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Indication method, system and device for dynamic idle frequency

A technology of idle frequency and indication, applied in transmission system, digital transmission system, error prevention, etc.

Active Publication Date: 2015-02-11
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Indication method, system and device for dynamic idle frequency
  • Indication method, system and device for dynamic idle frequency
  • Indication method, system and device for dynamic idle frequency

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Embodiment Construction

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

[0051] In order to schedule and indicate the non-LTE standard bandwidth RB on the secondary carrier, the present invention allocates it to the terminal. After determining the available free frequency band, the TD-LTE network side uses the free frequency band as the secondary carrier. The available free frequency band includes other The frequency occupied by the narrowband system; then, the secondary carrier configuration information including the central frequency and bandwidth of the secondary carrier is sent to the terminal through the primary carrier. The secondary carrier central frequency is the central frequency of the available free frequency band, and the secondary carrier bandwidth It is a non-LTE standard bandwidth; finally, the secondary ...

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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-sharing long-term evolution (TD-LTE) systems, and in particular to a method, system and device for indicating dynamic idle frequencies. Background technique [0002] In scenarios where TD-LTE dynamically shares frequencies 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 frequency allocated for TD-LTE can be used as the primary carrier, and other services or idle frequencies of the wireless communication system can be used as the secondary carrier. When the primary service or higher priority service system reoccupy the frequency of the secondary carrier, TD-LTE needs to stop the transmission on the secondary carrier in time, and switch the terminal on the secondary carrier to the primary carrier. [0003] In TD-LTE, in order to reduce the impact of dynamic fr...

Claims

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Application Information

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Patent Type & Authority Applications(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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