CN102300297B - Discontinuous reception judgment method and device for evolved node B - Google Patents
Discontinuous reception judgment method and device for evolved node B Download PDFInfo
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Abstract
The invention discloses a discontinuous reception (DRX) judgment method and a DRX judgment device for an evolved node B (eNB). The method comprises the following steps of: setting a DRX_Compressed Timer for user equipment (UE) by using medium access control (MAC) on an eNB side; in an initial access process, controlling the DRX_Compressed Timer according to the random access type of the UE; and after the UE accesses successfully, controlling the DRX_Compressed Timer according to a requirement on the DRX in a service data processing process. Therefore, by using the method and the device, the DRX state of the UE can be acquired rapidly and accurately by the MAC on the eNB side, and the operation load and the design complexity of the MAC on the eNB side are reduced.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of decision method of discontinuous reception of evolved base station and device.
Background technology
Long Term Evolution (Long Term Evolution, LTE) system is controlled (Radio Resource Control to Radio Resource, RRC) state is simplified, only including the RRC free time (RRC_IDLE) is connected (RRC_CONNECTED) two states with RRC, in order to reach user terminal (Use Equipment, UE) object of economize on electricity, LTE system has been introduced discontinuous reception (Discontinues Reception under RRC_CONNECTED state, DRX) operator scheme, allow the discontinuous monitoring Physical Downlink Control Channel of UE (Physical Downlink Control Channel, PDCCH).
The DRX timer protocol parameter of being correlated with is provided in third generation partner program (The3rd Generation Partnership Project, 3GPP) 36.331R8b0 agreement, in 3GPP36.321R890 agreement, provides with the relevant timer of DRX.DRX timer parameter is by multimedia access control (the Medium Access Control of UE, MAC) control, 3GPP36.321R890 provided detailed operating process in agreement, comprise the startup, the terminal that judge timer, restart timer and timer state corresponding certain operations while changing.The MAC of evolved base station (Evolved Node B, eNB) side need to adopt identical control mode to counter according to the MAC of UE side, consistent to the understanding of the DRX state of UE to guarantee both sides.
In 3GPP36.321R890 agreement, for the monitoring of DRX, be provided with a plurality of timers for each UE, the MAC of eNB side need to control these timers of UE according to agreement.In order accurately to control these timers, the MAC of eNB side need to check that these timers are to guarantee to judge exactly according to timer the DRX state of UE in time.When user is many, for example one scheduling time interval there are tens users that can be scheduled simultaneously, this bring very large processing load pressure will to the MAC of eNB side; The more important thing is, according to the description to timer in agreement, the MAC of eNB side can not guarantee according to timer, to obtain exactly the DRX state of UE, although the MAC of eNB side has consumed a large amount of computing capabilitys and the time is controlled the timer of UE, but cannot accurately control.
Summary of the invention
The embodiment of the present invention provides decision method and the device of the DRX of a kind of eNB, obtains fast and accurately the DRX state of UE in order to realize the MAC of eNB side.
The decision method of the DRX of a kind of eNB that the embodiment of the present invention provides comprises:
The MAC of eNB side is the master timer (DRX_CompressedTimer) that UE arranges DRX activated state;
In initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE;
After UE accesses successfully, according to the requirement of DRX being controlled to DRX_CompressedTimer in business data processing process, wherein, if initial access process is competition random access procedure, the MAC of eNB side carries out DRX state of operation and judgement according to 3GPP36.321R890 agreement regulation, comprising:
The MAC of eNB side, after receiving the Msg3 that UE reports, is mapped to competition resolution timer Contention Resolution Timer on DRX_CompressedTimer;
And at the time point of eating dishes without rice or wine, starting DRX_CompressedTimer according to Msg3 message, the time point of eating dishes without rice or wine before DRX_CompressedTimer is overtime, sends to UE relevant data or signaling;
If initial access process is non-competing random access procedure, the MAC of eNB side carries out DRX state of operation and judgement according to 3GPP36.321R890 agreement regulation, comprising:
MAC sends after accidental access response Random Access Response, if receive the upstream message of UE, DRX_CompressedTimer=∞ is set.
