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WO2020056752A1 - Procédé de surveillance de pdcch, appareil, dispositif et système - Google Patents

Procédé de surveillance de pdcch, appareil, dispositif et système Download PDF

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Publication number
WO2020056752A1
WO2020056752A1 PCT/CN2018/107079 CN2018107079W WO2020056752A1 WO 2020056752 A1 WO2020056752 A1 WO 2020056752A1 CN 2018107079 W CN2018107079 W CN 2018107079W WO 2020056752 A1 WO2020056752 A1 WO 2020056752A1
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WO
WIPO (PCT)
Prior art keywords
dci
time unit
pdcch monitoring
time
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/107079
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English (en)
Chinese (zh)
Inventor
林亚男
徐伟杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201880092873.6A priority Critical patent/CN112042143B/zh
Priority to PCT/CN2018/107079 priority patent/WO2020056752A1/fr
Priority to TW108133674A priority patent/TW202019214A/zh
Publication of WO2020056752A1 publication Critical patent/WO2020056752A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a PDCCH monitoring method, device, device, and system.
  • the terminal In the radio resource control (RRRC) connection state, the terminal needs to periodically monitor the access sent by the access network device to itself based on the configuration of the physical downlink control channel search space (Channel search space, PDCCH search space). Downlink control information (DCI).
  • RRRC radio resource control
  • the configuration of the terminal based on the PDCCH SearchSpace periodically monitors the PDCCH every several subframes, but the access network device actually sends DCI to the terminal on only a small number of PDCCH transmission slots, and the rest of the time is not targeted to the terminal. DCI, thus wasting the power consumption of the terminal.
  • how to optimize the PDCCH monitoring of the terminal and reduce the power waste in the process of receiving the PDCCH by the terminal is a direction for reducing the power consumption of the terminal.
  • the embodiments of the present application provide a method, an apparatus, a device, a system, and a storage medium for monitoring a PDCCH, which can solve the problem that a large amount of power consumption is wasted in a terminal in an RRC connection state in the related art.
  • the technical solution is as follows:
  • a method for monitoring a PDCCH includes:
  • the terminal determines the first PDCCH monitoring configuration and the second PDCCH monitoring configuration.
  • the monitoring period in the first PDCCH monitoring configuration is greater than the monitoring period in the second PDCCH monitoring configuration.
  • the terminal receives the DCI sent by the access network device. When the DCI meets the first When the first DCI is indicated, the terminal uses the first PDCCH monitoring configuration to perform PDCCH monitoring.
  • the first indication mode includes: the value of the designated information field in the DCI is a target value, and / or, the indication content of the designated information field is the target information content.
  • the first indication mode includes at least one of the following modes:
  • the value of the frequency domain resource allocation information field is the first target value; the value of the time domain resource allocation information field is the second target value; the data channel start time offset determined by the value of the time domain resource allocation information field is greater than Or equal to the third target value or empty; the duration of the data channel determined by the value of the time domain resource allocation information field is empty or less than or equal to the fourth target value; the data channel determined by the value of the time domain resource allocation information field
  • the start symbol position is greater than or equal to the fifth target value or empty; the value of the mixed automatic retransmission process information field value is the sixth target value.
  • the first target value is 0; and / or, the third target value is infinity; and / or, the fourth target value is 0; and / or, the fifth target value is included in a time unit.
  • the first indication mode includes: the format of the DCI is a target DCI format.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the meanings represented in the target DCI format and the non-target DCI format are different.
  • the method further includes: when the DCI is a second DCI complying with the second indication mode, the terminal adopts a second PDCCH monitoring configuration for PDCCH monitoring.
  • the second indication mode includes: the value of the specified information field in the DCI is not the target value, and / or, the indication content of the specified information field is not the target information content.
  • the terminal receives the DCI sent by the access network device.
  • the terminal uses the first PDCCH monitoring configuration to perform PDCCH monitoring, including:
  • the terminal receives the first DCI sent by the access network device in time unit n; the terminal uses the first PDCCH monitoring configuration for PDCCH monitoring starting from time unit n + k; where k is a non-negative integer and k is a preset value, or The time unit n + k is determined according to the first PDCCH monitoring configuration.
  • the time unit n + k is the closest listening time unit after the time unit n in the at least one first candidate time unit; the at least one first candidate time unit is determined according to the first PDCCH monitoring configuration; Alternatively, the time unit n + k is a time unit in which at least one first candidate listening time position is located closest to the first listening time position after the first listening time position; at least one first candidate listening time position is monitoring according to the first PDCCH The configuration is determined; the first listening time position is the listening time position at which the first DCI was received.
  • the terminal when the DCI is a second DCI complying with the second indication mode, the terminal adopts a second PDCCH monitoring configuration to perform PDCCH monitoring, including:
  • the terminal receives the second DCI sent by the access network device in time unit m; the terminal uses the second PDCCH monitoring configuration for PDCCH monitoring starting from time unit m + 1, where l is a non-negative integer and l is a preset value, or The time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • the time unit m + 1 is the closest listening time unit after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration; Alternatively, the time unit m + 1 is a time unit where the nearest listening time position after the second monitoring time position is located among the at least one second candidate monitoring time position; at least one second candidate monitoring time position is monitoring according to the second PDCCH. The configuration is determined; the second listening time position is the listening time position where the second DCI is received.
  • the time unit is a time slot.
  • a PDCCH monitoring method includes:
  • the access network device determines the first PDCCH monitoring configuration and the second PDCCH monitoring configuration.
  • the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration.
  • the access network device sends DCI to the terminal. When the first DCI is indicated, the DCI is used to instruct the terminal to adopt the first PDCCH monitoring configuration.
  • the first indication mode includes: the value of the designated information field in the DCI is a target value, and / or, the indication content of the designated information field is the target information content.
  • the first indication mode includes at least one of the following modes:
  • the value of the frequency domain resource allocation information field is the first target value; the value of the time domain resource allocation information field is the second target value; the data channel start time offset determined by the value of the time domain resource allocation information field is greater than Or equal to the third target value or empty; the duration of the data channel determined by the value of the time domain resource allocation information field is empty or less than or equal to the fourth target value; the data channel determined by the value of the time domain resource allocation information field
  • the start symbol position is greater than or equal to the fifth target value or empty; the value of the mixed automatic retransmission process information field value is the sixth target value.
  • the first target value is 0; and / or, the third target value is infinity; and / or, the fourth target value is 0; and / or, the fifth target value is included in a time unit.
  • the first indication mode includes: the format of the DCI is a target DCI format.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the meanings represented in the target DCI format and the non-target DCI format are different.
  • the method further includes:
  • the access network device sends a DCI to the terminal.
