CN105992266B - Detection method of discontinuous reception capability, terminal and network side equipment - Google Patents

Detection method of discontinuous reception capability, terminal and network side equipment Download PDF

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CN105992266B
CN105992266B CN201510054342.6A CN201510054342A CN105992266B CN 105992266 B CN105992266 B CN 105992266B CN 201510054342 A CN201510054342 A CN 201510054342A CN 105992266 B CN105992266 B CN 105992266B
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terminal
network side
short
drx
period
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CN105992266A (en
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马伟
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ZTE Corp
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ZTE Corp
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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

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a detection method of discontinuous reception capability, a terminal and network side equipment, and relates to an LTE (Long term evolution) technology in a mobile communication technology. The method comprises the following steps: after the network side configures the short-period DRX parameters for the terminal, if the terminal correctly receives the MAC PDU sent by the network side when the duration timer of the short-period DRX is in an active state, the HARQ ACK is returned to the network side; and after the current duration timer is overtime, when the terminal at least in the active state of the duration timer of any short-period DRX, the terminal receives the MAC PDU sent by the network side again, and then the terminal returns the HARQ ACK to the network side again to be used for determining that the terminal has discontinuous reception capability when the short-period DRX is configured. The invention also discloses a terminal and network side equipment. According to the technical scheme, when the terminal supports DRX, particularly, short-cycle DRX and long-cycle DRX are configured at the same time, and whether the terminal has the capability of discontinuous reception or not is detected.

Description

Detection method of discontinuous reception capability, terminal and network side equipment
Technical Field
The present invention relates to an LTE (Long Time Evolution, Long term Evolution) technology in a mobile communication technology, and more particularly, to a scheme for detecting discontinuous reception capability in a mobile LTE communication network.
Background
The DRX function control entity in LTE is located in the MAC layer of a protocol stack, and has the main functions of controlling to send an instruction to a physical layer and informing the physical layer to monitor a PDCCH (physical downlink control channel: for carrying downlink control information) at a specific time, namely, the physical downlink control channel is in an active period, and a receiving antenna is not started at the rest time and is in a sleep state.
When the UE configures the DRX function, the UE monitors the PDCCH in the active period. If the DRX function is configured in the RRC _ CONNECTED state, the UE may monitor the PDCCH discontinuously using the DRX operation specification. In DRX mode, all setting of timers and parameters is done by the RRC layer. The DRX related timers mainly include: (1) OnDurationTimer (duration timer): and in each DRX period, the number of subframes of the PDCCH which the UE needs to monitor. For the rest of the time, the UE may turn off its receiver. (2) DRX Inactivity Timer: after the UE successfully decodes the PDCCH indicating the UL or DL initial transmission, the number of subframes of the inactive PDCCH that are continuously monitored, that is, the PDCCH related to the UE must not be monitored during this time, so that the UE can enter the DRX state. (3) drx-Retransmission Timer: in Retransmission mode, the UE expects the time to receive DL Retransmission, i.e. so much time is needed to accept downlink Retransmission. The three timers are running to start the receiving antenna to monitor the PDCCH.
If the short DRX cycle is used, it is checked whether the current subframe satisfies the following formula:
[(SFN*10)+subframe number]modulo(shortDRX-Cycle)＝(drxStartOffset)modulo(shortDRX-Cycle)；
if a long DRX cycle is used, the following formula is checked:
[(SFN*10)+subframe number]modulo(longDRX-Cycle)＝drxStartOffset；
wherein drxStartOffset means that the duration Timer is started in the first subframe and enters the active period. When one of the above two conditions is satisfied, a timer onDurationTimer is started, at which time the UE starts to monitor the PDCCH channel.
In the DRX operation mechanism in the RRC connected state, a timer and a DRX cycle are combined, and the eNB also maintains the same DRX operation mode as the UE and knows in real time whether the UE is in an active period or a sleep period, thereby ensuring that data is transferred in the active period and data transmission is not performed in the sleep period.
