CN109429258B - Indication method, monitoring method, terminal and network side device for channel monitoring - Google Patents

Abstract

Embodiments of the present invention provide an indication method for channel monitoring, a monitoring method, a terminal, and a network side device. The indication method includes: sending indication information to a terminal, where the indication information is used to instruct the terminal to monitor or stop monitoring a physical downlink control channel PDCCH s position. The solution of the present invention can enable the terminal to monitor the PDCCH at the indicated position without monitoring each PDCCH, thereby reducing the power consumption of the terminal.

Description

Indication method, monitoring method, terminal and network side device for channel monitoring

technical field

The present invention relates to the field of communication technologies, and in particular, to an indication method for channel monitoring, a monitoring method, a terminal and a network side device.

Background technique

Packet-based data flow is usually bursty, with data transmission for a period of time, but no data transmission for a longer period of time afterward. When there is no data transmission, the UE can reduce power consumption by stopping detection of PDCCH (Physical Downlink Control Channel), thereby improving battery life. This is the origin of DRX (Discontinuous Reception).

The basic mechanism of DRX is to configure a DRX cycle (discontinuous reception cycle) for RRC_CONNECTED UE (terminal based on RRC connection).

As can be seen from Figure 1, the DRX cycle consists of an On Duration period and an Opportunity for DRX (non-receiving period).

The On Duration period indicates the number of PDCCH subframes that are continuously monitored from the start of one DRX Cycle. During the On Duration time, the UE monitors and receives the PDCCH, and if the UE receives a PDCCH indicating a new transmission, it starts the drx-InactivityTimer. drx-InactivityTimer indicates the number of PDCCH subframes that the UE continues to monitor after successfully decoding a PDCCH indicating initial transmission of data. The off state is between two on Durations, that is, multiple on Durations are not continuous.

During the Opportunity for DRX time, the UE may not receive the PDCCH to reduce power consumption.

It can be seen that when the UE is configured with DRX, the UE will monitor the PDCCH in the following three activation time periods:

During the operation of On DurationTimer (continuous sending time timer), monitor the PDCCH indicating newly transmitted data;

During the operation of drx-InactivityTimer (timer without sending data), PDCCH is not monitored;

In order to allow the UE to sleep during the HARQ RTT (the time interval between the retransmitted downlink data and the same downlink data transmitted last time), a HARQ RTT timer (retransmission process) is defined for each downlink HARQ process (retransmission process). timer).

When the decoding of the transport block of a downlink HARQ process fails, the UE can assume that there will be retransmission at least after the HARQ RTT subframe, so the UE does not need to monitor the PDCCH when the HARQ RTT timer is running.

When the HARQ RTT timer times out and the data received by the corresponding HARQ process is not successfully decoded, the UE will start a drx-RetransmissionTimer (discontinuous reception retransmission timer) for the HARQ process. When the drx-RetransmissionTimer runs, the UE monitors the PDCCH subframes used for HARQ retransmission.

DRX can also be applied to carrier combining and dual connectivity scenarios. In a carrier aggregation scenario, if one or more SCells (serving 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. When the UE is in the sleep period, all the carrier elements do not receive data; when the UE is activated, all the active carrier elements will be activated to receive data. In dual connectivity scenarios, MCG (Master Cell Group, primary cell group) and SCG (Secondary Cell Group, secondary cell group) can use different DRX configurations, and all serving cells in the same CG (cell group) use the same DRX operation. Although DRX can reduce UE power consumption, the application of carrier aggregation and dual connectivity may further increase power consumption.

In the case where DRX is not configured for the UE, the UE needs to monitor each PDCCH subframe to obtain uplink/downlink data, so the problem of UE power consumption is more serious.

SUMMARY OF THE INVENTION

The present invention provides an indication method for channel monitoring, a monitoring method, a terminal and a network side device. Further reduce UE power consumption.