The judgment device of the DRX of a kind of eNB that the embodiment of the present invention provides comprises:
Module is set, is used to UE that DRX_CompressedTimer is set;
Access control module, in initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE, and described access control module comprises: contention access control module and non-competing access control module, wherein,
Contention access control module, if be competition random access procedure for initial access process, receive after the Msg3 that UE reports, competition resolution timer Contention Resolution Timer is mapped on DRX_CompressedTimer, and at the time point of eating dishes without rice or wine, start DRX_CompressedTimer according to Msg3 message, the time point of eating dishes without rice or wine before DRX_CompressedTimer is overtime, sends to UE relevant data or signaling;
Non-competing access control module, if be non-competing random access procedure for initial access process, sends accidental access response Random Access Response, after receiving the upstream message of UE, DRX_CompressedTimer=∞ is set;
Business data processing control module, after accessing successfully at UE, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.
As seen through the above technical solutions, in the embodiment of the present invention, eNB is when the DRX state to UE is adjudicated, and the MAC of eNB side is that UE arranges DRX_CompressedTimer; In initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE; After UE accesses successfully, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.Therefore, application the present invention, can make the MAC of eNB side obtain fast and accurately the DRX state of UE, has reduced computational load and the design complexities of the MAC of eNB side.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a specific embodiment of the inventive method;
Fig. 2 is the schematic flow sheet of another specific embodiment of the inventive method;
Fig. 3 is the structural representation of apparatus of the present invention embodiment;
Fig. 4 is the structural representation of access control module in apparatus of the present invention embodiment;
Fig. 5 is the structural representation of business data processing control module in apparatus of the present invention embodiment.
Embodiment
The embodiment of the present invention provides the decision method of the DRX of a kind of eNB to comprise: the MAC of eNB side is that UE arranges DRX_CompressedTimer; In initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE; After UE accesses successfully, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.
Fig. 1 is the schematic flow sheet of a specific embodiment of the inventive method, shown in Figure 1, and the detailed process that eNB adjudicates at the DRX state to UE is as follows:
The MAC of step 101:eNB side is that UE arranges DRX_CompressedTimer.
Step 102: in initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE.
Here, an embodiment, initial access process is competition random access procedure, the MAC of eNB side carries out DRX state of operation and judgement according to agreement regulation, comprise: the MAC of eNB side is after receiving the Msg3 that UE reports, competition resolution timer (Contention Resolution Timer) is mapped to DRX_CompressedTimer upper, now
DRX_CompressedTimer=Contention?Resolution?Timer；
And at the time point of eating dishes without rice or wine, starting DRX_CompressedTimer according to Msg3 message, the time point of eating dishes without rice or wine before DRX_CompressedTimer is overtime, sends to UE relevant data or signaling.
Another embodiment, initial access process is non-competing random access procedure, the MAC of eNB side carries out DRX state of operation and judgement according to agreement regulation, comprise: MAC sends after accidental access response (Random Access Response), if receive the upstream message of UE, DRX_CompressedTimer is set for infinitely great, now
DRX_CompressedTimer=∞。
Step 103: after UE accesses successfully, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.
Below in conjunction with Fig. 2, to after accessing successfully at UE, according to the process of in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer, be described in detail.
Shown in Figure 2, after UE accesses successfully, according in business data processing process, the process of the requirement control DRX_CompressedTimer of DRX being comprised to following step:
Step 201: according to the DRX starting point computing formula that it is stipulated in the agreement that, start DRX_CompressedTimer.
Here, when UE has started short-period DRX, and meet
[(SFN*10)+A]Mod?T1=B?Mod?T1，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T1 is short-period DRX, B is DRX initial offset; Or, when UE has started macrocyclic DRX, and meet
[(SFN*10)+A]Mod?T2=B，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T2 is macrocyclic DRX, B is DRX initial offset, time period timer (On Duration Timer) is mapped on DRX_CompressedTimer.
