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Method and device for collocating discontinuous receiving cycle starting point

A discontinuous reception and starting point technology, applied in the field of mobile communication, can solve the problems that the balance of resource utilization cannot be achieved, and the LTE TDD system is no longer applicable.

Active Publication Date: 2009-09-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

Obviously, the balance of resource utilization cannot be achieved
[0013] It can be seen that the DRX cycle starting point configuration method of the existing LTE FDD system is no longer applicable to the LTE TDD system

Method used

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  • Method and device for collocating discontinuous receiving cycle starting point
  • Method and device for collocating discontinuous receiving cycle starting point
  • Method and device for collocating discontinuous receiving cycle starting point

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Embodiment Construction

[0031] The reason why the existing LTE FDD DRX cycle starting point configuration method cannot be applied to the LTE TDD system is that this configuration method does not take into account the downlink subframe distribution characteristics of the LTE TDD system, and configures the DRX cycle starting point of some UEs in the uplink subframe. However, the downlink scheduling signaling will obviously not be issued in the uplink subframe, so this part of the configuration can be considered invalid.

[0032] In view of the distribution characteristics of the downlink subframes of the LTE TDD system, the embodiment of the present invention proposes a method for configuring the starting point of the DRX cycle. The starting point of the DRX cycle can only be located in the downlink subframe; Frames are evenly distributed. It should be noted that the DwPTS in the special subframe can schedule downlink transmission, so the DwPTS can be regarded as a downlink subframe.

[0033] In orde...

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Abstract

The invention discloses a method for collocating a discontinuous receiving cycle starting point, including the following steps: offsets of the starting points of the DRX cycles of all users in a long-term evolution item time division multiplexing (LTE TDD) wireless frame are obtained, and the offsets of different users are distributed on a downlink subframe of the LTE TDD wireless frame; and the offsets of the starting points of the DRX cycles are sent to a corresponding user terminal. The invention also discloses a device for collocating a discontinuous receiving cycle starting point. The scheme of the invention enables the time for a plurality of terminals to start up the DRX to be evenly distributed on all downlink subframes in an LTE TDD system, thereby the equilibrium of the utilization ratio of downlink dispatching and downlink resources can be achieved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and in particular to a method and device for configuring a start point of a discontinuous reception (Discontinuous Reception, DRX) cycle. Background technique [0002] In the Long Term Evolution (LTE) system of the 3GPP, a Discontinuous Reception (DRX) technology is introduced in a Radio Resource Control (Radio Resource Control, RRC) connection state. DRX means that the terminal discontinuously receives downlink scheduling and downlink data. When it does not need to receive downlink data, the terminal can be in a sleep state, and the radio frequency unit and even other processing units of the terminal can not work, so as to achieve the purpose of power saving. [0003] The principle of periodic configuration of DRX is as follows: figure 1 shown. At the beginning of each DRX cycle, it first enters a short continuous receiving state, which is called an on-duration, and usuall...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W72/12
CPCY02D30/70
Inventor 谌丽李国庆高卓赵训威
Owner DATANG MOBILE COMM EQUIP CO LTD
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