In order to solve the above-mentioned technical problems, the embodiments of the present invention provide the following solutions:

A method for indicating channel monitoring, comprising:

Sending indication information to the terminal, where the indication information is used to instruct the terminal to monitor or stop monitoring the position of the physical downlink control channel PDCCH.

Wherein, the step of sending the indication information to the terminal includes:

The first indication information sent to the terminal and used to explicitly instruct the terminal to stop monitoring or monitor the location of the PDCCH.

Wherein, the first indication information carries a first numerical value, and the first numerical value represents the onDuration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes during which monitoring of the PDCCH is stopped; or

The first indication information carries a second value, and the second value indicates that the PDCCH is not monitored for 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 carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval or frequency. stop or start monitoring the PDCCH on a point or subcarrier; or

The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe/TTI Stop or start monitoring PDCCH on /slot/PDCCH subframe; or

The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit duration/number of PDCCH subframes starting from offset, or a time period starting from offset , stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH for the subframe/TTI/time slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

Wherein, the step of sending the indication information to the terminal includes:

The second indication information carrying the related information instructing the terminal to monitor the PDCCH is sent to the terminal.

Wherein, the relevant information carried by the second indication information includes: downlink buffer status report.

Embodiments of the present invention also provide a method for monitoring a channel, including:

receiving the location indication information sent by the network side device and used to instruct the terminal to monitor the physical downlink control channel PDCCH;

According to the indication information, stop monitoring or monitor the PDCCH.

Wherein, receiving the location indication information sent by the network side device and used to instruct the terminal to monitor the physical downlink control channel PDCCH includes:

The first indication information sent by the network side device and used to explicitly indicate the location where the terminal monitors the PDCCH is received.

Wherein, the first indication information carries a first numerical value, and the first numerical value represents the onDuration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes that do not need to monitor the PDCCH; or

The first indication information carries a second value, and the second value indicates that the PDCCH is not monitored for 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 carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval or frequency. stop or start monitoring the PDCCH on a point or subcarrier; or

The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe/TTI Stop or start monitoring PDCCH on /slot/PDCCH subframe; or

The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit duration/number of PDCCH subframes starting from offset, or T time periods starting from offset , stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH for the subframe/TTI/time slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

Wherein, according to the indication information, the step of monitoring the PDCCH includes:

According to the first indication information, monitor the PDCCH at the position indicated by the first indication information.

Wherein, receiving the location indication information sent by the network side device and used to instruct the terminal to monitor the PDCCH includes:

The second indication information that is sent by the network side device and carries the related information instructing the terminal to monitor the PDCCH is received.

Wherein, the relevant information carried by the second indication information includes: downlink buffer status report.

Wherein, according to the indication information, the step of monitoring the PDCCH includes:

According to the downlink buffer status report in the second indication information, it is determined that if there is data to be received in the buffer, the PDCCH is monitored.

An embodiment of the present invention also provides a network side device, including:

The transceiver is configured to send indication information to the terminal, where the indication information is used to instruct the terminal to monitor or stop monitoring the position of the physical downlink control channel PDCCH.

Wherein, the transceiver is specifically used for: sending the first indication information to the terminal for explicitly instructing the terminal to stop monitoring or monitor the position of the PDCCH.

Wherein, the first indication information carries a first numerical value, and the first numerical value represents the onDuration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes during which monitoring of the PDCCH is stopped; or

The first indication information carries a second value, and the second value indicates that the PDCCH is not monitored for 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 carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval or frequency. stop or start monitoring the PDCCH on a point or subcarrier; or

The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe/TTI Stop or start monitoring PDCCH on /slot/PDCCH subframe; or

The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit duration/number of PDCCH subframes starting from offset, or a time period starting from offset , stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH for the subframe/TTI/time slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

The transceiver is specifically configured to send to the terminal second indication information that carries relevant information instructing the terminal to monitor the PDCCH.

Wherein, the relevant information carried by the second indication information includes: downlink buffer status report.