  • the DCI is a second DCI that complies with the second indication mode
  • the DCI is used to instruct the terminal to adopt the second PDCCH monitoring configuration.
  • the second indication mode includes: the value of the specified information field in the DCI is not the target value, and / or, the indication content of the specified information field is not the target information content.
  • sending the DCI to the terminal by the access network device includes:
  • the access network device sends a first DCI to the terminal in time unit n; the first DCI is used to instruct the terminal to use the first PDCCH monitoring configuration for PDCCH monitoring starting from time unit n + k; where k is a non-negative integer and k is The preset value or the time unit n + k is determined according to the first PDCCH monitoring configuration.
  • the time unit n + k is the latest listening time unit located after the time unit n in the at least one first candidate time unit; the at least one first candidate time unit is determined according to the first PDCCH monitoring configuration; or , The time unit n + k is a time unit in which at least one of the first candidate listening time positions is located closest to the first listening time position; the at least one first candidate listening time position is determined according to the first PDCCH monitoring configuration Yes; the first listening time position is the listening time position at which the first DCI was received.
  • sending the DCI to the terminal by the access network device includes:
  • the access network device sends a second DCI to the terminal in time unit m; the second DCI is used to instruct the terminal to use the second PDCCH monitoring configuration for PDCCH monitoring starting from time unit m + 1; where l is a non-negative integer and l is The preset value or the time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • the time unit m + 1 is the latest listening time unit after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration; or The time unit m + 1 is the time unit where the nearest listening time position is located after the second monitoring time position among the at least one second candidate monitoring time position; the at least one second candidate monitoring time position is determined according to the second PDCCH monitoring configuration Yes; the second listening time position is the listening time position where the second DCI was received.
  • the time unit is a time slot.
  • a PDCCH monitoring device includes:
  • the first indication mode includes: the value of the designated information field in the DCI is a target value, and / or, the indication content of the designated information field is the target information content.
  • the first indication mode includes at least one of the following modes:
  • the value of the frequency domain resource allocation information field is the first target value; the value of the time domain resource allocation information field is the second target value; the data channel start time offset determined by the value of the time domain resource allocation information field is greater than Or equal to the third target value or empty; the duration of the data channel determined by the value of the time domain resource allocation information field is empty or less than or equal to the fourth target value; the data channel determined by the value of the time domain resource allocation information field
  • the start symbol position is greater than or equal to the fifth target value or empty; the value of the mixed automatic retransmission process information field value is the sixth target value.
  • the first target value is 0; and / or, the third target value is infinity; and / or, the fourth target value is 0; and / or, the fifth target value is included in a time unit.
  • the first indication mode includes: the format of the DCI is a target DCI format.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the meanings represented in the target DCI format and the non-target DCI format are different.
  • the apparatus further includes:
  • a processing module configured to: when the DCI is a second DCI that complies with the second indication mode, the terminal uses the second PDCCH monitoring configuration to perform PDCCH monitoring.
  • the second indication mode includes: the value of the specified information field in the DCI is not the target value, and / or, the indication content of the specified information field is not the target information content.
  • a receiving module is used for the terminal to receive the first DCI sent by the access network device in time unit n; a processing module is used for the terminal to use the first PDCCH monitoring configuration for PDCCH monitoring starting from time unit n + k Where k is a non-negative integer, k is a preset value, or the time unit n + k is determined according to the first PDCCH monitoring configuration.
  • the time unit n + k is the latest listening time unit located after the time unit n in the at least one first candidate time unit; the at least one first candidate time unit is determined according to the first PDCCH monitoring configuration; or , The time unit n + k is a time unit in which at least one of the first candidate listening time positions is located closest to the first listening time position; the at least one first candidate listening time position is determined according to the first PDCCH monitoring configuration Yes; the first listening time position is the listening time position at which the first DCI was received.
  • the receiving module is used for the terminal to receive the second DCI sent by the access network device in time unit m; the processing module is used for the terminal to use the second PDCCH monitoring configuration for PDCCH monitoring starting from time unit m + 1
  • l is a non-negative integer
  • l is a preset value
  • the time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • the time unit m + 1 is the latest listening time unit after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration; or The time unit m + 1 is the time unit where the nearest listening time position is located after the second monitoring time position among the at least one second candidate monitoring time position; the at least one second candidate monitoring time position is determined according to the second PDCCH monitoring configuration Yes; the second listening time position is the listening time position where the second DCI was received.
  • the time unit is a time slot.
  • a PDCCH monitoring device includes:
  • the processing module is configured to determine the first PDCCH monitoring configuration and the second PDCCH monitoring configuration by the access network device.
  • the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration.
  • the terminal sends DCI. When the DCI is the first DCI that conforms to the first indication mode, the DCI is used to instruct the terminal to adopt the first PDCCH monitoring configuration.
  • the first indication mode includes: the value of the designated information field in the DCI is a target value, and / or, the indication content of the designated information field is the target information content.
  • the first indication mode includes at least one of the following modes:
  • the value of the frequency domain resource allocation information field is the first target value; the value of the time domain resource allocation information field is the second target value; the data channel start time offset determined by the value of the time domain resource allocation information field is greater than Or equal to the third target value or empty; the duration of the data channel determined by the value of the time domain resource allocation information field is empty or less than or equal to the fourth target value; the data channel determined by the value of the time domain resource allocation information field
  • the start symbol position is greater than or equal to the fifth target value or empty; the value of the mixed automatic retransmission process information field value is the sixth target value.
  • the first target value is 0; and / or, the third target value is infinity; and / or, the fourth target value is 0; and / or, the fifth target value is included in a time unit.
  • the first indication mode includes: the format of the DCI is a target DCI format.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the meanings represented in the target DCI format and the non-target DCI format are different.
  • the apparatus further includes:
  • a sending module is used for the access network device to send DCI to the terminal.
  • the DCI is a second DCI that conforms to the second indication mode
  • the DCI is used to instruct the terminal to adopt the second PDCCH monitoring configuration.
  • the second indication mode includes: the value of the specified information field in the DCI is not the target value, and / or, the indication content of the specified information field is not the target information content.
  • a sending module is used for the access network device to send the first DCI to the terminal in the time unit n; the first DCI is used to instruct the terminal to use the first PDCCH monitoring configuration for PDCCH monitoring starting from the time unit n + k Where k is a non-negative integer, k is a preset value, or the time unit n + k is determined according to the first PDCCH monitoring configuration.
