect.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the structure of the communication device includes a transceiver unit and a processing unit, and these units can perform the corresponding functions of the network device in the first aspect or each possible design example of the first aspect.
  • these units can perform the corresponding functions of the network device in the first aspect or each possible design example of the first aspect.
  • the method example The detailed description in , will not be repeated here.
  • the structure of the communication device includes a transceiver and a processor, and optionally a memory, where the transceiver is used to send and receive data, and to communicate and interact with other devices in the communication system,
  • the processor is configured to support the communication apparatus to perform the corresponding functions of the network device in the first aspect or each possible design example of the first aspect.
  • the memory is coupled to the processor and holds program instructions and data necessary for the communication device.
  • an embodiment of the present application provides a communication system, which may include the above-mentioned terminal device and network device.
  • a computer-readable storage medium provided by an embodiment of the present application, the computer-readable storage medium stores a program instruction, and when the program instruction is executed on a computer, makes the computer execute the first aspect of the embodiment of the present application and its contents.
  • a computer-readable storage medium can be any available medium that can be accessed by a computer.
  • computer readable media may include non-transitory computer readable media, random-access memory (RAM), read-only memory (ROM), electrically erasable Except programmable read only memory (electrically EPROM, EEPROM), CD-ROM or other optical disk storage, magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other media accessed by a computer.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable Except programmable read only memory
  • CD-ROM or other optical disk storage magnetic disk storage medium or other magnetic storage device, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other media accessed by a computer.
  • the embodiments of the present application provide a computer program product including computer program codes or instructions, which, when run on a computer, enable the computer to implement the first aspect or any of the possible designs of the first aspect.
  • the present application further provides a chip, including a processor, which is coupled to a memory and configured to read and execute program instructions stored in the memory, so that the chip implements the above-mentioned first aspect Or the method described in any of the possible designs of the first aspect.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by the present application.
  • Fig. 2 is a kind of schematic diagram of monitoring PDCCH provided by this application.
  • FIG. 3 is a schematic diagram of skipping PDCCH monitoring provided by the present application.
  • FIG. 4 is a schematic diagram of a search space group provided by the present application.
  • FIG. 5 is a schematic diagram of another monitoring PDCCH provided by the present application.
  • FIG. 6 is a flowchart of a method for PDCCH monitoring provided by the present application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by the present application.
  • FIG. 8 is a structural diagram of a communication device provided by the present application.
  • Embodiments of the present application provide a method and apparatus for monitoring PDCCH, so as to specify how a terminal device monitors PDCCH.
  • the methods and devices described in this application are based on the same technical concept. Since the methods and devices have similar principles for solving problems, the implementations of the devices and methods can be referred to each other, and repeated descriptions will not be repeated here.
  • At least one (species) refers to one (species) or multiple (species), and multiple (species) refers to two (species) or more than two (species).
  • FIG. 1 shows an architecture of a communication system involved in an embodiment of the present application.
  • the architecture of the communication system includes a network device and a terminal device, where:
  • the network device is a device with a wireless transceiver function or a chip that can be provided in the network device, and the network device includes but is not limited to: a base station (generation node B, gNB), a radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), access point (AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP) in wireless fidelity (wireless fidelity, Wi-Fi) system Or transmission point, TP), etc., and can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU), etc.
  • RNC radio network controller
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless chain
  • the functions of the road control radio link control, RLC
  • media access control media access control, MAC
  • physical (physical, PHY) layers The functions of the road control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layers.
  • the network device may be a CU node, a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in the access network RAN, and the CU can also be divided into network equipment in the core network CN, which is not limited.
  • the terminal equipment may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device , user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( transportation safety), wireless terminals in smart cities, smart wearable devices (smart glasses, smart watches, smart headphones, etc.), wireless terminals in smart homes, etc.
  • VR virtual reality
  • AR augmented reality
  • Chips or chip modules (or chip systems) that can be installed in the above equipment are collectively referred to as a terminal device.
  • the communication system shown in FIG. 1 can be, but is not limited to, a fourth generation (4th Generation, 4G) system or a fifth generation (5th Generation, 5G) system, such as a new generation wireless access technology (new radio access technology).
  • 4G fourth generation
  • 5G fifth generation
  • NR new radio access technology
  • the methods in the embodiments of the present application are also applicable to various future communication systems, such as a sixth generation (6th Generation, 6G) system or other communication networks.
  • the DCI contains a piece of data scheduling information that indicates the physical Transmission parameters of the physical downlink shared channel (PDSCH) (which contains downlink data) or the physical uplink shared channel (PUSCH) (which contains uplink data), among these transmission parameters, including PDSCH/PUSCH
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • the time-frequency domain resource location Specifically, the above-mentioned DCI is carried in the PDCCH.
  • the network device will indicate the K0 value through the time domain resource allocation (TDRA) field in the DCI, which is used to determine the time slot interval between the PDCCH and PDSCH; for the uplink data, the network device will The K2 value is indicated by the TDRA field in the DCI to determine the slot interval between the PDCCH and the PUSCH.
  • TDRA time domain resource allocation
  • the network device sends downlink data at the time-frequency domain resource location indicated in the DCI, and the terminal device receives it at the corresponding location; or, the terminal device sends the uplink data at the time-frequency domain resource location indicated in the DCI, and the network device receives it at the corresponding location.
  • a terminal device When a terminal device receives its own DCI, it needs to blindly detect (blind detect, BD) the PDCCH sent to itself in the downlink control area, that is, the terminal device monitors many PDCCH candidate positions (PDCCH candidate), and finds out whether there are any Sent to myself.
  • a set of candidate positions that the terminal device needs to blindly detect forms a search space set (SSS), and the search space can also be called a search space set.
  • the terminal device may monitor one (group) or multiple (group) search spaces to find out whether there is a PDCCH sent to itself.
  • the terminal equipment needs to monitor the position of the PDCCH, which may also be referred to as a PDCCH monitoring occasion (PDCCH monitoring occasion).
  • the terminal equipment monitors the PDCCH periodically according to the configuration of the search space.
  • FIG. 2 it is a schematic diagram of monitoring the PDCCH when the period is 1 slot and 4 slots respectively.
  • the period shown in (a) in FIG. 2 is one time slot, it is necessary to monitor the PDCCH in every time slot.
  • the period shown in (b) in Fig. 2 is 4 time slots, the PDCCH is monitored every 4 time slots.
  • the terminal equipment will frequently monitor the PDCCH, but if the terminal equipment has no service for a period of time, that is, when there is no downlink data or uplink data to be transmitted, the terminal equipment cannot receive the data sent to itself even if it monitors the PDCCH. PDCCH. If the terminal equipment still monitors the PDCCH during these times, it will cause power consumption of the terminal equipment.
  • the network device can send an indication message to the terminal device, indicating that the terminal device can skip the PDCCH for a period of time. monitor.
  • the PDCCH monitoring that the terminal equipment skips for a period of time can be equivalently described as the terminal equipment does not monitor the PDCCH for a period of time, and this period of time during which the PDCCH is not monitored can be referred to as skipping duration.
  • skipping duration For example, in the schematic diagram of skipping PDCCH monitoring shown in Figure 3, the terminal device originally needs to monitor the PDCCH in each time slot. When the terminal device is instructed by the network device to not monitor the PDCCH for a period of time, the terminal device can PDCCH is not monitored during the time.
  • the network device may send an indication message to the terminal device, instructing the terminal device to switch between the two groups of preconfigured search spaces. For example, as shown in FIG. 4 , the terminal equipment is configured with 2 groups of search spaces, the period corresponding to the search space group 1 is 1 timeslot, and the period corresponding to the search space group 2 is 4 timeslots.
  • the network device can send an indication message to the terminal device, indicating that the terminal device can switch from monitoring search space group 1 to monitoring search space group 2, thereby reducing the number of PDCCH monitoring and saving the power consumption of the terminal device.
  • the above two solutions can both achieve the purpose of "reducing PDCCH monitoring".
  • the way of skipping PDCCH is more flexible and changeable, and is suitable for scheduling changes on a small time scale (that is, changes with and without scheduling are more frequent); while in the second scheme, search space switching (later The method collectively referred to as search space set group (SSSG) switching) is suitable for larger time scale changes.
  • SSSG search space set group
  • the period of the SSSG may be the monitoring period of the search space included in the SSSG.
  • the skipping time for skipping the PDCCH is 3 slots. As shown in (a) of FIG.
  • this application proposes a method for PDCCH monitoring, which clarifies how to monitor PDCCH, and can ensure that the skipping time of skipping PDCCH and the period of SSSG match, that is, the skipping time of skipping PDCCH is guaranteed to be included in the SSSG.
