CN106034318B - A kind of control method and device of discontinuous reception - Google Patents

Abstract

The invention discloses a kind of control method of discontinuous reception and devices, to solve the problems, such as that unlatching CDRX function existing in the prior art causes data transmission quality to decline.This method comprises: obtaining the parameter value of characterization terminal present channel quality when the discontinuous reception CDRX period under the radio resource control connection RRC_CONNECTED state of network side instruction starts；When the parameter value is greater than pre-set first threshold value, extend the listening period in the CDRX period to physical downlink control channel PDCCH channel.

Description

A control method and device for discontinuous reception

technical field

The present invention relates to the technical field of mobile communication, in particular to a control method and device for discontinuous reception.

Background technique

In the long-term evolution (ong Term Evolution, LTE) system, the terminal obtains the wireless resource information for sending or receiving the uplink and downlink data packets by monitoring the Physical Downlink Control Channel (PDCCH), and the continuous monitoring of the PDCCH will aggravate the power consumption. Considering that the transmission of uplink and downlink data packets in the LTE system is generally bursty, if the terminal can monitor the PDCCH when there is data transmission, and stop monitoring the PDCCH when there is no data transmission, the power of the terminal can be greatly reduced. consumption. In view of this feature, in the LTE system, a discontinuous reception (Discontinuous Reception, DRX) function is configured for a terminal in a radio resource control protocol connection (Radio Resource Control_CONNECTED, RRC_CONNECTED) state, that is, the DRX function in the RRC_CONNECTED state (referred to as CDRX for short). Function). The basic mechanism of this function is to configure a DRX cycle, which can also be called a CDRX cycle, for a terminal in the RRC_CONNECTED state. As shown in Figure 1, it is a schematic diagram of the CDRX cycle. The CDRX cycle consists of the DRX activation period (OnDuration) and the DRX dormancy period (Opportunity for DRX): during the DRX activation period, the terminal monitors and receives the PDCCH (active state); During this period, the terminal does not monitor the PDCCH to reduce power consumption (sleeping state).

Currently, according to the regulations of 3GPP TS 36.321, the CDRX function is configured by the network side (such as the base station), and the terminal turns on and off the CDRX function according to the instructions of the network side. When the CDRX function is turned on, the network side and the terminal are only in the DRX activation period. Send and receive data.

However, in the actual test, it is found that when the terminal is in the weak signal coverage area at the edge of the cell, compared with not enabling the CDRX function, enabling the CDRX function is very likely to cause CDRX out-of-synchronization between the terminal and the network side, that is, the terminal and the network side Entering different DRX states will lead to a decrease in data transmission quality, and the probability of retransmission of uplink and downlink data packets will also increase. That is, when the terminal is in a weak signal coverage area at the edge of the cell, enabling the CDRX function may have a negative impact. The lower the quality, the more severe this negative effect.

Contents of the invention

Embodiments of the present invention provide a discontinuous reception control method and device to solve the problem in the prior art that the quality of data transmission is degraded due to enabling the CDRX function.

Embodiments of the present invention adopt the following technical solutions:

In a first aspect, an embodiment of the present invention provides a discontinuous reception control method, including:

Obtain the parameter value representing the current channel quality of the terminal when the discontinuous reception CDRX cycle in the RRC_CONNECTED state indicated by the network side starts;

When the parameter value is greater than the preset first threshold value, the monitoring time of the physical downlink control channel PDCCH in the CDRX cycle is extended.

Among them, the parameter value is:

The proportion of retransmitted data in the current buffer of the terminal to be sent, or the received signal strength of the terminal.

Wherein, when the parameter value is greater than the preset first threshold value, extending the monitoring time of the PDCCH in the CDRX cycle specifically includes:

When the parameter value is greater than the first threshold value and less than the preset second threshold value, and the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data during the operation of the activation timer On Duration Timer , starting a preset extended timer after the On Duration Timer runs to instruct the terminal to continuously monitor the PDCCH during the running of the Extended Timer;

When the parameter value is greater than the second threshold value, continuously monitor the PDCCH in the CDRX period.

Wherein, the method also includes:

When the terminal receives a PDCCH indicating the initial transmission of uplink and downlink user data during the operation of the extended timer, start a discontinuous reception inactivity timer DRX Inactivity Timer;

When the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data during the running of the extended timer, it enters the DRX sleep period after the running of the extended timer ends.

Wherein, the time length of the extended timer is:

The sum of the time lengths of the HARQ RTT Timer and the DRXRetransmission Timer.

