WO2021057147A1 - 一种信号传输方法和装置 - Google Patents

一种信号传输方法和装置 Download PDF

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Publication number
WO2021057147A1
WO2021057147A1 PCT/CN2020/098928 CN2020098928W WO2021057147A1 WO 2021057147 A1 WO2021057147 A1 WO 2021057147A1 CN 2020098928 W CN2020098928 W CN 2020098928W WO 2021057147 A1 WO2021057147 A1 WO 2021057147A1
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Prior art keywords
information
terminal device
pdcch
bwp
signals
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PCT/CN2020/098928
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English (en)
French (fr)
Inventor
薛祎凡
周涵
王键
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华为技术有限公司
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Publication of WO2021057147A1 publication Critical patent/WO2021057147A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • 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
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communications, and in particular to a signal transmission method and device.
  • the definition is not (non) DRX cycle (discontinuous reception cycle, DRX cycle ).
  • the DRX cycle consists of "On Duration” and "Opportunity for DRX". Among them, On Duration can be called the startup duration, and Opportunity for DRX can be called the DRX opportunity.
  • the user equipment UE
  • the active period and can monitor and receive the physical downlink control channel (PDCCH);
  • PDCCH physical downlink control channel
  • the UE is in the dormant period , Do not receive PDCCH to reduce power consumption.
  • a method based on power saving signal/power saving signal is proposed: as shown in the figure As shown in 2, before the start of the DRX cycle (that is, before OnDuration), the network device may send a power consumption saving signal to the UE to instruct the UE to enter the sleep state in one or more DRX cycles.
  • the power saving signal can also be used to wake up the UE in the sleep state.
  • the power saving signal can be sent repeatedly (the information carried in the power saving signal sent multiple times is the same). On the one hand, repeated sending can enhance the equivalent received power, and the other On the one hand, in the case of millimeter waves, the signal is transmitted through a directional beam, and repeated transmission of multiple beams can also improve directional coverage.
  • the UE may monitor the power saving signal at multiple monitoring occasions of the power saving signal before OnDuration of the DRX.
  • the content of multiple power saving signals received by the UE may be different, or due to UE decoding errors, the information obtained by the UE from analyzing multiple power saving signals is different. At this time, how the UE should deal with, the standard has not yet given corresponding regulations.
  • the embodiments of the present application provide a signal transmission method and device, which are used to perform corresponding processing according to multiple power-saving signals with different contents, which can reduce the data transmission delay.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives Y first signals before a first time interval, where Y is an integer greater than or equal to 1; if at least one of the Y first signals is A first signal instructs the terminal device to monitor the PDCCH in the first time interval, and the terminal device monitors the PDCCH in the first time interval.
  • the network device for example, the base station
  • the first signal instructs the terminal device to monitor the PDCCH in the first time interval
  • the sudden deterioration of channel quality causes the UE to receive the wrong power saving signal, or the UE decodes the error, causing the UE to not monitor the PDCCH in the first time interval according to the wrong power saving signal
  • the data sent by the base station to the terminal device is currently The DRX cycle will fail to transmit, and it can only be transmitted in the subsequent DRX cycle, which will increase the transmission delay.
  • the terminal device In order to avoid this situation, you can define the error-handling behavior of the terminal device, that is, as long as there is a power saving signal indicating that the PDCCH is monitored in the first time interval, the terminal device will monitor the PDCCH, which may sacrifice the terminal Part of the power consumption of the device, but can reduce the probability of data transmission failure (that is, avoid data transmission failure), thereby reducing transmission delay.
  • the method further includes: if at least one of the Y first signals indicates that the PDCCH is monitored in the target serving cell or the target serving cell group, the terminal device is in the target serving cell or the target serving cell group.
  • the target serving cell group monitors the PDCCH to ensure that the terminal equipment receives all the PDCCHs sent by the base station to the terminal equipment.
  • the target serving cell group includes multiple serving cells.
  • the target serving cell is any one of the configured secondary cells, or the target serving cell is one or more of the activated secondary cells; the target serving The multiple serving cells included in the cell group are multiple secondary cells in the configured secondary cells, or the multiple serving cells included in the target serving cell group are multiple secondary cells in the activated secondary cells.
  • the method further includes: if the Y first signals indicate at least one piece of first information, the terminal device determines that the first information with the smallest value among the at least one piece of first information is valid; and/ Or, if the Y first signals indicate at least one piece of second information, the terminal device determines that the second piece of information with the smallest value among the at least one piece of second information is valid; in this way, it is possible to ensure that the terminal device can correctly receive the data sent by the base station. .
  • the first information is used to indicate the minimum available value of the time interval between the PDCCH and the physical downlink shared channel (PDSCH) corresponding to the PDCCH
  • the second information is used to indicate the PDCCH and the corresponding PDCCH
  • that the terminal device receives Y first signals before the first time interval includes: the terminal device receives the Y first signals in a first bandwidth part (BWP) before the first time interval The first signal; if at least two first signals in the Y first signals respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP, the terminal device uses the first BWP as the active BWP; where the second BWP is different from the third BWP. Since the terminal device cannot determine which BWP index of the multiple received BWP indexes is correct, the terminal device may not switch the BWP, that is, it still resides in the currently activated BWP. After the BWP timer (timer) expires, the terminal device can The default BWP is aligned with the base station, which can save alignment time.
  • BWP timer timer
  • the method further includes: if at least one of the Y first signals includes trigger information, the trigger information included in each of the at least one first signal is used for When indicating the location information of one or more aperiodic channel state information reference signals (aperiodic channel state information reference signal, A-CSI-RS), the terminal device according to the one or more information indicated by the trigger signal included in each first signal The location information of one A-CSI-RS receives the one or more A-CSI-RS.
  • aperiodic channel state information reference signals aperiodic channel state information reference signal, A-CSI-RS
  • the terminal device can measure all A-CSI-RS according to all the received trigger information (it can be considered that "measurement” includes both receiving A-CSI-RS and processing A-CSI-RS), and corresponding feedback , To prevent the terminal equipment from missing the corresponding A-CSI-RS, and thus unable to carry out the corresponding feedback.
  • the method further includes: if the Y first signals indicate at least one piece of third information, the terminal device determines that the third piece of information with the largest value among the at least one piece of third information is valid; wherein, The third information is used to indicate the maximum number of multiple input multiple output (MIMO) layers (that is, the Max MIMO layer value).
  • MIMO multiple input multiple output
  • the Max MIMO layer value is related to the number of antennas used by the terminal device.
  • the terminal device needs to use N or more antennas to transmit or receive data to ensure correct data transmission. Therefore, in order to ensure correct data transmission, the terminal device may consider the largest Max MIMO layer value among the received multiple Max MIMO layer values as valid, that is, determine the number of antennas to be used according to the largest Max MIMO layer value.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives Y first signals before a first time interval, where Y is an integer greater than or equal to 1; if at least one of the Y first signals is A first signal indicates that the PDCCH is monitored in the target serving cell or the target serving cell group, and the terminal device monitors the PDCCH in the target serving cell or the target serving cell group; wherein the target serving cell group includes multiple serving cells.
  • the target serving cell is any one of the configured secondary cells, or the target serving cell is one or more of the activated secondary cells; the target serving The multiple serving cells included in the cell group are multiple secondary cells in the configured secondary cells, or the multiple serving cells included in the target serving cell group are multiple secondary cells in the activated secondary cells.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives Y first signals before a first time interval, where Y is an integer greater than or equal to 1; if the Y first signals indicate at least one First information, the terminal device determines that the first information with the smallest value in the at least one first information is valid; and/or, if the Y first signals indicate at least one second information, the terminal device determines the at least one first information The second information with the smallest value in the second information is valid; where the first information is used to indicate the smallest available value of the time interval between the PDCCH and the PDSCH corresponding to the PDCCH, and the second information is used to indicate that the PDCCH corresponds to the PDCCH The smallest available value of the time interval between PUSCH.
  • an embodiment of the present application provides a signal transmission method, including: during the active period of DRX, if a terminal device receives at least two pieces of first information in a time slot, the terminal device determines the at least two pieces of first information The first information with the smallest value in a piece of information is valid; and/or, if the terminal device receives at least two pieces of second information in a time slot, the terminal device determines the at least two pieces of second information with the smallest value The second information is valid; where the first information is used to indicate the minimum available value of the time interval between the PDCCH and the PDSCH corresponding to the PDCCH, and the second information is used to indicate the time interval between the PDCCH and the PUSCH corresponding to the PDCCH The smallest value available.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives Y first signals in a first BWP before a first time interval, where Y is an integer greater than or equal to 1; if the Y first signals are At least two first signals in the signal respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP, and the terminal device uses the first BWP as the activated BWP; wherein, the second BWP and the The third BWP is different.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives Y first signals before a first time interval, where Y is an integer greater than or equal to 1; if at least one of the Y first signals is One first signal includes trigger information, and the trigger information included in each first signal of the at least one first signal is used to indicate the location information of one or more A-CSI-RSs, and the terminal device according to each first signal The position information of the one or more A-CSI-RSs indicated by the trigger signal is included to receive the one or more A-CSI-RSs.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives Y first signals before a first time interval, where Y is an integer greater than or equal to 1; if at least one of the Y first signals is A first signal indicates at least one piece of third information, and the terminal device determines that the third information with the largest value in the at least one piece of third information is valid; wherein, the third information is used to indicate the maximum number of multiple-input multiple-output MIMO layers.
  • an embodiment of the present application provides a signal transmission method, including: a terminal device receives a second signal, the second signal is used to instruct to monitor at least one secondary cell of the PDCCH; the terminal device monitors the PDCCH in the primary cell, and according to The second signal monitors the PDCCH in the at least one secondary cell.
  • the terminal device can monitor the PDCCH in the primary cell, and monitor the PDCCH in at least one secondary cell according to the second signal.
  • the second signal can only indicate that the PDCCH is monitored in at least one secondary cell, without indicating whether it needs to be monitored in the secondary cell.
  • the primary cell monitors the PDCCH, which can save bit consumption.
  • the second signal does not indicate that the PDCCH is monitored in the primary cell.
  • the second signal is a power saving signal.
  • the at least one secondary cell is one or more secondary cells among the configured secondary cells, or the at least one secondary cell is one or more secondary cells among the activated secondary cells .
  • an embodiment of the present application provides a signal monitoring method, including: a terminal device receives configuration information from a network device, and the configuration information is used to configure monitoring resources of the first signal for all BWPs configured by the terminal device; the terminal The device monitors the first signal on the activated BWP according to the configuration information, and the activated BWP is one of all BWPs configured by the terminal device.
  • all BWPs configured by the network device for the terminal device are configured to need to monitor the power consumption saving signal, so as to avoid the problem of inability to save energy on a certain BWP.
  • the terminal device receiving the configuration information from the network device includes: the terminal device respectively receiving multiple pieces of configuration information used to configure the monitoring resource of the first signal for each BWP in the all BWPs; or , The terminal device receives a piece of configuration information used to configure the monitoring resource of the first signal for all BWPs. That is to say, the configuration information used to configure the monitoring resources of the power saving signals on all BWPs may be delivered to the terminal devices together or separately, which is not limited in this application.
  • an embodiment of the present application provides a signal transmission method, including: a network device sends Y first signals before a first time interval, where Y is an integer greater than or equal to 1; wherein, in the Y first signals At least one first signal instructs the terminal device to monitor the PDCCH in the first time interval.
  • the target serving cell group includes multiple serving cells.
  • the target serving cell is any one of the configured secondary cells, or the target serving cell is one or more of the activated secondary cells; the target serving cell group includes multiple services The cells are multiple secondary cells in the configured secondary cells, or the multiple serving cells included in the target serving cell group are multiple secondary cells in the activated secondary cells.
  • the Y first signals indicate at least one piece of first information; and/or, the Y first signals indicate at least one piece of second information; wherein, the first information is used to indicate the PDCCH and the PDSCH corresponding to the PDCCH The minimum available value of the time interval between, and the second information is used to indicate the minimum available value of the time interval between the PDCCH and the PUSCH corresponding to the PDCCH.
  • At least two first signals in the Y first signals respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP.
  • At least one first signal in the Y first signals includes trigger information, and the trigger information included in each first signal in the at least one first signal is used to indicate one or more A-CSI-RS Location information.
  • the Y first signals indicate at least one piece of third information; wherein, the third information is used to indicate the maximum number of multiple-input multiple-output MIMO layers.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive Y first signals before a first time interval, where Y is an integer greater than or equal to 1, and a processing unit, configured to: At least one first signal in the Y first signals instructs the terminal device to monitor the PDCCH in the first time interval, and monitor the PDCCH in the first time interval.
  • the processing unit is further configured to: if at least one of the Y first signals indicates that the PDCCH is monitored in the target serving cell or the target serving cell group, the PDCCH is monitored in the target serving cell or the target serving cell group.
  • the serving cell group monitors the PDCCH; wherein, the target serving cell group includes multiple serving cells.
  • the target serving cell is any one of the configured secondary cells, or the target serving cell is one or more of the activated secondary cells; the target serving cell
  • the multiple serving cells included in the group are multiple secondary cells in the configured secondary cells, or the multiple serving cells included in the target serving cell group are multiple secondary cells in the activated secondary cells.
  • the processing unit is further configured to: if the Y first signals indicate at least one piece of first information, determine that the first information with the smallest value among the at least one piece of first information is valid; and/or, If the Y first signals indicate at least one piece of second information, it is determined that the second piece of information with the smallest value in the at least one piece of second information is valid; wherein, the first piece of information is used to indicate the difference between the PDCCH and the PDSCH corresponding to the PDCCH The minimum available value of the time interval, and the second information is used to indicate the minimum available value of the time interval between the PDCCH and the PUSCH corresponding to the PDCCH.
  • the receiving unit is configured to: receive the Y first signals at the first BWP before the first time interval; the processing unit is also configured to, if at least two of the Y first signals The first signals respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP, and use the first BWP as the activated BWP; wherein, the second BWP is different from the third BWP.
  • the receiving unit is further configured to: if at least one of the Y first signals includes trigger information, each of the at least one first signals includes trigger information Used to indicate the position information of one or more aperiodic channel state information reference signals A-CSI-RS, and receive according to the position information of one or more A-CSI-RS indicated by the trigger signal included in each first signal The one or more A-CSI-RS.