An embodiment of the present invention also provides a terminal, including:

a transceiver, configured to receive location indication information sent by the network side device and used to instruct the terminal to monitor the physical downlink control channel PDCCH;

The processor is configured to stop monitoring or monitor the PDCCH according to the indication information.

The transceiver is specifically configured to receive the first indication information sent by the network side device and used to explicitly instruct the terminal to monitor the location of the PDCCH.

Wherein, the first indication information carries a first numerical value, and the first numerical value represents the onDuration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes that do not need to monitor the PDCCH; or

The first indication information carries a second value, and the second value indicates that the PDCCH is not monitored for 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 carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval or frequency. stop or start monitoring the PDCCH on a point or subcarrier; or

The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe/TTI Stop or start monitoring PDCCH on /slot/PDCCH subframe; or

The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit duration/number of PDCCH subframes starting from offset, or T time periods starting from offset , stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH for the subframe/TTI/time slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

The processor is specifically configured to monitor the PDCCH at the position indicated by the first indication information according to the first indication information.

Wherein, the transceiver is specifically configured to receive the second indication information that is sent by the network side device and carries relevant information instructing the terminal to monitor the PDCCH.

Wherein, the relevant information carried by the second indication information includes: downlink buffer status report.

The processor is specifically configured to, according to the downlink buffer status report in the second indication information, determine that if there is data to be received in the buffer, monitor the PDCCH.

Embodiments of the present invention also provide a communication device, including: a processor, and a memory storing a computer program, the computer program being executed by the processor to execute the method described in any one of the above.

Embodiments of the present invention also provide a computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform any of the methods described above.

The above-mentioned scheme of the present invention at least includes the following beneficial effects:

In the above solution of the present invention, the indication information is sent to the terminal, and the indication information is used to instruct the terminal to monitor or stop monitoring the position of the physical downlink control channel PDCCH. Therefore, the terminal can be made to monitor the PDCCH at the indicated position without monitoring each PDCCH, thereby reducing the power consumption of the terminal.

Description of drawings

1 is a schematic diagram of the basic situation of discontinuous reception of DRX of a terminal;

2 is a schematic diagram of a first example of a position where the PDCCH is monitored or not monitored by the first indication information according to an embodiment of the present invention;

3 is a schematic diagram of a second example of a position of monitoring or not monitoring a PDCCH according to the first indication information according to an embodiment of the present invention;

4 is a schematic diagram of a third example of a position where the PDCCH is monitored or not monitored by the first indication information according to an embodiment of the present invention;

5 is a schematic diagram of a fourth example of monitoring or not monitoring the position of the PDCCH described in the first indication information according to the embodiment of the present invention;

FIG. 6 is a fifth example schematic diagram of a position where the PDCCH is monitored or not monitored according to the first indication information according to an embodiment of the present invention;

7 is a schematic diagram of a first example of monitoring or not monitoring the position of the PDCCH described in the second indication information according to an embodiment of the present invention;

8 is a schematic diagram of a second example of monitoring or not monitoring the position of the PDCCH described in the second indication information according to an embodiment of the present invention;

FIG. 9 is a flowchart of a method for monitoring a channel according to an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

An embodiment of the present invention provides an indication method for channel monitoring, including:

Sending indication information to the terminal, where the indication information is used to instruct the terminal to monitor or stop monitoring the position of the physical downlink control channel PDCCH.

