WO2022116837A1 - 参考信号的状态确定方法、装置、终端设备及存储介质 - Google Patents

参考信号的状态确定方法、装置、终端设备及存储介质 Download PDF

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Publication number
WO2022116837A1
WO2022116837A1 PCT/CN2021/131326 CN2021131326W WO2022116837A1 WO 2022116837 A1 WO2022116837 A1 WO 2022116837A1 CN 2021131326 W CN2021131326 W CN 2021131326W WO 2022116837 A1 WO2022116837 A1 WO 2022116837A1
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WIPO (PCT)
Prior art keywords
state
reference signal
indication information
pmo
dci
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PCT/CN2021/131326
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English (en)
French (fr)
Inventor
周化雨
雷珍珠
赵思聪
潘振岗
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展讯通信（上海）有限公司
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Publication of WO2022116837A1 publication Critical patent/WO2022116837A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • 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
    • 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
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method, apparatus, terminal device, and storage medium for determining a state of a reference signal.
  • the terminal device When the terminal device is in an idle state, the terminal device needs to monitor the paging physical downlink control channel (PDCCH) used to carry paging messages to determine whether a paging message is sent to itself.
  • PDCCH physical downlink control channel
  • the network device when the terminal device is in an idle state, to monitor the paging PDCCH, the network device needs to send an additional reference signal to the terminal device, so as to reduce the time for the terminal device to wake up in advance before the paging occasion. , and then perform automatic gain control (Automatic Gain Control, AGC) adjustment/time-frequency synchronization (channel tracking) according to the synchronization signal block and the additional reference signal, so as to achieve paging reception and save energy.
  • the additional reference signal is usually a signal that does not exist in the communication system (including the network device and the UE), thus resulting in a larger overhead and a lower capacity of the communication system.
  • the network device in order to reduce the overhead of the communication system and increase the capacity, the network device usually sends the reference signal sent to the terminal device in the connected state to the terminal device in the idle state.
  • the network device usually sends the reference signal sent to the terminal device in the connected state to the terminal device in the idle state, so that the terminal device in the idle state cannot determine whether the reference signal is available after receiving the reference signal.
  • the present application provides a method, an apparatus, a terminal device and a storage medium for determining the state of a reference signal, which are used for the terminal device to determine the state of the reference signal.
  • an embodiment of the present application provides a method for determining a state of a reference signal, which is applied to a terminal device, and the method includes:
  • an embodiment of the present application provides an apparatus for determining a state of a reference signal, which is applied to a terminal device.
  • the apparatus includes: an acquisition module and a determination module, wherein,
  • the determining module is configured to, according to the indication information and/or a preset rule, determine a state of at least one reference signal, and the state is an available state or an unavailable state.
  • an embodiment of the present application provides a terminal device, including: a processor and a memory;
  • memory stores instructions for execution by the computer
  • the processor executes computer-implemented instructions stored in the memory, causing the processor to perform the method as in the first aspect above.
  • embodiments of the present application provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when a processor executes the computer-executable instructions, the method in the first aspect above is implemented.
  • embodiments of the present application provide a computer program product, including a computer program, which implements the method in the first aspect above when the computer program is executed by a processor.
  • Embodiments of the present application provide a method, apparatus, terminal device, and storage medium for determining a state of a reference signal, wherein the method for determining a state of a reference signal includes: acquiring indication information; determining at least one The state of the reference signal.
  • the terminal device determines the state of at least one reference signal according to the indication information, so that after the terminal device receives the reference signal sent by the network device, it can determine the state of the reference signal (ie, whether the reference signal is available).
  • FIG. 1 is an application scenario diagram of a method for determining a state of a reference signal provided by an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a method for determining a state of a reference signal provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a window provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram 1 of a first reference point provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram 1 of a second reference point provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present application.
  • the terminal device when a terminal device is in an idle state, for example, the idle state is an idle mode (idle mode) or a radio resource control (radio resource control, RRC) idle (idle), the terminal device needs to monitor the paging PDCCH.
  • the terminal device needs to determine the paging PDCCH listening occasion (paging) through the configuration of the paging frame (paging frame, PF), the paging occasion (paging occasion, PO) and the paging search space set (paging search space set). PDCCH monitoring occasion), and then monitor the paging PDCCH at the paging PDCCH monitoring occasion.
  • the UE may need to wake up before the three SS-bursts before the PO, and use the three SS-bursts Performing AGC adjustment/time-frequency synchronization or AGC adjustment/time-frequency synchronization/measurement will cause the terminal device to wake up prematurely and in advance, thus causing the terminal device to consume more power.
  • the network device can configure additional reference signals and send them to the terminal device, so that the terminal device can use fewer SS-bursts (such as one) and additional reference signals to perform AGC adjustment/ Time-frequency synchronization, or AGC adjustment/time-frequency synchronization/measurement, so as to prevent the terminal device from waking up prematurely, so as to achieve the purpose of saving the power of the terminal device.
  • additional reference signals such as one
  • the extra reference signal shortens the wake-up time of the terminal equipment and achieves the purpose of saving the power of the terminal equipment
  • the extra reference signal is usually a reference signal that is not in the communication system, so it is necessary to increase the communication system overhead, reducing the capacity of the communication system.
  • a possible enhancement method is to enable the terminal equipment in the idle state to use the reference signal (TRS/CSI-RS) used by the terminal equipment in the connected state, that is, the network equipment shares the reference signal used by the terminal equipment in the connected state to the idle state. state of the terminal equipment, so that the communication system overhead is reduced.
  • TRS/CSI-RS reference signal
  • FIG. 1 is an application scenario diagram of a method for determining a state of a reference signal provided by an embodiment of the present application.
  • the communication system includes: a network device 11 and a plurality of terminal devices.
  • the terminal device 12 and the terminal device 13 are included in the plurality of terminal devices.
  • the terminal device 12 is in a connected state, and the terminal device 13 is in an idle state.
  • the network device 11 may send the reference signal sent to the terminal device 12 to the terminal device 13 .
  • the network device 11 sends the indication information to the terminal device 13, so that after the terminal device 13 receives the indication information, it can determine the state of the reference signal.
  • a network device is a device with a wireless transceiver function.
  • the evolved base station (Evolutional Node B, eNB or eNodeB) in the long term evolution (LTE), the base station (gNodeB or gNB) or TRP in the new radio (new radio, NR) technology, and subsequent
  • a base station in an evolved system an access node, a wireless relay node, a wireless backhaul node, etc. in a wireless fidelity (wireless fidelity, WiFi) system.
  • the base station can be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, or a balloon station, etc. Multiple base stations may support the above-mentioned networks of the same technology, or may support the above-mentioned networks of different technologies.
  • a base station may include one or more co-sited or non-co-sited transmission receiving points (TRPs).
  • TRPs transmission receiving points
  • the terminal device can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, an industrial control (industrial control) ) in wireless terminals, in-vehicle terminal equipment, wireless terminals in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety ( Wireless terminal equipment in transportation safety), wireless terminal equipment in smart city, wireless terminal equipment in smart home, wearable terminal equipment, etc.
  • a mobile phone mobile phone
  • a tablet computer Pad
  • a computer with wireless transceiver function a virtual reality (VR) terminal device
  • AR augmented reality
  • industrial control industrial control
  • FIG. 2 is a schematic flowchart of a method for determining a state of a reference signal provided by an embodiment of the present application. As shown in FIG. 2 , the method for determining the state of the reference signal provided by this embodiment includes:
  • the execution body of the embodiment of the present application may be a terminal device, or may be a state determination apparatus of a reference signal set in the terminal device, and the state determination apparatus may be implemented by a combination of software and/or hardware.
