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Excitation and deexcitation component carrier wave

A component carrier and deactivation technology, applied in advanced technology, electrical components, power management, etc., can solve the problem of how the base station sends control signaling and the user terminal is not clearly defined, and achieve the effect of saving energy consumption

Active Publication Date: 2014-03-05
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But specifically, how the base station sends the control signaling to the user terminal is not clearly defined

Method used

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  • Excitation and deexcitation component carrier wave
  • Excitation and deexcitation component carrier wave
  • Excitation and deexcitation component carrier wave

Examples

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Embodiment Construction

[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] figure 1 A schematic diagram of an application scenario of a multi-carrier wireless communication network 100 according to a specific embodiment of the present invention is shown. Those of ordinary skill in the art should understand that, for the sake of brevity, figure 1 The wireless communication network 100 in the figure only shows the base station 110 and the user terminal 120, the actual wireless communication network includes a plurality of base stations, and each base station manages a plurality of user terminals.

[0029] figure 2 It shows a flowchart of a method for transmitting at least one uplink component carrier activation and deactivation control command in a base station of a multi-carrier wireless communication network according to a specific embodiment of the present invention, which is combined below figure 1 , the...

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Abstract

The invention provides a technical scheme for transmitting upstream and / or downstream component carrier wave excitation / deexcitation commands by using measurement and control (MAC) signaling. Firstly, a base station distributes one locale identifier (LCID) for at least one upstream component carrier wave excitation and deexcitation control command, then, the base station uses the distributed LCID as a part of the head of the measurement and control cell (MAC CE) and uses bit map information for mapping the excitation and deexcitation information of the upstream component carrier waves as a part of the content of the MAC CE, and the MAC CE is generated for carrying the excitation and deexcitation control commands.

Description

technical field [0001] The invention relates to the transmission of component carrier activation and deactivation control commands in an LTE-A wireless communication network. Background technique [0002] In LTE-A, the bandwidth of the wireless communication system can reach 100M to meet the requirements of high-speed data transmission. In order to maintain backward compatibility with LTE, the 100M bandwidth of LTE-A is divided into multiple component carriers, where the maximum bandwidth of each component carrier can reach 20MHz. [0003] Due to the existence of multiple carriers, even if the base station does not schedule a certain uplink component carrier, the user terminal will still periodically send an uplink sounding reference signal (SRS) on the component carrier, which will bring unnecessary energy waste to the user terminal. [0004] In LTE-A, the user terminal turns off or turns on the radio frequency front-end corresponding to an uplink component carrier accordi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W52/02H04W72/04H04W72/12
CPCY02D30/70
Inventor 杨涛
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD