CN103546906B - Discontinuous receiving cycle length regulating method and its system - Google Patents
Discontinuous receiving cycle length regulating method and its system Download PDFInfo
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- CN103546906B CN103546906B CN201210236330.1A CN201210236330A CN103546906B CN 103546906 B CN103546906 B CN 103546906B CN 201210236330 A CN201210236330 A CN 201210236330A CN 103546906 B CN103546906 B CN 103546906B
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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
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Abstract
The present invention discloses a kind of discontinuous receiving cycle length regulating method and its system.Wherein in discontinuous receiving cycle length regulating method, user terminal in RRC idle conditions sends random access request to base station, base station sends accidental access response to user terminal, and count the user terminal number N_rach that random access request is sent in predetermined time interval, user terminal is set up RRC and is connected according to accidental access response and base station, and current state is revised as RRC connection status, user terminal number N _ con in RRC connection status in the statistics predetermined time interval of base station, and the discontinuous receiving cycle length of user terminal is adjusted according to N_rach and N_con.Signaling consumption due to N_rach and N_con respectively to PUCCH and PRACH channels is characterized, therefore the present invention can be from the signaling consumption of motion tracking PUCCH and PRACH channel, so as to while not influenceing final energy to consume saving, the growth of active balance signaling consumption, lifting system resource utilization.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of discontinuous receiving cycle length regulating method and its system.
Background technology
The large-scale development of mobile service and mobile subscriber brings data traffic explosive growth, while also having triggered nothing
Line signaling is substantially improved.Smart mobile phone and mobile Internet application it is widely available, further increase signaling consumption
Burden, causes the imbalance that wireless signaling increases with data traffic, and this " signaling storm " problem may result in system money
The potential network bottleneck such as source is limited, reduces network utilization.LTE（Long Term Evolution, Long Term Evolution）System exists
The aspects such as handling capacity have very big lifting, but current LTE released versions are not carried out in terms of " signaling storm " problem of reply yet
Effectively consider, even if therefore can also be faced with " signaling storm " phenomenon in the LTE stages.In order to alleviate this problem, it is necessary to from nothing
The angle that line is eated dishes without rice or wine is set out, the related optimization enhancing technology of research LTE wireless signalings, to reduce " signaling storm " to mobile network
The adverse effect brought, lifts network resource utilization.
LTE system defines RRC（Radio Resource Control, wireless heterogeneous networks）State includes idle condition
（RRC_IDLE）And connection status（RRC_CONNECTED）Two kinds.Work as UE（User Equipment, user equipment）There are data to receive
RRC connection request is initiated to enter RRC_CONNECTED states to base station during hair, and is then transferred to after the transmitting-receiving of a period of time no data
RRC_IDLE states.In order to allow terminal to save energy when no data is received and dispatched and avoid the frequent transitions of RRC state, LTE systems
System introduces connected state discontinuous reception mechanism（Active DRX, active discontinuous reception）, use
Operationally the phase is divided into three parts to the terminal of Active DRX mechanisms, that is, deactivate current（Inactivity period）、
Short DRX cycle（Short DRX cycle）With DRX cycle long（Long DRX cycle）.When terminal successfully completes packet
After sending or receiving, a packet data inactivity timer is started at once（Inactivity timer）, to show in how many continuous sons
Frame（subframe）In terminal no data transmitting-receiving.If not there is data after packet data inactivity timer time-out yet, UE enters short DRX cycle
Periodicity dormancy is carried out, only in active period（On duration）Open transceiver and monitor PDCCH（Physical Downlink
Control Channel, Physical Downlink Control Channel）Whether data page is had.Still no data is received after several short DRX cycles
Hair, then carry out periodicity dormancy into DRX cycle long.Still no data transmitting-receiving after several DRX cycles long terminate, then UE can enter
Enter RRC_IDLE states, to discharge interface-free resources.The parameter of DRX mechanism include packet data inactivity timer, short/long DRX cycle length,
Short/long DRX cycle timer etc..
