CN101453780B

CN101453780B - Electricity saving method for TD-SCDMA terminal

Info

Publication number: CN101453780B
Application number: CN200710194748XA
Authority: CN
Inventors: 马毅华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2007-12-03
Filing date: 2007-12-03
Publication date: 2011-04-06
Anticipated expiration: 2027-12-03
Also published as: CN101453780A

Abstract

The invention discloses a power-saving method for time-division synchronous code-division multi-access terminals. The method comprises the following steps: (1) a threshold is arranged on a time-division synchronous code-division multi-access terminal; (2) the time-division synchronous code-division multi-access terminal caches uplink original data, and when the cached uplink original data reaches the threshold, the cached uplink original data is sent to a baseband. The method caches data between an original rate source and the baseband so as to complete expected rate adjustment, and can obtain effects of saving power and improving empty-port performance.

Description

A kind of electricity saving method of TD-SCDMA terminal

Technical field

The present invention relates to TD-SCDMA (Time Division-Synchronous Code DivisionMultiple Access, TD SDMA) terminal, relate in particular to a kind of electricity saving method of TD-SCDMA terminal.

Background technology

Interactive class and background business for TD-SCDMA terminal up direction, the fluctuating of upstream rate (may change in the scope of standard configuration value from 0 along with professional operating position speed) is common, up DPCH (Dedicated Downlink Physical Channel for the TD-SCDMA system, DPCH), the different speed of up direction rises and falls and can produce two kinds of results at the uplink baseband of TD-SCDMA:

1, if upstream rate reduces to 0, up DTX (Discontinuous Transmission, discontinuous emission) beginning;

2, do not have if upstream rate is lower than standard configuration to 0, up direction through-rate coupling takes the physical resource that is distributed.

For above-mentioned two kinds of situations, above-mentioned result 1 is that system comparatively wishes, reason is:

1) from the angle of terminal power saving, when up DTX begins, base band is except (being called SBGP (Special Burst Generation Gap according to the cycle among the TD-SCDMA, the special burst generation cycle)) outside the up emission special burst, up stopping of all the other times in cycle launched, the terminal base band can be closed the radiating circuit of oneself fully, reaches maximum power saving;

2) from the angle of ascending idle port performance, during up DTX owing to uply be transmitted in up SBGP and almost completely close in the cycle, farthest reduced the interference of eating dishes without rice or wine, the existence of periodic up special burst has simultaneously kept the synchronous and power control of the closed loop of link, so link keeps no problem (system has corresponding Processing Algorithm to guarantee this point) during up DTX during DTX, has farthest reduced the interference of eating dishes without rice or wine simultaneously.And upstream rate is lower than standard configuration but not to 0 situation, the coding gain of up direction constantly changes, and the effect of aggravation fluctuation is played in the fluctuation of up SIR (signal to noise ratio), and the ascending idle port overall performance is poorer than the uplink performance of constant rate of speed.

On the up direction of TD-SCDMA system, angle from eat dishes without rice or wine performance or power saving, more satisfactory situation is: on up DPCH, upstream rate preferably only is in two states standard configuration or 0, and is not in the state of the not enough full configuration of speed chronically or frequently.But prior art does not address this problem.

Summary of the invention

Technical problem solved by the invention provides a kind of electricity saving method of TD-SCDMA terminal, can make upstream rate be in the state of standard configuration speed or 0 speed as far as possible.

Technical scheme is as follows:

A kind of electricity saving method of TD-SCDMA terminal comprises the steps:

(1) thresholding is set on TD-SCDMA terminal;

(2) described TD-SCDMA terminal carries out buffer memory to up initial data, when the up initial data of buffer memory reaches described thresholding, the up initial data of described buffer memory is sent to base band.

The method of the invention, wherein, described thresholding refers to the flow control thresholding, i.e. data volume under the full configuration speed of N Transmission Time Interval TTI, wherein, N is the integer more than or equal to 1.

