CN106535336B - Base station and discontinuous reception processing method thereof - Google Patents

Base station and discontinuous reception processing method thereof Download PDF

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CN106535336B
CN106535336B CN201510587324.4A CN201510587324A CN106535336B CN 106535336 B CN106535336 B CN 106535336B CN 201510587324 A CN201510587324 A CN 201510587324A CN 106535336 B CN106535336 B CN 106535336B
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drx
state
terminal
timer
judging
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CN106535336A (en
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奚水清
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Nanjing ZTE New Software Co Ltd
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Nanjing ZTE New Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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Abstract

The invention discloses a base station and a discontinuous reception processing method thereof, wherein the method comprises the following steps: when the Discontinuous Reception (DRX) state of the maintained terminal is a DRX dormant state, if a Scheduling Request (SR) of the terminal is received, the SR is scheduled, the actual DRX state of the terminal is judged within a set time period, the maintained DRX state of the terminal is adjusted according to a judgment result, and corresponding scheduling behaviors are taken for the terminal according to the adjusted DRX state. The invention effectively ensures that the base station can eliminate the influence of SR virtual detection when configuring DRX, keeps the DRX state consistent with the maintenance of the UE side and reduces the packet loss caused by inconsistent DRX states. Meanwhile, normal SR scheduling processing is not affected.

Description

Base station and discontinuous reception processing method thereof
Technical Field
The invention relates to the technical field of digital mobile communication, in particular to a base station and a discontinuous reception processing method thereof.
Background
In a third generation long Term Evolution (L ong Term Evolution, L TE) system, in order to save battery consumption of a User Equipment (UE, also called a terminal), the system is configured with a Discontinuous Reception (DRX) function.
Fig. 1 shows the basic working principle of DRX, where there is Active Time (Active Time) and dormant Time (Sleeping Time) in one DRX Cycle (DRX Cycle), and when DRX is configured, the UE monitors PDCCH scrambled with C-RNTI (cell radio network temporary identifier), TPC-PUCCH-RNTI (physical uplink control channel TPC command identifier), TPC-PUSCH-RNTI (physical uplink shared channel TPC command identifier), and Semi-Persistent Scheduling C-RNTI (Semi-Persistent Scheduling cell radio network temporary identifier) only in the Active Time.
The OnDuration Timer defines the number of subframes that the UE needs to continuously monitor the PDCCH at the beginning of the DRX cycle.
The DRX inactivity timer defines the number of subframes that the UE needs to continuously monitor the PDCCH after receiving Downlink Control Information (DCI for short) indicating newly transmitted data.
When DRX is configured, the active time of the UE includes a time during which a duration timer or DRX inactivity timer or DRX retransmission timer or contention resolution timer is running; and the time when a Scheduling Request (SR) is suspended; and HARQ (Hybrid Automatic Repeat request) retransmission allocates time when the uplink grant may occur; and after the UE successfully receives the random access response message, the time when the PDCCH indicates that the C-RNTI or the temporary C-RNTI aiming at the UE is newly transmitted is not received.
When the UE needs to upload data and no uplink resource is used for transmission, the UE can request the uplink resource from the base station through the SR, and the base station judges whether the UE has the resource requirement or not through detecting the received SR, and then sends uplink authorization to the UE. The UE can also send SR in DRX dormant time, and the UE enters active time in the time of waiting for uplink authorization.
When the DRX is configured, the base station side also needs to maintain the DRX state of the UE, when the base station judges that the UE is in the inactive time, the UE is not scheduled, and only when the UE is judged to be in the active time, the UE is scheduled. The SR sent by the UE is not limited by the DRX state, so the base station also detects the SR in the non-active time of the UE, if the SR is detected, the UE is considered to enter the active time, the uplink authorization is given to the UE, the DCI0 is sent, and the UE is normally scheduled according to the DRX state of the UE.
