CN101583178A - Method and device for dynamically controlling discontinuous reception of UE - Google Patents

Method and device for dynamically controlling discontinuous reception of UE Download PDF

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Publication number
CN101583178A
CN101583178A CNA2009100879094A CN200910087909A CN101583178A CN 101583178 A CN101583178 A CN 101583178A CN A2009100879094 A CNA2009100879094 A CN A2009100879094A CN 200910087909 A CN200910087909 A CN 200910087909A CN 101583178 A CN101583178 A CN 101583178A
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China
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subscriber equipment
drx
carry out
drx process
deexcitation
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CN101583178B (en
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田辉
胡铮
张平
徐海博
黄波
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a method and a device for dynamically controlling discontinuous reception of UE, the method comprising: when the UE initially establishes a link, the network side informs the UE to execute parameters to be used in a discontinuous reception process through a downlink signaling; during a service linking of the UE, after the end of each scheduling moment, the network side determines how to dynamically adjust the discontinuous reception process of the UE according to a discontinuous reception process executed by the UE at a preceding moment and the number of data packets to be transmitted in the service queue created for the UE; the network side sets a DRX mark for instructing the UE to change its discontinuous reception process according to the method and the result of determining how to adjust the discontinuous reception process of the UE, and transmits the set DRX mark to the UE in an open state of the receiver of the UE; the UE executes a different discontinuous reception process according to the received DRX mark and self-adaptively adjusts the parameters in the discontinuous reception process.

Description

Dynamically control the method and apparatus of the discontinuous reception of subscriber equipment
Technical field
(Discontinuous Receive, DRX) technology are meant the method and apparatus of the discontinuous reception of a kind of dynamic control subscriber equipment especially to the present invention relates to discontinuous reception.
Background technology
Along with developing rapidly of mobile communication technology, the disposal ability of portable terminal strengthens rapidly, and the function that provides increases rapidly.Future mobile communication system is when providing the higher availability of frequency spectrum, higher data rate, more colourful multimedia service, and the power problems of its terminal is also more severe.Especially, the access network of future mobile communication system all will carry out transfer of data based on the IP technology, and the burst characteristic of IP packet and the transmission channel sharing characteristic between the user makes that the data that arrive subscriber equipment are discontinuous, therefore, the energy consumption of how to save subscriber equipment seems more important.A lot of communication standardizations are organized in the consideration that has all added when formulating relevant criterion power saving.
At present, typical power-saving mechanism comprises 3 kinds of power-saving types (the Power Saving Class among the up-to-date WMAN standard 802.16e of IEEE in the mobile communication system, PSC) and " discontinuous reception " (Discontinuous Receive, DRX) mechanism in the cellular network.
Stipulate in the IEEE 802.16e standard that (Mobile Station MS) has activation and two kinds of mode of operations of dormancy to each portable terminal.Under park mode, MS carries out the dormancy period that consults with base station BS, in these cycles, there is not data interaction between MS and the serving BS broadcasts, MS can close relevant physical equipment, reduces the MS power consumption and saves base station (BaseStation, BS) purpose of air interface resource thereby reach.When MS was in resting state, BS can cushion the service data unit that sends to MS.When each enable mode finishes, carry out sleep messages between MS and the BS and consult with the initialization park mode.After the two confirmed sleep messages, normal transfer of data stopped at the time point of consulting, and enable mode finishes, and MS enters park mode, with certain interval dormancy, woke up then and confirmed whether to need to receive data.This interim wake-up states is called listening intervals.In listening intervals, MS monitors the message of indicating about business in the BS broadcast message.If have data need mail to MS among this message indication BS, MS then enters enable mode; Otherwise MS keeps park mode, begins next sleep interval.In park mode, each professional connection can be according to the related suitable power-saving type of own characteristic.The power-saving type is defined as one group of connection with same requirements.802.16e in have 3 kinds of power-saving types, each type has different parameter sets, suitable business and implementation.First type (type i) is applicable to and does one's best and non real-time variable Rate business.Second type (Type II) is applicable to unsolicited grant service and real-time variable Rate business.The third type (type-iii) is applicable to that multicast connects and the operation relevant with management.
At global system for mobile communications (Global System for Mobile communications, GSM) in the system, travelling carriage is just waken up once every several " multiframes " (being about as much as 1/8th seconds time period), is in sleep state At All Other Times always.System can indicate the travelling carriage per second to wake up and check whether incoming call is arranged for 4 times, or approximately per second wakes up to check whether incoming call is arranged for 1 time.In the DRX operation, processor will cut out receiver and make the sleep pattern that oneself enters low-power consumption.Restarting processor by timer internal through after the suitable length of one's sleep.
The 3G Universal Mobile Telecommunications System (Universal Mobile TelecommunicationSystem, UMTS) under the DRX mechanism in, the subscriber equipment receiver has 3 kinds of active states:
1. active period: in active period, subscriber equipment is opened receiver and is received the packet that network side transmits.
2. deexcitation phase: when not having to mail to the data of subscriber equipment in the network side buffer, subscriber equipment is opened a deexcitation timer, enters the deexcitation phase.If there are data to arrive the data buffer of network side correspondence before timer expired, timer stops, and finishes the deexcitation phase, begins next active period; If there is not packet to arrive the data buffer of network side correspondence before the timer expired all the time, then finish the deexcitation phase, subscriber equipment cuts out receiver, begins to enter rest period.
3. rest period: subscriber equipment enters the DRX pattern in rest period.Rest period comprises at least one DRX circulation.In the ending of each DRX circulation, subscriber equipment can be opened the receiver monitoring seek channel.Beep-page message is used in reference to and is shown in the data buffer whether previous DRX circulation has packet arrival network side correspondence.If have, then stop rest period, and subscriber equipment begins to receive packet from network side; If there is not packet to arrive the data buffer of network side correspondence, subscriber equipment then enters next DRX circulation, continues rest period.
Active period and deexcitation phase belong to the power enable mode, and under this pattern, the subscriber equipment receiver is in open mode, and network side can send packet to subscriber equipment.Rest period belongs to power saving mode, and under this pattern, the subscriber equipment receiver is in closed condition, and network side does not send packet to subscriber equipment.
(Long Term Evaluation, LTE) in the system, network side is each user device configuration DRX loop parameter at Long Term Evolution.A DRX circulation was made up of active period and rest period.Active period comprises again to be opened duration and deexcitation phase.In this case, the subscriber equipment receiver has following 4 kinds of active states:
1. open the duration: subscriber equipment is waken up to enter from rest period and is opened the duration.Opening in the duration, subscriber equipment receives Physical Downlink Control Channel (Physical DownlinkControl Channel, information PDCCH).Network side is arranged to notification of user equipment, relevant signaling information on the PDCCH channel, as the control messages about resource allocation such as affirmation, power control, resource allocation and reallocation with subscriber equipment.If subscriber equipment can successfully be decoded to the information of PDCCH signal, then open the deexcitation timer, enter the deexcitation phase; Otherwise subscriber equipment enters rest period after opening the duration end.
2. deexcitation phase: after subscriber equipment was successfully decoded the PDCCH channel, subscriber equipment was opened the deexcitation timer, enters the deexcitation phase.In the deexcitation phase, subscriber equipment continues to monitor PDCCH and associated control channel.If subscriber equipment before the deexcitation timer expired, successfully to PDCCH and associated control channel decoding, is then opened the deexcitation timer again, enter the deexcitation phase once more; Otherwise subscriber equipment enters rest period by the deexcitation phase behind the deexcitation timer expired.
