CN104320856A - DRX (Discontinuous Reception) state terminal scheduling method and apparatus - Google Patents

DRX (Discontinuous Reception) state terminal scheduling method and apparatus Download PDF

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Publication number
CN104320856A
CN104320856A CN201410558639.1A CN201410558639A CN104320856A CN 104320856 A CN104320856 A CN 104320856A CN 201410558639 A CN201410558639 A CN 201410558639A CN 104320856 A CN104320856 A CN 104320856A
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terminal
threshold value
base station
state
signal
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CN104320856B (en
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李楠楠
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1278Transmission of control information for scheduling
    • H04W72/1289Transmission of control information for scheduling in the downlink, i.e. towards the terminal

Abstract

The invention relates to the field of communication and discloses a DRX state terminal scheduling method and apparatus for solving the problem of inconsistency of a base station with a terminal in a DRX scene. The method includes the steps of comparing a received signal to noise ratio of the scheduling request with a preset first threshold value and a preset second threshold value through the base station to determine whether the signal to noise ratio of the scheduling request is lower than the first threshold value and higher than the second threshold value or not, if so, setting a basic MCS (Modulation and Coding Scheme) level for the terminal according to the last saved AMC (Alternative Media Center) information, scheduling the terminal to transmit a PUSCH (Physical Uplink Shared Channel) signal according to the basic MCS level, determining whether the received PUSCH signal is transmitted from the terminal or not, and maintaining or changing the state of the base station according to the determination result. Therefore, the base station can determine whether the received scheduling request is false alarm or not in the DRX scene, so that the problem of uplink and downlink data transmission errors due to state inconsistency of the base station with the terminal is solved, and accordingly communication barriers and interference to other users due to scheduling errors are avoided.

Description

A kind of method of terminal scheduling of DRX state and device
Technical field
The present invention relates to the communications field, particularly relate to a kind of method and device of terminal scheduling of DRX state.
Background technology
At Long Term Evolution (the Long Term Evolution of 3-G (Generation Three mobile communication system), LTE) in system, discontinuous reception (Discontinuous Reception, DRX) timing wake-up is passed through in the application of technology, terminal system resource distribution can be optimized, saving power, and the effect reaching power saving, thus the stand-by time extending terminal.
In prior art, the media interviews that DRX function controlled entity in LTE system is positioned at protocol stack control (Medium Access Control, MAC) layer, its major function controls to send instruction to physical layer, notice physical layer is at specific time monitoring Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH).
Particularly, if terminal connects (Radio Resource Control Connected at radio resource control, RRC_CONNECTED) state, terminal uses the working specification of DRX, discontinuous monitoring PDCCH, DRX realization mechanism adopts multiple timer to coordinate running to ensure the reception of downlink data and uplink authorization, the timer relevant to DRX mainly contains: duration timer (On-Duration Timer), the static timer of DRX (DRX-Inactivity Timer), DRX retransmission timer (DRX-Retransmission Timer), contention resolved timer (MAC-Contention Resolution Timer), four kinds of timer run durations will be opened reception antenna and monitor PDCCH, all the other times can not open reception antenna, be in sleep state.
In normal operation situation, base station can keep the DRX working method identical with terminal, and understanding terminal is in activated state or sleep state in real time, therefore ensures to transmit data at activator appliance, can not carry out transfer of data in sleep period.