  • the period of the search space is matched.
  • what can monitor or not monitor the PDCCH may be a terminal device, or a processor in the terminal device, or a chip or a chip system, or a functional module, etc.; How the device monitors the PDCCH may be a network device, or a processor in the network device, or a chip or a chip system, or a functional module, or the like.
  • the PDCCH monitoring method provided by the present application is described in detail by taking the terminal device and the network device as examples, but the present application is not limited.
  • a PDCCH monitoring method provided by the embodiment of the present application is applicable to the communication system shown in FIG. 1 .
  • the specific flow of the method may include:
  • Step 601 The network device determines the first information.
  • the first information may be used to instruct the terminal device not to monitor the PDCCH within a preset time domain length, where the preset time domain length is related to a search space group for monitoring the PDCCH.
  • the first information may be used to indicate a search space group for monitoring the PDCCH.
  • the first information may be used to instruct the terminal device not to monitor the PDCCH within a preset time domain length, and to indicate a search space group for monitoring the PDCCH, where the preset time domain length is related to the search space group for monitoring the PDCCH.
  • the search space group for monitoring PDCCH related to the preset time domain length may be the search space group currently monitoring PDCCH by the terminal device (that is, the search space group monitoring PDCCH when the terminal device receives the first information), or it may be is the search space group for monitoring the PDCCH indicated by the first information.
  • not monitoring the PDCCH may be skipping the monitoring of the PDCCH, stopping the monitoring of the PDCCH, or not performing blind detection of the PDCCH, and so on.
  • the network device may configure N time-domain length sets and M search space groups for the terminal device, wherein each time-domain length set in the N time-domain length sets is associated with M A search space group in the search space group is related, N is an integer greater than 1 or equal to 1, and M is an integer greater than 1.
  • the network device configures two search space groups SSSG0 and SSSG1 for the terminal device, wherein the monitoring period of SSSG0 is 1 timeslot, and the monitoring period of SSSG1 is 5 timeslots.
  • the network device configures two time domain length sets (that is, two sets of skipping durations) for the terminal device, which are ⁇ 2, 4 ⁇ and ⁇ 10, 20 ⁇ (units are timeslots) respectively.
  • the M search space groups may be M non-empty search space groups, that is, any search space group in the M search space groups includes at least one search space.
  • the preset time domain length may be one of the first time domain length sets, and the first time domain length set is one of N time domain length sets.
  • the preset time domain length may be h time slots, or f milliseconds, etc., where h is an integer greater than or equal to 1, and f is an integer greater than or equal to 1.
  • a search space group is associated with a set of time-domain lengths.
  • the preset time domain length may be 2 time slots or 4 time slots, that is, SSSG0 is related to the time domain length set ⁇ 2, 4 ⁇ ;
  • the preset time domain length may be 10 time slots or 20 time slots, that is, SSSG1 is related to the time domain length set ⁇ 10, 20 ⁇ .
  • the network device may configure a time domain length set corresponding to the search space group monitoring the PDCCH for the terminal device. For example, the network device sends third information to the terminal device, where the third information is used to configure a time domain length set corresponding to a search space group for monitoring the PDCCH.
  • the network device may additionally send fourth information to the terminal device. If the network device sends both the third information and the fourth information, the third information and the fourth information are used to jointly configure and monitor the PDCCH.
  • the time domain length set corresponding to each search space group includes one or more time domain lengths. When only one time domain length is included in the time domain length set, it can be understood that the network device configures the terminal device with one time domain length corresponding to the search space group for monitoring the PDCCH.
  • the search space group configuration information of the fifth search space group includes third information, the third information includes a time domain length set, and the one time domain length set includes one or more time domain lengths , the preset time domain length may be one of one or more time domain lengths included in the third information.
  • the fifth search space group is any one of multiple search space groups configured by the network device for the terminal device.
  • the network device may include a corresponding set of time domain lengths in the search space group configuration information of each search space group, that is, the search space group configuration information of each search space group includes one or more time-domain lengths field length.
  • the search space group configuration information of SSSG0 includes a time domain length set ⁇ 2, 4 ⁇ ; the search space group configuration information of SSSG1 includes a time domain length set ⁇ 10, 20 ⁇ .
  • the time domain length set includes only one time domain length
  • the search space group configuration information of SSSG0 includes a time domain length of 2; the search space group configuration information of SSSG1 includes a time domain length of 10.
  • the fifth search space group is only the name of a search space group, and does not refer to the number or index of the search space groups. It may be the first search space group, the second search space group, or the third search space group involved later. space group.
  • the time domain length set included in the third information in the search space group configuration information of each search space group is one of the above N time domain length sets.
  • the third information may include at least one time-domain length set, that is, the above-mentioned N time-domain length sets, specifically:
  • the M search space groups all correspond to the one time domain length set; the preset time domain length is one of the one time domain length set. a time domain length of .
  • the network device is configured with only one time domain length set ⁇ 2, 4 ⁇ , both SSSG0 and SSSG1 correspond to ⁇ 2, 4 ⁇ .
  • the preset time domain length may be 2 time slots or 4 time slots, that is, SSSG0 corresponds to the time domain length set ⁇ 2, 4 ⁇ ;
  • the preset time domain length may also be 2 time slots or 4 time slots, that is, SSSG1 also corresponds to the time domain length set ⁇ 2, 4 ⁇ .
  • the M search space groups are in one-to-one correspondence with the M time-domain length sets, and the preset time-domain length is the search space group for monitoring the PDCCH A time domain length in the corresponding time domain length set.
  • the network device is configured with time domain length sets ⁇ 2, 4 ⁇ and ⁇ 10, 20 ⁇
  • SSSG0 corresponds to ⁇ 2, 4 ⁇
  • SSSG1 corresponds to ⁇ 10, 20 ⁇ .
  • the preset time domain length may be 2 time slots or 4 time slots, that is, SSSG0 corresponds to the time domain length set ⁇ 2, 4 ⁇ ;
  • the preset time domain length may be 10 time slots or 20 time slots, that is, SSSG1 corresponds to the time domain length set ⁇ 10, 20 ⁇ .
  • each time-domain length set in the T time-domain length sets is associated with M
  • One search space group in the search space group corresponds, and the specific corresponding relationship is not limited in this application.
  • the third information may be included in bandwidth part (bandwidth part, BWP) configuration information or cell (cell) configuration information configured by the network device for the terminal device.
  • bandwidth part bandwidth part
  • cell cell
  • the time domain length sets configured by the third information there may be one time domain length set that must be configured, and other time domain length sets that can be optionally configured.
  • the time domain length set that must be configured for example, the time domain length set ⁇ 2, 4 ⁇
  • skippingDurationList which is mandatory when the network device is configured to enable the skipping function.
  • time-domain length sets (such as time-domain length sets ⁇ 10, 20 ⁇ ) that can be optionally configured can be configured through the parameter additionalSkippingDurationList, which is optional when the network device is configured to enable the skip function (optional)Configuration.
  • the BWP configuration information or the cell configuration information includes third information, and the third information may include a time domain length set.
  • the search space group configuration information of the sixth search space group includes fourth information, and the fourth information includes a time domain length set.
  • Each time domain length set includes one or more time domain lengths.
  • the sixth search space group is any one of multiple search space groups configured by the network device for the terminal device.
  • the set of time-domain lengths included in the fourth information corresponds to the sixth search space group, and the preset time-domain lengths may be one or more of the lengths included in the fourth information One of the time domain lengths.
  • the network device configures the third information to include a time domain length set ⁇ 2, 4 ⁇ , and the fourth information is not configured for SSSG0 and SSSG1, then both SSSG0 and SSSG1 correspond to ⁇ 2, 4 ⁇ .
  • the preset time domain length may be 2 time slots or 4 time slots, that is, SSSG0 corresponds to the time domain length set ⁇ 2, 4 ⁇ ;
  • the preset time domain length may also be 2 time slots or 4 time slots, that is, SSSG1 also corresponds to the time domain length set ⁇ 2, 4 ⁇ .
  • the third information configured by the network device includes a time domain length set ⁇ 2, 4 ⁇
  • the fourth information configured in the configuration information of SSSG1 includes a time domain length set ⁇ 10, 20 ⁇ , and the first time domain length set is not configured for SSSG0.
  • SSSG0 corresponds to the time domain length set ⁇ 2, 4 ⁇
  • SSSG1 corresponds to the time domain length set ⁇ 10, 20 ⁇ .