The onDurationTimer is started whenever the period is long or short, and monitoring of the PDCCH is started. Firstly, a new downlink data packet (1) is received, and at the moment, a drx-InactivityTimer timer needs to be started, because the downlink packet transmission processing needs to be finished, the downlink packet transmission processing continues to be monitored for a long time, the data packet decoding is successful, and the downlink packet transmission processing waits for the time-out of the timer without any accident; the drx inactivity timer has not timed out and then receives a packet (2), but fails decoding, and two timers are started: one is a drx-inactivity timer to extend the listening time, and the other is a HARQ RTT timer (internal timer), which, because of failure, estimates that the earliest retransmission will come after the timer expires, so during this time, the retransmission may be disregarded. Then the timer has not timed out, and at this time, a new uplink packet (3) comes, so the drx-inactivity timer is started again, but the drx-inactivity timer enters a sleep state after the timer times out because the decoding of the new packet is successful. After a period of time, this period ends and the beginning of the next period is entered, thus requiring the onDurationTimer timer to be restarted. Before the timer is not finished, the HARQ RTT timer is timed out, and the UE considers that the retransmission may arrive later, so the HARQ retransmission timer is started to monitor the PDCCH information of the retransmission, and then the retransmission arrives and succeeds.
The prior art presents the basic principles of reception of LTE DRX and synchronization mechanisms of the network and the terminal. But for the terminal supporting DRX, especially in the case of short-cycle and long-cycle DRX being configured at the same time, is the terminal capable of discontinuous reception?
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for detecting discontinuous reception capability, a terminal, and a network side device, so as to solve the problem that in the prior art, when a short cycle and/or a long cycle DRX is configured for a terminal, it is not possible to determine whether the terminal has the discontinuous reception capability
In order to solve the technical problem, the invention discloses a method for detecting Discontinuous Reception (DRX) capability, which comprises the following steps:
after a network side configures short-period DRX parameters for a terminal, if the terminal correctly receives a Media Access Control (MAC) layer user Packet Data Unit (PDU) sent by the network side when a duration timer of the short-period DRX is in an active state, hybrid automatic repeat request (HARQ) confirmation information ACK is returned to the network side;
and after the current duration timer is overtime, when the terminal at least receives the MAC PDU sent by the network side again when the duration timer of any short-period DRX is in an active state, the terminal returns HARQ ACK to the network side again for determining that the terminal has discontinuous reception capability when being configured with the short-period DRX.
Optionally, the method further includes:
after waiting for the timeout of the discontinuous reception short-period timer, if the terminal correctly receives the MAC PDU sent by the network side when the duration timer of the long-period DRX is in an active state, the HARQ ACK is returned to the network side;
and after the current duration timer is overtime, when the terminal at least receives the MAC PDU sent by the network side again when the duration timer of any long-period DRX is in an active state, the terminal returns HARQ ACK confirmation information to the network side again for determining that the terminal has discontinuous receiving capability when the long-period DRX is configured.
The invention also discloses a method for detecting the discontinuous reception DRX capacity, which comprises the following steps:
after a network side configures a short-period DRX parameter for a terminal, when a duration timer of the short-period DRX is in an active state, the network side sends a Media Access Control (MAC) layer user Packet Data Unit (PDU) to the terminal and detects whether the terminal returns hybrid automatic repeat request (HARQ) acknowledgement information (ACK);
after the current duration timer is overtime, the network side at least sends MAC PDU to the terminal when the duration timer of any short-period DRX is in an active state, and detects whether the terminal returns HARQ ACK or not;
And when the network side detects HARQ ACK returned by the terminal respectively when the duration timers of at least two short-period DRX are in an active state, determining that the terminal has discontinuous reception capability when the short-period DRX is configured.
Optionally, the method further includes:
after waiting for the timeout of a discontinuous reception short-period timer, when a duration timer of a long-period DRX is in an active state, the network side sends an MAC PDU to the terminal to detect whether the terminal returns HARQ ACK or not;
after the current duration timer is overtime, the network side at least sends MAC PDU to the terminal again when the duration timer of any long-period DRX is in an active state;
and when the network side detects HARQ ACK returned by the terminal respectively at least when the duration timers of two long-period DRX process the active state, determining that the terminal has discontinuous reception capability when the long-period DRX is configured.
Optionally, in the above method, the duration of the short period configured for the terminal by the network side is included in 2 to 10 short periods.
Optionally, in the foregoing method, the duration of the short period configured for the terminal by the network side is 3 short periods.
The invention also discloses a terminal device, which at least comprises a receiving unit and a sending unit, wherein:
the receiving unit receives a Medium Access Control (MAC) layer user Packet Data Unit (PDU) sent by a network side when a duration timer of short-period Discontinuous Reception (DRX) is in an activated state;
and the sending unit returns hybrid automatic repeat request (HARQ) acknowledgement information ACK to the network side if the receiving unit correctly receives the MAC PDU sent by the network side when the duration timer of the short-period DRX is in an activated state.
Optionally, in the foregoing apparatus, the receiving unit receives, after the discontinuous reception short cycle timer expires and when the duration timer of the long cycle DRX is in an active state, the MAC PDU sent by the network side;
and the sending unit returns HARQ ACK to the network side if the receiving unit correctly receives the MAC PDU sent by the network side when the duration timer of the long-period DRX is in an activated state.
The invention also discloses a network side device, which at least comprises a configuration unit, a first sending unit and a first detection unit, wherein:
the configuration unit configures short-cycle DRX parameters for the terminal;
The first sending unit sends a Media Access Control (MAC) layer user Packet Data Unit (PDU) to the terminal when a duration timer of short-period Discontinuous Reception (DRX) of the terminal is in an active state, and sends the MAC PDU to the terminal again at least when the duration timer of any short-period DRX is in the active state after waiting for the current duration timer to be overtime;
the first detection unit detects whether the terminal returns hybrid automatic repeat request (HARQ) acknowledgement information (ACK) after the first sending unit sends the MAC PDU to the terminal, and respectively returns HARQ ACK when detecting that the terminal at least returns HARQ ACK when duration timers of two short-period DRX are in an activated state, and then the terminal is determined to have discontinuous reception capability when the short-period DRX is configured.
Optionally, the apparatus further includes a second sending unit and a second detecting unit, where:
the second sending unit sends the MAC PDU to the terminal when the duration timer of the long-period DRX is in an active state after waiting for the timeout of the discontinuous reception short-period timer, and sends the MAC PDU to the terminal again when at least the duration timer of any long-period DRX is in the active state after waiting for the timeout of the current duration timer;
The second detection unit detects whether the terminal returns HARQ ACK after the second transmission unit transmits the MAC PDU to the terminal, and determines that the terminal has discontinuous reception capability when the long-period DRX is configured if the terminal returns HARQ ACK when detecting that the terminal respectively returns HARQ ACK when the duration timers of at least two long-period DRX are in an active state.
Optionally, in the above apparatus, the duration of the short period configured by the configuration unit for the terminal is included in 2 to 10 short periods.
Alternatively, in the above-described apparatus,
the duration of the short period configured for the terminal by the configuration unit is 3 short periods.
According to the technical scheme, when the terminal supports DRX, particularly, short-cycle DRX and long-cycle DRX are configured at the same time, and whether the terminal has the capability of discontinuous reception or not is detected.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described in detail with reference to the following examples. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.
Example 1
The present embodiment provides a method for detecting discontinuous reception capability, which is mainly described from a terminal side, and the method at least includes the following operations:
after the network side configures the discontinuous receiving parameters of the terminal and configures the discontinuous receiving parameters of the short period at the same time, when the OnDurationTimer of the short period DRX is in an activated state, if the terminal correctly receives the MACPDU sent by the network side, a HARQ ACK network side is sent;
and after the current OnDurationTimer is overtime, if the terminal correctly receives the MAC PDU sent by the network side again at least when the OnDurationTimer of any short period is in the activated state, then a HARQ ACK is sent to the network side again to assist the network side to determine that the terminal has the discontinuous reception capability when being configured with the short-period DRX.
In addition, after the operation according to the method, after waiting for the expiration of the drxShortCycleTimer, if the terminal correctly receives the MAC PDU sent by the network when the OnDurationTimer of the long-cycle DRX is in an active state, the terminal sends an HARQ ACK to the network side;
after the current OnDurationTimer is overtime, at least when the OnDurationTimer of any long period is in an activated state, the terminal correctly receives the MAC PDU sent by the network side again, and then sends an HARQ ACK to the network side, thereby assisting the network side to determine that the terminal has discontinuous reception capability when configured with the long-period DRX.