But in LTE system, base station often can detect the dispatch request of false-alarm, namely terminal is in inactive state and does not need to send data, and the mistaken verdict that signal arrives but is made in base station.In prior art, Uplink Control Channel (Physical Uplink Control Channel physically, PUCCH) dispatch request of upper carrying has allowed a certain proportion of false-alarm, namely, base station is when the dispatch request of false-alarm being detected, the DRX flow performing according to protocol requirement can be continued, but because in fact terminal does not send real dispatch request, so DRX-Inactivity Timer can not be started, like this, the inconsistent situation of DRX state will be there is in base station and terminal, the decode results of the up-downgoing data of base station scheduling will be caused to be all NACK, i.e. non-response, there is up-downgoing data transmission fault.Particularly, base station can perform following operation:
Alternate medial center (Alternate Media Center, AMC) think terminal eat dishes without rice or wine channel condition be deteriorated, then can lower modulation and coding strategy (the Modulation and Coding Scheme of scheduling, MCS) grade, reduce throughput when single is effectively dispatched, terminal can be caused like this when activated state sends data, a Signaling Radio Bearer (Signaling Radio Bearer, SRB) signaling bag needs sliced transmission, increase overall time delay, cause the communication barrier;
Base station think terminal eat dishes without rice or wine channel condition be deteriorated, can based on power headroom reporting (PHR) (the Power Headroom Report preserved when last time mates, the power control information such as PHR), send to terminal and raise TPC command word, raise is this time the power resource of terminal distribution, like this, cause terminal and base station when just mating, power parameter will inevitably be upgraded according to the TPC command word of base station rise, namely transmitting power is raised, if terminal does not send data and again enter DRX state, just cannot receive the TPC command word of downward, if and repeat said process, terminal can be caused always only to receive and to raise TPC command word, cause terminal when activated state sends data, the large transmitting power after raising continuously can be used, thus interference is caused to the user of other users or other communities in community.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of terminal scheduling of DRX state, in order to solve base station and the inconsistent problem of SOT state of termination under DRX scene.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A method for the terminal scheduling of DRX state, comprising:
Base station receiving scheduling request, and the signal to noise ratio of dispatch request and the first threshold value preset and the second threshold value are compared, obtain comparative result, wherein, the first threshold value is higher than the second threshold value;
Base station is according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, according to the last alternate medial center AMC information pointer preserved, basic MCS grade is arranged to terminal, and send PUSCH signal according to basic MCS grade dispatch terminal;
Base station judges whether to receive the PUSCH signal that terminal truly sends, if so, then the DRX state of the terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the terminal of local record is continued to maintain sleep state.
Like this, under DRX scene, base station can judge whether the dispatch request received is false-alarm, solves because of base station and the inconsistent and problem of up-downgoing data transmission fault that causes of SOT state of termination, avoids mistake scheduling and the own communication barrier that causes and the interference to other users.
Preferably, if base station is according to comparative result, determine that the signal to noise ratio of dispatch request is higher than the first threshold value preset, then base station judges that the dispatch request that this receives is authentic and valid, and the DRX state of local record terminal is converted to activated state by sleep state;
If base station is according to comparative result, determine that the signal to noise ratio of dispatch request is lower than the second threshold value preset, then base station judges that this dispatch request received is as false-alarm, and the DRX state of local record terminal is continued to maintain sleep state.
Preferably, base station, according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, arranges basic MCS grade according to the last AMC information pointer preserved to terminal, comprising:
Base station, according to last AMC information of preserving, is determined corresponding target MCS grade for terminal, and target MCS grade is reduced N number of grade, obtain basic MCS grade, and wherein, target MCS grade characterizes the channel condition of eating dishes without rice or wine of the terminal of last record.
Like this, the physical transmission rate corresponding according to basic MCS grade, ensure that terminal is when channel condition of eating dishes without rice or wine is the poorest, also can send PUSCH signal to base station, can avoid eating dishes without rice or wine bad channel conditions and cause normally sending the problem of PUSCH signal because of terminal.
Preferably, base station judges whether to receive the PUSCH signal that terminal truly sends, and comprising:
Any one in signal to noise ratio, absolute power and the decode results three kinds of state informations comprised in the PUSCH signal received and predetermined threshold value compare by base station, or, the combination of any several state information and each self-corresponding predetermined threshold value are compared, record comparative result, wherein
If all parameters all reach corresponding predetermined threshold value, then base station judges that the PUSCH signal that this receives is that terminal truly sends, and the DRX state of local record terminal is converted to activated state by sleep state;
If any parameter does not reach corresponding predetermined threshold value, then base station judges that PUSCH signal nonterminal that this receives truly sends, and dispatch request is false-alarm, then the DRX state of local record terminal continues to maintain sleep state by base station.
Preferably, if base station judges that receiving PUSCH signal is that terminal truly sends, then base station is optimized basic MCS grade, and revises AMC information according to the MCS grade after optimizing, like this, the negative influence of basic MCS grade to dispatching office generation next time can be reduced;
If base station judges to receive PUSCH signal and nonterminal truly sends, then do not carry out the correction of AMC information.
