CN101047951B - Media access control station transport method in radio communication system - Google Patents
Media access control station transport method in radio communication system Download PDFInfo
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- CN101047951B CN101047951B CN2006100659349A CN200610065934A CN101047951B CN 101047951 B CN101047951 B CN 101047951B CN 2006100659349 A CN2006100659349 A CN 2006100659349A CN 200610065934 A CN200610065934 A CN 200610065934A CN 101047951 B CN101047951 B CN 101047951B
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Abstract
This invention discloses a transfer method for medfia access control state in a radio communication system including the following steps: a base station measures all PRI queue service volumes or an engross rate of the buffer region of a user device at MAC layer and enquires the MAC state of said device in the base station, if it is an active state and the service volume of all service PRI queues or the occupation rate of the buffer region are lower than set threshold and continues the set time, then the MAC state corresponding to the user device in the MAC layer is transferred to a discontinuous sending/receiving state, and the synchronous control state of the MAC of said device is transferred to the MAC discontinuous sending/receiving state, if it is the discontinuous sending/receiving state and one or the service volume of multiple service PRI quiues or the occupation rate of the buffer region is higher than the threshold value, then, the MAC state in the base station layer is transferred to the MAC active state as well as the control state, otherwise, it keeps the original one.
Description
Technical field
The present invention relates to the digital mobile communication technical field, particularly media access control station transport method under the subscriber equipment connection mode in the wireless communication system.
Background technology
In the 3-G (Generation Three mobile communication system), subscriber equipment (UE) can be in four kinds of states according to business characteristic respectively with the different of the transmission channel kinds that is distributed under wireless connection control (RRC) connection mode: CELL _ DCH status (CELL_DCH), sub-district _ forward access channel status (CELL_FACH), cell _ paging channel state (CELL_PCH) and universal land radio access web (UTRAN) Acceditation Area _ paging channel state (URA_PCH), its activity reduces successively.Network based corresponding strategy by rrc layer signaling control transmission channel type switching and the migration between four kinds of states, but these operations cause bigger system delay.
The radio resource control RRC state of subscriber equipment has three kinds of released states, idle condition, active state in the 3G (Third Generation) Moblie long evolving system, and wherein active state comprises two kinds of medium access controls (MAC) state: MAC active state (MAC ACTIVE) and the discontinuous transmission/accepting state of MAC (MAC DORMANT).Under the MAC active state, the following dispatch on the downlink physical control channel, indicate information such as (CQI) of subscriber equipment continuous monitoring downlink shared transmission channel by ascending physical signal control channel feedback acknowledgment/non-affirmation (ACK/NACK) message and Physical Downlink Shared Channel quality, and and the base station between reception/transmission signaling and user data continuously; Under the discontinuous transmission/accepting state of MAC, subscriber equipment in discontinuous transmission/reception (DTX/DRX) mode according to DRX cycle period (DRXcycle) at interval transmission/reception signaling and user data.Switching between two kinds of mac states of subscriber equipment is by base stations control, and the base station is measured the control subscriber equipment by medium access control (MAC) layer and whether carried out discontinuous transmission/reception.
If in this system, network is still controlled migration between these three kinds of states according to corresponding strategy by the rrc layer signaling, will cause bigger system delay.
Summary of the invention
The technical problem to be solved in the present invention provides media access control station transport method in a kind of wireless communication system, can control the migration of subscriber equipment between two kinds of mac states in simple and effective ground, satisfies the QoS requirement of customer service.