  • the preset time domain length may be 2 time slots or 4 time slots, that is, SSSG0 corresponds to the time domain length set ⁇ 2, 4 ⁇ ;
  • the preset time domain length may be 10 time slots or 20 time slots, that is, SSSG1 corresponds to the time domain length set ⁇ 10, 20 ⁇ .
  • the time domain length set configured by the third information is mandatory (mandatory) configuration
  • the time domain length set configured by the fourth information is optional (optional) configuration.
  • the third information eg, the time-domain length set ⁇ 2, 4 ⁇
  • a dedicated time-domain length set for example, the time-domain length set ⁇ 10, 20 ⁇ .
  • the solution in the above third case can also be understood as the priority of the time domain length set configured by the fourth information is higher than the time domain length set configured by the third information.
  • the solution in the third case can also be understood as: when the network device is configured with the fourth information, the time domain length set configured by the fourth information can replace/override/overwrite the third information configuration collection of time domain lengths.
  • the sixth search space group is only the name of a search space group, and does not refer to the number or index of the search space groups, and it may be the first search space group, the second search space group or the third search space group involved later. space group.
  • a corresponding time domain length set is configured for each search space group, and further, the preset time domain length is specifically determined by the first information as to which of the corresponding time domain length sets.
  • the network device can control whether to enable the function of "different SSSGs correspond to different time domain lengths" by whether to configure M time domain length sets, which makes the network device configuration skip monitoring PDCCH more flexible.
  • the preset time domain length may be an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH.
  • the preset time domain length may be 2 or 4 monitoring periods.
  • the monitoring period of the search space group may be a preset period, and the preset period is independent of the period of the search space (search space set, SSS) included in the search space group.
  • the monitoring period of the search space group may be preset by the following method: the network device sends second information to the terminal device, and the second information is used to configure the search space for monitoring the PDCCH. monitoring period of the group. Further optionally, the network device may additionally send fifth information to the terminal device. If the network device sends both the second information and the fifth information, the second information and the fifth information are used to configure monitoring together. The monitoring period of the search space group of the PDCCH.
  • the search space group configuration information of the fourth search space group includes second information, and the second information includes the monitoring period of the fourth search space group.
  • the fourth search space group is Any one of multiple search space groups configured by the network device for the terminal device.
  • the network device may include a monitoring period of a corresponding search space group in the search space group configuration information of each search space group.
  • the search space group configuration information of SSSG0 includes the monitoring period #1 of the search space group, and the length is 1 timeslot.
  • the fourth search space group is only the name of a search space group, and does not refer to the number or index of the search space groups. It can be the first search space group, the second search space group, or the third search space group involved later. space group.
  • the second information includes at least one monitoring period, specifically:
  • the monitoring periods of the M search space groups are all the monitoring periods of the one search space group.
  • the network device is only configured with one monitoring period, that is, when the network equipment is only configured with the monitoring period of the search space group as monitoring period #1
  • the monitoring periods of SSSG0 and SSSG1 are both the monitoring period #1 of the search space group.
  • the M search space groups are in one-to-one correspondence with the monitoring periods of the M search space groups.
  • the monitoring period of SSSG0 may be the monitoring period #1 of the search space group
  • the monitoring period of SSSG1 may be the monitoring period #1 of the search space group. Monitoring cycle #2.
  • the preset time domain length can be 2 or 4 monitoring periods
  • each monitoring period in the monitoring periods of the T search space groups is associated with one search space group among the M search space groups
  • the specific corresponding relationship is not limited in this application.
  • the second information may be included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device.
  • the monitoring periods of the search space groups configured by the second information may be required to be configured, and the monitoring periods of other search space groups may be optionally configured.
  • the monitoring period of the search space group that must be configured (for example, the monitoring period #1 of the search space group) can be configured through the parameter defaultMonitoringPeriodicity, which is mandatory when the network device is configured to enable the skip function.
  • the monitoring period of other search space groups that can be optionally configured can be configured through the parameter additional monitoring period (additionalMonitoringPeriodicity), which is optional when the network device is configured to enable the skip function ( optional) configuration.
  • the BWP configuration information or the cell configuration information includes second information, and the second information may include a monitoring period of a search space group.
  • the search space group configuration information of the seventh search space group includes fifth information, and the fifth information includes a monitoring period of a search space group.
  • the seventh search space group is any one of multiple search space groups configured by the network device for the terminal device.
  • the monitoring period of the search space group included in the second information corresponds to the seventh search space group
  • the preset time domain length may be the length of the search space group included in the second information. Integer multiple of the monitoring period.
  • the monitoring period of the search space group included in the fifth information corresponds to the seventh search space group
  • the preset time domain length may be the search space included in the fifth information. Integer multiple of the monitoring period of the group.
  • the network device configures the monitoring period #1 of the search space group through the second information, but does not configure the fifth information for SSSG0 and SSSG1, the monitoring period of SSSG0 may be the monitoring period #1 of the search space group, and the monitoring period of SSSG1 may also be It is the monitoring period #1 of the search space group.
  • the preset time domain length may be 2 or 4 monitoring periods, regardless of whether the search space group currently used by the terminal device is SSSG0 or SSSG1,
  • the network device configures the monitoring period #1 of the search space group through the second information, the fifth information is not configured for SSSG0, and the monitoring period #2 of the search space group is configured for SSSG1 through the fifth information. Then, the monitoring period of SSSG0 may be the monitoring period #1 of the search space group, and the monitoring period of SSSG1 may be the monitoring period #2 of the search space group.
  • the preset time domain length may be 2 or 4 monitoring periods.
  • the monitoring period of the search space group configured by the second information is mandatory, and the monitoring period of the search space group configured by the fifth information is optional. of.
  • the second information for example, the monitoring period #1 of the search space groups
  • the fifth information can be used to configure the monitoring period of a dedicated search space group (for example, the monitoring period of the search space group) in the search space group. cycle #2).
  • the solution in the third case can also be understood as the monitoring period priority of the search space group configured by the fifth information is higher than the monitoring period of the search space group configured by the second information.
  • the solution in the third case can also be understood as: when the network device is configured with the fifth information, the monitoring period of the search space group configured by the fifth information can be replaced (replace)/override (override)/rewrite (overwrite) the second The monitoring period of the search space group of the information configuration.
  • the seventh search space group is only the name of a search space group, and does not refer to the number or index of the search space groups. It can be the first search space group, the second search space group, or the third search space group involved later. space group.
  • the network device can control whether to enable the function of “different SSSGs correspond to different time domain lengths” by whether to configure the monitoring period of M search space groups, so that the network device is configured to skip monitoring the PDCCH update. Flexible.
  • the monitoring period of the search space group is a first monitoring period
  • the first monitoring period is related to the period of the search space included in the search space group, wherein the first monitoring period may include the following three situations:
  • the first monitoring period is the largest monitoring period or the smallest monitoring period among the monitoring periods of at least one search space included in the search space group.
  • the first monitoring period is the monitoring period of the search space in which the terminal device currently receives downlink control information (eg, DCI).
  • DCI downlink control information
  • the first monitoring period is the maximum monitoring period or the minimum monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives the downlink control information at the overlapping time domain positions of the multiple search spaces, or the multiple search space monitoring periods The monitoring period of the search space with the largest index value, or the monitoring period of the search space with the smallest index value among multiple search spaces.
  • the starting position of the preset time domain length is the first time domain position, and the first time domain position may have the following three situations:
  • the first time domain position is the time slot in which the terminal device receives the downlink control information.
  • Case b2 The first time domain position is the time slot next to the time slot in which the terminal device receives the downlink control information.
  • Case b3 when the first monitoring period is the largest monitoring period or the smallest monitoring period among the monitoring periods of at least one search space included in the search space group, the first time domain position is the next search space corresponding to the first monitoring period. The position of the monitored PDCCH in the search space of the largest monitoring period or the smallest monitoring period.
  • Step 602 The network device sends the first information to the terminal device.
  • the first information may be carried in the DCI sent by the network device to the terminal device, that is, the first information may be a field in the DCI.
  • the terminal device performs corresponding operations according to different instructions of the first information. Specifically, when the first information is used to instruct the terminal device not to monitor the PDCCH within the preset time domain length, the terminal device may perform the following step 603a; when the first information is used to indicate the search space group for monitoring the PDCCH, the terminal device may The following step 603b is performed; when the first information is used to instruct the terminal equipment not to monitor the PDCCH within the preset time domain length, and to indicate to monitor the search space group of the PDCCH, the terminal equipment may perform the following step 603c.
  • Step 603a The terminal device does not monitor the PDCCH within the preset time domain length according to the first information.
  • Step 603b The terminal device monitors the PDCCH according to the search space group indicated by the first information.