  • the processing unit is further configured to: if the Y first signals indicate at least one piece of third information, determine that the third piece of information with the largest value among the at least one piece of third information is valid; The three pieces of information are used to indicate the maximum number of multiple-input multiple-output MIMO layers.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive Y first signals before the first time interval, where Y is an integer greater than or equal to 1, and a processing unit, configured to: At least one of the Y first signals indicates that the PDCCH is monitored in the target serving cell or the target serving cell group, and the PDCCH is monitored in the target serving cell or the target serving cell group; wherein the target serving cell group includes multiple services Community.
  • the target serving cell is any one of the configured secondary cells, or the target serving cell is one or more of the activated secondary cells; the target serving The multiple serving cells included in the cell group are multiple secondary cells in the configured secondary cells, or the multiple serving cells included in the target serving cell group are multiple secondary cells in the activated secondary cells.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive Y first signals before the first time interval, where Y is an integer greater than or equal to 1, and a processing unit, configured to:
  • the Y first signals indicate at least one piece of first information, and the first information with the smallest value among the at least one piece of first information is determined to be valid; and/or, if the Y first signals indicate at least one piece of second information, it is determined that the at least one piece of second information
  • the second information with the smallest value in a piece of second information is valid; where the first information is used to indicate the smallest available value of the time interval between the PDCCH and the PDSCH corresponding to the PDCCH, and the second information is used to indicate the PDCCH and the PDSCH.
  • an embodiment of the present application provides a terminal device, including: a processing unit, configured to determine that at least two pieces of first information are received in one time slot by the receiving unit during the active period of DRX The first information with the smallest value among the two pieces of first information is valid; and/or, if at least two pieces of second information are received in one time slot by the receiving unit, it is determined that the at least two pieces of second information have the smallest value The second information is valid; where the first information is used to indicate the minimum available value of the time interval between the PDCCH and the PDSCH corresponding to the PDCCH, and the second information is used to indicate the time interval between the PDCCH and the PUSCH corresponding to the PDCCH The smallest value available.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive Y first signals in a first BWP before a first time interval, where Y is an integer greater than or equal to 1; a processing unit, If at least two first signals in the Y first signals respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP, use the first BWP as the activated BWP; wherein, the The second BWP is different from the third BWP.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive Y first signals before the first time interval, where Y is an integer greater than or equal to 1, and a processing unit, configured to: At least one first signal in the Y first signals includes trigger information, and the trigger information included in each first signal in the at least one first signal is used to indicate the location information of one or more A-CSI-RSs, according to The location information of the one or more A-CSI-RSs indicated by the trigger signal included in each first signal receives the one or more A-CSI-RSs.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive Y first signals before the first time interval, where Y is an integer greater than or equal to 1, and a processing unit, configured to: At least one of the Y first signals indicates at least one piece of third information, and it is determined that the third piece of information with the largest value in the at least one piece of third information is valid; wherein, the third piece of information is used to indicate the maximum multiple input multiple output The number of MIMO layers.
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive a second signal, where the second signal is used to indicate at least one secondary cell for monitoring the PDCCH; and a processing unit, configured to be in the primary cell Monitoring the PDCCH, and monitoring the PDCCH in the at least one secondary cell according to the second signal.
  • the terminal device can monitor the PDCCH in the primary cell, and monitor the PDCCH in at least one secondary cell according to the second signal.
  • the second signal can only indicate that the PDCCH is monitored in at least one secondary cell, without indicating whether it needs to be monitored in the secondary cell.
  • the primary cell monitors the PDCCH, which can save bit consumption.
  • the second signal does not indicate that the PDCCH is monitored in the primary cell.
  • the second signal is a power saving signal.
  • the at least one secondary cell is one or more secondary cells among the configured secondary cells, or the at least one secondary cell is one or more secondary cells among the activated secondary cells .
  • an embodiment of the present application provides a terminal device, including: a receiving unit, configured to receive configuration information from a network device, and the configuration information is used to configure monitoring resources of the first signal for all BWPs configured by the terminal device.
  • the processing unit is configured to monitor the first signal on the activated BWP according to the configuration information, and the activated BWP is one of all BWPs configured by the terminal device.
  • all BWPs configured by the network device for the terminal device are configured to need to monitor the power consumption saving signal, so as to avoid the problem of inability to save energy on a certain BWP.
  • the receiving unit is configured to: respectively receive a plurality of configuration information used to configure the monitoring resource of the first signal for each BWP in the all BWPs; or, receive configuration information used to configure the monitoring resources for the all BWPs.
  • an embodiment of the present application provides a network device, including: a sending unit, configured to send Y first signals before the first time interval, where Y is an integer greater than or equal to 1, where the Y first signals At least one first signal in the signals instructs the terminal device to monitor the PDCCH in the first time interval;
  • the target serving cell group includes multiple serving cells;
  • the target serving cell is Any one of the configured secondary cells, or the target serving cell is one or more of the activated secondary cells;
  • the multiple serving cells included in the target serving cell group are configured secondary cells Multiple secondary cells in the target serving cell group, or multiple serving cells included in the target serving cell group are multiple secondary cells in the activated secondary cells;
  • the Y first signals indicate at least one piece of first information; and/or, the Y first signals indicate at least one piece of second information; wherein, the first information is used to indicate the PDCCH and the PDSCH corresponding to the PDCCH The minimum available value of the time interval between, and the second information is used to indicate the minimum available value of the time interval between the PDCCH and the PUSCH corresponding to the PDCCH;
  • At least two first signals in the Y first signals respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP;
  • At least one first signal in the Y first signals includes trigger information, and the trigger information included in each first signal in the at least one first signal is used to indicate one or more aperiodic channel states Location information of the information reference signal A-CSI-RS;
  • the Y first signals indicate at least one piece of third information; wherein, the third information is used to indicate the maximum number of multiple-input multiple-output MIMO layers.
  • an embodiment of the present application provides a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any one of the methods provided in any of the foregoing aspects.
  • the embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute any of the methods provided in any of the foregoing aspects.
  • an embodiment of the present application provides a chip system, which includes a processor and may also include a memory, configured to implement any one of the methods provided in any of the foregoing aspects.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • an embodiment of the present application also provides a device, which may be a terminal device or a chip.
  • the device includes a processor, which is used to implement any one of the methods provided in the first aspect.
  • the device may also include a memory for storing program instructions and data.
  • the memory may be a memory integrated in the device or an off-chip memory provided outside the device.
  • the memory is coupled with the processor, and the processor can call and execute the program instructions stored in the memory to implement any one of the methods provided in any one of the foregoing aspects.
  • the device may also include a communication interface, which is used for the device to communicate with other devices.
  • an embodiment of the present application provides a system including the terminal device of any one of the eleventh aspect to the nineteenth aspect, and the network device of the twentieth aspect.
  • Fig. 1 is a schematic diagram of a DRX cycle in the prior art
  • FIG. 2 is a schematic diagram of sending a power saving signal in the prior art
  • FIG. 3 is a schematic diagram of a communication system suitable for a signal transmission method according to an embodiment of the application
  • FIG. 4 is a schematic diagram of signal interaction suitable for a signal transmission method according to an embodiment of the application.
  • FIG. 5 is a schematic diagram of a scenario suitable for a signal transmission method provided by an embodiment of this application.
  • FIG. 6 is another schematic diagram of signal interaction suitable for a signal transmission method according to an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of another terminal device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of another network device provided by an embodiment of this application.
  • DRX cycle In 5G NR, DRX cycle is defined. As shown in Figure 1, a DRX cycle includes On Duration and Opportunity for DRX. At the OnDuration starting moment (or DRX Cycle starting moment), the DRX on-duration timer (drx-onDurationTimer, also called onDurationTimer) can be started.
  • the duration of drx-onDurationTimer is the duration of OnDuration, that is, the duration of drx-onDurationTimer includes a period of duration from the beginning of a DRX cycle.
  • the UE can monitor the PDCCH during the OnDuration period, that is, the UE can monitor the PDCCH during the operation period of the drx-onDurationTimer.
  • the UE When the UE receives a newly transmitted PDCCH for scheduling uplink (UL) or downlink (downlink, DL) during the operation period of drx-onDurationTimer (that is, it receives a newly transmitted PDCCH), it can start (or restart) inactive Timer (drx-InactivityTimer). The UE may continue to monitor the PDCCH during the operation of the drx-InactivityTimer until the drx-InactivityTimer expires. Among them, "monitoring" the PDCCH means that the UE performs a blind check on a series of PDCCH candidate positions (candidates) to check whether there is a PDCCH sent to itself.
  • a group (one or more) of PDCCH candidates can form a search space set.
  • the location of time-frequency resources occupied by one or more search space sets is called a control resource set (CORESET).
  • CORESET control resource set
  • different search space sets have different monitoring cycles.
  • Search space set can be divided into common search space set (common search space set) and UE-specific search space set (UE-specific search space set). Different types of search space sets will detect different formats (format).
  • the network side can configure the format of the PDCCH that the UE needs to monitor when configuring the search space set for the UE.
  • Carrier aggregation In the initial stage of LTE standard formulation, the maximum bandwidth of a carrier is specified as 20 MHz. In the subsequent standardization process, LTE has been further improved, which is called LTE-Advanced (LTE-A). In order to meet the requirements of 1Gbps downlink peak speed and 500Mbps uplink peak speed specified in LTE-A, a maximum transmission bandwidth of 100MHz needs to be provided. Due to the scarcity of large-bandwidth continuous spectrum, LTE-A proposes a carrier aggregation solution. Carrier aggregation is to aggregate 2 or more component carriers (CC) to support a larger transmission bandwidth (maximum 100MHz). Each CC can correspond to an independent cell (cell), or it can be said that one CC is equivalent to one cell. The maximum bandwidth of each CC can be 20MHz.
  • CC component carriers
  • a UE can be configured with up to 5 CCs, one of which corresponds to a primary cell (primary cell, PCell), and the remaining CCs correspond to a secondary cell (secondary cell, SCell).
  • the PCell is responsible for radio resource control (radio resource control, RRC) communication with the UE, and the physical uplink control channel (physical uplink control channel, PUCCH) can only be sent on the PCell.
  • RRC radio resource control
  • PUCCH physical uplink control channel
  • the Pcell may be a cell where the UE performs initial connection establishment, or a cell where RRC connection reestablishment is performed, or a cell designated during a handover (handover) process.
  • the SCell is a cell added during RRC reconfiguration and is used to provide additional radio resources.
  • enhanced CA enhanced CA
  • eCA enhanced CA
  • the base station has a large bandwidth and the UE has insufficient capabilities to support such a large bandwidth through a single carrier
  • intraband continuous CA intraband contiguous CA
  • the UE can regard the bandwidth of the base station as an aggregation of four 100MHz bandwidths, and communicate with the base station by way of CA.
  • each CC can follow the same length of the DRX cycle, active period, and sleep period, that is, the UE wakes up and sleeps at the same time on each CC.
  • different CCs can be configured with different DRX cycles, that is, the DRX cycles of different CCs can be different.
  • BWP In 5G NR, a part of the bandwidth (BWP) between the network equipment and the UE is supported for transmission. This is due to the 5G system bandwidth (system bandwidth can refer to the bandwidth of a carrier, corresponding to the CA or DC scenario, each CC The bandwidth) can be 200MHz or 400MHz. Some UEs cannot support such a large bandwidth. Therefore, the network device can configure the BWP (part of the system bandwidth) for the UE, such as 20MHz, and the UE can communicate with the network device on 20MHz.
  • system bandwidth can refer to the bandwidth of a carrier, corresponding to the CA or DC scenario, each CC The bandwidth
  • the network device can configure the BWP (part of the system bandwidth) for the UE, such as 20MHz, and the UE can communicate with the network device on 20MHz.
  • BWP can be supported.
  • BWP can be divided into downlink BWP (Downlink BWP, DL BWP) and uplink BWP (Uplink BWP, UL BWP).
  • the network device can configure multiple DL BWPs and multiple UL BWPs for the UE, and activate one DL BWP and activate one UL BWP.
  • the UE receives the downlink signal sent by the base station on the activated DL BWP (ie active DL BWP), including but not limited to receiving downlink control signaling and downlink data, etc.; the UE sends on the activated UL BWP (ie active UL BWP) Uplink signals, including, but not limited to, sending uplink control signaling, uplink data, scheduling request (scheduling request, SR), uplink sounding reference signal (sounding reference signal, SRS), channel state information (CSI), and channel Quality indicator (ChannelQuality Indicator, CQI) and so on.
  • uplink control signaling uplink data
  • scheduling request scheduling request
  • uplink sounding reference signal sounding reference signal
  • SRS channel state information
  • CSI channel Quality indicator
  • CQI Channel Quality indicator
  • the base station When the base station communicates with the UE on an activated BWP (DL BWP or UL BWP), the base station can activate another BWP, so that the UE switches to the newly activated BWP to receive or send data.
  • the method for the UE to switch to activate the BWP may include: 1) the base station sends a PDCCH to the UE to instruct the UE to switch the BWP; 2) the base station sends RRC signaling to the UE to instruct the UE to switch the BWP; 3) both the base station and the UE maintain a timing When the timer expires, the UE switches from a non-default BWP to a default BWP (default BWP).
  • the multiple BWPs configured by the UE can follow the same DRX cycle, and the length of the active period and the sleep period, that is, the UE wakes up and sleeps at the same time on each BWP. Or, different BWPs can be configured with different DRX cycles.
  • the time interval between the PDCCH used to carry scheduling information and the PDSCH corresponding to the PDCCH used to carry downlink data is dynamically indicated by the base station, the PDCCH and the corresponding PDSCH
  • the time interval between can be represented by a K0 value (in a time slot as a unit), and the K0 value can correspond to a value set, which is configured by the base station through RRC signaling.
  • the UE when scheduling across time slots, the UE can avoid buffering some useless data, so energy saving can be achieved.
  • the UE knows that the indicated K0 values are all greater than 0, the UE must be scheduled across time slots. If the value set of the K0 value of the UE contains 0, then the UE may be scheduled at the same time slot. At this time, the UE cannot achieve the purpose of energy saving.
  • the base station can indicate the scheduling mode of the UE through the K0/K2 value.
  • the base station can also indicate the minimum K0/K2 value to the UE to limit the indication range of the K0/K2 value indicated by the base station to the UE.
  • the minimum K0/K2 value can be selected from the value set of K0/K2 values.
  • the value set of the K0 value configured by the base station to the UE through RRC signaling is ⁇ 0,1,2,3 ⁇ , that is, in one scheduling, the base station can indicate to the UE that the K0 value is ⁇ 0,1,2,3 ⁇ Any one of them.