Preferably, if the DRX state of local record terminal is converted to activated state from sleep state by base station, then according to dispatch request, PUCCH closed-loop power control is carried out to terminal, and according to PUSCH power information, PUSCH closed-loop power control is carried out to terminal;
If the DRX state of local record terminal continues to maintain sleep state by base station, then do not carry out closed-loop power control.
Like this, avoid base station after receiving the dispatch request of false-alarm, still carry out closed-loop power control for error message.
A device for the terminal scheduling of DRX state, comprising:
Comparing unit, for receiving scheduling request, and the signal to noise ratio of dispatch request and the first threshold value preset and the second threshold value are compared, obtain comparative result, wherein, the first threshold value is higher than the second threshold value;
Setting unit, for the comparative result according to acquisition, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, according to the last alternate medial center AMC information pointer preserved, basic MCS grade is arranged to terminal, and send PUSCH signal according to basic MCS grade dispatch terminal;
Judging unit, for judging whether to receive the PUSCH signal that terminal truly sends, if, then the DRX state of the terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the terminal of local record continued to maintain sleep state.
Like this, under DRX scene, base station can judge whether the dispatch request received is false-alarm, solves because of base station and the inconsistent and problem of up-downgoing data transmission fault that causes of SOT state of termination, avoids mistake scheduling and the own communication barrier that causes and the interference to other users.
Preferably, if described device is according to comparative result, determine that the signal to noise ratio of dispatch request is higher than the first threshold value preset, then described device judges that the dispatch request that this receives is authentic and valid, and the DRX state of local record terminal is converted to activated state by sleep state;
If described device is according to comparative result, determine that the signal to noise ratio of dispatch request is lower than the second threshold value preset, then described device judges that this dispatch request received is as false-alarm, and the DRX state of local record terminal is continued to maintain sleep state.
Preferably, according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, according to the last AMC information pointer preserved, basic MCS grade is arranged to terminal, setting unit specifically for:
According to last AMC information of preserving, determine corresponding target MCS grade, and target MCS grade is reduced N number of grade, obtain basic MCS grade for terminal, wherein, target MCS grade characterizes the channel condition of eating dishes without rice or wine of the terminal of last record.
Like this, the physical transmission rate corresponding according to basic MCS grade, ensure that terminal is when channel condition of eating dishes without rice or wine is the poorest, also can send PUSCH signal to described setting unit, can avoid eating dishes without rice or wine bad channel conditions and cause normally sending the problem of PUSCH signal because of terminal.
Preferably, when judging whether to receive the PUSCH signal that terminal truly sends, judging unit specifically for:
Any one in signal to noise ratio, absolute power and the decode results three kinds of state informations comprised in the PUSCH signal received and predetermined threshold value are compared, or, the combination of any several state information and each self-corresponding predetermined threshold value are compared, record comparative result, wherein
If all parameters all reach corresponding predetermined threshold value, then judging unit judges that the PUSCH signal that this receives is that terminal truly sends, and the DRX state of local record terminal is converted to activated state by sleep state;
If any parameter does not reach corresponding predetermined threshold value, then judging unit judges that PUSCH signal nonterminal that this receives truly sends, and dispatch request is false-alarm, then the DRX state of local record terminal continues to maintain sleep state by judging unit.
Preferably, if described device judges that receiving PUSCH signal is that terminal truly sends, then described device is optimized basic MCS grade, and revises AMC information according to the MCS grade after optimizing, like this, the negative influence of basic MCS grade to dispatching office generation next time can be reduced;
If described device judges to receive PUSCH signal and nonterminal truly sends, then do not carry out the correction of AMC information.
Preferably, if the DRX state of local record terminal is converted to activated state from sleep state by described device, then according to dispatch request, PUCCH closed-loop power control is carried out to terminal, and according to PUSCH power information, PUSCH closed-loop power control is carried out to terminal;
If the DRX state of local record terminal continues to maintain sleep state by described device, then do not carry out closed-loop power control.
Like this, avoid base station after receiving the dispatch request of false-alarm, still carry out closed-loop power control for error message.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention DRX state terminal scheduling outline flowchart;
Fig. 2 is the concrete implementing procedure figure of embodiment of the present invention DRX state terminal scheduling;
Fig. 3 is embodiment of the present invention architecture of base station schematic diagram.