In order to address the above problem, the invention provides media access control station transport method in a kind of wireless communication system, be applicable to the 3G (Third Generation) Moblie long evolving system, may further comprise the steps:
(a) the base station measurement subscriber equipment is at media access control MAC layer pairing all service priority formation traffic carrying capacity or buffer performance, and the mac state of this subscriber equipment in the inquiry base station, if the state of described MAC is the MAC active state, execution in step (b) then, if discontinuous transmission of MAC or accepting state, execution in step (c); Described subscriber equipment is divided into short period and long period two classes in discontinuous transmission of MAC or the employed discontinuous reception DRX cycle period of accepting state, every class comprises one or more ranks respectively, under the situation of short DRX cycle, base station and subscriber equipment keep physical layer synchronization, at long DRX cycle, base station and subscriber equipment can keep or not keep physical layer synchronization, if lost physical layer synchronization, it is synchronous then to need to carry out earlier descending paging or upstream physical layer before scheduling, dispatches afterwards synchronously;
(b) if all being lower than, the traffic carrying capacity of all described service priority formations or buffer performance set thresholding and lasting setting-up time, then move to discontinuous transmission of MAC or accepting state corresponding to the mac state of this subscriber equipment in the base station MAC layer, this subscriber equipment Synchronization Control mac state is moved to discontinuous transmission of MAC or accepting state, finishes; Otherwise keep former mac state, finish;
(c) if having the traffic carrying capacity of one or more service priority formations or buffer performance to be higher than the setting thresholding, then move to the MAC active state corresponding to the mac state of this subscriber equipment in the base station MAC layer, and notify described subscriber equipment, described subscriber equipment control mac state is moved to the MAC active state; Otherwise keep former mac state, finish.
Further, said method also can have following characteristics: when described step (b) is moved to discontinuous transmission of MAC or accepting state from the MAC active state, select the DRX short period as DRX cycle, if being 0, the traffic carrying capacity of all service priority formations this moment also continues setting-up time, then described base station is used the DRX long period instead, and notifies described subscriber equipment with this DRX cycle.
Further, said method also can have following characteristics: in the described step (c), be to use DRX to have the traffic carrying capacity of one or more service priority formations or buffer performance to be higher than respective threshold during the short period; Perhaps when using the DRX long period, there are the traffic carrying capacity of one or more service priority formations or buffer performance to be higher than at 0 o'clock, to move to the MAC active state corresponding to the mac state of this subscriber equipment in the base station MAC layer, and notify described subscriber equipment, described subscriber equipment to control mac state again to move to the MAC active state.
Further, said method also can have following characteristics: in the described step (b), after moving to discontinuous transmission of MAC or accepting state corresponding to the mac state of this subscriber equipment in the base station MAC layer, the base station is to the notice of this subscriber equipment transmit status migration, and carrying DRX cycle, after this subscriber equipment was notified, the control mac state was moved to discontinuous transmission of MAC or accepting state, and DRX cycle is set, thereby it is synchronous to finish mac state.
Further, said method also can have following characteristics: in the described step (b), after moving to discontinuous transmission of MAC or accepting state corresponding to the mac state of this subscriber equipment in the base station MAC layer, no longer send schedule information to this subscriber equipment, if described subscriber equipment is not received the schedule information of base station at continuous several Transmission Time Intervals, timer TIMER B is set then; If still do not receive the schedule information of base station during the described timer TIMER B, the mac state of controlling subscriber equipment after during then described timer TIMER B ultrasonic is voluntarily moved to discontinuous transmission of MAC or accepting state, thereby realizes that mac state is synchronous.
Further, said method also can have following characteristics: described several Transmission Time Intervals continuously add the above timer TIMER B sum should be less than the DRX short period.
Further, said method also can have following characteristics: the thresholding of setting for the traffic carrying capacity or the buffer performance of described service priority formation sets in advance, or dynamically set according to corresponding business priority query traffic carrying capacity or buffer performance measurement result, and the thresholding of different service priority formation correspondences is set respectively.
Further, said method also can have following characteristics: in the described step (b), when the MAC active state is moved to discontinuous transmission of MAC or accepting state, if comprise speech business VoIP real time business in the described service priority formation, then require as DRX cycle with the maximum delay that is not higher than described VoIP real time business based on Internet Protocol; If do not comprise the VoIP real time business in the described service priority formation but comprise other real time business, then require as DRX cycle with the maximum delay that is not higher than described other real time business; If described service priority formation only has non-real-time service, then determine DRX cycle according to the quality of service requirement of non-real-time service.
In sum, media access control station transport method under a kind of radio resource control RRC connection mode in the wireless communication system provided by the invention, can satisfy the QoS requirement of customer service well based on the mac state control strategy of service priority formation measuring business volume, controlling schemes is simple and feasible, and efficient is very high.MAC layer or physical layer control signaling method, the signaling consumption when two kinds of subscriber equipment mac state migrations of timer control mode control method has all reduced the mac state migration well, improved systematic function, reached and used different schemes dynamically to control the effect of subscriber equipment battery saving mode.
