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A discontinuous reception control method and device

A technology of discontinuous reception and control method, applied in the field of discontinuous reception control method and device, can solve the problems of increasing terminal power consumption, signaling error of retransmission mechanism, increasing UE energy consumption, etc.

Inactive Publication Date: 2012-02-08
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The era of 3G / 4G is coming to us in great strides, and the functions of terminals are becoming more and more powerful. These functions greatly enrich people's demand for entertainment, but at the same time, they also increase the power consumption of terminals.
[0011] In the energy-saving mechanism of LTE, in order to save signaling overhead, the HARQ mechanism is supported by adding retransmission activation. However, there is an unsolved problem: how to deal with signaling errors in the retransmission mechanism
This solution is relatively easy to implement, but its disadvantage is that once a NACK is mistaken for an ACK error, it will increase the energy consumption of the UE. Once an ACK is mistaken for a NACK error or the ACK is lost, the eNB will continue to retransmit data. waste of system resources

Method used

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  • A discontinuous reception control method and device
  • A discontinuous reception control method and device
  • A discontinuous reception control method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0158] This embodiment specifically describes a discontinuous reception control method provided by the present invention, including the following steps:

[0159] Step 1: The base station device sends new data to the user device, and at the same time starts the corresponding hybrid automatic repeat request process, and adjusts the timers in the discontinuous reception mechanism accordingly;

[0160] The discontinuous reception mechanism timer in the hybrid automatic repeat request process includes a base station round-trip delay timer, a base station retransmission timer, a base station extended round-trip delay timer and a base station retransmission remaining timer;

[0161] Said starting the corresponding HARQ process is starting the round-trip delay timer at the base station;

[0162] The adjustments include:

[0163] (1) The overflow length of the extended round-trip delay timer at the base station end is set to be equal to the overflow length of the base station end rou...

Embodiment 2

[0211] This embodiment specifically describes a discontinuous reception control device provided by the present invention, including base station equipment, user equipment, base station round trip delay timer, base station retransmission timer, user end round trip delay timer . The user end retransmission timer, characterized in that the device also includes a base station end extended round-trip delay timer, a base station end retransmission remaining timer, a user end extended round-trip delay timer, and a user end retransmission remaining timer;

[0212] The extended round-trip delay timer at the base station end is used to record the minimum time interval between the feedback signal of the user end equipment and the retransmission signal transmission time of the base station end equipment, and indicates that no feedback signal from the user end equipment was received during the previous data retransmission process;

[0213] The user end extended round-trip delay timer is u...

Embodiment 3

[0233]This embodiment describes an embodiment of a DRX control device at a network end base station (eg, eNB) according to the present invention.

[0234] Such as Figure 5.1 and 5.2 As shown, the DRX control timers related to the present invention at the base station include a round-trip delay timer, an extended round-trip delay timer, a remaining retransmission timer and a retransmission timer. When the base station sends new data, or sends retransmission data when there is no signaling error that the base station can detect, a round-trip delay timer will be started. If there is a signaling error that can be detected by the base station, the extended round-trip delay timer is started after the data is sent. After the round-trip delay timer overflows and receives NACK feedback or no feedback, or the extended round-trip delay timer overflows and receives NACK feedback, activate the retransmission remaining timer. During the operation of these three timers, the base station ...

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Abstract

The invention relates to the field of data communication, in particular to a discontinuous reception control method and device. The method includes: after receiving new data, the client equipment starts the corresponding hybrid automatic retransmission request process, adjusts the timers in the discontinuous reception mechanism and checks the received new data, if correct Then feed back the confirmation signaling to the base station equipment; if it is wrong, feed back the non-confirmation signaling to the base station equipment; after the base station equipment sends the data, it adjusts the retransmission process according to whether there is subsequent feedback from the user equipment and what kind of feedback ; After verifying the retransmitted data, the client device adjusts the retransmission process in various subsequent situations. The present invention realizes the synchronization between the base station equipment and the user terminal equipment under signaling errors by adding two new timers, thereby eliminating the impact of packet loss rate caused by partial signaling errors and the impact of asynchronous retransmission data on network resources. unnecessary waste.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a discontinuous reception control method and device. Background technique [0002] The era of 3G / 4G is coming to us in great strides, and the functions of terminals are becoming more and more powerful. These functions greatly enrich people's demand for entertainment, but at the same time, they also increase the power consumption of terminals. As the load of portable mobile terminals powered only by batteries is getting heavier, advanced energy-saving strategies and power management systems need to be developed urgently to ensure the use time and standby time of the terminals. [0003] At present, the communication field that researches the most in terms of energy saving is the wireless sensor network. Due to the particularity of wireless sensor networks, energy saving has become a key research point and main performance index of this type of network. Various energy-saving meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04L1/18
Inventor 田辉胡铮张平黄波徐海博
Owner BEIJING UNIV OF POSTS & TELECOMM