Embodiment
The embodiment of the present invention devises a kind of method and device of terminal scheduling of DRX state, whether the dispatch request received when judging DRX sleep state by uplink scheduling is false-alarm, thus change the DRX state of base station side record terminal, and correspondence AMC revise and closed-loop power control strategy on adjusted, solve base station owing to detecting that the dispatch request of false-alarm causes base station and the terminal problem that state is inconsistent under DRX scene, avoid because of base station and SOT state of termination inconsistent and cause and extend signaling transmission time and the undue drawback improving terminal transmit power, thus ensure that the optimum performance of air interface.
Below in conjunction with Figure of description, the preferred embodiment of the present invention is described in detail.
Consult shown in Fig. 1, in the embodiment of the present invention, when realizing terminal scheduling under DRX scene, base station performs following operation:
Step 100: base station receiving scheduling request, and the signal to noise ratio of the dispatch request of acquisition and the first threshold value preset and the second threshold value are compared, obtain comparative result, wherein, the first threshold value is higher than the second threshold value.
In the embodiment of the present invention, the dispatch request that base station receives may be the dispatch request that the terminal be under DRX scene truly sends, and also may be the false-alarm that base station self detects.
In the embodiment of the present invention, the first threshold value also can be called high threshold, and the second threshold value also can be called low threshold, and according to high threshold and low threshold, base station can determine whether the dispatch request received is false-alarm.The value of high threshold and low threshold is arranged all based on experience value, can carry out renewal optimization at any time.
Particularly, in actual implementation procedure, if base station obtain dispatch request signal to noise ratio higher than preset high threshold (as, high threshold is set to 10db), then base station judges that the dispatch request that this receives is authentic and valid, so, the DRX state of the terminal of local record can be converted to activated state by sleep state by base station, and, base station carries out PUCCH closed-loop power control according to dispatch request to terminal, base station carries out PUSCH closed-loop power control according to Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) power information to terminal;
If base station obtain dispatch request signal to noise ratio lower than preset low threshold (as, threshold ones is set to-10db), then base station judges that this dispatch request received is as false-alarm, so, the DRX state of the terminal of local record can continue to maintain sleep state by base station, and does not carry out closed-loop power control.
And the signal to noise ratio of dispatch request obtained for base station is between two thresholdings, namely lower than the high threshold preset and higher than the situation of the low threshold preset, base station will further process, and this point will make introduction in subsequent embodiment.
Step 110: base station is according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, basic MCS grade is set according to the last terminal of AMC information pointer to the above-mentioned DRX of being in state of preserving, and sends PUSCH signal according to basic MCS grade dispatch terminal.
Particularly, base station can according to last AMC information of preserving, optionally, channel quality instruction (the Channel Quality Indication that can feed back for the last time in conjunction with terminal, CQI) information, determine corresponding target MCS grade, then target MCS grade is reduced N number of grade, obtain basic MCS grade, wherein, N is parameter preset, e.g., and N=2 or 3, like this, when dispatching terminal according to basic MCS grade, can ensure that terminal is when channel condition of eating dishes without rice or wine is the poorest, also can send PUSCH signal to base station.
Step 120: base station judges whether to receive the PUSCH signal that terminal truly sends, if so, then the DRX state of the terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the terminal of local record is continued to maintain sleep state.
Because network environment is complicated, there is interference noise everywhere, therefore, no matter whether terminal truly have sent PUSCH signal, and base station all can receive PUSCH signal, and therefore, base station needs to judge whether the PUSCH signal received is the signal that terminal truly sends.
Concrete grammar is: base station receives PUSCH signal, wherein, signal to noise ratio, absolute power and decode results three kinds of state informations are comprised in PUSCH signal, base station selection wherein a kind of state information and predetermined threshold value compares, or, combination and each self-corresponding predetermined threshold value of any several state information of base station selection compare, record comparative result.
If all parameters all reach corresponding predetermined threshold value, then base station judges that the PUSCH signal that this receives is that terminal truly sends, and represent that terminal is in activated state, then the DRX state of the terminal of local record is converted to activated state by sleep state by base station.
Further, base station is after completing false-alarm judgement, the basic MCS grade according to obtaining is needed to revise AMC information, to use when dispatching next time, but because basic MCS grade truly can not reflect the channel condition of eating dishes without rice or wine of present terminal, therefore, need to be optimized basic MCS grade, optionally, in the embodiment of the present invention, basic MCS grade is multiplied by a weighted factor (e.g., MCS*1.5), like this, the negative influence of basic MCS grade to dispatching office generation next time can be reduced.
Further, base station also needs to carry out closed-loop power control to terminal, and particularly, base station carries out PUCCH closed-loop power control according to dispatch request to terminal, and base station carries out PUSCH closed-loop power control according to PUSCH power information to terminal.
If any parameter does not reach corresponding predetermined threshold value, then base station judges this PUSCH signal received and nonterminal truly sends, show that this dispatch request is false-alarm, wherein, why base station judges like this, be because, base station reduces N number of MCS grade for terminal, be provided with basic MCS grade, ensure also to receive when channel condition of eating dishes without rice or wine is the poorest the PUSCH signal that terminal truly sends, if the PUSCH signal this time received reaches predetermined threshold value not yet, then show that also nonterminal truly sends, namely this dispatch request is false-alarm, then the DRX state of local record terminal continues to maintain sleep state by base station, and do not carry out AMC Information revision and closed-loop power control.
Be described in further detail the embodiment of the present invention below in conjunction with concrete application scenarios, idiographic flow is consulted shown in Fig. 2:
Step 200: under DRX scene, base station arranges two thresholdings, high threshold and low thresholds for the signal to noise ratio in the dispatch request of expection reception.
Wherein, the value of high threshold and low threshold rule of thumb sets, and can carry out renewal optimization at any time, after the base station being in sleep state receives dispatch request, can judge that whether the dispatch request received is authentic and valid according to two thresholdings preset.
Step 210: the signal to noise ratio of the dispatch request received and the high threshold preset and low threshold compare by base station, obtains comparative result.
Wherein, if the signal to noise ratio in the dispatch request of base station judgement reception is higher than the high threshold preset, then carry out step 211;
If the signal to noise ratio in the dispatch request that base station judgement receives lower than the low threshold preset, then carry out step 212;
If the signal to noise ratio in the dispatch request that base station judgement receives is between two thresholdings preset, and lower than high threshold, higher than low threshold, then carry out step 220.
Step 211: base station judges that this dispatch request is authentic and valid, is converted to activated state by the DRX state of local record terminal by sleep state, and participates in closed-loop power control.
Particularly, base station carries out PUCCH closed-loop power control according to dispatch request to terminal, and base station carries out PUSCH closed-loop power control according to PUSCH power information to terminal.
Step 212: base station judges that this dispatch request is invalid is false-alarm, the DRX state of local record terminal is continued to maintain sleep state, does not participate in closed-loop power control.
Like this, avoid base station after receiving the dispatch request of false-alarm, still carry out closed-loop power control for error message.
Step 220: base station higher than the situation of low threshold, according to last AMC information of preserving, pre-sets basic MCS grade for terminal lower than high threshold for the signal to noise ratio of dispatch request, and tentative scheduling PUSCH.
Particularly, base station, according to the AMC information of last terminal of preserving, or in conjunction with the CQI information of last terminal feedback, is determined to characterize last terminal and to be eated dishes without rice or wine the target MCS grade of channel condition, on the basis of target MCS grade, reduce N number of grade again, obtain basic MCS grade.Wherein, N is parameter preset, such as, and N=2 or 3.
Like this, the physical transmission rate corresponding according to basic MCS grade, ensure that terminal is when channel condition of eating dishes without rice or wine is the poorest, also can send PUSCH signal to base station, can avoid eating dishes without rice or wine bad channel conditions and cause normally sending the problem of PUSCH signal because of terminal.
Step 230: base station judges whether to receive the PUSCH signal that terminal truly sends, and if so, then carry out step 240, otherwise, carry out step 212.
Particularly, the physical transmission rate corresponding according to basic MCS grade, after the tentative scheduling in base station PUSCH, base station can according to this PUSCH signal received of the Quality estimation of the PUSCH signal received whether terminal truly send.