Due to the complexity of the radio environment, there is often a case of SR false detection, that is, the UE does not transmit the SR, but the base station erroneously detects the SR due to interference of the radio environment and the like. When the base station detects the SR virtually in the DRX working mode, the DRX states of the base station side and the UE side are inconsistent, and further, the problems of abnormal wireless links and the like occur. For example, the base station may detect the SR during the DRX sleep state, and start the DRX inactivity timer to enter the DRX active state, while the UE is in the actual DRX state or in the sleep state. At this time, if the base station performs downlink data transmission, the UE cannot receive the downlink data because the UE does not detect the PDCCH, which may cause packet loss, or even cause abnormal drop due to the maximum number of retransmissions of the downlink data.
Disclosure of Invention
The invention provides a base station and a discontinuous reception processing method thereof, which are used for solving the problem that in the prior art, when SR (scheduling request) is detected falsely, the DRX state maintained by the base station is inconsistent with the UE side, and packet loss affects the communication quality.
According to an aspect of the present invention, a discontinuous reception processing method for a base station is provided, and is applied to a base station side, and the method includes:
when the maintained DRX state of the terminal is a DRX dormant state, if a scheduling request SR of the terminal is received, scheduling the SR, judging the actual DRX state of the terminal in a set time period, adjusting the maintained DRX state of the terminal according to a judgment result, and taking corresponding scheduling action for the terminal according to the adjusted DRX state.
Optionally, in the method of the present invention, the determining the actual DRX state of the terminal within the set time period includes:
starting a preset SR judgment timer, and modifying the maintained state of the terminal into a DRX SR judgment state; and under timing constraint, judging whether the DRX state of the terminal is a dormant state or an active state.
Optionally, in the method of the present invention, under timing constraint, the DRX state of the terminal is determined according to a feedback condition of an uplink CRC result of the terminal and an operation condition of a DRX-related timer of the terminal maintained by a base station side, in combination with a condition that a sleep state and an active state should satisfy.
Optionally, in the method of the present invention, the determining the DRX state of the terminal according to a feedback condition of an uplink CRC result of the terminal and an operation condition of a DRX-related timer of the terminal maintained by a base station side under a timing constraint, in combination with a condition that a sleep state and an active state should be satisfied, includes:
when the SR judgment timer does not time out, judging whether uplink data with correct CRC is received or not, if the uplink data with correct CRC is received, stopping the SR judgment timer, judging whether any DRX related timer meeting the activation state of the terminal is in operation or not, and if the DRX related timer meeting the activation state of the terminal is in operation, judging that the terminal is in the DRX activation state; otherwise, judging the terminal to be in a DRX dormant state; if not, judging whether a DRX duration timer is running and a newly transmitted schedule exists during the running, if so, stopping the SR judgment timer, and judging that the terminal is in a DRX activation state; otherwise, repeating the above judging process until the SR timer is overtime;
when the SR judgment timer is overtime, judging whether only DRX InactivetyTimer is operated at present, if so, stopping the DRX InactivetyTimer, and judging that the terminal is in a DRX dormant state; otherwise, the terminal is judged to be in a DRX activation state.
Optionally, in the method of the present invention, the timing duration of the SR decision timer is a duration between the SR received from the base station and the last DCI0 retransmission scheduled by the SR for the maximum retransmission number.
Optionally, the method of the present invention further comprises:
when the maintained DRX state of the terminal is a DRX SR judgment state, if the SR of the terminal is received, scheduling the SR, restarting the SR judgment timer, judging whether the DRX state of the terminal is a dormant state or an active state under timing constraint, adjusting the maintained DRX state of the terminal according to a judgment result, and taking corresponding scheduling behavior for the terminal according to the adjusted DRX state.
According to another aspect of the present invention, there is also provided a base station, including:
the detection module is used for triggering the scheduling module and the judgment module if a scheduling request SR of the terminal is received when the DRX state of the terminal maintained by the base station is a DRX dormant state;
the scheduling module is used for scheduling the SR and taking corresponding scheduling action for the terminal according to the DRX state of the terminal obtained by the judgment of the judging module;
and the judging module is used for judging the actual DRX state of the terminal in a set time period and adjusting the maintained DRX state of the terminal according to a judging result.