Description of drawings
Fig. 1 is the system configuration schematic diagram of embodiment;
Fig. 2 is the mac state conversion schematic diagram of embodiment;
Fig. 3 is the mac state conversion timing sequence example schematic of embodiment;
Fig. 4 is the control flow chart that subscriber equipment mac state corresponding in the embodiment base station is moved;
Fig. 5 is the control flow chart of subscriber equipment mac state migration among the embodiment;
Fig. 6 is the mac state migration control flow chart that subscriber equipment adopts timer among the embodiment;
Fig. 7 is the mac state migration control mode schematic diagram that subscriber equipment adopts timer among the embodiment.
Embodiment
In the present invention, the MAC controlled entity is measured the mac state migration that determines subscriber equipment according to the traffic carrying capacity or the buffer performance of subscriber equipment.The media access control layer of base station and the media access control layer of subscriber equipment be the mac state of maintenance customer's equipment respectively, and the mac state migration is synchronous in above-mentioned two equipment.After the mac state migration corresponding to subscriber equipment in the base station, mac state is switched by MAC layer or physical layer control signaling subscriber equipment in the base station; Perhaps subscriber equipment is controlled the mac state migration after utilizing timer to judge mac state migration corresponding in the base station voluntarily.
Fig. 1 is the system configuration schematic diagram of present embodiment, has only listed among the figure and function associated entity of the present invention, is construed as also to comprise other functional entitys.As shown in the figure, the media access control layer MAC1 of base station comprises measurement entity 3, MAC controlled entity 4, some service priority formations 2, timer TIMER A, TIMER A ' and traffic carrying capacity thresholding X are Control Parameter, are not logic entities independently, so do not draw separately in the drawings.Subscriber equipment media access control layer 5 comprises MAC controlled entity 6, and timer TIMER B is a Control Parameter, is not logic entity independently, so do not draw separately in the drawings.Wherein timer TIMER A, TIMER A ' are relevant with class of service with the length setting of timer TIMER B; Traffic carrying capacity thresholding X is a class value, its setting and class of service, up, following line correlation, and traffic carrying capacity is below or above traffic carrying capacity thresholding X and represents that all are up, downlink business all is below or above traffic carrying capacity thresholding separately.The traffic carrying capacity of measured service priority formation is refered in particular in the corresponding service priority query traffic carrying capacity corresponding to described subscriber equipment, wherein:
Described measurement entity 3 is measured subscriber equipmenies corresponding all service priority formations 2 in the base station in real time, and in a periodic manner or the Event triggered mode send measurement reports to described MAC controlled entity 4.Described MAC controlled entity 4 is dispatched user data in the described service priority formation 2 according to measurement report, control the conversion between its continuous transmission/reception and the discontinuous transmission/accepting state, it is the mac state migration, and can carry out the mac state migration process by the described MAC controlled entity 6 of MAC layer or physical layer control signaling subscriber equipment, can not trigger aforesaid operations by MAC layer or physical layer control signaling yet.The mac state migration of the described MAC controlled entity 6 control subscriber equipmenies of subscriber equipment can be controlled signaling method, the migration of timer control mode dual mode control subscriber equipment mac state by MAC layer or physical layer.Wherein MAC layer or physical layer control signaling method can be used for controlling two kinds of mac states and changes change with DRX cycle mutually, and the timer control mode can be used to control subscriber equipment and move to the discontinuous transmission/accepting state of MAC from the MAC active state.
