CN101707796A - Power saving method for mobile communication terminal in idle mode - Google Patents
Power saving method for mobile communication terminal in idle mode Download PDFInfo
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- CN101707796A CN101707796A CN200910104223A CN200910104223A CN101707796A CN 101707796 A CN101707796 A CN 101707796A CN 200910104223 A CN200910104223 A CN 200910104223A CN 200910104223 A CN200910104223 A CN 200910104223A CN 101707796 A CN101707796 A CN 101707796A
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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 power saving method for a mobile communication terminal in an idle mode. After the successful selection of a UE cell, an MCU sends each parameter related to paging detection to a DSP before the MCU enters a sleep state for the first time; and in the following detection of PICH in each DRX period, the reading of PCH and the matching of UE-ID are both finished automatically by the DSP. When the DSP detects the paging of local UE, the MCU is awakened to process. The method of the invention can effectively reduce alternation times between the MCU and the DSP and can reduce the awakening times of the MCU so as to fulfill the aim of saving power.
Description
Technical field
(be called for short, UE) technology specially refers to the electricity saving method of a kind of mobile communication terminal under idle pulley to have the present invention relates to mobile communication terminal.
Background technology
In mobile communication system,, UE is divided for idle pulley and connection mode according to whether having the Radio Resource control connection.Thus, each functional module of UE can be in three kinds of operating states: normal operating conditions, idle condition, sleep state.Normal operating conditions is meant that this module place is carrying out normal Business Processing; Idle condition is meant that this module is current does not have a Business Processing, is in the free time; Sleep state is meant that this module is in low-power consumption or closed condition, sleep state is divided into deep sleep state and sleeping state again, deep sleep is meant that the power supply of module and clock all are in closed condition, shallow sleep is meant that this module only closes nuclear clock in self, powered-down not, this moment, this module was in low power consumpting state.
Switching between three kinds of operating states is as shown in Figure 1:
Under normal mode of operation:, then enter idle pulley if task is finished;
Under idle pulley:, then enter sleep pattern if receive the sleep indication; If professional the generation arranged, then returns normal mode of operation.
Under sleep pattern: if finish the length of one's sleep, wake up naturally, then enter idle pulley; If professional the generation arranged, then returns normal mode of operation.
UE generally has microcontroller simultaneously (to be called for short, MCU) and digital signal processor (abbreviation, DSP) two kinds of chips.Wherein MCU chip controls ability is more intense, is mainly used in operation application layer and protocol stack.The Digital Signal Processing function of dsp chip is very powerful, is mainly used in functions such as the modulation of finishing bottom and speech processes.Protocol stack operates among the MCU, and physical layer operates among the DSP.The shared drive that can both visit by both sides of communicating by letter between MCU and the DSP is realized, no matter is that MCU or DSP can come this piece shared drive is carried out reading and writing by bus.
UE has a very important task under idle pulley: promptly each paging cycle (is called for short, DRX) all must (be called for short by the monitor for pages indicating channel, PICH), determine whether that according to the indication of PICH the paging block that needs go to receive on the corresponding paging channel (is called for short, PCH) again.
The quality of a terminal system power saving performance depends on whether to allow MCU and DSP be in sleep state as much as possible to a great extent, is in dormant MCU and DSP power consumption is considerably less; And MCU under normal operating conditions and the idle condition and DSP since its power supply and clock all in normal work, its power consumption will significantly increase.
In existing terminal system, the technical scheme that the page response under the idle pulley usually adopts as shown in Figure 2:
1, UE cell selecting success, MCU is local to be preserved terminal equipment and number (is called for short, UE_ID), and calculates the positional information that next DRX cycle PICH occurs, deliver to DSP with under it;
2, UE enters idle pulley, and MCU controls DSP and self enters sleep state, and hardware circuit begins hardware regularly;
3, each DRX cycle at first, hardware circuit withdraws from regularly, sends hardware interrupts and at first wakes MCU up, MCU wakes DSP up then, DSP receives PICH in appointed positions, and the result that PICH is resolved reports to MCU.
