WO2019015460A1 - Procédé d'instruction de surveillance de canal, procédé de surveillance de canal, terminal et dispositif côté réseau - Google Patents

Procédé d'instruction de surveillance de canal, procédé de surveillance de canal, terminal et dispositif côté réseau Download PDF

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Publication number
WO2019015460A1
WO2019015460A1 PCT/CN2018/093375 CN2018093375W WO2019015460A1 WO 2019015460 A1 WO2019015460 A1 WO 2019015460A1 CN 2018093375 W CN2018093375 W CN 2018093375W WO 2019015460 A1 WO2019015460 A1 WO 2019015460A1
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WIPO (PCT)
Prior art keywords
pdcch
indication information
terminal
subframe
monitoring
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PCT/CN2018/093375
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English (en)
Chinese (zh)
Inventor
李娜
陈卓
徐晓东
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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China Mobile Communications Group Co Ltd
Research Institute of China Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • 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

  • the present disclosure relates to the field of communications technologies, and in particular, to a channel interception indication method, a channel monitoring method, a terminal, and a network side device.
  • Packet-based data streams are typically bursty, with data being transmitted over a period of time, but no data is transmitted for the next extended period of time.
  • the UE can reduce the power consumption by stopping detecting the PDCCH (Physical Downlink Control Channel), thereby improving battery life. This is the origin of DRX (Discontinuous Reception).
  • PDCCH Physical Downlink Control Channel
  • the basic mechanism of DRX is to configure a DRX cycle (discontinuous reception period) for the RRC_CONNECTED UE (RRC-based connected terminal).
  • FIG. 1 is a schematic diagram of a discontinuous reception DRX of a terminal.
  • the DRX cycle consists of the On Duration time period (active time period) and the Opportunity for DRX time period (sleep time period).
  • the On Duration period indicates the number of PDCCH subframes that are continuously monitored from the beginning of a DRX Cycle.
  • the UE monitors and receives the PDCCH. If the UE receives a PDCCH indicating a new transmission, the DRx-InactivityTimer is started.
  • the drx-InactivityTimer indicates the number of PDCCH subframes that are continuously monitored after the UE successfully decodes a PDCCH indicating the initial transmission data.
  • the two On Durations are in the off state, that is, the multiple On Durations are not continuous.
  • the UE may not receive the PDCCH to reduce power consumption.
  • the UE monitors the PDCCH during the following three activation time periods: during the On DurationTimer operation, the PDCCH indicating the newly transmitted data is monitored; the drx-InactivityTimer is discontinuously received.
  • the activation timer does not monitor the PDCCH during operation; and, in order to allow the UE to sleep during the HARQ RTT (the time interval between the retransmitted downlink data and the last downlink data transmitted), for each downlink HARQ process ( The retransmission process) defines a HARQ RTT timer (hybrid automatic repeat request round trip timer).
  • the UE can assume that there is retransmission at least after the HARQ RTT subframe, so when the HARQ RTT timer is running, the UE does not need to monitor the PDCCH.
  • the UE When the HARQ RTT timer expires and the data received by the corresponding HARQ process is not successfully decoded, the UE starts a drx-RetransmissionTimer (discontinuous reception retransmission timer) for the HARQ process.
  • the UE When the drx-RetransmissionTimer is running, the UE will listen to the PDCCH subframe for HARQ retransmission.
  • DRX can also be applied to carrier-bonded and dual-connected scenarios.
  • the carrier aggregation scenario if one or more SCells (secondary cells) are configured, all serving cells use the same DRX operation. That is, for all downlink carrier units, the activation time of PDCCH monitoring is the same.
  • the MCG Master Cell Group
  • the SCG Secondary Cell Group
  • DRX operation can reduce UE power consumption
  • carrier aggregation and dual connectivity applications may further increase power consumption.
  • the UE In the case that the DRX is not configured for the UE, the UE needs to monitor each PDCCH subframe to obtain uplink/downlink data, so the UE power consumption problem is more severe.
  • the present disclosure provides a channel interception indication method, a channel monitoring method, a terminal, and a network side device. Further reduce UE power consumption.