Subscriber equipment is divided into short period and long period two classes at the employed DRX cycle period of the discontinuous transmission/accepting state of MAC, every class can also have multiple rank respectively, being disposed by the wireless network control layer, is example with short period DRX 1, long period DRX 2 in the present embodiment.When the initial condition of subscriber equipment was the MAC active state, the control flow of corresponding subscriber equipment mac state migration may further comprise the steps as shown in Figure 4 in the base station:
Step 410, the measurement entity measuring subscriber equipment in the base station be in the upstream traffic and the downlink traffic of pairing all the service priority formations of media access control layer, and notify MAC controlled entity measurement result with cycle report or Event triggered mode;
In the present embodiment, the mac state control strategy is a traffic carrying capacity as one or more traffic carrying capacity priority query during greater than corresponding service amount thresholding X, and the mac state of described subscriber equipment correspondence remains on the MAC active state; When the traffic carrying capacity of all service priority formations all is lower than corresponding service amount thresholding X, timer TIMER A is set, if the traffic carrying capacity that one or more traffic carrying capacity priority query is arranged before timer TIMER A is overtime then kills timer TIMERA greater than corresponding business amount thresholding X; If the traffic carrying capacity of all service priority formations all was lower than corresponding service amount thresholding X before timer TIMER A was overtime always, the controlled entity of MAC described in the base station mac state of the controlling described subscriber equipment correspondence discontinuous transmission/accepting state of MAC of moving into then; When the discontinuous transmission of MAC/accepting state, if the traffic carrying capacity that one or more traffic carrying capacity priority query is arranged greater than corresponding service amount thresholding X, the controlled entity of MAC described in the base station mac state of the controlling described subscriber equipment correspondence MAC active state of moving into then.
Timer TIMER A can be that preset value or described scheduling entity are according to class of service situation Dynamic Selection herein.Traffic carrying capacity thresholding X can be preset value or dynamically set according to the measuring business volume result of corresponding business priority query that different service priority formations can be provided with different traffic carrying capacity thresholding X.
When mac state is moved into the discontinuous transmission of MAC/accepting state, select under the situation of short period DRX 1 as DRX cycle, if the traffic carrying capacity of all service priority formations is 0, timer TIMER A ' then is set, timer TIMER A ' is if the traffic carrying capacity of all service priority formations is 0 before overtime always, and described MAC controlled entity is used long period DRX 2 instead.In the process of using long period DRX 2, if the traffic carrying capacity that one or more service priority formations are arranged greater than 0, the mac state that then described MAC controlled entity the is controlled described subscriber equipment correspondence MAC active state of moving into.
Short DRX cycle and long DRX cycle are disposed by radio resource control layer, and its length can be one group of preset value, is selected according to traffic carrying capacity and class of service by described MAC controlled entity.Under the situation of short DRX cycle, base station and subscriber equipment should keep physical layer synchronization, can keep synchronously by periodic physical layer synchronization signaling, to guarantee timely scheduling.At long DRX cycle, base station and subscriber equipment can keep or not keep physical layer synchronization, if lost physical layer synchronization, it is synchronous then to need to carry out earlier descending paging or upstream physical layer before scheduling, dispatch after synchronously.
In the above-mentioned mac state control strategy, if described service priority formation has only VoIP (based on IP (Internet protocol, be Internet Protocol) speech business) real time business, or have VoIP real time business, other real time business simultaneously, or have VoIP real time business, other real time business, non-real-time service simultaneously.When mac state is moved into the discontinuous transmission of MAC/accepting state, select short period DRX1 as DRX cycle, DRX 1 can be the maximum delay requirement of VoIP business, for example is 20ms.DRX cycle arrives back MAC controlled entity dispatch user data, preferentially guarantees the scheduling resource of VoIP real time business and other real time business.
If described service priority formation has only other real time business, or have other real time business, non-real-time service simultaneously, and there is not the VoIP real time business, when mac state is moved into the discontinuous transmission of MAC/accepting state, select short period DRX 1 as DRX cycle, DRX 1 can be the maximum delay requirement of described other real time business, for example is 40ms.DRX cycle arrives back MAC controlled entity dispatch user data, preferentially guarantees the scheduling resource of real time business.
If described service priority formation only has non-real-time service, the mac state discontinuous transmission/accepting state of MAC of moving into (is represented discontinuous transmission and/or accepting state, both possibility individualisms or existence simultaneously) time, select short period DRX 1 as DRX cycle, the QoS (service quality) that Cycle Length can be taken all factors into consideration non-real-time service requires to determine, for example is 80ms.DRX cycle arrives back MAC controlled entity dispatch user data, preferentially guarantees the scheduling resource of the business that priority is high.
Fig. 2 is the mac state conversion schematic diagram of present embodiment, all represents with this figure corresponding to the migration of mac state in the mac state of subscriber equipment and the subscriber equipment media access control layer in the media access control layer of base station.The trigger mechanism of mac state conversion is based on the mac state control strategy of service priority formation measuring business volume.