  • the indication information can be obtained through the following methods 101 to 103:
  • the indication information is acquired on a paging monitoring occasion (PMO) or a paging occasion (PO).
  • PMO paging monitoring occasion
  • PO paging occasion
  • Manner 102 Obtain indication information from medium access control (medium access control, MAC) signaling, MAC packet data unit (packet data unit, PDU), or MAC control element (control element, CE).
  • medium access control medium access control
  • PDU packet data unit
  • CE control element
  • the above-mentioned manner 102 can be implemented by the following manner 1021 .
  • the indication information is carried by MAC signaling (or MAC PDU, or MAC CE).
  • MAC signaling or MAC PDU, or MAC CE
  • MAC CE can carry a larger amount of information.
  • the indication information is carried by MAC signaling (or MAC PDU, or MAC CE).
  • MAC signaling or MAC PDU, or MAC CE
  • MAC CE can carry a larger amount of information.
  • the indication information uses bits in the MAC signaling (bits in the MAC PDU or bits in the MAC CE).
  • the terminal device may deduce the start position and/or length of the indication information in the DCI.
  • the terminal device can deduce the position of its own PF or PO in the possible PF or PO in the paging cycle through the configuration information of paging, so as to deduce the starting position and length of the indication information in the DCI .
  • the terminal device can deduce the position of its own PF or PO in the possible PF or PO between the paging indication PDCCH and the next paging indication PDCCH through the paging configuration information, so as to deduce the indication information in the Start position and length in DCI.
  • the length can also be determined by predefined rules. This simplifies higher layer signaling.
  • obtaining the indication information in the DCI includes: determining the starting position and/or length of the indication information in the DCI according to the PF or PO that one needs to monitor; obtaining from the DCI according to the starting position and/or length Instructions.
  • the terminal device may derive the start position and/or length of the indication information in the DCI according to the PF or PO that it needs to monitor.
  • the terminal device can deduce the position of its own PF or PO in a possible PF or PO within a paging cycle, thereby deriving the start position and length of the indication information in the DCI.
  • the terminal device can deduce the position of its own PF or PO in the possible PF or PO between the paging indication PDCCH and the next paging indication PDCCH, thereby deriving the starting position and length of the indication information in the DCI .
  • the length can also be determined by predefined rules. Since high-layer signaling is difficult to configure for a single terminal device in the idle state, signaling can be simplified by deriving the terminal device.
  • obtaining the indication information in the DCI includes: determining the start position and/or length of the indication information in the DCI according to the high-level signaling and the PF or PO that you need to monitor; according to the start position and/or length Get indication information from DCI.
  • the terminal device deduces how many possible PFs or POs there are in the paging cycle through the configuration information of paging, so as to deduce the possible PF or PO positions of its own PF or PO in the paging cycle, and further deduce Indicates the start position and length of the information in the DCI.
  • the terminal device deduces how many possible PFs or POs there are between the paging indication PDCCH and the next paging indication PDCCH through the paging configuration information, so as to deduce its own PF or PO between the paging indication PDCCH and the next paging indication PDCCH.
  • the next paging indicates the possible positions in the PF or PO between the PDCCHs, and further derives the start position and length of the indication information in the DCI.
  • the length can also be determined by predefined rules. In this way, a compromise between signaling control and simplified signaling can be achieved.
  • acquiring the indication information in the DCI includes: the terminal device can also deduce the indication information in the DCI according to the PO subgroup to which it belongs (corresponding to a subgroup or subset of the terminal device group in the PO). The start position and/or length in ; obtain the indication information from the DCI according to the start position and/or length. For example, the terminal device first derives the start position and/or length of the PF or PO in the DCI to which the indication information belongs, and then derives the start position and/or length of the indication information in the DCI according to the PO subgroup to which it belongs.
  • the indication information is carried by the reserved bits in the DCI or the DCI format (DCI format) corresponding to the DCI.
  • the indication information is carried by the reserved bits of the field in the DCI, or the reserved bits of the field in the DCI format.
  • the DCI format may be DCI format 1-0 because the paging PDCCH adopts DCI format 1-0.
  • the indication information is carried by the bits of the redefined field in the DCI, or the bits of the redefined field in the DCI format. bit carry.
  • the DCI format may be DCI format 1-0 because the paging PDCCH adopts DCI format 1-0.
  • the DCI is carried on the paging physical downlink control channel PDCCH.
  • S202 Determine a state of at least one reference signal according to the indication information and/or a preset rule, and the state is an available state or an unavailable state.
  • the states of all reference signals corresponding to the synchronization signal block SSB associated with the PMO (or PO) are determined.
  • the synchronization signal block SSB associated with the PMO (or PO) may correspond to multiple reference signals, and the terminal device determines the status of all the corresponding reference signals, which can save communication system overhead. Since the PMO is the listening opportunity of the paging PDCCH, the PMO and the paging PDCCH are not distinguished hereinafter.
  • the state of at least one reference signal can be determined by the following manners 201 to 203:
  • Manner 201 Determine the state of at least one reference signal according to the indication information.
  • the indication information is carried by the DCI. This increases flexibility.
  • Manner 202 Determine the state of at least one reference signal according to a preset rule.
  • a rule can be preset so that only the reference signal that meets the preset rule is valid.
  • the preset rule stipulates that the reference signal within a window is valid, and the window parameters are configured by semi-static parameters. of.
  • Manner 203 Determine the state of at least one reference signal according to the indication information and a preset rule.
  • the indication information can improve the flexibility, and the preset rules can reduce the reference signal overhead.
  • the combination of the two can improve the flexibility and reduce the reference signal overhead.
  • the indication information indicates that the subsequent reference signal is valid, and the preset rule stipulates that the reference signal within a window is valid, and the combination means that the subsequent reference signal within a window is valid.
  • determining the state of the at least one reference signal includes: determining the state of the at least one reference signal corresponding to the synchronization signal block SSB associated with the PMO (or PO).
  • one PO includes at least one PMO, wherein the PMO is associated with the synchronization signal block one by one, that is, in a PO, the Kth PMO is associated with the Kth SSB, where , and K ranges from 1 to X, where X is the total number of PMOs included in a PO.
  • a PO can also be associated with an SSB.
  • at least one reference signal may be configured to correspond to the SSB (with a QCL relationship) through a transmission configuration indication (transmission configuration indication, TCI), where the TCI is sent by the network device to the network device.
  • at least one reference signal includes a tracking reference signal (tracking reference signal, TRS) and/or a channel state information-reference signal (channel state information-reference signal, CSI-RS).
  • the indication information is 1 bit, and the 1 bit indicates the status of all reference signals corresponding to the SSB associated with the PMO (or PO).
  • the indication information is more than 1 bit, wherein each 1 bit indicates the status of one reference signal corresponding to the SSB associated with the PMO (or PO).
  • the indication information is 1 bit, and 1 bit can be used to indicate the status of all reference signals, which can save the overhead of the communication system.
  • the indication information is more than 1 bit, and one bit corresponds to the state of one reference signal.
  • 1 bit when 1 bit is the first preset value, it can indicate that the state of the reference signal corresponding to the 1 bit is available; when the 1 bit is the second preset value, it can indicate the state of the reference signal corresponding to the 1 bit. is unavailable.
  • the indication information is more than 1 bit, and each 1 bit indicates the status of one reference signal.
  • the overhead of the communication system may increase, it can more accurately indicate the status of each reference signal.
  • the available state indicates that at least one reference signal corresponding to the synchronization signal block SSB associated with the PMO (or PO) is available (available), existing (ie existing, present, presence), or available (useful).
  • determining the state of at least one reference signal according to a preset rule may be implemented in the following manner 2021:
  • the effective time is included in the preset rule.
  • the effective time starts from the start time of the next paging cycle after the PMO or PO, and after the end time of N symbols or time slots or milliseconds after the PMO or PO. That is to say, at the start time of the next paging cycle after the PMO or PO, and after the end time of N symbols or time slots or milliseconds after the PMO or PO, the terminal device considers that the SSB associated with the PMO (or PO) corresponds to The state of the at least one reference signal is an available state or an unavailable state. In this way, the effective time both starts at the next paging cycle after the PMO or PO and lags the PMO or PO for a period of time, avoiding the next paging cycle after the PMO or PO immediately following the PMO or PO end time.
  • determining the state of at least one reference signal according to a preset rule may also be implemented in the following manners 2022 to 2027:
  • Manner 2022 Before PMO (or PO), determine that the state of at least one reference information is an available state.
  • Manner 2023 In the window before the PMO (or PO), determine that the state of at least one reference information is an available state.
  • Manner 2026 Before the second reference point, it is determined that the state of at least one reference signal corresponding to the SSB associated with the PMO (or PO) is an available state. Wherein, the distance PMO (or PO) from the second reference point is the second offset. At this point the second offset may include zero and non-zero positive numbers. Optionally, the second reference point is before the PMO (or PO), and the distance from the PMO (or PO) is the second offset. At this point the second offset may include a non-zero positive number.
  • Manner 2027 In the second window, the state of at least one reference signal corresponding to the SSB associated with the PMO (or PO) is determined to be an available state.
  • the second window is a window in which the second reference point before the PMO (or PO) is the end point.
  • the terminal device may only consider the state of at least one reference signal in the window before the PMO (or PO) to be the available state or the unavailable state. In this way, the overhead of at least one reference signal can be further reduced.
  • the terminal device may only consider the state of at least one reference signal before the PMO (or PO) and after the first reference point with the first offset from the PMO (or PO) as the available state or unavailable state. This avoids the terminal equipment from using at least one reference signal that is too far away from the PMO (or PO). When the terminal device uses at least one reference signal that is too far away from the PMO (or PO), the terminal device does not save energy and increases the overhead of the communication system.
  • the terminal device may only consider the state of at least one reference signal before the PMO (or PO) and before the second reference point with the second offset from the PMO (or PO) as the available state or unavailable state. This prevents the terminal device from using at least one reference signal that is too close to the PMO (or PO).
  • the terminal equipment uses at least one reference signal that is too close to the PMO (or PO) to perform AGC adjustment/time-frequency synchronization, it cannot be applied to PDCCH reception in time.
  • the network device in order to shorten the wake-up time of the terminal device, reduce the overhead of the communication system, and improve the capacity, the network device usually sends the reference signal sent to the terminal device in the connected state to the terminal device in the idle state. , resulting in that the terminal equipment in the idle state cannot determine whether the reference signal is available after receiving the reference signal, thereby shortening the wake-up time of the terminal equipment, reducing the overhead of the communication system, and improving the failure of the capacity communication system.
  • the terminal equipment indicates information and determines the status of at least one reference signal, which enables the terminal equipment to determine whether the reference signal is available, thereby shortening the time for the terminal equipment to wake up, reducing the overhead of the communication system, and improving the capacity of the communication system
  • the purpose is to realize the common optimization of energy saving of terminal equipment, reduction of communication system overhead, and increase of communication system capacity.
  • FIG. 3 is a schematic diagram of a window provided by an embodiment of the present application. As shown in FIG. 3 , in the window before the PMO (or PO), the state of at least one reference information corresponding to the SSB associated with the PMO (or PO) is the available state.
  • FIG. 4 is a schematic diagram 1 of a first reference point provided by an embodiment of the present application. As shown in FIG. 4 , the distance from the first reference point to the PMO or PO is the first offset, and after the first reference point, the state of at least one reference information corresponding to the SSB associated with the PMO (or PO) is the available state.
  • FIG. 5 is a second schematic diagram of a first reference point provided by an embodiment of the present application. As shown in FIG. 5 , in the first window starting from the first reference point, the state of at least one reference information corresponding to the SSB associated with the PMO (or PO) is the available state.
  • FIG. 6 is a schematic diagram 1 of a second reference point provided by an embodiment of the present application. As shown in FIG. 6 , the distance from the first reference point to the PMO or PO is a second offset, and after the second reference point, the state of at least one reference information corresponding to the SSB associated with the PMO (or PO) is an available state.
  • FIG. 7 is a second schematic diagram of a second reference point provided by an embodiment of the present application. As shown in FIG. 7 , in the second window with the second reference point as the end point, after the second reference point, the state of at least one reference information corresponding to the SSB associated with the PMO (or PO) is the available state.
  • FIG. 8 is a schematic structural diagram of an apparatus for determining a state of a reference signal according to an embodiment of the present application.
  • the apparatus 10 for determining the state of the reference signal includes: an acquisition module 101 and a determination module 102
  • the obtaining module 101 is used to obtain instruction information
  • the determining module 102 is configured to, according to the indication information and/or a preset rule, determine a state of at least one reference signal, and the state is an available state or an unavailable state.
  • the determining module 102 is specifically used to:
  • the acquisition module 101 is specifically used for:
  • the acquisition module 101 is specifically used for:
  • the indication information is obtained in downlink control information DCI, medium access control MAC signaling, MAC packet data unit PDU, or MAC control element CE.
  • the obtaining module 101 when obtaining the indication information in the downlink control information DCI, the obtaining module 101 is specifically configured to:
  • the indication information is obtained from the DCI.
  • the indication information is carried by the DCI or the reserved bits in the DCI format corresponding to the DCI.
  • the indication information is carried by the reserved bits of the field in the DCI, or the reserved bits of the field in the DCI format.
  • the indication information is carried by the bits of the redefined field in the DCI, or the bits of the redefined field in the DCI format.
  • the DCI is carried on the paging physical downlink control channel PDCCH.
  • the indication information is 1 bit, and the 1 bit indicates the status of all reference signals corresponding to the SSB associated with the PMO or PO.
  • the indication information is more than 1 bit, wherein each 1 bit indicates the status of one reference signal corresponding to the SSB associated with the PMO or PO.
  • the determination module 102 is also used to:
  • the effective time is any of the following:
  • N is an integer greater than or equal to 1;
  • the determining module 102 is specifically used to:
  • the state of at least one reference information is an available state before the PMO or PO.
  • the determining module 102 is specifically used to:
  • the state of at least one reference information is an available state after the first reference point, wherein the distance from the first reference point to PMO or PO is a first offset.
  • the state of at least one reference information is an available state before the second reference point, wherein the distance from the second reference point to PMO or PO is a second offset.
  • the apparatus 10 for determining a state of a reference signal provided in this embodiment of the present application may execute the technical solutions shown in the foregoing method embodiments, and the implementation principles and beneficial effects thereof are similar, and will not be repeated here.
