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Method and device for monitoring control channel in multi-carrier system

A technology of multi-carrier system and control channel, applied in access restriction, wireless communication, advanced technology and other directions, can solve the problem of how to monitor control channel in multi-carrier system without a clear plan, and achieve the effect of improving power saving performance

Active Publication Date: 2010-09-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and device for monitoring the control channel in a multi-carrier system to solve the problem that there is no clear solution for how to monitor the control channel in the current multi-carrier system

Method used

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  • Method and device for monitoring control channel in multi-carrier system
  • Method and device for monitoring control channel in multi-carrier system
  • Method and device for monitoring control channel in multi-carrier system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: The UE continuously monitors the control channel only on part of the carriers.

[0055] see Image 6 , which is a schematic diagram of Embodiment 1. Image 6 , the UE only continuously monitors the control channel on carrier 2 for possible scheduling information. When this configuration scheme is adopted, when the base station needs to schedule the UE, the control information must be sent on the component carrier monitored by the UE to be detected by the UE.

[0056] In Embodiment 1, the base station sends the configuration signaling including the component carrier index to the UE, indicating which carrier the UE monitors the control channel on. For example, for Image 6 In the case shown, the configuration signaling sent by the base station to the UE includes "the index of carrier 2". After receiving the configuration signaling, the UE continuously monitors the control channel on carrier 2.

[0057] It should be noted that, for Embodiment 1, different...

Embodiment 2

[0058] In the second embodiment, the UE discontinuously monitors the control channel on some or all of the carriers.

[0059] The second embodiment introduces the DRX idea, and several possible implementation schemes are introduced as follows.

[0060] (1) The UE discontinuously monitors the control channel on some carriers.

[0061] This includes at least two cases:

[0062] (1.1) The UE discontinuously monitors the control channel on only one carrier.

[0063] see Figure 7 , the UE only discontinuously monitors the control channel on carrier 2 to obtain possible scheduling information. From the perspective of one carrier, this method is the same as the DRX process in LTE, but the base station needs to pre-designate on which component carrier the UE monitors the control channel.

[0064] Similar to Embodiment 1, in this solution, different UEs can be configured to monitor different carriers, for example, for Figure 7 , the base station can configure two UEs (UE1 and UE...

Embodiment 1

[0086] The configuration signaling generated by the configuration signaling generating unit 1101 includes the component carrier index; the configuration signaling sending unit 1102 instructs the terminal to continuously monitor the control channel on the carrier corresponding to the component carrier index.

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Abstract

The invention discloses a method and a device for monitoring a control channel in a multi-carrier system, wherein in the method, a base station sends a configuration signaling to direct a terminal to continuously monitor the control channel on partial carriers or discontinuously monitor the control channel on partial or all carriers; and the terminal monitors the control channel according to the configuration signaling of the base station. The invention proposes a DRX (Discontinuous Reception) process of a frequency domain by aiming at the multi-carrier system, and can improve the electricitysaving performance of the system.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and in particular, to a method and device for monitoring a control channel in a multi-carrier system. Background technique [0002] In a mobile communication system based on a shared channel, the transmission of uplink and downlink data is generally controlled by the base station (eNB) scheduler. When the scheduler determines to schedule a user, it will notify the terminal on which resources to send or receive data through the control channel. . The terminal (UE) monitors the control channel, and when detecting scheduling information including itself, completes data transmission (uplink) or data reception (downlink) according to the instructions on the control channel. [0003] In the active state, since the terminal is not sure when the eNB will schedule it, a common working mode is that the terminal continuously monitors the control channel and parses each subframe contain...

Claims

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Application Information

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IPC IPC(8): H04W48/12H04W72/12
CPCY02B60/50Y02D30/70
Inventor 李国庆高卓谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD