CN101610538B - Measurement scheduling method and device of terminal in long term evolution system - Google Patents
Measurement scheduling method and device of terminal in long term evolution system Download PDFInfo
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- CN101610538B CN101610538B CN2009100888623A CN200910088862A CN101610538B CN 101610538 B CN101610538 B CN 101610538B CN 2009100888623 A CN2009100888623 A CN 2009100888623A CN 200910088862 A CN200910088862 A CN 200910088862A CN 101610538 B CN101610538 B CN 101610538B
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Abstract
The invention provides a measurement scheduling method and a device of a terminal in a long term evolution system. The measurement scheduling method comprises the steps of calculating the initial position and the final position of a measurement Gap by the terminal and judging whether the complete measurement Gap exists in a non-activation time period of a DRX cycle or not by the terminal according to the initial position and the final position, if so, the complete measurement Gap is transferred to the end of the latest activation time period or the initial position of the next activation time period, and the terminal is arranged in the complete measurement Gap for carrying out the measurement of a different-frequency cell or a different-RAT cell. The power consumption of the terminal can be effectively reduced in accordance with the invention.
Description
Technical field
The present invention relates to communication technical field, be specifically related to the measurement scheduling method and the device of discontinuous reception (DRX) pattern of terminal under Radio Resource control (RRC) connection status in a kind of Long Term Evolution (LTE) system.
Background technology
In the LTE system design, for the power saving of terminal and utilize resource efficiently,, introduced discontinuous reception (DRX) pattern under the RRC connection status according to the highly paroxysmal characteristics of packet switching (PS) business.Network is the terminal distribution DRX cycle, and in each DRX cycle, terminal is provided with activationary time and non-activationary time according to certain condition.In activationary time, terminal all needs to receive the descending control signaling that carries on the grouping Dedicated Control Channel (PDCCH) at each descending sub frame, with information such as acquisition system resource allocation, adaptive modulation and coded systems, thereby correctly carry out the transmission of up-downgoing data; Perhaps terminal is mixed activities such as the reception of automatic repeat requests (HARQ) feedback and transmission as required.In non-activationary time, terminal then can be dispatched and be entered sleep state.
As shown in Figure 1, under the RRC connection status, terminal is opened a duration timer (onDurationTimer) at the section start of DRX cycle, in the timing of onDurationTimer, terminal is a state of activation, all needs to detect the PDCCH channel at each descending sub frame; Can send new data if in this timing, detect network, terminal is then opened an activationary time timer (drx-InactivityTimer), in the timing of drx-InactivityTimer, terminal still is a state of activation, need detect the PDCCH channel at each descending sub frame, to obtain descending control signaling.Can not send new data if detect network in the timing of onDurationTimer, then when this timing finished, terminal entered unactivated state.
Under the RRC connection status, in order to guarantee the mobility of terminal, network needs terminal to carry out the measurement of Serving cell and neighbor cell, and according to certain measurement report trigger condition, measurement report is reported network, and network based measurement report such as switches at movable decision-making.
Be subjected to the terminal radio frequency Effect on Performance, the sign of alien-frequency district or different wireless access technology (RAT) sub-district and measurement can't send with the Data Receiving of Serving cell and the Data Receiving of co-frequency cell be carried out simultaneously, therefore, in the LTE system, introduced the notion of measurement clearance (Gap).
The measurement of LTE can be divided into two types: needs are measured the auxiliary measurement of Gap and are not needed to measure the auxiliary measurement of Gap.Co-frequency neighbor cell does not need to measure Gap just can carry out measurement, and they are referred to as not need to measure the auxiliary measurement of Gap; And for alien-frequency district or different RAT sub-district, if do not measure Gap, terminal can not carried out this measurement, so they are exactly to need to measure the auxiliary measurement of Gap.