Optionally, in the base station of the present invention, the decision module is specifically configured to start a preset SR decision timer, and modify a state of the terminal to be maintained to a DRX SR decision state; and under timing constraint, judging whether the DRX state of the terminal is a dormant state or an active state.
Optionally, in the base station of the present invention, the determining module is specifically configured to determine the DRX state of the terminal according to a feedback condition of an uplink CRC result of the terminal and an operation condition of a DRX-related timer of the terminal maintained by the base station side under a timing constraint, in combination with a condition that a sleep state and an active state should be satisfied.
Optionally, in the base station of the present invention, the determining module is specifically configured to determine whether uplink data with correct CRC is received when the SR determining timer does not time out, stop the SR determining timer if the uplink data with correct CRC is received, determine whether any DRX-related timer meeting an active state of the terminal is running, and determine that the terminal is in a DRX active state if the DRX-related timer meeting the active state of the terminal is running; otherwise, judging the terminal to be in a DRX dormant state; if not, judging whether a DRX duration timer is running and a newly transmitted schedule exists during the running, if so, stopping the SR judgment timer, and judging that the terminal is in a DRX activation state; otherwise, repeating the above judging process until the SR timer is overtime; when the SR judgment timer is overtime, judging whether only DRX InactivetyTimer is operated at present, if so, stopping the DRX InactivetyTimer, and judging that the terminal is in a DRX dormant state; otherwise, the terminal is judged to be in a DRX activation state.
Optionally, in the base station of the present invention, the timing duration of the SR decision timer is a duration between the SR received from the base station and the last DCI0 retransmission scheduled by the SR for the maximum retransmission number.
Optionally, in the base station of the present invention:
the detection module is further configured to trigger the scheduling module and the decision module if a scheduling request SR of the terminal is received when the DRX state of the terminal maintained by the base station is a DRX SR decision state;
the scheduling module is configured to schedule the SR and take a corresponding scheduling action for the terminal according to the DRX state of the terminal obtained by the decision of the decision module;
the judging module is further configured to restart the SR judging timer, judge whether the DRX state of the terminal is a dormant state or an active state under timing constraint, and adjust the maintained DRX state of the terminal according to a judgment result.
The invention has the following beneficial effects:
the invention provides a processing scheme for discontinuous reception, which realizes that a terminal can only carry out uplink scheduling of an SR and can not carry out other scheduling within a period of time from the time when a base station receives the SR to the time when the SR is confirmed to be virtual detection, and corresponding scheduling behaviors are carried out according to the judged actual DRX state of the terminal until the SR is judged not to be virtual detection.
The invention effectively ensures that the base station can eliminate the influence of SR virtual detection when configuring DRX, keeps the DRX state consistent with the maintenance of the UE side and reduces the packet loss caused by inconsistent DRX states. Meanwhile, normal SR scheduling processing is not affected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a DRX periodic operation principle in the prior art;
fig. 2 is a flowchart of a discontinuous reception processing method of a base station according to an embodiment of the present invention;
fig. 3 is a flowchart of a discontinuous reception processing method of a base station according to a second embodiment of the present invention;
fig. 4 is a transition diagram for implementing three DRX states in the method according to the second embodiment of the present invention;
fig. 5 is a timing diagram of a specific application example provided in the second embodiment of the present invention;
fig. 6 is a block diagram of a base station according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
An embodiment of the present invention provides a discontinuous reception processing method for a base station, which is applied to a base station side, and as shown in fig. 2, the method includes the following steps:
step S201, when the maintained DRX state of the terminal is a DRX dormant state, receiving a scheduling request SR of the terminal;
step S202, scheduling the SR, judging the actual DRX state of the terminal in a set time period, adjusting the maintained DRX state of the terminal according to the judgment result, and taking corresponding scheduling action for the terminal according to the adjusted DRX state.
During specific implementation, starting a preset SR judgment timer, and modifying the maintained state of the terminal into a DRX SR judgment state; and under timing constraint, judging whether the DRX state of the terminal is a dormant state or an active state.