  • some embodiments of the present disclosure provide a channel interception indication method, where the indication method includes: sending indication information to a terminal, where the indication information is used to indicate that a terminal monitors or stops monitoring a location of a physical downlink control channel PDCCH.
  • the step of sending the indication information to the terminal includes: first indication information that is sent to the terminal for explicitly indicating that the terminal stops listening or monitors the location of the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/the number of PDCCH subframes that stop monitoring the PDCCH; or the first The indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period ends; or the first indication information carries at least one Bit, the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or the first indication information carries a first bit string, each bit of the first bit string and a PRB or The carrier interval or the frequency point or the subcarrier is corresponding to indicate that the PDCCH is stopped or started to be monitored on the corresponding PRB or the carrier interval or the frequency point or the subcarrier; or the first indication information carries the second bit string, Each bit of the second bit string corresponds to one subframe/TTI/slot/PDCCH subframe, and is used to
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH that needs to be monitored, or gives the number of the PDCCH subframe calculated from the current time; or
  • the first indication information carries an offset value offset, indicating consecutive N Duration durations/discontinuous reception periods/fixed unit durations/PDCCH subframes from the offset, or a period of time from the offset,
  • the PDCCH is stopped or started to be monitored, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from offset stops or starts to monitor the PDCCH.
  • the step of transmitting the indication information to the terminal includes: sending, to the terminal, second indication information that carries related information that indicates that the terminal monitors the PDCCH.
  • the related information carried by the second indication information includes: a downlink buffer status report.
  • some embodiments of the present disclosure provide a channel monitoring method, including: receiving, by a network side device, location indication information used by a network side device to instruct a terminal to monitor a physical downlink control channel PDCCH; and according to the indication information Stop listening or monitoring the PDCCH.
  • the location indication information that is sent by the receiving network side device to indicate that the terminal monitors the physical downlink control channel PDCCH includes: receiving, by the network side device, first indication information that is used to explicitly indicate that the terminal monitors the location of the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/the number of PDCCH subframes that do not need to monitor the PDCCH; or the first The indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period ends; or the first indication information carries at least one Bit, the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or the first indication information carries a first bit string, each bit of the first bit string and a PRB or The carrier interval or the frequency point or the subcarrier is corresponding to indicate that the PDCCH is stopped or started to be monitored on the corresponding PRB or the carrier interval or the frequency point or the subcarrier; or the first indication information carries the second bit string, Each bit of the second bit string corresponds to one subframe/TTI/slot/PDCCH subframe, and
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH that needs to be monitored, or gives the number of the PDCCH subframe calculated from the current time; or
  • the first indication information carries an offset value offset, indicating consecutive N Duration durations/discontinuous reception periods/fixed unit durations/PDCCH subframes starting from offset, or T time periods starting from offset,
  • the PDCCH is stopped or started to be monitored, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from offset stops or starts to monitor the PDCCH.
  • the step of monitoring the PDCCH according to the indication information includes: monitoring, according to the first indication information, a PDCCH at a location indicated by the first indication information.
  • the location indication information that is sent by the receiving network side device to indicate that the terminal monitors the PDCCH includes: receiving, by the network side device, second indication information that carries related information that indicates that the terminal monitors the PDCCH.
  • the related information carried by the second indication information includes: a downlink buffer status report.
  • the step of monitoring the PDCCH according to the indication information includes: determining, according to the downlink buffer status report in the second indication information, whether the data in the buffer needs to be received, and monitoring the PDCCH.
  • some embodiments of the present disclosure further provide a network side device, where the network side device includes: a transceiver, configured to send indication information to the terminal, where the indication information is used to indicate that the terminal monitors or stops monitoring physical downlink control.
  • the location of the channel PDCCH is used to indicate that the terminal monitors or stops monitoring physical downlink control.