In a second aspect, an embodiment of the present invention provides a control device for discontinuous reception, including:

The parameter value obtaining module is used to obtain the parameter value representing the current channel quality of the terminal when the discontinuous reception CDRX cycle starts under the radio resource control protocol RRC connection state indicated by the network side;

The monitoring time extension module is configured to extend the monitoring time of the physical downlink control channel PDCCH in the CDRX cycle when the parameter value obtained by the parameter value obtaining module is greater than a preset first threshold value.

Among them, the parameter value is:

The proportion of retransmitted data in the current buffer of the terminal to be sent, or the received signal strength of the terminal.

Wherein, the monitoring time extension module specifically includes:

The first monitoring time extension unit is configured to: when the parameter value is greater than the first threshold value and less than a preset second threshold value, and the terminal does not receive an indication during the operation of the activation timer On Duration Timer When the PDCCH of the uplink and downlink user data is initially transmitted, the preset extended timer is started after the On Duration Timer runs to instruct the terminal to continuously monitor the PDCCH during the running of the extended timer;

The second monitoring time extending unit is configured to continuously monitor the PDCCH in the CDRX cycle when the parameter value is greater than the second threshold value.

Wherein, the device also includes:

An inactive timer starting module, configured to start a discontinuous reception inactive timer when the terminal receives a PDCCH indicating the initial transmission of uplink and downlink user data during the running of the extended timer in the first listening time extension unit DRX Inactivity Timer;

The dormancy period entry module is used for when the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data during the running of the extended timer in the first listening time extension unit, after the running of the extended timer ends Enter the DRX sleep period.

Wherein, the time length of the extended timer is:

The sum of the time lengths of the HARQ RTT Timer and the DRXRetransmission Timer.

The beneficial effects of the embodiments of the present invention are as follows:

In the embodiment of the present invention, when the CDRX cycle indicated by the network side is started, the parameter value representing the current channel quality of the terminal is obtained, and when the parameter value is greater than the preset first threshold value, the monitoring of the PDCCH in the CDRX cycle is extended Time, so that when the channel conditions are poor, the execution process of the CDRX function can be reasonably optimized, and the time for the terminal to monitor the PDCCH in the CDRX cycle is prolonged, so it can reduce the occurrence of CDRX out of synchronization between the terminal and the network side due to poor channel conditions The probability of the phenomenon can be reduced, and at the same time, the number of data retransmissions in the terminal can be reduced, thereby achieving the purpose of improving the quality of data transmission.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a CDRX cycle;

FIG. 2 is an implementation flowchart of a discontinuous reception control method provided by an embodiment of the present invention;

FIG. 3 is a specific implementation flowchart of a discontinuous reception control method provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a device for controlling discontinuous reception provided by an embodiment of the present invention.

Detailed ways

In order to solve the problem in the prior art that the quality of data transmission is degraded due to enabling the CDRX function, the embodiment of the present invention conducts a detailed study on the CDRX execution process of the existing solution.

Firstly, the existing CDRX execution process is introduced.

The CDRX execution process is to make the terminal enter the DRX sleep period when there is no data transmission, and re-enter the DRX activation period when there is data to be transmitted, so as to reduce the power consumption of the terminal. After receiving the radio resource control protocol (Radio Resource Control, RRC) reconfiguration message issued by the base station, the terminal reads the CDRX parameters, and then the terminal periodically monitors the PDCCH according to the established rules to configure only one CDRX cycle CDRX execution process For example, CDRX parameters include:

On Duration Timer: An activation timer, which specifies the number of PDCCH subframes that the terminal monitors continuously at the beginning of each CDRX cycle.

DRX Inactivity Timer: Discontinuous reception inactivity timer, which specifies the number of consecutive PDCCH subframes in the DRX activation period after the terminal successfully decodes a PDCCH indicating the initial transmission of uplink and downlink user data during the activation period.

DRX Retransmission Timer: Discontinuous reception retransmission timer, which specifies the number of PDCCH subframes to be continuously monitored starting from the subframe in which the terminal expects to receive downlink retransmission (after the HARQ RTT Timer expires).

HARQ RTT Timer: HARQ backhaul time timer, which allows the terminal to start monitoring the downlink retransmission after counting from the previous downlink transmission and continuing for the duration of the timer. When the HARQ RTT timer times out and the data received by the corresponding HARQ process is not successfully decoded, the terminal will start a DRX-RetransmissionTimer for the HARQ process. When the DRX-Retransmission Timer is running, the terminal will monitor the PDCCH for HARQ retransmission.

longDRX-Cycle: CDRX cycle, which specifies how many subframes a CDRX cycle occupies.

drxStartOffset: Specifies the start subframe of the CDRX cycle.