Fig. 2 is the measurement Gap schematic diagram in the LTE system.Measure Gap by network configuration, measuring within the Gap, terminal can only be carried out the sign and the measurement of alien-frequency district or different RAT sub-district, does not allow to send data, does not also allow to receive any with data frequently.Network is that the concrete parameter of measurement Gap of terminal configuration is as shown in the table:
| The Gap pattern identification | Measurement Gap length (MGL, ms) | Measurement Gap repetition (MGRP, ms) |
| 0 | 6 | 40 |
| 1 | 6 | 80 |
Table 1
Measurement Gap pattern is disposed and is activated by the RRC of network, and terminal is calculated the method for measuring the Gap original position and is:
Determine to measure the System Frame Number (SFN) of Gap original position:
SFN?modT＝FLOOR(gapOffset/10)(1)
Determine to measure the subframe numbers (subframe) of Gap original position:
subframe＝gapOffsetmod?10(2)
Wherein, mod is the complementation operator, and FLOOR () is for rounding downwards, and gapOffset is by network configuration, corresponding different Gap patterns, and span is respectively 0～39 and 0～79, T=MGRP/10;
Terminal is done the sign of alien-frequency district or different RAT sub-district and is measured and sight shown in Fig. 3 may occur.As shown in Figure 3, in non-activationary time section, exist some to measure Gap (its length is Tmgl), terminal need be carried out the measurement or the sign of alien-frequency district or different RAT sub-district in measuring Gap; In the t1 moment, the last activationary time section finishes, and terminal enters sleep state; In the t2 moment, in the original position of measuring Gap, terminal need be waken up, and begins to measure alien-frequency district or different RAT sub-district, and t3 finishes the measurement activity of measuring within the Gap constantly, and terminal scheduling enters sleep state; T4 is constantly measuring the original position of Gap next time, and terminal need be waken up, and begins to measure alien-frequency district or different RAT sub-district, and t5 finishes the measurement activity of measuring within the Gap constantly, and terminal scheduling enters sleep state; T6 is constantly measuring the original position of Gap next time, and terminal need be waken up, and begins to measure alien-frequency district or different RAT sub-district, and t7 finishes the measurement activity of measuring within the Gap constantly, and terminal scheduling enters sleep state; T8 wakes terminal up and enters the activationary time section constantly.
In realizing process of the present invention, the present application people finds: for terminal, all need 1 time of δ to prepare at every turn and enter sleep, all need a period of time δ 2 to do some initial work from sleep awakening, so at every turn, in Fig. 3, in order to do measurement, the time span of waking up is 3 * (Tmgl+ δ 1+ δ 2), undoubtedly in the non-activationary time section of DRX, δ 1 and δ 2 are many more, and terminal is that the extra power consumption that measurement increased also will be many more.
Summary of the invention
Technical problem to be solved by this invention provides the measurement scheduling method and the device of terminal in a kind of long evolving system, to reduce the power consumption of terminal.
For solving the problems of the technologies described above, it is as follows to the invention provides technical scheme:
The measurement scheduling method of terminal in a kind of long evolving system, described terminal are in the DRX pattern under the RRC connection status, and described measurement scheduling method comprises:
Terminal is calculated original position and the end position of measuring Gap;
Terminal is judged according to described original position and end position, whether comprise complete measurement Gap in the non-activationary time section in DRX cycle, if then described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section;
Terminal is carried out the measurement of alien-frequency district or different RAT sub-district in described complete measurement Gap.
Above-mentioned method wherein, is transferred to ending place of the last activationary time section with described complete measurement Gap or the section start of next activationary time section comprises:
After all complete measurement Gap in the described non-activationary time section are merged, be transferred to ending place of the last activationary time section or the section start of next activationary time section.
Above-mentioned method wherein, is transferred to ending place of the last activationary time section with described complete measurement Gap or the section start of next activationary time section comprises:
After a part among all complete measurement Gap in the described non-activationary time section merged, be transferred to ending place of the last activationary time section;
After another part among all complete measurement Gap in the described non-activationary time section merged, be transferred to the section start of next activationary time section.
Above-mentioned method wherein, also comprises:
Terminal is judged according to described original position and end position, whether comprise in the activationary time section in DRX cycle and measure Gap, if, then in the measurement Gap in described activationary time section, carry out the measurement of alien-frequency district or different RAT sub-district, and stop the data transmit-receive of Serving cell.
The measurement dispatching device of terminal in a kind of long evolving system, described terminal is in the DRX pattern under the RRC connection status, and described measurement dispatching device comprises:
Measure the Gap position calculation unit, be used to calculate original position and the end position of measuring Gap;
Measure the Gap buanch unit, be used for judging according to described original position and end position, whether comprise complete measurement Gap in the non-activationary time section in DRX cycle, if then described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section;
Measure scheduling unit, be used in described complete measurement Gap, carrying out the measurement of alien-frequency district or different RAT sub-district.
The embodiment of the invention has reduced the time span of waking up in the described non-activationary time section by the measurement Gap in the non-activationary time section is shifted, thereby has reduced the power consumption of terminal.And the technical scheme of the embodiment of the invention does not change the measurement capability of DRX pattern under the RRC connection status.