3. active period: the time (comprise and opening duration and deexcitation phase) that the subscriber equipment receiver is in opening all belongs to active period.
4. rest period: the subscriber equipment receiver is in closed condition in rest period.
From above-mentioned introduction as can be seen, at 802.16e, in the power-saving mechanism of GSM and UMTS system, in case the number of the packet in the service queue that network side is a subscriber equipment to be set up greater than zero, user terminal is promptly carried out continuous receiving course.Have only when the number of data packets in the described service queue equals zero, subscriber equipment just might be carried out discontinuous receiving course.And in the power-saving mechanism of LTE, even packet is arranged in the described service queue, subscriber equipment also can be carried out discontinuous receiving course.Therefore, than 802.16e, GSM and UMTS system, the user terminal in the LTE system has better energy saving.
But, at present the DRX mechanism of LTE system does not consider that fully network side is the situation of change of the number of the packet in the service queue set up of subscriber equipment, therefore can't be according to the parameter in the described number of data packets dynamic self-adapting ground adjustment DRX mechanism, the length of rest period for example, the length of deexcitation timer etc.
Summary of the invention
In view of this, the objective of the invention is to propose the method and apparatus of the discontinuous reception of a kind of dynamic control subscriber equipment, realize the discontinuous receiving course of DRX of the described subscriber equipment of dynamic self-adapting ground adjustment.
Method based on the discontinuous reception of above-mentioned purpose a kind of dynamic control subscriber equipment provided by the invention comprises:
Step 1: when subscriber equipment initially connected, network side notified it to carry out the initial value of the parameter of using in the discontinuous receiving course by downlink signaling;
Step 2: during the business of subscriber equipment connects, after each scheduling finishes constantly, network side is the number of the medium packet to be sent of the discontinuous receiving course formulated of subscriber equipment and the service queue set up for subscriber equipment according to previous moment, dynamically definite discontinuous receiving course of how adjusting subscriber equipment;
Step 3: network side is according to the result of the discontinuous receiving course of the definite adjustment subscriber equipment of step 2, the DRX sign that changes discontinuous receiving course to the subscriber equipment indication is set, and set DRX sign is sent to subscriber equipment when the subscriber equipment receiver is in opening; With
Step 4: described subscriber equipment carry out corresponding discontinuous receiving course, and self adaptation is adjusted the parameter in the discontinuous receiving course according to the DRX sign that receives.
Optionally, this method further is provided with the deexcitation timer-I and the described scheduling moment of deexcitation timer-II control;
The discontinuous receiving course that described subscriber equipment is carried out comprises: DRX process-I, DRX process-II, DRX process-III and DRX process-IV;
During DRX process-I, subscriber equipment is controlled its receiver and alternately is in deexcitation phase-I and rest period;
During DRX process-II, subscriber equipment is controlled its receiver and is in deexcitation phase-II;
During DRX process-III, subscriber equipment is controlled its receiver and alternately is in monitoring phase and rest period;
During DRX process-IV, subscriber equipment alternately is in deexcitation phase-I and rest period;
Wherein,
Described deexcitation phase-I is that the subscriber equipment receiver is in the duration length of opening at predefined deexcitation timer-I in running time;
Deexcitation phase-II is that the subscriber equipment receiver is in the duration of opening at predefined deexcitation timer-II in running time;
The monitoring phase is used for receiving the DRX sign for the subscriber equipment receiver is in opening, when its maximum length in time initially connects at subscriber equipment, is notified by downlink signaling by network side;
Rest period is in closed condition for the subscriber equipment receiver, and the initial value of its duration and the maximum of duration are notified by downlink signaling by network side when subscriber equipment initially connects.
Optionally, this method is when DRX process-I, and be its initial value the maximum running time of described deexcitation timer-I, and the duration of rest period is its initial value;
During DRX process-III, the duration of described rest period is the self adaptation adjustment;
During DRX process-IV, be the self adaptation adjustment the maximum running time of deexcitation timer-I, and the duration of rest period is its initial value.
Optionally, this method comprises in parameter described in the step 1: the longest run time initial value of deexcitation timer-I; The longest run time maximum of deexcitation timer-I; The longest run time maximum of deexcitation timer-II; Duration monitoring phase; Duration rest period initial value; Duration rest period maximum.
Optionally, this method is carried out DRX process-I at the previous moment subscriber equipment, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is 0, and so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-I, begin to carry out DRX process-II;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is after subscriber equipment begins to carry out DRX process-I once more, the threshold value that all is provided with of a N continuous time quantum greater than network side, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-I, begin to carry out DRX process-IV;
After if current scheduling finishes constantly, network side is two conditions above the number of the medium packet to be sent of the service queue set up of subscriber equipment does not satisfy, and so the adjustment result of Que Dinging is: the discontinuous receiving course of described subscriber equipment remains unchanged.
Optionally, this method is carried out DRX process-II at the previous moment subscriber equipment, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is non-vanishing, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-II, begin to carry out DRX process-I;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is zero, and DRX process-II finishes automatically, and so the adjustment result of Que Dinging is: control described subscriber equipment and carry out DRX process-III;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is zero, and DRX process-II does not also finish automatically, and so the adjustment result of Que Dinging is: control described subscriber equipment and continue to carry out DRX process-II.
Optionally, this method is carried out DRX process-III at the previous moment subscriber equipment, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is non-vanishing, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-III, begin to carry out DRX process-I;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is zero, and so the adjustment result of Que Dinging is: control described subscriber equipment and continue execution DRX process-III.
Optionally, this method is carried out DRX process-IV at the previous moment subscriber equipment, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is after subscriber equipment begins or begin once more to carry out DRX process-IV, the threshold value that all is provided with of a N continuous time quantum less than network side, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-IV, begin to carry out DRX process-I;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is after subscriber equipment begins or begin once more to carry out DRX process-IV, the threshold value that all is provided with of a N continuous time quantum greater than network side, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out current DRX process-IV, begin to carry out new DRX process-IV;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment does not satisfy top two described conditions, and so the adjustment result of Que Dinging is: the discontinuous receiving course of described subscriber equipment remains unchanged.
Optionally, this method is carried out DRX process-I at the previous moment subscriber equipment, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-II, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 0;
If determine to begin to carry out DRX process-IV, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 1;
If determine to continue to carry out DRX process-I, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
Optionally, this method is carried out DRX process-II at the previous moment subscriber equipment, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-I, so only the LCID field of one of them Sub-header is set to " 11110 " and gets final product among the MAC PDU of Fa Songing, does not need to send corresponding MAC control element;
If determine to begin to carry out DRX process-III, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
Optionally, this method is carried out DRX process-III at the previous moment subscriber equipment, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-I, so only the LCID field of one of them Sub-header is set to " 11110 " and gets final product among the MAC PDU of Fa Songing, does not need to send corresponding MAC control element;
If determine to continue to carry out DRX process-III, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
Optionally, this method is carried out DRX process-IV at the previous moment subscriber equipment, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-I, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 0;
If determine to begin to carry out new DRX process-IV, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 1;
If determine to continue to carry out current DRX process-IV, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
Optionally, this method subscriber equipment in step 4 is carried out DRX process-I and is comprised: when subscriber equipment begins to carry out DRX process-I, at first control its receiver and be in deexcitation phase-I.