The parameter adjustment of Active DRX is one of the study hotspot in LTE fields, has been had at present on to LTE network
The parameter configuration scheme of middle Active DRX mechanisms.But, current DRX methods are mainly considered based on traffic performance, delay performance
Parameter adjustment is carried out with the factor such as energy-saving effect, and the consideration that DRX mechanism influences in terms of signaling consumption is not reported.And
In fact, in the Parameter Configuration process of Active DRX, the influence in terms of existing scheme is present to signaling consumption at present：
（1）If the Active DRX cycle times configure long, for the UE for not sending out data or only sending heartbeat data,
Also long-time is in RRC_CONNECTED states, and in PUCCH（Physical Uplink Control Channel, thing
Reason ascending control channel）The information such as channel quality, scheduling are periodically sent on channel, this will have influence on other frequent number
Use according to the UE of transmitting-receiving demand to PUCCH channel resources, therefore it is unfair to there are problems that channel resource takes；
（2）If the Active DRX cycle times configure too short, many data pack receiving and transmittings UE infrequently can be in Active
RRC_IDLE states are transferred to after DRX times time-out, and cause a large amount of UE in next random access time while initiating Stochastic accessing,
Trigger PRACH（Physical Random Access Channel, Physical Random Access Channel）Channel congestion, causes other to be permitted
The UE for having data transmit-receive demand cannot access the problem of channel more.
It follows that current Active DRX cycles length configuration is unable to active balance signaling consumption, it is impossible to alleviate " letter
Make storm " give Netowrk tape next influence.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of discontinuous receiving cycle length regulating method and its system, leads to
Cross using the user terminal number N_rach of the transmission random access request of interior statistics at preset time intervals and in RRC connections
The user terminal number N of state _ signaling consumptions of the con respectively to PUCCH and PRACH channels is characterized, and based on N_rach
Carry out the discontinuous receiving cycle length that dynamic adjusts UE with N_con.So as to while not influenceing final energy to consume saving, have
Imitate the growth of balance signalling overhead, lifting system resource utilization.
According to an aspect of the present invention, there is provided a kind of discontinuous receiving cycle length regulating method, including：
User terminal in RRC idle conditions sends random access request to base station；
Base station sends accidental access response to the user terminal, and count send in predetermined time interval Stochastic accessing please
The user terminal number N_rach for asking；
The user terminal is set up RRC and is connected according to accidental access response, with base station, and current state is revised as into RRC
Connection status；
User terminal number N _ con in RRC connection status in the statistics predetermined time interval of base station；
Base station according to the N_rach and N_con in predetermined time interval, to the discontinuous receiving cycle of the user terminal
Length TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach, with the increase of N_con
Reduce.
According to another aspect of the present invention, there is provided a kind of discontinuous receiving cycle length adjustment system, including base station and extremely
A few user terminal, wherein：
Base station, for receiving the user terminal UE in RRC idle conditionsIDLEThe random access request of transmission, to described
User terminal UEIDLEAccidental access response is sent, the user terminal of random access request is sent in statistics predetermined time interval
Number N_rach；With the user terminal UEIDLEAfter setting up RRC connections, RRC connection status is in statistics predetermined time interval
User terminal number N _ con；According to N_rach and N_con in predetermined time interval, to the user terminal UEIDLEIt is non-
It is continuous to receive Cycle Length TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach, with N_
The increase of con and reduce；
The user terminal UEIDLE, for sending random access request to base station, the Stochastic accessing sent according to base station rings
RRC should be set up with base station to be connected, and current state is revised as RRC connection status.
The user terminal number N_rach of random access request is sent in predetermined time interval by counting, and counts predetermined
User terminal number N _ con in RRC connection status in time interval, the discontinuous receiving cycle to the user terminal is long
Degree TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach, subtract with the increase of N_con
It is small.Signaling consumption due to N_rach and N_con respectively to PUCCH and PRACH channels is characterized, therefore, it is possible to from motion tracking
The signaling consumption of PUCCH and PRACH channels.So as to while not influenceing final energy to consume saving, active balance signaling is opened
The growth of pin, lifting system resource utilization.
Brief description of the drawings
Fig. 1 is the schematic diagram of discontinuous receiving cycle length regulating method one embodiment of the present invention.
Fig. 2 is the schematic diagram of another embodiment of discontinuous receiving cycle length regulating method of the present invention.
Fig. 3 is the schematic diagram of discontinuous receiving cycle length adjustment system one embodiment of the present invention.
Specific embodiment
The present invention is described more fully with reference to the accompanying drawings, wherein illustrating exemplary embodiment of the invention.
Fig. 1 is the schematic diagram of discontinuous receiving cycle length regulating method one embodiment of the present invention.As shown in figure 1, this
The method of adjustment step of embodiment is as follows：
Step 101, the user terminal in RRC idle conditions sends Stochastic accessing to base station（Preamble）Request.