The process that the terminal receives the MAC PDU sent by the network side comprises the following steps:
when the OnDurationTimer of the short-period DRX is in an activated state, the terminal receives the MAC PDU on a subframe corresponding to the period of time; similarly, when the OnDurationTimer of the long-cycle DRX is in an active state, the terminal receives the MAC PDU on the subframe corresponding to the time. It should be noted that the present embodiment does not limit the specific position of the subframe where the terminal receives the MAC PDU.
The following embodiment further provides a method for detecting discontinuous reception capability, which is mainly described from a network side, and the method at least includes the following operations:
a network side configures discontinuous receiving parameters of a terminal and configures short-period discontinuous receiving parameters at the same time;
when the OnDurationtimer of the short-period DRX is in an activated state, the network sends MAC PDU to the terminal and detects whether the terminal returns a HARQ ACK to the network side;
after the current OnDurationTimer is overtime and at least one OnDurationTimer of a short period is in an activated state, the network side sends MAC PDU to the terminal again and detects whether the terminal returns an HARQ ACK to the network side;
if the network side detects HARQ ACK returned by the terminal respectively when the OnDurationTimer of at least two short-period DRX is in the active state, the terminal is determined to have discontinuous reception capability when the short-period DRX is configured.
In addition, the method may also detect whether the terminal is DRX capable when long cycle DRX is configured, that is, in addition to the method, the following operations are added:
after waiting for the timeout of the drxShortCycleTimer, when the OnDurationTimer of the long-period DRX is in the activated state, the network sends the MAC PDU to the terminal and detects whether the terminal returns a HARQ ACK to the network side;
after the current OnDurationTimer is overtime, when the OnDurationTimer of at least any long period is in the activated state when being in the activated state, the network side sends the MAC PDU to the terminal again, and detects whether the terminal returns a HARQ ACK to the network side;
if the network side respectively detects HARQ ACKs returned by the terminal within the active state time when at least the OnDurationTimer of two long-period DRX is in the active state, the terminal is determined to have the discontinuous reception capability when the short-period DRX is configured.
When the network side sends the MAC PDU, the MAC PDU is sent on the subframe corresponding to the period of time when the OnDurationTimer of the terminal short-period DRX is in the activated state, and the MAC PDU is sent on the subframe corresponding to the period of time when the OnDurationTimer of the terminal long-period DRX is in the activated state. The specific subframe for transmitting the MAC PDU can be calculated through the configured short-period subframe and the long-period subframe. It should be noted that the present embodiment does not limit the calculation method of the subframe position of the transmitted MAC PDU.
To shorten the test time, the duration of the short period of the network configuration may range from 2 to 10 short periods. Preferably 3 short periods.
In the following description, in a preferred embodiment, a procedure for detecting discontinuous reception capability of a terminal by a network side when short cycle DRX and long cycle DRX are configured simultaneously includes the following operations:
the network side configures and sends a wireless resource link reconfiguration message to the terminal, configures discontinuous receiving parameters and configures a short period at the same time;
after receiving the reconfiguration message, the terminal sends a reconfiguration confirmation message to confirm that the discontinuous reception configuration is successful;
when the OnDurationTimer of the short-period DRX is in an activated state when in the activated state, the network sends MAC PDU to the terminal and detects whether the terminal returns a HARQ ACK to the network side;
when the OnDurationTimer of a certain short period is in the activated state after the current OnDurationTimer is overtime, the network side sends the MAC PDU to the terminal again and detects whether the terminal returns a HARQ ACK to the network side.
After waiting for the timeout of the drxShortCycleTimer, when the OnDurationTimer of the long-period DRX is in the activated state, the network sends the MAC PDU to the terminal and detects whether the terminal returns a HARQ ACK to the network side;
When the OnDurationTimer of a certain long period is in the activated state after the OnDurationTimer is overtime, the network side sends MAC PDU to the terminal and detects whether the terminal returns a HARQ ACK to the network side;
if the terminal returns the HARQ ACK when the 4 detection points, that is, when the onduration timers of the two short-cycle DRX are in the active state and when the onduration timers of the two long-cycle DRX are in the active state, the terminal is considered to pass the test (that is, the terminal has the discontinuous reception capabilities of the short-cycle DRX and the long-cycle DRX), otherwise, the test is considered to fail.