Optionally, this method further comprises when subscriber equipment is controlled its receiver and is in deexcitation phase-I:
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, but do not receive the DRX flag information, stop current deexcitation timer-I so, open a new deexcitation timer-I simultaneously, control its receiver and stay at active period-I;
If subscriber equipment is not still received control information and packet when current deexcitation timer-I timing finishes, do not receive the DRX flag information simultaneously yet, after current deexcitation timer-I timing finishes, control its receiver and enter rest period so; After rest period finishes, control its receiver and reenter deexcitation phase-I;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 1 ", stops current deexcitation timer-I so, and subscriber equipment k begins to carry out DRX process-IV;
If subscriber equipment did not receive control information and packet before current deexcitation timer-I timing finishes, but receive the DRX sign, and MAC control element wherein is " 1 ", stops current deexcitation timer-I so, and subscriber equipment begins to carry out DRX process-IV;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 0 ", stop current deexcitation timer-I so, open deexcitation timer-II simultaneously, subscriber equipment begins to carry out DRX process-II.
Optionally, this method subscriber equipment in step 4 is carried out DRX process-II and is comprised: when user terminal begins to carry out DRX process-II, at first control its receiver and be in active period-II.
Optionally, this method further comprises when controlling its receiver when subscriber equipment and be in deexcitation phase-II:
If receive the DRX sign before deexcitation timer-II timing finishes, when receiving that described DRX indicates, subscriber equipment stops deexcitation timer-II, begins to carry out DRX process-I so;
If do not receive the DRX sign when deexcitation timer-II timing finishes, after deexcitation timer-II timing finished, subscriber equipment began to carry out DRX process-III so.
Optionally, this method subscriber equipment in step 4 is carried out DRX process-III and is specifically comprised: when user terminal begins to carry out DRX process-III, at first control its receiver and be in hibernation, after rest period finished, subscriber equipment was controlled its receiver and is entered the monitoring phase.
Optionally, this method is controlled its receiver when subscriber equipment and is in monitoring during the phase, further comprises:
If subscriber equipment is received the DRX sign, after receiving described DRX sign, subscriber equipment can be controlled its receiver immediately and stop the monitoring phase, and begins to carry out DRX process-I so;
If subscriber equipment is not received Warning Mark, after the monitoring phase finished, subscriber equipment was controlled its receiver and is entered rest period so.After rest period finished, subscriber equipment was controlled its receiver and is reentered the monitoring phase.
Optionally, this method subscriber equipment in step 4 is carried out DRX process-IV and is specifically comprised: when subscriber equipment begins to carry out DRX process-IV, at first control its receiver and be in deexcitation phase-I.
Optionally, this method further comprises when subscriber equipment is controlled its receiver and is in deexcitation phase-I:
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, but do not receive the DRX flag information, stop current deexcitation timer-I so, open a new deexcitation timer-I simultaneously, control its receiver and stay at active period;
If subscriber equipment is not still received control information and packet when current deexcitation timer-I timing finishes, do not receive simultaneously the DRX flag information yet, after current deexcitation timer-I timing finished, subscriber equipment was controlled its receiver and is entered rest period so.After rest period finished, subscriber equipment was controlled its receiver and is reentered the deexcitation phase;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 1 ", stop current deexcitation timer-I so, subscriber equipment k begins to carry out new DRX process-IV;
If subscriber equipment did not receive control information and packet before current deexcitation timer-I timing finishes, but receive the DRX sign, and MAC control element wherein is " 1 ", stops current deexcitation timer-I so, and subscriber equipment is carried out new DRX process-IV;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 0 ", stops current deexcitation timer-I so, and subscriber equipment is carried out DRX process-I.
Optionally, when this method subscriber equipment in step 4 was carried out DRX process-III, self adaptation was adjusted the duration length of rest period.
Optionally, the adjustment of the duration length of this method described rest period comprises: control its receiver l (l 〉=1) is inferior in DRX process-III when entering rest period when subscriber equipment, the duration length of this rest period is calculated according to following mode:
T s ( l ) = min { f ( T s ( 0 ) ) , T s MAX }
T wherein s(0) expression duration rest period initial value; T s MAXThe maximum of expression duration rest period; F (T s(0)) is T sThe function of arbitrary form (0).
Optionally, when this method subscriber equipment in step 4 was carried out DRX process-IV, self adaptation was regulated the maximum opening time of deexcitation timer-I.
Optionally, this method in the maximum open-interval method of adjustment of described deexcitation timer-I is: when subscriber equipment begins the inferior DRX process of m (m 〉=1)-IV, suppose that the maximum duration length of deexcitation timer-I of just having finished is T i I(m-1), among the m time DRX process-IV, the longest run time of deexcitation timer-I calculates according to following mode so:
T i I ( m ) = min { g ( T i I ( 0 ) ) , T i I - MAX } , m ≥ 1
T wherein i I(0) initial value of expression deexcitation timer-I longest run time; T i I-MAXThe maximum of expression deexcitation timer-I longest run time; G (T i I(0)) is T i IThe function of arbitrary form (0).
In another aspect of this invention, also provide a kind of device of the discontinuous reception of dynamic self-adapting ground control subscriber equipment based on said method, this device is arranged in the base station, comprising:
The service queue module is used for the packet that buffer memory sends to subscriber equipment;
The DRX sign is provided with module: be used for the number according to user apparatus service formation packet, dynamically adjust subscriber equipment and carry out discontinuous receiving course, and the DRX sign that the indication subscriber equipment carries out discontinuous receiving course change further is set;
Transmitter module is used to launch control information, packet and the DRX sign of generation.
In another aspect of this invention, also provide a kind of device of the discontinuous reception of dynamic self-adapting ground control subscriber equipment based on said method, this device is arranged in the subscriber equipment, comprising:
Receiver module is used to receive control information, packet and described DRX sign from base station side;
Control information, packet and DRX flag decoding module are used for the control information, business datum and the described DRX sign that receive are decoded; With
Discontinuous reception control module be used for indicating to determine the discontinuous receiving course that subscriber equipment is carried out according to described DRX, and further receiver control enters different active states according to performed discontinuous receiving course.
From above as can be seen, the method and apparatus of the discontinuous reception of dynamic control subscriber equipment provided by the invention, by considering that network side is the number of the packet in the service queue set up of subscriber equipment, the discontinuous receiving course of DRX of described subscriber equipment is adjusted on dynamic self-adapting ground, and will adjust order and indicate by DRX and be notified to subscriber equipment; Subscriber equipment is in carrying out discontinuous receiving course, parameter in can the discontinuous receiving course of adaptively modifying, realize subscriber equipment well performance compromise between energy-efficient performance and message transmission rate performance with this, thereby make that subscriber equipment can obtain energy-conservation gain efficiently when the number of data packets that mails to subscriber equipment is zero; When the number of the packet of mailing to subscriber equipment during for a long time all in accumulation, subscriber equipment can access the higher data transmission rate.