  • the transceiver is specifically configured to: send, to the terminal, first indication information that is used to explicitly indicate that the terminal stops listening or monitors a location of the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/the number of PDCCH subframes that stop monitoring the PDCCH; or the first The indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period ends; or the first indication information carries at least one Bit, the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or the first indication information carries a first bit string, each bit of the first bit string and a PRB or The carrier interval or the frequency point or the subcarrier is corresponding to indicate that the PDCCH is stopped or started to be monitored on the corresponding PRB or the carrier interval or the frequency point or the subcarrier; or the first indication information carries the second bit string, Each bit of the second bit string corresponds to one subframe/TTI/slot/PDCCH subframe, and is used to
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH that needs to be monitored, or gives the number of the PDCCH subframe calculated from the current time; or
  • the first indication information carries an offset value offset, indicating consecutive N Duration durations/discontinuous reception periods/fixed unit durations/PDCCH subframes from the offset, or a period of time from the offset,
  • the PDCCH is stopped or started to be monitored, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from offset stops or starts to monitor the PDCCH.
  • the transceiver is specifically configured to send, to the terminal, second indication information that carries related information that indicates that the terminal monitors the PDCCH.
  • the related information carried by the second indication information includes: a downlink buffer status report.
  • some embodiments of the present disclosure further provide a terminal, where the terminal includes: a transceiver, configured to receive, by a network side device, location indication information used by the network side device to indicate that the terminal monitors a physical downlink control channel PDCCH; and a processor, For stopping listening or monitoring the PDCCH according to the indication information.
  • a transceiver configured to receive, by a network side device, location indication information used by the network side device to indicate that the terminal monitors a physical downlink control channel PDCCH
  • a processor For stopping listening or monitoring the PDCCH according to the indication information.
  • the transceiver is specifically configured to receive first indication information that is sent by the network side device to explicitly indicate that the terminal monitors the location of the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/the number of PDCCH subframes that do not need to monitor the PDCCH; or the first The indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period ends; or the first indication information carries at least one Bit, the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or the first indication information carries a first bit string, each bit of the first bit string and a PRB or The carrier interval or the frequency point or the subcarrier is corresponding to indicate that the PDCCH is stopped or started to be monitored on the corresponding PRB or the carrier interval or the frequency point or the subcarrier; or the first indication information carries the second bit string, Each bit of the second bit string corresponds to one subframe/TTI/slot/PDCCH subframe, and
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH that needs to be monitored, or gives the number of the PDCCH subframe calculated from the current time; or
  • the first indication information carries an offset value offset, indicating consecutive N Duration durations/discontinuous reception periods/fixed unit durations/PDCCH subframes starting from offset, or T time periods starting from offset,
  • the PDCCH is stopped or started to be monitored, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from offset stops or starts to monitor the PDCCH.
  • the processor is specifically configured to monitor the PDCCH at the location indicated by the first indication information according to the first indication information.
  • the transceiver is specifically configured to receive second indication information that is sent by the network side device and carries related information that indicates that the terminal monitors the PDCCH.
  • the related information carried by the second indication information includes: a downlink buffer status report.
  • the processor is specifically configured to: according to the downlink buffer status report in the second indication information, determine, if there is data to be received in the buffer, monitor the PDCCH.
  • some embodiments of the present disclosure also provide a communication device including a processor and a memory storing a computer program, wherein the computer program is executed by the processor to perform the first aspect as above Or the method of the second aspect.
  • some embodiments of the present disclosure further provide a computer readable storage medium comprising computer program instructions, wherein the computer program executes as above when the computer program instructions are run on a computer Aspect or method of the second aspect.
  • the foregoing solution of the present disclosure is to send the indication information to the terminal, where the indication information is used to indicate that the terminal monitors or stops monitoring the location of the physical downlink control channel PDCCH. Therefore, the terminal can be used to monitor the PDCCH at the indicated location, and does not need to monitor each PDCCH, thereby reducing power consumption of the terminal.
