CN101686105B - Method for reducing power consumption of terminal - Google Patents
Method for reducing power consumption of terminal Download PDFInfo
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- CN101686105B CN101686105B CN2008102233778A CN200810223377A CN101686105B CN 101686105 B CN101686105 B CN 101686105B CN 2008102233778 A CN2008102233778 A CN 2008102233778A CN 200810223377 A CN200810223377 A CN 200810223377A CN 101686105 B CN101686105 B CN 101686105B
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Abstract
The embodiment of the invention discloses a method for reducing the power consumption of a terminal, which comprises the following steps: in each transmission time interval TTI, determining a fixed period of time; receiving the downlink service data of constant-rate services transmitted by a network side in the fixed period of time in each TTI by the terminal; and not receiving the downlink service data of the constant-rate services in time other than the fixed period of time in each TTI. The method can effectively reduce the power consumption of the terminal when the terminal performs the constant-rate services which are in an activated state.
Description
Technical field
The present invention relates to mobile communication technology, refer in particular to a kind of method that reduces power consumption of terminal.
Background technology
After the technical standard of universal terrestrial radio communication time division duplex (UTRA TDD) evolves to the stage of introducing high-speed packet access (HSPA+) technology; The business of the overwhelming majority; For example the voice of internet protocol-based (VoIP) are professional, web page browsing is professional or video stream traffic etc., all are based on the data field exchange; And the part of interface aloft, above-mentioned these professional carryings and scheduling generally all are to use based on the mode of shared channel to be carried out, thereby can improve the service efficiency and the business throughput of Radio Resource.But, in the resource utilization and professional throughput capacity that improve system side,, thereby cause the power consumption at terminal significantly to increase because end side needs constantly monitoring control signaling.
In actual conditions; The business model of the business (for example, VoIP business, video stream traffic etc.) of a lot of fixed rates all has very clear regularity, for example; In the business of fixed rate; The speed that the information source packet arrives receiving terminal is certain, and owing in the service quality of above-mentioned business delay variation is had higher requirements, even therefore in above-mentioned business, use automatic repeat requests (HARQ) technology of mixing; Also be asked in the regular hour window, be sent out away by the packet that retransmitted, otherwise will think the bust this of this packet.For example; Under state of activation (promptly data packet transmission being arranged all between the both call sides); Packet in the VoIP business will arrive receiving terminal with regular time interval (20ms); And in order to prevent the influence of delay variation to user impression, VoIP business data packet of general provision must be sent out in 40～50ms and finish, otherwise this packet is put up with and abandoned.Insert in (HSDPA) process a common high speed downlink packet, base station (Node) at first will send control signaling to receiving terminal (being the terminal) through high speed descending sharing channel shared control channel (HS-SCCH) before sending downlink data packet; After the terminal is confirmed to distribute to the resource of oneself according to received above-mentioned control signaling; To carry out demodulation to the VoIP packet that from high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH), obtains a predetermined time; Share information channel (HS-SICH) in another predetermined time through high-speed downstream then a feedback information is returned to the base station, thereby whether informing base station correctly receives above-mentioned VoIP packet.Therefore, when a plurality of packets are interlocking when transmitting, for the terminal, with the situation that accepting state and transmit status frequently replace occurring, so the descending receiving circuit at terminal will be in running order always; Have only some in particular cases, for example, the VoIP business on some directions, mourn in silence the time, core net just can reduce its frequency of sending signal automatically, thereby reduces the power consumption at terminal automatically.
Because it is above-mentioned that the business of said fixing speed has, so people hope further to reduce the power consumption (being power consumption) at terminal according to this business features.But, in the prior art, only proposed when folk prescription is upwards mourned in silence, to reduce the method for power consumption of terminal, and for the situation of state of activation, still neither one relatively effectively reduces the method for power consumption of terminal as a certain communication party.
Summary of the invention
In view of this, the main purpose of the embodiment of the invention is to provide a kind of method that reduces power consumption of terminal, thereby can reduce the power consumption of terminal when using fixed rate professional.
For achieving the above object, the technical scheme in the embodiment of the invention is achieved in that
A kind of method that reduces power consumption of terminal, this method comprises:
In each Transmission Time Interval TTI, confirm a set time section;
Network side sends to receiving terminal with the downlink service data of the fixed velocity service of required transmission in the said set time section in each TTI; In time in each TTI except that the set time section, do not send the downlink service data of said fixed velocity service;
Receive the downlink service data of the fixed velocity service of network side transmission in the said set time section of terminal in each TTI; In time in each TTI except that the set time section, do not receive the downlink service data of said fixed velocity service.
To sum up can know, a kind of method that reduces power consumption of terminal is provided in the embodiments of the invention.Owing in each TTI, confirmed a set time section in the method; And in the said set time section of network side in each TTI; The downlink service data of the fixed velocity service of required transmission is sent; Therefore can, fixed velocity service reduce the power consumption of terminal when carrying out the said fixing rate business effectively when being in state of activation.
Description of drawings
Fig. 1 is the flow chart that reduces the method for power consumption of terminal in the embodiment of the invention.