Concrete grammar is: any one in signal to noise ratio, absolute power and the decode results in the PUSCH signal received and the threshold value preset separately compare by base station, if reach threshold value, then carry out steps 240; Otherwise, carry out step 212.Or,
Combination several arbitrarily in signal to noise ratio, absolute power and decode results in the PUSCH signal received compares with the threshold value preset separately by base station respectively, if all reach threshold value, then carry out step 240; Otherwise, carry out step 212.
Step 240: base station judges that the PUSCH signal that this receives is that terminal truly sends, and the DRX state of local record terminal is converted to activated state by sleep state.
Particularly, if base station judges that the PUSCH signal that this receives is that terminal truly sends, show that now terminal is in activated state, then base station needs corresponding for the DRX state of local record terminal to be converted to activated state by sleep state, to carry out follow-up control to terminal.
Step 250: base station is revised AMC information according to the basic MCS grade obtained, and carries out PUCCH closed-loop power control according to dispatch request to terminal, and carries out PUSCH closed-loop power control according to PUSCH power information to terminal.
Wherein, when base station is revised AMC information according to the MCS grade obtained, based on cause, MCS grade is arranged when tentative scheduling PUSCH, object ensures that terminal also can send PUSCH signal to base station when channel condition of eating dishes without rice or wine is the poorest, but this basic MCS grade truly can not reflect the channel condition of eating dishes without rice or wine of present terminal, therefore, base station needs to be optimized basic MCS grade, the concrete grammar optimized is: basic MCS grade is multiplied by a weighted factor (e.g., MCS*1.5).
Like this, the negative influence of basic MCS grade to dispatching office generation next time can be reduced, and avoid base station after receiving the dispatch request of false-alarm, still carry out closed-loop power control for error message.
Based on above-described embodiment, consult shown in Fig. 3, in the embodiment of the present invention, under DRX scene, base station comprises comparing unit 300, setting unit 310 and judging unit 320.
Comparing unit 300, for receiving scheduling request, and the signal to noise ratio of dispatch request and the first threshold value preset and the second threshold value are compared, obtain comparative result, wherein, the first threshold value is higher than the second threshold value;
Setting unit 310, for according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, arranges basic MCS grade according to the last alternate medial center AMC information pointer preserved to terminal;
Judging unit 320, for judging whether to receive the PUSCH signal that terminal truly sends, if, then the DRX state of the terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the terminal of local record continued to maintain sleep state.
Like this, under DRX scene, base station can judge whether the dispatch request received is false-alarm, solves because of base station and the inconsistent and problem of up-downgoing data transmission fault that causes of SOT state of termination, avoids mistake scheduling and the own communication barrier that causes and the interference to other users.
Preferably, if this device is according to comparative result, determine that the signal to noise ratio of dispatch request is higher than the first threshold value preset, then this device judges that the dispatch request that this receives is authentic and valid, and the DRX state of local record terminal is converted to activated state by sleep state;
If this device is according to comparative result, determine that the signal to noise ratio of dispatch request is lower than the second threshold value preset, then this device judges that this dispatch request received is as false-alarm, and the DRX state of local record terminal is continued to maintain sleep state.
Preferably, according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, according to the last AMC information pointer preserved, basic MCS grade is arranged to terminal, setting unit 310 specifically for:
According to last AMC information of preserving, determine corresponding target MCS grade, and target MCS grade is reduced N number of grade, obtain basic MCS grade for terminal, wherein, target MCS grade characterizes the channel condition of eating dishes without rice or wine of the terminal of last record.
Preferably, when judging whether to receive the PUSCH signal that terminal truly sends, judging unit 320 specifically for:
Any one in signal to noise ratio, absolute power and the decode results three kinds of state informations comprised in the PUSCH signal received and predetermined threshold value are compared, or, the combination of any several state information and each self-corresponding predetermined threshold value are compared, record comparative result, wherein
If all parameters all reach corresponding predetermined threshold value, then judging unit 320 judges that the PUSCH signal that this receives is that terminal truly sends, and the DRX state of local record terminal is converted to activated state by sleep state;
If any parameter does not reach corresponding predetermined threshold value, then judging unit 320 judges that PUSCH signal nonterminal that this receives truly sends, and dispatch request is false-alarm, then the DRX state of local record terminal continues to maintain sleep state by judging unit 320.