Wherein, the step of sending the indication information to the terminal includes:

The first indication information sent to the terminal for explicitly instructing the terminal to stop monitoring or monitoring the location of the PDCCH, or the second indication information carrying the relevant information instructing the terminal to monitor the PDCCH is sent to the terminal.

in:

1) the first indication information carries a first numerical value, and the first numerical value represents the onDuration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes for stopping monitoring of the PDCCH;

The specific instructions are as follows:

As shown in FIG. 2 , the first indication may carry a value of N to indicate continuous onDuration/DRX cycle/fixed unit duration (such as radio frame length, subframe length)/number of PDCCH subframes without PDCCH monitoring. N is an integer greater than or equal to 1.

or,

2) the first indication information carries a second numerical value, and the second numerical value indicates that within a period of time from the current moment, the PDCCH is not monitored, and the PDCCH is started to be monitored after the period of time ends;

The specific instructions are as follows:

As shown in FIG. 2 , the first indication may carry a T value, which is used to indicate that the PDCCH may not be monitored in the next period of time. The T value may be in ms, or may be in TTI, or may be in slot.

or,

3) The first indication information carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period;

or

4) The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval. Or stop or start monitoring the PDCCH on the frequency point or subcarrier;

The specific instructions are as follows:

As shown in FIG. 3 , the first indication may carry a bit string bitmap1, and each bit on bitmap1 corresponds to a PRB or carrier interval or frequency point or subcarrier, and is used to indicate which PRB, or carrier interval, or frequency point, or stop/start monitoring of PDCCH on subcarriers.

or

5) The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe. Stop or start monitoring PDCCH on /TTI/slot/PDCCH subframe;

The specific instructions are as follows:

As shown in FIG. 4 , the first indication may carry a bit string bitmap2, and each bit on bitmap2 corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate which subframes, or TTI, or stop/start monitoring of the PDCCH on the slot or the PDCCH subframe. For example, if the bit corresponding to a certain PDCCH subframe is 0, it indicates that monitoring is required, and if it is 1, it indicates that monitoring is not required.

or

6) The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment is given;

The specific instructions are as follows:

As shown in FIG. 5 , the first indication may carry the position of the PDCCH 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 moment is given.

or

7) The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit durations/number of PDCCH subframes starting from offset, or a number of PDCCH subframes starting from offset. During the time period, stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH in the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

The specific instructions are 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). Indicates stop/start monitoring of PDCCH for consecutive N or T corresponding periods starting from offset, or stop/start monitoring PDCCH for bitmap 2 subframes/TTI/slot/PDCCH subframes starting from offset.

1), 2), 6) and 4) can also be used in combination, that is, the indication can carry a bit string bitmap1 and one or more N/Ts, or PDCCH subframe positions to be monitored, to indicate where the UE is PRB or carrier interval or frequency points or periods on subcarriers (N/T indication, or PDCCH subframe position indication) to stop/start monitoring PDCCH.

4) and 5) can also be used in combination, that is, the indication can carry a bit string bitmap1 and one or more bitmap2, which are used to indicate which PRB or carrier interval or frequency point or which specific moment (bitmap2) the UE is on. indication) to stop/start monitoring the PDCCH.

The relevant information carried by the second indication information includes: downlink buffer status report (BSR).

Specifically, the indication information is as follows:

As shown in Figures 7 and 8, the second indication may carry the downlink BSR condition, such as the buffered data condition on each LCH. For example, when the UE finds that there is no more data to receive on the LCH with higher priority, it turns off the receiver and does not detect the PDCCH. Until the next DRX cycle comes, or the UE is paged, or the uplink data arrives, or the updated downlink BSR indicates that there is data to be received, the PDCCH starts to be detected.

The above-mentioned embodiments of the present invention can more dynamically control the detection of the PDCCH by the UE through the discontinuous reception indication, thereby reducing the power consumption of the UE.

Specifically, in the above-mentioned embodiments of the present invention, the discontinuous reception indication method can be used for explicit indication (such as the indication method of the above-mentioned first indication information) or implicit indication (such as the indication method of the above-mentioned second indication information) Instructing the UE to start monitoring or stop monitoring the position of the PDCCH can reduce the power consumption of the terminal. Wherein, the explicit indication includes: delivering through PDCCH, or indicating through MAC CE. The implicit indication may be that the base station delivers the downlink BSR MAC CE, and based on the BSR, the UE infers when to start/stop detecting the PDCCH.