Step 102, base station sends accidental access response to the user terminal（Random Access Response, letter
Claim：RAR）, and count the user terminal number N_rach that random access request is sent in predetermined time interval.
Step 103, the user terminal is set up RRC and is connected according to accidental access response, with base station, and current state is repaiied
It is changed to RRC connection status.
Step 104, the user terminal number N _ con in RRC connection status in the statistics predetermined time interval of base station.
Step 105, base station according to the N_rach and N_con in predetermined time interval, to the discontinuous of the user terminal
Receive Cycle Length TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach, with N_con
Increase and reduce.
Based on the discontinuous receiving cycle length regulating method that the above embodiment of the present invention is provided, by counting the scheduled time
The user terminal number N_rach of random access request is sent in interval, and counts the interior RRC that is in of predetermined time interval and connect shape
User terminal number N _ the con of state, to the discontinuous receiving cycle length T of the user terminalL_cycleIt is adjusted, wherein week
Phase length TL_cycleIncrease with the increase of N_rach, reduce with the increase of N_con.Due to N_rach and N_con points
The other signaling consumption to PUCCH and PRACH channels is characterized, therefore, it is possible to from the signaling of motion tracking PUCCH and PRACH channel
Expense.So as to while not influenceing final energy to consume saving, the growth of active balance signaling consumption, lifting system resource is sharp
With rate.
Preferably, in above-mentioned steps 105, base station utilizes
TL_cycle=Tmin+f*(Tmax-Tmin)
To the discontinuous receiving cycle length T of the user terminalL_cycleIt is adjusted, wherein TminAnd TmaxIt is respectively pre-
If TL_cycleLower and upper limit, Ncon_maxFor base station allows the maximum user terminal number in RRC connection status, Nrach_max
For base station allows to initiate the maximum user terminal number of Stochastic accessing simultaneously.
Fig. 2 is the schematic diagram of another embodiment of discontinuous receiving cycle length regulating method of the present invention.Implement with shown in Fig. 1
Example is compared, in the embodiment depicted in figure 2, with step 201-205 replacement steps 103.Wherein：
Step 101, the user terminal in RRC idle conditions sends random access request to base station.
Step 102, base station sends accidental access response to the user terminal, and count send in predetermined time interval with
The user terminal number N_rach of machine access request.
Step 201, the user terminal sends to base station and builds RRC connection request according to accidental access response.
Step 202, base station sends contention resolution message to the user terminal, and wherein contention resolution message includes described
Whether the RRC connections of user terminal successfully indicate message.
Step 203, the user terminal is identified to performing message, if indicating message to indicate RRC connection failures, holds
Row step 204, otherwise performs step 205.
Step 204, the user terminal sends random access request to base station again.Afterwards, the present embodiment is no longer performed
Other steps.
Step 205, the user terminal is set up RRC and is connected with base station, and current state is revised as into RRC connection status.
Step 104, the user terminal number N _ con in RRC connection status in the statistics predetermined time interval of base station.
Step 105, base station according to the N_rach and N_con in predetermined time interval, to the discontinuous of the user terminal
Receive Cycle Length TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach, with N_con
Increase and reduce.
Fig. 3 is the schematic diagram of discontinuous receiving cycle length adjustment system one embodiment of the present invention.As shown in figure 3, being
System includes the user terminal of base station 301 and at least one.Wherein：
Base station 301, for receiving the user terminal UE in RRC idle conditionsIDLE302（For convenience of description, in Fig. 3
In, user terminal UEIDLE302 represent the user terminal in RRC idle conditions, and user terminal 303 to be represented and connect shape in RRC
The user terminal of state）The random access request of transmission, to the user terminal UEIDLE302 send accidental access response, and statistics is pre-
Fix time the interior user terminal number N_rach for sending random access request in interval；With the user terminal UEIDLE302 set up
After RRC connections, the user terminal number N _ con in RRC connection status in statistics predetermined time interval；According between the scheduled time
Every interior N_rach and N_con, to the user terminal UEIDLE302 discontinuous receiving cycle length TL_cycleIt is adjusted,
Wherein Cycle Length TL_cycleIncrease with the increase of N_rach, reduce with the increase of N_con；
The user terminal UEIDLE302, for sending random access request to base station, connect at random according to what base station sent
Enter response to set up RRC with base station and be connected, and current state is revised as RRC connection status.
