Method, apparatus and system for configuring transmission time interval for supporting high speed mobile transmission

A transmission time interval and high-speed mobile technology, applied in the transmission system, baseband system components, network data management, etc., can solve the problems of complex control operation, long transmission time, poor network service quality, etc., to achieve reliable information transmission, shorten Transit time, satisfaction-enhancing effects

Inactive Publication Date: 2009-04-22
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

Then, this configuration method of adding pilot symbols in one TTI requires a large pilot symbol overhead, and the service information that can be transmitted in each TTI will be correspondingly reduced, so that the transmission time of a service is longer. That is, this TTI allocation method can only support services that require low mobile speed; and due to the long service transm

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  • Method, apparatus and system for configuring transmission time interval for supporting high speed mobile transmission
  • Method, apparatus and system for configuring transmission time interval for supporting high speed mobile transmission
  • Method, apparatus and system for configuring transmission time interval for supporting high speed mobile transmission

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Embodiment Construction

[0030] In order to make the purpose and technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0031] In the present invention, at least one TTI is preset in the TTI configuration process, and the length of each TTI is an integer multiple of the length of a subframe. When TTI needs to be configured for the mobile station, when the service of the mobile station requires a high moving speed , configure a longer TTI for the mobile station, and configure a shorter TTI for the mobile station when the service of the mobile station has lower requirements on the moving speed. In addition, the present invention also determines the pilot frequency density in the configured TTI to obtain all TTI information. The pilot density here refers to the number of pilot symbols included in one TTI.

[0032]It can be seen that the present invention extends the TTI to multiple l...

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Abstract

The invention discloses a transmission time interval (TTI) configuration method supporting high speed mobile transmission. The method comprises the following steps: setting at least one type of the TTI, wherein, the length of each type of the TTI is an integral multiple of that of a subframe; selecting a TTI corresponding to a mobile station from the set TTI, determining the amount of pilot frequency symbols in the TTI to get the TTI information of the mobile station, and then sending the TTI information to the mobile station. The invention further discloses a TTI configuration device supporting the high speed mobile transmission and a system thereof. The scheme of the invention can effectively ensure the reliability of information transmission in the case that the mobile station moves at a high speed.

Description

technical field [0001] The present invention relates to a time division-synchronous code division multiple access (TD-SCDMA) long-term evolution (LTE) system, in particular to a transmission time interval (TTI) configuration method supporting high-speed mobile transmission in a TD-SCDMA LTE system, devices and systems. Background technique [0002] The third generation mobile communication system (3G) adopts the code division multiple access (CDMA) mode, which can support multimedia services, and the system will have higher competitiveness in the next few years. However, in order to ensure that such competitiveness is maintained for a longer period of time, 3GPP has initiated a research project on Long Term Evolution (LTE) of 3G radio interface technology. Important parts of this research project include: reducing latency, increasing user data rates, improving system capacity and coverage, and reducing operator costs. [0003] TD-SCDMA is the only standard among the three ...

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Application Information

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IPC IPC(8): H04W48/08H04W8/02H04B1/707H04L25/02
Inventor 索士强缪德山唐海王可孙韶辉王映民
Owner DATANG MOBILE COMM EQUIP CO LTD
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