  • Step 603c The terminal device monitors the PDCCH according to the search space group indicated by the first information and does not monitor the PDCCH within the preset time domain length.
  • the first information when the first information is the first value, the first information may be used to instruct the terminal device not to monitor the PDCCH within the preset time domain length; when the first information is the second value, the first information may be used for Indicates the search space group for monitoring the PDCCH; when the first information is a third value, the first information can be used to instruct the terminal device not to monitor the PDCCH within the preset time domain length, and to indicate the search space group for monitoring the PDCCH.
  • the first information may include A bits, and different values of the A bits may correspond to different time domain lengths in which the PDCCH is not monitored, and/or different search space groups in which the PDCCH is monitored; A is an integer greater than or equal to 2 .
  • the A bits included in the first information may be divided into two indication fields for independent indication.
  • the first information may include a first indication field and a second indication field.
  • the first indication field may be the first bit in the A bits (may be referred to as a flag bit), and the first indication field indicates the terminal device through the first bit of the A bits. Skip the PDCCH monitoring, or instruct the terminal equipment to perform search space group switching.
  • the second indication field is A-1 bits other than the first bit among the A bits.
  • the second indication field indicates through A-1 bits that the terminal equipment does not monitor the PDCCH within the first time domain length, that is, the second indication field passes A-1
  • the time domain length of the bits indicating that the PDCCH is not to be monitored is the first time domain length; the specific value of the first time domain length is indicated by the value of A-1 bits included in the second indication field.
  • the second indication field instructs the terminal equipment to monitor the PDCCH according to the first search space group through A-1 bits, that is, the second indication field uses A-1 bits
  • the bit indicates that the search space group in which the terminal device monitors the PDCCH is the first search space group; wherein the first search space group is a specific search space group, for example, the first search space group may be SSSG0 or SSSG1.
  • the allocation of the first indication field and the second indication field in the A bits of the first information may also have other manners, which are not limited in this application.
  • instructing the terminal device to switch the search space group involved in this application may specifically mean instructing the terminal device to switch to another search space group, or instructing the terminal device to keep the current search space group unchanged. That is, when the terminal equipment is instructed to switch the search space group and the indicated search space group is different from the current search space group of the terminal equipment, it means that the terminal equipment is instructed to switch to other search space groups; when the terminal equipment is instructed to switch the search space group When the indicated search space group is the same as the current search space group of the terminal device, it indicates that the terminal device is instructed to keep the current search space group unchanged.
  • the indicated search space group is SSSG1
  • the current search space group of the terminal equipment is SSSG0, indicating that the terminal equipment is instructed to switch to SSSG0.
  • the indicated search space group is SSSG1
  • the current search space group of the terminal equipment is SSSG1
  • the second indication field is used to instruct the terminal device not to monitor the PDCCH within the first time domain length, where the first time domain length is the same as the search space group in which the terminal device currently monitors the PDCCH.
  • the preset time domain length is the first time domain length; when the first indication field is the second value, the second indication field is used to instruct the terminal device to monitor the PDCCH according to the first search space group. That is, when the first indication field is the first value, the first indication field instructs the terminal equipment to skip PDCCH monitoring, and when the first indication field is the second value, the first indication field instructs the terminal equipment to perform search space group switching.
  • the first indication field is the first value
  • the value of the second indication field is different, and the indicated first time domain length is different; when the first indication field is the second value, the value of the second indication field is different , the indicated first search space groups are different.
  • the network device configures SSSG0 (the monitoring period is 1 timeslot) and SSSG1 (the monitoring period is 5 timeslots) for the terminal equipment.
  • the network device configures two time domain length sets for the terminal device, which are ⁇ 2, 4 ⁇ time slots and ⁇ 10, 20 ⁇ time slots respectively.
  • the first time domain length may be one of the above two time domain length sets ⁇ 2, 4 ⁇ and ⁇ 10, 20 ⁇
  • the first search space may be one of SSSG0 and SSSG1.
  • the first information includes 2 bits
  • the first bit is the first indication field
  • the second bit is the second indication field
  • an example of the first information indicating the first time domain length and/or the first search space group may be As shown in Table 1 below:
  • the first indication field is the first value, that is, the first bit is 0, and the first indication field is the second value, that is, the first bit is 1.
  • the second indication field is used to instruct the terminal equipment to monitor the first search space group of the PDCCH.
  • the first search space group that instructs the terminal equipment to monitor the PDCCH is SSSG0
  • the second indication field is 1, the first search space group for instructing the terminal device to monitor the PDCCH is SSSG1.
  • the second indication field is used to instruct the terminal device not to monitor the first time domain length of the PDCCH.
  • the indicated first time domain length is the first length
  • the first time domain length is the first length.
  • a length is related to the search space group currently monitoring PDCCH by the terminal equipment; the first time domain length indicated when the second indication field is 0 is the second length, and the second length is related to the search space group currently monitoring PDCCH by the terminal equipment.
  • the indication situation shown in Table 1 is only an example, and is not intended to limit the present application.
  • the second indication field ie, the second bit
  • the second indication field is 1, it indicates the second length, and when it is 0, it indicates the first length.
  • the first bit it may indicate to skip the PDCCH
  • the first bit it may indicate to perform SSSG handover
  • the second indication field indicates correspondingly, which will not be listed in detail here.
  • the network device configures two time-domain length sets ⁇ 2, 4 ⁇ time slots and ⁇ 10, 20 ⁇ time slots through the third information. Examples of time-domain length sets corresponding to SSSG0 and SSSG1, respectively.
  • the network device may configure only one time-domain length set through the third information, and the one time-domain length set corresponds to all search space groups.
  • the network device is configured with a time domain length set of ⁇ 2, 4 ⁇ time slots, and both SSSG0 and SSSG1 correspond to ⁇ 2, 4 ⁇ .
  • the first information includes 2 bits, the first bit is the first indication field, and when the second bit is the second indication field, the first information indicates the length of the first time domain and/or the length of the first search space group.
  • Table 1a An example can be shown in Table 1a below:
  • Table 1a The principle of Table 1a is the same as that of Table 1, the specific description can refer to each other, and the specific description of Table 1a will not be described here. It should be noted that the example in Table 1a is different from the example in Table 1 in that SSSG0 and SSSG1 in Table 1a correspond to the same time domain length set, while SSSG0 and SSSG1 in Table 1 correspond to different time domain length sets.
  • the network device configures a time domain length set through third information, and the third information is included in the BWP configuration information or the cell configuration information.
  • the network device may also choose to configure a time domain length set by using fourth information, where the fourth information is included in the configuration information of the search space group.
  • the network device configures the time domain length set ⁇ 2, 4 ⁇ time slots through the third information, and both SSSG0 and SSSG1 correspond to ⁇ 2, 4 ⁇ .
  • the first information includes 2 bits, the first bit is the first indication field, and when the second bit is the second indication field, the first information indicates the length of the first time domain and/or the length of the first search space group.
  • Table 1a An example can be shown in Table 1a.
  • the first information includes 2 bits, the first bit is the first indication field, and when the second bit is the second indication field, the first information indicates the length of the first time domain and/or the length of the first search space group.
  • An example can be shown in Table 1.
  • the network device configures SSSG0 (the monitoring period is 1 timeslot) and SSSG1 (the monitoring period is 5 timeslots) for the terminal equipment.
  • the preset time domain length may be an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH
  • the first time domain length may be twice the period of the SSSG currently monitoring the PDCCH (that is, 2 monitoring periods) or 4. times (ie, 4 monitoring cycles).
  • the first search space may be one of SSSG0 and SSSG1. Assuming that the first information includes 2 bits, the first bit is the first indication field, and the second bit is the second indication field, an example of the first information indicating the first time domain length and/or the first search space group may be As shown in Table 2 below:
  • the first indication field is the first value, that is, the first bit is 0, and the first indication field is the second value, that is, the first bit is 1.
  • the second indication field is used to instruct the terminal equipment to monitor the first search space group of the PDCCH.
  • the first search space group that instructs the terminal equipment to monitor the PDCCH is SSSG0
  • the second indication field is 1, the first search space group for instructing the terminal device to monitor the PDCCH is SSSG1.
  • the second indication field is used to instruct the terminal device not to monitor the first time domain length of the PDCCH.
  • the indicated first time domain length is 2 monitoring periods.
  • the specific time domain lengths (that is, several time slots, etc.) corresponding to the two monitoring periods are related to the search space group currently monitoring the PDCCH by the terminal equipment; when the second indication field is 0, the indicated first time domain length is 4 monitoring periods , and the specific time domain length corresponding to the two monitoring periods is related to the search space group currently monitoring the PDCCH by the terminal device.