The methods described in the above embodiments of the present invention are not only applicable to the case where DRX is configured for the UE, but also applicable to the case where the UE is not configured with DRX.

The above-mentioned embodiments of the present invention can control the PDCCH detection situation of multiple DRX cycles or time periods. Compared with the prior art, the solution of the present invention has a wider application range. It is not only applicable to the case where the base station configures DRX for the UE, but also applies to the case where DRX is not configured for the UE. At the same time, compared with the prior art, the discontinuous reception design in the carrier aggregation scenario is further optimized.

As shown in FIG. 9 , an embodiment of the present invention further provides a method for monitoring a channel, including:

Step 91: Receive location indication information sent by the network side device and used to instruct the terminal to monitor the physical downlink control channel PDCCH;

Step 92, according to the indication information, stop monitoring or monitor the PDCCH.

Wherein, step 91 may include:

Receive the first indication information sent by the network side device and used to explicitly instruct the terminal to monitor the location of the PDCCH; or

The second indication information that is sent by the network side device and carries the related information instructing the terminal to monitor the PDCCH is received.

Wherein, 1) the first indication information carries a first numerical value, and the first numerical value represents the on Duration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes that do not need to monitor the PDCCH; or

or

3) The first indication information carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

4) The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval. or stop or start monitoring the PDCCH on the frequency or sub-carrier; or

5) The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe. Stop or start monitoring PDCCH on /TTI/slot/PDCCH subframe; or

6) The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment is given; or

7) The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit duration/number of PDCCH subframes starting from offset, or T starting from offset. During the time period, stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH in the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

1), 2), 6) and 4) can also be used in combination, that is, the indication can carry a bit string bitmap1 and one or more N/Ts, or PDCCH subframe positions to be monitored, to indicate where the UE is PRB or carrier interval or frequency points or periods on subcarriers (N/T indication, or PDCCH subframe position indication) to stop/start monitoring PDCCH.

4) and 5) can also be used in combination, that is, the indication can carry a bit string bitmap1 and one or more bitmap2, which are used to indicate which PRB or carrier interval or frequency point or which specific moment (bitmap2) the UE is on. indication) to stop/start monitoring the PDCCH.

Correspondingly, step 92 includes:

According to the first indication information, monitor the PDCCH at the position indicated by the first indication information.

The relevant information carried by the second indication information includes: downlink buffer status report BSR.

Correspondingly, step 92 includes:

According to the downlink buffer status report in the second indication information, it is determined that if there is data to be received in the buffer, the PDCCH is monitored.

The above-mentioned embodiments of the present invention can more dynamically control the detection of the PDCCH by the UE through the discontinuous reception indication, thereby reducing the power consumption of the UE.

An embodiment of the present invention also provides a network side device, including:

The transceiver is configured to send indication information to the terminal, where the indication information is used to instruct the terminal to monitor or stop monitoring the position of the physical downlink control channel PDCCH.

Wherein, the transceiver is specifically used for: sending the first indication information to the terminal for explicitly instructing the terminal to stop monitoring or monitor the position of the PDCCH.

Wherein, 1) the first indication information carries a first numerical value, and the first numerical value represents the on Duration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes during which monitoring of the PDCCH is stopped; or

or

3) The first indication information carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

4) The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval. or stop or start monitoring the PDCCH on the frequency or sub-carrier; or

5) The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe. Stop or start monitoring PDCCH on /TTI/slot/PDCCH subframe; or

6) The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment is given; or

7) The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit durations/number of PDCCH subframes starting from offset, or a number of PDCCH subframes starting from offset. During the time period, stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH in the subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

1), 2), 6) and 4) can also be used in combination, that is, the indication can carry a bit string bitmap1 and one or more N/Ts, or PDCCH subframe positions to be monitored, to indicate where the UE is PRB or carrier interval or frequency points or periods on subcarriers (N/T indication, or PDCCH subframe position indication) to stop/start monitoring PDCCH.

