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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: 2013-04-10
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 some carriers.

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

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

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

Embodiment 2

[0058] Embodiment 2, the UE discontinuously monitors the control channel on some or all carriers.

[0059] Embodiment 2 introduces the idea of ​​DRX, and introduces several possible implementation solutions as follows.

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

[0061] This includes at least two situations:

[0062] (1.1) The UE only discontinuously monitors the control channel on 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 a carrier, this method is the same as the DRX process in LTE, but the base station needs to specify in advance which component carrier the UE should monitor the control channel on.

[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 may configure two UEs (UE1 and UE2) to monit...

Embodiment 1

[0085] The configuration signaling generated by the configuration signaling generating unit 1101 includes a 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 invention relates to the technical field of mobile communication, 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 shared channels, the transmission of uplink and downlink data is generally controlled by the base station (eNB) scheduler. When the scheduler decides to schedule a certain user, it will notify the terminal on which resource to send or receive data through the control channel. . The terminal (UE) monitors the control channel, and when it detects its own scheduling information, completes data transmission (uplink) or reception (downlink) according to the instructions on the control channel. [0003] In the activated 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 analyzes each subframe containing its downlink ...

Claims

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Application Information

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