Method of determining starting point of drx discontinuous reception cycle and apparatus thereof

A discontinuous reception and starting point technology, applied in the field of mobile communication, can solve the problems of not considering CQI, SRS, and RI transmission factors, and cannot effectively evaluate the quality of uplink and downlink channels, so as to improve throughput, ensure evaluation, and balance hardware load effect

Active Publication Date: 2013-10-30
苏州医疗器械产业发展集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a method and device for determining the starting point of the discontinuous reception cycle, which is used to solve the problem that the CQI, SRS, and RI transmission factors are not considered when configuring the DRX starting point in the prior art, so that there is no CQI, SRS, and RI transmission, resulting in the inability to effectively evaluate the quality of the uplink and downlink channels

Method used

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  • Method of determining starting point of drx discontinuous reception cycle and apparatus thereof
  • Method of determining starting point of drx discontinuous reception cycle and apparatus thereof
  • Method of determining starting point of drx discontinuous reception cycle and apparatus thereof

Examples

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example 1

[0097] In this example, the DRX cycle is configured for the service performed by the UE in an LTE cell, and the DRX cycle is set to 40ms, the on duration is 10ms, the CQI reporting cycle is 40ms, the CQI subframe offset is 5, and the RI cycle is 40ms , the RI subframe offset is 6, the SRS period is 20ms, and the SRS subframe offset is 1;

[0098] Configuring the starting point of the DRX cycle according to the technical solution of the embodiment of the present invention includes the following processing:

[0099] Step 1, randomly generate an N between 0 and 39, N=10, M=N;

[0100] Step 2, determine whether the CQI has the opportunity to transmit within the on duration time:

[0101] Step 21, calculate DRX cycle , CQI sending period, and the least common multiple of 10: 40;

[0102] Step 22, assigning n=0, that is, starting from the first cycle of DRX, the starting point is that SFN (system frame number) is equal to 0;

[0103] Step 23, calculate Y CQI1 =ceil((10+0+40*0-5...

example 2

[0112] In this example, due to service changes, the DRX cycle is reconfigured for UEs in an LTE cell. The DRX cycle is set to 80ms, the on duration is 10ms, the CQI reporting cycle is 40ms, the CQI subframe offset is 5, and the RI cycle is 80ms, the RI subframe offset is 5, the SRS period is 20ms, and the SRS subframe offset is 1;

[0113] Configuring the starting point of the DRX cycle according to the technical solution of the embodiment of the present invention includes the following processing:

[0114] Step 1, randomly generate an N between 0 and 79, N=50, M=N;

[0115] Step 2, determine whether the CQI has the opportunity to transmit within the on duration time:

[0116] Step 21, calculate DRX cycle , CQI sending period, and the least common multiple of 10: 80;

[0117] Step 22, assigning n=0, that is, starting from the first cycle of the DRX cycle, the starting point is that SFN (system frame number) is equal to 0;

[0118] Step 23, calculate Y CQI1 =ceil((50+0+80*...

example 3

[0127] When the CQI, RI, SRS, and DRX cycles of the UE have configurations that are not integer multiples of 10, the method in the technical solution has more advantages. In this example, since the UE in a certain LTE cell performs DRX configuration, and the CQI, SRS, and RI parameters are modified due to some reasons, it is necessary to re-evaluate whether the DRX cycle start point is set properly.

[0128] Set the DRX period to 40ms, the on duration to 10ms, the CQI reporting period to 40ms, the CQI subframe offset to 5, the RI period to 40ms, the RI subframe offset to 6, the SRS period to 20ms, and the SRS subframe offset to 1 ;

[0129] Due to system performance requirements, the CQI period is modified to 20ms, the CQI subframe offset is 5, the RI period is 40ms, the RI subframe offset is 6, the SRS period is 20ms, and the SRS subframe offset is 1;

[0130] Configuring the starting point of the DRX cycle according to the technical solution of the embodiment of the present...

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Abstract

The invention discloses a method of determining a starting point of a drx discontinuous reception cycle and an apparatus thereof. The method comprises a first step of obtaining a temporary variable N and assigning N to M, where, 0 is less than or equal to N is less than or equal to DRXcycle-1 and DRXcycle represents a DRX cycle length; a second step of determining whether a channel quality indicator (CQI), a rank indication (RI) and a sounding reference signal (SRS) have a launch opportunity in a DRX cycle monitoring period, and executing a third step if the answer is yes or executing a fourth step otherwise; the third step of determining N as the starting point of the DRX cycle and ending the operation; and the fourth step of letting N equal to mod(N+1, DRXcycle), determining whether N is equal to M or not, and ending the operation if the answer is yes, or executing the second step otherwise. With the technical scheme of the invention, evaluation of the quality of uplink and downlink channels can be effectively ensured and throughput of the system is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and a device for determining the starting point of a Discontinuous Reception (DRX) cycle. Background technique [0002] In the Long Term Evolution (LTE for short) system of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short), a radio resource control (Radio Resource Control, RRC for short) connection state introduces DRX, DRX refers to: the terminal receives downlink scheduling and downlink data discontinuously. When it does not need to receive downlink data, the terminal can be in a sleep state, and the radio frequency unit and other processing units of the terminal can not work, so as to save power the goal of. [0003] figure 1 is a schematic diagram of the periodic configuration of DRX in the prior art, such as figure 1 As shown, each DRX enters a short continuous receiving state at the beginning, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/00
Inventor 苑秋红
Owner 苏州医疗器械产业发展集团有限公司
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