1. discontinuous transmission/accepting state from the MAC active state to MAC.If real time business is only arranged, or real time business and non-real-time service coexistence, or non-real-time service is only arranged, timer TIMER A keeps below described traffic carrying capacity thresholding X in the time after the traffic carrying capacity of all service priority formations all is lower than corresponding business amount thresholding X;
2. keep the discontinuous transmission/accepting state of MAC.Under the discontinuous transmission/accepting state of MAC, if real time business is only arranged, or real time business and non-real-time service coexistence, or have only non-real-time service, when using short period DRX 1, when the traffic carrying capacity of all service priority formations all keeps below corresponding business amount thresholding X; When perhaps using long period DRX 2, when the traffic carrying capacity of all service priority formations all remains 0.
From the discontinuous transmission/accepting state of MAC to the MAC active state.Under the discontinuous transmission/accepting state of MAC, if having the traffic carrying capacity of one or more service priority formations to be higher than corresponding business amount thresholding X when using short period DRX 1 or long period DRX 2; When perhaps using long period DRX 2, there is the traffic carrying capacity of one or more service priority formations to be higher than 0;
4. keep the MAC active state.Under the MAC active state, if there is the traffic carrying capacity of one or more service priority formations to be higher than traffic carrying capacity thresholding X, maybe when the traffic carrying capacity of all service priority formations all is lower than corresponding business amount thresholding X, there is the traffic carrying capacity of one or more service priority formations to be higher than corresponding business amount thresholding X again in the time at timer TIMER A.
Under the MAC active state, the described MAC controlled entity of base station is controlled the continuous transmission/reception of described subscriber equipment corresponding service Priority Queues; Under the discontinuous transmission/accepting state of MAC, the described MAC controlled entity of base station is controlled the discontinuous transmission/reception of described subscriber equipment corresponding service Priority Queues.
Step 430, after pairing mac state migration of subscriber equipment or DRX cycle changed in the base station, described mac state controlled entity sent the control corresponding signaling to MAC controlled entity described in the described subscriber equipment.
Described control signaling comprises four kinds: move to the discontinuous transmission/accepting state of MAC from the MAC active state, parameters such as DRX cycle need in the signaling to carry under one's arms; Move to the MAC active state from the discontinuous transmission/accepting state of MAC; Keep discontinuous transmission/accepting state of MAC or MAC active state (optional); Change DRX cycle.
In the present embodiment, the control flow of subscriber equipment mac state migration may further comprise the steps as shown in Figure 5:
Migration is corresponding mac state or revises DRX cycle according to control signaling control mac state for step 520, the controlled entity of MAC described in the subscriber equipment.
In addition, because under normal circumstances, almost each TTI subscriber equipment can both be received corresponding control information, according to these characteristics, in another embodiment of the present invention, adopt the timer mode of moving to the discontinuous transmission/accepting state of MAC based on the described MAC controlled entity control subscriber equipment of subscriber equipment from the MAC active state.The controlled entity of MAC described in the base station is after control is moved to the discontinuous transmission/accepting state of MAC corresponding to the mac state of subscriber equipment, the described MAC controlled entity to subscriber equipment does not send MAC layer or physical layer control signaling, the control flow of subscriber equipment mac state migration may further comprise the steps as shown in Figure 6:
Step 620, if still do not receive the schedule information of base station during the timer TIMER B, the mac state of controlling subscriber equipment after then during timer TIMER B ultrasonic is voluntarily moved to the discontinuous transmission/accepting state of MAC, and the DRX cycle period is according to the acquiescence short period of class of service using system configuration.
In this mode, the change of DRX cycle needs the described MAC controlled entity of the described MAC controlled entity of base station with MAC layer or physical layer signaling notifying user equipment.This scheme need be when timer TIMER B ultrasonic preceding base station and subscriber equipment keep the physical layer synchronization state, requiring continuously, several TTI add that timer TIMER B sum is less than the DRX short period.
In an employing timer mode example, as shown in Figure 7, when initial, the pairing mac state of subscriber equipment is H in the base station, and H represents the pairing MAC active state of subscriber equipment in the base station; When time A, mac state is moved to the discontinuous transmission/accepting state of the pairing MAC of subscriber equipment in the base station that I represents by H.
When initial, the mac state of subscriber equipment is the MAC active state that J represents; When time B, the described MAC controlled entity of subscriber equipment several TTI is not continuously received schedule information or control information, and timer TIMER B is set; When time C, during timer TIMER B ultrasonic before MAC controlled entity described in the subscriber equipment never receive schedule information or control signaling, the subscriber equipment mac state is moved to the discontinuous transmission/accepting state of MAC that K represents.
Fig. 3 shows the mac state conversion timing sequence of an example, is that example has illustrated that MAC controlled entity described in the base station carries out the process of mac state migration control with 4 kinds of situations, and actual situation will be not limited to these situations.If the MAC initial condition of subscriber equipment correspondence is the MAC active state.
Situation 1: when the traffic carrying capacity of all service priority formations all is lower than corresponding business amount thresholding X, timer TIMER A (1) is set; The traffic carrying capacity of all service priority formations all kept below corresponding business amount thresholding X before timer TIMER A was overtime, and the mac state of subscriber equipment is moved to the discontinuous transmission/accepting state of MAC (2).
Situation 2: in the discontinuous transmission/accepting state of MAC, use short period DRX 1, if there is the traffic carrying capacity of one or more service priority formations to be higher than corresponding business amount thresholding X, then the mac state of subscriber equipment is moved to MAC active state (3).
Situation 3: at the MAC active state, when the traffic carrying capacity of all service priority formations all is lower than traffic carrying capacity thresholding X, timer TIMER A (4) is set, before timer TIMER A is overtime, there is the traffic carrying capacity of one or more service priority formations to be higher than corresponding business amount thresholding X, then kills timer TIMER A (5).When the traffic carrying capacity of all service priority formations all is lower than traffic carrying capacity thresholding X, timer TIMER A (6) is set; The traffic carrying capacity of all service priority formations all was lower than corresponding business amount thresholding X before timer TIMER A was overtime, and the mac state of subscriber equipment is moved to the discontinuous transmission/accepting state of MAC (7).
Situation 4: in the discontinuous transmission/accepting state of MAC, use short period DRX 1, the traffic carrying capacity of all service priority formations is at 0 o'clock, and timer TIMER A (8) is set.If the traffic carrying capacity of all service priority formations remains 0 during the timer TIMER A, the controlled entity of MAC described in the base station can be used long period DRX 2 (9) instead.During using long period DRX 2, if the traffic carrying capacity that one or more service priority formations are arranged greater than 0, the mac state of then described MAC controlled entity control subscriber equipment is moved to MAC active state (10).
Situation 5: at the MAC active state, the traffic carrying capacity of all service priority formations all is lower than corresponding business amount thresholding X, and timer TIMER A (11) is set this moment; If the traffic carrying capacity of all service priority formations was all less than corresponding business amount thresholding X (12) before timer TIMER A was overtime, then the mac state of subscriber equipment is moved to the discontinuous transmission/accepting state of MAC (situation 6).
Other situation that may occur is no longer exhaustive.In the discontinuous transmission/accepting state of MAC, described MAC controlled entity is dispatched the business of described subscriber equipment with discontinuous transmission/receive mode.
In another embodiment of the present invention, the MAC controlled entity of base station decides the mac state migration of subscriber equipment according to the buffer performance of relative user equipment in corresponding service priority query, the mac state migration of its flow process and above-mentioned traffic carrying capacity decision subscriber equipment according to subscriber equipment is basic identical, difference only is the difference of thresholding, determine the description of the mac state migration of subscriber equipment based on above-mentioned traffic carrying capacity according to subscriber equipment, those skilled in the art do not need can decide according to the buffer performance of relative user equipment in corresponding service priority query through creative work the mac state migration of subscriber equipment, repeat no more here.