4) and 5) can also be used in combination, that is, the indication can carry a bit string bitmap1 and one or more bitmap2, which are used to indicate which PRB or carrier interval or frequency point or which specific moment (bitmap2) the UE is on. indication) to stop/start monitoring the PDCCH. The transceiver is specifically configured to send to the terminal second indication information that carries relevant information instructing the terminal to monitor the PDCCH.

Wherein, the relevant information carried by the second indication information includes: downlink buffer status report BSR.

An embodiment of the present invention also provides a terminal, including:

a transceiver, configured to receive location indication information sent by the network side device and used to instruct the terminal to monitor the physical downlink control channel PDCCH;

The processor is configured to stop monitoring or monitor the PDCCH according to the indication information.

The transceiver is specifically configured to receive the first indication information sent by the network side device and used to explicitly instruct the terminal to monitor the location of the PDCCH.

Wherein, the first indication information carries a first numerical value, and the first numerical value represents the onDuration time period/discontinuous reception period/fixed unit duration/number of PDCCH subframes that do not need to monitor the PDCCH; or

The first indication information carries a second value, and the second value indicates that the PDCCH is not monitored for 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 carries at least one bit, and the bit is used to instruct the terminal to stop monitoring the PDCCH in the current discontinuous reception period; or

The first indication information carries a first bit string, and each bit of the first bit string corresponds to a PRB or carrier interval or frequency point or sub-carrier, and is used to indicate the corresponding PRB or carrier interval or frequency. stop or start monitoring the PDCCH on a point or subcarrier; or

The first indication information carries a second bit string, and each bit of the second bit string corresponds to a subframe/TTI/slot/PDCCH subframe, and is used to indicate that the terminal is in the corresponding subframe/TTI Stop or start monitoring PDCCH on /slot/PDCCH subframe; or

The first indication information carries the system frame number SFN and the PDCCH subframe number of the PDCCH to be monitored, or the number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value offset, which represents N consecutive onDuration time periods/discontinuous reception periods/fixed unit duration/number of PDCCH subframes starting from offset, or T time periods starting from offset , stop or start monitoring the PDCCH, or stop or start monitoring the PDCCH for the subframe/TTI/time slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

The processor is specifically configured to monitor the PDCCH at the position indicated by the first indication information according to the first indication information.

Wherein, the transceiver is specifically configured to receive the second indication information that is sent by the network side device and carries relevant information instructing the terminal to monitor the PDCCH.

Wherein, the relevant information carried by the second indication information includes: downlink buffer status report BSR.

The processor is specifically configured to, according to the downlink buffer status report in the second indication information, determine that if there is data to be received in the buffer, monitor the PDCCH.

Embodiments of the present invention also provide a communication device, including: a processor, and a memory storing a computer program, the computer program being executed by the processor to execute the method described in any one of the above. When the communication device is the foregoing network side device, the processor executes the method indicated by the foregoing network side device, and when the communication device is the foregoing terminal, the processor executes the foregoing method for monitoring a channel at the terminal side.

Embodiments of the present invention also provide a computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform any of the methods described above.

The above-mentioned scheme of the present invention at least includes the following beneficial effects:

In the above solution of the present invention, the indication information is sent to the terminal, and the indication information is used to instruct the terminal to monitor or stop monitoring the position of the physical downlink control channel PDCCH. Therefore, the terminal can be made to monitor the PDCCH at the indicated position without monitoring each PDCCH, thereby reducing the power consumption of the terminal.