If the current system frame number (System Frame Number, SFN) satisfies the following formula:

[(SFN*10)+subframe number]modulo(longDRX-Cycle)=drxStartOffset

The terminal starts the On Duration Timer and starts to monitor the PDCCH:

During the running of On Duration Timer, if the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data, then after the On Duration Timer runs, the terminal enters the DRX sleep period and stops PDCCH blind detection until the next CDRX cycle starts .

During the running of the On Duration Timer, if the terminal receives the PDCCH indicating the initial transmission of uplink and downlink user data, the terminal will start the DRX Inactivity Timer, and monitor the PDCCH in each downlink subframe during the running of the timer. When the DRX Inactivity Timer is running and receives a scheduling message (indicating the initial transmission of the PDCCH), the terminal will restart the timer. When the timer expires, the terminal enters the DRX sleep period.

Under normal circumstances, on the premise that the CDRX parameter configuration is reasonable, enabling the CDRX function can reduce the power consumption level of the terminal while ensuring the service quality. However, when the channel quality of the terminal is very poor, continuing to enable the CDRX function will not only cause the degradation of uplink and downlink transmission quality, but also greatly reduce the power consumption gain brought by the CDRX function at this time.

However, in the existing solution, the base station configures the CDRX parameters according to the service characteristics of the bearer, and sends the CDRX parameters to the terminal through the RRC reconfiguration message, that is, the base station only considers the data packet characteristics of the service when configuring the CDRX parameters, and does not consider The status of the configured terminal: such as the channel quality of the current location of the terminal, etc. Moreover, once the CDRX parameters are configured, the terminal will execute the CDRX function according to the CDRX parameters given by the base station.

In the actual test, it is found that when the terminal is in the weak signal coverage area at the edge of the cell and the base station enables the CDRX function, the data transmission quality will decrease compared with the scenario where the CDRX function is not enabled, and the probability of retransmission of uplink and downlink data will be higher. Large, that is, turning on the CDRX function under weak coverage may have negative impacts. The worse the channel quality, the more serious this negative impact. For example, in a scenario where the channel quality is very poor and the CDRX function is enabled, the base station sends a PDCCH indicating the initial transmission of downlink user data in the last subframe of the activation timer On DurationTimer, but the terminal due to poor channel quality If the subframe is lost or the decoding error fails to receive the downlink user data indication, then the terminal will not start the discontinuous reception inactivity timer DRX Inactivity Timer at this time, but directly enters the DRX dormancy period, causing the base station and the terminal Enter different DRX states:

The base station believes that the terminal is still in the DRX activation period, so it will schedule the downlink data Hybrid Automatic Repeat Request (HARQ) process according to the normal process; in fact, the terminal has entered the DRX sleep period at this time and will not continue Monitor the PDCCH, so it may cause continuous missed retransmission of the base station, and in severe cases, the transmission failure of the entire HARQ process will be caused.

This will not only cause the base station to continuously retransmit and occupy control channel resources, but also cause severe downlink data packet loss. In the scenario where the CDRX function is not enabled, even if the terminal misses receiving the PDCCH indicating the initial transmission of downlink user data in a certain time slot, it can resume the HARQ process by continuing to receive retransmissions, thereby avoiding the transmission failure of the entire downlink data HARQ process .

For uplink data transmission, when the terminal enters the DRX dormant period, the base station will suspend the uplink authorization for issuing new data to the terminal, and will not schedule new uplink data transmission until the next DRX activation period. Therefore, if the terminal is in a coverage point with poor channel conditions and the CDRX function is enabled at the same time, when the terminal has more uplink retransmissions due to poor channel conditions, due to the activation of the CDRX function, the newly arrived data packets cannot be transmitted in time: This will lead to the accumulation of uplink data packets of the terminal, causing data transmission delay, and will also cause the terminal to apply for more resource blocks to transmit uplink data during the subsequent DRX activation period. However, the uplink transmission power of the terminal is limited, and the terminal will reduce the reliability of data transmission due to the limited uplink transmission power, which will reduce the probability of the base station successfully receiving data, thereby further deteriorating the transmission quality of the uplink channel.