  • the indication situation shown in Table 2 is only an example, and is not intended to limit the present application.
  • the second indication field ie, the second bit
  • the second indication field is 1, it indicates 4 monitoring periods, and when it is 0, it indicates 2 monitoring periods.
  • the first bit it may indicate to skip the PDCCH
  • the first bit it may indicate to perform SSSG handover
  • the second indication field indicates correspondingly, which will not be listed in detail here.
  • the network device configures two monitoring periods (one time slot and five time slots, respectively) through the second information, and the two monitoring periods are respectively the same as SSSG0 and SSSG0 and Example corresponding to SSSG1.
  • the network device may configure only one monitoring period through the second information, and the one monitoring period corresponds to all search space groups.
  • the network device is configured with a monitoring period with a length of one time slot, and both SSSG0 and SSSG1 correspond to a monitoring period with a length of one time slot.
  • the first information includes 2 bits, the first bit is the first indication field, and when the second bit is the second indication field, the first information indicates the length of the first time domain and/or the length of the first search space group.
  • Table 2a An example can be shown in Table 2a below:
  • Table 2a The principle of Table 2a is the same as that of Table 2, the specific description can refer to each other, and the specific description of Table 2a will not be given here. It should be noted that the example in Table 2a is different from the example in Table 2 in that SSSG0 and SSSG1 in Table 2a correspond to the same monitoring period, while SSSG0 and SSSG1 in Table 2 correspond to different monitoring periods.
  • the network device configures a monitoring period through second information, and the second information is included in the BWP configuration information or the cell configuration information.
  • the network device may also choose to configure a monitoring period through fifth information, where the fifth information is included in the configuration information of the search space group.
  • the network device configures the length of the monitoring period to be one time slot through the second information.
  • the first information includes 2 bits, the first bit is the first indication field, and when the second bit is the second indication field, the first information indicates the length of the first time domain and/or the length of the first search space group.
  • Table 2a An example can be shown in Table 2a.
  • the fifth information configured in the configuration information of SSSG1 includes a monitoring period (with a length of 5 time slots), and the fifth information is not configured for SSSG0, the monitoring period included in the second information Corresponding to SSSG0, the monitoring period included in the fifth information corresponds to SSSG1.
  • the first information includes 2 bits, the first bit is the first indication field, and when the second bit is the second indication field, the first information indicates the length of the first time domain and/or the length of the first search space group.
  • Table 2 An example can be shown in Table 2.
  • the A bits included in the first information may jointly instruct the terminal device not to monitor the PDCCH within a preset time domain length, and/or indicate a search space group for monitoring the PDCCH. That is, joint encoding is performed for skipping PDCCH and SSSG switching, indicating 2 A bit states (states) through A bits, and each bit state corresponds to the time domain length of not monitoring PDCCH, and/or monitoring Search space group for PDCCH.
  • the network device configures SSSG0 (the monitoring period is 1 timeslot) and SSSG1 (the monitoring period is 5 timeslots) for the terminal equipment.
  • the network device configures two time domain length sets for the terminal device, which are ⁇ 2, 4 ⁇ time slots and ⁇ 10, 20 ⁇ time slots respectively.
  • the time domain length set ⁇ 2, 4 ⁇ is related to SSSG0
  • the time domain length set ⁇ 10, 20 ⁇ is related to SSSG1.
  • the first information includes 2 bits, and the 2 bits have 4 bit states in total
  • the first information indicates through the 4 bit states that the time domain length of the PDCCH is not to be monitored
  • an example of the search space group for monitoring the PDCCH can be as follows 3 shows:
  • the search space group instructing the terminal device to monitor the PDCCH is SSSG0 (that is, instructing the terminal device to switch to SSSG0, where , if the current search space group of the terminal equipment is SSSG0, it means that the terminal equipment keeps the search space group SSSG0 unchanged; if the current search space group of the terminal equipment is not SSSG0, it means that the terminal equipment switches from other search space groups to SSSG0); 2
  • the terminal device is instructed to monitor the search space group of the PDCCH as SSSG1 (that is, the terminal device is instructed to switch to SSSG1, wherein if the current search space group of the terminal device is SSSG1, it means that the terminal device keeps the search space The group SSSG1 remains unchanged.
  • the current search space group of the terminal equipment is not SSSG1, it means that the terminal equipment switches from other search space groups to SSSG1); when the bit status of 2 bits is 11, it indicates that the terminal equipment does not monitor the preset time of PDCCH
  • the domain length is the first length, and the first length is related to the search space group currently monitoring the PDCCH by the terminal device; when the bit status of 2 bits is 10, the preset time domain length instructing the terminal device not to monitor the PDCCH is the second length, and the first length is the second length.
  • the second length is related to the search space group in which the terminal device currently monitors the PDCCH.
  • the indication situation shown in Table 3 is only an example, and is not intended to limit the present application.
  • the search space group instructing the terminal equipment to monitor PDCCH is SSSG1; when the bit status of 2 bits is 01, the search space group instructing the terminal equipment to monitor PDCCH is SSSG0;
  • the bit status is 10
  • the preset time domain length instructing the terminal device not to monitor the PDCCH is the first length
  • the bit state of 2 bits is 11
  • the preset time domain length instructing the terminal device not to monitor the PDCCH is the second length.
  • the network device configures two time-domain length sets ⁇ 2, 4 ⁇ time slots and ⁇ 10, 20 ⁇ time slots through the third information. Examples of time-domain length sets corresponding to SSSG0 and SSSG1, respectively.
  • the network device may configure only one time-domain length set through the third information, and the one time-domain length set corresponds to all search space groups.
  • the network device is configured with a time domain length set of ⁇ 2, 4 ⁇ time slots, and both SSSG0 and SSSG1 correspond to ⁇ 2, 4 ⁇ .
  • the first information includes 2 bits, the 2 bits have 4 bit states in total, and the first information indicates through the 4 bit states that the time domain length of the PDCCH is not to be monitored, and/or, an example of a search space group for monitoring the PDCCH It can be shown in Table 3a below:
  • Table 3a The principle of Table 3a is the same as that of Table 3, the specific description can refer to each other, and the specific description of Table 3a will not be given here. It should be noted that the example in Table 3a is different from the example in Table 3 in that SSSG0 and SSSG1 in Table 3a correspond to the same time domain length set, while SSSG0 and SSSG1 in Table 3 correspond to different time domain length sets.
  • the network device configures a time domain length set through third information, where the third information is included in the BWP configuration information or the cell configuration information.
  • the network device may also choose to configure a time domain length set by using fourth information, where the fourth information is included in the configuration information of the search space group.
  • fourth information is included in the configuration information of the search space group.
  • one time domain length set included in the third information corresponds to all search space groups.
  • the network device configures the time domain length set ⁇ 2, 4 ⁇ time slots through the third information, and both SSSG0 and SSSG1 correspond to ⁇ 2, 4 ⁇ .
  • the first information includes 2 bits, and the 2 bits have 4 bit states.
  • the first information indicates that the time domain length of the PDCCH is not to be monitored through the 4 bit states, and/or the example of the search space group for monitoring the PDCCH may be as shown in Table 3a.
  • the network device is configured with the third information, and the fourth information is configured in the configuration information of SSSG1 to include a time domain length set of ⁇ 10, 20 ⁇ time slots, and the fourth information is not configured for SSSG0
  • the time included in the third information corresponds to SSSG0
  • the time domain length set included in the fourth information corresponds to SSSG1.
  • the first information includes 2 bits, and the 2 bits have 4 bit states.
  • the first information indicates that the time domain length of the PDCCH is not to be monitored through the 4 bit states, and/or the example of the search space group for monitoring the PDCCH may be as shown in Table 3.
  • the network device configures SSSG0 (the monitoring period is 1 timeslot) and SSSG1 (the monitoring period is 5 timeslots) for the terminal equipment.
  • the preset time domain length is an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH, for example, 2 times (that is, 2 monitoring periods) or 4 times (that is, 4 monitoring periods) of the period of the SSSG currently monitoring the PDCCH ).
  • the first information includes 2 bits, and the 2 bits have 4 bit states in total
  • the first information indicates through the 4 bit states that the time domain length of the PDCCH is not to be monitored
  • an example of the search space group for monitoring the PDCCH can be as follows 4 shows:
  • the search space group instructing the terminal device to monitor the PDCCH is SSSG0 (that is, instructing the terminal device to switch to SSSG0, where , if the current search space group of the terminal equipment is SSSG0, it means that the terminal equipment keeps the search space group SSSG0 unchanged; if the current search space group of the terminal equipment is not SSSG0, it means that the terminal equipment switches from other search space groups to SSSG0); 2
  • the terminal device is instructed to monitor the search space group of the PDCCH as SSSG1 (that is, the terminal device is instructed to switch to SSSG1, wherein if the current search space group of the terminal device is SSSG1, it means that the terminal device keeps the search space The group SSSG1 remains unchanged.