Description of drawings
Fig. 1 is the schematic diagram of the DRX control device at place, embodiment of the invention network side base station;
Fig. 2 dynamically adjusts the schematic flow sheet that subscriber equipment is carried out discontinuous receiving course for embodiment of the invention DRX sign is provided with module;
Fig. 3 is used for carrying the form schematic diagram of MACPDU of the LTE system of DRX sign for the embodiment of the invention;
Fig. 4 is the schematic diagram of the DRX control device of embodiment of the invention user equipment side;
Fig. 5 carries out the schematic flow sheet of DRX process-I for embodiment of the invention subscriber equipment;
Fig. 6 carries out the schematic flow sheet of DRX process-II for embodiment of the invention subscriber equipment;
Fig. 7 carries out the schematic diagram of DRX process-III for embodiment of the invention subscriber equipment;
Fig. 8 carries out the schematic flow sheet of DRX process-IV for embodiment of the invention subscriber equipment.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Method according to the discontinuous reception of dynamic control subscriber equipment provided by the invention mainly may further comprise the steps:
Step 1: when subscriber equipment initially connected, network side notified it to carry out the initial value of the parameter of using in the discontinuous receiving course by downlink signaling;
Step 2: during the business of subscriber equipment connects, after each scheduling constantly finishes, the definite discontinuous receiving course how dynamically to adjust subscriber equipment of number of the medium packet to be sent of the service queue that network side is set up according to the performed discontinuous receiving course of previous moment (being to determine last time) subscriber equipment with for subscriber equipment;
Step 3: network side is provided with the DRX sign that changes discontinuous receiving course to the subscriber equipment indication according to described definite result who how to adjust the discontinuous receiving course of subscriber equipment, and set DRX sign is sent to subscriber equipment when the subscriber equipment receiver is in opening;
Step 4: described subscriber equipment carry out different discontinuous receiving courses, and self adaptation is adjusted the parameter in the discontinuous receiving course according to the DRX sign that receives.
According to another aspect of the present invention, provide a kind of device of discontinuous receiving course of dynamic self-adapting control subscriber equipment, comprising:
Be arranged in the base station,
The service queue module is used for the packet that buffer memory sends to subscriber equipment;
The DRX sign is provided with module: be used for the number according to user apparatus service formation packet, dynamically adjust subscriber equipment and carry out discontinuous receiving course, and the DRX sign that the indication subscriber equipment carries out discontinuous receiving course change further is set;
Transmitter module, be used to launch the control information, packet of generation and DRX sign and
Be arranged in the subscriber equipment,
Receiver module is used to receive control information, packet and described DRX sign from base station side;
Control information, packet and DRX flag decoding module are used for the control information, business datum and the described DRX sign that receive are decoded; With
Discontinuous reception control module be used for indicating to determine the discontinuous receiving course that subscriber equipment is carried out according to described DRX, and further receiver control enters different active states according to performed discontinuous receiving course.
Before embodiments of the invention are elaborated, at first explain the definition of several relational languages of using among the present invention:
Deexcitation timer-I: be used for controlling the duration length that the subscriber equipment receiver is in deexcitation phase-I, the initial value of its longest run time and the maximum of longest run time are notified by downlink signaling by network side when subscriber equipment initially connects;
Deexcitation timer-II: be used for controlling the duration length that the subscriber equipment receiver is in deexcitation phase-II, its longest run time is notified by downlink signaling by network side when initially connecting at subscriber equipment;
Deexcitation phase-I: the subscriber equipment receiver is in the duration length of opening at deexcitation timer-I in running time, and it depends on the actual run time of each deexcitation timer-I and the number of the deexcitation timer-I of operation continuously;
Deexcitation phase-II: the subscriber equipment receiver is in the duration of opening at deexcitation timer-II in running time.It depends on the actual run time of deexcitation timer-II; Wherein, deexcitation timer-I reflection is the time interval that user grouping is scheduled; What deexcitation timer-H reflected is the time interval that grouping arrives, and the duration of the two can be provided with arbitrarily, both can be the same or different;
The monitoring phase: the subscriber equipment receiver is in opening and is used for receiving the DRX sign, when its maximum length in time initially connects at subscriber equipment, is notified by downlink signaling by network side;
Rest period: the subscriber equipment receiver is in closed condition, and the initial value of its duration and the maximum of duration are notified by downlink signaling by network side when subscriber equipment initially connects;
DRX process-I: this procedure definition is that subscriber equipment is controlled its receiver and alternately is in deexcitation phase-I and rest period.Be its initial value the maximum running time of deexcitation timer-I; The duration of rest period is its initial value;
DRX process-II: this procedure definition is that subscriber equipment is controlled its receiver and is in deexcitation phase-II.
DRX process-III: this procedure definition is that subscriber equipment is controlled its receiver and alternately is in monitoring phase and rest period.The duration of rest period can the self adaptation adjustment.
DRX process-IV: this procedure definition is that subscriber equipment alternately is in deexcitation phase-I and rest period.The maximum running time of deexcitation timer-I can the self adaptation adjustment; The duration of rest period is its initial value.
With reference to the accompanying drawings embodiments of the invention are elaborated.
At first, when subscriber equipment initially connected, network side notified it to carry out the parameter of using in the discontinuous receiving course by downlink signaling.Specifically comprise:
The initial value of the longest run time of deexcitation timer-I: T i I(0);
The maximum of the longest run time of deexcitation timer-I: T i I-MAX
The longest run time of deexcitation timer-II: T i II
Monitoring phase maximum length in time: T o
The initial value of duration rest period: T s(0);
The maximum of duration rest period: T s MAX
Fig. 1 shows and has provided according to the present invention (the structure of an embodiment of the DRX control device of for example, eNB) locating in the network side base station.As shown in Figure 1, the DRX control device at the place, base station comprises that service queue module, DRX sign are provided with module and transmitter module.
For the discontinuous receiving course of dynamic self-adapting ground adjustment subscriber equipment, in the DRX control device at place, base station, dispose the DRX sign module is set.When the downlink grouped that will send to subscriber equipment arrived network side, packet at first entered in the business module formation of the DRX control device that is arranged in the base station and ranks.After finishing each, the service queue module reports to the DRX sign with the number of the medium packet to be sent of formation module is set dispatching cycle.DRX sign is provided with module and judges whether at first that according to the situation of change of number of data packets to be sent such as described needs adjust the non-continuous process that subscriber equipment is carried out, if court verdict is adjusted for needs, so further how judgement adjusts the discontinuous receiving course that subscriber equipment is carried out, and according to described judged result the DRX sign that the indication subscriber equipment carries out discontinuous receiving course change is set further.By transmitter module DRX sign and other control informations are carried out descending transmission by correlated channels together at last.
Fig. 2 show the sign of DRX among the present invention be provided with module according to the report of service queue module etc. the situation of change of number of data packets to be sent, dynamically adjust the embodiment that respective user equipment is carried out discontinuous receiving course.
Suppose that at the moment t base station is Q for the data volume in the service queue of subscriber equipment k foundation k(t).
At first, judge the state that subscriber equipment k is current, comprise:
Step 200, t begins constantly, and the DRX of base station sign is provided with module to be judged that subscriber equipment k is current and whether carries out DRX process-I, if then enter step 201, otherwise enters step 210.
In step 210, judge that subscriber equipment k is current whether to carry out DRX process-II, if then enter step 211, otherwise enter step 220.
In step 220, judge that subscriber equipment k is current whether to carry out DRX process-III, if then enter step 221, otherwise enter step 230.
When t constantly before subscriber equipment k when carrying out DRX process-I, the DRX sign is provided with module and adjusts respective user equipment and carry out the process of discontinuous reception and comprise:
Step 201～202 judge whether Q k(t)=0, if Q k(t)=0, the base station can when sending control information with packet, send the DRX sign during subscriber equipment k receiver is in deexcitation phase-I so, and control subscriber equipment k stops to carry out DRX process-I, begins to carry out DRX process-II.