4, receive the indication of PICH analysis result as MCU, will determine whether needs receive the PCH piece according to the content of indication.Receive if desired, then MCU indication DSP receives the PCH piece in appointed positions, and the computational methods of PCH position are referring to agreement 3GPP 25.304; Otherwise execution in step 7.
5, DSP receives the PCH piece at assigned address, then it is reported to MCU.MCU decodes to the beep-page message that it carries, and decoded UE_ID is mated---judge whether the UE_ID that this paging carries is the same with the UE_ID of terminal itself; If the match is successful, then carry out next step; Otherwise, execution in step 7.
6, UE initiates access procedure, sets up the Radio Resource control connection, jumps out idle pulley and shifts to connection mode, the task termination under the idle pulley;
7, this DRX cycle task is finished, and MCU disposes the positional information of next cycle PICH to DSP, and MCU control DSP and oneself enter sleep state once more waits for the arrival of next DRX cycle then.
This shows,, have following problem according to traditional design:
One, mutual frequent between MCU and the DSP can cause the read-write of shared drive frequent and bus is busy, wasted resource greatly;
Two, at each DRX cycle, MCU and DSP can withdraw from sleep state, and the frequent operation of the frequent operation, particularly MCU of such two chip blocks can increase the power consumption of UE greatly.And if PICH indication PCH piece does not exist, though perhaps the PCH piece exists UE_ID not match, then to enter wake-up states be exactly insignificant energy consumption to this time MCU.Simultaneously, must operate internal memory after MCU wakes up, the meaningless operation of internal memory also can cause the waste of the energy.
Summary of the invention
For overcoming the above-mentioned deficiency of prior art, the present invention proposes the method for a kind of mobile subscriber terminal power saving under idle pulley, at the reception of paging under the idle pulley, the function of MCU and DSP is redistributed.
Technical scheme of the present invention is:
1, after the success of UE cell selecting, MCU sends to DSP with the relevant parameter that paging detects;
2, UE enters idle pulley, and DSP draws oneself up and MCU enters sleep state;
3, DSP receives PICH, and indication determines whether that needs receive PCH and calculate the PCH position according to PICH.
4, DSP receives PCH at assigned address, carries out the UE_ID coupling, is this UE paging as matching result, then wake MCU up and handle, otherwise DSP calculates next PICH position, enters sleep state once more, waits for that next PICH arrives.
The relevant parameter that described paging detects further comprises: the sign of PICH position, paging cycle, measurement frequency points, PCH frame number, UE_ID;
Described MCU enters sleep state and further comprises: have external equipment using when entering sleep state as MCU, then MCU enters sleeping state; Otherwise MCU enters the deep sleep state.
Described DSP calculates next PICH position and further comprises:
Next PICH position=current PICH position+DRX cycle length;
Preferably, after described calculating PCH finished the position, whether DSP judged current time distance P CH position greater than default thresholding, and then DSP enters sleep state in this way, otherwise DSP directly waits for reception PCH;
Wherein, described default thresholding unit is the TD-SCDMA wireless sub-frame, and span is the integer greater than 7.
Employing the inventive method has the following advantages: the first, the testing process of whole paging is all finished by DSP, has reduced mutual between MCU and the DSP, thus the anxiety of having avoided the frequent operation of shared drive and having avoided bus resource; The second, because the UE_ID of terminal itself keeps relative fixed, after delivering to DSP below the institute, unless detect the paging of UE itself, usually MCU just needn't be waken up because of the coherent detection of paging, thereby MCU remains on sleep state always, simultaneously, can not cause the meaningless operation of MCU yet, reduce the power consumption of UE internal memory.
Description of drawings
Fig. 1 is the operating state transition diagram of UE
Fig. 2 is the flow chart of page response under the prior art idle pulley
Fig. 3 is page response realization flow figure under the specific embodiment of the invention idle pulley
Fig. 4 is that DSP control enters dormant flow chart under the specific embodiment of the invention idle pulley
Embodiment
For clearly demonstrating technical scheme of the present invention, provide preferred embodiment below and be described with reference to the accompanying drawings.