There is another possible scenario: if the base station sends a PDCCH indicating the initial transmission of uplink user data in the last few subframes of the DRX activation period, at this time, due to the poor channel quality of the terminal, the terminal may lose the PDCCH subframe. frame, the terminal will enter the DRX sleep period because the base station has no new data scheduling, but at this time the base station does not know that the terminal has lost the PDCCH subframe, and will still feed back ACK/NACK in the specified downlink subframe and send retransmission resources At this time, since the terminal has entered the DRX sleep period, it will not receive this part of the PDCCH subframe until the terminal enters the DRX activation period next time. In the worst case, the terminal will wait until the next CDRX cycle before re-monitoring the PDCCH.

Based on the above analysis, the embodiment of the present invention provides a control scheme for discontinuous reception. In this technical solution, when the CDRX cycle indicated by the network side is started, the parameter value representing the current channel quality of the terminal is obtained, and when the parameter value is greater than the preset first threshold value, the monitoring time of the PDCCH in the CDRX cycle is extended , so that when the channel conditions are poor, the execution process of the CDRX function can be reasonably optimized, and the time for the terminal to monitor the PDCCH in the CDRX cycle is prolonged, so that the phenomenon of CDRX out-of-sync between the terminal and the network side caused by poor channel conditions can be reduced probability, and at the same time reduce the number of data retransmissions at the terminal, thereby achieving the purpose of improving the quality of data transmission.

The embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention. And in the case of no conflict, the embodiments and the features of the embodiments in the present invention can be combined with each other.

The embodiment of the present invention provides a control method for discontinuous reception, as shown in FIG. 2 , which is a flow chart for the implementation of the method, and specifically includes the following steps:

Step 12, when the CDRX cycle indicated by the network side starts, obtain the parameter value representing the current channel quality of the terminal;

Wherein, the parameter value only needs to be able to represent the current channel quality of the terminal, and may be, but not limited to, the received signal strength of the terminal, or the proportion of retransmitted data in the terminal's current buffer to be sent.

Step 22, when the parameter value is greater than the preset first threshold value, prolong the monitoring time of the PDCCH in the CDRX cycle.

Specifically, extending the monitoring time of the PDCCH in the CDRX cycle may specifically include:

1. When the parameter value is greater than the first threshold value and less than the preset second threshold value, and the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data during the operation of the OnDuration Timer, after the On DurationTimer operation ends Start the preset extended timer to instruct the terminal to continuously monitor the PDCCH during the running of the extended timer;

Optionally, the time length of the extended timer can be:

The sum of the time lengths of HARQ RTT Timer and DRX Retransmission Time.

Further, during the running of the extended timer, if the terminal receives the PDCCH indicating the initial transmission of uplink and downlink user data, the terminal starts the DRX Inactivity Timer according to the existing process, and monitors the PDCCH in each downlink subframe during the running of the timer ; If the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data, it will directly enter the DRX sleep period after the extended timer runs.

2. When the parameter value is greater than the second threshold value, continuously monitor the PDCCH in the CDRX period.

During the CDRX period, the PDCCH is continuously monitored, that is to say, the terminal automatically turns off the CDRX function.

In the embodiment of the present invention, when the CDRX cycle indicated by the network side is started, the parameter value representing the current channel quality of the terminal is obtained, and when the parameter value is greater than the preset first threshold value, the monitoring of the PDCCH in the CDRX cycle is extended Time, so that when the channel conditions are poor, the execution process of the CDRX function can be reasonably optimized, and the time for the terminal to monitor the PDCCH in the CDRX cycle is prolonged, so it can reduce the occurrence of CDRX out of synchronization between the terminal and the network side due to poor channel conditions The probability of the phenomenon can be reduced, and at the same time, the number of data retransmissions in the terminal can be reduced, thereby achieving the purpose of improving the quality of data transmission.

In order to better understand the embodiments of the present invention, the specific implementation process of the embodiments of the present invention will be described below in combination with specific implementations.

In the embodiment of the present invention, the terminal can maintain a set of thresholds for executing the CDRX function. When the channel condition of the terminal drops to a certain level, the terminal can independently adjust the execution process of the CDRX function to improve the quality of data transmission.

Specifically, taking the CDRX process of configuring one CDRX cycle as an example, the threshold parameters for executing the autonomous CDRX function maintained by the terminal are {T1, T2}.

In the embodiment of the present invention, the proportion of retransmitted data among the data to be sent in the current buffer of the terminal is used as the judgment condition as an example.