Step 202:eNB side MAC, according to the data character of scheduling, is mapped to relevant timer on DRX_CompressedTimer.
Here, the data character of described scheduling is that the new biography of up-downgoing data is, the re-transmission of up-downgoing data or the up Selective resending formula (SR) that has determined (Pending) state.
If the up-downgoing data new biography of eNB side MAC scheduling UE, DRX inactivity timer DRXInactivity Timer is mapped on DRX_CompressedTimer, wherein, the starting point of DRX Inactivity Timer starts according to the time point of eating dishes without rice or wine of up-downgoing new data scheduling.When eNB side has issued after the instruction of DRX forced termination, DRX_CompressedTimer=0; And start formula renewal DRX_CompressedTimer according to DRX.
If the downlink data of eNB side MAC scheduling UE retransmits, first the timer of process level is upgraded to the counter of user class, then the counter of user class is mapped on DRX_CompressedTimer.
If uplink data retransmission or the up SR that has Pending state of eNB side MAC scheduling UE, and effectively timing of DRX_CompressedTimer, control the DRX state of UE according to DRX_CompressedTimer; If uplink data retransmission or the up SR that has Pending state of eNB side MAC scheduling UE, but DRX_CompressedTimer has stopped timing, DRX_CompressedTimer is set for infinitely great, until uplink state is invalid.
Step 203: judge that according to the state of DRX_CompressedTimer whether UE is in continuing listening state.
Fig. 3 is the structural representation of apparatus of the present invention embodiment.
Shown in Figure 3, the judgment device of the DRX of a kind of eNB that the embodiment of the present invention provides comprises: module 31, access control module 32, business data processing control module 33 are set, wherein,
Module 31 is set, is used to UE that DRX_CompressedTimer is set;
Access control module 32, in initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE;
Business data processing control module 33, after accessing successfully at UE, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.
Fig. 4 is the structural representation of access control module in apparatus of the present invention embodiment, shown in Figure 4, and access control module 32 comprises: contention access control module 41 and and non-competing access control module 42, wherein,
Contention access control module 41, if be competition random access procedure for initial access process, receive after the Msg3 that UE reports, Contention Resolution Timer is mapped on DRX_CompressedTimer, and at the time point of eating dishes without rice or wine, start DRX_CompressedTimer according to Msg3 message, the time point of eating dishes without rice or wine before DRX_CompressedTimer is overtime, sends to UE relevant data or signaling;
Non-competing access control module 42, if be non-competing random access procedure for initial access process, sends Random Access Response, after receiving the upstream message of UE, DRX_CompressedTimer is set for infinitely great.
Fig. 5 is the structural representation of business data processing control module in apparatus of the present invention embodiment, shown in Figure 5, and business data processing control module 33 comprises: start module 51, mapping block 52, judge module 53, wherein,
Start module 51, for the DRX starting point computing formula according to it is stipulated in the agreement that, start DRX_CompressedTimer;
Mapping block 52, for according to the data character of scheduling, is mapped to relevant timer on DRX_CompressedTimer;
Judge module 53, for judging that according to the state of DRX_CompressedTimer whether UE is in continuing listening state.
Here, described startup module 51 has been for when UE has started short-period DRX, and meets
[(SFN*10)+A]Mod?T1=B?Mod?T1，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T1 is short-period DRX, B is DRX initial offset; Or, when UE has started macrocyclic DRX, and meet
[(SFN*10)+A]Mod?T2=B，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T2 is macrocyclic DRX, B is DRX initial offset, time period timer (On Duration Timer) is mapped on DRX_CompressedTimer.
The data character of the described scheduling in described mapping block 52 is that the new biography of up-downgoing data is, the re-transmission of up-downgoing data or the up SR that has Pending state.