  • FIG. 9 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present application.
  • the terminal device 20 includes: a processor 201 and a memory 202,
  • the processor 201 and the memory 202 are connected through a bus 203 .
  • the processor may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), special Integrated Circuit (Application Specific Integrated Circuit, ASIC), etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the application can be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • Memory may include high-speed RAM memory, and may also include non-volatile storage NVM, such as disk storage.
  • NVM non-volatile storage
  • the bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, or the like.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into address bus, data bus, control bus and so on.
  • the buses in the drawings of the present application are not limited to only one bus or one type of bus.
  • Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the processor executes the computer-executable instructions, the method for determining the state of the reference signal in the above method embodiments is implemented.
  • Embodiments of the present application further provide a computer program product, including a computer program, when the computer program is executed by a processor, the method for determining the state of a reference signal in the above method embodiments is implemented.
  • the above-mentioned computer-readable storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable Programmable Read Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • An exemplary readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium.
  • the readable storage medium can also be an integral part of the processor.
  • the processor and the readable storage medium may be located in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short).
  • ASIC Application Specific Integrated Circuits
  • the processor and the readable storage medium may also exist in the device as discrete components.
  • division of units is only a logical function division, and other division methods may be used in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • Units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment 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 functions, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请提供一种参考信号的状态确定方法、装置、终端设备及存储介质，其中，参考信号的状态确定方法包括：获取指示信息；根据指示信息和/或预设规则，确定至少一个参考信号的状态，状态为可用状态或者不可用状态。用于使终端设备确定参考信号的状态。

Description

参考信号的状态确定方法、装置、终端设备及存储介质
本申请要求于2020年12月04日提交中国专利局、申请号为202011402942.4、申请名称为“参考信号的状态确定方法、装置、终端设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种参考信号的状态确定方法、装置、终端设备及存储介质。
背景技术
当终端设备处在空闲态时，终端设备需要监听用于承载寻呼消息的寻呼物理下行控制信道(physical downlink control channel，PDCCH)，以确定是否有寻呼消息发送给自己。
在相关技术中，当终端设备处在空闲态时，若要实现监听寻呼PDCCH，则需要在网络设备向终端设备发送额外的参考信号，以减少终端设备在寻呼时机前提前醒来的时间，进而根据同步信号块和额外的参考信号进行自动增益控制(Automatic Gain Control，AGC)调整/时频同步(信道跟踪)等，从而实现接收寻呼并节能。在上述技术中，额外的参考信号通常为通信系统(包括网络设备和UE)中不存在的信号，因此导致通信系统的开销较大、容量降低。目前，为了使通信系统的开销降低、容量提高，网络设备通常将发送给连接态的终端设备的参考信号，发送给空闲态的终端设备。
但是，网络设备通常将发送给连接态的终端设备的参考信号，发送给空闲态的终端设备，导致空闲态的终端设备接收到参考信号之后，无法确定参考信号是否可用。
发明内容
本申请提供一种参考信号的状态确定方法、装置、终端设备及存储介质，用于使终端设备确定参考信号的状态。
第一方面，本申请实施例提供一种参考信号的状态确定方法，应用于终端设备，该方法包括：
获取指示信息；
根据指示信息和/或预设规则，确定至少一个参考信号的状态，状态为可用状态或者不可用状态。
第二方面，本申请实施例提供一种参考信号的状态确定装置，应用终端设备，该装置包括：获取模块和确定模块，其中，
获取模块用于，获取指示信息；
确定模块用于，根据指示信息和/或预设规则，确定至少一个参考信号的状态，状态为可用状态或者不可用状态。
第三方面，本申请实施例提供一种终端设备，包括：处理器和存储器；
存储器存储计算机执行指令；
处理器执行存储器存储的计算机执行指令，使得处理器执行如上第一方面中的方法。
第四方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机执行指令，当处理器执行计算机执行指令时，实现如上第一方面中的方法。
第五方面，本申请实施例提供一种计算机程序产品，包括计算机程序，计算机程序被处理器执行时实现如上第一方面中的方法。
在本申请实施例提供一种参考信号的状态确定方法、装置、终端设备及存储介质，其中，参考信号的状态确定方法包括：获取指示信息；根据指示信息和/或预设规则，确定至少一个参考信号的状态。上述方法中，终端设备根据指示信息确定至少一个参考信号的状态，可以使得在终端设备接收到网络设备发送的参考信号之后，能够确定参考信号的状态(即参考信号是否可用)。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的参考信号的状态确定方法的应用场景图；
图2是本申请实施例提供的参考信号的状态确定方法的流程示意图；
图3为本申请实施例提供的窗口的示意图；
图4为本申请实施例提供的第一参考点的示意图一；
图5为本申请实施例提供的第一参考点的示意图二；
图6为本申请实施例提供的第二参考点的示意图一；
图7为本申请实施例提供的第二参考点的示意图二；
图8为本申请实施例提供的参考信号的状态确定装置的结构示意图；
图9为本申请实施例提供的终端设备的硬件结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例，例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或 对于这些过程、方法、产品或设备固有的其它步骤或单元。
在现有技术中，当终端设备处于空闲态时，例如空闲态为空闲模式(idle mode)或者无线资源控制(radio resource control，RRC)空闲(idle)，终端设备需要监听寻呼PDCCH。一般来说，终端设备需要通过寻呼帧(paging frame，PF)、寻呼时机(paging occasion，PO)和寻呼搜索空间集(paging search space set)的配置来确定寻呼PDCCH监听时机(paging PDCCH monitoring occasion)，进而在寻呼PDCCH监听时机上监听寻呼PDCCH。在5G新空口(new radio，NR)中，终端设备根据同步信号块(synchronization signal block，SSB)进行AGC调整/时频跟踪(信道跟踪)/测量，之后才能在寻呼时机上监听寻呼PDCCH。在实际应用中，同步信号块突发(synchronization signal-burst，SS-burst)(每个SS-burst中包括一个或多个SSB)并不是每个子帧或每个时隙中都存在，而是以某个时间周期(例如5毫秒、10毫秒、20毫秒等)被发送，因此一般来说，终端设备至少需要在PO前的最后两个SS-burst前醒来，并使用这两个SS-burst进行AGC调整/时频同步、或者进行AGC调整/时频同步/测量。当终端设备经历了长时间睡眠，例如PO配置导致的终端设备需要监听的两个PO间隔较大，UE可能需要在PO前的三个SS-burst前醒来，并使用这三个SS-burst进行AGC调整/时频同步、或者AGC调整/时频同步/测量，这样会导致终端设备需要过早地提前醒来，进而使得终端设备比较耗电。
进一步地，在现有技术中，网络设备可以配置额外的参考信号，并向终端设备发送，使终端设备可以使用较少的SS-burst(如一个)和额外的参考信号，来进行AGC调整/时频同步、或者AGC调整/时频同步/测量，这样避免终端设备过早地提前醒来，从而达到节省终端设备的电量的目的。
在上述现有技术中，额外的参考信号虽然缩短终端设备醒来的时间，达到节省终端设备的电量的目的，但是额外的参考信号通常是通信系统里没有的参考信号，因此需要增加了通信系统的开销，降低了通信系统的容量。对于这点，可能的增强方式是使得空闲态的终端设备可以利用连接态的终端设备使用的参考信号(TRS/CSI-RS)，即网络设备将连接态的终端设备使用的参考信号分享给空闲态的中终端设备，以使通信系统开销降低。但是连接态的终端设备的参考信号可能随着某个连接态的终端设备离开连接态(RRC释放release)，而使得参考信号不可用(或不存在或者无效)了，此时需要通知空闲态的终端设备该参考信号不可用了。
因此，如何通知空闲态的终端设备参考信号是否可用，是一个亟待解决的问题。为了解决上述问题，本申请实施例提供一种参考信号的状态确定方法，使得终端设备可以在寻呼监听时机(paging monitoring occasion，PMO)上获取指示信息，确定参考信号状态(为可以用状态或者不可用状态)，即使得终端设备能够确定参考信号是否可用，从而解决空闲态的终端设备无法确定参考信号是否可用的技术问题。
下面结合图1，对本申请实施例提供的参考信号的状态确定方法的应用场景进行说明。
图1为本申请实施例提供的参考信号的状态确定方法的应用场景图。如图1所示，通信系统包括：网络设备11和多个终端设备。例如，多个终端设备中包括终端设备12和终端设备13。其中，终端设备12处于连接态，终端设备13处于空闲态。网络设备11可以将发送给终端设备12的参考信号，发送给终端设备13。网络设备11向终端设备13发送指示信息，以使终端设备13接收到指示信息之后，可以确定参考信号的状态。
在本申请中，网络设备：是一种具有无线收发功能的设备。包括但不限于：长期演进(long term evolution，LTE)中的演进型基站(Evolutional Node B，eNB或eNodeB)，新空口(new radio，NR)技术中的基站(gNodeB或gNB)或TRP，后续演进系统中的基站，无线保真(wireless fidelity，WiFi)系统中的接入节点，无线中继节点，无线回传节点等。基站可以是：宏基站，微基站，微微基站，小站，中继站，或，气球站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的收发点(transmission receiving point，TRP)。
在本申请中，终端设备：是一种具有无线收发功能的设备。终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、车载终端设备、无人驾驶(self-driving)中的无线终端、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备、可穿戴终端设备等。本申请实施例所涉及的终端设备还可以称为终端、用户设备(user equipment，UE)、接入终端设备、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。终端设备也可以是固定的或者移动的。
下面以具体地实施例对本申请的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图2是本申请实施例提供的参考信号的状态确定方法的流程示意图。如图2所示，本实施例提供的参考信号的状态确定方法包括：
S201、获取指示信息。
可选地，本申请实施例的执行主体可以为终端设备，也可以为设置在终端设备中的参考信号的状态确定装置，该状态确定装置可以通过软件和/或硬件的结合来实现。
具体的，可以通过如下方式101至方式103，获取指示信息：
方式101，在寻呼监听时机(paging monitoring occasion，PMO)或寻呼时机(paging occasion，PO)上获取指示信息。
方式102，媒质接入控制(medium access control，MAC)信令、MAC包数据单元(packet data unit，PDU)、或者MAC控制单元(control element，CE)中获取指示信息。
方式103，在下行控制信息(downlink control information，DCI)中获取指示信息。
针对上述方式102，可以通过如下方式1021实现。
方式1021，在MAC信令(或者MAC PDU、或者MAC CE)中获取指示信息，可以包括：根据高层信令，确定指示信息在MAC信令(或者MAC PDU、或者MAC CE)中开始位置和/或长度；
根据开始位置和/或长度，从MAC信令(或者MAC PDU、或者MAC CE)中获取指示信息。
具体的，当DCI中的频域资源分配有效时，指示信息由MAC信令(或者MAC PDU、 或者MAC CE)携带。MAC信令(或者MAC PDU、或者MAC CE)可以携带较多的信息量。
具体的，当DCI承载调度信息、且DCI中的频域资源分配有效时，指示信息由MAC信令(或者MAC PDU、或者MAC CE)携带。MAC信令(或者MAC PDU、或者MAC CE)可以携带较多的信息量。
其中，指示信息使用MAC信令中的比特(MAC PDU中的比特、或者MAC CE中的比特)。
针对上述方式103，具体可以方式如下可行方式1031实现：
方式1031，根据高层信令，确定指示信息在DCI中的开始位置和/或长度；根据开始位置和/或长度，从DCI中获取指示信息。
