CN102014441A - DRX (Discontinuous Reception) parameter configuration method and system - Google Patents
DRX (Discontinuous Reception) parameter configuration method and system Download PDFInfo
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- CN102014441A CN102014441A CN2009101900143A CN200910190014A CN102014441A CN 102014441 A CN102014441 A CN 102014441A CN 2009101900143 A CN2009101900143 A CN 2009101900143A CN 200910190014 A CN200910190014 A CN 200910190014A CN 102014441 A CN102014441 A CN 102014441A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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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 DRX (Discontinuous Reception) parameter configuration method. The method comprises the following steps of: initiating a service by UE (User Equipment), acquiring a characteristic parameter of the service initiated by the UE, and establishing the mapping between the service characteristic parameter and the DRX parameter configuration by an evolution base station; and configuring the DRX parameter configuration mapped by the service characteristics to the UE through an RRC (Radio Resource Control) connection re-configuration process by the evolution base station and scheduling DRX by configuring the internal configuration process to an MAC (Media Access Control) layer. The invention also relates to a related LTE (Long Term Evolution) mobile communication system. The invention combines the service characteristic parameter of the UE and the parameter configuration of the DRX, correlates DRX cycle parameter with more reasonable parameter and configures to the UE and the eNB (evolved NodeB) for DRX scheduling so as to exert the energy-saving function of the DRX to the maximum extent, improve the utilization of idle port resources and increase the system throughput.
Description
Technical field
The present invention relates to LTE (long term evolution, Long Term Evolution) mobile communication system field, be specifically related to the discontinuous reception of a kind of maximum performance (Discontinuous Reception, DRX) electricity saving function DRX method for parameter configuration and system.
Background technology
The LTE mobile communication system is referring to Fig. 1, mainly comprise: core net (core network, CN) and Access Network (E_UTRAN), core net mainly comprises Mobility Management Entity (MobilityManagement Entity, MME) and gateway (Serving gateway, S-GW), Access Network is by Node B (evolved NodeB, eNB) formation of evolution.Interconnect, interconnect by the X2 interface interface between the Node B of the evolution that Access Network is inner different by S1 (interface between core net and the Access Network, carrying and control are separated) interface between core net and the Access Network.
In the LTE mobile communication system, consider that (User Equipment, UE) discontinuous reception (Discontinuous Reception, DRX) function have been introduced in economize on electricity to subscriber equipment.When UE is in Radio Resource control (radio resource control, RRC) during connection status, if RRC has disposed the DRX relevant parameter to UE, UE just is allowed to non-the detection constantly and receives the PDCCH channel, otherwise UE detects constantly and receives Physical Downlink Control Channel (Physics downlink control channel, PDCCH) channel.UE is only in that to detect the receiving circuit of opening it when receiving PDCCH in running order, other the time then close receiving circuit and enter deep sleep, thereby conserve batteries consumption.
DRX work schematic diagram is referring to Fig. 2.
Configuration parameter is described below:
DRX cycle (DRX Cycle): by On-Duration with immediately following thereafter repetition period that non-movable duration is formed.
The lasting duration of the descending sub frame that UE waits for after the DRX state is waken up, UE during this period of time receives PDCCH.(Physics downlink controlchannel, PDCCH) order then keep waking (awake) state up and starting non-Active Timer (inactivity timer) if UE successfully resolves a PDCCH.
Non-Active Timer (inactivity-timer): the descending sub frame of UE continues duration (successfully resolved a PDCCH from last time after), waits at UE during this period of time and successfully resolves a PDCCH order, if overtime UE enters the DRX state.If successfully resolve a PDCCH of transmission for the first time, UE should be restarted non-Active Timer.
Activate the lasting altogether duration that period (active-time): UE keeps " awake " wake-up states.This comprises: " on-duration " state in the DRX cycle cycle, non-Active Timer does not have UE overtime the time to carry out to continue time of receiving, with the time of waiting for the lasting reception of DL UE in retransmission execution at a HARQ RTT (HARQ roundtrip time, the two-way time of HARQ process) afterwards.So segment length equals on-duration during minimum activation, maximum not definition promptly can be unlimited.
The continuous PDCCH sub-frame number of the maximum that the DL of drx-RetransmissionTimer (drx retransmission timer): UE expectation retransmits.
The continuous subframes length that drxShortCycleTimer:short DRX cycle continues.
The subframe that drxStartOffset:DRX Cycle begins.
Can initiate under one or more professional situation the user, each business all has certain characteristic: the ip voice business has periodically; Downloading service has rapidity.If the parameter configuration of DRX and traffic performance do not match, just can not well reach the purpose of economize on electricity, interface-free resources can not be fully used, and throughput of system can reduce.