As shown in FIG. 3 , it is a specific implementation flowchart of the discontinuous reception control method provided by the embodiment of the present invention. The method specifically includes the following steps:

Step 31, the terminal starts the CDRX cycle indicated by the network side.

Step 32, the terminal calculates the retransmission data ratio α in the data to be sent in the current buffer.

Step 33, the terminal compares α with the preset {T1, T2}:

When T1≤α<T2, execute step 34; when α≥T2, execute step 311; when α<T1, execute step 312.

Step 34, the terminal enables the autonomous CDRX function, and runs the On Duration Timer.

Step 35, the terminal judges whether the PDCCH indicating the initial transmission of uplink and downlink user data is received during the running of the On Duration Timer.

When it is determined that the PDCCH indicating the initial transmission of uplink and downlink user data is not received during the running of the On Duration Timer, step 36 is executed; otherwise, step 310 is executed.

In step 36, the terminal immediately starts an extended timer after the On Duration Timer runs, and the length of the extended timer can be the sum of the HARQ RTT Timer and the DRX Retransmission Timer, and continuously monitors the PDCCH during the running of the extended timer.

Step 37, judging whether the PDCCH indicating the initial transmission of uplink and downlink user data is received during the running period of the extended timer.

When it is judged that the PDCCH indicating the initial transmission of uplink and downlink user data is received during the running of the extended timer, step 38 is performed; otherwise, step 39 is performed.

Step 38, start the DRX Inactivity Timer according to the existing process, and monitor the PDCCH in each downlink subframe during the running of the timer.

Step 39, enter the DRX dormant period directly after the running of the extended timer ends.

Step 310, resume the normal CDRX execution process, start the DRX Inactivity Timer, and monitor the PDCCH in each downlink subframe during the running of the timer.

In step 311, the terminal automatically disables the CDRX function and continuously monitors the PDCCH.

Step 312, the terminal resumes the normal CDRX execution process, and executes the CDRX process according to the CDRX parameters and preset rules configured on the network side.

In the embodiment of the present invention, when the CDRX cycle indicated by the network side is started, the parameter value representing the current channel quality of the terminal is obtained, and when the parameter value is greater than the preset first threshold value, the monitoring of the PDCCH in the CDRX cycle is extended Time, so that when the channel conditions are poor, the execution process of the CDRX function can be reasonably optimized, and the time for the terminal to monitor the PDCCH in the CDRX cycle is prolonged, so it can reduce the occurrence of CDRX out of synchronization between the terminal and the network side due to poor channel conditions The probability of the phenomenon can be reduced, and at the same time, the number of data retransmissions in the terminal can be reduced, thereby achieving the purpose of improving the quality of data transmission.

In addition, the solution of the embodiment of the present invention will not affect the normal scheduling process of the network side, and will not affect the CDRX process of other users under the same base station, and the modification of the network side is small, and the 2G/3G/4G wireless network and There is no requirement for transformation of the core network, and the increase in terminal cost is relatively small.

Based on the same inventive concept, a discontinuous reception control device is also provided in the embodiment of the present invention. Since the problem-solving principle of the above-mentioned device is similar to the control method of discontinuous reception, the implementation of the above-mentioned device can refer to the implementation of the method, repeat The place will not be repeated.

As shown in FIG. 4, it is a schematic structural diagram of a control device for discontinuous reception provided by an embodiment of the present invention, including:

The parameter value obtaining module 41 is used to obtain the parameter value representing the current channel quality of the terminal when the discontinuous reception CDRX cycle starts under the radio resource control protocol RRC connection state indicated by the network side;

The monitoring time extension module 42 is configured to extend the monitoring time of the physical downlink control channel PDCCH in the CDRX cycle when the parameter value obtained by the parameter value obtaining module 41 is greater than a preset first threshold value.

Among them, the parameter value is:

The proportion of retransmitted data in the current buffer of the terminal to be sent, or the received signal strength of the terminal.

Wherein, the listening time extension module 42 specifically includes:

The first monitoring time extension unit 421 is configured to: when the parameter value is greater than the first threshold value and less than the preset second threshold value, and the terminal does not receive the When indicating the PDCCH for initial transmission of uplink and downlink user data, start a preset extended timer after the On Duration Timer runs to instruct the terminal to continuously monitor the PDCCH during the run of the extended timer;

The second monitoring time extension unit 422 is configured to continuously monitor the PDCCH in the CDRX period when the parameter value is greater than the second threshold.