Step 203～204 judge whether ∀ n ∈ [ 0 , N - 1 ] , N ∈ Z, Q k(t-n)＞Q TH, if not, promptly ∃ n ∈ [ 0 , N - 1 ] , N ∈ Z, 0＜Q k(t-n)≤Q TH, then enter step 205; If, promptly in the service queue module of subscriber equipment k number of data packets a N continuous time quantum all be higher than predetermined threshold value Q TH, no matter whether the base station send control information and packet during the subscriber equipment receiver is in deexcitation phase-I so, all can send the DRX sign, and the control subscriber equipment stops to carry out DRX process-I, begins to carry out DRX process-IV.
Step 205, if ∃ n ∈ [ 0 , N - 1 ] , N ∈ Z, 0＜Q k(t-n)≤Q TH, the base station can not send DRX and indicates to subscriber equipment so, and subscriber equipment continues to carry out DRX process-I.
When t constantly before subscriber equipment k when carrying out DRX process-II, the DRX sign is provided with module and adjusts respective user equipment and carry out the process of discontinuous reception and be:
Step 211～212 judge whether Q k(t)=0 and deexcitation timer-II constantly also not overtime at t, if then the base station can not send DRX and indicates that to subscriber equipment subscriber equipment continues to carry out DRX process-II; Otherwise, enter step 213.
Step 213～214 judge whether Q k(t)=0 and deexcitation timer-II finish in t timing constantly, if, and ∀ n ∈ [ 0 , N - 1 ] , N ∈ Z, Q k(t-n)=0, deexcitation timer-II finishes in t timing constantly, and the base station does not need to send the DRX sign so, and subscriber equipment can stop to carry out DRX process-II automatically, begins to carry out DRX process-III; Otherwise enter step 215.
If step 215 is Q k(t)＞0 and deexcitation timer-II constantly also not overtime at t, the base station can send the DRX sign during the subscriber equipment receiver is in deexcitation phase-II so, the control subscriber equipment stops to carry out DRX process-II, begins to carry out DRX process-I.
When t constantly before subscriber equipment k when carrying out DRX process-III, the DRX sign is provided with module and adjusts respective user equipment and carry out the process of discontinuous reception and be:
Step 221～222 judge whether Q k(t)＞0, if Q k(t)＞0, the base station can send the DRX sign in the monitoring phase that distance t nearest subscriber equipment receiver of the moment enters so, and the control subscriber equipment stops to carry out DRX process-III, begins to carry out DRX process-I; Otherwise, enter step 223.
If step 223 is Q k(t)=0, the base station can not send DRX and indicates to subscriber equipment so, and subscriber equipment continues to carry out DRX process-III.
When t constantly before subscriber equipment k when carrying out DRX process-IV, the DRX sign is provided with module and adjusts respective user equipment and carry out the process of discontinuous reception and be:
Step 231～232 judge whether ∀ n ∈ [ 0 , N - 1 - t ′ ] , N ∈ Z, Q k(t-n) 〉=Q TH(wherein t ' expression subscriber equipment begin to carry out current DRX process-IV the moment), if, be subscriber equipment k after beginning to carry out current DRX process-IV, in its service queue module number of data packets once more a N continuous time quantum all be higher than predetermined threshold value Q TH, no matter whether the base station send control information and packet during the subscriber equipment receiver is in deexcitation phase-I so, all can send the DRX sign, and the control subscriber equipment begins to carry out a new DRX process-IV; Otherwise enter step 233.
Step 233～234, if ∀ n ∈ [ 0 , N - 1 ] , N ∈ Z, 0＜Q k(t-n)≤Q TH, promptly user terminal k after beginning to carry out current DRX process-IV, in its service queue module number of data packets a N continuous time quantum all be lower than predetermined threshold value Q TH, the base station can when sending control information with packet, send the DRX sign during the user terminal receiver is in deexcitation phase-I so, and the control subscriber equipment stops to carry out DRX process-IV, begins to carry out DRX process-I; Otherwise, enter step 235.
If do not satisfy above-mentioned two kinds of conditions, promptly subscriber equipment k is when carrying out current DRX process-IV, and number of data packets is lower than predetermined threshold Q sometimes in its service queue module in a N continuous time quantum TH, be higher than predetermined threshold Q sometimes TH, the base station can not send DRX and indicates to user terminal so, and user terminal continues to carry out current DRX process-IV.
When DRX indicates that module is set judges the discontinuous receiving course that needs the adjustment subscriber equipment, the DRX sign is set.Fig. 3 has provided the form of medium access control (MAC) Protocol Data Unit (PDU) that defines in the LTE system.Wherein comprise a plurality of sub-header among the MAC header.The MAC control element that represents this sub-header correspondence when the LCID field among the sub-header is set to " 11110 " is DRX Command.In conjunction with LCID field among the sub-header and the MACcontrol element that is used to carry DRX Command, the concrete grammar that the DRX sign among the present invention is provided with is:
When being provided with module, the DRX sign judges that subscriber equipment need stop to carry out DRX process-I, when beginning to carry out DRX process-II, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU that sends, and the MAC control element of correspondence is set to 0;
When being provided with module, the DRX sign judges that subscriber equipment need stop to carry out DRX process-I, when beginning to carry out DRX process-IV, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU that sends, and the MAC control element of correspondence is set to 1;
When DRX sign is provided with module and judges that subscriber equipment need continue to carry out DRX process-I, do not need to send MAC PDU or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ";
When being provided with module, the DRX sign judges that subscriber equipment need stop to carry out DRX process-II, when beginning to carry out DRX process-I, only the LCID field of one of them Sub-header is set to " 11110 " and gets final product among the MAC PDU of Fa Songing, does not need to send corresponding MACcontrol element;
When being provided with module, the DRX sign judges that subscriber equipment need stop to carry out DRX process-III, when beginning to carry out DRX process-I, only the LCID field of one of them Sub-header is set to " 11110 " and gets final product among the MAC PDU of Fa Songing, does not need to send corresponding MACcontrol element;
When being provided with module, the DRX sign judges that subscriber equipment need stop to carry out DRX process-IV, when beginning to carry out DRX process-I, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU that sends, and the MAC control element of correspondence is set to 0;
When being provided with module, the DRX sign judges that subscriber equipment need stop to carry out current DRX process-IV, when beginning to carry out new DRX process-IV, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU that sends, and the MAC controlelement of correspondence is set to 1;
When DRX sign is provided with module and judges that subscriber equipment need continue to carry out current DRX process-IV, do not need to send MAC PDU or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
Fig. 4 shows according to the present invention at an embodiment of the DRX of user equipment side control device.As shown in Figure 4, the DRX control device of user equipment side comprises receiver module, control information, data and DRX flag decoding module and discontinuous reception control module.
Receiver module in the subscriber equipment receives the control information such as schedule information, packet and the DRX sign from network side.Then, receiver module passes to control information, data and DRX flag decoding module with control information, packet and DRX sign.Control information, data and DRX flag decoding module are decoded to the control information that receives, packet and DRX sign, and decoding is obtained the DRX sign are notified to discontinuous reception control module.Discontinuous reception control module indicates to come the state of receiver control module according to this, thereby realizes the controlled function of the discontinuous receiving course of dynamic self-adapting ground adjustment.