可选地，高层信令可以为网络设备向终端设备发送的，直接配置指示信息在DCI中的开始位置和长度。例如，若DCI的长度为10比特、开始位置为第3比特、长度为2比特，则DCI中的第3比特和第4比特为指示信息。
可选地，根据高层信令，终端设备可以推导出指示信息在DCI中的开始位置和/或长度。例如，终端设备可以通过寻呼的配置信息，推导出自己的PF或PO在寻呼循环(paging cycle)内可能的PF或PO中的位置，从而推导出指示信息在DCI中的开始位置和长度。又例如，终端设备可以通过寻呼的配置信息，推导出自己的PF或PO在寻呼指示PDCCH到下一个寻呼指示PDCCH之间的可能的PF或PO中的位置，从而推导出指示信息在DCI中的开始位置和长度。可选的，长度也可以通过预定义的规则来确定。这样可以简化高层信令。
在一种可能的设计中，在DCI中获取指示信息包括：根据自己需要监听的PF或PO，确定指示信息在DCI中的开始位置和/或长度；根据开始位置和/或长度从DCI中获取指示信息。
可选地，终端设备可以根据自己需要监听的PF或PO，推导出指示信息在DCI中的开始位置和/或长度。例如，终端设备可以推导出自己的PF或PO在寻呼循环(paging cycle)内可能的PF或PO中的位置，从而推导出指示信息在DCI中的开始位置和长度。又例如，终端设备可以推导出自己的PF或PO在寻呼指示PDCCH到下一个寻呼指示PDCCH之间的可能的PF或PO中的位置，从而推导出指示信息在DCI中的开始位置和长度。可选的，长度也可以通过预定义的规则来确定。由于空闲态时，高层信令难以为单个终端设备进行配置，因此通过终端设备推导是可以简化信令的。
在一种可能的设计中，在DCI中获取指示信息包括：根据高层信令和自己需要监听的PF或PO，确定指示信息在DCI中的开始位置和/或长度；根据开始位置和/或长度从DCI中获取指示信息。例如，终端设备通过寻呼的配置信息，推导出寻呼循环内有多少个可能的PF或PO，从而推导出自己的PF或PO在寻呼循环内可能的PF或PO的位置，进一步推导出指示信息在DCI中的开始位置和长度。又例如，终端设备通过寻呼的配置信息，推导出寻呼指示PDCCH到下一个寻呼指示PDCCH之间有多少个可能的PF或PO，从而推导出自己的PF或PO在寻呼指示PDCCH到下一个寻呼指示PDCCH之间的可能的PF或PO中的位置，进一步推导出指示信息在DCI中的开始位置和长度。可选的，长度也可以通过预定义的规则来确定。这样可以做到信令控制和简化信令的折中。
在一种可能的设计中，在DCI中获取指示信息包括：终端设备还可以根据自己所属的PO子组(对应PO内的终端设备组的一个子组或子集)，推导出指示信息在DCI中的开始位置和/或长度；根据开始位置和/或长度从DCI中获取指示信息。例如，终端设备先推导出指示信息所属PF或PO在DCI中的开始位置和/或长度，再根据自己所属的PO子组，推导出指示信息在DCI中的开始位置和/或长度。
在一种可能的设计中，根据高层信令，终端设备可以推导出DCI的总长度；根据总长度从DCI中获取指示信息。只有获得DCI的总长度，终端设备才能正常解码出DCI。例如，终端设备可以通过寻呼的配置信息，推导出寻呼循环(paging cycle)内可能的PF或PO的个数，从而推导出DCI总长度。又例如，终端设备可以通过寻呼的配置信息，推导出寻呼PDCCH到下一个寻呼PDCCH之间的可能的PF或PO中的个数，从而推导出DCI总长度。可选的，长度也可以通过预定义的规则来确定。这样可以简化高层信令。
在一种可能的设计中，终端设备还可以根据PO子组(对应PO内的终端设备组的一个子组或子集)的参数，推导出DCI总长度；根据总长度从DCI中获取指示信息。例如，终端设备先推导出可能的PF或PO的个数，再根据PO子组参数(例如一个PO内的PO子组数)，推导出DCI总长度。
针对上述方式1031，指示信息由DCI或DCI对应的DCI格式(DCI format)中的保留比特携带。
具体的，当DCI没有承载调度信息时，指示信息由DCI中的域的保留比特携带，或者DCI格式中的域的保留比特携带。该DCI格式可以是DCI格式1-0，因为寻呼PDCCH采用DCI格式1-0。
具体的，当DCI中的频域资源分配无效时，指示信息由DCI中的重定义的域的比特携带，或者DCI对应的DCI格式中的重定义的域的比特携带。该DCI格式可以是DCI格式1-0，因为寻呼PDCCH采用DCI格式1-0。
在另一种可能的设计中，当DCI承载调度信息、且DCI中的频域资源分配无效时，指示信息由DCI中的重定义的域的比特携带，或者DCI格式中的重定义的域的比特携带。该DCI格式可以是DCI格式1-0，因为寻呼PDCCH采用DCI格式1-0。
具体的，DCI承载在寻呼物理下行控制信道PDCCH上。
S202，根据指示信息和/或预设规则，确定至少一个参考信号的状态，状态为可用状态或者不可用状态。
在一种可能的设计中，确定PMO(或PO)关联的同步信号块SSB对应的所有参考信号的状态。PMO(或PO)关联的同步信号块SSB可能对应多个参考信号，终端设备确定对应的所有的参考信号的状态，可以节省通信系统开销。由于PMO为寻呼PDCCH的监听时机，因此下文中不区分PMO和寻呼PDCCH。
在一种可能的设计中，确定PMO(或PO)关联的同步信号块SSB对应的一个参考信号的状态。PMO(或PO)关联的同步信号块SSB可能只对应一个参考信号，终端设备确定对应的一个参考信号的状态，可以更有针对性、更准确。
具体的，可以通过如下方式201至方式203，确定至少一个参考信号的状态：
方式201，根据指示信息，确定至少一个参考信号的状态。
如前述指示信息是DCI携带的。这样可以提高灵活性。
方式202，根据预设规则，确定至少一个参考信号的状态。
为了降低参考信号的系统开销，可以预设规则，让仅仅满足预设规则的参考信号是有效的，例如预设规则规定在一个窗口内的参考信号是有效的，窗口参数是通过半静态参数配置的。
方式203，根据指示信息和预设规则，确定至少一个参考信号的状态。
指示信息可以提高灵活性，而预设规则可以降低参考信号开销，两者结合起来可以既提高灵活性，又降低参考信号开销。例如，指示信息指示后续参考信号有效，而预设规则规定在一个窗口内的参考信号是有效的，结合起来就是后续的在一个窗口内的参考信号是有效的。针对上述201至方式203，确定至少一个参考信号的状态，包括：确定PMO(或PO)关联的同步信号块SSB对应的至少一个参考信号的状态。
在Rel-15新空口(new radio，NR)中，一个PO内包括至少一个PMO，其中，PMO和同步信号块一一关联，即在一个PO内，第K个PMO关联第K个SSB，其中，K的取值为1～X，X为一个PO中包括的PMO的总个数。在某些场景中，一个PO也可以关联一个SSB。其中，至少一个参考信号可以通过传输配置指示(transmission configuration indication，TCI)被配置为与SSB对应(具有QCL关系)，其中，TCI为网络设备向网络设备发送的。其中，至少一个参考信号包括跟踪参考信号(tracking reference signal，TRS)和/或信道状态信息参考信号(channel state information–reference signal，CSI-RS)。
针对上述方式201，根据指示信息，确定PMO(或PO)关联的同步信号块SSB对应的至少一个参考信号的状态时，可以通过如下方式2011和方式2012实现。
方式2011，指示信息为1比特，该1比特指示PMO(或PO)关联的SSB对应的所有参考信号的状态。
方式2012，指示信息多于1比特，其中每个1比特指示PMO(或PO)关联的SSB对应的一个参考信号的状态。
例如，指示信息为1比特，当该1比特为第一预设值时，指示上述所有参考信号的状态为可用状态；当该1比特为第二预设值时，指示上述所有参考信号的状态为不可用状态。其中，第一预设值可以为0、或者1，第二预设值可以为1、或者0。例如，当第一预设值为1时，第二预设值为0；当第一预设值为0时，第二预设值为1。
在本申请中，指示信息为1比特，可以使用1比特指示所有参考信号的状态，可以节省通信系统的开销。
例如，指示信息多于1比特，一个1比特对应一个参考信号的状态。例如，当1比特为第一预设值时，可以指示该1比特对应的参考信号的状态为可用状态；当1比特为第二预设值时，可以指示该1比特对应的参考信号的状态为不可用状态。
在本申请中，指示信息多于1比特，每个1比特指示一个参考信号的状态，虽然可能会使得通信系统的开销增大，但是更能准确地指示每个参考信号的状态。