If described mapping block 52, for the up-downgoing data new biography of scheduling UE, is mapped to DRX Inactivity Timer on DRX_CompressedTimer; If the downlink data of scheduling UE retransmits, first the timer of process level is upgraded to the counter of user class, then the counter of user class is mapped on DRX_CompressedTimer; If uplink data retransmission or the up SR that has Pending state of scheduling UE, and effectively timing of DRX_CompressedTimer, control the DRX state of UE according to DRX_CompressedTimer; If uplink data retransmission or the up SR that has Pending state of scheduling UE, but DRX_CompressedTimer has stopped timing, DRX_CompressedTimer is set for infinitely great, until uplink state is invalid.
As seen through the above technical solutions, in the embodiment of the present invention, eNB is when the DRX state to UE is adjudicated, and the MAC of eNB side is that UE arranges DRX_CompressedTimer; In initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE; After UE accesses successfully, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.Therefore, application the present invention, can make the MAC of eNB side obtain fast and accurately the DRX state of UE, has reduced computational load and the design complexities of the MAC of eNB side.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (16)
1. a decision method of the discontinuous reception DRX of evolved base station eNB, is characterized in that, the method comprises the following steps:
The multimedia access control MAC of eNB side is the master timer DRX_CompressedTimer that user terminal UE arranges DRX activated state;
In initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE;
After UE accesses successfully, according to the requirement of DRX being controlled to DRX_CompressedTimer in business data processing process, wherein, if initial access process is competition random access procedure, the MAC of eNB side carries out DRX state of operation and judgement according to 3GPP36.321R890 agreement regulation, comprising:
The MAC of eNB side, after receiving the Msg3 that UE reports, is mapped to competition resolution timer Contention Resolution Timer on DRX_CompressedTimer;
And at the time point of eating dishes without rice or wine, starting DRX_CompressedTimer according to Msg3 message, the time point of eating dishes without rice or wine before DRX_CompressedTimer is overtime, sends to UE relevant data or signaling;
If initial access process is non-competing random access procedure, the MAC of eNB side carries out DRX state of operation and judgement according to 3GPP36.321 R890 agreement regulation, comprising:
MAC sends after accidental access response Random Access Response, if receive the upstream message of UE, DRX_CompressedTimer=∞ is set.
2. the method for claim 1, is characterized in that, according to the requirement of DRX being controlled to DRX_CompressedTimer in business data processing process, comprising:
According to the 3GPP36.321R890 DRX starting point computing formula that it is stipulated in the agreement that, start DRX_CompressedTimer;
ENB side MAC, according to the data character of scheduling, is mapped to relevant timer on DRX_CompressedTimer;
According to the state of DRX_CompressedTimer, judge that whether UE is in continuing listening state.
3. method as claimed in claim 2, is characterized in that, according to the 3GPP36.321 R890 DRX starting point computing formula that it is stipulated in the agreement that, starts DRX_CompressedTimer and comprises:
When UE has started short-period DRX, and meet
[(SFN*10)+A]Mod?T1=B?Mod?T1，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T1 is short-period DRX, B is DRX initial offset, time period timer On Duration Timer is mapped on DRX_CompressedTimer.
4. method as claimed in claim 2, is characterized in that, according to the 3GPP36.321R890 DRX starting point computing formula that it is stipulated in the agreement that, starts DRX_CompressedTimer and comprises:
When UE has started macrocyclic DRX, and meet
[(SFN*10)+A]Mod?T2=B，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T2 is macrocyclic DRX, B is DRX initial offset, On Duration Timer is mapped on DRX_CompressedTimer.
5. method as claimed in claim 2, is characterized in that, the data character of described scheduling is that the new biography of up-downgoing data is, the re-transmission of up-downgoing data or the up Selective resending formula SR that has determined Pending state.
6. method as claimed in claim 2, is characterized in that, eNB side MAC, according to the data character of scheduling, is mapped to DRX_CompressedTimer relevant timer upper, comprising:
If the up-downgoing data new biography of eNB side MAC scheduling UE, is mapped to DRX inactivity timer DRX Inactivity Timer on DRX_CompressedTimer.
7. method as claimed in claim 2, is characterized in that, eNB side MAC, according to the data character of scheduling, is mapped to DRX_CompressedTimer relevant timer upper, comprising:
If the downlink data of eNB side MAC scheduling UE retransmits, first the timer of process level is upgraded to the counter of user class, then the counter of user class is mapped on DRX_CompressedTimer.