Subscriber equipment is carried out different discontinuous receiving courses according to the DRX flag information that receives from the base station.Fig. 5 has provided the embodiment of subscriber equipment execution DRX process-I.Detailed process comprises:
When subscriber equipment begins to carry out DRX process-I, at first open a new deexcitation timer-I (step 501), control its receiver module and be in deexcitation phase-I (step 502).
During deexcitation phase-I:
Judge whether to receive Downlink Control Information and data message (step 503);
If subscriber equipment is before current deexcitation timer-I timing finishes, receive control information and packet, then continue to judge whether to receive DRX flag information (step 504), if do not receive the DRX flag information simultaneously yet, judge so whether timing finishes (step 505) to deexcitation timer-I, if finish, then return step 501, if do not finish to return step 502.Its receiver of control stays at deexcitation phase-I like this.
When if subscriber equipment finishes in current deexcitation timer-I timing, still do not receive control information and packet, then continue to judge whether to receive Warning Mark information (step 506), if do not receive the DRX flag information simultaneously yet, judge so whether current deexcitation timer-I timing finishes (step 507), if control its receiver and enter rest period (step 508); Constantly judge whether dormancy finishes (509), after rest period finishes, return step 501, control its receiver and reenter deexcitation phase-I.
If subscriber equipment is before current deexcitation timer-I timing finishes, receive control information and packet, receive the DRX sign simultaneously, judge then whether MAC controlelement wherein is " 1 " (step 510), if, stop current deexcitation timer-I so, subscriber equipment k begins to carry out DRX process-IV (step 511).
If subscriber equipment is before current deexcitation timer-I timing finishes, do not receive control information and packet, but receive the DRX sign, and MAC controlelement wherein is " 1 ", stop current deexcitation timer-I so, subscriber equipment k begins to carry out DRX process-IV (step 511).
If subscriber equipment is before current deexcitation timer-I timing finishes, receive control information and packet, receive the DRX sign simultaneously, but judge that in step 510 Warning Mark MAC control element is not " 1 ", but be " 0 ", stop current deexcitation timer-I so, open deexcitation timer-II simultaneously, subscriber equipment begins to carry out DRX process-II (step 512).
Subscriber equipment is during carrying out DRX process-I, and the running time of deexcitation timer-I and the duration of rest period do not change.
Fig. 6 has provided the embodiment of subscriber equipment execution DRX process-II.Detailed process comprises:
When subscriber equipment begins to carry out DRX process-II, at first, open deexcitation timer-II (step 601), control its receiver and be in active period-II (step 602).
During deexcitation phase-II:
Judge whether to receive DRX flag information (step 603), and whether the timing of deexcitation timer-II finishes (step 605);
If receive the DRX sign before deexcitation timer-II timing finishes, when receiving that described DRX indicates, subscriber equipment stops deexcitation timer-II, begins to carry out DRX process-I (step 604) so.
If do not receive the DRX sign when deexcitation timer-II timing finishes, after deexcitation timer-II timing finished, subscriber equipment began to carry out DRX process-III (step 606) so.
Subscriber equipment is only opened deexcitation timer-II one time during carrying out DRX process-II.
Fig. 7 has provided the embodiment of subscriber equipment execution DRX process-III.Detailed process comprises:
When subscriber equipment begins to carry out DRX process-III, at first calculate the duration (step 701) of next dormancy, control its receiver be in hibernation (step 702), judge whether rest period finishes (step 703), after rest period finished, subscriber equipment was controlled its receiver and is entered the monitoring phase (step 704).
Wherein, in DRX process-III, the duration length of rest period can the self adaptation adjustment, and concrete adjustment process is:
Control its receiver l (l 〉=1) is inferior in DRX process III when entering rest period when subscriber equipment, the duration length of this rest period is calculated according to following mode:
T s ( l ) = min { f ( T s ( 0 ) ) , T s MAX }
In particular, f (T s(0)) form can be expressed as: f (T s(0))=2 lT s(0).
During the monitoring phase:
Also judge whether to receive the DRX sign (step 705) of MAC control element for " 1 ";
If subscriber equipment is received the DRX sign, after receiving described DRX sign, subscriber equipment can be controlled its receiver immediately and stop the monitoring phase, and begins to carry out DRX process-I (step 706) so;
If subscriber equipment is not received DRX sign, judge so whether the monitoring phase finish (step 707), after the monitoring phase finished, subscriber equipment was controlled its receiver and is entered rest period.After rest period finished, subscriber equipment was controlled its receiver and is reentered the monitoring phase.
After number of data packets was zero in the service queue that place, network side base station sets up for subscriber equipment, the described subscriber equipment of base stations control began to carry out DRX process-III.During this period, prolong the duration that its receiver is in the rest period of closed condition by self adaptation, it is energy-conservation that described subscriber equipment is better carried out in this case.
Fig. 8 has provided the embodiment of subscriber equipment execution DRX process-IV.Detailed process comprises:
When subscriber equipment begins to carry out DRX process-IV, at first, recomputate the maximum opening time length (step 801) of deexcitation timer-I, open a new deexcitation timer-I (step 802) then, control its receiver and be in deexcitation phase-I (step 803).
Wherein, in DRX process-IV, the maximum opening time of deexcitation timer-I can the self adaptation adjustment, and concrete adjustment process is:
When subscriber equipment begins the inferior DRX process of m (m 〉=1)-IV, suppose that the maximum opening time length of deexcitation timer-I of just having finished is T i I(m-1)), among the m time DRX process-IV, the maximum opening time of deexcitation timer-I calculates according to following mode so:
T i I ( m ) = min { g ( T i I ( 0 ) ) , T i I - MAX } , m ≥ 1
In particular, g (T i I(0)) form can be expressed as g ( T i I ( 0 ) ) = ( m + 1 ) T i i ( 0 ) .
During the deexcitation phase:
Judge whether to receive Downlink Control Information and packet (step 804);
If receive control information and packet then continues to judge whether to receive DRX flag information (step 805), do not judge whether that further the timing of deexcitation timer-I finishes (step 806) if receive the DRX flag information; If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, but do not receive the DRX flag information, then return step 803, if the timing of deexcitation timer-I finishes, return step 802 so, stop current deexcitation timer-I, open a new deexcitation timer-I simultaneously, the duration of deexcitation timer-I that this is new is still consistent with former deexcitation timer-I, controls its receiver and stays at deexcitation phase-I.
If subscriber equipment is not received control information and packet, further judge whether to receive DRX flag information (step 807), if through judging when current deexcitation timer-I timing finishes (step 808), control information and packet had not both been received, also do not receive the DRX flag information, subscriber equipment is controlled its receiver and is entered rest period (step 809) so; Keep and judge whether rest period finish (810), after rest period finishes, return step 802, subscriber equipment is controlled its receiver and is reentered the deexcitation phase.
If subscriber equipment is before current deexcitation timer-I timing finishes, receive control information and packet (step 804), receive DRX sign (step 805) simultaneously, and through judging that wherein MAC control element is not " 0 " and be " 1 " (step 811), stop current deexcitation timer-I so, subscriber equipment is carried out new DRX process-IV (step 812), returns step 801.
If subscriber equipment is before current deexcitation timer-I timing finishes, do not receive control information and packet (step 804), but receive DRX sign (step 807), and MAC control element wherein is " 1 " (step 811), stop current deexcitation timer-I so, subscriber equipment is carried out new DRX process-IV (step 812), returns step 801.