  • the time unit n + k is the latest listening time unit located after the time unit n in the at least one first candidate time unit; the at least one first candidate time unit is determined according to the first PDCCH monitoring configuration; or , The time unit n + k is a time unit in which at least one of the first candidate listening time positions is located closest to the first listening time position; the at least one first candidate listening time position is determined according to the first PDCCH monitoring configuration Yes; the first listening time position is the listening time position at which the first DCI was received.
  • sending the DCI to the terminal by the access network device includes:
  • the access network device sends a second DCI to the terminal in time unit m; the second DCI is used to instruct the terminal to use the second PDCCH monitoring configuration for PDCCH monitoring starting from time unit m + 1; where l is a non-negative integer and l is The preset value or the time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • the time unit m + 1 is the latest listening time unit after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration; or The time unit m + 1 is the time unit where the nearest listening time position is located after the second monitoring time position among the at least one second candidate monitoring time position; the at least one second candidate monitoring time position is determined according to the second PDCCH monitoring configuration Yes; the second listening time position is the listening time position where the second DCI was received.
  • the time unit is a time slot.
  • a terminal which is characterized in that the terminal includes a processor and a memory, and the memory stores at least one instruction, at least one program, code set, or instruction set, at least one instruction, at least one program , The code set or the instruction set is loaded and executed by the processor to implement the PDCCH monitoring method according to any one of the first aspect.
  • a computer-readable storage medium characterized in that the readable storage medium stores at least one instruction, at least one program, code set or instruction set, at least one instruction, at least one program , The code set or the instruction set is loaded and executed by the processor to implement the PDCCH monitoring method according to any one of the first aspect.
  • the monitoring period of the first PDCCH monitoring configuration is greater than that of the second PDCCH monitoring configuration; the terminal receives the access network device to send DCI; when the DCI is the first During a DCI, the terminal uses the first PDCCH monitoring configuration for PDCCH monitoring. Because the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration, compared to the second PDCCH monitoring configuration, the The monitoring frequency is reduced, thereby reducing the power waste of the terminal in receiving the PDCCH in the second PDCCH monitoring configuration, and reducing the power consumption of the terminal.
  • the monitoring period of the second PDCCH monitoring configuration is a normal monitoring period in which the terminal monitors the PDCCH.
  • the first PDCCH monitoring configuration in which the monitoring period is greater than the original monitoring period is used, so that the terminal performs
  • the reduction of the monitoring frequency for monitoring can reduce the power waste in the process of receiving the PDCCH by the terminal, and reduce the power consumption of the terminal.
  • FIG. 1 is a schematic diagram of a mobile communication system provided by a related technology
  • FIG. 2 is a flowchart of a PDCCH monitoring method according to an exemplary embodiment of the present application
  • 3 is a schematic diagram of time-frequency resource division provided by related technologies
  • FIG. 4 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 5 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 6 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 7 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 8 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 9 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 10 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • FIG. 11 is a block diagram of a PDCCH monitoring device according to an exemplary embodiment of the present application.
  • FIG. 12 is a block diagram of a PDCCH monitoring apparatus according to another exemplary embodiment of the present application.
  • FIG. 13 is a block diagram of a PDCCH monitoring device according to another exemplary embodiment of the present application.
  • FIG. 14 is a block diagram of a PDCCH monitoring apparatus according to another exemplary embodiment of the present application.
  • FIG. 1 is a schematic diagram of an implementation environment of a method for monitoring a physical downlink control channel provided by an exemplary embodiment of the present application.
  • the implementation environment may include a user equipment 140 and an access network device 120.
  • the access network device 120 includes at least one base station (only one base station is shown in FIG. 1).
  • at least one base station may be a macro base station or a micro base station.
  • the user equipment 140 performs data transmission on the PUSCN according to the second DCI sent by the access network device 120; the second DCI is used to schedule an effective PUSCN.
  • the access network device 120 sends the first DCI to the user equipment 140, and the user equipment 140 receives the first DCI sent by the access network device 120 and uses the first PDCCH monitoring configuration to monitor according to the first DCI; or
  • the access network device 120 sends a second DCI to the user equipment, and the user equipment 140 receives the second DCI sent by the access network device 120, and monitors using the second PDCCH monitoring configuration according to the second DCI.
  • the user equipment 140 may be a mobile terminal, such as a mobile phone (also referred to as a “cellular” phone) and a device with mobile communication capabilities.
  • the user equipment 140 may be portable, compact, handheld, and built-in computer Or a vehicle-mounted mobile terminal.
  • the user equipment 140 may have different names in different mobile communication networks. For example: Mobile Station (Mobile Station), Mobile Station (Mobile), Access Terminal (Access Terminal), User Device (User Terminal), User Agent (User Agent), User Terminal (User Equipment).
  • the access network device can pre-configure up to 16 types of time-frequency resources for PDSCH and PUSCH through high-level signaling (system broadcast or RRC dedicated signaling), each time-frequency resource including the data channel start Time offset (K 0 or K 2 ), start symbol S, and length L.
  • K 0 is the PDSCH start time offset
  • K 2 is the PUSCH start time offset.
  • the access network device also provides the terminal with two different PDCCH monitoring configurations, and uses DCI to implicitly trigger the terminal between the two PDCCH monitoring modes. Make the switch.
  • the DCI for triggering the monitoring mode switching includes: a first DCI conforming to the first indication mode and a second DCI conforming to the second indication mode.
  • the first DCI is used to instruct the terminal to use the first PDCCH monitoring configuration for PDCCH monitoring;
  • the second DCI is used to instruct the terminal to use the second PDCCH monitoring configuration for PDCCH monitoring.
  • FIG. 2 is a flowchart of a PDCCH monitoring method provided by an exemplary embodiment of the present application. The method is applied to the implementation environment shown in FIG. 1 as an example. The method may include:
  • Step 201 The access network device determines a first PDCCH monitoring configuration and a second PDCCH monitoring configuration.
  • the monitoring period configured for the first PDCCH monitoring is greater than the monitoring period configured for the second PDCCH monitoring.
  • the monitoring period of the first PDCCH monitoring configuration is equal to i times the monitoring period of the second PDCCH monitoring configuration, and i is a positive integer greater than 1.
  • the first PDCCH monitoring configuration and the second PDCCH monitoring configuration are pre-determined in a communication protocol.
  • the first PDCCH monitoring configuration and the second PDCCH monitoring configuration are pre-configured by an access network device.
  • the access network device notifies the terminal of the dynamically determined first PDCCH monitoring configuration and the second PDCCH monitoring configuration.
  • the access network device notifies the terminal of the first PDCCH monitoring configuration and the second PDCCH monitoring configuration through a system broadcast; or, the access network device determines the first PDCCH monitoring configuration and the second through the RRC dedicated signaling to the terminal. PDCCH monitoring configuration.
