Method and device for determining start point of discontinuous reception period

A technology of discontinuous reception and starting point, applied in the field of mobile communication, it 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 equalize hardware. load effect

Active Publication Date: 2016-08-03
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 and device for determining start point of discontinuous reception period
  • Method and device for determining start point of discontinuous reception period
  • Method and device for determining start point of discontinuous reception period

Examples

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example 1

[0097] In this example, the DRX cycle is configured for the UE in a certain LTE cell. The DRX cycle is set to 40ms, the onduration 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 a chance to transmit within the onduration 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) / 40)=1;

[0104] Step 24, calc...

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 onduration is 10ms, the CQI reporting cycle is 40ms, the CQI subframe offset is 5, and the RI cycle is 80ms, RI subframe offset is 5, SRS period is 20ms, 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 a chance to transmit within the onduration 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*0-5) / 40)=2;

[0119] Ste...

example 3

[0127] When the CQI, RI, SRS, and DRX cycles of the UE have configurations that are not an integer multiple 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 modifies the CQI, SRS, and RI parameters for some reasons, it is necessary to re-evaluate whether the DRX cycle start point is properly set.

[0128] Set the DRX period to 40ms, the 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 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 start point of the DRX cycle according to the technical solution of the embodiment of the present invention includes the fo...

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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), DRX is introduced in the radio resource control (Radio Resource Control, RRC for short) connection state, and DRX refers to: a terminal For discontinuous reception of downlink scheduling and downlink data, when there is no 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 achieve the purpose of power saving. [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 st...

Claims

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Application Information

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Patent Type & Authority Patents(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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