The above-mentioned embodiments of the present invention explicitly inform the UE where to stop or start monitoring the PDCCH. That is, the indication is used to tell the UE when or during which time the PDCCH is not to be received, or used to tell the UE when or during which time the PDCCH only needs to be monitored. The indication can be delivered through the PDCCH or through the MAC CE. Alternatively, the UE is informed through an implicit indication, that is, it is not explicitly indicated to the UE, and the UE can indirectly infer when to stop or start monitoring the PDCCH through the indication. For example, the base station delivers the downlink BSR MAC CE to inform the UE of the buffered data status of each LCH on the base station side. The UE finds that there is no data (or high priority data) to send on the LCH, so it stops monitoring the PDCCH. The UE stops or/and starts monitoring the PDCCH according to the received discontinuous reception indication. The detection of the PDCCH by the UE can be controlled more dynamically, thereby reducing the power consumption of the UE.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (14)

1. A method for indicating channel listening, comprising:

under the condition that the UE is not configured with DRX, sending indication information to the terminal, wherein the indication information is used for indicating the terminal to monitor or stop monitoring the position of a physical downlink control channel PDCCH in a discontinuous reception indication mode, and the method comprises the following steps: the first indication information is sent to the terminal in an explicit indication mode and used for explicitly indicating the terminal to stop monitoring or monitor the position of the PDCCH;

the first indication information carries a first bit string, wherein each bit of the first bit string corresponds to one PRB or carrier interval or frequency point or subcarrier and is used for indicating that the monitoring of the PDCCH is stopped or started on the corresponding PRB or carrier interval or frequency point or subcarrier; or

The first indication information carries a second bit string, each bit of the second bit string corresponds to one subframe/TTI/time slot/PDCCH subframe and is used for indicating a terminal to stop or start monitoring the PDCCH on the corresponding subframe/TTI/time slot/PDCCH subframe; or

The first indication information carries a system frame number SFN and a PDCCH subframe number of the PDCCH to be monitored, or gives a number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value, which indicates N consecutive on Duration periods/discontinuous reception periods/fixed unit durations/number of PDCCH subframes starting from the offset, or a period starting from the offset, stops or starts monitoring the PDCCH, or stops or starts monitoring the PDCCH from a subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

2. The method for indicating channel listening of claim 1, wherein the related information carried by the second indication information comprises: and (5) downloading a buffer status report.

3. A method for listening to a channel, comprising:

under the condition that the UE is not configured with DRX, receiving the position indication information which is sent by the network side equipment and used for indicating the terminal to monitor the physical downlink control channel PDCCH in a discontinuous reception indication mode, wherein the position indication information comprises the following information: receiving first indication information which is sent by network side equipment in an explicit indication mode and used for explicitly indicating the position of a terminal for monitoring the PDCCH;

stopping monitoring or monitoring the PDCCH according to the indication information;

the first indication information carries a first bit string, wherein each bit of the first bit string corresponds to one PRB or carrier interval or frequency point or subcarrier and is used for indicating that the monitoring of the PDCCH is stopped or started on the corresponding PRB or carrier interval or frequency point or subcarrier; or

The first indication information carries a second bit string, each bit of the second bit string corresponds to one subframe/TTI/time slot/PDCCH subframe and is used for indicating a terminal to stop or start monitoring the PDCCH on the corresponding subframe/TTI/time slot/PDCCH subframe; or

The first indication information carries a system frame number SFN and a PDCCH subframe number of the PDCCH to be monitored, or gives a number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value, which indicates N consecutive on Duration periods/discontinuous reception periods/fixed unit durations/number of PDCCH subframes starting from the offset, or a period starting from the offset, stops or starts monitoring the PDCCH, or stops or starts monitoring the PDCCH from a subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

4. The method for monitoring the channel according to claim 3, wherein the step of monitoring the PDCCH according to the indication information comprises:

and monitoring the PDCCH at the position indicated by the first indication information according to the first indication information.

5. The method for monitoring the channel according to claim 4, wherein the related information carried by the second indication information includes: and (5) downloading a buffer status report.