Summary of the invention
Main purpose of the present invention is: overcome the deficiencies in the prior art, a kind of reasonable disposition DRX parameter is provided, the discontinuous reception of maximum performance (Discontinuous Reception, DRX) electricity saving function DRX method for parameter configuration and system.
Technical problem of the present invention is solved by the following technical programs: a kind of discontinuous reception (DRX) method for parameter configuration, specifically may further comprise the steps: user equipment start service, the Node B of evolution is obtained the traffic performance parameter, sets up the mapping relations of described traffic performance parameter and discontinuous reception parameters configuration; To connect the reprovision process by RRC by the discontinuous reception parameters that mapping relations are determined and dispose, dispose media access control layer to MAC by the internal configurations process to subscriber equipment.
Described discontinuous reception parameters is meant the discontinuous receiving cycle parameter, and described traffic performance parameter is meant the service period parameter, and described mapping relations are meant selection of discontinuous receiving cycle parameter and the immediate less periodic quantity of service period parameter.
Wherein, a kind of execution mode that obtains this service feature parameter is: the Node B of evolution is obtained this traffic performance parameter from core net.
Specifically, user equipment start service triggers core net by the NAS non-access layer information and sets up request message for the Node B transmission of evolution, and this is set up request message and comprises this traffic performance parameter.
Another execution mode that obtains this service feature parameter is: the Node B of evolution is obtained this traffic performance parameter from subscriber equipment.
Concrete scheme can be: user equipment start service, triggering core net by the NAS non-access layer information sets up request message for the Node B transmission of evolution, after the Node B of evolution is received and is set up request message, send RRC reprovision request message to subscriber equipment, subscriber equipment starts new configuration, finish message to the Node B transmission reprovision of evolution subsequently, wherein, this reprovision is finished and is comprised this traffic performance parameter in the message.
The invention still further relates to a kind of LTE mobile communication system, comprise core net, as the Node B and the subscriber equipment of the evolution of Access Network, subscriber equipment is set up RRC with the Node B of evolution and is connected.The Node B of described evolution comprises mapping block, the Node B of described evolution is used for obtaining the traffic performance parameter when user equipment start service, described mapping block is used for setting up the mapping relations of traffic performance parameter and discontinuous reception parameters configuration, the discontinuous reception parameters that the Node B of described evolution also is used for being determined by mapping relations connects the reprovision process by RRC and disposes to subscriber equipment, disposes the media access control layer to MAC by the internal configurations process.
The present invention relates to a kind of eNB of the LTE of being used for mobile communication system simultaneously.
The present invention's beneficial effect compared with prior art is: 1) discontinuous reception parameters collocation method of the present invention, with the traffic performance parameter of UE initiation and the parameter configuration of DRX, mainly be that the cycle configuration combines, the more rational DRX cycle parameter of relationship maps, and dispose the scheduling of doing discontinuous reception for UE and eNB, thereby the electricity-saving function of maximum performance DRX; 2) discontinuous reception parameters collocation method of the present invention, set up the mapping relations between the parameter configuration of traffic performance and DRX, solved traffic performance and the unmatched problem of DRX parameter configuration in traditional LTE mobile communication system, interface-free resources is fully used, and improves the throughput of system.
Description of drawings
Fig. 1 is the network architecture schematic diagram of LTE mobile communication system;
Fig. 2 is the schematic diagram of DRX in the LTE mobile communication system;
Fig. 3 is the flow chart that obtains traffic performance parameter execution mode in the DRX method for parameter configuration of the present invention from core net;
Fig. 4 is the flow chart that obtains traffic performance parameter execution mode in the DRX method for parameter configuration of the present invention from subscriber equipment.
Embodiment
In conjunction with the accompanying drawings the present invention is described in further detail below by embodiment.
Please refer again to Fig. 1, the present invention is specifically related to a kind of LTE mobile communication system, and the present invention relates to a kind of eNB of the LTE of being used for mobile communication system and relevant DRX method for parameter configuration simultaneously.
Divide from the S1 connection interface between eNB and Mobility Management Entity MME/ gateway S-GW, described LTE mobile communication system comprises core net, as the eNB and the user equipment (UE) of Access Network.User equipment (UE) is set up RRC with eNB and is connected.Connect by NAS between user equipment (UE) and the core net.In the present embodiment, this eNB comprises mapping block, this eNB is used for obtaining the traffic performance parameter when user equipment (UE) is initiated business, this mapping block is used for setting up the mapping relations of traffic performance parameter and discontinuous reception DRX parameter configuration, in the present embodiment, mainly be the mapping relations of setting up between service feature parameter and the DRX cycle parameter.This eNB also is used for the DRX parameter configuration of mapping is disposed to user equipment (UE) by RRC connection reprovision process, disposes the scheduling of carrying out discontinuous reception to the MAC media access control layer by the internal configurations process.