  • the base station indicates to the UE that the minimum K0 value is 1, and then the base station can indicate to the UE that the K0 value is any one of ⁇ 1,2,3 ⁇ , but cannot indicate that the K0 value is 0 to the UE.
  • the UE can know in advance that the indicated K0 values are all greater than 0, and the UE must be scheduled across time slots. At this time, the UE can avoid buffering some useless data, so the purpose of energy saving can be achieved.
  • Power saving signal that is, power saving signal, which can also be called power saving signal, or can be called wakeup signal (wake up signal, WUS), which is collectively referred to as power saving signal hereinafter.
  • the network device may send a power consumption saving signal to the terminal device, indicating that the terminal device is in a sleep state during one or more DRX cycles, that is, the PDCCH is not monitored in one or more DRX cycles, so as to save the power consumption of the terminal device.
  • the network device may also send a power consumption saving signal to the terminal device to wake up the terminal device in a sleep state, that is, instruct the terminal device to monitor the PDCCH in one or more DRX cycles.
  • the power saving signal may also be used to indicate one or more of the following information:
  • the power saving signal is only sent on one CC, but it can indicate the behavior of the UE on multiple CCs. For example, the power saving signal may further indicate which CCs need to monitor the PDCCH, which is equivalent to a more fine-grained indication.
  • the power saving signal can indicate the minimum K0/K2 value.
  • the power saving signal can indicate the index of the BWP to be switched. After the UE enters OnDuration, it can work on the indicated BWP.
  • the power saving signal can indicate the maximum number of MIMO layers (uplink or downlink). After the UE enters OnDuration, it can work according to the number of antennas corresponding to the maximum number of MIMO layers.
  • the power saving signal can trigger CSI measurement, and the UE can receive the channel state information reference signal (CSI-RS) according to the power saving signal, and report the CSI feedback information.
  • CSI-RS channel state information reference signal
  • the power saving signal may be repeatedly sent multiple times.
  • the content of multiple power saving signals received by the UE may be different, or due to UE decoding errors, the information obtained by the UE from analyzing multiple power saving signals is different.
  • the standard has not yet given corresponding regulations.
  • the embodiment of the present application provides a signal transmission method. If the terminal device receives Y first signals (power saving signals) before the first time interval, at least one first signal indicates to the terminal device The PDCCH is monitored in the first time interval, and the terminal device monitors the PDCCH in the first time interval. This can reduce the delay. This is because if the base station wants the UE to monitor the PDCCH, but the channel quality suddenly deteriorates and the UE receives the wrong first signal, the UE does not monitor the PDCCH according to the wrong first signal, and the base station sends the signal to the UE. The data will fail to be transmitted in the current DRX cycle, and can only be transmitted in the subsequent DRX cycle, causing the data transmission delay to increase. In order to avoid this situation, part of the power consumption of the UE can be sacrificed to allow the UE to monitor the PDCCH as much as possible to reduce the probability of data transmission failure, thereby reducing the transmission delay.
  • the embodiments of the present application can be applied to various wireless communication systems such as LTE systems, 5G NR systems, and next-generation wireless local area network systems.
  • the communication system may include a network device 100 (for example, a base station) and one or more terminal devices connected to the network device 100 200 (only one is shown in Figure 3).
  • the terminal device may receive the Y first signals sent by the network device before the first time interval. If at least one of the Y first signals instructs the terminal device to monitor the PDCCH in the first time interval, the terminal device is in the first time interval. PDCCH is monitored during the time interval.
  • an embodiment of the present application provides a signal transmission method, taking the first signal as a power saving signal as an example for description, including:
  • the network device sends Y power consumption saving signals before the first time interval, where Y is an integer greater than or equal to 1.
  • the terminal device receives Y power consumption saving signals before the first time interval, where Y is an integer greater than or equal to 1.
  • the first time interval may include one or more DRX cycles, or the first time interval may include one or more On Duration.
  • the power saving signal can instruct the terminal device not to monitor the PDCCH in the next 3 DRX cycles (that is, in a sleep state), and the next 3 DRX cycles are the 3 DRXs that arrive after the network device sends the power saving signal. cycle.
  • the power saving signal may instruct the terminal device not to monitor the PDCCH in the next 2 OnDuration.
  • the time interval can also be called time offset or offset.
  • the time interval between each occurrence and the first time interval can be used by the UE to process power saving signals (such as analyzing power saving signals), time-frequency synchronization, channel state information (CSI) measurement, and beam Processing operations such as beam management.
  • the time interval between the first occurrence and the start time of the first time interval may be 3 ms (that is, the first occurrence is located 3 ms before the start time of the first time interval);
  • the second occurrence may be located 2ms before the start time of the first time interval;
  • the third occurrence may be located 1ms before the start time of the first time interval.
  • the network device can send power saving signals in each of the above X occurrences, but due to poor channel quality, the UE may only receive Y (1 ⁇ Y ⁇ X) power saving signals or not receive power saving signals (That is, 0 power saving signals are received).
  • the network device may send the power consumption saving signal in Y of the above X occurrences, and the UE may receive Y (1 ⁇ Y ⁇ X) power consumption saving signals.
  • the content of the power saving signal sent by the network equipment in each of the above X occasions can be the same or different. When the same, it is equivalent to repeating the power saving signal. When different, it may be a network device (for example, a base station). ) Temporarily changed the scheduling strategy and hope to change the instruction content.
  • the terminal device monitors the PDCCH in the first time interval.
  • one of the power saving signals instructs the terminal device to monitor the PDCCH in the first time interval
  • the other power saving signal instructs the terminal device not to monitor the PDCCH in the first time interval
  • the terminal device is still in the first time interval.
  • PDCCH is monitored during the time interval. Only when all the Y (for example, 2) power consumption saving signals received by the UE indicate that the UE does not monitor the PDCCH in the first time interval, the UE may not monitor the PDCCH in the first time interval.
  • the base station originally wanted the UE to monitor the PDCCH in the first time interval, that is, the power saving signal instructs the terminal device to monitor the PDCCH in the first time interval, but the sudden deterioration of the channel quality causes the UE to receive the wrong power saving
  • the signal or UE decoding error causes the UE to not monitor the PDCCH in the first time interval according to the wrong power saving signal, then the data sent by the base station to the terminal device will fail to be transmitted in the current DRX cycle, and can only be transmitted in the subsequent DRX cycle Transmission, which will increase the transmission delay.
  • the terminal device In order to avoid this situation, you can define the error handling behavior of the terminal device, that is, as long as there is a power saving signal indicating that the PDCCH is monitored in the first time interval, the terminal device will monitor the PDCCH, which may sacrifice part of the power consumption of the terminal device. , But it can reduce the probability of data transmission failure (that is, avoid data transmission failure), thereby reducing transmission delay.
  • the terminal device may also monitor the PDCCH in the first time interval.
  • the terminal device monitors the PDCCH in the target serving cell or target serving cell group, To ensure that the terminal equipment receives all the PDCCHs sent by the base station to the terminal equipment.
  • the target serving cell may be any secondary cell among the configured secondary cells, or the target serving cell may be one or more secondary cells among the activated secondary cells.
  • the target serving cell group may include multiple serving cells, the multiple serving cells may be multiple secondary cells in the configured secondary cells, or the multiple serving cells may be multiple secondary cells in the activated secondary cells .
  • 5 bits may be used in the power saving signal to respectively indicate whether cell 1 to cell 5 need to monitor the PDCCH in the first time interval. 1 can indicate that monitoring is required, and 0 can indicate that monitoring is not required. If the terminal device receives two power saving signals indicating 11000 and 10010, respectively, the terminal device can monitor the PDCCH on cell 1, cell 2, and cell 4 in the first time interval.
  • three bits may be used in the power saving signal to respectively indicate whether the cell group 1 to the cell group 3 need to monitor the PDCCH in the first time interval. 1 can indicate that monitoring is required, and 0 can indicate that monitoring is not required. If the terminal device receives two power saving signals indicating 100 and 001 respectively, the terminal device can monitor the PDCCH on all cells in cell group 1 and all cells in cell group 3 in the first time interval.
  • the terminal device determines that the first information with the smallest value among the at least one piece of first information is valid; and/or if the Y power saving signals
  • the signal indicates at least one piece of second information, and the terminal device determines that the second piece of information with the smallest value among the at least one piece of second information is valid.
  • the first information is used to indicate the minimum available value of the time interval between the PDCCH and the PDSCH corresponding to the PDCCH.
  • the first information may be the minimum K0 value.
  • the second information is used to indicate the minimum available value of the time interval between the PDCCH and the PUSCH corresponding to the PDCCH.
  • the second information may be the minimum K2 value.
  • the base station can schedule the terminal equipment in the manner of simultaneous slot scheduling, but the terminal equipment receives an error due to the sudden deterioration of the channel quality.
  • the power saving signal or UE decoding error, causes the terminal device to obtain the minimum K0/K2 value greater than 0 according to the wrong power saving signal, so the terminal device thinks that it is scheduled across time slots, and the terminal device cannot receive the base station correctly Data sent in simultaneous slot scheduling.
  • the terminal device can set multiple minimum K0/K2 values The smallest one is considered valid. In this way, if the base station wants to schedule the terminal equipment by means of simultaneous slot scheduling, the terminal equipment can correctly receive the data sent by the base station. Even if the base station wants to schedule the terminal equipment by means of cross-slot scheduling, the terminal equipment thinks it is scheduled by the simultaneous slot , The terminal device may need to buffer some useless data, but it can still correctly receive the data sent by the base station.
  • the terminal device determines that the first information with the smallest value among the at least two first pieces of information is valid; and/or, if the terminal device receives at least two pieces of second information within one time slot (for example, the minimum K2 value) ), the terminal device determines that the second information with the smallest value among the at least two pieces of second information is valid.
  • the first information and the second information may be included in the DCI for scheduling uplink and/or downlink data.
  • the terminal device can regard the smallest one of the multiple minimum K0/K2 values as Effective, that is, according to the smallest minimum K0/K2 value, it is determined whether it is scheduled at the same time slot or across time slots, so as to ensure that the data sent by the base station can be received correctly.
  • the terminal device receives Y power saving signals in the first BWP, at least two power saving signals in the Y power saving signals respectively instruct the terminal device to switch from the first BWP to For the second BWP and the third BWP, the terminal device still regards the first BWP as the activated BWP, that is, does not switch the current BWP. Among them, the second BWP is different from the third BWP.
  • the terminal device may not switch the BWP, that is, it still resides in the currently activated BWP. After the BWP timer (timer) expires, the terminal device can Align with the base station on the default BWP.
  • the terminal device For example, if the base station repeatedly sends two power saving signals indicating BWP index 2 to the terminal device, it is hoped to switch the terminal device to the BWP corresponding to BWP index 2, but due to the deterioration of channel quality, the terminal device
  • the two received BWP indexes are BWP index 2 and BWP index 3. If the currently activated BWP is BWP1, the duration of the BWP timer is 200ms. When the terminal device receives the second power saving signal, it is assumed that the BWP timer has run to 120ms.
  • the BWP timer will restart, so that the terminal device can be aligned with the base station after 200ms, and if the terminal device keeps the currently activated BWP unchanged, after 80ms no scheduling time ( That is, after it is not scheduled again within the 80ms), the terminal device can switch to the default BWP and can be aligned with the base station, thereby saving alignment time.
  • the terminal device can monitor the power saving signal on the activated BWP (first BWP) according to the configuration information.
  • the configuration information is used to configure the monitoring resources of the power saving signal for all BWPs configured by the terminal device (power saving
  • the signal monitoring resource is the resource used to monitor the power consumption and save the signal).
  • the currently activated BWP is one of all BWPs configured by the terminal device. In this way, it is possible to prevent the base station from missing the monitoring resources of the power consumption saving signal on a certain BWP, thereby avoiding the problem of incapability of energy saving on the BWP when the active BWP is switched to the BWP.
  • the network device configures two BWPs for the terminal device, namely BWP 1 and BWP 2, only the BWP 1 is configured with the power saving signal that needs to be monitored, and the BWP 2 is not configured with the power saving signal that needs to be monitored.
  • the active BWP of the terminal device is switched to BWP 2, the power saving signal cannot be monitored, and energy saving cannot be performed.
  • all BWPs configured by the network device for the terminal device are configured to need to monitor the power consumption saving signal, so as to avoid the problem of inability to save energy on a certain BWP.
  • the terminal device can respectively receive multiple configuration information used to configure the monitoring resources of the power saving signal for each BWP in all BWPs; for example, assuming that all BWPs configured by the terminal device include BWP1-BWP3, the network device can Configure power-saving signal monitoring resources for BWP1 in configuration information 1, configure power-saving signal monitoring resources for BWP2 in configuration information 2, configure power-saving signal monitoring resources for BWP3 in configuration information, configuration information 1. Configuration information 2 and configuration information 3 can be sent in three times.
  • the terminal device receives a piece of configuration information used to configure the monitoring resource of the power saving signal for all BWPs, and the configuration information may configure the monitoring resource of the power saving signal for all BWPs. That is to say, the configuration information used to configure the monitoring resources of the power saving signals on all BWPs may be delivered to the terminal devices together or separately, which is not limited in this application.
  • the terminal device may receive or send a reference signal (reference signal, RS) in addition to sending and receiving data, and perform corresponding processing according to the RS.
  • RS reference signal
  • the terminal device can receive the A-CSI-RS sent by the network device, and then use the A-CSI-RS to measure the channel state, and can feed back the measurement result to the network device, so that the network device can better perform data scheduling, such as Adjust the modulation and coding scheme (MCS), determine the MIMO precoding matrix, etc.
  • MCS modulation and coding scheme
  • the terminal device When the terminal device receives the A-CSI-RS sent by the network device, it needs to know the location information of the A-CSI-RS, and the network device can indicate the location information of the A-CSI-RS through the power saving signal.
  • the power saving signal may include trigger information, which is used to indicate the position information of one or more A-CSI-RS (the position information of each A-CSI-RS may be relative to each A-CSI-RS).
  • the offset in On Duration means that the offset can be pre-configured).
  • the terminal device may according to one or more A-CSI indicated by each trigger signal -RS position information receives one or more A-CSI-RS, so as not to miss the corresponding A-CSI-RS. Then, the terminal device can generate channel feedback based on one or more A-CSI-RS, and send the generated feedback to the network and the device.
  • trigger information for example, trigger state
  • the terminal device can measure all A-CSI-RS according to all the received trigger information (it can be considered that "measurement” includes both receiving A-CSI-RS and processing A-CSI-RS), and corresponding feedback , To prevent the terminal equipment from missing the corresponding A-CSI-RS, and thus unable to carry out the corresponding feedback.