需要说明的是，可用状态指示PMO(或PO)关联的同步信号块SSB对应的至少一个参考信号是有效的(available)、存在的(即existing，present，presence)、或者可用的(useful)。
针对上述方式202，根据预设规则，确定至少一个参考信号的状态的，可以通过如下方式2021实现：
方式2021中，在生效时间之后，确定至少一个参考信号的状态，其中，
生效时刻为如下中的任意一种：
PMO或PO之后的下一个寻呼循环(paging cycle)的开始时刻；
PMO或PO之后的N正交频分复用(orthogonal frequency division multiplexing，OFDM)符号的结束时刻、或者N个时隙的结束时刻、或者N个毫秒的结束时刻，N为大于或等于1的整数。
在上述方式2021中，生效时间包括在预设规则中。
生效时间开始于该PMO或PO之后的下一个寻呼循环(paging cycle)的开始时刻。也就是说，该PMO或PO之后的下一个寻呼循环开始时，终端设备认为PMO(或PO)关联的SSB对应的至少一个参考信号的状态为可用状态或不可用状态。一般来说，对于AGC调整/时频同步，当前寻呼循环中该PMO或PO之后的至少一个参考信号对该PMO或PO是帮助不大的，因为就算进行了AGC调整/时频同步，调整后结果也不能用于当前PMO或PO的接收)，因此生效时间开始于下一个寻呼循环是更合理的。
生效时间开始于该PMO或PO后的N个符号或时隙或毫秒的结束时刻。也就是说，该PMO或PO后的N个符号或时隙或毫秒结束时刻之后，终端设备认为该PMO(或PO)关联的SSB对应的至少一个参考信号的状态为可用状态或不可用状。因为在该PMO或PO到达时，终端设备需要一定的时间进行PDCCH的接收和解码，只有在解码成功好终端设备才能确定该指示信息，因此生效时间要滞后一段时间。
生效时间开始于该PMO或PO之后的下一个寻呼循环的开始时刻，且该PMO或PO之后的N个符号或时隙或毫秒结束时刻之后。也就是说，该PMO或PO之后的下一个寻呼循环开始时刻，且该PMO或PO之后的N个符号或时隙或毫秒结束时刻之后，终端设备认为该PMO(或PO)关联的SSB对应至少一个参考信号的状态为可用状态或不可用状。这样，生效时间既开始于该PMO或PO之后的下一个寻呼循环，又滞后于该PMO或PO一段时间，避免PMO或PO之后的下一个寻呼循环紧接着该PMO或PO结束时间。
针对上述方式202，根据预设规则，确定至少一个参考信号的状态的，还可以通过如下方式2022至方式方式2027实现：
方式2022、在PMO(或PO)之前，确定至少一个参考信息的状态为可用状态。
方式2023、在PMO(或PO)之前的窗口内，确定至少一个参考信息的状态为可用状态。
方式2024、确定第一参考点之后，至少一个参考信号的状态为可用状态。其中，第一参考点距离PMO(或者PO)为第一偏移量。此时第一偏移量可以包括零和非零正数。第一参考点在PMO(或者PO)之前，且距离PMO(或者PO)为第一偏移量。此时第一偏移量可以包括非零正数。
方式2025、确定在第一窗口内，PMO(或PO)关联的SSB对应的至少一个参考信号的状态为可用状态。其中，第一窗口为PMO(或者PO)之前的第一参考点为起点的窗口。
方式2026，确定在第二参考点之前，PMO(或PO)关联的SSB对应的至少一个参考信号的状态为可用状态。其中，第二参考点距离PMO(或者PO)为第二偏移量。此时第二偏移量可以包括零和非零正数。可选的，第二参考点在PMO(或者PO)之前，且距离PMO(或者PO)为第二偏移量。此时第二偏移量可以包括非零正数。
方式2027，确定在第二窗口内，PMO(或PO)关联的SSB对应的至少一个参考信号 的状态为可用状态。其中，第二窗口为PMO(或者PO)之前的第二参考点为终点的窗口。
可选地，上述第一参考点、第一偏移量、第二参考点、第二偏移量均可以为预设规则指定的。
可选地，上述第一参考点、第二参考点可以为预设规则指定的，第一偏移量和第二偏移量可以包含在信令中的。
在本申请中，终端设备可以仅仅认为PMO(或PO)之前的窗口内的至少一个参考信号的状态为可用状态或者不可用状态。这样可以进一步减少至少一个参考信号的开销。
在本申请中，终端设备可以仅仅认为在PMO(或PO)之前的、距离PMO(或PO)为第一偏移量的第一参考点之后的至少一个参考信号的状态为可用状态或者不可用状态。这样避免终端设备使用与PMO(或PO)距离太远的至少一个参考信号。当终端设备使用与PMO(或PO)距离太远的至少一个参考信号时，既没有使终端设备节能，又加大了通信系统的开销。
在本申请中，终端设备可以仅仅认为在PMO(或PO)之前的、距离PMO(或PO)为第二偏移量的第二参考点之前的至少一个参考信号的状态为可用状态或者不可用状态。这样避免终端设备使用与PMO(或PO)距离太近的至少一个参考信号。在实际中，当终端设备使用与PMO(或PO)距离太近的至少一个参考信号进行AGC调整/时频同步时，也无法及时应用于PDCCH的接收。
在本实施例提供的参考信号的状态确定方法中，获取指示信息；根据指示信息，确定至少一个参考信号的状态。上述方法中，终端设备根据指示信息确定至少一个参考信号的状态，可以使得在终端设备接收到网络设备发送的参考信号之后，能够确定参考信号的状态(即参考信号是否可用)。
进一步地，在现有技术中，为了缩短终端设备醒来的时长、使通信系统的开销降低、容量提高，网络设备通常将发送给连接态的终端设备的参考信号，发送给空闲态的终端设备，导致空闲态的终端设备接收到参考信号之后，无法确定参考信号是否可用，进而导致缩短终端设备醒来的时长、降低通信系统的开销、提高容量通信系统的失败。在本申请中，终端设备指示信息，确定至少一个参考信号的状态，可以使得终端设备能够确定参考信号是否可用，从而达到缩短终端设备醒来的时长、降低通信系统的开销、提高通信系统的容量的目的，即实现终端设备的节能、降低通信系统的开销、提高通信系统的容量的共同优化。
上述实施例的基础上，下面结合图3至图7，对窗口、第一参考点、第二参考点进行说明。
图3为本申请实施例提供的窗口的示意图。如图3所示，在PMO(或者PO)之前的窗口内，PMO(或者PO)关联的SSB对应的至少一个参考信息的状态为可用状态。
图4为本申请实施例提供的第一参考点的示意图一。如图4所示，第一参考点距离PMO或PO为第一偏移量，在第一参考点之后，PMO(或者PO)关联的SSB对应的至少一个参考信息的状态为可用状态。
图5为本申请实施例提供的第一参考点的示意图二。如图5所示，以第一参考点为起点的第一窗口内，PMO(或者PO)关联的SSB对应的至少一个参考信息的状态为可用状态。
图6为本申请实施例提供的第二参考点的示意图一。如图6所示，第一参考点距离PMO或PO为第二偏移量，在第二参考点之后，PMO(或者PO)关联的SSB对应的至少一个参考信息的状态为可用状态。
图7为本申请实施例提供的第二参考点的示意图二。如图7所示，以第二参考点为终点的第二窗口的，在第二参考点之后，PMO(或者PO)关联的SSB对应的至少一个参考信息的状态为可用状态。
图8为本申请实施例提供的参考信号的状态确定装置的结构示意图。如图8所示，参考信号的状态确定装置10包括：获取模块101和确定模块102
获取模块101用于，获取指示信息；
确定模块102用于，根据指示信息和/或预设规则，确定至少一个参考信号的状态，状态为可用状态或者不可用状态。
本申请实施例提供的参考信号的状态确定装置10可以执行上述方法实施例所示的技术方案，其实现原理以及有益效果类似，此处不再进行赘述。
在一种可能的设计中，确定模块102具体用于：
确定寻呼监听时机PMO或寻呼时机PO关联的同步信号块SSB对应的至少一个参考信号的状态。
在一种可能的设计中，获取模块101具体用于：
在PMO或PO上获取指示信息。
在一种可能的设计中，获取模块101具体用于：
在下行控制信息DCI、媒质接入控制MAC信令、MAC包数据单元PDU、或者MAC控制单元CE中获取指示信息。
在一种可能的设计中，在下行控制信息DCI中获取指示信息时，获取模块101具体用于：
根据高层信令，确定指示信息在DCI中的开始位置和/或长度；
根据开始位置和/或长度，从DCI中获取指示信息。
在一种可能的设计中，指示信息由DCI或DCI对应的DCI格式中的保留比特携带。
在一种可能的设计中，当DCI没有承载调度信息时，指示信息由DCI中域的保留比特携带，或者DCI格式中的域的保留比特携带。
在一种可能的设计中，DCI中的频域资源分配无效时，指示信息由DCI中的重定义的域的比特携带，或者DCI格式中的重定义的域的比特携带。
在一种可能的设计中，DCI中承载在寻呼物理下行控制信道PDCCH上。