Wherein, the SR decision timer has the following functions: indicating a period of time during which the SR is detected but whether the SR is falsely detected is not confirmed in the DRX sleep state. Only SR is scheduled in the period of time, other scheduling is not carried out, and the base station is prevented from entering a DRX activation state in advance and causing packet loss due to inconsistency with the DRX state maintained by the UE side.
The timing duration of the SR decision timer is preferably the duration between the SR received from the base station and the last DCI0 retransmission scheduled for the maximum number of retransmissions by the SR.
Furthermore, in the embodiment of the present invention, considering that the base station scheduler knows the DRX configuration parameters of the UE, the operation status of the DRX related timer can be calculated according to the DRX configuration and the uplink and downlink scheduling conditions of the UE. Therefore, in the embodiment of the present invention, under the timing constraint, preferably, the DRX state of the terminal is determined according to the feedback condition of the uplink CRC result of the terminal and the operation condition of the DRX-related timer of the terminal maintained by the base station side, in combination with the condition that the dormant state and the active state should satisfy.
In a specific embodiment of the present invention, the process of determining the DRX state of the terminal is specifically as follows:
when the SR judgment timer does not time out, judging whether uplink data with correct CRC is received;
if uplink data with correct CRC are received, the SR judgment timer is stopped, whether any DRX related timer meeting the activation state of the terminal runs or not is judged, and if yes, the terminal is judged to be in the DRX activation state; otherwise, judging the terminal to be in a DRX dormant state;
if not, judging whether a DRX duration timer is running and a newly transmitted schedule exists during the running, if so, stopping the SR judgment timer, and judging that the terminal is in a DRX activation state; otherwise, repeating the above judging process until the SR timer is overtime;
when the SR judgment timer is overtime, judging whether only DRX InactivetyTimer is operated at present, if so, stopping the DRX InactivetyTimer, and judging that the terminal is in a DRX dormant state; otherwise, the terminal is judged to be in a DRX activation state.
Further, in the embodiment of the present invention, when the maintained DRX state of the terminal is a DRX SR decision state, if the SR of the terminal is received, the SR is scheduled, the SR decision timer is restarted, and under the timing constraint, whether the DRX state of the terminal is a sleep state or an active state is decided, the maintained DRX state of the terminal is adjusted according to the decision result, and a corresponding scheduling behavior is performed according to the adjusted DRX state.
In summary, the present invention provides a discontinuous reception scheme in a mobile communication network, so that a base station can ensure normal SR scheduling and ensure the consistency of DRX states of the base station and UE in a SR virtual detection scenario. When the UE configures the DRX, the problem of inconsistent DRX states of the base station and the UE is effectively solved, and further the occurrence of packet loss is reduced.
Example two
The embodiment of the invention provides a discontinuous reception processing method for a base station, which explains the method in the first embodiment in more detail by disclosing more technical details.
In the implementation, the base station scheduler knows the DRX configuration parameters of the UE, and can calculate the operation status of the DRX related timer according to the DRX configuration and the uplink and downlink scheduling conditions of the UE, and know whether the UE is in DRX active time. The scheduler needs to maintain an SR decision timer for each UE configured with DRX, and the SR decision timer is started when the base station receives an SR of the UE in the DRX sleep state. And during the running period of the SR judgment timer, if the SR of the UE is received again, the timer is restarted. And stopping when the SR judgment meets the set stopping condition. Wherein the stop condition includes: 1) ending the operation; 2) stopping when a CRC correct result of the uplink data is received; 3) the OnDuration Timer runs and stops when there is a new transmission schedule in between.