  • the terminal device determines at least one piece of third information.
  • the third message with the largest value among the three messages is valid.
  • the third information is used to indicate the maximum number of multiple-input multiple-output MIMO layers (that is, the Max MIMO layer value).
  • the terminal device determines that the Max MIMO layer value with the largest value is valid, that is Make sure that the Max MIMO layer value is 5.
  • the Max MIMO layer value is related to the number of antennas used by the terminal device.
  • the terminal device needs to use N or more antennas to transmit or receive data to ensure correct data transmission. Therefore, in order to ensure correct data transmission, the terminal device may consider the largest Max MIMO layer value among the received multiple Max MIMO layer values as valid, that is, determine the number of antennas to be used according to the largest Max MIMO layer value.
  • the signal transmission method provided by the embodiment of the present application will be introduced.
  • the network device 100 may send the power saving signal at multiple (for example, three) occasions, and the power saving signal may be used to instruct the mobile phone 200 to monitor the PDCCH in the next On Duration.
  • the network device 100 determines the start time of the next OnDuration (OnDuration of the upcoming DRX cycle) of the mobile phone 200, and determines three monitoring occasions (occasion) earlier than the start time, namely, timing 1, and timing 2. And timing 3.
  • the network device sends the power saving signal at the above three occasions, and the mobile phone 200 receives the power saving signal at the above three occasions. If among the three power saving signals, at least one power saving signal instructs the terminal device to monitor the PDCCH in OnDuration, and the terminal device monitors the PDCCH in OnDuration. This may sacrifice part of the power consumption of the terminal device, but can reduce the probability of data transmission failure (that is, avoid data transmission failure), thereby reducing transmission delay.
  • an embodiment of the present application also provides a signal monitoring method, including:
  • the network device sends a second signal, where the second signal is used to indicate at least one secondary cell for monitoring the PDCCH.
  • the second signal may be a power saving signal or another signal, which is not limited in this application.
  • the terminal device receives a second signal, where the second signal is used to indicate at least one secondary cell that monitors the PDCCH.
  • the at least one secondary cell may be one or more of the secondary cells configured by the terminal device, or the at least one secondary cell may be one or more of the secondary cells that the terminal device has activated.
  • the terminal device monitors the PDCCH in the primary cell, and monitors the PDCCH in at least one secondary cell according to the second signal.
  • the second signal can only indicate that the PDCCH should be monitored in at least one secondary cell, without indicating whether the PDCCH needs to be monitored in the primary cell, so that Save bit consumption.
  • the terminal device is configured with 5 cells, including 1 primary cell and 4 secondary cells, only 4 bits can be used to instruct the terminal device to monitor PDCCH in 4 secondary cells, without indicating the primary cell, which can save bit consumption .
  • the terminal device can monitor the PDCCH in the primary cell, and monitor the PDCCH in at least one secondary cell according to the second signal.
  • the second signal can only indicate that the PDCCH is monitored in at least one secondary cell, without indicating whether it needs to be monitored in the secondary cell.
  • the primary cell monitors the PDCCH, which can save bit consumption.
  • the terminal equipment and the network equipment include hardware structures and/or software modules corresponding to the respective functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device and the network device into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 7 shows a possible schematic structural diagram of the terminal device 7 involved in the above embodiment.
  • the terminal device includes: a receiving unit 701 and a processing unit 702.
  • the receiving unit 701 is configured to receive Y first signals before the first time interval, where Y is an integer greater than or equal to 1
  • the processing unit 702 is configured to receive at least one of the Y first signals
  • a first signal instructs the terminal device to monitor the PDCCH in the first time interval, and monitor the PDCCH in the first time interval.
  • the processing unit 702 is further configured to: if at least one first signal in the Y first signals indicates to monitor the PDCCH in the target serving cell or the target serving cell group, monitor the PDCCH in the target serving cell or the target serving cell group PDCCH; wherein, the target serving cell group includes multiple serving cells.
  • the processing unit 702 is further configured to: if the Y first signals indicate at least one piece of first information, determine that the first information with the smallest value in the at least one piece of first information is valid; and/or, if the Y The first signal indicates at least one piece of second information, and it is determined that the second information with the smallest value in the at least one piece of second information is valid; wherein, the first information is used to indicate the connection between the PDCCH and the PDSCH corresponding to the PDCCH The minimum available value of the time interval, the second information is used to indicate the minimum available value of the time interval between the PDCCH and the PUSCH corresponding to the PDCCH.
  • the receiving unit 701 is configured to: receive the Y first signals in the first BWP before the first time interval; the processing unit 702 is also configured to, if at least two of the Y first signals are Instruct the terminal device to switch from the first BWP to the second BWP and the third BWP respectively, and use the first BWP as the activated BWP; wherein, the second BWP is different from the third BWP.
  • the receiving unit 701 is further configured to: if at least one first signal in the Y first signals includes trigger information, the trigger information included in each first signal in the at least one first signal is used to indicate Position information of one or more aperiodic channel state information reference signals A-CSI-RS, and receive the one or more A-CSI-RS positions according to the position information of one or more A-CSI-RSs indicated by the trigger signal included in each first signal Multiple A-CSI-RS.
  • the processing unit 702 is further configured to: if the Y first signals indicate at least one piece of third information, determine that the third piece of information with the largest value among the at least one piece of third information is valid; wherein, the third piece of information is To indicate the maximum number of multiple-input multiple-output MIMO layers.
  • the receiving unit 701 may be configured to receive a second signal, which is used to indicate at least one secondary cell for monitoring the PDCCH; the processing unit 702 may be used to monitor the PDCCH in the primary cell, and use the second signal in the At least one secondary cell monitors the PDCCH.
  • the receiving unit 701 is configured to support the terminal device to execute the process 402 in FIG. 4 or the process 602 in FIG. 6.
  • the processing unit 702 is configured to support the terminal device to execute the process 403 in FIG. 4 or the process 603 in FIG. 6.
  • the terminal device can be implemented by the structure (device or system) in FIG. 8.
  • FIG. 8 is a schematic diagram of a structure provided by an embodiment of the application.
  • the structure 800 includes at least one processor 801, a communication bus 802, a memory 803, and at least one communication interface 804.
  • the processor 801 may be a CPU, a micro-processing unit, an ASIC, or one or more integrated circuits used to control the execution of the program of the present application.
  • the communication bus 802 may include a path for transferring information between the above-mentioned components.
  • Communication interface 804 which uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 803 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory can exist independently and is connected to the processor through a bus.
  • the memory can also be integrated with the processor.
  • the memory 803 is used to store application program codes for executing the solutions of the present application, and the processor 801 controls the execution.
  • the processor 801 is configured to execute the application program code stored in the memory 803, so as to realize the functions in the method of the present application.
  • the processor 801 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 8.
  • the structure 800 may include multiple processors, such as the processor 801 and the processor 807 in FIG. 8. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the structure 800 may further include an output device 805 and an input device 806.