  • the current search space group of the terminal equipment is not SSSG1, it means that the terminal equipment switches from other search space groups to SSSG1); when the bit status of 2 bits is 11, it indicates that the terminal equipment does not monitor the preset time of PDCCH
  • the domain length is 2 monitoring cycles, and the specific time domain lengths (that is, several time slots, etc.) corresponding to the 2 monitoring cycles are related to the search space group currently monitoring the PDCCH by the terminal device; when the bit status of the 2 bits is 10, it indicates The preset time domain length in which the terminal equipment does not monitor the PDCCH is 4 monitoring periods, and the specific time domain length (ie, several time slots, etc.) corresponding to the 4 monitoring periods is related to the search space group in which the terminal equipment currently monitors the PDCCH.
  • the indications shown in Table 4 are only examples, and are not intended to limit the present application.
  • the search space group instructing the terminal equipment to monitor PDCCH is SSSG0; when the bit status of 2 bits is 01, the search space group instructing the terminal equipment to monitor PDCCH is SSSG1;
  • the bit status is 10
  • the preset time domain length instructing the terminal equipment not to monitor the PDCCH is 4 monitoring periods; when the bit status of 2 bits is 11, the preset time domain length instructing the terminal equipment not to monitor the PDCCH is 2 monitoring periods. cycle.
  • the network device configures two monitoring periods (one time slot and five time slots, respectively) through the second information, and the two monitoring periods are respectively the same as SSSG0 and SSSG0 and Example corresponding to SSSG1.
  • the network device may configure only one monitoring period through the second information, and the one monitoring period corresponds to all search space groups.
  • the network device is configured with a monitoring period of one time slot, and both SSSG0 and SSSG1 correspond to a monitoring period with a length of one time slot.
  • the first information includes 2 bits, and the 2 bits have 4 bit states.
  • the first information indicates that the time domain length of the PDCCH is not to be monitored through the 4 bit states, and/or the example of the search space group for monitoring the PDCCH may be As shown in Table 4a below:
  • Table 4a The principle of Table 4a is the same as that of Table 4, the specific description can refer to each other, and the specific description of Table 4a will not be given here. It should be noted that the example in Table 4a is different from the example in Table 4 in that SSSG0 and SSSG1 in Table 4a correspond to the same monitoring period, while SSSG0 and SSSG1 in Table 4 correspond to different monitoring periods.
  • the network device configures a monitoring period through second information, and the second information is included in the BWP configuration information or the cell configuration information.
  • the network device may also choose to configure a monitoring period through fifth information, where the fifth information is included in the configuration information of the search space group.
  • one monitoring period included in the second information corresponds to all search space groups.
  • the network device configures the length of the monitoring period to be one time slot through the second information. At this time, it is assumed that the first information includes 2 bits, and the 2 bits have 4 bit states.
  • the first information indicates that the time domain length of the PDCCH is not to be monitored through the 4 bit states, and/or the example of the search space group for monitoring the PDCCH may be As shown in Table 4a.
  • the network device is configured with the second information, and the fifth information configured in the configuration information of SSSG1 includes a monitoring period (with a length of 5 time slots), and the fifth information is not configured for SSSG0, the monitoring period included in the second information Corresponding to SSSG0, the monitoring period included in the fifth information corresponds to SSSG1.
  • the first information includes 2 bits, and the 2 bits have 4 bit states.
  • the first information indicates that the time domain length of the PDCCH is not to be monitored through the 4 bit states, and/or the example of the search space group for monitoring the PDCCH may be As shown in Table 4.
  • each bit state of the A bits of the first information indicates that the time domain length of the PDCCH is not monitored, or the search space group of the PDCCH is monitored.
  • the A bits of the first information jointly indicate, there may be at least one bit state in the 2 A bit states of the A bits to simultaneously indicate not to monitor the time domain length of the PDCCH and the search space group to monitor the PDCCH.
  • the network device configures SSSG0 (the monitoring period is 1 timeslot) and SSSG1 (the monitoring period is 5 timeslots) for the terminal equipment.
  • the network device configures four time domain lengths for the terminal device, which are D1 to D4 respectively.
  • the first information indicates that the time domain length of the PDCCH is not to be monitored through the 4 bit states, and/or an example of the search space group for monitoring the PDCCH may be shown in Table 5 below :
  • each bit state indicates both SSSG handover and PDCCH skipping.
  • the bit states in the first information only part of the bit states may correspond to SSSG switching and PDCCH skipping, and other bit states may only correspond to one of SSSG switching and PDCCH skipping, as shown in Table 6, for example.
  • each bit state in Table 6 is only examples, and there may be other situations. For example, when the bit state is 00, it corresponds to SSSG0 + skip D1; when the bit state is 01, it corresponds to skip D2, etc. . Of course, there may also be many other situations, which will not be listed one by one here.
  • the value of the A bits of the first information may also correspond to a search space group and a time domain length, but the corresponding time domain Length is 0.
  • the value of the A bits may correspond to the second search space group and the second time domain length, and the second time domain length is 0. That is to say, by configuring the value of the preset time domain length as 0, only the search space group for monitoring the PDCCH can be indicated, that is, only SSSG handover can be performed, and PDCCH skipping is not performed.
  • the bit status when the value of the first information (that is, the bit status) is 01, it indicates that the first information only indicates to monitor the PDCCH according to SSSG0, and does not skip the PDCCH monitoring; When the bit status) is 11, it indicates that the first information only indicates to monitor the PDCCH according to SSSG1, and does not skip the PDCCH monitoring.
  • the monitoring period of the search space group when the monitoring period of the search space group is small, when the terminal device monitors the PDCCH according to the search space group, there are relatively more opportunities for monitoring the PDCCH, and the power consumption of the terminal device is wasted greatly.
  • the network device does not schedule the terminal device, the way of skipping the PDCCH can reduce the monitoring of the PDCCH, thereby achieving the effect of energy saving.
  • the monitoring period of the search space group itself is relatively large, when the terminal device monitors the PDCCH according to the search space group, the time to monitor the PDCCH is relatively small, and the power consumption of the terminal device itself is relatively small.
  • the monitoring period is very large, for example, when the PDCCH is monitored every 10 time slots or every 20 time slots, even if the method of skipping the PDCCH is not combined, a relatively good energy saving effect can still be achieved. It can be seen from this that a search space group with a smaller monitoring period is suitable for use in combination with PDCCH skipping, while a search space group with a larger monitoring period may not be suitable for use in combination with PDCCH skipping.
  • setting the second time domain length corresponding to the first information to 0 means that the second search space group is not suitable for use in combination with skipping PDCCH, that is, the second search space group
  • the monitoring period is longer.
  • the larger monitoring period of the second search space group may be represented as: the monitoring period of the second search space group is greater than the monitoring period of the third search space group, and the third search space group is a plurality of searches configured by the network device for the terminal device One of the space groups. That is to say, the second search space group with a larger monitoring period is not suitable for use in combination with PDCCH skipping, and the third search space group with a smaller monitoring period is suitable for use in combination with PDCCH skipping.
  • SSSG0 is the third search space group
  • SSSG1 is the second search space group.
  • a possible way is to skip PDCCH only in combination with SSSG0 (that is, the third search space group is SSSG0 at this time), and cannot be combined with SSSG1 (that is, the second search space group is SSSG1 at this time).
  • the terminal equipment when the first information indicates to monitor SSSG1 (that is, the second search space group is SSSG1 at this time), the terminal equipment will not perform skipping PDCCH, only when the first information indicates to monitor SSSG0 (that is, this When the third search space group is SSSG0), the terminal device will skip the PDCCH only.
  • the first information is 2 bits
  • the condition of the 4-bit state indication can be shown in Table 8:
  • the first information when the bit status of the first information is 00, or 01, or 10, the first information all instructs the terminal device to monitor SSSG0 (that is, the third search space group is SSSG0 at this time), and to perform hopping skipping the PDCCH, that is, the third search space group with a smaller monitoring period is used in combination with skipping the PDCCH.
  • the bit state of the first information when the bit state of the first information is 11, the first information only instructs the terminal device to monitor SSSG1 (that is, the second search space group is SSSG1 at this time), and does not skip PDCCH, that is, the first one with a longer monitoring period
  • Two search space groups are not used in conjunction with skipping PDCCH.