Preferably, if this device judges that receiving PUSCH signal is that terminal truly sends, then device is optimized basic MCS grade, and revises AMC information according to the MCS grade after optimizing;
If this device judges to receive PUSCH signal and nonterminal truly sends, then do not carry out the correction of AMC information.
Preferably, if the DRX state of local record terminal is converted to activated state from sleep state by this device, then according to dispatch request, PUCCH closed-loop power control is carried out to terminal, and according to PUSCH power information, PUSCH closed-loop power control is carried out to terminal;
If the DRX state of local record terminal continues to maintain sleep state by this device, then do not carry out closed-loop power control.
In sum, in the embodiment of the present invention, base station receiving scheduling request, the signal to noise ratio of dispatch request and the first threshold value preset and the second threshold value are compared, according to the comparative result obtained, when determining the signal to noise ratio of dispatch request lower than the first threshold value and higher than the second threshold value, according to the last AMC information pointer preserved, basic MCS grade is arranged to terminal, and send PUSCH signal according to basic MCS grade dispatch terminal, and judge whether to receive the PUSCH signal that terminal truly sends, if, then the DRX state of the terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the terminal of local record is continued to maintain sleep state.Like this, under DRX scene, base station can judge whether the dispatch request received is false-alarm, solves because of base station and the inconsistent and problem of up-downgoing data transmission fault that causes of SOT state of termination, avoids mistake scheduling and the own communication barrier that causes and the interference to other users.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (12)

1. a method for the terminal scheduling of discontinuous reception DRX state, is characterized in that, comprising:
Base station receiving scheduling request, and the signal to noise ratio of described dispatch request and the first threshold value preset and the second threshold value are compared, obtain comparative result, wherein, the first threshold value is higher than the second threshold value;
Base station is according to the comparative result obtained, when determining the signal to noise ratio of described dispatch request lower than the first threshold value and higher than the second threshold value, according to the last alternate medial center AMC information pointer preserved, fundamental modulation and coding strategy MCS grade are arranged to described terminal, and send Physical Uplink Shared Channel PUSCH signal according to described basic MCS grade dispatch terminal;
Base station judges whether to receive the PUSCH signal that described terminal truly sends, if so, then the DRX state of the described terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the described terminal of local record is continued to maintain sleep state.
2. the method for claim 1, is characterized in that, comprises further:
If base station is according to described comparative result, determine that the signal to noise ratio of described dispatch request is higher than the first threshold value preset, then base station judges that the described dispatch request that this receives is authentic and valid, and the DRX state of terminal described in local record is converted to activated state by sleep state;
If base station is according to described comparative result, determine that the signal to noise ratio of described dispatch request is lower than the second threshold value preset, then base station judges that this described dispatch request received is as false-alarm, and the DRX state of terminal described in local record is continued to maintain sleep state.
3. the method for claim 1, it is characterized in that, base station according to obtain comparative result, when determining the signal to noise ratio of described dispatch request lower than the first threshold value and higher than the second threshold value, according to the last AMC information pointer preserved, basic MCS grade is arranged to described terminal, comprising:
Base station is according to last AMC information of preserving, determine corresponding target MCS grade for described terminal, and target MCS grade is reduced N number of grade, obtain basic MCS grade, wherein, described target MCS grade characterizes the channel condition of eating dishes without rice or wine of the described terminal of last record.
4. method as claimed in claim 3, is characterized in that, base station judges whether to receive the PUSCH signal that described terminal truly sends, and comprising:
Any one in signal to noise ratio, absolute power and the decode results three kinds of state informations comprised in the described PUSCH signal received and predetermined threshold value compare by base station, or, the combination of any several state information and each self-corresponding predetermined threshold value are compared, record comparative result, wherein
If all parameters all reach corresponding predetermined threshold value, then base station judges that the PUSCH signal that this receives is that described terminal truly sends, and the DRX state of terminal described in local record is converted to activated state by sleep state;
If any parameter does not reach corresponding predetermined threshold value, then base station judges that the non-described terminal of PUSCH signal that this receives truly sends, and described dispatch request is false-alarm, then the DRX state of terminal described in local record continues to maintain sleep state by base station.