  • the output device 805 communicates with the processor 801 and can display information in a variety of ways.
  • the output device 805 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • the input device 806 communicates with the processor 801 and can accept user input in a variety of ways.
  • the input device 806 may be a mouse, a keyboard, a touch screen device, a sensor device, or the like.
  • the structure 800 can be a desktop computer, a portable computer, a network server, a handheld computer (personal digital assistant, PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, or the like in Figure 8. Structure of equipment.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of structure 800.
  • FIG. 9 shows a possible structural schematic diagram of the network device 9 involved in the foregoing embodiment, and the network device 9 includes: a sending unit 901.
  • the sending unit 901 is configured to send Y first signals before the first time interval, and Y is an integer greater than or equal to 1; wherein, at least one first signal in the Y first signals indicates The terminal device monitors the PDCCH in the first time interval.
  • At least one of the Y first signals instructs the terminal device to monitor the PDCCH in the target serving cell or target serving cell group; wherein, the target serving cell group includes multiple serving cells.
  • the Y first signals indicate at least one piece of first information; and/or, the Y first signals indicate at least one piece of second information; wherein, the first information is used to indicate the PDCCH and the PDSCH corresponding to the PDCCH The minimum available value of the time interval between, and the second information is used to indicate the minimum available value of the time interval between the PDCCH and the PUSCH corresponding to the PDCCH;
  • At least two first signals in the Y first signals respectively instruct the terminal device to switch from the first BWP to the second BWP and the third BWP;
  • At least one first signal in the Y first signals includes trigger information, and the trigger information included in each first signal in the at least one first signal is used to indicate one or more A-CSI-RS Location information;
  • the Y first signals indicate at least one piece of third information; wherein, the third information is used to indicate the maximum number of multiple-input multiple-output MIMO layers.
  • the sending unit may be used to send a second signal, where the second signal is used to instruct the terminal device to monitor at least one secondary cell of the PDCCH.
  • the sending unit 901 is configured to support the network device to execute the process 401 in FIG. 4 or the process 601 in FIG. 6.
  • the network equipment can be implemented by the base station in FIG. 10.
  • a schematic structural diagram of a base station includes a part 1001 and a part 1002.
  • the base station 1001 part is mainly used for transmitting and receiving radio frequency signals and the conversion between radio frequency signals and baseband signals; the 1002 part is mainly used for baseband processing and controlling the base station.
  • Part 1001 can generally be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the part 1002 is usually the control center of the base station, and may be generally referred to as a processing unit, which is used to control the base station to execute the steps performed by the base station (that is, the serving base station) in FIG. 3 above.
  • a processing unit which is used to control the base station to execute the steps performed by the base station (that is, the serving base station) in FIG. 3 above.
  • the transceiver unit of part 1001 may also be called a transceiver, or a transceiver, etc., which includes an antenna and a radio frequency unit, and the radio frequency unit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in part 1001 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, part 1001 includes the receiving unit and the sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • Part 1002 may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processors are used to read and execute programs in the memories to implement baseband processing functions and control the base station. control. If there are multiple boards, each board can be interconnected to increase processing capacity.
  • multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time.
  • the memory and the processor may be integrated together or independently arranged.
  • the 1001 part and the 1002 part may be integrated together or separately arranged.
  • all the functions in part 1002 can be integrated in one chip, or part of the functions can be integrated in one chip, and part of the functions can be integrated in one or more other chips, which is not limited in this application.
  • the functions described in this application can be implemented by hardware, software, firmware, or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the embodiments of the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present application may adopt the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Abstract

本申请实施例提供一种信号传输方法和装置，涉及通信领域，可以根据多个内容不同的功耗节省信号进行相应处理，能够降低数据传输时延。其方法为：终端设备在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号中的至少一个第一信号指示该终端设备在该第一时间区间内监测PDCCH，该终端设备在该第一时间区间内监测PDCCH。本申请实施例应用于5G NR等无线通信系统。

Description

一种信号传输方法和装置
本申请要求于2019年09月27日提交国家知识产权局、申请号为201910926435.1、申请名称为“一种信号传输方法和装置”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
本申请涉及通信领域，尤其涉及一种信号传输方法和装置。
背景技术
在长期演进(long term evolution，LTE)和第五代(5 th generation，5G)移动通信系统新无线(new radio，NR)中，定义了不(非)连续接收周期(discontinuous reception cycle，DRX cycle)。如图1所示，DRX cycle由“On Duration”和“Opportunity for DRX”组成。其中，On Duration可以称为启动持续时间，Opportunity for DRX可以称为DRX机会。在“On Duration”期间内，用户设备(user equipment，UE)处于激活期，可以监测并接收物理下行控制信道(physical downlink control channel，PDCCH)；在“Opportunity for DRX”期间内，UE处于休眠期，不接收PDCCH以减少功耗。为了进一步实现节省功耗的目的，在NR第16个版本(release 16，Rel-16)的标准化讨论中，提出一种基于功耗节省信号/功率节省信号(power saving signal)的方法：如图2所示，在DRX cycle开始之前(即在OnDuration之前)，网络设备可以向UE发送功耗节省信号，指示UE在一个或多个DRX cycle内进入睡眠状态。当然，也可以通过功耗节省信号唤醒睡眠状态中的UE。
为了保证功耗节省信号的可靠性，可以重复多次发送功耗节省信号(多次发送的功耗节省信号的内部携带的信息相同)，一方面，重复发送可以增强等效接收功率，另一方面，在毫米波的情况下，信号是通过方向性的波束(beam)发送的，重复发送多个beam也可以提高方向性覆盖。UE可以在DRX的OnDuration之前的多个功耗节省信号的监测时机(monitor occasion)监测功耗节省信号。
但是，在传输过程中由于信道状态差等原因，UE接收到的多个功耗节省信号的内容可能是不同的，或者由于UE解码错误，UE对多个功耗节省信号解析得到的信息不同，此时，UE应该如何处理，标准目前还未给出相应规定。
发明内容
本申请实施例提供一种信号传输方法和装置，用于根据多个内容不同的功耗节省信号进行相应处理，可以降低数据传输时延。
第一方面，本申请实施例提供一种信号传输方法，包括：终端设备在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号中的至少一个第一信号指示该终端设备在该第一时间区间内监测PDCCH，该终端设备在该第一时间区间内监测PDCCH。
可以理解的是，若网络设备(例如，基站)本希望UE在第一时间区间内监测PDCCH，即通过第一信号(功耗节省信号)指示终端设备在第一时间区间内监测PDCCH，但由于 信道质量突然变差导致UE接收到错误的功耗节省信号，或者UE解码错误，导致UE根据错误的功耗节省信号在第一时间区间内不监测PDCCH，那么基站发送给终端设备的数据在当前DRX cycle就会传输失败，只能在之后的DRX cycle传输，这样会造成传输时延增大。为了避免这种情况，可以通过定义终端设备的错误处理(error-handling)行为，即只要有一个功耗节省信号指示在第一时间区间内监测PDCCH，终端设备就监测PDCCH，这样可能牺牲了终端设备的部分功耗，但可以降低数据传输失败概率(即避免数据传输失败)，从而降低传输时延。
在一种可能的实现方式中，该方法还包括：若该Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，该终端设备在该目标服务小区或该目标服务小区组监测PDCCH，以保证终端设备接收到基站向终端设备发送的全部PDCCH。其中，该目标服务小区组包括多个服务小区。
在一种可能的实现方式中，该目标服务小区为已配置的辅小区中的任一个辅小区，或者，该目标服务小区为已激活的辅小区中的一个或多个辅小区；该目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，该目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
在一种可能的实现方式中，该方法还包括：若该Y个第一信号指示至少一个第一信息，该终端设备确定该至少一个第一信息中取值最小的第一信息有效；和/或，若该Y个第一信号指示至少一个第二信息，该终端设备确定该至少一个第二信息中取值最小的第二信息有效；这样，可以尽量保证终端设备可以正确接收基站发送的数据。其中，该第一信息用于指示PDCCH和该PDCCH对应的物理下行共享信道(physical downlink shared channel，PDSCH)之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的物理上行共享信道(physical uplink shared channel，PUSCH)之间的时间间隔的最小可用值。
在一种可能的实现方式中，该终端设备在第一时间区间之前接收Y个第一信号包括：该终端设备在第一时间区间之前在第一带宽部分(bandwidth part，BWP)接收该Y个第一信号；若该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP，该终端设备将该第一BWP作为激活的BWP；其中，该第二BWP与该第三BWP不同。由于终端设备无法确定接收到的多个BWP index中哪个BWP index是正确的，终端设备可以不切换BWP，即仍驻留在当前激活的BWP，BWP定时器(timer)超时后，终端设备可以在default BWP上和基站对齐，可以节省对齐时间。
在一种可能的实现方式中，该方法还包括：若该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个非周期信道状态信息参考信号(aperiodic channel state information reference signal，A-CSI-RS)的位置信息，该终端设备根据每个第一信号包括的该触发信号指示的一个或多个A-CSI-RS的位置信息接收该一个或多个A-CSI-RS。即终端设备可以根据接收到的全部触发信息测量所有的A-CSI-RS(可以认为“测量”既包括接收A-CSI-RS，也包括对A-CSI-RS进行处理)，并且进行相应反馈，避免终端设备漏测相应的A-CSI-RS，从而无法进行相应的反馈。
在一种可能的实现方式中，该方法还包括：若该Y个第一信号指示至少一个第三信息， 该终端设备确定该至少一个第三信息中取值最大的第三信息有效；其中，该第三信息用于指示最大多输入多输出(multiple input multiple output，MIMO)层的数目(即Max MIMO layer值)。
其中，Max MIMO layer值与终端设备使用的天线数有关系。通常，Max MIMO layer值为N时，终端设备需要使用N根或N根以上的天线进行数据的发送或接收，才能保证数据传输正确。因此，为了保证数据正确传输，终端设备可以将接收到的多个Max MIMO layer值中最大的Max MIMO layer值视为有效，即根据该最大的Max MIMO layer值确定需要使用的天线的数目。
第二方面，本申请实施例提供一种信号传输方法，包括：终端设备在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，该终端设备在该目标服务小区或该目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区。
在一种可能的实现方式中，该目标服务小区为已配置的辅小区中的任一个辅小区，或者，该目标服务小区为已激活的辅小区中的一个或多个辅小区；该目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，该目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
第三方面，本申请实施例提供一种信号传输方法，包括：终端设备在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号指示至少一个第一信息，该终端设备确定该至少一个第一信息中取值最小的第一信息有效；和/或，若该Y个第一信号指示至少一个第二信息，该终端设备确定该至少一个第二信息中取值最小的第二信息有效；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
第四方面，本申请实施例提供一种信号传输方法，包括：在DRX的激活期内，若终端设备在一个时隙内接收到至少两个第一信息，该终端设备确定该至少两个第一信息中取值最小的第一信息有效；和/或，若该终端设备在一个时隙内接收到至少两个第二信息，该终端设备确定该至少两个第二信息中取值最小的第二信息有效；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