  • the bit state of the first information when the bit state of the first information is 11, by configuring D4 corresponding to the bit state 11 (that is, the second time domain length) to 0, it is realized that the bit state of 11 only indicates the second search space group (that is, SSSG1) .
  • Tables 1 to 8 only show the indication that the first information is 2 bits.
  • the first information can also be 3 bits or more than 3 bits.
  • the indication principle is the same as The indication principle of 2 bits is similar and will not be described in detail here.
  • the monitoring period of the second search space group may be a preset period, and the preset period is the same as the period of the SSS included in the second search space group (or the third search space group) It doesn't matter.
  • the monitoring period of the second search space group is the second monitoring period (or the third monitoring period), and the second monitoring period (or the third monitoring period) is the same as the second monitoring period (or the third monitoring period)
  • the periods of the SSSs contained in the search space group (or the third search space group) are correlated.
  • the second monitoring period (or the third monitoring period) may include the following three situations:
  • the second monitoring period (or the third monitoring period) is the largest monitoring period or the smallest monitoring period among the monitoring periods of at least one search space included in the second search space group (or the third search space group).
  • the second monitoring period (or the third monitoring period) is the monitoring period of the search space in which the terminal device currently receives downlink control information (eg, DCI).
  • downlink control information eg, DCI
  • the second monitoring period (or the third monitoring period) is the largest monitoring period or the smallest monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives downlink control information at the overlapping time domain positions of the multiple search spaces.
  • the first search space group, the second search space group, and the third search space group are all general references, and they all indicate a search space group, which is only used for The purpose of distinguishing the description does not have a special meaning, and of course there may be other names, which are not limited in this application.
  • the preset time domain length may be related to a search space (SSS) in which the PDCCH is monitored.
  • the network device may configure an association relationship between the preset time domain length and the SSS, and the terminal device determines the preset time domain length according to the SSS where the DCI received the instruction is located.
  • the specific implementation process of monitoring the PDCCH is similar to the implementation process of monitoring the PDCCH in the embodiment shown in FIG. 6 , which can be referred to each other and will not be described in detail here.
  • the terminal device when the terminal device receives the downlink control information at the overlapping time domain positions of the multiple search spaces, the terminal device can monitor the search space according to the monitoring period of the search space with the largest index value among the multiple search spaces, or the index value of the multiple search spaces.
  • the minimum search space monitoring period determines the preset time domain length.
  • the communication apparatus 700 may include a transceiver unit 701 and a processing unit 702 .
  • the transceiver unit 701 is used for the communication device 700 to receive information (message or data) or send information (message or data), and the processing unit 702 is used to control and manage the actions of the communication device 700 .
  • the processing unit 702 may also control the steps performed by the transceiving unit 701 .
  • the communication apparatus 700 may specifically be the terminal device in the foregoing embodiment, a processor in the terminal device, or a chip, or a chip system, or a functional module, etc.; or, the communication apparatus 700 may specifically be It is the network device in the foregoing embodiment, the processor of the network device, or a chip, or a chip system, or a functional module, or the like.
  • the communication apparatus 700 when configured to implement the functions of the terminal device in the embodiment described in FIG. 6 , it may specifically include:
  • the transceiver unit 701 is configured to receive first information from a network device, where the first information can be used to instruct the terminal device not to monitor the PDCCH within a preset time domain length; wherein the preset time domain length is related to monitoring.
  • the search space groups of the PDCCH are correlated; the processing unit 702 is configured to not monitor the PDCCH within the preset time domain length according to the first information.
  • the first information may also be used to indicate a search space group for monitoring the PDCCH.
  • the first information may include a first indication field and a second indication field; wherein, when the first indication field is a first value, the preset time domain length is the first time domain length, so The second indication field is used to instruct the terminal device not to monitor the PDCCH within the first time domain length; the first time domain length is related to the search space group in which the terminal device currently monitors the PDCCH; the first time domain length When the indication field is the second value, the second indication field is used to instruct the terminal device to monitor the PDCCH according to the first search space group.
  • the first information may include A bits, and different values of the A bits correspond to different time domain lengths of the PDCCH not to be monitored, and/or to monitor different search space groups of the PDCCH; A is greater than or An integer equal to 2.
  • the values of the A bits correspond to the second search space group and the second time domain length, and the first The second time domain length is 0.
  • the monitoring period of the second search space group is greater than the monitoring period of the third search space group
  • the third search space group is one of multiple search space groups configured by the network device for the terminal device. One.
  • the preset time domain length may be one of a first time domain length set, the first time domain length set is one of N time domain length sets, and N is an integer greater than 1 or equal to or, the preset time domain length may be an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH.
  • each time-domain length set in the N time-domain length sets is related to one search space group in the M search space groups, and the M search space groups are the network equipment for the terminal equipment.
  • M is an integer greater than 1.
  • the monitoring period of the search space group is a preset period; or, the monitoring period of the search space group is a first monitoring period, and the first monitoring period may be at least one of the search space groups included.
  • the maximum monitoring period or the minimum monitoring period among the monitoring periods of the search space; or, the first monitoring period may be the monitoring period of the search space in which the terminal device currently receives downlink control information; or, the first monitoring period
  • the period may be the maximum monitoring period or the minimum monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives the downlink control information at the overlapping time domain positions of the multiple search spaces, or the multiple search spaces.
  • the starting position of the preset time domain length may be a first time domain position; wherein, the first time domain position may be when the terminal device receives the downlink control information time slot; or, the first time domain position may be the next time slot of the time slot in which the terminal device receives the downlink control information; or, when the first monitoring period is the search space
  • the first time domain position may be the next largest monitoring period or the smallest monitoring period of the search space corresponding to the first monitoring period.
  • the monitoring period of the search space group is a preset period, including: the transceiver unit 701 is further configured to receive second information from the network device, and the second information uses It is used to configure the monitoring period of the search space group that monitors the PDCCH.
  • the search space group configuration information of the fourth search space group includes the second information, the second information includes the monitoring period of the fourth search space group, and the fourth search space group is all
  • the network device is one of a plurality of search space groups configured for the terminal device.
  • the second information includes at least one monitoring period; when the second information includes one monitoring period, the monitoring periods of the M search space groups are all the one monitoring period; the M search space groups The space group is configured by the network device for the terminal device, and M is an integer greater than 1; when the second information includes M monitoring periods, the M search space groups are equal to the M monitoring periods. A correspondence.
  • the second information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device.
  • the second information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device, and the transceiver unit 701 is further configured to receive fifth information of the network device , the fifth information is also used to configure the monitoring period of the search space group for monitoring the PDCCH, and the fifth information is included in the search space group configuration information of the seventh search space group.
  • the network device configures the second information and does not configure the fifth information
  • the monitoring period of the search space group included in the second information corresponds to the seventh search space group.
  • the monitoring period of the search space group included in the fifth information corresponds to the seventh search space group.
  • the transceiver unit 701 is further configured to receive third information from the network device, where the third information is used to configure a time domain length set corresponding to a search space group for monitoring the PDCCH.
  • the search space group configuration information of the fifth search space group includes the third information, the third information includes a time domain length set, and the one time domain length set includes one or more time domain lengths length, the preset time domain length is one of one or more time domain lengths included in the third information; the fifth search space group is a plurality of search space groups configured by the network device for the terminal device One of the space groups.
  • the third information includes at least one time domain length set; when the third information includes one time domain length set, all M search space groups correspond to the one time domain length set;
  • the M search space groups are configured by the network device for the terminal device, and M is an integer greater than 1;
  • the preset time domain length is a time domain length in the one time domain length set; when all When the third information includes M time domain length sets, the M search space groups are in one-to-one correspondence with the M time domain length sets, and the preset time domain length is the search space group corresponding to the monitoring PDCCH.
  • the third information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device.
  • the third information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device, and the transceiver unit 701 is further configured to receive fourth information of the network device , the fourth information is also used to configure the monitoring period of the search space group for monitoring the PDCCH, and the fourth information is included in the search space group configuration information of the sixth search space group.
  • the network device configures the third information and does not configure the fourth information
  • the monitoring period of the search space group included in the third information corresponds to the sixth search space group.
  • the network device is configured with the third information and also configured with the fourth information
  • the monitoring period of the search space group included in the fourth information corresponds to the sixth search space group.
  • the communication apparatus 700 when configured to implement the function of the network device in the embodiment described in FIG. 6 , it may specifically include:
  • the processing unit 702 is configured to determine first information, where the first information is used to instruct the terminal device not to monitor the PDCCH within a preset time domain length; wherein the preset time domain length is related to a search space group for monitoring the PDCCH;
  • the transceiver unit 701 is configured to send the first information to the terminal device.