  • FIG. 1 is a schematic diagram of a basic situation of discontinuous reception of DRX by a terminal
  • FIG. 2 is a first example schematic diagram of a location of listening or not monitoring a PDCCH indicated by first indication information according to some embodiments of the present disclosure
  • FIG. 3 is a second exemplary schematic diagram of a location of listening or not monitoring a PDCCH indicated by first indication information according to some embodiments of the present disclosure
  • FIG. 4 is a schematic diagram showing a third example of a location of listening or not monitoring a PDCCH indicated by first indication information according to some embodiments of the present disclosure
  • FIG. 5 is a fourth exemplary schematic diagram of a location of listening or not monitoring a PDCCH indicated by first indication information according to some embodiments of the present disclosure
  • FIG. 6 is a schematic diagram showing a fifth example of monitoring or not monitoring the location of a PDCCH indicated by first indication information according to some embodiments of the present disclosure
  • FIG. 7 is a first exemplary schematic diagram of a location of listening or not monitoring a PDCCH indicated by a second indication information according to some embodiments of the present disclosure
  • FIG. 8 is a second exemplary diagram of a location of listening or not monitoring a PDCCH indicated by a second indication information according to some embodiments of the present disclosure
  • FIG. 9 is a flow chart of a channel listening method of some embodiments of the present disclosure.
  • Some embodiments of the present disclosure provide a method for indicating channel interception, the method comprising: transmitting indication information to a terminal, where the indication information is used to indicate that a terminal monitors or stops monitoring a location of a physical downlink control channel PDCCH.
  • the step of transmitting the indication information to the terminal includes: sending, to the terminal, first indication information for explicitly indicating that the terminal stops listening or monitoring the location of the PDCCH, or sending the second indication information that carries the related information indicating that the terminal monitors the PDCCH to the terminal. .
  • the first indication information carries a first value, and the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/the number of PDCCH subframes of the PDCCH is stopped.
  • the specific indication method is as follows: As shown in FIG. 2, the first indication may carry an N value, which is used to indicate a continuous On Duration/DRX cycle/fixed unit duration (such as radio frame length, subframe length)/PDCCH without monitoring the PDCCH.
  • the number of subframes. N is an integer greater than or equal to 1.
  • the first indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period of time ends.
  • the specific indication method is as follows: As shown in FIG. 2, the first indication may carry a T value, indicating that the PDCCH may not be monitored for the next period of time.
  • the T value may be in units of milliseconds (ms), may be in units of transmission time intervals TTI, or may be in units of time slot slots.
  • the first indication information carries at least one bit, where the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period.
  • the first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or a carrier interval or a frequency point or a subcarrier, and is used to indicate the corresponding PRB or Stop or start monitoring the PDCCH on the carrier spacing or frequency or subcarrier.
  • the specific indication method is as follows: as shown in FIG. 3, the first indication may carry a bit string bitmap1, and each bit (bit) on the bitmap1 is separated from a physical resource block (PRB) or a carrier interval or a frequency point or a subcarrier. Correspondingly, it is used to indicate which PRB, or carrier spacing, or frequency point, or subcarrier stop/start monitoring PDCCH of the UE.
  • PRB physical resource block
  • the first indication information carries a second bit string, and each bit of the second bit string corresponds to one subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding Stopping or starting to monitor the PDCCH on the subframe/TTI/slot/PDCCH subframe.
  • the specific indication method is as follows: as shown in FIG. 4, the first indication may carry a bit string bitmap2, and each bit on the bitmap2 corresponds to one subframe/TTI/slot/PDCCH subframe, and is used to indicate which UE the UE is in.
  • the PDCCH is stopped/started on the frame, or TTI, or slot, or PDCCH subframe. For example, if the bit corresponding to a certain PDCCH subframe is 0, it means that monitoring is required, and when it is 1, it means that no monitoring is needed.
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH that needs to be monitored, or the number of the PDCCH subframe calculated from the current time.
  • the specific indication method is as follows: As shown in FIG. 5, the first indication may carry the location of the PDCCH that needs to be monitored. For example, the SFN number and the PDCCH subframe number to be monitored are directly given, or the number of the PDCCH subframe calculated from the current time is given.
  • the first indication information carries an offset value offset, indicating consecutive N Duration durations/discontinuous reception periods/fixed unit durations/PDCCH subframes starting from offset, or from offset
  • offset value offset indicating consecutive N Duration durations/discontinuous reception periods/fixed unit durations/PDCCH subframes starting from offset, or from offset
  • the PDCCH is stopped or started to be monitored, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from offset stops or starts to monitor the PDCCH.