6. The method for monitoring the channel according to claim 5, wherein the step of monitoring the PDCCH according to the indication information comprises:

and monitoring the PDCCH if the data needing to be received exists in the buffer area according to the downlink buffer area status report in the second indication information.

7. A network-side device, comprising:

the system comprises a transceiver and a terminal, wherein the transceiver is used for sending indication information to the terminal under the condition that the UE is not configured with DRX, and the indication information is used for indicating the terminal to monitor or stop monitoring the position of a Physical Downlink Control Channel (PDCCH) in a discontinuous reception indication mode;

the transceiver is specifically configured to: first indication information which is sent to a terminal in an explicit indication mode and is used for explicitly indicating the terminal to stop monitoring or monitoring the position of the PDCCH;

the first indication information carries a first bit string, wherein each bit of the first bit string corresponds to one PRB or carrier interval or frequency point or subcarrier and is used for indicating that the monitoring of the PDCCH is stopped or started on the corresponding PRB or carrier interval or frequency point or subcarrier; or

The first indication information carries a second bit string, each bit of the second bit string corresponds to one subframe/TTI/time slot/PDCCH subframe and is used for indicating a terminal to stop or start monitoring the PDCCH on the corresponding subframe/TTI/time slot/PDCCH subframe; or

The first indication information carries a system frame number SFN and a PDCCH subframe number of the PDCCH to be monitored, or gives a number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value, which indicates N consecutive on Duration periods/discontinuous reception periods/fixed unit durations/number of PDCCH subframes starting from the offset, or a period starting from the offset, stops or starts monitoring the PDCCH, or stops or starts monitoring the PDCCH from a subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

8. The network-side device of claim 7, wherein the related information carried by the second indication information includes: and (5) downloading a buffer status report.

9. A terminal, comprising:

the transceiver is used for receiving the position indication information which is sent by the network side equipment and used for indicating the terminal to monitor the Physical Downlink Control Channel (PDCCH) in a discontinuous reception indication mode under the condition that the DRX is not configured for the UE;

the transceiver is specifically configured to receive first indication information, which is sent by a network side device in an explicit indication manner and used for explicitly indicating a position where a terminal monitors a PDCCH;

the processor is used for stopping monitoring or monitoring the PDCCH according to the indication information;

the first indication information carries a first bit string, wherein each bit of the first bit string corresponds to one PRB or carrier interval or frequency point or subcarrier and is used for indicating that the monitoring of the PDCCH is stopped or started on the corresponding PRB or carrier interval or frequency point or subcarrier; or

The first indication information carries a second bit string, each bit of the second bit string corresponds to one subframe/TTI/time slot/PDCCH subframe and is used for indicating a terminal to stop or start monitoring the PDCCH on the corresponding subframe/TTI/time slot/PDCCH subframe; or

The first indication information carries a system frame number SFN and a PDCCH subframe number of the PDCCH to be monitored, or gives a number of the PDCCH subframe calculated from the current moment; or

The first indication information carries an offset value, which indicates N consecutive on Duration periods/discontinuous reception periods/fixed unit durations/number of PDCCH subframes starting from the offset, or a period starting from the offset, stops or starts monitoring the PDCCH, or stops or starts monitoring the PDCCH from a subframe/TTI/slot/PDCCH subframe corresponding to each bit in the second bit string starting from the offset.

10. The terminal according to claim 9, wherein the processor is specifically configured to monitor the PDCCH at a location indicated by the first indication information according to the first indication information.

11. The terminal according to claim 9, wherein the transceiver is specifically configured to receive second indication information that is sent by the network side device and carries information indicating that the terminal monitors the PDCCH.

12. The terminal according to claim 11, wherein the related information carried by the second indication information includes: and (5) downloading a buffer status report.

13. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any one of claims 1-2, or the method of any one of claims 3-6.

14. A computer-readable storage medium having instructions stored thereon, which when executed on a computer, cause the computer to perform the method of any one of claims 1-2, or the method of any one of claims 3-6.

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