If subscriber equipment is before current deexcitation timer-I timing finishes, receive control information and packet (step 804), receive DRX sign (step 805) simultaneously, and MAC control element wherein is " 0 " (step 811), stop current deexcitation timer-I so, subscriber equipment is carried out DRX process-I (step 813).
By the present invention program, a number of data packets N continuous time quantum all is higher than predetermined threshold value Q in the service queue that place, network side base station sets up for subscriber equipment THAfter, the described subscriber equipment of base stations control begins to carry out DRX process-IV.After beginning to carry out a new DRX process-IV at every turn, described subscriber equipment prolongs the maximum running time of deexcitation timer-I by self adaptation, thereby prolong the duration that its receiver is in the deexcitation phase-I of opening, can make described subscriber equipment have higher message transmission rate in this case.
Compare with the discontinuous reception mechanism of present 802.16e, GSM, UMTS and LTE system, the present invention is by considering that network side is the number of the packet in the service queue set up of subscriber equipment as can be seen, dynamically adjust the discontinuous receiving course of DRX of described subscriber equipment, thereby make subscriber equipment can adaptively between energy-efficient performance and message transmission rate performance, obtain good performance compromise.
Above-described specific embodiment is specific embodiments of the invention only, is not limited to the present invention, and is within the spirit and principles in the present invention all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (26)

1. a method of dynamically controlling the discontinuous reception of subscriber equipment is characterized in that, comprising:
Step 1: when subscriber equipment initially connected, network side notified it to carry out the initial value of the parameter of using in the discontinuous receiving course by downlink signaling;
Step 2: during the business of subscriber equipment connects, after each scheduling finishes constantly, network side is the number of the medium packet to be sent of the discontinuous receiving course formulated of subscriber equipment and the service queue set up for subscriber equipment according to previous moment, dynamically definite discontinuous receiving course of how adjusting subscriber equipment;
Step 3: network side is according to the result of the discontinuous receiving course of the definite adjustment subscriber equipment of step 2, the DRX sign that changes discontinuous receiving course to the subscriber equipment indication is set, and set DRX sign is sent to subscriber equipment when the subscriber equipment receiver is in opening; With
Step 4: described subscriber equipment carry out corresponding discontinuous receiving course, and self adaptation is adjusted the parameter in the discontinuous receiving course according to the DRX sign that receives.
2. method according to claim 1 is characterized in that, the described scheduling moment of deexcitation timer-I and deexcitation timer-II control is set;
The discontinuous receiving course that described subscriber equipment is carried out comprises: DRX process-I, DRX process-II, DRX process-III and DRX process-IV;
During DRX process-I, subscriber equipment is controlled its receiver and alternately is in deexcitation phase-I and rest period;
During DRX process-II, subscriber equipment is controlled its receiver and is in deexcitation phase-II;
During DRX process-III, subscriber equipment is controlled its receiver and alternately is in monitoring phase and rest period;
During DRX process-IV, subscriber equipment alternately is in deexcitation phase-I and rest period;
Wherein,
Described deexcitation phase-I is that the subscriber equipment receiver is in the duration length of opening at predefined deexcitation timer-I in running time;
Deexcitation phase-II is that the subscriber equipment receiver is in the duration of opening at predefined deexcitation timer-II in running time;
The monitoring phase is used for receiving the DRX sign for the subscriber equipment receiver is in opening, when its maximum length in time initially connects at subscriber equipment, is notified by downlink signaling by network side;
Rest period is in closed condition for the subscriber equipment receiver, and the initial value of its duration and the maximum of duration are notified by downlink signaling by network side when subscriber equipment initially connects.
3. method according to claim 2 is characterized in that,
During DRX process-I, be its initial value the maximum running time of described deexcitation timer-I, and the duration of rest period is its initial value;
During DRX process-III, the duration of described rest period is the self adaptation adjustment;
During DRX process-IV, be the self adaptation adjustment the maximum running time of deexcitation timer-I, and the duration of rest period is its initial value.
4. method according to claim 2 is characterized in that parameter comprises described in the step 1: the longest run time initial value of deexcitation timer-I; The longest run time maximum of deexcitation timer-I; The longest run time maximum of deexcitation timer-II; Duration monitoring phase; Duration rest period initial value; Duration rest period maximum.
5. method according to claim 2 is characterized in that, the previous moment subscriber equipment is carried out DRX process-I, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is 0, and so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-I, begin to carry out DRX process-II;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is after subscriber equipment begins to carry out DRX process-I once more, the threshold value that all is provided with of a N continuous time quantum greater than network side, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-I, begin to carry out DRX process-IV;
After if current scheduling finishes constantly, network side is two conditions above the number of the medium packet to be sent of the service queue set up of subscriber equipment does not satisfy, and so the adjustment result of Que Dinging is: the discontinuous receiving course of described subscriber equipment remains unchanged.
6. method according to claim 2 is characterized in that, the previous moment subscriber equipment is carried out DRX process-II, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is non-vanishing, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-II, begin to carry out DRX process-I;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is zero, and DRX process-II finishes automatically, and so the adjustment result of Que Dinging is: control described subscriber equipment and carry out DRX process-III;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is zero, and DRX process-II does not also finish automatically, and so the adjustment result of Que Dinging is: control described subscriber equipment and continue to carry out DRX process-II.
7. method according to claim 2 is characterized in that, the previous moment subscriber equipment is carried out DRX process-III, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is non-vanishing, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-III, begin to carry out DRX process-I;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is zero, and so the adjustment result of Que Dinging is: control described subscriber equipment and continue execution DRX process-III.
8. method according to claim 2 is characterized in that, the previous moment subscriber equipment is carried out DRX process-IV, and network side determines that discontinuous receiving course how dynamically to adjust subscriber equipment comprises in the step 2:
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is after subscriber equipment begins or begin once more to carry out DRX process-IV, the threshold value that all is provided with of a N continuous time quantum less than network side, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out DRX process-IV, begin to carry out DRX process-I;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment is after subscriber equipment begins or begin once more to carry out DRX process-IV, the threshold value that all is provided with of a N continuous time quantum greater than network side, so the adjustment result of Que Dinging is: control described subscriber equipment and stop to carry out current DRX process-IV, begin to carry out new DRX process-IV;
After if current scheduling finishes constantly, network side is that the number of the medium packet to be sent of the service queue set up of subscriber equipment does not satisfy top two described conditions, and so the adjustment result of Que Dinging is: the discontinuous receiving course of described subscriber equipment remains unchanged.
9. method according to claim 2 is characterized in that, the previous moment subscriber equipment is carried out DRX process-I, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-II, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 0;
If determine to begin to carry out DRX process-IV, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 1;
If determine to continue to carry out DRX process-I, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
10. method according to claim 2, it is characterized in that, the previous moment subscriber equipment is carried out DRX process-II, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-I, so only the LCID field of one of them Sub-header is set to " 11110 " and gets final product among the MAC PDU of Fa Songing, does not need to send corresponding MAC control element;
If determine to begin to carry out DRX process-III, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
11. method according to claim 2, it is characterized in that, the previous moment subscriber equipment is carried out DRX process-III, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-I, so only the LCID field of one of them Sub-header is set to " 11110 " and gets final product among the MAC PDU of Fa Songing, does not need to send corresponding MAC control element;
If determine to continue to carry out DRX process-III, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
12. method according to claim 2, it is characterized in that, the previous moment subscriber equipment is carried out DRX process-IV, and the step that the adjustment result who determines according to described step 2 in the step 3 is provided with to the DRX sign of the discontinuous receiving course of subscriber equipment indication change comprises:
If determine to begin to carry out DRX process-I, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 0;
If determine to begin to carry out new DRX process-IV, the LCID field of one of them Sub-header is set to " 11110 " among the MAC PDU of Fa Songing so, and the MACcontrol element of correspondence is set to 1;
If determine to continue to carry out current DRX process-IV, do not need to send MAC PDU so or when sending MAC PDU, do not need to send the Sub-header that field LCID is made as " 11110 ".
