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A method, system and device for indicating a dynamic idle frequency

A technology of idle frequency and indicating device, applied in transmission systems, digital transmission systems, electrical components, etc.

Active Publication Date: 2017-11-21
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • A method, system and device for indicating a dynamic idle frequency
  • A method, system and device for indicating a dynamic idle frequency
  • A method, system and device for indicating a dynamic idle frequency

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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0051] In the present invention, in order to schedule and indicate the non-LTE standard bandwidth RBs on the auxiliary carrier, allocate them to the terminal. After determining the available idle frequency band, the TD-LTE network side uses the idle frequency band as the auxiliary carrier. The available idle frequency band includes other The frequency occupied by the narrowband system; then, the auxiliary carrier configuration information including the center frequency point and bandwidth of the auxiliary carrier is sent to the terminal through the main carrier, the center frequency point of the auxiliary carrier is the center frequency point of the available free frequency band, and the bandwidth of the auxiliary carrier is It is a non-LTE standard band...

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Abstract

Disclosed are an indication method, system and device for a dynamic idle frequency. After a TD-LTE network side determines a usable idle frequency band, the idle frequency band is used as an auxiliary carrier, wherein the idle frequency band includes frequencies occupied by other narrowband systems; then a main carrier sends auxiliary carrier configuration information, which includes an auxiliary carrier center frequency point and bandwidth, to a terminal, wherein the auxiliary carrier center frequency point is a center frequency point of the usable idle frequency band and the auxiliary carrier bandwidth is a non-LTE-standard bandwidth; and at last, auxiliary carrier resources are scheduled for the terminal and scheduling information is notified to the terminal through the main carrier, wherein the scheduling information is capable of indicating all resource blocks of the non-standard-bandwidth auxiliary carrier and narrowband interference signals in an auxiliary carrier frequency range can be avoided. The TD-LTE is capable of using an idle frequency band with a non-LTE-standard width as an auxiliary carrier and capable of scheduling and indicating all resource blocks capable of avoiding the narrowband interference signals on the auxiliary carrier so as to allocate to the terminal.

Description

technical field [0001] The present invention relates to the field of time-division long-term evolution system (TD-LTE), in particular to a dynamic idle frequency indication method, system and device. Background technique [0002] In the scenario where TD-LTE shares frequencies dynamically with other services or wireless communication systems, TD-LTE uses cognitive radio technology to use idle frequencies of other services or wireless communication systems. For multi-carrier TD-LTE, the dedicated frequency allocated to TD-LTE can be used as the main carrier, and the perceived idle frequency of other services or wireless communication systems can be used as the secondary carrier. When the main service or higher priority service system re-occupies the frequency of the auxiliary carrier, TD-LTE needs to stop the transmission on the auxiliary carrier in time, and switch the terminal on the auxiliary carrier to the main carrier. [0003] In TD-LTE, in order to reduce the impact o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/00H04W72/12
CPCH04L5/0094H04L5/0098
Inventor 陈星高有军王科钻
Owner CHINA MOBILE COMM GRP CO LTD
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