Fig. 2 is the sketch map of the transmission method of VoIP business data packet in the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage express clearlyer, the present invention is remake further detailed explanation below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 is the flow chart that reduces the method for power consumption of terminal in the embodiment of the invention.As shown in Figure 1, the method that reduces power consumption of terminal in the embodiment of the invention comprises the step that is described below:
In an embodiment of the present invention, at first need in each TTI, confirm a set time section according to the characteristics of the business datum of required transmission.Wherein, described business datum is the business data packet of fixed velocity service.Because it is certain that the business data packet of said fixed velocity service arrives the speed of receiving terminal, therefore can arrive the speed of receiving terminal according to above-mentioned business data packet, setting regular time section in each TTI.Below, we will be that the VoIP business data packet is an example with the business data packet of said fixed velocity service, and technical scheme of the present invention is carried out detailed introduction.
Fig. 2 is the sketch map of the transmission method of VoIP business data packet in the embodiment of the invention.As shown in Figure 2; In the VoIP business data packet transmission course in an embodiment of the present invention; Because the packet in the VoIP business will arrive receiving terminal with regular time interval (20ms), can be 20 milliseconds (ms) with the length setting of TTI therefore, and then first 5ms among each TTI and last 5ms are made as above-mentioned set time section; At this moment, the length of this set time section is the half the of TTI length.
Receive the downlink service data of the fixed velocity service of network side transmission in step 102, the terminal said set time section in each TTI; In time in each TTI except that the set time section, do not receive the downlink service data of said fixed velocity service.
In an embodiment of the present invention, network side sends to receiving terminal with the downlink service data of the fixed velocity service of required transmission in the said set time section in each TTI; In time in each TTI except that the set time section, do not send the downlink service data of said fixed velocity service.
Specifically; In an embodiment of the present invention; Setting said fixing after the time period; Network side can all send the downlink service data of the fixed velocity service of required transmission in the time period in said fixing, and in this TTI in the time except that the set time section, the downlink service data of not redispatching.Still the business data packet with said fixed velocity service is that the VoIP business data packet is an example; As shown in Figure 2, because can concentrating on the VoIP business data packet of required transmission among first 5ms and last 5ms among each TTI, network side sends, and in other time; The VoIP business data packet of not redispatching; Therefore, for the terminal, received descending VoIP business data packet will all concentrate among first 5ms and last 5ms among each TTI.
Owing in the transmission course of present business datum, all extensively adopted associated detection technique; And the complexity in the base band algorithm on significant proportion is because the complexity of joint-detection computing is caused; Therefore, the minimizing of joint-detection computing will reduce the power consumption at terminal largely.And in an embodiment of the present invention; Because network side (for example concentrates on the downlink data of required transmission in the set time section among each TTI; In the predefined 10ms among Fig. 2 among each TTI) send; Therefore the receiving terminal (being the terminal) that receives above-mentioned downlink data only needs to open descending receiving circuit in the time period in said fixing, receives the downlink service data of the fixed velocity service that network side sent, and in other time period, then can close descending receiving circuit; Make the descending receiving circuit at terminal only need operate as normal in the short period of time; Can be in closed condition At All Other Times, thereby reduce the joint-detection computing effectively, and finally reduce the power consumption at terminal effectively.As shown in Figure 2, if ignore the start-up time of this descending receiving circuit, when only considering the descending receiving circuit at terminal, then the effective time of the descending receiving circuit at this terminal will be merely 50% of original effective time; And if consider the overall power (being the power consumption that the power consumption of the descending receiving circuit at terminal adds up radiating circuit) at terminal, then the terminal overall power in the embodiment of the invention also is merely 75% of original overall power.
In addition; For concentrating in the said set time section among each TTI, the downlink service data with the fixed velocity service of required transmission sends to receiving terminal; In an embodiment of the present invention, when the terminal receive one make a mistake packet the time, will not return feedback signal to network side.For example; When the CRC decoding error occurring through uplink dedicated transmission channel (E-DCH) data packets for transmission that strengthens among a certain process n; The terminal need not to notify (NACk) signal through affirmation indicating channel (E-HICH) to the non-affirmation of data source (being network side) feedback, but directly carries out retransfer scheduling through E-DCH absolute grant channel (E-AGCH) by network side; That is to say that in an embodiment of the present invention, the terminal only when receiving CRC decoding proper data bag, just can be notified (ACk) signal to the network side feedback acknowledgment, thereby reduce the signal of the required transmission in terminal, has reduced the power consumption at terminal.
In addition; In the prior art; Network side can be in same 5ms sends data through two high speed descending sharing channels (HS-DSCH) simultaneously, the terminal also can't be in 5ms simultaneously the uplink dedicated transmission channel (E-DCH) through two enhancings send data.And in an embodiment of the present invention; Send in order better all downlink datas that need send to be concentrated in the set time section; Network side will send data through two HS-DSCH simultaneously in 5ms; Data also can be in 5ms be sent through two E-DCH in the terminal, and for example, network side can be through the function of the head biography/re-transmission map addresses that increases newly; When sending data through a HS-DSCH; Also can be according to dispatch command, the coded composite transport channel (CCTrCH) that will packet accordingly to be retransmitted from the soft bit buffer area of physical layer be mapped to another HS-DSCH type retransmits, thereby can in same 5ms, send data through two HS-DSCH simultaneously; Adopt and use the same method, the terminal also can be implemented in sends two E-DCH simultaneously and sends data in the same 5ms.Simultaneously, receiving terminal also is asked in the set time section (for example, in the 10ms) and accomplishes the decoding to all packets that receive.