Based on the above configuration, if the base station detects the SR in the DRX sleep state, the base station performs uplink authorization on the UE, sends DCI0, and starts an SR decision timer. If the SR is not the false detection, the UE enters a DRX activated state after sending the SR and waits for receiving DCI0, after receiving the DCI, the UE sends uplink data, if the base station detects that the CRC (cyclic redundancy check code) of the uplink data is correct, the SR is really sent by the UE, at the moment, the SR judgment timer is stopped, the DRX state is judged according to the operation of other DRX timers, and the consistency of the DRX state maintenance with the UE side can be maintained. If the SR decision timer runs to timeout and terminates, which means that no uplink data with correct CRC is detected after SR scheduling reaches the maximum retransmission number, it is considered that SR is likely to be a false detection, and the UE is in a sleep state, so that the UE does not detect DCI0 and send uplink data. At this time, if only the inactivity timer runs, it indicates that the UE is still in the DRX dormant state, the inactivity timer is started after the base station schedules the false detection SR, and the UE cannot start the inactivity timer if the DCI0 is not detected in the dormant state, at this time, the base station needs to stop the inactivity timer, set the UE state to the DRX dormant state, and keep the DRX state consistent with the DRX state of the UE side. If the Ondusiontimer is started during the operation period of the SR decision timer, the UE also enters a DRX active state at the time, the base station can schedule new transmission, and if the new transmission is scheduled, the SR decision timer is stopped, and the consistency of the DRX state maintenance with the UE is ensured through the operation of other DRX timers.
The method of the present embodiment is further described in detail below with reference to the accompanying drawings.
Fig. 3 is a flowchart illustrating a discontinuous reception process performed by a base station within one subframe. The base station needs to first determine the current maintained DRX state of the UE, which includes the following three states: DRX active state, DRX dormant state, and DRX SR decision state.
Secondly, entering different processing flows according to different maintained DRX states of the UE, wherein the specific processing is as follows:
the currently maintained DRX state of the UE is a DRX active state: and normally scheduling the UE.
The currently maintained DRX state of the UE is a DRX dormant state: judging whether an SR is received or not, if the SR is received, scheduling the SR, starting an SR judgment timer, and modifying the UE state into a DRX SR judgment state; if no SR is received, the UE is not scheduled.
The currently maintained DRX state of the UE is a DRX SR judgment state: and judging the actual DRX state of the UE according to whether the SR judgment timer is overtime or not.
The specific decision on the actual DRX state of the UE according to whether the SR decision timer is out of time is as follows:
-if the SR timer times out, determining whether only DRX inactivity timer is currently running, if so, stopping DRX inactivity timer, modifying the maintained DRX state of the UE to a DRX dormant state; otherwise, the DRX state of the UE is modified to be a DRX active state.
-if the SR timer has not timed out, determining whether uplink data with correct CRC is received, and performing the following processing:
-if uplink data with correct CRC is received, stopping the SR decision timer and determining if any DRX timer meeting the UE active state is running, if so, modifying the DRX state of the UE to the DRX active state; otherwise, the DRX state of the UE is modified into a DRX dormant state.
-if no uplink data with correct CRC is received, determining whether there is a new scheduling during the OnDurationTimer operation, if so, stopping the SR decision timer, and modifying the DRX state of the UE to a DRX active state; otherwise, the SR judgment state is kept, only new transmission and retransmission of the SR can be scheduled, and other scheduling cannot be carried out.
In general, the base station determines what scheduling action to take for the UE by determining the DRX state the UE is in. The scheduling behavior for the UE in the three states is:
1) DRX active state, and normal scheduling can be carried out on uplink and downlink.
2) DRX dormant state, neither uplink nor downlink is scheduled.
3) And in a DRX SR judgment state, the downlink does not schedule UE, and the uplink can only schedule new transmission and retransmission of the SR.
Further, in this embodiment, according to the operation condition of the SR decision timer and the condition that the UE is in the DRX active state, the three DRX states proposed by the present invention are further determined as follows:
1) the conditions in the DRX active state are: a) the time when the OnDuration Timer or the DRX retransmission Timer or the competition resolving Timer runs; b) InactivtyTimer runs and the SR judges the time that the timer does not run; c) time of uplink HARQ retransmission scheduling; d) and sending a random access response till the time of the first new DCI transmission.
2) The conditions in the DRX SR decision state are: the time when the SR decision Timer runs and neither the OnDuration Timer nor the DRX retransmission Timer nor the contention resolution Timer runs;
3) the conditions in the DRX sleep state are: after the DRX is started, the UE which does not belong to the two states is in a dormant state.