第五方面，本申请实施例提供一种信号传输方法，包括：终端设备在第一时间区间之前在第一BWP接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP，该终端设备将该第一BWP作为激活的BWP；其中，该第二BWP与该第三BWP不同。
第六方面，本申请实施例提供一种信号传输方法，包括：终端设备在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个A-CSI-RS的位置信息，该终端设备根据每个第一信号包括的该触发信号指示的一个或多个A-CSI-RS的位置信息接收该一个或多个A-CSI-RS。
第七方面，本申请实施例提供一种信号传输方法，包括：终端设备在第一时间区间之 前接收Y个第一信号，Y为大于等于1的整数；若该Y个第一信号中的至少一个第一信号指示至少一个第三信息，该终端设备确定该至少一个第三信息中取值最大的第三信息有效；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
第八方面，本申请实施例提供一种信号传输方法，包括：终端设备接收第二信号，该第二信号用于指示监测PDCCH的至少一个辅小区；该终端设备在主小区监测PDCCH，并根据该第二信号在该至少一个辅小区监测PDCCH。
基于本申请实施例提供的方法，终端设备可以在主小区监测PDCCH，并根据第二信号在至少一个辅小区监测PDCCH，第二信号可以仅指示在至少一个辅小区监测PDCCH，无需指示是否需要在主小区监测PDCCH，可以节省比特消耗。
在一种可能的实现方式中，该第二信号不指示在主小区监测PDCCH。
在一种可能的实现方式中，该第二信号为功耗节省信号。
在一种可能的实现方式中，该至少一个辅小区为已配置的辅小区中的一个或多个辅小区，或者，该至少一个辅小区为已激活的辅小区中的一个或多个辅小区。
第九方面，本申请实施例提供一种信号监测方法，包括：终端设备接收来自网络设备的配置信息，该配置信息用于为该终端设备配置的全部BWP配置第一信号的监测资源；该终端设备根据该配置信息在激活的BWP上监测第一信号，该激活的BWP是该终端设备配置的全部BWP中的一个。
基于本申请实施例提供的方法，网络设备可以为终端设备配置的全部BWP被配置需要监测功耗节省信号，避免在某个BWP上无法节能的问题。
在一种可能的实现方式中，该终端设备接收来自网络设备的配置信息包括：该终端设备分别接收用于为该全部BWP中每个BWP配置第一信号的监测资源的多个配置信息；或者，该终端设备接收用于为该全部BWP配置第一信号的监测资源的一个配置信息。也就是说，用于配置全部BWP上功耗节省信号的监测资源的配置信息可以是一起下发给终端设备的，也可以是分别下发给终端设备的，本申请不做限定。
第十方面，本申请实施例提供一种信号传输方法，包括：网络设备在第一时间区间之前发送Y个第一信号，Y为大于等于1的整数；其中，该Y个第一信号中的至少一个第一信号指示终端设备在第一时间区间内监测PDCCH。
和/或，该Y个第一信号中的至少一个第一信号指示终端设备在目标服务小区或目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区。其中，该目标服务小区为已配置的辅小区中的任一个辅小区，或者，该目标服务小区为已激活的辅小区中的一个或多个辅小区；该目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，该目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
和/或，该Y个第一信号指示至少一个第一信息；和/或，该Y个第一信号指示至少一个第二信息；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
和/或，该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP。
和/或，该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号 中的每个第一信号包括的触发信息用于指示一个或多个A-CSI-RS的位置信息。
和/或，该Y个第一信号指示至少一个第三信息；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
第十一方面，本申请实施例提供一种终端设备，包括：接收单元，用于在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；处理单元，用于若该Y个第一信号中的至少一个第一信号指示该终端设备在该第一时间区间内监测PDCCH，在该第一时间区间内监测PDCCH。
在一种可能的设计中，该处理单元还用于：若该Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，在该目标服务小区或该目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区。
在一种可能的设计中，该目标服务小区为已配置的辅小区中的任一个辅小区，或者，该目标服务小区为已激活的辅小区中的一个或多个辅小区；该目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，该目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
在一种可能的设计中，该处理单元还用于：若该Y个第一信号指示至少一个第一信息，确定该至少一个第一信息中取值最小的第一信息有效；和/或，若该Y个第一信号指示至少一个第二信息，确定该至少一个第二信息中取值最小的第二信息有效；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
在一种可能的设计中，该接收单元用于：在第一时间区间之前在第一BWP接收该Y个第一信号；该处理单元还用于，若该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP，将该第一BWP作为激活的BWP；其中，该第二BWP与该第三BWP不同。
在一种可能的设计中，该接收单元还用于：若该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个非周期性信道状态信息参考信号A-CSI-RS的位置信息，根据每个第一信号包括的该触发信号指示的一个或多个A-CSI-RS的位置信息接收该一个或多个A-CSI-RS。
在一种可能的设计中，该处理单元还用于：若该Y个第一信号指示至少一个第三信息，确定该至少一个第三信息中取值最大的第三信息有效；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
第十二方面，本申请实施例提供一种终端设备，包括：接收单元，用于在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；处理单元，用于若该Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，在该目标服务小区或该目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区。
在一种可能的实现方式中，该目标服务小区为已配置的辅小区中的任一个辅小区，或者，该目标服务小区为已激活的辅小区中的一个或多个辅小区；该目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，该目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
第十三方面，本申请实施例提供一种终端设备，包括：接收单元，用于在第一时间区 间之前接收Y个第一信号，Y为大于等于1的整数；处理单元，用于若该Y个第一信号指示至少一个第一信息，确定该至少一个第一信息中取值最小的第一信息有效；和/或，若该Y个第一信号指示至少一个第二信息，确定该至少一个第二信息中取值最小的第二信息有效；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
第十四方面，本申请实施例提供一种终端设备，包括：处理单元，用于在DRX的激活期内，若通过接收单元在一个时隙内接收到至少两个第一信息，确定该至少两个第一信息中取值最小的第一信息有效；和/或，若通过接收单元在一个时隙内接收到至少两个第二信息，确定该至少两个第二信息中取值最小的第二信息有效；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
第十五方面，本申请实施例提供一种终端设备，包括：接收单元，用于在第一时间区间之前在第一BWP接收Y个第一信号，Y为大于等于1的整数；处理单元，用于若该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP，将该第一BWP作为激活的BWP；其中，该第二BWP与该第三BWP不同。
第十六方面，本申请实施例提供一种终端设备，包括：接收单元，用于在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；处理单元，用于若该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个A-CSI-RS的位置信息，根据每个第一信号包括的该触发信号指示的一个或多个A-CSI-RS的位置信息接收该一个或多个A-CSI-RS。
第十七方面，本申请实施例提供一种终端设备，包括：接收单元，用于在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；处理单元，用于若该Y个第一信号中的至少一个第一信号指示至少一个第三信息，确定该至少一个第三信息中取值最大的第三信息有效；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
第十八方面，本申请实施例提供一种终端设备，包括：接收单元，用于接收第二信号，该第二信号用于指示监测PDCCH的至少一个辅小区；处理单元，用于在主小区监测PDCCH，并根据该第二信号在该至少一个辅小区监测PDCCH。
基于本申请实施例提供的方法，终端设备可以在主小区监测PDCCH，并根据第二信号在至少一个辅小区监测PDCCH，第二信号可以仅指示在至少一个辅小区监测PDCCH，无需指示是否需要在主小区监测PDCCH，可以节省比特消耗。
在一种可能的实现方式中，该第二信号不指示在主小区监测PDCCH。
在一种可能的实现方式中，该第二信号为功耗节省信号。
在一种可能的实现方式中，该至少一个辅小区为已配置的辅小区中的一个或多个辅小区，或者，该至少一个辅小区为已激活的辅小区中的一个或多个辅小区。
第十九方面，本申请实施例提供一种终端设备，包括：接收单元，用于接收来自网络设备的配置信息，该配置信息用于为该终端设备配置的全部BWP配置第一信号的监测资源；处理单元，用于根据该配置信息在激活的BWP上监测第一信号，该激活的BWP是该终端设备配置的全部BWP中的一个。
基于本申请实施例提供的方法，网络设备可以为终端设备配置的全部BWP被配置需要监测功耗节省信号，避免在某个BWP上无法节能的问题。
在一种可能的实现方式中，该接收单元用于：分别接收用于为该全部BWP中每个BWP配置第一信号的监测资源的多个配置信息；或者，接收用于为该全部BWP配置第一信号的监测资源的一个配置信息。也就是说，用于配置全部BWP上功耗节省信号的监测资源的配置信息可以是一起下发给终端设备的，也可以是分别下发给终端设备的，本申请不做限定。
第二十方面，本申请实施例提供一种网络设备，包括：发送单元，用于在第一时间区间之前发送Y个第一信号，Y为大于等于1的整数；其中，该Y个第一信号中的至少一个第一信号指示终端设备在第一时间区间内监测PDCCH；
和/或，该Y个第一信号中的至少一个第一信号指示终端设备在目标服务小区或目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区；该目标服务小区为已配置的辅小区中的任一个辅小区，或者，该目标服务小区为已激活的辅小区中的一个或多个辅小区；该目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，该目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区；
和/或，该Y个第一信号指示至少一个第一信息；和/或，该Y个第一信号指示至少一个第二信息；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值；
和/或，该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP；
和/或，该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个非周期性信道状态信息参考信号A-CSI-RS的位置信息；
和/或，该Y个第一信号指示至少一个第三信息；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
第二十一方面，本申请实施例提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行上述任一方面提供的任意一种方法。
第二十二方面，本申请实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述任一方面提供的任意一种方法。
第二十三方面，本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现上述任一方面提供的任意一种方法。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第二十四方面，本申请实施例还提供了一种装置，该装置可以是终端设备或芯片。该装置包括处理器，用于实现上述第一方面提供的任意一种方法。该装置还可以包括存储器，用于存储程序指令和数据，存储器可以是集成在该装置内的存储器，或设置在该装置外的片外存储器。该存储器与该处理器耦合，该处理器可以调用并执行该存储器中存储的程序指令，用于实现上述任一方面提供的任意一种方法。该装置还可以包括通信接口，该通信接口用于该装置与其它设备进行通信。
第二十五方面，本申请实施例提供了一种系统，所述系统包括第十一方面至第十九方面中任一方面的终端设备，和第二十方面中的网络设备。
附图说明
图1为现有技术中的一种DRX周期的示意图；
图2为现有技术中的一种发送功耗节省信号的示意图；
图3为本申请实施例提供的一种适用于信号传输方法的通信系统示意图；
图4为本申请实施例提供的一种适用于信号传输方法的信号交互示意图；
图5为本申请实施例提供的一种适用于信号传输方法的场景示意图；
图6为本申请实施例提供的又一种适用于信号传输方法的信号交互示意图；
图7为本申请实施例提供的一种终端设备的结构示意图；
图8为本申请实施例提供的又一种终端设备的结构示意图；
图9为本申请实施例提供的一种网络设备的结构示意图；
图10为本申请实施例提供的又一种网络设备的结构示意图。
具体实施方式
为了下述各实施例的描述清楚简洁，首先给出相关概念或技术的简要介绍：
随着新一代5G技术进入讨论阶段，原先4G LTE里已经达到的系统结构和接入流程是否继续采纳是一个问题。一方面，由于通信系统是后项兼容的，所以后来研发的新技术倾向于兼容之前已经标准化的技术；而另一方面，由于4G LTE已经存在了大量的现有设计，如果为了达到兼容，必然要牺牲掉5G的很多灵活度，从而降低性能。所以，目前在第三代合作伙伴计划(3rd generation partnership project，3GPP)组织中两个方向并行研究，两个方向中，不考虑后向兼容的技术讨论组，被称为5G NR，位于release 14中。
DRX cycle：在5G NR中，定义了DRX cycle。如图1所示，一个DRX cycle包括On Duration和Opportunity for DRX。在On Duration起始时刻(或者DRX Cycle起始时刻)，可以启动DRX开启持续时间定时器(drx-onDurationTimer，也可以称为onDurationTimer)。drx-onDurationTimer的时长为On Duration的时长，即drx-onDurationTimer的时长包括一个DRX cycle开始的一段持续时间。UE可以在On Duration期间内监测PDCCH，即UE可以在drx-onDurationTimer运行期间内监测PDCCH。当UE在drx-onDurationTimer运行期间内接收到调度上行(uplink，UL)或下行(downlink，DL)的新传输的PDCCH(即接收到一个新传的PDCCH)时，可以启动(或重启)非激活定时器(drx-InactivityTimer)。UE可以在drx-InactivityTimer运行期间继续监测PDCCH直到drx-InactivityTimer超时。其中，“监测”PDCCH是指UE在一系列PDCCH候选位置(candidate)上进行盲检，查看是否有发给自己的PDCCH。
应该理解的是，一组(一个或多个)PDCCH candidate可以组成一个搜索空间集合(search space set)。一个或多个search space set所占用的时频资源位置被称为控制资源集合(control resource set，CORESET)。其中，不同的search space set有不同的监测周期。search space set可以分为common search space set(公共搜索空间集合)和UE-specific search space set(UE特定的搜索空间集合)两种类型，不同类型的搜索空间集合中会检测携带不同格式(format)的下行控制信息(downlink control information，DCI)的PDCCH。网络侧可以在为UE配置搜索空间集合的时候配置UE需要监测PDCCH的格式。
载波聚合(carrier aggregation，CA)：在LTE标准制定的初始阶段，规定了一个载波的最大带宽为20MHz。在之后的标准化过程中，对LTE进行了进一步的改进，被称为演进的LTE(LTE-Advanced，LTE-A)。为了满足LTE-A中规定的下行峰速1Gbps，上行峰速500Mbps的要求，需要提供最大100MHz的传输带宽。由于大带宽的连续频谱的稀缺，LTE-A提出了载波聚合的解决方案。载波聚合是将2个或更多的组分载波(component carrier，CC)聚合在一起以支持更大的传输带宽(最大为100MHz)。每个CC可以对应一个独立的小区(cell)，也可以说1个CC等同于1个小区。每个CC的最大带宽可以为20MHz。
从第10个版本(Release 10，Rel-10)开始，CA被引入标准。一个UE最多可以配置5个CC，其中一个CC对应主小区(primary cell，PCell)，其余CC对应辅小区(secondary cell，SCell)。其中，PCell负责与UE之间的无线资源控制(radio resource control，RRC)通信，物理上行控制信道(physical upnlink control channel，PUCCH)只能在PCell上发送。Pcell可以是UE进行初始连接建立的小区，或进行RRC连接重建的小区，或是在切换(handover)过程中指定的小区。SCell是在RRC重配置时添加的小区，用于提供额外的无线资源。
从第13个版本(Release 13，Rel-13)开始，增强的CA(enhanced CA，eCA)被引入标准，一个UE最多可以被配置32个CC。在NR中，同样可以采用eCA，其中上行和下行分别最多支持16个CC。同时，在基站带宽较大且UE能力不足，无法通过单载波支持如此大的带宽时，UE可以通过带内连续CA(intra band contiguous CA)的方式支持大带宽。比如基站带宽为400MHz，UE能支持的最大连续带宽为100MHz时，UE可以将基站的带宽看成4个100MHz带宽的聚合，用CA的方式与基站通信。
在CA的场景下，各个CC可以遵循相同的DRX cycle、激活期和休眠期的长度，即UE在各个CC上都是同醒同睡。或者，不同CC可以配置不同的DRX cycle，即不同CC的DRX cycle可以不同。
BWP：5G NR中支持网络设备和UE之间占用一部分带宽(BWP)进行传输，这是由于5G的系统带宽(系统带宽可以是指一个载波的带宽，对应CA或者DC场景中，每个CC的带宽)可以为200MHz或者400MHz，一些UE无法支持这么大的带宽，因此网络设备可以给UE配置BWP(系统带宽的一部分)，例如20MHz，UE可以在20MHz上与网络设备进行通信。
在频分双工(frequency division duplexing，FDD)或者时分双工(time division duplexing，TDD)系统中，都可以支持BWP。BWP可以分为下行BWP(Downlink BWP，DL BWP)和上行BWP(Uplink BWP，UL BWP)。网络设备可以为UE配置多个DL BWP以及多个UL BWP，并且激活一个DL BWP以及激活一个UL BWP。UE在激活的DL BWP(即active DL BWP)上接收基站发送的下行信号，包括但不限于，接收下行控制信令和下行数据等等；UE在激活的UL BWP(即active UL BWP)上发送上行信号，包括但不限于，发送上行控制信令，上行数据，调度请求(scheduling request，SR)，上行探测参考信号(sounding reference signal，SRS)，信道状态信息(channel state information，CSI)以及信道质量指示(ChannelQuality Indicator，CQI)等等。