Description of drawings
Fig. 1 is a DRX pattern diagram under the RRC connection status in the LTE system;
Fig. 2 is the measurement Gap schematic diagram in the LTE system;
Fig. 3 is the measurement Gap schematic diagram that exists in the non-activationary time section in the LTE system;
Fig. 4 is the measurement scheduling method flow chart of terminal in the long evolving system of the embodiment of the invention;
Fig. 5 is the scheduling of the measurement in a DRX cycle activationary time schematic diagram in the embodiment of the invention;
Fig. 6 is to a kind of branch mode schematic diagram of the measurement Gap in the non-activationary time section in the embodiment of the invention;
Fig. 7 is to the another kind of branch mode schematic diagram of the measurement Gap in the non-activationary time section in the embodiment of the invention;
Fig. 8 is the structural representation of the measurement dispatching device of terminal in the long evolving system of the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
Fig. 4 is the measurement scheduling method of terminal in the long evolving system of the embodiment of the invention, and described terminal is in the DRX pattern under the RRC connection status, and with reference to Fig. 4, described measurement scheduling method mainly comprises the steps:
Step 401: terminal is calculated original position and the end position of measuring Gap;
Terminal can calculate the original position that certain measures Gap according to formula in the background technology (1) and formula (2), then, measures the duration T mgl of Gap according to described original position and this, can obtain the end position of this measurement Gap.
Step 402: terminal is judged according to described original position and end position, whether comprise complete measurement Gap in the non-activationary time section in DRX cycle, if then described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section;
Here, so-called complete measurement Gap is meant that the original position of this measurement Gap and end position all are in the non-activationary time section.If measure Gap and cross over activationary time section and non-activationary time section for one, then do not belong to the complete measurement Gap of the present invention's definition, the embodiment of the invention is not done transfer processing to it yet.
Step 403: terminal is carried out the measurement of alien-frequency district or different RAT sub-district in described complete measurement Gap.
Further, terminal can also be judged according to described original position and end position, whether comprise in the activationary time section in DRX cycle and measure Gap, (if referring to all or part of this activationary time section that is positioned at of this measurement Gap), then in the measurement Gap in described activationary time section, carry out the measurement of alien-frequency district or different RAT sub-district, and stop the data transmit-receive of Serving cell; If not, then can in described activationary time section, carry out the measurement of Serving cell and co-frequency neighbor cell, and, carry out the data transmit-receive of Serving cell.As shown in Figure 5, exist in the activationary time section when measuring Gap, in measuring Gap, carry out the measurement scheduling of alien-frequency district or different RAT sub-district, and stop the scheduling of the data transmit-receive of Serving cell.
Below introduce the concrete mode that the complete measurement Gap in the non-activationary time section is shifted.
Mode one
After all complete measurement GAP in the described non-activationary time section are merged, be transferred to ending place of the last activationary time section or the section start of next activationary time section.
As shown in Figure 6, in non-activationary time section, comprise 3 complete measurement Gap, after these 3 complete measurement Gap are merged, transferred to ending place of the last activationary time section.Certainly, after also these 3 complete measurement Gap can being merged, transfer to the section start of next activationary time section.
In non-activationary time section, if measure scheduling according to original measurement Gap fully, like this, t2 for doing the measurement of alien-frequency district or different RAT sub-district, needs 3 * (Tmgl+ δ 1+ δ 2) duration to three measurement Gap of t7; Adopt technical scheme of the present invention, after t2 is measured Gap and shifts to three of t7, for doing the measurement of alien-frequency district or different RAT sub-district, the duration that only needs 3 * Tmgl, can save the end activity of 3 * (δ 1+ δ 2) durations, so, reduce the power consumption of terminal.
Need to prove that in the present invention, what is called merges complete measurement Gap, comprise the situation of having only a complete measurement Gap, that is,, be referred to as also that in the present invention complete measurement Gap is merged the back and shift if a complete measurement Gap is shifted.
Mode two
After a part among all complete measurement Gap in the described non-activationary time section merged, be transferred to ending place of the last activationary time section; After another part among all complete measurement Gap in the described non-activationary time section merged, be transferred to the section start of next activationary time section.
As shown in Figure 7, in non-activationary time section, comprise 3 complete measurement Gap, after preceding 2 complete measurement Gap merging, transferred to ending place of the last activationary time section, the 3rd complete measurement Gap transferred to the section start of next activationary time section.Certainly, also the 1st complete measurement Gap can be transferred to ending place of the last activationary time section, and, transfer to the section start of next activationary time section after back 2 complete measurement Gap merging.
Description corresponding to said method, below introduce the measurement dispatching device of terminal in the long evolving system of the embodiment of the invention, described terminal is in the DRX pattern under the RRC connection status, with reference to Fig. 8, this measurement dispatching device comprises: measure the Gap position calculation unit, measure the Gap buanch unit and measure scheduling unit.
Measure the Gap position calculation unit, be used to calculate original position and the end position of measuring Gap.