Fig. 4 shows transition diagrams of three DRX states implemented by the method of the present invention. As can be seen from the figure, the conditions for the three state transitions are:
1) the active state is converted into the dormant state: the conditions in the active state required in the protocol are no longer met.
2) The dormant state is converted into the active state: the OndurationTimer starts.
3) The dormant state is converted into an SR judgment state: an SR is received.
4) The SR judgment state is converted into a dormant state: the SR decision timer is overtime stopped, and no other timer meeting the UE activation state runs, or only the DRX InactivetyTimer runs; or stopping the SR decision timer after receiving the uplink data with correct CRC, and running no other timer meeting the UE activation state.
5) The SR judgment state is converted into an active state: receiving uplink data with correct CRC, and running any timer meeting the UE activation state; or during the SR decision timer running, the OndurationTimer is started.
6) The active state is converted into an SR decision state: the operation is terminated after the OndurationTimer is started, and the SR decision timer is running.
In order to more clearly illustrate the embodiment process of the present invention, a specific application example of the present invention is given below, as shown in fig. 5, which is a timing chart of the application example, in which:
at the moment (1), the UE is in a DRX dormant state, the SR is detected and scheduled, and the SR decision timer is started to enter a SR decision state.
At time (2), DCI0 granting SR uplink is issued, and the inactivytytytimer is started.
At time (3), on the time frequency resource corresponding to the DCI0 authorized in the uplink, the base station receives uplink transmission data with correct CRC, which indicates that the SR is not a dummy check, stops the SR decision timer, and enters a DRX active state because the inactivity timer is running at this time.
At time (4), the inactivity timer operation is terminated, and the DRX sleep state is entered from the DRX active state.
At the moment (5), the UE is in the DRX dormant state, the SR is detected virtually, the base station does not know that the SR is detected virtually, schedules the SR, starts the SR judgment timer and enters the SR judgment state.
At time (6), DCI0 granting SR uplink is issued, and the inactivytytytimer is started. Since the UE is not in the SR state and is in the DRX sleep state all the time, the DCI0 cannot be detected, and thus the base station cannot receive uplink data with correct CRC all the time.
At time (7), the SR decision timer runs overtime and ends, only the inactivity timer runs at this time, the inactivity timer is stopped, and the DRX sleep state is entered from the SR decision state.
Between the time (1) and the time (3), the scheduling is in an SR judgment state, only the SR can be scheduled, and other new transmission scheduling cannot be carried out.
Between times (3) and (4), the UE may be scheduled in a DRX active state.
Between the time (5) and the time (7), the scheduling is in an SR judgment state, only the SR can be scheduled, and other new transmission scheduling cannot be carried out.
In summary, it can be seen that the present invention maintains the DRX state of the UE on the base station side for the UE configured with DRX, and performs scheduling according to the DRX state. And the downlink and uplink scheduling DCI can be issued in the DRX active time of the UE. The method marks a period of time from receiving the SR to confirming whether the SR is the virtual detection or not through the DRX SR judgment state, and in the period of time, the UE can only carry out uplink scheduling on the SR and can not carry out other scheduling until the SR is judged not to be the virtual detection or the DRX activation state of the UE is ensured through the starting of timers such as an Ondurationtimer and the like.
The invention effectively ensures that the base station can eliminate the influence of SR virtual detection when configuring DRX, keeps the DRX state consistent with the maintenance of the UE side and reduces the packet loss caused by inconsistent DRX states. Meanwhile, normal SR scheduling processing is not affected.
EXAMPLE III
An embodiment of the present invention provides a base station, as shown in fig. 6, including:
a detection module 610, configured to trigger the scheduling module 620 and the decision module 630 if a scheduling request SR of the terminal is received when the DRX state of the terminal maintained by the base station is a DRX dormant state;
a scheduling module 620, configured to schedule the SR, and take a corresponding scheduling action for the terminal according to the DRX state of the terminal determined by the determining module 630;
a decision module 630, configured to decide an actual DRX state of the terminal within a set time period, and adjust the maintained DRX state of the terminal according to a decision result.