It should be further noted that, when the OnDurationTimer of the short cycle DRX or the long cycle DRX is in an active state, after the network side first sends the MAC PDU to the terminal, the network side may send the MAC PDU again after receiving the HARQ ACK returned by the terminal. Therefore, the utilization rate of system resources can be greatly improved.
Example 2
This embodiment introduces a terminal device, which can implement the DRX detection method described above, and the terminal device at least includes the following units.
A receiving unit, which receives the MAC PDU sent by the network side when the OnDurationTimer of the short-period DRX is in the activated state;
And the sending unit is used for returning HARQ ACK to the network side if the receiving unit is determined to correctly receive the MAC PDU sent by the network side within the time that the OnDurationtimer of the short-period DRX is in the activated state.
In addition, the receiving unit receives the MAC PDU sent by the network side when the OnDurationTimer of the long-cycle DRX is in an active state after the drxShortCycleTimer times out;
at this time, the transmitting unit returns HARQ ACK to the network side if it is determined that the receiving unit correctly receives the MAC PDU transmitted by the network side within the active state time of the OnDurationTimer of the long cycle DRX.
Example 3
This embodiment introduces a network side device, which can implement the DRX detection method described above, and includes at least a configuration unit, a first sending unit, and a first detection unit.
The configuration unit is used for configuring short-cycle DRX parameters for the terminal;
a first transmitting unit, which transmits MAC PDU to the terminal when the OnDurationTimer of the short-period discontinuous reception DRX of the terminal is in the activated state, and after waiting for the current OnDurationTimer to be overtime, transmits MAC PDU to the terminal again at least when the OnDurationTimer of any short-period DRX is in the activated state;
and the first detection unit is used for detecting whether the terminal returns HARQ ACK or not after the first transmission unit transmits the MAC PDU to the terminal, and determining that the terminal has discontinuous reception capability when the terminal is configured with the short-cycle DRX after detecting that the terminal respectively returns the HARQ ACK within the time that the OnDurationTimer of at least two short-cycle DRX is in the activated state.
In addition, the network side device may further detect whether the terminal has DRX capability when the long cycle DRX is configured, and in this case, a second transmitting unit and a second detecting unit need to be added, where:
a second sending unit, which sends the MAC PDU to the terminal when the OnDurationTimer of the long-period DRX is in the active state after waiting for the expiration of the drxShortCycleTimer, and sends the MAC PDU to the terminal again at least when the OnDurationTimer of any long-period DRX is in the active state after waiting for the expiration of the current OnDurationTimer;
and the second detection unit is used for detecting whether the terminal returns HARQ ACK or not after the second sending unit sends the MAC PDU to the terminal, and determining that the terminal has discontinuous receiving capability when the long-period DRX is configured if the terminal is detected to return the HARQ ACK respectively within the time that the OnDurationTimer of at least two long-period DRX is in the activated state.
The present embodiment recommends that the duration of the short period configured for the terminal by the configuration unit is contained within 2 to 10 short periods. The duration of the short period of the preferred configuration is 3 short periods.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present application is not limited to any specific form of hardware or software combination.
The above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. A method for detecting DRX (discontinuous reception) capability, comprising the following steps:
after a network side configures short-period DRX parameters for a terminal, if the terminal correctly receives a Media Access Control (MAC) layer user Packet Data Unit (PDU) sent by the network side when a duration timer of the short-period DRX is in an active state, hybrid automatic repeat request (HARQ) confirmation information ACK is returned to the network side;
and after the current duration timer is overtime, when the terminal at least receives the MAC PDU sent by the network side again when the duration timer of any short-period DRX is in an active state, the terminal returns HARQ ACK to the network side again for determining that the terminal has discontinuous reception capability when being configured with the short-period DRX.
2. The method of claim 1, wherein the method further comprises:
after waiting for the timeout of the discontinuous reception short-period timer, if the terminal correctly receives the MAC PDU sent by the network side when the duration timer of the long-period DRX is in an active state, the HARQ ACK is returned to the network side;
And after the current duration timer is overtime, when the terminal at least receives the MAC PDU sent by the network side again when the duration timer of any long-period DRX is in an active state, the terminal returns HARQ ACK confirmation information to the network side again for determining that the terminal has discontinuous receiving capability when the long-period DRX is configured.