Among the present invention, this discontinuous reception parameters is meant the discontinuous receiving cycle parameter, and this traffic performance parameter is meant the service period parameter, and these mapping relations are meant selection of discontinuous receiving cycle parameter and the immediate less periodic quantity of service period parameter.
Below concrete mapping relations for example.
The selective value of having stipulated the DRX cycle parameter in 36.331 agreements of relevant DRX is respectively (calculating with millisecond): 1,2,3,4,6,8,10,20,30,40,50,60,80,100,200.Professional VOIP is an example with periodic speech, and its data packets for transmission cycle selective value is: 10,20,30.But by the less periodic quantity of this mapping relations selection with the immediate discontinuous receiving cycle parameter of service period parameter selective value.Such as, the packet cycle of periodic speech business is 20 milliseconds, then the discontinuous receiving cycle parameter is according to 20 milliseconds of mapping relations corresponding selection.And for example, the packet cycle of periodic speech business is 10 milliseconds, and then the discontinuous receiving cycle parameter is according to 10 milliseconds of mapping relations corresponding selection.For another example, the packet cycle of periodic speech business is 15 milliseconds, and then the discontinuous receiving cycle parameter is according to 10 milliseconds of mapping relations corresponding selection.Other business such as monitoring business or game service in like manner.
In the present embodiment, this eNB can obtain this traffic performance parameter from core net or subscriber equipment.Specifically referring to the introduction of subsequent parameter collocation method.
The DRX method for parameter configuration that the present invention relates to specifically may further comprise the steps:
User equipment (UE) is set up RRC with eNB and is connected;
User equipment (UE) and core net connect (NAS protocol layer);
User equipment (UE) is initiated professional, and eNB obtains the traffic performance parameter from core net or user equipment (UE), sets up the mapping relations of traffic performance parameter and discontinuous reception parameters configuration;
ENB will connect the reprovision process by RRC according to the discontinuous reception parameters of traffic performance parameter maps and dispose to user equipment (UE), dispose the scheduling of carrying out discontinuous reception to the MAC media access control layer by the internal configurations process.
Further, this DRX and traffic performance parameter are carried out associated configuration and reprovision, and eNB sets up response message to core net transmission business after receiving that the RRC reprovision of user equipment (UE) is finished message.
Below introducing eNB in detail obtains the traffic performance parameter, sets up the detailed process of DRX cycle parameter maps and DRX parameter reprovision from core net or user equipment (UE) respectively.
Please refer to Fig. 3, shown in Figure 3 is the flow chart that obtains traffic performance parameter execution mode from core net.This flow process may further comprise the steps:
Step S301, UE set up RRC with the node eNB of Access Network and are connected, and UE enters the RRC_CONNECTED connection status;
Step S302, UE and core net connect by the NAS protocol layer;
Step S303, UE initiate professional, and such as ip voice business or downloading service, the ip voice business has periodically, and downloading service has rapidity.UE triggers core net by the NAS non-access layer information;
Step S304, core net is set up request message to eNB transmission business, and this business is set up and is carried in the request message and the relevant traffic performance parameter of DRX cycle configuration;
Step S305, eNB receive that business sets up request message, and the business of obtaining is set up the traffic performance parameter that comprises in the request message, by the mapping relations between traffic performance parameter and the DRX cycle parameter, determines the cycle parameter of DRX;
Step S307, eNB gives the MAC media access control layer by the internal configurations process with the DRX cycle parameter configuration;
Step S306, eNB connect the reprovision process by RRC and give UE with the DRX cycle parameter configuration;
Concrete steps are: eNB sends RRC reprovision request message to UE, and UE receives the reprovision request message, starts new configuration, and this new configuration comprises the cycle parameter that DRX draws by mapping relations.Then, UE sends the RRC reprovision to eNB and finishes message.ENB receives that reprovision finishes message, sets up response message to core net transmission business.