Specific embodiment
The present embodiment overall procedure is as shown in Figure 3:
1, UE cell selecting success, MCU is disposable with the UE_ID of PICH position, paging cycle, measurement frequency points, PCH frame number, terminal to pass to the DSP preservation down;
2, UE enters idle condition, and DSP controls MCU and self enters sleep state, and hardware circuit begins hardware regularly, and this steps flow chart as shown in Figure 4;
201, MCU judges the external equipment behaviour in service of self, as does not have external equipment using, and then execution in step 202, otherwise execution in step 204;
202, MCU protects current register data;
203, close MCU core power and clock, MCU enters the deep sleep state, execution in step 205;
204, close nuclear clock in the MCU, MCU enters sleeping state;
205, DSP enters sleep state according to PICH set positions length of one's sleep;
3, finish the length of one's sleep, DSP withdraws from sleep state, receives PICH;
4, DSP has judged whether that according to PICH indication the PCH needs receive, if any execution in step 5 then, otherwise execution in step 11;
5, DSP is according to the position of PICH indication calculating PCH appearance;
6, whether the position of DSP judgement current time distance P CH is greater than default thresholding, and in this way, then execution in step 7, otherwise execution in step 9;
Wherein, described default thresholding is a unit with the TD-SCDMA wireless sub-frame, and span is: the integer greater than 7, value is 7 subframes, i.e. 35ms in this specific embodiment.
7, DSP enters sleep state according to PCH set positions length of one's sleep;
8, finish the length of one's sleep, DSP withdraws from sleep state;
9, DSP receives PCH;
10, DSP judges whether this PCH is this UE paging, execution in step 12 then in this way, otherwise execution in step 11;
Wherein, described determination methods is, the UE_ID that carries among the PCH and the UE_ID of this UE are compared, and is this UE paging as identical then this paging, otherwise is not this UE paging;
11, DSP calculates next PICH in-position, returns step 205;
Wherein, the computational methods of next PICH in-position are:
Next PICH position=current PICH position+DRX cycle length;
12, DSP wakes MCU up and handles this paging, and MCU initiates to insert at random, sets up the Radio Resource control connection, shifts to connection mode thereby UE has jumped out idle pulley, and process finishes under the idle pulley;
As from the foregoing, according to way of the present invention,, all independently finish the detection of paging by DSP at each DRX cycle; When only receiving the paging of this UE, MCU just can be waken up, and withdraws from sleep state, otherwise MCU can remain on sleep state always, thereby has saved energy consumption.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (5)
1. the electricity saving method of a portable terminal under idle pulley is characterized in that, may further comprise the steps:
After the success of mobile terminal UE cell selecting, MCU sends to DSP with the relevant parameter that paging detects;
UE enters idle pulley, and DSP draws oneself up and MCU enters sleep state;
DSP paging receiving indication PICH, indication determines whether needs paging receiving piece PCH and calculates the PCH position according to PICH.
DSP receives PCH at assigned address, carries out terminal equipment UE_ID coupling, is this UE paging as matching result, then wake MCU up and handle, otherwise DSP calculates next PICH position, enters sleep state once more, waits for that next PICH arrives.
2. the electricity saving method of a kind of portable terminal according to claim 1 under idle pulley is characterized in that, the relevant parameter that described paging detects comprises: the sign of PICH position, paging cycle, measurement frequency points, PCH frame number, UE_ID;
3. the electricity saving method of a kind of portable terminal according to claim 1 under idle pulley is characterized in that, described MCU enters sleep state and further comprises:
Have external equipment using when entering sleep state as MCU, then MCU enters sleeping state; Otherwise MCU enters the deep sleep state.