5. method as claimed in claim 4, is characterized in that, comprise further:
If base station judges that receiving PUSCH signal is that described terminal truly sends, then base station is optimized described basic MCS grade, and revises AMC information according to the MCS grade after optimizing;
If base station judges that receiving PUSCH signal is not that described terminal truly sends, then do not carry out the correction of AMC information.
6. the method as described in any one of Claims 1 to 5, is characterized in that, comprises further:
If the DRX state of terminal described in local record is converted to activated state from sleep state by base station, then according to described dispatch request, PUCCH closed-loop power control is carried out to described terminal, and according to PUSCH power information, PUSCH closed-loop power control is carried out to described terminal;
If the DRX state of terminal described in local record continues to maintain sleep state by base station, then do not carry out closed-loop power control.
7. a device for the terminal scheduling of DRX state, is characterized in that, comprising:
Comparing unit, for receiving scheduling request, and the signal to noise ratio of described dispatch request and the first threshold value preset and the second threshold value are compared, obtain comparative result, wherein, the first threshold value is higher than the second threshold value;
Setting unit, for the comparative result according to acquisition, when determining the signal to noise ratio of described dispatch request lower than the first threshold value and higher than the second threshold value, according to the last alternate medial center AMC information pointer preserved, basic MCS grade is arranged to described terminal, and send PUSCH signal according to described basic MCS grade dispatch terminal;
Judging unit, for judging whether to receive the PUSCH signal that described terminal truly sends, if, then the DRX state of the described terminal of local record is converted to activated state by sleep state, otherwise, determine that dispatch request is false-alarm, and the DRX state of the described terminal of local record is continued to maintain sleep state.
8. device as claimed in claim 7, is characterized in that, comprise further:
If described device is according to described comparative result, determine that the signal to noise ratio of described dispatch request is higher than the first threshold value preset, then described device judges that the described dispatch request that this receives is authentic and valid, and the DRX state of terminal described in local record is converted to activated state by sleep state;
If described device is according to described comparative result, determine that the signal to noise ratio of described dispatch request is lower than the second threshold value preset, then described device judges that this described dispatch request received is as false-alarm, and the DRX state of terminal described in local record is continued to maintain sleep state.
9. device as claimed in claim 7, it is characterized in that, according to the comparative result obtained, when determining the signal to noise ratio of described dispatch request lower than the first threshold value and higher than the second threshold value, according to the last AMC information pointer preserved, basic MCS grade is arranged to described terminal, described setting unit specifically for:
According to last AMC information of preserving, determine corresponding target MCS grade for described terminal, and target MCS grade is reduced N number of grade, obtain basic MCS grade, wherein, described target MCS grade characterizes the channel condition of eating dishes without rice or wine of the described terminal of last record.
10. device as claimed in claim 9, is characterized in that, when judging whether to receive the PUSCH signal that described terminal truly sends, described judging unit specifically for:
Any one in signal to noise ratio, absolute power and the decode results three kinds of state informations comprised in the described PUSCH signal received and predetermined threshold value are compared, or, the combination of any several state information and each self-corresponding predetermined threshold value are compared, record comparative result, wherein
If all parameters all reach corresponding predetermined threshold value, then described judging unit judges that the PUSCH signal that this receives is that described terminal truly sends, and the DRX state of terminal described in local record is converted to activated state by sleep state;
If any parameter does not reach corresponding predetermined threshold value, then described judging unit judges that the non-described terminal of PUSCH signal that this receives truly sends, and described dispatch request is false-alarm, then the DRX state of terminal described in local record continues to maintain sleep state by described judging unit.
11. devices as claimed in claim 10, is characterized in that, comprise further:
If described device judges that receiving PUSCH signal is that described terminal truly sends, then described device is optimized described basic MCS grade, and revises AMC information according to the MCS grade after optimizing;
If described device judges that receiving PUSCH signal is not that described terminal truly sends, then do not carry out the correction of AMC information.
12. devices as described in any one of claim 7 ~ 11, is characterized in that, comprise further:
If the DRX state of terminal described in local record is converted to activated state from sleep state by described device, then according to described dispatch request, PUCCH closed-loop power control is carried out to described terminal, and according to PUSCH power information, PUSCH closed-loop power control is carried out to described terminal;
If the DRX state of terminal described in local record continues to maintain sleep state by described device, then do not carry out closed-loop power control.
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