Based on the discontinuous receiving cycle length adjustment system that the above embodiment of the present invention is provided, by counting the scheduled time
The user terminal number N_rach of random access request is sent in interval, and counts the interior RRC that is in of predetermined time interval and connect shape
User terminal number N _ the con of state, to the discontinuous receiving cycle length T of the user terminalL_cycleIt is adjusted, wherein week
Phase length TL_cycleIncrease with the increase of N_rach, reduce with the increase of N_con.Due to N_rach and N_con points
The other signaling consumption to PUCCH and PRACH channels is characterized, therefore, it is possible to from the signaling of motion tracking PUCCH and PRACH channel
Expense.So as to while not influenceing final energy to consume saving, the growth of active balance signaling consumption, lifting system resource is sharp
With rate.
Preferably, base station 301 is available
TL_cycle=Tmin+f*(Tmax-Tmin)
To the user terminal UEIDLE302 discontinuous receiving cycle length TL_cycleIt is adjusted, wherein TminAnd Tmax
Respectively default TL_cycleLower and upper limit, Ncon_maxFor base station allows the maximum user terminal number in RRC connection status
Mesh, Nrach_maxFor base station allows to initiate the maximum user terminal number of Stochastic accessing simultaneously.
Preferably, user terminal UEIDLE302, with specific reference to accidental access response, send to base station 301 and set up RRC connections
Request；The contention resolution message that base station 301 sends is received, wherein contention resolution message includes the user terminal UEIDLE302
RRC connection whether successfully indicate message, if indicate message instruction RRC successful connections, set up RRC with base station 301 and be connected,
And current state is revised as RRC connection status.
Base station 301 is additionally operable to receiving the user terminal UEIDLE302 send set up RRC connection request after, to institute
State user terminal UEIDLE302 send contention resolution messages, and indicate message indicate RRC successful connections when with user's end
End UEIDLE302 set up RRC connections.
Preferably, the user terminal UEIDLE302 are additionally operable to when indicating message to indicate RRC connection failures, again to base
Stand 301 send random access requests.
Present invention advantage compared with prior art is：May band letter for traditional Active DRX parameter regulation means
The defect for making expense increase, Active is optimized by from motion tracking UE to the signaling consumption of PUCCH channels and PRACH channels
DRX cycle length, while handset power-saving is not influenceed, the active balance expense of signaling improves the resource of network
Utilization rate, particularly enhances the Consumer's Experience existed under a large amount of low frequencies time low discharge terminal scene.Meanwhile, present invention employs
Simple parameter is characterized to PUCCH and PRACH channel signaling expenses, is easy to the optimization and transmission of parameter between base station and UE
Scheme is implemented, and does not increase overhead, therefore be easy to specific implementation.
Description of the invention is given for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are for the ordinary skill in the art obvious.Select and retouch
State embodiment and be to more preferably illustrate principle of the invention and practical application, and one of ordinary skill in the art is managed
The solution present invention is suitable to the various embodiments with various modifications of special-purpose so as to design.
Claims (6)
1. a kind of discontinuous receiving cycle length regulating method, it is characterised in that including：
User terminal in radio resource control RRC idle condition sends random access request to base station；
Base station sends accidental access response to the user terminal, and counts transmission random access request in predetermined time interval
User terminal number N_rach；
The user terminal is set up RRC and is connected according to accidental access response, with base station, and current state is revised as into RRC connections
State；
User terminal number N _ con in RRC connection status in the statistics predetermined time interval of base station；
Base station according to the N_rach and N_con in predetermined time interval, to the discontinuous receiving cycle length of the user terminal
TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach, reduce with the increase of N_con；
Wherein, base station is according to the N_rach and N_con in predetermined time interval, to the discontinuous receiving cycle of the user terminal
Length TL_cycleThe step of being adjusted includes：
Base station utilizes
TL_cycle=Tmin+f*(Tmax-Tmin)
To the discontinuous receiving cycle length T of the user terminalL_cycleIt is adjusted, wherein TminAnd TmaxIt is respectively default
TL_cycleLower and upper limit, Ncon_maxFor base station allows the maximum user terminal number in RRC connection status, Nrach_maxIt is base
Standing allows the maximum user terminal number for initiating Stochastic accessing simultaneously.