当基站与UE在激活的BWP(DL BWP或者UL BWP)上通信时，基站可以激活另一个BWP，从而使得UE转换(switch)到新激活的BWP上接收或者发送数据。示例性的， UE切换激活BWP的方法可以包括：1)基站为UE发送PDCCH，指示UE切换BWP；2)基站为UE发送RRC信令，指示UE切换BWP；3)基站和UE都维护一个定时器，当定时器超时的时候，UE从非默认BWP切换到默认BWP(default BWP)。
UE配置的多个BWP可以遵循相同的DRX周期，以及激活期和休眠期的长度，即UE在各个BWP上都是同醒同睡。或者，不同BWP可以配置不同的DRX周期。
跨时隙调度和同时隙调度：在5G NR中，用于携带调度信息的PDCCH和该PDCCH对应的用于携带下行数据的PDSCH之间的时间间隔是由基站动态指示的，PDCCH和对应的PDSCH之间的时间间隔可以用K0值(以时隙slot为单位)表示，K0值可以对应一个取值集合，该取值集合是由基站通过RRC信令配置的。在一次调度中，基站可以在PDCCH中指示K0值的取值集合中的一个取值。如果K0值＝0，说明PDCCH与PDSCH在同一个时隙，称为“同时隙调度”。如果K0值>0，说明PDCCH与PDSCH不在同一个时隙，称为“跨时隙调度”。
一般来说，跨时隙调度的时候，UE可以避免缓存一些无用数据，因此可以达到节能的目的。当UE知道其被指示的K0值全都大于0的时候，UE肯定是被跨时隙调度的。如果UE的K0值的取值集合中包含0，那么UE有可能被同时隙调度，此时UE无法达到节能的目的。
同理，对于PDCCH和对应的用于携带上行数据的PUSCH之间的时间间隔也有类似的规定，PDCCH和对应的PUSCH之间的时间间隔可以用K2值表示。因此，基站可以通过K0/K2值指示UE的调度方式。
另外，基站还可以向UE指示最小K0/K2值，用于限定基站向UE指示的K0/K2值的指示范围，最小K0/K2值可以是从K0/K2值的取值集合中选择得到的。例如，基站通过RRC信令向UE配置的K0值的取值集合为{0,1,2,3}，即在一次调度中，基站可以向UE指示K0值为{0,1,2,3}中的任意一个。之后基站向UE指示了最小K0值为1，则在此之后基站可以向UE指示K0值为{1,2,3}中的任意一个，不能向UE指示K0值为0。通过这种方式，UE可以预先知道其被指示的K0值全都大于0，UE肯定是被跨时隙调度的。此时UE就可以避免缓存一些无用数据，因此可以达到节能的目的。
功耗节省信号：即power saving signal，也可以称为功率节省信号，或者可以被称为唤醒信号(wake up signal，WUS)，下文统称为功耗节省信号。网络设备可以向终端设备发送功耗节省信号，指示终端设备在一个或多个DRX周期内处于睡眠状态，即在一个或多个DRX周期内不监测PDCCH，以节省终端设备的功耗。网络设备也可以向终端设备发送功耗节省信号，以唤醒睡眠状态的终端设备，即指示终端设备在一个或多个DRX周期内监测PDCCH。可选的，功耗节省信号还可以用于指示以下信息的一种或多种：
1)、UE被配置了CA时，功耗节省信号仅在一个CC上发送，但可以指示多个CC上UE的行为。例如，功耗节省信号可以进一步指示在哪些CC上需要监测PDCCH，相当于是一种更细粒度的指示。2)、功耗节省信号可以指示最小K0/K2值。3)、功耗节省信号可以指示待切换的BWP的index，UE进入On Duration后，可以在被指示的BWP上工作。4)、功耗节省信号可以指示(上行或下行)最大MIMO层数，UE在进入On Duration后，可以根据最大MIMO层数对应的天线数进行工作。5)、功耗节省信号可以触发CSI测量，UE可以根据功耗节省信号接收信道状态信息参考信号(channel state information reference  signal，CSI-RS)，并上报CSI反馈信息。
为了保证功耗节省信号的可靠性，可以重复多次发送功耗节省信号。但是，在传输过程中由于信道状态差等原因，UE接收到的多个功耗节省信号的内容可能是不同的，或者由于UE解码错误，UE对多个功耗节省信号解析得到的信息不同，此时，UE应该如何处理，标准目前还未给出相应规定。
为了解决上述问题，本申请实施例提供一种信号传输方法，若终端设备在第一时间区间之前接收到的Y个第一信号(功耗节省信号)中，有至少一个第一信号指示终端设备在第一时间区间内监测PDCCH，终端设备在第一时间区间内监测PDCCH。这样可以降低时延，这是由于若基站希望UE监测PDCCH，但由于信道质量突然变差导致UE接收到错误的第一信号，UE根据错误的第一信号不监测PDCCH，那么基站发送给UE的数据在当前DRX cycle就会传输失败，只能在之后的DRX cycle传输，造成数据传输时延增大。为了避免这种情况，可以牺牲UE的部分功耗，让UE尽可能监测PDCCH，以降低数据传输失败概率，从而降低传输时延。
本申请实施例可以应用于LTE系统、5G NR系统，下一代无线局域网系统等各种无线通信系统中。
如图3所示，为本申请实施例提供的一种适用于信号传输方法的通信系统示意图，该通信系统可以包括网络设备100(例如基站)以及与网络设备100连接的一个或多个终端设备200(图3仅示出1个)。终端设备可以在第一时间区间之前接收网络设备发送的Y个第一信号，若Y个第一信号中的至少一个第一信号指示终端设备在第一时间区间内监测PDCCH，终端设备在第一时间区间内监测PDCCH。
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描述。其中，在本申请的描述中，除非另有说明，“至少一个”是指一个或多个，“多个”是指两个或多于两个。另外，为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
为了便于理解，以下结合附图对本申请实施例提供的信号传输方法进行具体介绍。
如图4所示，本申请实施例提供一种信号传输方法，以第一信号为功耗节省信号为例进行说明，包括：
401、网络设备在第一时间区间之前发送Y个功耗节省信号，Y为大于等于1的整数。
402、终端设备在第一时间区间之前接收Y个功耗节省信号，Y为大于等于1的整数。
其中，第一时间区间可以包括一个或多个DRX周期，或者，第一时间区间可以包括一个或多个On Duration。例如，功耗节省信号可以指示终端设备在接下来的3个DRX周期内不监测PDCCH(即处于睡眠状态)，接下来的3个DRX周期即网络设备发送功耗节省信号后到来的3个DRX周期。又例如，功耗节省信号可以指示终端设备在接下来的2个On Duration内不监测PDCCH。
在第一时间区间之前，可以有X(X≥1)个用于监测功耗节省信号的时机(occasion)，该X个occasion与第一时间区间的起始时刻之间分别具有不同的时间间隔，时间间隔也可以称为时间偏移量或称为offset。每个occasion与第一时间区间之间的时间间隔可以用于 UE对功耗节省信号进行处理(例如解析功耗节省信号)，时频同步，信道状态信息(channel state information，CSI)测量、波束管理(beam management)等处理操作。
举例来说，假设X＝3，第一个occasion与第一时间区间的起始时刻之间的时间间隔可以是3ms(即第一个occasion位于第一时间区间的起始时刻的前3ms)；第二个occasion可以位于第一时间区间的起始时刻的前2ms；第三个occasion可以位于第一时间区间的起始时刻的前1ms。
网络设备可以在上述X个occasion中每个occasion发送功耗节省信号，但由于信道质量差，UE可能仅接收到了Y(1≤Y≤X)个功耗节省信号或者没有接收到功耗节省信号(即接收到0个功耗节省信号)。或者，网络设备可以在上述X个occasion中Y个occasion发送功耗节省信号，UE可以接收到Y(1≤Y≤X)个功耗节省信号。
网络设备在上述X个occasion中每个occasion发送的功耗节省信号的内容可以相同或不同，相同时，相当于对功耗节省信号进行了重复发送，不同时，可能是网络设备(例如，基站)临时改变了调度策略，希望更改指示内容。
403、若Y个功耗节省信号中的至少一个功耗节省信号指示终端设备在第一时间区间内监测PDCCH，终端设备在第一时间区间内监测PDCCH。
例如，假设Y＝2，其中一个功耗节省信号指示终端设备在第一时间区间内监测PDCCH，另一个功耗节省信号指示终端设备在第一时间区间内不监测PDCCH，终端设备仍在第一时间区间内监测PDCCH。仅当UE接收到的Y个(例如，2个)功耗节省信号全部都指示UE在第一时间区间内不监测PDCCH，UE可以在第一时间区间内不监测PDCCH。
这样，若基站本希望UE在第一时间区间内监测PDCCH，即通过功耗节省信号指示终端设备在第一时间区间内监测PDCCH，但由于信道质量突然变差导致UE接收到错误的功耗节省信号，或者UE解码错误，导致UE根据错误的功耗节省信号在第一时间区间内不监测PDCCH，那么基站发送给终端设备的数据在当前DRX cycle就会传输失败，只能在之后的DRX cycle传输，这样会造成传输时延增大。为了避免这种情况，可以通过定义终端设备的错误处理行为，即只要有一个功耗节省信号指示在第一时间区间内监测PDCCH，终端设备就监测PDCCH，这样可能牺牲了终端设备的部分功耗，但可以降低数据传输失败概率(即避免数据传输失败)，从而降低传输时延。
另外，如果终端设备在第一时间区间之前的X个occasion中检测到了0个功耗节省信号，即终端设备在第一时间区间之前没有监测到功耗节省信号，很可能是由于信道质量太差，基站发送的功耗节省信号没有被终端设备成功接收。此时，为了降低时延，终端设备也可以在第一时间区间监测PDCCH。
在一种可能的设计中，若Y个功耗节省信号中的至少一个功耗节省信号指示在目标服务小区或目标服务小区组监测PDCCH，终端设备在目标服务小区或目标服务小区组监测PDCCH，以保证终端设备接收到基站向终端设备发送的全部PDCCH。
其中，目标服务小区可以为已配置的辅小区中的任一个辅小区，或者，目标服务小区可以为已激活的辅小区中的一个或多个辅小区。目标服务小区组可以包括多个服务小区，该多个服务小区可以为已配置的辅小区中的多个辅小区，或者，该多个服务小区可以为已激活的辅小区中的多个辅小区。
示例性的，可以在功耗节省信号中使用5个比特位(bit)分别指示小区1～小区5是否 需要在第一时间区间内监测PDCCH。1可以表示需要监测，0可以表示不需要监测。如果终端设备接收到两个功耗节省信号，分别指示了11000和10010，则终端设备在第一时间区间内，可以在小区1、小区2和小区4上监测PDCCH。
再例如，可以在功耗节省信号中使用3个bit分别指示小区组1～小区组3是否需要在第一时间区间内监测PDCCH。1可以表示需要监测，0可以表示不需要监测。如果终端设备接收到两个功耗节省信号，分别指示了100和001，则终端设备在第一时间区间内，可以在小区组1内的所有小区以及小区组3内的所有小区上监测PDCCH。
在一种可能的设计中，若Y个功耗节省信号指示至少一个第一信息，终端设备确定至少一个第一信息中取值最小的第一信息有效；和/或，若Y个功耗节省信号指示至少一个第二信息，终端设备确定至少一个第二信息中取值最小的第二信息有效。其中，第一信息用于指示PDCCH和PDCCH对应的PDSCH之间的时间间隔的最小可用值，例如第一信息可以为最小K0值。第二信息用于指示PDCCH和PDCCH对应的PUSCH之间的时间间隔的最小可用值，例如，第二信息可以为最小K2值。
可以理解的是，若基站原本通过功耗节省信号指示的最小K0/K2值等于0，即基站可以以同时隙调度的方式调度终端设备，但由于信道质量突然变差导致终端设备接收到错误的功耗节省信号，或者UE解码错误，导致终端设备根据错误的功耗节省信号得到的最小K0/K2值大于0，从而终端设备认为自己是被跨时隙调度的，则终端设备无法正确接收基站以同时隙调度方式发送的数据。为了避免数据传输失败，当出现多种最小K0/K2值(即终端设备认为多个功耗节省信号指示了不同的最小K0/K2值)时，终端设备可以将多个最小K0/K2值中最小的一个视为有效。这样，若基站希望以同时隙调度的方式调度终端设备，终端设备可以正确接收基站发送的数据，即使基站希望以跨时隙调度的方式调度终端设备，但终端设备认为自己是被同时隙调度的，终端设备可能需要额外缓存一些无用数据，但仍可以正确接收基站发送的数据。
另外，在DRX的激活期内(包括DRX的OnDuration期间(onDurationTimer运行期间)，和/或，Inactivity Timer运行期间内)，若终端设备在一个时隙内接收到至少两个第一信息(例如，最小K0值)，终端设备确定至少两个第一信息中取值最小的第一信息有效；和/或，若终端设备在一个时隙内接收到至少两个第二信息(例如，最小K2值)，终端设备确定至少两个第二信息中取值最小的第二信息有效。其中，第一信息和第二信息可以包含在调度上行和/或下行数据的DCI中。
即在DRX的激活期内，如果终端设备在同一个时隙内接收到了2种或2种以上的最小K0/K2值指示，终端设备可以将多个最小K0/K2值中最小的一个视为有效，即根据最小的最小K0/K2值确定自身是被同时隙调度还是被跨时隙调度，以保证能够正确接收基站发送的数据。
在一种可能的设计中，若终端设备在第一BWP接收到Y个功耗节省信号，该Y个功耗节省信号中的至少两个功耗节省信号分别指示终端设备从第一BWP切换到第二BWP和第三BWP，终端设备仍将第一BWP作为激活的BWP，即不切换当前的BWP。其中，第二BWP与第三BWP不同。
举例来说，如果Y＝1，即终端设备仅收到了1个功耗节省信号，该功耗节省信号指示BWP index1，终端设备可以根据BWP index1切换到对应的BWP上。如果Y≥2，即终端 设备收到了2个或2个以上的功耗节省信号，若每个功耗节省信号指示的BWP index都相同，那么终端设备可以切换到对应的BWP上。若其中至少两个功耗节省信号分别指示了两种不同的BWP index(例如，分别为BWP index2和BWP index3)，则终端设备不切换BWP，即仍将第一BWP作为激活的BWP。
由于终端设备无法确定接收到的多个BWP index中哪个BWP index是正确的，终端设备可以不切换BWP，即仍驻留在当前激活的BWP，BWP定时器(timer)超时后，终端设备可以在default BWP上和基站对齐。
举例来说，若基站向终端设备重复发送了两个指示BWP index 2的功耗节省信号，即希望把终端设备切换到BWP index 2对应的BWP上，但由于信道质量变差等原因，终端设备接收到的两个BWP index分别为BWP index 2和BWP index 3。若当前激活的BWP为BWP1，BWP timer的时长为200ms。当终端设备接收到第二个功耗节省信号的时候，假设BWP timer已经运行到120ms。如果终端设备选择切换到BWP index 3对应的BWP上，BWP timer会重启，这样需要在200ms之后终端设备才能与基站对齐，而如果终端设备保持当前激活的BWP不变，经过80ms的无调度时间(即在该80ms内没有被再次调度)后，终端设备可以切换到default BWP上，可以与基站对齐，从而可以节省对齐时间。
需要说明的是，终端设备可以根据配置信息在激活的BWP(第一BWP)上监测功耗节省信号，配置信息用于为终端设备配置的全部BWP配置功耗节省信号的监测资源(功耗节省信号的监测资源即用于监测功耗节省信号的资源)。其中，当前激活的BWP是终端设备配置的全部BWP中的一个。这样，可以避免基站漏配某个BWP上功耗节省信号的监测资源，从而避免当active BWP切换到该BWP时，在该BWP上无法节能的问题。
例如，如果网络设备为终端设备配置了2个BWP，分别是BWP 1和BWP 2，其中仅在BWP1上配置了需要监测功耗节省信号，没有在BWP 2上配置需要监测功耗节省信号，当终端设备的active BWP切换到BWP 2的时候，就无法监测功耗节省信号，也就无法节能。基于本申请实施例提供的方法，网络设备可以为终端设备配置的全部BWP被配置需要监测功耗节省信号，避免在某个BWP上无法节能的问题。
需要说明的是，终端设备可以分别接收用于为全部BWP中每个BWP配置功耗节省信号的监测资源的多个配置信息；例如，假设终端设备配置的全部BWP包括BWP1-BWP3，网络设备可以在配置信息1中为BWP1配置功耗节省信号的监测资源，在配置信息2中为BWP2配置功耗节省信号的监测资源，在配置信息3中为BWP3配置功耗节省信号的监测资源，配置信息1、配置信息2和配置信息3可以分三次发送。或者，终端设备接收用于为全部BWP配置功耗节省信号的监测资源的一个配置信息，该配置信息可以为全部BWP配置功耗节省信号的监测资源。也就是说，用于配置全部BWP上功耗节省信号的监测资源的配置信息可以是一起下发给终端设备的，也可以是分别下发给终端设备的，本申请不做限定。
可以理解的是，终端设备与网络设备通信的过程中，终端设备除了收发数据之外，还可以接收或者发送参考信号(reference signal，RS)，并根据RS进行相应处理。例如，终端设备可以接收网络设备发送的A-CSI-RS，然后使用该A-CSI-RS进行信道状态测量，并可以将测量结果反馈给网络设备，以便网络设备更好的进行数据调度，比如调节调制和编码方案(modulation and coding scheme，MCS)，确定MIMO的预编码矩阵等。终端设备接 收网络设备发送的A-CSI-RS时，需要获知A-CSI-RS的位置信息，网络设备可以通过功耗节省信号指示A-CSI-RS的位置信息。例如，功耗节省信号可以包括触发信息，该触发信息用于指示一个或多个A-CSI-RS的位置信息(每个A-CSI-RS的位置信息可以用每个A-CSI-RS相对于On Duration的offset表示，offset可以是预先配置好的)。
在一种可能的设计中，若Y个功耗节省信号中的至少一个功耗节省信号包括触发信息(例如，trigger state)，终端设备可以根据每个触发信号指示的一个或多个A-CSI-RS的位置信息接收一个或多个A-CSI-RS，以免漏测相应的A-CSI-RS。而后，终端设备可以基于一个或多个A-CSI-RS生成信道反馈，并向网络和设备发送所生成的反馈。即终端设备可以根据接收到的全部触发信息测量所有的A-CSI-RS(可以认为“测量”既包括接收A-CSI-RS，也包括对A-CSI-RS进行处理)，并且进行相应反馈，避免终端设备漏测相应的A-CSI-RS，从而无法进行相应的反馈。
在一种可能的设计中，若Y个功耗节省信号指示至少一个第三信息(即Y个功耗节省信号中，有至少一个功耗节省信号指示第三信息)，终端设备确定至少一个第三信息中取值最大的第三信息有效。其中，第三信息用于指示最大多输入多输出MIMO层的数目(即Max MIMO layer值)。
例如，Y＝3时，若该3个功耗节省信号中有2个功耗节省信号指示了Max MIMO layer值，分别为4和5，终端设备确定取值最大的Max MIMO layer值有效，即确定Max MIMO layer值为5。
其中，Max MIMO layer值与终端设备使用的天线数有关系。通常，Max MIMO layer值为N时，终端设备需要使用N根或N根以上的天线进行数据的发送或接收，才能保证数据传输正确。因此，为了保证数据正确传输，终端设备可以将接收到的多个Max MIMO layer值中最大的Max MIMO layer值视为有效，即根据该最大的Max MIMO layer值确定需要使用的天线的数目。
下面结合本申请实施例的应用场景及有益效果，以网络设备为网络设备100，终端设备为手机200为例，对本申请实施例提供的信号传输方法进行介绍。
如图5所示，网络设备100可以在多个(例如，三个)时机发送功耗节省信号，功耗节省信号可以用于指示手机200在下一个On Duration内监测PDCCH。网络设备100确定手机200的下一个On Duration(即将到来的DRX周期的On Duration)的起始时刻，并确定早于该起始时刻的三个监测时机(occasion)，分别为时机1、时机2和时机3。网络设备分别在上述三个时机发送功耗节省信号，手机200分别在上述三个时机接收功耗节省信号。若该3个功耗节省信号中，有至少一个功耗节省信号指示终端设备在On Duration内监测PDCCH，终端设备在On Duration内监测PDCCH。这样可能牺牲了终端设备的部分功耗，但可以降低数据传输失败概率(即避免数据传输失败)，从而降低传输时延。
另外，如图6所示，本申请实施例还提供一种信号监测方法，包括：
601、网络设备发送第二信号，第二信号用于指示监测PDCCH的至少一个辅小区。
其中，第二信号可以为功耗节省信号，也可以是其他信号，本申请不做限定。
602、终端设备接收第二信号，第二信号用于指示监测PDCCH的至少一个辅小区。
其中，至少一个辅小区可以为终端设备已配置的辅小区中的一个或多个辅小区，或者，至少一个辅小区可以为终端设备已激活的辅小区中的一个或多个辅小区。
603、终端设备在主小区监测PDCCH，并根据第二信号在至少一个辅小区监测PDCCH。
由于终端设备在主小区上始终都需要监测PDCCH，以保持终端设备与网络侧的连接，因此第二信号可以仅指示在至少一个辅小区监测PDCCH，无需指示是否需要在主小区监测PDCCH，从而可以节省比特消耗。
例如，假设终端设备配置有5个小区，包括1个主小区和4个辅小区，可以仅使用4个比特指示终端设备在4个辅小区监测PDCCH即可，无需指示主小区，可以节省比特消耗。
基于本申请实施例提供的方法，终端设备可以在主小区监测PDCCH，并根据第二信号在至少一个辅小区监测PDCCH，第二信号可以仅指示在至少一个辅小区监测PDCCH，无需指示是否需要在主小区监测PDCCH，可以节省比特消耗。