13. method according to claim 2 is characterized in that, subscriber equipment is carried out DRX process-I and is comprised in the step 4: when subscriber equipment begins to carry out DRX process-I, at first control its receiver and be in deexcitation phase-I.
14. method according to claim 13 is characterized in that, when subscriber equipment is controlled its receiver and is in deexcitation phase-I, further comprises:
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, but do not receive the DRX flag information, stop current deexcitation timer-I so, open a new deexcitation timer-I simultaneously, control its receiver and stay at active period-I;
If subscriber equipment is not still received control information and packet when current deexcitation timer-I timing finishes, do not receive the DRX flag information simultaneously yet, after current deexcitation timer-I timing finishes, control its receiver and enter rest period so; After rest period finishes, control its receiver and reenter deexcitation phase-I;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 1 ", stops current deexcitation timer-I so, and subscriber equipment k begins to carry out DRX process-IV;
If subscriber equipment did not receive control information and packet before current deexcitation timer-I timing finishes, but receive the DRX sign, and MAC control element wherein is " 1 ", stops current deexcitation timer-I so, and subscriber equipment begins to carry out DRX process-IV;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 0 ", stop current deexcitation timer-I so, open deexcitation timer-II simultaneously, subscriber equipment begins to carry out DRX process-II.
15. method according to claim 2 is characterized in that, subscriber equipment is carried out DRX process-II and is comprised in the step 4: when user terminal begins to carry out DRX process-II, at first control its receiver and be in active period-II.
16. method according to claim 15 is characterized in that, when subscriber equipment is controlled its receiver and is in deexcitation phase-II, further comprises:
If receive the DRX sign before deexcitation timer-II timing finishes, when receiving that described DRX indicates, subscriber equipment stops deexcitation timer-II, begins to carry out DRX process-I so;
If do not receive the DRX sign when deexcitation timer-II timing finishes, after deexcitation timer-II timing finished, subscriber equipment began to carry out DRX process-III so.
17. method according to claim 2, it is characterized in that, subscriber equipment is carried out DRX process-III and is specifically comprised in the step 4: when user terminal begins to carry out DRX process-III, at first controlling its receiver is in hibernation, after rest period finished, subscriber equipment was controlled its receiver and is entered the monitoring phase.
18. method according to claim 17 is characterized in that, controls its receiver when subscriber equipment and is in monitoring during the phase, further comprises:
If subscriber equipment is received the DRX sign, after receiving described DRX sign, subscriber equipment can be controlled its receiver immediately and stop the monitoring phase, and begins to carry out DRX process-I so;
If subscriber equipment is not received Warning Mark, after the monitoring phase finished, subscriber equipment was controlled its receiver and is entered rest period so.After rest period finished, subscriber equipment was controlled its receiver and is reentered the monitoring phase.
19. method according to claim 2 is characterized in that, subscriber equipment is carried out DRX process-IV and is specifically comprised in the step 4: when subscriber equipment begins to carry out DRX process-IV, at first control its receiver and be in deexcitation phase-I.
20. method according to claim 19 is characterized in that, when subscriber equipment is controlled its receiver and is in deexcitation phase-I, further comprises:
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, but do not receive the DRX flag information, stop current deexcitation timer-I so, open a new deexcitation timer-I simultaneously, control its receiver and stay at active period;
If subscriber equipment is not still received control information and packet when current deexcitation timer-I timing finishes, do not receive simultaneously the DRX flag information yet, after current deexcitation timer-I timing finished, subscriber equipment was controlled its receiver and is entered rest period so.After rest period finished, subscriber equipment was controlled its receiver and is reentered the deexcitation phase;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 1 ", stop current deexcitation timer-I so, subscriber equipment k begins to carry out new DRX process-IV;
If subscriber equipment did not receive control information and packet before current deexcitation timer-I timing finishes, but receive the DRX sign, and MAC control element wherein is " 1 ", stops current deexcitation timer-I so, and subscriber equipment is carried out new DRX process-IV;
If subscriber equipment received control information and packet before current deexcitation timer-I timing finishes, receive the DRX sign simultaneously, and MAC control element wherein is " 0 ", stops current deexcitation timer-I so, and subscriber equipment is carried out DRX process-I.
21. method according to claim 2 is characterized in that, when subscriber equipment was carried out DRX process-III in the step 4, self adaptation was adjusted the duration length of rest period.
22. method according to claim 21, it is characterized in that, the adjustment of the duration length of rest period comprises: control its receiver l (l 〉=1) is inferior in DRX process-III when entering rest period when subscriber equipment, the duration length of this rest period is calculated according to following mode:
T s ( l ) = min { f ( T s ( 0 ) ) , T s MAX }
T wherein s(0) expression duration rest period initial value; T s MAXThe maximum of expression duration rest period; F (T s(0)) is T sThe function of arbitrary form (0).
23. method according to claim 2 is characterized in that, when subscriber equipment was carried out DRX process-IV in the step 4, self adaptation was regulated the maximum opening time of deexcitation timer-I.
24. method according to claim 23, it is characterized in that, the maximum open-interval method of adjustment of described deexcitation timer-I is: when subscriber equipment begins the inferior DRX process of m (m 〉=1)-IV, suppose that the maximum duration length of deexcitation timer-I of just having finished is T i I(m-1), among the m time DRX process-IV, the longest run time of deexcitation timer-I calculates according to following mode so:
T i I ( m ) = min { g ( T i I ( 0 ) ) , T i I - MAX } , m ≥ 1
T wherein i I(0) initial value of expression deexcitation timer-I longest run time; T i I-MAXThe maximum of expression deexcitation timer-I longest run time; G (T i I(0)) is T i IThe function of arbitrary form (0).
25. the device based on the discontinuous reception of dynamic self-adapting ground control subscriber equipment of the described method of claim 1-24 is characterized in that this device is arranged in the base station, comprising:
The service queue module is used for the packet that buffer memory sends to subscriber equipment;
The DRX sign is provided with module: be used for the number according to user apparatus service formation packet, dynamically adjust subscriber equipment and carry out discontinuous receiving course, and the DRX sign that the indication subscriber equipment carries out discontinuous receiving course change further is set;
Transmitter module is used to launch control information, packet and the DRX sign of generation.
26. the device based on the discontinuous reception of dynamic self-adapting ground control subscriber equipment of the described method of claim 1-24 is characterized in that this device is arranged in the subscriber equipment, comprising:
Receiver module is used to receive control information, packet and described DRX sign from base station side;
Control information, packet and DRX flag decoding module are used for the control information, business datum and the described DRX sign that receive are decoded; With
Discontinuous reception control module be used for indicating to determine the discontinuous receiving course that subscriber equipment is carried out according to described DRX, and further receiver control enters different active states according to performed discontinuous receiving course.
CN200910087909A 2009-06-25 2009-06-25 Method and device for dynamically controlling discontinuous reception of UE Expired - Fee Related CN101583178B (en)

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