  • the specific indication method is as follows: As shown in FIG. 6, the first indication information may carry an offset value, which is used in combination with N or T or bitmap2, that is, in combination with 1)/2)/5).
  • the continuous N or T corresponding period from the offset is stopped/starts to monitor the PDCCH, or the bitmap 2 subframes/TTI/slot/PDCCH subframe starting from offset stops/starts monitoring the PDCCH.
  • the indication may carry a bit string bitmap1 and one or more N/Ts, or PDCCH subframe positions to be monitored, to indicate which UE the UE is in. Which time periods (N/T indication, or PDCCH subframe position indication) on the PRB or carrier spacing or frequency point or subcarrier stop/start monitoring the PDCCH.
  • the indication can carry a bit string bitmap1 and one or more bitmap2, which are used to indicate which PRB or carrier spacing or frequency or subcarriers of the UE are at a specific moment (bitmap2).
  • bitmap2 bitmap2
  • the related information carried by the second indication information includes: a downlink buffer status report (BSR).
  • BSR downlink buffer status report
  • the indication information is as follows: As shown in FIG. 7 and FIG. 8, the second indication may carry a downlink BSR situation, such as a buffered data situation on each LCH. For example, if the UE finds that there is no data to receive on the higher priority LCH, the UE turns off the receiver and does not detect the PDCCH. The detection of the PDCCH is started until the next DRX cycle arrives, or the UE is paged, or the uplink data arrives, or when the updated downlink BSR indicates that there is data to receive.
  • a downlink BSR situation such as a buffered data situation on each LCH. For example, if the UE finds that there is no data to receive on the higher priority LCH, the UE turns off the receiver and does not detect the PDCCH. The detection of the PDCCH is started until the next DRX cycle arrives, or the UE is paged, or the uplink data arrives, or when the updated downlink BSR indicates that there is data to receive.
  • the above embodiments of the present disclosure can control the detection of the PDCCH by the terminal (UE) more dynamically by the discontinuous reception indication, and reduce the power consumption of the UE.
  • the indication manner is discontinuously received: the indication may be explicitly indicated (such as the indication method of the first indication information), or may be implicitly indicated (such as the indication method of the second indication information) Instructing the UE to start listening or stopping monitoring the location of the PDCCH may enable the terminal to reduce power consumption.
  • the explicit indication includes: being delivered by the PDCCH, or indicated by the MAC CE.
  • the implicit indication may be that the base station sends a downlink BSR MAC CE, and based on the BSR, the UE infers when to start/stop detecting the PDCCH.
  • the method described in the above embodiments of the present disclosure is applicable not only to the case where the DRX is configured for the UE, but also to the case where the UE is not configured with the DRX.
  • the above-described embodiments of the present disclosure can control PDCCH detection conditions of multiple DRX cycles or time periods.
  • the solution of the present disclosure is more widely applicable than the related art. It is applicable not only to the case where the base station configures DRX for the UE but also to the case where the DRX is not configured for the UE.
  • the discontinuous reception design in the carrier aggregation scenario is further optimized compared to related technologies.
  • some embodiments of the present disclosure further provide a channel monitoring method, where the channel monitoring method includes steps 91-92.
  • Step 91 Receive location indication information that is sent by the network side device to instruct the terminal to monitor the physical downlink control channel PDCCH.
  • Step 92 Stop listening or monitoring the PDCCH according to the indication information.
  • the step 91 may include: receiving first indication information that is sent by the network side device to explicitly indicate the location where the terminal monitors the PDCCH; or receiving second indication information that is sent by the network side device and carries related information that indicates that the terminal monitors the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/PDCCH subframe number of the PDCCH does not need to be monitored; or 2)
  • the first indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period of time ends; or 3) the first
  • the indication information carries at least one bit, where the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or 4) the first indication information carries the first bit string, the first bit string Each bit corresponds to a PRB or carrier interval or frequency point or subcarrier, used to indicate to stop or start monitoring the PDCCH on the corresponding PRB or carrier interval or frequency point or subcarrier; or 5) the first indication
  • the information carries a second bit string, and each bit of the second bit string corresponds to one subframe/TTI/slot/
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or gives the PDCCH subframe calculated from the current time
  • the first indication information carries an offset value offset, indicating the number of consecutive N Duration periods/discontinuous reception periods/fixed unit durations/PDCCH subframes starting from offset, or The T time period at which the offset starts, stops or starts to monitor the PDCCH, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string from the offset stops or starts to monitor the PDCCH.