Certainly; In an embodiment of the present invention; Also may not request network side or end side in same 5ms, to send data through two HS-DSCH or E-DCH simultaneously, and only require that HS-SCCH that scheduling retransmits and E-AGCH must be received end (being the terminal) and in above-mentioned set time section, receive.This be because; Owing to consider that the peak-to-average force ratio of the many yards transmissions in terminal requires (nonlinear distortion of the bigger then signal of peak-to-average force ratio is big more); And the first error probability that passes packet, even can not in same 5ms, send data through two E-DCH simultaneously, also only can cause certain probability (be generally 10% magnitude) the set time section prolongation (for example; Extend to 15ms), so still can reduce the power consumption at terminal effectively.
In addition; In an embodiment of the present invention; If the terminal has detected high speed descending sharing channel shared control channel (HS-SCCH) in above-mentioned set time section or the uplink dedicated transmission channel absolute grant channel (E-AGCH) that strengthens in signal; Then normal process still can be carried out according to the flow process that terminal in the prior art receives scheduling signals in the terminal, thereby has realized the compatibility between technical scheme of the present invention and the prior art.
The said method that is provided among the application of the invention embodiment; Can be when fixed velocity service be in state of activation; It is the shortest to make that the terminal is in duration of reception/transmit status; Thereby reduced the power consumption of terminal when carrying out the said fixing rate business effectively, prolonged the terminal and used professional time or stand-by time, also can reduce the caloric value at terminal.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a method that reduces power consumption of terminal is characterized in that, this method comprises:
In each Transmission Time Interval TTI, confirm a set time section;
Network side sends to receiving terminal with the downlink service data of the fixed velocity service of required transmission in the said set time section in each TTI; In time in each TTI except that the set time section, do not send the downlink service data of said fixed velocity service;
Receive the downlink service data of the fixed velocity service of network side transmission in the said set time section of terminal in each TTI; In time in each TTI except that the set time section, do not receive the downlink service data of said fixed velocity service.
2. method according to claim 1 is characterized in that, said fixed velocity service is: the speech business of internet protocol-based, web page browsing business or video stream traffic.
3. method according to claim 1 is characterized in that: the length of said set time section is the half the of said TTI length.
4. method according to claim 1 is characterized in that, this method further comprises:
When the terminal receives a packet that makes a mistake, do not return feedback signal to network side.
5. method according to claim 1 is characterized in that, this method further comprises:
Network side sends data through two high speed descending sharing channels simultaneously in 5 milliseconds;
Data are sent through the uplink dedicated transmission channel of two enhancings simultaneously in the terminal in 5 milliseconds.
6. method according to claim 1 is characterized in that, this method further comprises:
Signal in the uplink dedicated transmission channel absolute grant channel of terminal high speed descending sharing channel shared control channel that receiving scheduling retransmits in said set time section and enhancing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102233778A CN101686105B (en) | 2008-09-26 | 2008-09-26 | Method for reducing power consumption of terminal |
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| CN2008102233778A CN101686105B (en) | 2008-09-26 | 2008-09-26 | Method for reducing power consumption of terminal |
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| CN101686105A CN101686105A (en) | 2010-03-31 |
| CN101686105B true CN101686105B (en) | 2012-11-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102595566B (en) * | 2011-01-11 | 2017-10-10 | 上海贝尔股份有限公司 | A kind of method and apparatus of the pooling of resources scheduling of energy-conservation |
| EP3513605B8 (en) | 2016-09-29 | 2022-08-24 | MediaTek Inc. | Method for power consumption reduction in mobile communications |
| CN111757429B (en) * | 2019-03-26 | 2023-04-28 | 成都鼎桥通信技术有限公司 | Method, device and storage medium for reducing terminal power consumption |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622502A (en) * | 2003-11-27 | 2005-06-01 | 皇家飞利浦电子股份有限公司 | Method and apparatus for supporting downlink combined detection in TDD-CDMA communication system |
| CN101014180A (en) * | 2007-02-07 | 2007-08-08 | 重庆重邮信科股份有限公司 | HS-SCCH research monitoring method for reducing terminal power consumption in TD-SCDMA system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622502A (en) * | 2003-11-27 | 2005-06-01 | 皇家飞利浦电子股份有限公司 | Method and apparatus for supporting downlink combined detection in TDD-CDMA communication system |
| CN101014180A (en) * | 2007-02-07 | 2007-08-08 | 重庆重邮信科股份有限公司 | HS-SCCH research monitoring method for reducing terminal power consumption in TD-SCDMA system |
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