Further, described thresholding also is a time value, i.e. timer thresholding when the time of the up initial data accumulation of described buffer memory reaches described thresholding, sends to described base band with the up initial data of described buffer memory.

Further, when the time that the up initial data of described buffer memory is accumulated reached the time of described timer setting, even without reaching described flow control thresholding, also the up initial data with described buffer memory sent to described base band.

Further, the time of described timer setting is determined according to the service quality QoS requirements of the radio bearer that described TD-SCDMA terminal distributed.

The present invention carries out buffer memory and finishes desirable speed adjustment between original rate source and base band, with the benefit that obtains power saving and the performance of eating dishes without rice or wine improves.

For interactive class and background business, because professional QoS (Quality of Service own, service quality) delay and jitter that can hold is bigger, so carrying out between original rate source and the base band after suitable buffer memory finishes desirable speed and adjust, such processing produces additional delay and jitter to business and can ignore.

Description of drawings

Fig. 1 is the flow chart of the electricity saving method preferred embodiment of TD-SCDMA terminal of the present invention.

Embodiment

The present invention program finishes buffer memory and Flow Control to up initial data, and then sends to base band for carry out suitable caching process between original rate source (being the TD-SCDMA terminal) and Base-Band Processing.

Among the present invention, the TD-SCDMA terminal is provided with a thresholding, when the up initial data of buffer memory reaches this thresholding, gives base band with data again.This thresholding can be the data volume under the full configuration speed of N TTI (Transmission Time Interval), and wherein, N is the integer more than or equal to 1, and is data cached always when the up initial data of buffer memory does not reach this thresholding, and giving the speed of base band is 0.In addition, in order to ensure the qos requirement of delay and jitter, one timer can be set, when the accumulated time amount of the up initial data of buffer memory reaches the time that described timer is provided with, even without reaching above-mentioned thresholding, also the up initial data with described buffer memory sends to described base band, and the time of this timer setting is determined according to the qos requirement of the radio bearer that the TD-SCDMA terminal is distributed.

Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is described in detail.

As shown in Figure 1, be the flow chart of preferred embodiment of the electricity saving method of TD-SCDMA terminal of the present invention, comprise the steps:

Step S101, terminal detects the up initial data that the needs in the TTI send.

Terminal is provided with a flow control thresholding T1 and a timer thresholding T2 (these two thresholdings can be realized by software module or hardware), wherein, T1 can be set to the logic channel that terminal distributes and adopt the pairing transmission data volume of emission maximum speed in 1 TTI, and T2 can determine according to the qos requirement of the radio bearer that is distributed for the TD-SCDMA terminal.

Step S102, whether terminal judges has up initial data to send.

If any, then change step S103, otherwise, change step S101, continue to detect.

Step S103, terminal is carried out buffer memory to detected up initial data.

Step S104, whether the data volume of the up initial data of terminal judges buffer memory more than or equal to thresholding T1, if, then change step S105, otherwise, step S1 06 changeed.

Step S105, terminal is given physical layer with the up initial data of buffer area and is sent to base band, changes step 101 then, continues to detect.

Step S106, if the data volume of the up initial data of terminal buffers less than thresholding T1, whether terminal continues to judge the shared time of up initial data that buffer area do not send more than or equal to thresholding T2, if, then change step S105, otherwise, commentaries on classics step S101.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims

1. the electricity saving method of a TD-SCDMA terminal is characterized in that, comprises the steps:

(1) thresholding is set on TD-SCDMA terminal, described thresholding refers to the flow control thresholding, i.e. data volume under the full configuration speed of N Transmission Time Interval TTI, and wherein, N is the integer more than or equal to 1;

2. method according to claim 1, it is characterized in that, this method also comprises the timer thresholding is set, when the time that the up initial data of described buffer memory is accumulated reaches the time of described timer setting, even without reaching described flow control thresholding, also the up initial data with described buffer memory sends to described base band.

3. as method as described in the claim 2, it is characterized in that the time of described timer setting is determined according to the service quality QoS requirements of the radio bearer that described TD-SCDMA terminal distributed.