  • the first PDCCH monitoring configuration is pre-configured by the access network device, and the second PDCCH monitoring configuration is predefined in the communication protocol.
  • the access network device notifies the terminal of the first PDCCH monitoring configuration through a system broadcast; or, the access network device determines the first PDCCH monitoring configuration from the terminal through RRC dedicated signaling.
  • Step 202 The terminal determines a first PDCCH monitoring configuration and a second PDCCH monitoring configuration.
  • the first PDCCH monitoring configuration and the second PDCCH monitoring configuration are predefined in a communication protocol.
  • the terminal receives the broadcast or RRC dedicated signaling sent by the access network device to obtain the first PDCCH monitoring configuration and the second PDCCH monitoring configuration.
  • the configuration time of the two monitoring configurations can be the same or different.
  • the terminal receives a pre-configured first PDCCH monitoring configuration sent by an access network device, and the terminal obtains a second predefined PDCCH monitoring configuration in a communication protocol.
  • the terminal uses the second PDCCH monitoring configuration for monitoring in the initial state.
  • Step 203 The access network device sends DCI to the terminal.
  • the DCI is used by the terminal to schedule time-frequency resources, and the time-frequency resources include frequency domain resources and / or time domain resources.
  • the DCI is used to indicate the time-frequency resources used this time from the 16 pre-configured time-frequency resources.
  • the two-dimensional space represents time-frequency resources, the abscissa represents the time domain, and the ordinate represents the frequency domain.
  • the frequency domain can be divided according to a physical resource block (PRB).
  • PRB physical resource block
  • the area indicated by the black wire frame is 1 PRB, and each PRB includes 12
  • Sub-carriers such as sub-carrier 1 to sub-carrier 12
  • the time domain can be divided according to sub-frames, each sub-frame includes two slots: time slot 0 and time slot 1, each time slot includes 7 symbols
  • time slot 0 includes symbols 0 to 6; time slot 0 and time slot 1 are one subframe.
  • One subframe can be regarded as one time unit; or one slot can be regarded as one time unit; or one symbol can be regarded as one time unit.
  • one time slot is regarded as one time unit for illustration.
  • the access network device sends DCI to the terminal using the PDCCH.
  • the DCI is a first DCI that conforms to the first indication mode.
  • the first DCI is used to schedule an invalid PDSCH or PUSCH, so as to implicitly instruct the terminal to use the first PDCCH configuration for PDCCH monitoring.
  • PDSCH is a shared channel where the access network device transmits data to the terminal in the downlink scenario
  • PUSCH is a shared channel where the terminal transmits data to the access network device in the uplink scenario.
  • Step 204 The terminal receives the DCI sent by the access network device.
  • the terminal receives the DCI sent by the access network device on the PDCCH channel. Then, the terminal detects whether the DCI received this time is the first DCI according to the type of the DCI indication mode.
  • Step 205 When the DCI is the first DCI that conforms to the first indication mode, the terminal uses the first PDCCH monitoring configuration to perform PDCCH monitoring.
  • the first indication mode is an indication mode for scheduling an invalid PDSCH or PUSCH.
  • the first indication manner includes: the value of the specified information field in the DCI is a target value, and / or, the indication content of the specified information field is the target information content.
  • the specified information domain includes: a frequency domain resource assignment (Frequency domain resource assignment) information domain, a time domain resource assignment (Information domain) information domain, and a HARQ process number (HARQ process number) information domain. At least one.
  • the indication content of the specified information field includes: a data channel start time offset (K 0 or K 2 ), a data channel duration (L), and a data channel determined according to a value of the time domain resource allocation information field. At least one of the start symbol positions (S).
  • the first indication manner may include at least one of the following manners:
  • the value of the frequency domain resource allocation information field is the first target value, such as the first target value is 0; the time domain resource allocation information field is set to the second target value, such as the second target value is 0000 or 1111; the time domain The data channel start time offset (K 0 or K 2 ) determined by the value of the resource allocation information field is greater than or equal to the third target value or empty, for example, the third target value is infinite; in the time domain resource allocation information field, The duration of the data channel determined by the value is empty or less than or equal to the fourth target value, for example, the fourth target value is 0; the start position of the data channel determined by the value of the time domain resource allocation information field is greater than or equal to
  • the fifth target value may be empty. For example, when the number of symbols in a time unit is 14 and the number is from 0 to 13, the fifth target value is 13; the value of the hybrid automatic repeat process number information field is the sixth target. Value, such as the sixth target value is 0000 or 1111.
  • the first indication mode includes: a format of the DCI is a target DCI format.
  • the target DCI format is a subset of all DCI formats.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the PDCCH monitoring method determines the first PDCCH monitoring configuration and the second monitoring configuration.
  • the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration.
  • the terminal receives access.
  • Network equipment sends DCI; when DCI is the first DCI that conforms to the first indication mode, the terminal uses the first PDCCH monitoring configuration for PDCCH monitoring; since the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration, Compared with the second PDCCH monitoring configuration, the monitoring frequency in the first PDCCH monitoring configuration is reduced, thereby reducing the power waste of the terminal in receiving the PDCCH in the second PDCCH monitoring configuration, and reducing the power consumption of the terminal.
  • the second PDCCH monitoring configuration monitoring period is the original monitoring period when the terminal monitors the PDCCH.
  • the first PDCCH monitoring configuration with a monitoring period greater than the original monitoring period is used to enable the terminal to monitor the PDCCH.
  • the reduction of the monitoring frequency for monitoring can reduce the power waste in the process of receiving the PDCCH by the terminal, and reduce the power consumption of the terminal.
  • FIG. 4 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • step 203 is replaced with 2031
  • step 204 is replaced with 2041
  • steps 205 is replaced by 2051
  • the method may include the following working process:
  • Step 2031 The access network device sends the first DCI to the terminal in time unit n.
  • the time unit n includes at least one symbol, the symbol is a minimum unit of time-frequency resources, and n is a positive integer.
  • the time unit is a time slot.
  • a PDCCH channel exists in time unit n, and the access network device sends a first DCI to the terminal on the PDCCH channel.
  • the first DCI is used to schedule an invalid PDSCH or PUSCH, so as to trigger the terminal to use the first PDCCH monitoring configuration for subsequent monitoring.
  • the first indication mode includes: the value of the frequency domain resource allocation information domain is a first target value.
  • the frequency domain resource allocation information is location information of frequency domain resources allocated to the terminal for data transmission on the PDSCH or PUSCH indicated by the DCI.
  • the first target value is 0 and the value of the frequency domain resource allocation information field is 0, it may indicate that the frequency domain resources that are not allocated to the terminal for data transmission on the PDSCH or PUSCH are an invalid frequency domain scheduling method. .