Measure the Gap position calculation unit and can calculate the original position that certain measures Gap, then, measure the duration T mgl of Gap, can obtain the end position of this measurement Gap according to described original position and this according to formula in the background technology (1) and formula (2).
Measure the Gap buanch unit, be used for judging according to described original position and end position, whether comprise complete measurement Gap in the non-activationary time section in DRX cycle, if then described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section.
Measurement Gap buanch unit is transferred to ending place of the last activationary time section or the section start of next activationary time section after all the complete measurement Gap in the described non-activationary time section can being merged.
After measurement Gap buanch unit can also merge the part among all the complete measurement Gap in the described non-activationary time section, be transferred to ending place of the last activationary time section; After another part among all complete measurement Gap in the described non-activationary time section merged, be transferred to the section start of next activationary time section.
Measure scheduling unit, be used in described complete measurement Gap, carry out the measurement of alien-frequency district or different RAT sub-district, and, judge according to described original position and end position whether comprise in the activationary time section in DRX cycle and measure Gap, if, then in the measurement Gap in described activationary time section, carry out the measurement of alien-frequency district or different RAT sub-district, and stop the data transmit-receive of Serving cell.
In sum, the embodiment of the invention has reduced the time span of waking up in the described non-activationary time section by the measurement Gap in the non-activationary time section is shifted, thereby has reduced the power consumption of terminal.And the technical scheme of the embodiment of the invention does not change the measurement capability of DRX pattern under the RRC connection status.
Should be noted that at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spiritual scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (4)
1. the measurement scheduling method of terminal in the long evolving system, described terminal is in the discontinuous reception DRX pattern under the radio resource control RRC connection status, it is characterized in that described measurement scheduling method comprises:
Terminal is calculated original position and the end position of measurement clearance Gap;
Terminal is judged according to described original position and end position, whether comprise complete measurement Gap in the non-activationary time section in DRX cycle, if then described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section;
Terminal is carried out the measurement of alien-frequency district or different wireless access technology RAT sub-district in described complete measurement Gap;
Wherein, described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section comprises:
After all complete measurement Gap in the described non-activationary time section are merged, be transferred to ending place of the last activationary time section or the section start of next activationary time section; Perhaps
After a part among all complete measurement Gap in the described non-activationary time section merged, be transferred to ending place of the last activationary time section;
After another part among all complete measurement Gap in the described non-activationary time section merged, be transferred to the section start of next activationary time section.
2. measurement scheduling method as claimed in claim 1 is characterized in that, also comprises:
Terminal is judged according to described original position and end position, whether comprise in the activationary time section in DRX cycle and measure Gap, if, then in the measurement Gap in described activationary time section, carry out the measurement of alien-frequency district or different RAT sub-district, and stop the data transmit-receive of Serving cell.
3. the measurement dispatching device of terminal in the long evolving system, described terminal is in the DRX pattern under the RRC connection status, it is characterized in that, and described measurement dispatching device comprises:
Measure the Gap position calculation unit, be used to calculate original position and the end position of measuring Gap;
Measure the Gap buanch unit, be used for judging according to described original position and end position, whether comprise complete measurement Gap in the non-activationary time section in DRX cycle, if then described complete measurement Gap is transferred to ending place of the last activationary time section or the section start of next activationary time section;
Measure scheduling unit, be used in described complete measurement Gap, carrying out the measurement of alien-frequency district or different RAT sub-district;
Wherein, described measurement Gap buanch unit is further used for:
After all complete measurement Gap in the described non-activationary time section are merged, be transferred to ending place of the last activationary time section or the section start of next activationary time section; Perhaps
After a part among all complete measurement Gap in the described non-activationary time section merged, be transferred to ending place of the last activationary time section;
After another part among all complete measurement Gap in the described non-activationary time section merged, be transferred to the section start of next activationary time section.
4. measurement dispatching device as claimed in claim 3 is characterized in that, described measurement scheduling unit also is used for:
Judge according to described original position and end position, whether comprise in the activationary time section in DRX cycle and measure Gap, if, then in the measurement Gap in described activationary time section, carry out the measurement of alien-frequency district or different RAT sub-district, and stop the data transmit-receive of Serving cell.
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| US10367677B2 (en) | 2016-05-13 | 2019-07-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
| US10630410B2 (en) | 2016-05-13 | 2020-04-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Network architecture, methods, and devices for a wireless communications network |
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| CN110312267B (en) * | 2018-03-27 | 2023-03-21 | 维沃移动通信有限公司 | Method and apparatus for switching bandwidth parts |
| CN112235822B (en) * | 2020-09-23 | 2022-09-27 | 紫光展锐(重庆)科技有限公司 | Communication measurement method, device, apparatus and storage medium |
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