在一种可能的设计中，指示信息为1比特，该1比特指示PMO或PO关联的SSB对应的所有参考信号的状态。
在一种可能的设计中，指示信息多于1比特，其中每个1比特指示PMO或PO关联的SSB对应的一个参考信号的状态。
在一种可能的设计中，确定模块102还用于：
在生效时间之后，确定至少一个参考信号的状态；
其中，生效时间为如下任意一种：
PMO或PO之后的下一个寻呼循环的开始时刻；
PMO或PO之后的N正交频分复用OFDM符号的结束时刻、或者N个时隙的结束时刻、或者N个毫秒的结束时刻，N为大于或等于1的整数；
PMO或PO之后的下一个寻呼循环的开始时刻之后，且在PMO或PO之后的N个OFDM符号的结束时刻、或者N个时隙的结束时刻、或者N个毫秒的结束时刻之前。
在一种可能的设计中，确定模块102具体用于：
确定在PMO或PO之前，至少一个参考信息的状态为可用状态。
在一种可能的设计中，确定模块102具体用于：
确定在第一参考点之后，至少一个参考信息的状态为可用状态，其中，第一参考点距离PMO或PO为第一偏移量。
在一种可能的设计中，确定模块102具体用于：
确定在第二参考点之前，至少一个参考信息的状态为可用状态，其中，第二参考点距离PMO或PO为第二偏移量。
本申请实施例提供的参考信号的状态确定装置10可以执行上述方法实施例所示的技术方案，其实现原理以及有益效果类似，此处不再进行赘述。
图9为本申请实施例提供的终端设备的硬件结构示意图。如图9所示，该终端设备20包括：处理器201和存储器202，
其中，处理器201、存储器202通过总线203连接。
在具体实现过程中，处理器201执行存储器202存储的计算机执行指令，使得处理器201执行上述方法实施例中的参考信号的状态确定方法。
处理器201的具体实现过程可参见上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
在上述图9所示的实施例中，应理解，处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合申请所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
存储器可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如磁盘存储器。
总线可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示，本申请附图中的总线并不限定仅有一根总线或一种类型的总线。
本申请实施例还提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机执行指令，当处理器执行计算机执行指令时，实现上述方法实施例中的参考信号的状态确定方法。
本申请实施例还提供一种计算机程序产品，包括计算机程序，计算机程序被处理器执行时实现上述方法实施例中的参考信号的状态确定方法。
上述的计算机可读存储介质，上述可读存储介质可以是由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只 读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。可读存储介质可以是通用或专用计算机能够存取的任何可用介质。
一种示例性的可读存储介质耦合至处理器，从而使处理器能够从该可读存储介质读取信息，且可向该可读存储介质写入信息。当然，可读存储介质也可以是处理器的组成部分。处理器和可读存储介质可以位于专用集成电路(Application Specific Integrated Circuits，简称：ASIC)中。当然，处理器和可读存储介质也可以作为分立组件存在于设备中。
单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (19)

  1. 一种参考信号的状态确定方法，其特征在于，应用于终端设备，所述方法包括：
    获取指示信息；
    根据所述指示信息和/或预设规则，确定至少一个参考信号的状态，所述状态为可用状态或者不可用状态。
  2. 根据权利要求1所述的方法，其特征在于，所述确定至少一个参考信号的状态，包括：
    确定寻呼监听时机PMO或寻呼时机PO关联的同步信号块SSB对应的至少一个参考信号的状态。
  3. 根据权利要求1所述的方法，其特征在于，所述获取指示信息包括：
    在所述PMO或所述PO上获取指示信息。
  4. 根据权利要求1所述的方法，其特征在于，所述获取指示信息包括：
    在媒质接入控制MAC信令、MAC包数据单元PDU、或者MAC控制单元CE中获取所述指示信息。
  5. 根据权利要求1所述的方法，其特征在于，在下行控制信息DCI中获取所述指示信息，包括：
    根据高层信令，确定所述指示信息在所述DCI中的开始位置和/或长度；
    根据所述开始位置和/或长度，从所述DCI中获取所述指示信息。
  6. 根据权利要求5所述的方法，其特征在于，所述指示信息由所述DCI或所述DCI对应的DCI格式中的保留比特携带。
  7. 根据权利要求6所述的方法，其特征在于，当所述DCI中没有承载调度信息时，所述指示信息由所述DCI中域的保留比特携带，或者所述DCI格式中的域的保留比特携带。
  8. 根据权利要求6所述的方法，其特征在于，当所述DCI中的频域资源分配无效时，所述指示信息由所述DCI中的重定义的域的比特携带，或者所述DCI格式中的重定义的域的比特携带。
  9. 根据权利要求5至8中任一项所述的方法，其特征在于，所述DCI中承载在寻呼物理下行控制信道PDCCH上。
  10. 根据权利要求2所述的方法，其特征在于，所述指示信息为1比特，该1比特指示所述PMO或所述PO关联的SSB对应的所有参考信号的状态。
  11. 根据权利要求2所述的方法，其特征在于，所述指示信息多于1比特，其中每个1比特指示所述PMO或所述PO关联的SSB对应的一个参考信号的状态。
  12. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    在生效时间之后，确定至少一个参考信号的状态；
    其中，生效时间为如下任意一种：
    所述PMO或所述PO之后的下一个寻呼循环的开始时刻；
    所述PMO或所述PO之后的N正交频分复用OFDM符号的结束时刻、或者N个时隙的结束时刻、或者N个毫秒的结束时刻，所述N为大于或等于1的整数；
    所述PMO或所述PO之后的下一个寻呼循环的开始时刻之后，且在所述PMO或所述PO之后的N个OFDM符号的结束时刻、或者N个时隙的结束时刻、或者N个毫秒的结 束时刻之前。
  13. 根据权利要求2所述的方法，其特征在于，所述确定至少一个参考信号的状态，包括：
    确定在所述PMO或所述PO之前，所述至少一个参考信息的状态为可用状态。
  14. 根据权利要求2所述的方法，其特征在于，所述确定至少一个参考信号的状态，包括：
    确定在第一参考点之后，所述至少一个参考信息的状态为可用状态，其中，所述第一参考点距离所述PMO或所述PO为第一偏移量。
  15. 根据权利要求2所述的方法，其特征在于，所述确定至少一个参考信号的状态，包括：
    确定在第二参考点之前，所述至少一个参考信息的状态为可用状态，其中，所述第二参考点距离所述PMO或所述PO为第二偏移量。
  16. 一种参考信号的状态确定装置，其特征在于，应用终端设备，所述装置包括：获取模块和确定模块，其中，
    所述获取模块用于，获取指示信息；
    所述确定模块用于，根据所述指示信息和/或预设规则，确定至少一个参考信号的状态，所述状态为可用状态或者不可用状态。
  17. 一种终端设备，其特征在于，包括：处理器和存储器；
    存储器存储计算机执行指令；
    处理器执行存储器存储的计算机执行指令，使得处理器执行如权利要求1至15中任一项所述的方法。
  18. 一种计算机可读存储介质，其特征在于，计算机可读存储介质中存储有计算机执行指令，当处理器执行计算机执行指令时，实现如权利要求1至15中任一项所述的方法。
  19. 一种计算机程序产品，包括计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至15中任一项所述的方法。
PCT/CN2021/131326 2020-12-04 2021-11-17 参考信号的状态确定方法、装置、终端设备及存储介质 WO2022116837A1 (zh)

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