  • the first indication mode includes: the value of the time domain resource allocation information field is a second target value.
  • the frequency domain resource allocation information is location information of time domain resources used by the terminal for data transmission on the PDSCH or PUSCH indicated by the DCI.
  • the second target value (4 bits of information) is binary 0000 or 1111, which belongs to an invalid time domain scheduling mode.
  • the time domain resource allocation information domain can allocate up to 14 groups of symbols, the first group is marked as 0, and the fourteenth group is marked as 13.
  • a time domain resource allocation information field includes S and L indicators SLIV.
  • the terminal can determine S and L by SLIV according to the S / L / SLIV relationship table, where S is the data channel start symbol and L is the starting point of S. Data channel duration.
  • S the data channel start symbol
  • L the starting point of S.
  • the first indication mode includes: a data channel start time offset determined by a value of a time domain resource allocation information domain is greater than or equal to a third target value or null.
  • the third target value is infinity or 0, it belongs to an invalid time domain scheduling mode.
  • the first indication mode includes: the data channel duration determined by the value of the time domain resource allocation information field is empty or less than or equal to a fourth target value.
  • the fourth target value is less than 0 or equal to 0, it belongs to an invalid time domain scheduling mode; when the data channel duration is empty, it also belongs to an invalid time domain scheduling mode.
  • the first indication mode includes: a data channel start symbol position determined by a value of a time domain resource allocation information field is greater than or equal to a fifth target value or null.
  • the fifth target value is the maximum number of time-domain symbols included in a time unit. Taking a subframe including 14 symbols (numbers 0 to 13) as an example, the position of the start symbol of the data channel is greater than or equal to 13 Or empty, it is an invalid time domain scheduling mode.
  • the first indication mode includes: the value of the HARQ process quantity information field is a sixth target value.
  • the value of the field of the number of hybrid automatic retransmission processes is binary 0000 or 1111, which may indicate that no time domain resources are allocated to the terminal for data retransmission on the PDSCH or PUSCH, which is an invalid time domain scheduling method. .
  • the first indication manner further includes: the DCI format is a target DCI format, and the target DCI format is a true subset of all DCI formats.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the first indication mode is an invalid scheduling mode for PDSCH or PUSCH, and the foregoing various invalid scheduling modes can be arbitrarily combined, which is not limited in this embodiment.
  • Step 2041 The terminal receives the first DCI sent by the access network device in the time unit n.
  • the terminal receives DCI in the PDCCH in time unit n.
  • the CRC of the DCI is scrambled using a terminal's Cell-Radio-Network Temporaty Identifier (C-RNTI), and the terminal uses its own C-RNTI to scramble the DCI.
  • C-RNTI Cell-Radio-Network Temporaty Identifier
  • the CRC is descrambled in order to obtain various information fields in the DCI.
  • the terminal determines that the DCI is the first DCI, and proceeds to step 2051.
  • Step 2051 The terminal uses the first PDCCH monitoring configuration to perform PDCCH monitoring starting from time unit n + k.
  • k is a non-negative integer, k is a preset value, or the time unit n + k is determined according to the first PDCCH monitoring configuration.
  • k is a preset value of the terminal.
  • time unit n + k is a time unit spaced by k time intervals after time unit n.
  • k is 0.
  • the terminal when the terminal receives the first DCI sent by the access network device on time unit 2, it starts from time unit 2 to switch from the second PDCCH monitoring configuration to the first PDCCH monitoring configuration to monitor.
  • the monitoring period of the first PDCCH monitoring mode is T2
  • the monitoring period of the second PDCCH monitoring mode is T1 is less than T2.
  • the time unit n + k is the latest listening time unit after the time unit n in the at least one first candidate time unit; at least one first candidate time unit is determined according to the first PDCCH monitoring configuration.
  • the terminal monitors using the second PDCCH monitoring configuration before receiving the first DCI, and monitors the first DCI on time unit 15, and the terminal will start from the second on time unit 16
  • the PDCCH monitoring configuration is switched to the first PDCCH monitoring configuration for monitoring, and the monitoring period T4 is determined according to the first PDCCH monitoring configuration.
  • time units 11 to 15 are determined according to the second PDCCH monitoring configuration.
  • Each monitoring time unit, time units 16 to 18 are each monitoring time unit determined according to the first PDCCH monitoring configuration.
  • time units 16 to 18 are the first candidate time units, where time unit 16 is the most recent time unit after time unit 15, so it is determined that the first DCI is adopted from time unit 16.
  • the PDCCH monitoring configuration performs PDCCH monitoring.
  • the time unit n + k is at least one of the first candidate monitoring time positions and is located at the first monitoring position.
  • the candidate listening time position is determined in units of symbols, the time unit is determined in time slot units, and the same time slot may include listening time positions located in more than two different symbols.
  • one time unit may include more than two listening time positions.
  • the time unit 01 corresponding to the second PDCCH monitoring configuration includes two monitoring time positions, which are monitoring time position 1 and monitoring time position 2 in chronological order.
  • the terminal receives the first DCI at the monitoring time position 1, and switches from the second PDCCH monitoring configuration to the first PDCCH monitoring configuration.
  • the monitoring time position in the monitoring period of the first PDCCH monitoring configuration is the closest monitoring time position to the monitoring time position 1. If the listening time position is 2, it is determined that the first PDCCH monitoring configuration is used for PDCCH monitoring starting from time unit 01. Alternatively, the terminal receives the first DCI at the listening time position 2.
  • the listening time position 3 is the time unit 02 in the monitoring period of the first PDCCH monitoring configuration. Monitoring time position, it is determined that the first PDCCH monitoring configuration is used for PDCCH monitoring starting from time unit 02.
  • the terminal by determining the first PDCCH monitoring configuration and the second monitoring configuration, the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration; the terminal receives the access network device and sends DCI; when DCI is the first DCI that conforms to the first indication mode, the terminal uses the first PDCCH monitoring configuration for PDCCH monitoring; since the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration, In the second PDCCH monitoring configuration, the monitoring frequency in the first PDCCH monitoring configuration is reduced, thereby reducing the power waste of the terminal in receiving the PDCCH in the second PDCCH monitoring configuration, and reducing the power consumption of the terminal.
  • the second PDCCH monitoring configuration monitoring period is the original monitoring period when the terminal monitors the PDCCH.
  • the first PDCCH monitoring configuration with a monitoring period greater than the original monitoring period is used to enable the terminal to monitor the PDCCH.
  • the reduction of the monitoring frequency for monitoring can reduce the power waste in the process of receiving the PDCCH by the terminal, and reduce the power consumption of the terminal.
