Method and device for scheduling resource between different tdd systems

A technology for scheduling resources and equipment, applied in user/terminal allocation, transmission systems, digital transmission systems, etc., can solve the problems of long waiting time and difficulty in meeting requirements, and achieve the effect of meeting compatibility requirements

Active Publication Date: 2014-07-30
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

from figure 1 It can be seen from the figure that according to the conventional TDD wireless system, the waiting time is relatively long, and it is difficult to meet the requirements of broadband

Method used

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  • Method and device for scheduling resource between different tdd systems
  • Method and device for scheduling resource between different tdd systems
  • Method and device for scheduling resource between different tdd systems

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Embodiment Construction

[0035] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] like figure 2 As shown, the device for resource scheduling between different TDD systems according to the embodiment of the present invention includes: a preamble generating unit 10 for generating a preamble; a resource allocation and scheduling unit 20 for pairing Service data from the first system and the second system are allocated and scheduled for resources; and a resource mapping unit 30 is configured to map the service data from the first system and the second system to corresponding resources. The specific operations and functions of each of the above units will be described in detail later.

[0037] According to an embodiment of the present invention, such as image 3 As shown, for a purely new TDD broadband system, that is, a TDD system with a small transmission latency, the above resource allocation and scheduling unit 20 wi...

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Abstract

A method and device are used for scheduling resources between a first TDD system and a second TDD system. A frame used by the first TDD system for communication includes a preamble sequence, an uplink subframe and a downlink subframe. The method includes the steps of: allocating time and frequency resources for the service data of the first TDD system and the second TDD system according to the service parameters of the first TDD system and the service parameters of the second TDD system; The coded and modulated data streams of the TDD system are mapped to the corresponding allocated time and frequency resources. The method and system can reduce the waiting time of service packets, control signaling and feedback information on the air interface, can meet the compatibility requirements of existing systems, and can be carried out between different systems according to their respective service loads. Resource Scheduling.

Description

technical field [0001] The invention relates to a time-frequency resource scheduling between wireless communication systems, which can meet the compatibility requirement of the existing TDD system while reducing the transmission waiting time of the new TDD system. Background technique [0002] In wireless communication systems, frequency division duplex (FDD) and time division duplex (TDD) are two main duplex modes. Compared with FDD system, TDD system has some unique advantages as follows: [0003] ■In the TDD system, the time allocation ratio of uplink and downlink can be flexibly adjusted to adapt to the asymmetric business of uplink and downlink; [0004] ■The TDD system does not require paired wireless bandwidth allocation like the FDD system, which simplifies the requirements for wireless spectrum allocation; [0005] ■In the TDD system, no matter in the base station or in the mobile station, the transceiver does not work at the same time, so the complexity of the sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/212
CPCH04W72/1215H04L5/0007H04L5/143H04W72/0446H04W72/044H04W72/12H04L5/14H04W72/04H04W72/0453H04B7/2656H04L5/0037
Inventor 李栋蔡立羽杨红卫
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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