Please refer to Fig. 4, shown in Figure 4 is the flow chart that obtains traffic performance parameter execution mode from user equipment (UE).This flow process may further comprise the steps:
Step S401, UE set up RRC with the node eNB of Access Network and are connected, and UE enters the RRC_CONNECTED connection status;
Step S402, UE and core net connect by the NAS protocol layer;
Step S403, UE initiate professional, and such as ip voice business or downloading service, the ip voice business has periodically, and downloading service has rapidity.UE triggers core net by the NAS non-access layer information;
Step S404, core net is set up request message to eNB transmission business;
Step S405, eNB receive that business sets up request message, and internal configurations MAC media access control layer sends RRC reprovision request message to UE simultaneously, and sets up dedicated bearer;
Step S406, UE receive RRC reprovision request message, start new configuration, and UE will finish message by the RRC reprovision with DRX cycle configuration parameter related service characterisitic parameter and send to eNB;
Step S407, eNB receive that the RRC reprovision finishes message, obtain the traffic performance parameter that it carries, and by the mapping relations between traffic performance parameter and the DRX cycle parameter, determine the DRX cycle parameter;
Step S409, eNB gives the MAC media access control layer by the internal configurations process with rational DRX cycle parameter configuration;
Step S408, eNB gives UE by the DRX cycle parameter configuration that RRC connection reprovision process will newly be determined;
Concrete steps are: eNB sends RRC reprovision request message to UE, and UE receives the reprovision request message, starts new configuration, and this new configuration comprises the cycle parameter that DRX draws by mapping relations.Then, UE sends the RRC reprovision to eNB and finishes message.ENB receives that reprovision finishes message, sets up response message to core net transmission business.
Above content be in conjunction with concrete execution mode to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. discontinuous reception parameters collocation method specifically may further comprise the steps:
User equipment start service, the Node B of evolution is obtained the traffic performance parameter, sets up the mapping relations of described traffic performance parameter and discontinuous reception parameters configuration;
To connect the reprovision process by RRC by the discontinuous reception parameters that mapping relations are determined and dispose, dispose media access control layer to MAC by the internal configurations process to subscriber equipment.
2. discontinuous reception parameters collocation method according to claim 1, its characteristic is: described discontinuous reception parameters is meant the discontinuous receiving cycle parameter, described traffic performance parameter is meant the service period parameter, and described mapping relations are meant selection of discontinuous receiving cycle parameter and the immediate less periodic quantity of service period parameter.
3. discontinuous receiving cycle collocation method according to claim 1 and 2, its characteristic is: the Node B of described evolution is obtained described traffic performance parameter from core net.
4. discontinuous reception parameters collocation method according to claim 3, its characteristic is: described user equipment start service, trigger core net by the NAS non-access layer information and set up request message for the Node B transmission of evolution, the described request message of setting up comprises described traffic performance parameter.
5. discontinuous reception parameters collocation method according to claim 1 and 2, its characteristic is: the Node B of described evolution is obtained described traffic performance parameter from subscriber equipment.
6. discontinuous reception parameters collocation method according to claim 5, its characteristic is: user equipment start service, triggering core net by the NAS non-access layer information sets up request message for the Node B transmission of evolution, after the Node B of evolution is received and is set up request message, send RRC to subscriber equipment and connect the reprovision request, subscriber equipment starts new configuration, finishes message to the Node B transmission reprovision of evolution subsequently, wherein, described reprovision is finished and is comprised described traffic performance parameter in the message.
7. LTE mobile communication system, comprise core net, Node B and subscriber equipment as the evolution of Access Network, subscriber equipment is set up RRC with the Node B of evolution and is connected, its characteristic is: the Node B of described evolution comprises mapping block, the Node B of described evolution is used for obtaining the traffic performance parameter when user equipment start service, described mapping block is used for setting up the mapping relations of traffic performance parameter and discontinuous reception parameters configuration, the discontinuous reception parameters that the Node B of described evolution also is used for being determined by mapping relations connects the reprovision process by RRC and disposes to subscriber equipment, disposes the media access control layer to MAC by the internal configurations process.
8. LTE mobile communication system according to claim 6, its characteristic is: described discontinuous reception parameters is meant the discontinuous receiving cycle parameter, described traffic performance parameter is meant the service period parameter, and described mapping relations are meant selection of discontinuous receiving cycle parameter and the immediate less periodic quantity of service period parameter.
9. Node B that realizes the evolution of discontinuous reception parameters configuration, its characteristic is: the Node B of described evolution comprises mapping block, the Node B of described evolution is used for obtaining the traffic performance parameter when user equipment start service, described mapping block is used for setting up the mapping relations of traffic performance parameter and discontinuous reception parameters configuration, the discontinuous reception parameters that the Node B of described evolution also is used for being determined by mapping relations connects the reprovision process by RRC and disposes to subscriber equipment, disposes the media access control layer to MAC by the internal configurations process.
10. the Node B of the evolution of realization discontinuous reception parameters configuration according to claim 9, its characteristic is: described discontinuous reception parameters is meant the discontinuous receiving cycle parameter, described traffic performance parameter is meant the service period parameter, and described mapping relations are meant selection of discontinuous receiving cycle parameter and the immediate less periodic quantity of service period parameter.
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| CN2009101900143A CN102014441A (en) | 2009-09-08 | 2009-09-08 | DRX (Discontinuous Reception) parameter configuration method and system |
| PCT/CN2010/073996 WO2011029324A1 (en) | 2009-09-08 | 2010-06-17 | Method and system for configuring discontinuous reception parameters |
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