  • FIG. 7 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application. The method is applied to the implementation environment shown in FIG. 1 as an example. It should be noted that based on FIG. 2, step 205 is performed. Replace it with step 206, and describe in detail that the terminal adopts the second PDCCH monitoring configuration when the DCI is the second DCI.
  • the specific steps are as follows:
  • Step 206 When the DCI is a second DCI that complies with the second indication mode, the terminal uses the second PDCCH monitoring configuration to perform PDCCH monitoring.
  • the second indication mode is an indication mode for scheduling an effective PDSCH or PUSCH.
  • the second indication mode includes: the value of the designated information field in the DCI is not the target value, and / or, the indication content of the designated information field is not the target information content.
  • the terminal can obtain effective time-frequency resources through the second DCI.
  • the second indication manner may include at least one of the following manners:
  • the value of the frequency domain resource allocation information field is an integer greater than 0; the value of the time domain resource allocation information field (4 bits of information) is a binary value corresponding to a decimal number from 1 to 14, and the above 14 values correspond to a time slot in turn. 14 symbols; data channel start time offset (K 0 or K 2 ) determined by the value of the time domain resource allocation information field is a fixed value; data channel determined by the value of the time domain resource allocation information field The duration is non-empty and greater than 0; the number of symbols at the beginning of the data channel determined by the value of the time domain resource allocation information field is not empty and belongs to a number of symbols in a time unit.
  • the value of the HARQ process quantity information field (4-bit information) is a binary value corresponding to the decimal number 1 to 14.
  • the second indication mode includes: the format of the DCI is a DCI format other than the target DCI format.
  • the DCI format included in the second indication mode is not any one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the second PDCCH monitoring configuration is used for PDCCH monitoring.
  • FIG. 8 is a flowchart of a PDCCH monitoring method according to another exemplary embodiment of the present application.
  • step 203 is replaced by step 2032
  • step 204 is replaced by 2042
  • step 206 is replaced.
  • 2061 when the DCI is the second DCI, the terminal adopts the second PDCCH monitoring configuration for detailed description. The specific steps are as follows:
  • Step 2032 The access network device sends the second DCI to the terminal in the time unit m.
  • the time unit m includes at least one symbol, and m is a positive integer.
  • the time unit is a time slot.
  • a PDCCH channel exists in time unit m, and the access network device sends a second DCI to the terminal on the PDCCH channel, and the second DCI is used to schedule an effective PDSCH or PUSCH, so as to trigger the terminal to use the second PDCCH monitoring configuration for subsequent monitoring.
  • the second DCI conforms to the second indication mode.
  • the second indication mode includes: the frequency domain resource allocation information domain takes an integer greater than 0; for example, a value of 1, or 2 or 4 belongs to an effective frequency domain scheduling mode.
  • the second indication method includes: the value of the time domain resource allocation information field (4 bits of information) is a binary value corresponding to a decimal number from 1 to 14; the above 14 values correspond to 14 symbols of a time slot in turn
  • the value can be any of 0001, 0010, 0011, 0100, 0101, 0110, 0111, 1000, 1001, 1010, 1011, 1100, 1101, and 1110, which is an effective time-domain scheduling method.
  • the second indication mode includes: the data channel start time offset (K 0 or K 2 ) determined by the value of the time domain resource allocation information field is a fixed value; for example, the data channel start time The offset (K 0 or K 2 ) has a value of 1, which is an effective time-domain scheduling method.
  • the second indication method includes: the data channel duration determined by the value of the time domain resource allocation information field is non-empty and greater than 0; for example, the data channel duration is 1, which belongs to effective time domain scheduling the way.
  • the second indication mode includes: a data channel start symbol position determined by a value of a time domain resource allocation information field is not empty and a number of symbols belonging to a time unit; for example, when within a time unit When the number of symbols is 14 and the number is from 0 to 13, the starting symbol position of the data channel belongs to 0 to 13, which belongs to an effective time-domain scheduling method.
  • the second indication method includes: the value of the HARQ process quantity information field (4 bits of information) is a binary value corresponding to a decimal number from 1 to 14; for example, the HARQ process quantity information field has values of 0001, 0010, Any one of 0011, 0100, 0101, 0110, 0111, 1000, 1001, 1010, 1011, 1100, 1101, and 1110 belongs to an effective time domain scheduling method.
  • Step 2042 The terminal receives the second DCI sent by the access network device in the time unit m.
  • Step 2061 The terminal uses the second PDCCH monitoring configuration to perform PDCCH monitoring starting from time unit m + 1.
  • the time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • l is a preset value of the terminal.
  • time unit m + 1 is a time unit spaced by one time interval after time unit m.
  • l is 0.
  • the terminal receives the second DCI sent by the access network device at time unit 7, and starts from time unit 7 to switch from the first PDCCH monitoring configuration to the second PDCCH monitoring configuration for monitoring.
  • the monitoring period configured for PDCCH monitoring is T6, the monitoring period configured for the first PDCCH monitoring is T5, and T6 is less than T5.
  • the time unit m + 1 is the latest listening time unit located after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration;
  • time units 21 to 23 are monitoring time units determined according to the first PDCCH monitoring configuration, and time units 24 to 28 are based on The listening time unit determined by the second PDCCH monitoring configuration.
  • time units 24 to 28 are second candidate time units, where time unit 24 is the latest time after time unit 23. Unit, it is determined that the second PDCCH monitoring configuration is used for PDCCH monitoring starting from time unit 24.
  • the time unit m + 1 is at least one second candidate monitoring time position located at the second monitoring position.
  • the time unit where the last listening time position after the time position is; at least one second candidate monitoring time position is determined according to the second PDCCH monitoring configuration; the second monitoring time position is the monitoring time position at which the second DCI was received.
  • the candidate listening time position is determined in units of symbols
  • the time unit is determined in time slot units
  • the same time slot may include listening time positions located in more than two different symbols.
  • one time unit may include more than two listening time positions.
  • time unit 03 corresponding to the second PDCCH monitoring configuration includes two monitoring time positions, which are monitoring time position 4 and monitoring time position 5 in chronological order.
  • the terminal receives the second DCI at monitoring time position 4, and switches from the first PDCCH monitoring configuration to the second PDCCH monitoring configuration.
  • the monitoring time position is closest to the monitoring time position 4. If the listening time position is 5, it is determined that the second PDCCH monitoring configuration is used for PDCCH monitoring starting from time unit 03.
  • the terminal receives the second DCI at the monitoring time position 5, and switches from the first PDCCH monitoring configuration to the second monitoring configuration.
  • the monitoring time position closest to the monitoring time position 5 is the monitoring time position 6, and the monitoring time position 6 is the first.