Based on the above structural framework and implementation principle, several specific and preferred embodiments under the above structure are given below to refine and optimize the functions of the base station of the present invention, so as to make the implementation of the scheme of the present invention more convenient and accurate. The method specifically comprises the following steps:
in the embodiment of the present invention, the decision module 630 is specifically configured to start a preset SR decision timer, and modify the state of the terminal to be maintained to a DRX SR decision state; and under timing constraint, judging whether the DRX state of the terminal is a dormant state or an active state.
In a preferred embodiment of the present invention, the determining module 630 determines the DRX state of the terminal according to the feedback condition of the uplink CRC result of the terminal and the operation condition of the DRX related timer of the terminal maintained by the base station side under the timing constraint, in combination with the condition that the dormant state and the active state should satisfy.
In an embodiment of the present invention, the decision module 630 specifically performs the following decision processing:
when the SR judgment timer does not time out, judging whether uplink data with correct CRC is received or not, if the uplink data with correct CRC is received, stopping the SR judgment timer, judging whether any DRX related timer meeting the activation state of the terminal is in operation or not, and if the DRX related timer meeting the activation state of the terminal is in operation, judging that the terminal is in the DRX activation state; otherwise, judging the terminal to be in a DRX dormant state; if not, judging whether a DRX duration timer is running and a newly transmitted schedule exists during the running, if so, stopping the SR judgment timer, and judging that the terminal is in a DRX activation state; otherwise, repeating the above judging process until the SR timer is overtime;
when the SR judgment timer is overtime, judging whether only DRX InactivetyTimer is operated at present, if so, stopping the DRX InactivetyTimer, and judging that the terminal is in a DRX dormant state; otherwise, the terminal is judged to be in a DRX activation state.
In this embodiment of the present invention, the timing duration of the SR decision timer is preferably, but not limited to, a duration between the SR received from the base station and the last DCI0 retransmission scheduled by the SR for the maximum retransmission number.
Further, in the embodiment of the present invention:
the detection module 610, when the DRX state of the terminal maintained by the base station is a DRX SR decision state, if a scheduling request SR of the terminal is received, triggers the scheduling module 620 and the decision module 630;
a scheduling module 620, configured to schedule the SR, and take a corresponding scheduling action for the terminal according to the DRX state of the terminal determined by the determining module 630;
the decision module 630 is further configured to restart the SR decision timer, decide whether the DRX state of the terminal is in the dormant state or in the active state under timing constraint, and adjust the maintained DRX state of the terminal according to a decision result.
In conclusion, the base station can ensure normal scheduling of the SR and ensure consistency of DRX states of the base station and the UE in a SR virtual detection scene. When the UE configures the DRX, the problem of inconsistent DRX states of the base station and the UE is effectively solved, and further the occurrence of packet loss is reduced.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. Especially for the device embodiment, because it is basically similar to the method embodiment, the description is simple, and the relevant points can be referred to the partial description of the method embodiment.
Although the present application has been described with reference to embodiments, those skilled in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A discontinuous reception processing method of a base station is applied to a base station side, and the method comprises the following steps:
when the Discontinuous Reception (DRX) state of the maintained terminal is a DRX dormant state, if a Scheduling Request (SR) of the terminal is received, scheduling the SR, starting a preset SR judgment timer, and modifying the maintained state of the terminal into a DRX SR judgment state; under timing constraint, according to the feedback condition of the uplink CRC result of the terminal and the running condition of the DRX related timer of the terminal maintained by the base station side, and combining the conditions which are satisfied by the dormant state and the active state, judging the DRX state of the terminal; adjusting the maintained DRX state of the terminal according to the judgment result, and taking corresponding scheduling action for the terminal according to the adjusted DRX state;
under the timing constraint, the judging of the DRX state of the terminal according to the feedback condition of the uplink CRC result of the terminal and the operation condition of the DRX related timer of the terminal maintained by the base station side and the condition which is satisfied by the dormant state and the active state comprises the following steps:
when the SR judgment timer is overtime, judging whether only a DRX (discontinuous reception) static timer runs currently, if so, stopping the DRX static timer, and judging that the terminal is in a DRX dormant state; otherwise, the terminal is judged to be in a DRX activation state.