3. A method for detecting DRX (discontinuous reception) capability comprises the following steps:
after a network side configures a short-period DRX parameter for a terminal, when a duration timer of the short-period DRX is in an active state, the network side sends a Media Access Control (MAC) layer user Packet Data Unit (PDU) to the terminal and detects whether the terminal returns hybrid automatic repeat request (HARQ) acknowledgement information (ACK);
after the current duration timer is overtime, the network side at least sends MAC PDU to the terminal when the duration timer of any short-period DRX is in an active state, and detects whether the terminal returns HARQ ACK or not;
and when the network side detects HARQ ACK returned by the terminal respectively when the duration timers of at least two short-period DRX are in an active state, determining that the terminal has discontinuous reception capability when the short-period DRX is configured.
4. The method of claim 3, further comprising:
after waiting for the timeout of a discontinuous reception short-period timer, when a duration timer of a long-period DRX is in an active state, the network side sends an MAC PDU to the terminal to detect whether the terminal returns HARQ ACK or not;
after the current duration timer is overtime, the network side at least sends MAC PDU to the terminal again when the duration timer of any long-period DRX is in an active state;
and when the network side detects HARQ ACK returned by the terminal respectively at least when the duration timers of two long-period DRX process the active state, determining that the terminal has discontinuous reception capability when the long-period DRX is configured.
5. The method of claim 3 or 4,
the duration of the short period configured for the terminal by the network side is contained in 2 to 10 short periods.
6. The method of claim 5,
the duration of the short period configured for the terminal by the network side is 3 short periods.
7. A terminal device characterized by comprising at least a receiving unit and a transmitting unit, wherein:
The receiving unit receives a Medium Access Control (MAC) layer user Packet Data Unit (PDU) sent by a network side when a duration timer of short-period Discontinuous Reception (DRX) is in an activated state;
and the sending unit returns hybrid automatic repeat request (HARQ) acknowledgement information ACK to the network side if the receiving unit correctly receives the MAC PDU sent by the network side when the duration timer of the short-period DRX is in an activated state.
8. The apparatus of claim 7,
the receiving unit receives the MAC PDU sent by the network side when the duration timer of the long-period DRX is in an active state after the discontinuous reception short-period timer is overtime;
and the sending unit returns HARQ ACK to the network side if the receiving unit correctly receives the MAC PDU sent by the network side when the duration timer of the long-period DRX is in an activated state.
9. A network side device is characterized by at least comprising a configuration unit, a first sending unit and a first detection unit, wherein:
the configuration unit configures short-cycle DRX parameters for the terminal;
the first sending unit sends a Media Access Control (MAC) layer user Packet Data Unit (PDU) to the terminal when a duration timer of short-period Discontinuous Reception (DRX) of the terminal is in an active state, and sends the MAC PDU to the terminal again at least when the duration timer of any short-period DRX is in the active state after waiting for the current duration timer to be overtime;
The first detection unit detects whether the terminal returns hybrid automatic repeat request (HARQ) acknowledgement information (ACK) after the first sending unit sends the MAC PDU to the terminal, and respectively returns HARQ ACK when detecting that the terminal at least returns HARQ ACK when duration timers of two short-period DRX are in an activated state, and then the terminal is determined to have discontinuous reception capability when the short-period DRX is configured.
10. The apparatus of claim 9, further comprising a second transmitting unit and a second detecting unit, wherein:
the second sending unit sends the MAC PDU to the terminal when the duration timer of the long-period DRX is in an active state after waiting for the timeout of the discontinuous reception short-period timer, and sends the MAC PDU to the terminal again when at least the duration timer of any long-period DRX is in the active state after waiting for the timeout of the current duration timer;
the second detection unit detects whether the terminal returns HARQ ACK after the second transmission unit transmits the MAC PDU to the terminal, and determines that the terminal has discontinuous reception capability when the long-period DRX is configured if the terminal returns HARQ ACK when detecting that the terminal respectively returns HARQ ACK when the duration timers of at least two long-period DRX are in an active state.
11. The apparatus of claim 9 or 10,
the duration of the short period configured for the terminal by the configuration unit is contained within 2 to 10 short periods.
12. The apparatus of claim 11,
the duration of the short period configured for the terminal by the configuration unit is 3 short periods.
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