  • the monitoring time position in time unit 04 is determined to use the second PDCCH monitoring configuration for PDCCH monitoring starting from time unit 04.
  • FIG. 11 is a block diagram of a PDCCH monitoring device provided by an exemplary embodiment of the present application.
  • the device may be implemented as all or a part of a terminal through software, hardware, or a combination of both.
  • the device includes:
  • a processing module 301 is configured to determine a first PDCCH monitoring configuration and a second PDCCH monitoring configuration, and a monitoring period in the first PDCCH monitoring configuration is greater than a monitoring period in the second PDCCH monitoring configuration;
  • a receiving module 302 configured to receive, by a terminal, DCI sent by an access network device
  • the processing module 301 is configured to: when the DCI is the first DCI complying with the first indication mode, the terminal uses the first PDCCH monitoring configuration to perform PDCCH monitoring.
  • the first indication mode includes: the value of the designated information field in the DCI is a target value, and / or, the indication content of the designated information field is the target information content.
  • the first indication mode includes at least one of the following modes:
  • the value of the frequency domain resource allocation information field is the first target value; the value of the time domain resource allocation information field is the second target value; the data channel start time offset determined by the value of the time domain resource allocation information field is greater than Or equal to the third target value or empty; the duration of the data channel determined by the value of the time domain resource allocation information field is empty or less than or equal to the fourth target value; the data channel determined by the value of the time domain resource allocation information field
  • the start symbol position is greater than or equal to the fifth target value or empty; the value of the mixed automatic retransmission process information field value is the sixth target value.
  • the first target value is 0; and / or, the third target value is infinity; and / or, the fourth target value is 0; and / or, the fifth target value is included in a time unit.
  • the first indication mode includes: the format of the DCI is a target DCI format.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the meanings represented in the target DCI format and the non-target DCI format are different.
  • the apparatus further includes:
  • the processing module 301 is configured to: when the DCI is a second DCI complying with the second indication mode, the terminal uses the second PDCCH monitoring configuration to perform PDCCH monitoring.
  • the second indication mode includes: the value of the specified information field in the DCI is not the target value, and / or, the indication content of the specified information field is not the target information content.
  • the receiving module 302 is used for the terminal to receive the first DCI sent by the access network device in the time unit n; the processing module 301 is used for the terminal to perform the first PDCCH monitoring configuration from the time unit n + k PDCCH monitoring; where k is a non-negative integer and k is a preset value, or the time unit n + k is determined according to the first PDCCH monitoring configuration.
  • the time unit n + k is the latest listening time unit located after the time unit n in the at least one first candidate time unit; the at least one first candidate time unit is determined according to the first PDCCH monitoring configuration; or , The time unit n + k is a time unit in which at least one of the first candidate listening time positions is located closest to the first listening time position; the at least one first candidate listening time position is determined according to the first PDCCH monitoring configuration Yes; the first listening time position is the listening time position at which the first DCI was received.
  • the receiving module 302 is used for the terminal to receive the second DCI sent by the access network device in the time unit m; the processing module 301 is used for the terminal to use the second PDCCH monitoring configuration starting from the time unit m + 1 PDCCH monitoring; where l is a non-negative integer and l is a preset value, or the time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • the time unit m + 1 is the latest listening time unit after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration; or The time unit m + 1 is the time unit where the nearest listening time position is located after the second monitoring time position among the at least one second candidate monitoring time position; the at least one second candidate monitoring time position is determined according to the second PDCCH monitoring configuration Yes; the second listening time position is the listening time position where the second DCI was received.
  • the time unit is a time slot.
  • the device provided in this embodiment determines the first PDCCH monitoring configuration and the second monitoring configuration, and the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration; the terminal receives the access network device and sends DCI; when DCI is the first DCI that conforms to the first indication mode, the terminal uses the first PDCCH monitoring configuration for PDCCH monitoring; since the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration, In the second PDCCH monitoring configuration, the monitoring frequency in the first PDCCH monitoring configuration is reduced, thereby reducing the power waste of the terminal in receiving the PDCCH in the second PDCCH monitoring configuration, and reducing the power consumption of the terminal.
  • the second PDCCH monitoring configuration monitoring period is the original monitoring period when the terminal monitors the PDCCH.
  • the first PDCCH monitoring configuration with a monitoring period greater than the original monitoring period is used to enable the terminal to monitor the PDCCH.
  • the reduction of the monitoring frequency for monitoring can reduce the power waste in the process of receiving the PDCCH by the terminal, and reduce the power consumption of the terminal.
  • FIG. 12 is a block diagram of a PDCCH monitoring apparatus according to another exemplary embodiment of the present application.
  • the apparatus may be implemented as all or part of an access network device through software, hardware, or a combination of the two.
  • the device includes:
  • a processing module 401 is configured for an access network device to determine a first PDCCH monitoring configuration and a second PDCCH monitoring configuration, where a monitoring period of the first PDCCH monitoring configuration is greater than a monitoring period of the second PDCCH monitoring configuration;
  • the sending module 402 is configured to send the DCI to the terminal by the access network device.
  • the DCI is the first DCI that conforms to the first indication mode
  • the DCI is used to instruct the terminal to adopt the first PDCCH monitoring configuration.
  • the first indication mode includes: the value of the designated information field in the DCI is a target value, and / or, the indication content of the designated information field is the target information content.
  • the first indication mode includes at least one of the following modes:
  • the value of the frequency domain resource allocation information field is the first target value; the value of the time domain resource allocation information field is the second target value; the data channel start time offset determined by the value of the time domain resource allocation information field is greater than Or equal to the third target value or empty; the duration of the data channel determined by the value of the time domain resource allocation information field is empty or less than or equal to the fourth target value; the data channel determined by the value of the time domain resource allocation information field
  • the start symbol position is greater than or equal to the fifth target value or empty; the value of the mixed automatic retransmission process information field value is the sixth target value.
  • the first target value is 0; and / or, the third target value is infinity; and / or, the fourth target value is 0; and / or, the fifth target value is included in a time unit.
  • the first indication mode includes: the format of the DCI is a target DCI format.
  • the target DCI format includes at least one of DCI format 0_0, DCI format 1_0, DCI format 0_1, and DCI format 1_1.
  • the meanings represented in the target DCI format and the non-target DCI format are different.
  • the apparatus further includes:
  • the sending module 402 is configured to send the DCI to the terminal by the access network device.
  • the DCI is the second DCI that complies with the second indication mode
  • the DCI is used to instruct the terminal to adopt the second PDCCH monitoring configuration.
  • the second indication mode includes: the value of the specified information field in the DCI is not the target value, and / or, the indication content of the specified information field is not the target information content.