2. The method of claim 1, wherein under the timing constraint, determining the DRX state of the terminal according to the feedback condition of the uplink CRC result of the terminal and the operation condition of the DRX-related timer of the terminal maintained by the base station side, in combination with the condition that the dormant state and the active state should satisfy, comprises:
when the SR judgment timer does not time out, judging whether uplink data with correct CRC is received or not, if the uplink data with correct CRC is received, stopping the SR judgment timer, judging whether any DRX related timer meeting the activation state of the terminal is in operation or not, and if the DRX related timer meeting the activation state of the terminal is in operation, judging that the terminal is in the DRX activation state; otherwise, judging the terminal to be in a DRX dormant state; if not, judging whether a DRX duration timer is running and a newly transmitted schedule exists during the running, if so, stopping the SR judgment timer, and judging that the terminal is in a DRX activation state; otherwise, repeating the above judging process until the SR timer is overtime.
3. The method of claim 2, wherein the timing duration of the SR decision timer is a duration between receiving an SR from a base station and a last DCI0 retransmission for which the SR is scheduled for a maximum number of retransmissions.
4. The method of claim 2, wherein the method further comprises:
when the maintained DRX state of the terminal is a DRX SR judgment state, if the SR of the terminal is received, scheduling the SR, restarting the SR judgment timer, judging whether the DRX state of the terminal is a dormant state or an active state under timing constraint, adjusting the maintained DRX state of the terminal according to a judgment result, and taking corresponding scheduling behavior for the terminal according to the adjusted DRX state.
5. A base station, comprising:
the detection module is used for triggering the scheduling module and the judgment module if a scheduling request SR of the terminal is received when the DRX state of the terminal maintained by the base station is a DRX dormant state;
the scheduling module is used for scheduling the SR and taking corresponding scheduling action for the terminal according to the DRX state of the terminal obtained by the judgment of the judging module;
the judging module is used for starting a preset SR judging timer and modifying the maintained state of the terminal into a DRXSR judging state; under timing constraint, according to the feedback condition of the uplink CRC result of the terminal and the running condition of the DRX related timer of the terminal maintained by the base station side, and combining the conditions which are satisfied by the dormant state and the active state, judging the DRX state of the terminal; when the SR judgment timer is overtime, judging whether only a DRX (discontinuous reception) static timer runs currently, if so, stopping the DRX static timer, and judging that the terminal is in a DRX dormant state; otherwise, judging the terminal to be in a DRX activation state; and adjusting the maintained DRX state of the terminal according to the judgment result.
6. The base station of claim 5, wherein the decision module is specifically configured to, when the SR decision timer does not time out, determine whether uplink data with correct CRC is received, if the uplink data with correct CRC is received, stop the SR decision timer, and determine whether any DRX-related timer that satisfies an active state of the terminal is running, if so, determine that the terminal is in a DRX active state; otherwise, judging the terminal to be in a DRX dormant state; if not, judging whether a DRX duration timer is running and a newly transmitted schedule exists during the running, if so, stopping the SR judgment timer, and judging that the terminal is in a DRX activation state; otherwise, repeating the above judging process until the SR timer is overtime.
7. The base station of claim 6, wherein the timing duration of the SR decision timer is a duration between receipt of the SR from the base station and a last DCI0 retransmission for which the SR is scheduled for a maximum number of retransmissions.
8. The base station of claim 6,
the detection module is further configured to trigger the scheduling module and the decision module if a scheduling request SR of the terminal is received when the DRX state of the terminal maintained by the base station is a DRX SR decision state;
the scheduling module is configured to schedule the SR and take a corresponding scheduling action for the terminal according to the DRX state of the terminal obtained by the decision of the decision module;
the judging module is further configured to restart the SR judging timer, judge whether the DRX state of the terminal is a dormant state or an active state under timing constraint, and adjust the maintained DRX state of the terminal according to a judgment result.
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