  • the indication may carry a bit string bitmap1 and one or more N/Ts, or PDCCH subframe positions to be monitored, to indicate which UE the UE is in. Which time periods (N/T indication, or PDCCH subframe position indication) on the PRB or carrier spacing or frequency point or subcarrier stop/start monitoring the PDCCH.
  • the indication can carry a bit string bitmap1 and one or more bitmap2, which are used to indicate which PRB or carrier spacing or frequency or subcarriers of the UE are at a specific moment (bitmap2).
  • bitmap2 bitmap2
  • the step 92 includes: monitoring the PDCCH at the location indicated by the first indication information according to the first indication information.
  • the related information carried by the second indication information includes: a downlink buffer status report BSR.
  • the step 92 includes: determining, according to the downlink buffer status report in the second indication information, whether the data in the buffer needs to be received, and monitoring the PDCCH.
  • the above embodiments of the present disclosure can control the detection of the PDCCH by the UE more dynamically by the discontinuous reception indication, and reduce the power consumption of the UE.
  • Some embodiments of the present disclosure further provide a network side device, where the network side device includes: a transceiver, configured to send indication information to the terminal, where the indication information is used to indicate that the terminal monitors or stops monitoring the location of the physical downlink control channel PDCCH. .
  • the transceiver is specifically configured to: send, to the terminal, first indication information that is used to explicitly indicate that the terminal stops listening or monitors a location of the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/the number of PDCCH subframes of the PDCCH is stopped to be monitored; or 2)
  • the first indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period of time ends; or 3) the first
  • the indication information carries at least one bit, where the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or 4) the first indication information carries the first bit string, the first bit string Each bit corresponds to a PRB or carrier interval or frequency point or subcarrier, used to indicate to stop or start monitoring the PDCCH on the corresponding PRB or carrier interval or frequency point or subcarrier; or 5) the first indication
  • the information carries a second bit string, and each bit of the second bit string corresponds to one subframe/TTI/s
  • the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or gives the PDCCH subframe calculated from the current time
  • the first indication information carries an offset value offset, indicating the number of consecutive N Duration periods/discontinuous reception periods/fixed unit durations/PDCCH subframes starting from offset, or A period of time when the offset starts, stops or starts to monitor the PDCCH, or the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string from the offset stops or starts to monitor the PDCCH.
  • the indication may carry a bit string bitmap1 and one or more N/Ts, or PDCCH subframe positions to be monitored, to indicate which UE the UE is in. Which time periods (N/T indication, or PDCCH subframe position indication) on the PRB or carrier spacing or frequency point or subcarrier stop/start monitoring the PDCCH.
  • the indication can carry a bit string bitmap1 and one or more bitmap2, which are used to indicate which PRB or carrier spacing or frequency or subcarriers of the UE are at a specific moment (bitmap2).
  • Indication Stop/start monitoring PDCCH.
  • the transceiver is specifically configured to send, to the terminal, second indication information that carries related information that indicates that the terminal monitors the PDCCH.
  • the related information carried by the second indication information includes: a downlink buffer status report BSR.
  • Some embodiments of the present disclosure further provide a terminal, where the terminal includes: a transceiver, configured to receive, by a network side device, location indication information, used by the network side device, to indicate that the terminal monitors the physical downlink control channel PDCCH; and a processor, configured to Describe the information, stop listening or monitor the PDCCH.
  • a transceiver configured to receive, by a network side device, location indication information, used by the network side device, to indicate that the terminal monitors the physical downlink control channel PDCCH
  • a processor configured to Describe the information, stop listening or monitor the PDCCH.