  • the first information may also be used to indicate a search space group for monitoring the PDCCH.
  • the first information may include a first indication field and a second indication field; wherein, when the first indication field is a first value, the preset time domain length is the first time domain length, The second indication field can be used to instruct the terminal device not to monitor the PDCCH within the first time domain length; the first time domain length is related to the search space group in which the terminal device currently monitors the PDCCH; the When the first indication field is a second value, the second indication field may be used to instruct the terminal device to monitor the PDCCH according to the first search space group.
  • the first information may include A bits, and different values of the A bits correspond to different time domain lengths of the PDCCH not to be monitored, and/or different search space groups of the PDCCH to be monitored; A is greater than or an integer equal to 2.
  • the value of the A bits may correspond to the second search space group and the second time domain length, and the first The second time domain length is 0.
  • the monitoring period of the second search space group is greater than the monitoring period of the third search space group
  • the third search space group is one of multiple search space groups configured by the network device for the terminal device. One.
  • the preset time domain length is one of a first time domain length set, the first time domain length set is one of multiple time domain length sets, and N is an integer greater than or equal to 1;
  • the preset time domain length is an integer multiple of the monitoring period of the search space group in which the terminal device currently monitors the PDCCH.
  • each time-domain length set in the N time-domain length sets is related to one search space group in the M search space groups, and the M search space groups are the network equipment for the terminal equipment.
  • M is an integer greater than 1.
  • the monitoring period of the search space group is a preset period; or, the monitoring period of the search space group is a first monitoring period, and the first monitoring period may be the search period the largest monitoring period or the smallest monitoring period among the monitoring periods of at least one search space included in the space group; or, the first monitoring period may be the monitoring period of the search space in which the terminal device currently receives downlink control information; or , the first monitoring period may be the maximum monitoring period or the minimum monitoring period among the monitoring periods of the multiple search spaces when the terminal device receives the downlink control information at the overlapping time domain positions of the multiple search spaces period, or the monitoring period of the search space with the largest index value among the multiple search spaces, or the monitoring period of the search space with the smallest index value among the multiple search spaces.
  • the starting position of the preset time domain length may be the first time domain position; the first time domain position may be the time slot where the terminal device receives the downlink control information; or, the The first time domain position may be the next time slot of the time slot in which the terminal device receives the downlink control information; or, when the first monitoring period is the time slot of at least one search space included in the search space group.
  • the first time domain position may be the monitoring of the search space of the next largest monitoring period or the smallest monitoring period in the search space corresponding to the first monitoring period The location of the PDCCH.
  • the monitoring period of the search space group is a preset period, which may include: the transceiver unit 701 is further configured to send second information to the terminal device, and the second information uses It is used to configure the monitoring period of the search space group that monitors the PDCCH.
  • the search space group configuration information of the fourth search space group includes the second information, the second information includes the monitoring period of the fourth search space group, and the fourth search space group is all
  • the network device is one of a plurality of search space groups configured for the terminal device.
  • the second information includes at least one monitoring period; when the second information includes one monitoring period, the monitoring periods of the M search space groups are all the one monitoring period; the M search space groups The space group is configured by the network device for the terminal device, and M is an integer greater than 1; when the second information includes M monitoring periods, the M search space groups are equal to the M monitoring periods. A correspondence.
  • the second information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device.
  • the transceiver unit 701 is further configured to send third information to the terminal device, where the third information is used to configure a time domain length set corresponding to a search space group for monitoring the PDCCH.
  • the search space group configuration information of the fifth search space group includes the third information, the third information includes a time domain length set, and the one time domain length set includes one or more time domain lengths , the fifth search space group is one of multiple search space groups configured by the network device for the terminal device; the preset time domain length is one or more time domains included in the third information one of the lengths.
  • the third information includes at least one time domain length set; when the third information includes one time domain length set, all M search space groups correspond to the one time domain length set; the M search space groups are configured by the network device for the terminal device, and M is an integer greater than 1; the preset time domain length is a time domain length in the one time domain length set; when the When the third information includes M time-domain length sets, the M search space groups are in one-to-one correspondence with the M time-domain length sets, and the preset time-domain length is the search space group corresponding to the monitoring PDCCH.
  • the third information is included in the bandwidth part configuration information or the cell configuration information configured by the network device for the terminal device.
  • each functional unit in the embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .
  • the communication apparatus 800 may include a transceiver 801 and a processor 802 .
  • the communication apparatus 800 may further include a memory 803 .
  • the memory 803 may be disposed inside the communication device 800 or outside the communication device 800 .
  • the processor 802 may control the transceiver 801 to receive and transmit information or data.
  • the processor 802 may be a central processing unit (CPU), a network processor (NP), or a combination of CPU and NP.
  • the processor 802 may further include a hardware chip.
  • the above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof.
  • the above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general-purpose array logic (generic array logic, GAL) or any combination thereof.
  • the transceiver 801, the processor 802 and the memory 803 are connected to each other.
  • the transceiver 801, the processor 802 and the memory 803 are connected to each other through a bus 804;
  • the bus 804 may be a Peripheral Component Interconnect (PCI) bus or an extended industry standard Structure (Extended Industry Standard Architecture, EISA) bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.
  • the memory 803 is used to store programs and the like.
  • the program may include program code, the program code including computer operation instructions.
  • the memory 803 may include RAM, and may also include non-volatile memory, such as one or more disk memories.
  • the processor 802 executes the application program stored in the memory 803 to realize the above-mentioned functions, thereby realizing the functions of the communication device 800 .
  • the communication apparatus 800 may be the terminal device in the foregoing embodiment; it may also be the network device in the foregoing embodiment.
  • the transceiver 801 may implement the transceiving operation performed by the terminal device in the embodiment shown in FIG. 6 ; processing The controller 802 may implement other operations performed by the terminal device in the embodiment shown in FIG. 6 except for the transceiving operation.
  • the transceiver 801 may implement the transceiving operation performed by the terminal device in the embodiment shown in FIG. 6 ; processing The controller 802 may implement other operations performed by the terminal device in the embodiment shown in FIG. 6 except for the transceiving operation.
  • the transceiver 801 may implement the transceiving operation performed by the network device in the embodiment shown in FIG. 6 ;
  • the processor 802 may implement other operations other than the transceiving operation performed by the network device in the embodiment shown in FIG. 6 .
  • the embodiments of the present application provide a communication system, and the communication system may include the terminal device, the network device, and the like involved in the above embodiments.
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the PDCCH monitoring method provided by the above method embodiments .
  • Embodiments of the present application further provide a computer program product, where the computer program product is used to store a computer program, and when the computer program is executed by a computer, the computer can implement the PDCCH monitoring method provided by the above method embodiments.
  • Embodiments of the present application further provide a chip, including a processor, which is coupled to a memory and configured to invoke a program in the memory so that the chip implements the PDCCH monitoring method provided by the above method embodiments.
  • An embodiment of the present application further provides a chip, where the chip is coupled to a memory, and the chip is used to implement the PDCCH monitoring method provided by the above method embodiments.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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

Abstract

L'invention concerne un procédé et un dispositif de surveillance d'un canal de commande de liaison descendante physique (PDCCH), destinés à être utilisés dans la clarification de la manière dont un équipement terminal doit surveiller le PDCCH. L'équipement terminal reçoit des premières informations en provenance d'un dispositif de réseau, les premières informations étant utilisées pour indiquer à l'équipement terminal de ne pas surveiller le PDCCH dans une longueur de domaine temporel prédéfinie, la longueur de domaine temporel prédéfinie étant associée à un ensemble d'espaces de recherche pour surveiller le PDCCH ; et l'équipement terminal ne surveille pas le PDCCH dans la longueur de domaine temporel prédéfinie sur la base des premières informations. Ainsi lorsque la prise en charge pour le saut de PDCCH et la commutation d'ensemble d'espaces de recherche sont indiquées en même temps, une correspondance entre la longueur dans le domaine temporel du saut de PDCCH et le cycle de surveillance de l'ensemble d'espaces de recherche est assurée.
PCT/CN2022/075805 2021-02-24 2022-02-10 Procédé et dispositif pour surveiller un canal physique de commande de liaison descendante WO2022179398A1 (fr)

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CN202110209919.1 2021-02-24
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CN202111255543 2021-10-27
CN202111255543.4 2021-10-27
CN202111278088.XA CN114978446A (zh) 2021-02-24 2021-10-30 一种物理下行控制信道监测的方法及装置
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