2. method according to claim 1, it is characterised in that
The user terminal is set up RRC and is connected according to accidental access response, with base station, and current state is revised as into RRC connections
The step of state, includes：
The user terminal sends to base station and sets up RRC connection request according to accidental access response；
Base station sends contention resolution message to the user terminal, and wherein contention resolution message includes the user terminal
Whether RRC connections successfully indicate message；
If indicating message to indicate RRC successful connections, the user terminal is set up RRC and is connected with base station, and current state is changed
It is RRC connection status.
3. method according to claim 2, it is characterised in that
If indicating message to indicate RRC connection failures, the user terminal sends random access request to base station again.
4. a kind of discontinuous receiving cycle length adjustment system, it is characterised in that including base station and at least one user terminal, its
In：
Base station, for receiving the user terminal UE in radio resource control RRC idle conditionIDLEThe random access request of transmission,
To the user terminal UEIDLEAccidental access response is sent, the user of random access request is sent in statistics predetermined time interval
Terminal number N_rach；With the user terminal UEIDLEAfter setting up RRC connections, connect in RRC in statistics predetermined time interval
Meet the user terminal number N _ con of state；According to N_rach and N_con in predetermined time interval, to the user terminal
UEIDLEDiscontinuous receiving cycle length TL_cycleIt is adjusted, wherein Cycle Length TL_cycleIncrease with the increase of N_rach
Greatly, reduce with the increase of N_con；
The user terminal UEIDLE, for base station send random access request, according to base station send accidental access response with
RRC connections are set up in base station, and current state is revised as into RRC connection status；
Wherein, base station specifically utilizes
TL_cycle=Tmin+f*(Tmax-Tmin)
To the user terminal UEIDLEDiscontinuous receiving cycle length TL_cycleIt is adjusted, wherein TminAnd TmaxIt is respectively pre-
If TL_cycleLower and upper limit, Ncon_maxFor base station allows the maximum user terminal number in RRC connection status, Nrach_max
For base station allows to initiate the maximum user terminal number of Stochastic accessing simultaneously.
5. system according to claim 4, it is characterised in that
The user terminal UEIDLEWith specific reference to accidental access response, sent to base station and set up RRC connection request；Receive base station hair
The contention resolution message sent, wherein contention resolution message include the user terminal UEIDLERRC connection whether successfully finger
Show message, if indicating message to indicate RRC successful connections, set up RRC with base station and be connected, and current state is revised as RRC and connect
Connect state；
Base station is additionally operable to receiving the user terminal UEIDLESend set up RRC connection request after, to the user terminal
UEIDLESend contention resolution message, and indicate message indicate RRC successful connections when with the user terminal UEIDLESet up RRC
Connection.
6. system according to claim 5, it is characterised in that
The user terminal UEIDLEIt is additionally operable to, when indicating message to indicate RRC connection failures, send Stochastic accessing to base station again
Request.
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| CN104767595A (en) * | 2014-01-07 | 2015-07-08 | 中兴通讯股份有限公司 | HARQ-ACK (Hybrid Automatic Repeated Request Acknowledge) feedback information transmission method, system, terminal and base station |
| CN107079368A (en) * | 2014-05-16 | 2017-08-18 | 联发科技（新加坡）私人有限公司 | The enhancing mechanism of connection of mobile terminal into network |
| CN111510954B (en) * | 2016-02-05 | 2021-12-31 | 中兴通讯股份有限公司 | Method and device for determining scheduling timing interval |
| CN107295563B (en) * | 2016-04-05 | 2020-06-05 | 大唐移动通信设备有限公司 | Cell service processing method and device |
| JP7042793B2 (en) | 2016-07-20 | 2022-03-28 | 日本電気株式会社 | Methods in wireless communication systems |
| CN108347785B (en) * | 2017-01-25 | 2021-06-04 | 展讯通信（上海）有限公司 | Resource request method and device for user equipment |
| EP3886522A4 (en) * | 2018-12-12 | 2021-12-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Random access method, terminal device, and access network device |
| CN110493855B (en) * | 2019-08-07 | 2023-01-13 | 深圳市锐尔觅移动通信有限公司 | Communication mode control method, device, storage medium and terminal |
| CN115968018B (en) * | 2022-12-09 | 2023-10-27 | 深圳市领创星通科技有限公司 | Terminal power saving method, terminal equipment and storage medium |
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