  • the transceiver is specifically configured to receive first indication information that is sent by the network side device to explicitly indicate that the terminal monitors the location of the PDCCH.
  • the first indication information carries a first value, where the first value indicates that the On Duration period/discontinuous reception period/fixed unit duration/PDCCH subframe number of the PDCCH does not need to be monitored; or
  • the first indication information carries a second value, where the second value indicates that the PDCCH is not monitored within a period of time from the current time, and the PDCCH is started to be monitored after the period of time ends; or the first indication information Carrying at least one bit, the bit is used to indicate that the terminal stops monitoring the PDCCH during the current discontinuous reception period; or the first indication information carries a first bit string, each bit of the first bit string Corresponding to a PRB or carrier interval or frequency point or subcarrier, used to indicate to stop or start monitoring the PDCCH on the corresponding PRB or carrier interval or frequency point or subcarrier; or the first indication information carries the second bit a string, each bit of the second bit string corresponding to one subframe/TTI/slot/PDCCH subframe, for indicating that the terminal stops or starts on the corresponding subframe/TTI/slot/PDCCH subframe Monitoring the PDCCH; or the first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH
  • the processor is specifically configured to monitor the PDCCH at the location indicated by the first indication information according to the first indication information.
  • the transceiver is specifically configured to receive second indication information that is sent by the network side device and carries related information that indicates that the terminal monitors the PDCCH.
  • the related information carried by the second indication information includes: a downlink buffer status report BSR.
  • the processor is specifically configured to: according to the downlink buffer status report in the second indication information, determine, if there is data to be received in the buffer, monitor the PDCCH.
  • Some embodiments of the present disclosure also provide a communication device including a processor and a memory storing a computer program, wherein the processor executes the processor when the computer program is executed by the processor The method described.
  • the processor executes a method performed by the network side device, and when the communication device is the terminal, the processor performs a method for monitoring the channel by the terminal side.
  • Some embodiments of the present disclosure also provide a computer readable storage medium comprising computer program instructions.
  • the computer performs the method of any of the above when the computer program instructions are run on a computer.
  • the computer readable storage medium of the present disclosure may be a volatile computer readable storage medium or a non-transitory computer readable storage medium.
  • the foregoing solution of the present disclosure includes at least the following beneficial effects: the foregoing solution of the present disclosure, by sending the indication information to the terminal, the indication information is used to indicate that the terminal monitors or stops monitoring the location of the physical downlink control channel PDCCH. Therefore, the terminal can be used to monitor the PDCCH at the indicated location, and does not need to monitor each PDCCH, thereby reducing power consumption of the terminal.
  • the above-described embodiments of the present disclosure clearly inform the UE of the location at which the PDCCH is stopped or started to be monitored. That is, the indication is used to tell the UE when to use or not to receive the PDCCH, or to tell the UE whether it needs to monitor the PDCCH only when or during.
  • the indication may be delivered by the PDCCH or delivered by the MAC CE.
  • the UE is informed by an implicit indication that the UE is not explicitly indicated, and the UE can indirectly infer when to stop or start monitoring the PDCCH.
  • the base station sends a downlink BSR MAC CE to inform the UE of the corresponding cached data of each LCH on the base station side.
  • the UE finds that the LCH has no data (or no high priority data) to send, so it stops monitoring the PDCCH.
  • the UE stops or/and starts monitoring the PDCCH according to the received discontinuous reception indication.
  • the UE can be more dynamically controlled to detect the PDCCH and reduce the power consumption of the UE.

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

Abstract

La présente invention concerne un procédé d'instruction de surveillance de canal, et un procédé de surveillance de canal, un terminal et un dispositif côté réseau. Le procédé d'instruction consiste : à envoyer des informations d'instruction à un terminal, les informations d'instruction étant utilisées pour donner l'instruction au terminal de surveiller ou d'arrêter de surveiller l'emplacement d'un canal de commande de liaison descendante physique (PDCCH).
PCT/CN2018/093375 2017-07-17 2018-06-28 Procédé d'instruction de surveillance de canal, procédé de surveillance de canal, terminal et dispositif côté réseau Ceased WO2019015460A1 (fr)

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