8. method as claimed in claim 2, is characterized in that, eNB side MAC, according to the data character of scheduling, is mapped to DRX_CompressedTimer relevant timer upper, comprising:
If uplink data retransmission or the up SR that has Pending state of eNB side MAC scheduling UE, and effectively timing of DRX_CompressedTimer, control the DRX state of UE according to DRX_CompressedTimer;
If uplink data retransmission or the up SR that has Pending state of eNB side MAC scheduling UE, but DRX_CompressedTimer has stopped timing, and DRX_CompressedTimer=∞ is set, until uplink state is invalid.
9. a judgment device of the discontinuous reception DRX of evolved base station eNB, is characterized in that, this device comprises:
Module is set, is used to user terminal UE that the master timer DRX_CompressedTimer of DRX activated state is set;
Access control module, in initial access process, according to the Type Control DRX_CompressedTimer of the random access of UE, and described access control module comprises: contention access control module and non-competing access control module, wherein,
Contention access control module, if be competition random access procedure for initial access process, receive after the Msg3 that UE reports, competition resolution timer Contention Resolution Timer is mapped on DRX_CompressedTimer, and at the time point of eating dishes without rice or wine, start DRX_CompressedTimer according to Msg3 message, the time point of eating dishes without rice or wine before DRX_CompressedTimer is overtime, sends to UE relevant data or signaling;
Non-competing access control module, if be non-competing random access procedure for initial access process, sends accidental access response Random Access Response, after receiving the upstream message of UE, DRX_CompressedTimer=∞ is set;
Business data processing control module, after accessing successfully at UE, according in business data processing process, the requirement of DRX being controlled to DRX_CompressedTimer.
10. device as claimed in claim 9, is characterized in that, described business data processing control module comprises: start module, mapping block, judge module, wherein,
Start module, for the DRX starting point computing formula that it is stipulated in the agreement that according to 3GPP36.321R890, start DRX_CompressedTimer;
Mapping block, for according to the data character of scheduling, is mapped to relevant timer on DRX_CompressedTimer;
Judge module, for judging that according to the state of DRX_CompressedTimer whether UE is in continuing listening state.
11. devices as claimed in claim 10, is characterized in that, described startup module is for when UE has started short-period DRX, if met
[(SFN*10)+A]Mod?T1=B?Mod?T1，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T1 is short-period DRX, B is DRX initial offset, time period timer On Duration Timer is mapped on DRX_CompressedTimer.
12. devices as claimed in claim 10, is characterized in that, described startup module is for when UE has started macrocyclic DRX, if met
[(SFN*10)+A]Mod?T2=B，
Wherein, SFN is System Frame Number, and A is subframe numbers, and in the cycle that T2 is macrocyclic DRX, B is DRX initial offset, On Duration Timer is mapped on DRX_CompressedTimer.
13. devices as claimed in claim 10, is characterized in that, the data character of described scheduling is that the new biography of up-downgoing data is, the re-transmission of up-downgoing data or the up Selective resending formula SR that has determined Pending state.
14. devices as claimed in claim 10, is characterized in that, if described mapping block is for the up-downgoing data new biography of scheduling UE, DRX inactivity timer DRX Inactivity Timer are mapped on DRX_CompressedTimer.
15. devices as claimed in claim 10, it is characterized in that, if described mapping block retransmits for the downlink data of scheduling UE, first the timer of process level is upgraded to the counter of user class, then the counter of user class is mapped on DRX_CompressedTimer.
16. devices as claimed in claim 10, it is characterized in that, if described mapping block is for uplink data retransmission or the up SR that has Pending state of scheduling UE, and DRX_CompressedTimer is effectively timing, according to DRX_CompressedTimer, the DRX state of UE is controlled;
If uplink data retransmission or the up SR that has Pending state of scheduling UE, but DRX_CompressedTimer has stopped timing, and DRX_CompressedTimer=∞ is set, until uplink state is invalid.
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