4. the electricity saving method of a kind of portable terminal according to claim 1 under idle pulley is characterized in that, described DSP calculates the concrete computational methods in next PICH position and is:
Next PICH position=current PICH position+paging cycle length;
5. the electricity saving method of a kind of portable terminal according to claim 1 under idle pulley, it is characterized in that after described calculating PCH finished the position, DSP judged that whether current time distance P CH position is greater than default thresholding, then DSP enters sleep state in this way, otherwise DSP directly waits for reception PCH;
Wherein, described default thresholding unit is a TD-SC DMA wireless sub-frame, and span is the integer greater than 7.
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| CN200910104223A CN101707796A (en) | 2009-06-30 | 2009-06-30 | Power saving method for mobile communication terminal in idle mode |
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| CN200910104223A CN101707796A (en) | 2009-06-30 | 2009-06-30 | Power saving method for mobile communication terminal in idle mode |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300294A (en) * | 2010-06-11 | 2011-12-28 | 英特尔移动通信技术德累斯顿有限公司 | Method for controlling operation activity modes of a wireless telecommunications terminal |
| CN102523178A (en) * | 2011-12-20 | 2012-06-27 | 华为技术有限公司 | Push-based heartbeat message sending method and terminal |
| CN103200653A (en) * | 2012-01-05 | 2013-07-10 | 华为技术有限公司 | Method and device for discontinuous reception |
| WO2014047901A1 (en) * | 2012-09-28 | 2014-04-03 | France Telecom | Energy saving method for a radio access node |
| WO2016112485A1 (en) * | 2015-01-12 | 2016-07-21 | 华为技术有限公司 | Method for paging user equipment and mobility management entity |
| CN109496452A (en) * | 2018-10-19 | 2019-03-19 | 北京小米移动软件有限公司 | Power save signal monitor method and device |
-
2009
- 2009-06-30 CN CN200910104223A patent/CN101707796A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300294B (en) * | 2010-06-11 | 2015-10-21 | 英特尔移动通信技术德累斯顿有限公司 | For controlling the method for radio communication terminal operant activity pattern |
| CN102300294A (en) * | 2010-06-11 | 2011-12-28 | 英特尔移动通信技术德累斯顿有限公司 | Method for controlling operation activity modes of a wireless telecommunications terminal |
| CN102523178B (en) * | 2011-12-20 | 2014-12-03 | 华为技术有限公司 | Push-based heartbeat message sending method and terminal |
| CN102523178A (en) * | 2011-12-20 | 2012-06-27 | 华为技术有限公司 | Push-based heartbeat message sending method and terminal |
| WO2013102389A1 (en) * | 2012-01-05 | 2013-07-11 | 华为技术有限公司 | Discontinuous reception method and device |
| CN103200653A (en) * | 2012-01-05 | 2013-07-10 | 华为技术有限公司 | Method and device for discontinuous reception |
| WO2014047901A1 (en) * | 2012-09-28 | 2014-04-03 | France Telecom | Energy saving method for a radio access node |
| WO2016112485A1 (en) * | 2015-01-12 | 2016-07-21 | 华为技术有限公司 | Method for paging user equipment and mobility management entity |
| US20170311247A1 (en) | 2015-01-12 | 2017-10-26 | Huawei Technologies Co., Ltd. | User Equipment Paging Method and MME |
| US10499326B2 (en) | 2015-01-12 | 2019-12-03 | Huawei Technologies Co., Ltd. | User equipment paging method and MME |
| CN109496452A (en) * | 2018-10-19 | 2019-03-19 | 北京小米移动软件有限公司 | Power save signal monitor method and device |
| WO2020077622A1 (en) * | 2018-10-19 | 2020-04-23 | 北京小米移动软件有限公司 | Method and device for monitoring power-saving signal |
| CN109496452B (en) * | 2018-10-19 | 2021-08-17 | 北京小米移动软件有限公司 | Power-saving signal monitoring method and device |
| US11937183B2 (en) | 2018-10-19 | 2024-03-19 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and device for monitoring power-saving signal |
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Open date: 20100512 |