  • the sending module 402 is configured for the access network device to send the first DCI to the terminal in the time unit n; the first DCI is used to instruct the terminal to use the first PDCCH monitoring configuration to perform the PDCCH from the time unit n + k. Monitoring; where k is a non-negative integer, k is a preset value, or the time unit n + k is determined according to the first PDCCH monitoring configuration.
  • the time unit n + k is the closest listening time unit after the time unit n in the at least one first candidate time unit; the at least one first candidate time unit is determined according to the first PDCCH monitoring configuration; Alternatively, the time unit n + k is a time unit in which at least one first candidate listening time position is located closest to the first listening time position after the first listening time position; at least one first candidate listening time position is monitoring according to the first PDCCH The configuration is determined; the first listening time position is the listening time position at which the first DCI was received.
  • sending the DCI to the terminal by the access network device includes:
  • the access network device sends a second DCI to the terminal in time unit m; the second DCI is used to instruct the terminal to use the second PDCCH monitoring configuration for PDCCH monitoring starting from time unit m + 1; where l is a non-negative integer and l is The preset value or the time unit m + 1 is determined according to the second PDCCH monitoring configuration.
  • the time unit m + 1 is the closest listening time unit after the time unit n in the at least one second candidate time unit; the at least one second candidate time unit is determined according to the second PDCCH monitoring configuration; Alternatively, the time unit m + 1 is a time unit where the nearest listening time position after the second monitoring time position is located among the at least one second candidate monitoring time position; at least one second candidate monitoring time position is monitoring according to the second PDCCH. The configuration is determined; the second listening time position is the listening time position where the second DCI is received.
  • the time unit is a time slot.
  • the device provided in this embodiment determines the first PDCCH monitoring configuration and the second monitoring configuration, and the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration; the terminal receives the access network device and sends DCI; when DCI is the first DCI conforming to the first indication mode, the terminal uses the first PDCCH monitoring configuration for PDCCH monitoring; since the monitoring period of the first PDCCH monitoring configuration is greater than the monitoring period of the second PDCCH monitoring configuration, In the second PDCCH monitoring configuration, the monitoring frequency in the first PDCCH monitoring configuration is reduced, thereby reducing the power waste of the terminal in receiving the PDCCH in the second PDCCH monitoring configuration, and reducing the power consumption of the terminal.
  • the second PDCCH monitoring configuration monitoring period is the original monitoring period when the terminal monitors the PDCCH.
  • the first PDCCH monitoring configuration with a monitoring period greater than the original monitoring period is used to enable the terminal to monitor the PDCCH.
  • the reduction of the monitoring frequency for monitoring can reduce the power waste in the process of receiving the PDCCH by the terminal, and reduce the power consumption of the terminal.
  • FIG. 13 is a block diagram of a PDCCH monitoring apparatus 500 according to another exemplary embodiment of the present application.
  • the device can be used as a transmitting device or a receiving device.
  • the monitoring device 500 of the PDCCH may be a terminal.
  • the PDCCH monitoring device 500 may include: a processor 501, a receiver 502, a transmitter 503, and a memory 504.
  • the receiver 502, the transmitter 503, and the memory 504 are connected to the processor 501 through a bus, respectively.
  • the processor 501 includes one or more processing cores.
  • the processor 501 runs a software program and a module to execute a method performed by a terminal or an access network device in a PDCCH monitoring method provided by an embodiment of the present disclosure.
  • the memory 504 may be used to store software programs and modules. Specifically, the memory 504 may store an operating system 5041, an application program module 5042 required for at least one function.
  • the receiver 502 is configured to receive communication data sent by other devices, and the transmitter 503 is configured to send communication data to other devices.
  • Fig. 14 is a block diagram of a PDCCH monitoring system 600 according to an exemplary embodiment. As shown in Fig. 14, the PDCCH monitoring system 600 includes an access network device 601 and a terminal 602.
  • the access network device 601 is configured to perform a PDCCH monitoring method performed by the access network device in the embodiment shown in FIG. 2.
  • the terminal 602 is configured to execute the PDCCH monitoring method performed by the terminal in the embodiment shown in FIG. 2.
  • a computer-readable storage medium is also provided.
  • the computer-readable storage medium is a non-volatile computer-readable storage medium, and the computer-readable storage medium stores a computer program therein.
  • the method for monitoring a PDCCH provided by the foregoing embodiments of the present disclosure can be implemented.
  • An embodiment of the present disclosure also provides a computer program product.
  • the computer program product stores instructions that, when run on a computer, enable the computer to execute the PDCCH monitoring method provided by the embodiment of the present disclosure.
  • An embodiment of the present disclosure further provides a chip, which includes a programmable logic circuit and / or a program instruction, and can execute a PDCCH monitoring method provided by an embodiment of the present disclosure when the chip is running.

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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention appartient au domaine technique des communications, et concerne plus particulièrement un procédé de surveillance de PDCCH, un appareil, et un système. Le procédé consiste : à déterminer une première configuration de surveillance de PDCCH et une seconde configuration de surveillance de PDCCH, la période de surveillance de la première configuration de surveillance de PDCCH étant supérieure à la période de surveillance de la seconde configuration de surveillance de PDCCH ; à recevoir, par l'intermédiaire d'un terminal, des DCI envoyées par un dispositif de réseau d'accès ; et lorsque les DCI sont des premières DCI conformes à une première manière d'indication, à effectuer, par l'intermédiaire du terminal, une surveillance de PDCCH à l'aide de la première configuration de surveillance de PDCCH. La période de surveillance de la première configuration de surveillance de PDCCH est supérieure à la période de surveillance de la seconde configuration de surveillance de PDCCH, et par conséquent, par rapport à la seconde configuration de surveillance de PDCCH, la fréquence de surveillance sous la première configuration de surveillance de PDCCH diminue, réduisant ainsi le gaspillage d'énergie dans le processus du terminal recevant le PDCCH sous la seconde configuration de surveillance de PDCCH, et réduisant la consommation d'énergie du terminal.
PCT/CN2018/107079 2018-09-21 2018-09-21 Procédé de surveillance de pdcch, appareil, dispositif et système Ceased WO2020056752A1 (fr)

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CN201880092873.6A CN112042143B (zh) 2018-09-21 2018-09-21 Pdcch的监听方法、装置、设备及系统
PCT/CN2018/107079 WO2020056752A1 (fr) 2018-09-21 2018-09-21 Procédé de surveillance de pdcch, appareil, dispositif et système
TW108133674A TW202019214A (zh) 2018-09-21 2019-09-18 Pdcch的監聽方法、裝置、設備及系統

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