上述主要从终端设备和网络设备的角度对本申请实施例提供的方案进行了介绍。可以理解的是，终端设备和网络设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端设备和网络设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。
在采用对应各个功能划分各个功能模块的情况下，图7示出了上述实施例中所涉及的终端设备7的一种可能的结构示意图，终端设备包括：接收单元701和处理单元702。在本申请实施例中，接收单元701，用于在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；处理单元702，用于若该Y个第一信号中的至少一个第一信号指示该终端设备在该第一时间区间内监测PDCCH，在该第一时间区间内监测PDCCH。
可选的，处理单元702还用于：若该Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，在该目标服务小区或该目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区。
可选的，该处理单元702还用于：若该Y个第一信号指示至少一个第一信息，确定该至少一个第一信息中取值最小的第一信息有效；和/或，若该Y个第一信号指示至少一个第二信息，确定该至少一个第二信息中取值最小的第二信息有效；其中，该第一信息用于指示PDCCH和该PDCCH对应的物理下行数据信道PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值。
可选的，接收单元701用于：在第一时间区间之前在第一BWP接收该Y个第一信号；处理单元702还用于，若该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP，将该第一BWP作为激活的BWP；其中，该第二BWP与该第三BWP不同。
可选的，该接收单元701还用于：若该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个非周期性信道状态信息参考信号A-CSI-RS的位置信息，根据每个第一信号包括的该触发信号指示的一个或多个A-CSI-RS的位置信息接收该一个或多个A-CSI-RS。
可选的，该处理单元702还用于：若该Y个第一信号指示至少一个第三信息，确定该至少一个第三信息中取值最大的第三信息有效；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
可选的，接收单元701可以用于接收第二信号，该第二信号用于指示监测PDCCH的至少一个辅小区；处理单元702可以用于在主小区监测PDCCH，并根据该第二信号在该至少一个辅小区监测PDCCH。
在图4或图6所示的方法实施例中，接收单元701用于支持终端设备执行图4中的过程402或图6中的过程602。处理单元702用于支持终端设备执行图4中的过程403或图6中的过程603。
在一种可能的设计中，终端设备可以通过图8中的结构(装置或系统)来实现。
图8所示为本申请实施例提供的一种结构的示意图。结构800包括至少一个处理器801，通信总线802，存储器803以及至少一个通信接口804。
处理器801可以是一个CPU，微处理单元，ASIC，或一个或多个用于控制本申请方案程序执行的集成电路。
通信总线802可包括一通路，在上述组件之间传送信息。
通信接口804，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
存储器803可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过总线与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器803用于存储执行本申请方案的应用程序代码，并由处理器801来控制执行。处理器801用于执行存储器803中存储的应用程序代码，从而实现本申请方法中的功能。
在具体实现中，作为一种实施例，处理器801可以包括一个或多个CPU，例如图8中的CPU0和CPU1。
在具体实现中，作为一种实施例，结构800可以包括多个处理器，例如图8中的处理器801和处理器807。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或 用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，结构800还可以包括输出设备805和输入设备806。输出设备805和处理器801通信，可以以多种方式来显示信息。例如，输出设备805可以是液晶显示器(liquid crystal display，LCD),发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪(projector)等。输入设备806和处理器801通信，可以以多种方式接受用户的输入。例如，输入设备806可以是鼠标、键盘、触摸屏设备或传感设备等。
在具体实现中，结构800可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端设备、通信设备、嵌入式设备或有图8中类似结构的设备。本申请实施例不限定结构800的类型。
在采用对应各个功能划分各个功能模块的情况下，图9示出了上述实施例中所涉及的网络设备9的一种可能的结构示意图，网络设备9包括：发送单元901。在本申请实施例中，发送单元901，用于在第一时间区间之前发送Y个第一信号，Y为大于等于1的整数；其中，该Y个第一信号中的至少一个第一信号指示终端设备在第一时间区间内监测PDCCH。
和/或，该Y个第一信号中的至少一个第一信号指示终端设备在目标服务小区或目标服务小区组监测PDCCH；其中，该目标服务小区组包括多个服务小区。
和/或，该Y个第一信号指示至少一个第一信息；和/或，该Y个第一信号指示至少一个第二信息；其中，该第一信息用于指示PDCCH和该PDCCH对应的PDSCH之间的时间间隔的最小可用值，该第二信息用于指示PDCCH和该PDCCH对应的PUSCH之间的时间间隔的最小可用值；
和/或，该Y个第一信号中的至少两个第一信号分别指示该终端设备从该第一BWP切换到第二BWP和第三BWP；
和/或，该Y个第一信号中的至少一个第一信号包括触发信息，该至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个A-CSI-RS的位置信息；
和/或，该Y个第一信号指示至少一个第三信息；其中，该第三信息用于指示最大多输入多输出MIMO层的数目。
可选的，发送单元可以用于发送第二信号，该第二信号用于指示终端设备监测PDCCH的至少一个辅小区。
在图4或图6所示的方法实施例中，发送单元901用于支持网络设备执行图4中的过程401或图6中的过程601。
在一种可能的设计中，网络设备可以通过图10中的基站来实现。
如图10所示，为本申请实施例提供的一种基站的结构示意图，包括1001部分以及1002部分。基站1001部分主要用于射频信号的收发以及射频信号与基带信号的转换；1002部分主要用于基带处理，对基站进行控制等。1001部分通常可以称为收发单元、收发机、收发电路、或者收发器等。1002部分通常是基站的控制中心，通常可以称为处理单元，用于控制基站执行上述图3中关于基站(即服务基站)所执行的步骤。具体可参见上述相关部分的描述。
1001部分的收发单元，也可以称为收发机，或收发器等，其包括天线和射频单元，其中射频单元主要用于进行射频处理。可选的，可以将1001部分中用于实现接收功能的器 件视为接收单元，将用于实现发送功能的器件视为发送单元，即1001部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
1002部分可以包括一个或多个单板，每个单板可以包括一个或多个处理器和一个或多个存储器，处理器用于读取和执行存储器中的程序以实现基带处理功能以及对基站的控制。若存在多个单板，各个单板之间可以互联以增加处理能力。作为一中可选的实施方式，也可以是多个单板共用一个或多个处理器，或者是多个单板共用一个或多个存储器，或者是多个单板同时共用一个或多个处理器。其中，存储器和处理器可以是集成在一起的，也可以是独立设置的。在一些实施例中，1001部分和1002部分可以是集成在一起的，也可以是独立设置的。另外，1002部分中的全部功能可以集成在一个芯片中实现，也可以部分功能集成在一个芯片中实现另外一部分功能集成在其他一个或多个芯片中实现，本申请对此不进行限定。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。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。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。
本领域内的技术人员应明白，本申请实施例可提供为方法、系统、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。

Claims (18)

  1. 一种信号传输方法，其特征在于，包括：
    终端设备在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；
    若所述Y个第一信号中的至少一个第一信号指示所述终端设备在所述第一时间区间内监测物理下行控制信道PDCCH，所述终端设备在所述第一时间区间内监测PDCCH。
  2. 根据权利要求1所述的信号传输方法，其特征在于，所述方法还包括：
    若所述Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，所述终端设备在所述目标服务小区或所述目标服务小区组监测PDCCH；其中，所述目标服务小区组包括多个服务小区。
  3. 根据权利要求2所述的信号传输方法，其特征在于，
    所述目标服务小区为已配置的辅小区中的任一个辅小区，或者，所述目标服务小区为已激活的辅小区中的一个或多个辅小区；
    所述目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，所述目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
  4. 根据权利要求1-3任一项所述的信号传输方法，其特征在于，所述方法还包括：
    若所述Y个第一信号指示至少一个第一信息，所述终端设备确定所述至少一个第一信息中取值最小的第一信息有效；和/或，
    若所述Y个第一信号指示至少一个第二信息，所述终端设备确定所述至少一个第二信息中取值最小的第二信息有效；
    其中，所述第一信息用于指示PDCCH和所述PDCCH对应的物理下行共享信道PDSCH之间的时间间隔的最小可用值，所述第二信息用于指示PDCCH和所述PDCCH对应的物理上行共享信道PUSCH之间的时间间隔的最小可用值。
  5. 根据权利要求1-4任一项所述的信号传输方法，其特征在于，所述终端设备在第一时间区间之前接收Y个第一信号包括：
    所述终端设备在第一时间区间之前在第一带宽部分BWP接收所述Y个第一信号；
    若所述Y个第一信号中的至少两个第一信号分别指示所述终端设备从所述第一BWP切换到第二BWP和第三BWP，所述终端设备将所述第一BWP作为激活的BWP；其中，所述第二BWP与所述第三BWP不同。
  6. 根据权利要求1-5任一项所述的信号传输方法，其特征在于，所述方法还包括：
    若所述Y个第一信号中的至少一个第一信号包括触发信息，所述至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个非周期性信道状态信息参考信号A-CSI-RS的位置信息，所述终端设备根据每个第一信号包括的所述触发信号指示的一个或多个A-CSI-RS的位置信息接收所述一个或多个A-CSI-RS。
  7. 根据权利要求1-6任一项所述的信号传输方法，其特征在于，所述方法还包括：
    若所述Y个第一信号指示至少一个第三信息，所述终端设备确定所述至少一个第三信息中取值最大的第三信息有效；
    其中，所述第三信息用于指示最大多输入多输出MIMO层的数目。
  8. 一种终端设备，其特征在于，包括：
    接收单元，用于在第一时间区间之前接收Y个第一信号，Y为大于等于1的整数；
    处理单元，用于若所述Y个第一信号中的至少一个第一信号指示所述终端设备在所述第一时间区间内监测物理下行控制信道PDCCH，在所述第一时间区间内监测PDCCH。
  9. 根据权利要求8所述的终端设备，其特征在于，所述处理单元还用于：
    若所述Y个第一信号中的至少一个第一信号指示在目标服务小区或目标服务小区组监测PDCCH，在所述目标服务小区或所述目标服务小区组监测PDCCH；其中，所述目标服务小区组包括多个服务小区。
  10. 根据权利要求9所述的终端设备，其特征在于，
    所述目标服务小区为已配置的辅小区中的任一个辅小区，或者，所述目标服务小区为已激活的辅小区中的一个或多个辅小区；
    所述目标服务小区组包括的多个服务小区为已配置的辅小区中的多个辅小区，或者，所述目标服务小区组包括的多个服务小区为已激活的辅小区中的多个辅小区。
  11. 根据权利要求8-10任一项所述的终端设备，其特征在于，所述处理单元还用于：
    若所述Y个第一信号指示至少一个第一信息，确定所述至少一个第一信息中取值最小的第一信息有效；和/或，
    若所述Y个第一信号指示至少一个第二信息，确定所述至少一个第二信息中取值最小的第二信息有效；
    其中，所述第一信息用于指示PDCCH和所述PDCCH对应的物理下行共享信道PDSCH之间的时间间隔的最小可用值，所述第二信息用于指示PDCCH和所述PDCCH对应的物理上行共享信道PUSCH之间的时间间隔的最小可用值。
  12. 根据权利要求8-11任一项所述的终端设备，其特征在于，所述接收单元用于：
    在第一时间区间之前在第一带宽部分BWP接收所述Y个第一信号；
    所述处理单元还用于，若所述Y个第一信号中的至少两个第一信号分别指示所述终端设备从所述第一BWP切换到第二BWP和第三BWP，将所述第一BWP作为激活的BWP；其中，所述第二BWP与所述第三BWP不同。
  13. 根据权利要求8-12任一项所述的终端设备，其特征在于，所述接收单元还用于：
    若所述Y个第一信号中的至少一个第一信号包括触发信息，所述至少一个第一信号中的每个第一信号包括的触发信息用于指示一个或多个非周期性信道状态信息参考信号A-CSI-RS的位置信息，根据每个第一信号包括的所述触发信号指示的一个或多个A-CSI-RS的位置信息接收所述一个或多个A-CSI-RS。
  14. 根据权利要求8-13任一项所述的终端设备，其特征在于，所述处理单元还用于：
    若所述Y个第一信号指示至少一个第三信息，确定所述至少一个第三信息中取值最大的第三信息有效；
    其中，所述第三信息用于指示最大多输入多输出MIMO层的数目。
  15. 一种通信装置，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器中存储有指令，所述处理器调用并执行所述指令时，使所述通信装置执行权利要求1至7中任一项所述的信号传输方法。
  16. 一种计算机可读存储介质，其特征在于，包括指令，当其在计算机上运行时，使得计算机执行权利要求1至7中任一项所述的信号传输方法。
  17. 一种计算机程序产品，其特征在于，当所述计算机程序产品在计算机上运行时， 使得所述计算机执行权利要求1至7中任一项所述的信号传输方法。
  18. 一种芯片系统，其特征在于，包括存储器，所述存储器存储计算机执行指令，当所述计算机执行指令在计算机上运行时，使得计算机执行权利要求1至7中任一项所述的信号传输方法。
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109496446A (zh) * 2018-10-19 2019-03-19 北京小米移动软件有限公司 信道监听方法及装置
CN109661021A (zh) * 2018-11-26 2019-04-19 北京邮电大学 一种复用唤醒信号的方法
CN110167128A (zh) * 2018-02-12 2019-08-23 维沃移动通信有限公司 信息检测方法、传输方法、终端及网络设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9036498B2 (en) * 2012-02-28 2015-05-19 Marvell International Ltd. Mitigation of false PDCCH detection
US9585091B2 (en) * 2012-08-17 2017-02-28 Qualcomm Incorporated Systems and methods for low power wake up signal and operations for WLAN
EP2941913B1 (en) * 2013-01-03 2017-08-23 Intel Corporation Apparatus and method for control channel monitoring in a new carrier type (nct) wireless network
US10362571B2 (en) * 2016-11-04 2019-07-23 Qualcomm Incorporated Power control and triggering of sounding reference signal on multiple component carriers
WO2018139967A1 (en) * 2017-01-24 2018-08-02 Telefonaktiebolaget Lm Ericsson (Publ) Wake-up signal transmission
US10542491B2 (en) * 2017-03-17 2020-01-21 Qualcomm Incorporated Techniques and apparatuses for control channel monitoring using a wakeup signal
JP6882475B2 (ja) * 2017-03-24 2021-06-02 エルジー エレクトロニクス インコーポレイティド ページングメッセージを受信する方法及び無線機器
CN109219113B (zh) * 2017-07-05 2020-07-17 维沃移动通信有限公司 一种盲检测方法、信号发送方法、相关设备和系统
US10869268B2 (en) * 2018-01-19 2020-12-15 Mediatek Inc. NR power saving enhancements
WO2019232807A1 (zh) * 2018-06-08 2019-12-12 北京小米移动软件有限公司 下行控制信令检测方法、装置及存储介质
CN113473581A (zh) * 2018-08-10 2021-10-01 华为技术有限公司 监测信号的方法和装置
EP3855631A4 (en) * 2018-09-21 2022-05-04 Beijing Xiaomi Mobile Software Co., Ltd. METHOD AND APPARATUS FOR SWITCHING TRIGGER FOR PART OF BANDWIDTH, METHOD AND APPARATUS FOR CONFIGURING INFORMATION
CN109661004A (zh) * 2018-12-11 2019-04-19 深圳市联智物联网科技有限公司 一种利于无线终端节能的终端盘点系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110167128A (zh) * 2018-02-12 2019-08-23 维沃移动通信有限公司 信息检测方法、传输方法、终端及网络设备
CN109496446A (zh) * 2018-10-19 2019-03-19 北京小米移动软件有限公司 信道监听方法及装置
CN109661021A (zh) * 2018-11-26 2019-04-19 北京邮电大学 一种复用唤醒信号的方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CATT: "UE Power Saving Schemes with Power Saving Signal/Channel/Procedures", 3GPP DRAFT; R1-1810563, vol. RAN-WG1, 29 September 2018 (2018-09-29), Chengdu, China, pages 1 - 5, XP051517971 *
CATT: "UE Power Saving Schemes with Power Saving Signal/Channel/Procedures", 3GPP DRAFT; R1-1812642, vol. RAN WG1, 16 November 2018 (2018-11-16), Spokane USA, pages 1 - 10, XP051478884 *

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