Claims (8)
1. media access control station transport method in the wireless communication system is applicable to the 3G (Third Generation) Moblie long evolving system, may further comprise the steps:
(a) the base station measurement subscriber equipment is at media access control MAC layer pairing all service priority formation traffic carrying capacity or buffer performance, and the mac state of this subscriber equipment in the inquiry base station, if the state of described MAC is the MAC active state, execution in step (b) then, if discontinuous transmission of MAC or accepting state, execution in step (c); Described subscriber equipment is divided into short period and long period two classes in discontinuous transmission of MAC or the employed discontinuous reception DRX cycle period of accepting state, every class comprises one or more ranks respectively, under the situation of short DRX cycle, base station and subscriber equipment keep physical layer synchronization, at long DRX cycle, base station and subscriber equipment can keep or not keep physical layer synchronization, if lost physical layer synchronization, it is synchronous then to need to carry out earlier descending paging or upstream physical layer before scheduling, dispatches afterwards synchronously;
(b) if all being lower than, the traffic carrying capacity of all described service priority formations or buffer performance set thresholding and lasting setting-up time, then move to discontinuous transmission of MAC or accepting state corresponding to the mac state of this subscriber equipment in the base station MAC layer, this subscriber equipment Synchronization Control mac state is moved to discontinuous transmission of MAC or accepting state, finishes; Otherwise keep former mac state, finish;
(c) if having the traffic carrying capacity of one or more service priority formations or buffer performance to be higher than the setting thresholding, then move to the MAC active state corresponding to the mac state of this subscriber equipment in the base station MAC layer, and notify described subscriber equipment, described subscriber equipment control mac state is moved to the MAC active state; Otherwise keep former mac state, finish.
2. the method for claim 1, it is characterized in that, when described step (b) is moved to discontinuous transmission of MAC or accepting state from the MAC active state, select the DRX short period as DRX cycle, if being 0, the traffic carrying capacity of all service priority formations this moment also continues setting-up time, then described base station is used the DRX long period instead, and notifies described subscriber equipment with this DRX cycle.
3. method as claimed in claim 2 is characterized in that, in the described step (c), is to use DRX to have the traffic carrying capacity of one or more service priority formations or buffer performance to be higher than respective threshold during the short period; Perhaps when using the DRX long period, there are the traffic carrying capacity of one or more service priority formations or buffer performance to be higher than at 0 o'clock, to move to the MAC active state corresponding to the mac state of this subscriber equipment in the base station MAC layer, and notify described subscriber equipment, described subscriber equipment to control mac state again to move to the MAC active state.
4. method as claimed in claim 2, it is characterized in that, in the described step (b), after moving to discontinuous transmission of MAC or accepting state corresponding to the mac state of this subscriber equipment in the base station MAC layer, the base station is to the notice of this subscriber equipment transmit status migration, and carries DRX cycle, after this subscriber equipment is notified, the control mac state is moved to discontinuous transmission of MAC or accepting state, and DRX cycle is set, thereby it is synchronous to finish mac state.
5. method as claimed in claim 2, it is characterized in that, in the described step (b), after moving to discontinuous transmission of MAC or accepting state corresponding to the mac state of this subscriber equipment in the base station MAC layer, no longer send schedule information to this subscriber equipment, if described subscriber equipment is not received the schedule information of base station at continuous several Transmission Time Intervals, timer TIMER B is set then; If still do not receive the schedule information of base station during the described timer TIMER B, the mac state of controlling subscriber equipment after then described timer TIMERB is overtime is voluntarily moved to discontinuous transmission of MAC or accepting state, thereby realizes that mac state is synchronous.
6. method as claimed in claim 5 is characterized in that, described several Transmission Time Intervals continuously add the above timer TIMER B sum should be less than the DRX short period.
7. the method for claim 1, it is characterized in that, the thresholding of setting for the traffic carrying capacity or the buffer performance of described service priority formation sets in advance, or dynamically set according to corresponding business priority query traffic carrying capacity or buffer performance measurement result, and the thresholding of different service priority formation correspondences is set respectively.
8. method as claimed in claim 1 or 2, it is characterized in that, in the described step (b), when the MAC active state is moved to discontinuous transmission of MAC or accepting state, if comprise speech business VoIP real time business in the described service priority formation, then require as DRX cycle with the maximum delay that is not higher than described VoIP real time business based on Internet Protocol; If do not comprise the VoIP real time business in the described service priority formation but comprise other real time business, then require as DRX cycle with the maximum delay that is not higher than described other real time business; If described service priority formation only has non-real-time service, then determine DRX cycle according to the quality of service requirement of non-real-time service.
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| MY151801A (en) | 2007-01-30 | 2014-07-14 | Interdigital Tech Corp | Implicit drx cycle length adjustment control in lte_active mode |
| US8219119B2 (en) * | 2007-06-13 | 2012-07-10 | Innovative Sonic Limited | Method and apparatus for improving DRX operation in a wireless communications system |
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