Wherein, the device also includes:

An inactive timer starting module 43, configured to start discontinuous reception inactive when the terminal receives a PDCCH indicating the initial transmission of uplink and downlink user data during the running of the extended timer in the first listening time extension unit 421 Timer DRX Inactivity Timer;

Sleep period entry module 44, used for when the terminal does not receive the PDCCH indicating the initial transmission of uplink and downlink user data during the operation of the extended timer in the first listening time extension unit 421, when the extended timer runs Enter the DRX sleep period after the end.

Wherein, the time length of the extended timer is:

The sum of the time lengths of the HARQ RTT Timer and the DRXRetransmission Timer.

For the convenience of description, the above parts are divided into modules (or units) according to their functions and described separately. Of course, when implementing the present invention, the functions of each module (or unit) can be implemented in one or more pieces of software or hardware.

During specific implementation, the above discontinuous reception control device may be set in the terminal.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (8)

1. a kind of control method of discontinuous reception characterized by comprising

The discontinuous reception CDRX period under the radio resource control connection RRC_CONNECTED state of network side instruction opens When dynamic, the parameter value of characterization terminal present channel quality is obtained；

When the parameter value is greater than pre-set first threshold value, extends to control physical down in the CDRX period and believe The listening period of road PDCCH；

When the parameter value is greater than pre-set first threshold value, when extending the monitoring in the CDRX period to PDCCH Between, it specifically includes:

It is greater than first threshold value in the parameter value and is less than pre-set second threshold value, and the terminal is activating Timer On Duration Timer does not receive the PDCCH that instruction upstream and downstream user data just pass during running when, described Start pre-set extension timer after On Duration Timer end of run, to indicate the terminal in the extension Timer persistently monitors PDCCH during running；

When the parameter value is greater than second threshold value, PDCCH is persistently monitored within the CDRX period.

2. the method as described in claim 1, which is characterized in that the parameter value are as follows:

The received signal strength of re-transmission ratio data or the terminal in the terminal current buffer data to be sent.

3. the method as described in claim 1, which is characterized in that the method also includes:

When the terminal receives the PDCCH passed at the beginning of instruction upstream and downstream user data between the extension timer runtime, Start discontinuous reception inactivity timer DRX Inactivity Timer；

The PDCCH passed at the beginning of the terminal is not received by instruction upstream and downstream user data during the extension timer operation When, DRX dormant period is entered after the extension timer end of run.

4. the method as described in claim 1, which is characterized in that the time span of the extension timer are as follows:

Hybrid automatic repeat-request return interval timer HARQ RTT Timer and discontinuous reception retransmission timer DRX The sum of the time span of Retransmission Time.

5. a kind of control device of discontinuous reception characterized by comprising

Parameter value obtains module, for the discontinuous reception under the radio resource control RRC connected state that network side indicates When the CDRX period starts, the parameter value of characterization terminal present channel quality is obtained；

Listening period extends module, is greater than pre-set first for obtaining the parameter value that module obtains in the parameter value When limit value, extend the listening period in the CDRX period to physical downlink control channel PDCCH；

The listening period extends module, specifically includes:

First listening period extension unit, for being greater than first threshold value in the parameter value and being less than pre-set the Two threshold values, and the terminal does not receive instruction uplink and downlink during Active Timer On Duration Timer is run and uses When the PDCCH that user data just passes, start pre-set extension timing after the On Duration Timer end of run Device, to indicate that the terminal persistently monitors PDCCH during extension timer operation；

Second listening period extension unit is used for when the parameter value is greater than second threshold value, in the CDRX period Inside persistently monitor PDCCH.

6. device as claimed in claim 5, which is characterized in that the parameter value are as follows:

The received signal strength of re-transmission ratio data or the terminal in the terminal current buffer data to be sent.

7. device as claimed in claim 5, which is characterized in that described device further include:

Inactivity timer starting module, for the extension timing when the terminal in the first listening period extension unit When receiving the PDCCH that instruction upstream and downstream user data just pass between the device runtime, start discontinuous reception inactivity timer DRX Inactivity Timer；

Dormant period enters module, for the extension timer operation when the terminal in the first listening period extension unit When period is not received by the PDCCH that instruction upstream and downstream user data just pass, enter after the extension timer end of run DRX dormant period.

8. device as claimed in claim 5, which is characterized in that the time span of the extension timer are as follows:

Hybrid automatic repeat-request return interval timer HARQ RTT Timer and discontinuous reception retransmission timer DRX The sum of the time span of Retransmission Time.