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Control information configuring method for time division system, method and device for received frame processing

A technology for controlling information and information patterns, applied in transmission systems, multi-frequency code systems, radio transmission systems, etc.

Active Publication Date: 2009-04-01
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But to a certain extent, CDMA single frequency network has improved the processing ability of its receiver

Method used

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  • Control information configuring method for time division system, method and device for received frame processing
  • Control information configuring method for time division system, method and device for received frame processing
  • Control information configuring method for time division system, method and device for received frame processing

Examples

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Embodiment Construction

[0058] for image 3The subframe structure of the TD-SCDMA dedicated carrier shown. The system will selectively send control information at some TTIs. In order for the receiver to flexibly perform different processing for different control information modes and realize TTI synchronization, it is necessary to design a simple and easy method to instruct the receiving device.

[0059] still with image 3 The subframe structure of the shown TD-SCDMA dedicated carrier is described as an example, but those skilled in the art know that this is just an example of the TD-SCDMA subframe structure, and the present invention is not limited to this specific example, but can be Extended to other frame structures including special time slots (with downlink control information).

[0060] subframe 201 0 As an example, its conventional dedicated carrier slot 302 0 、302 2 -302 7 All have the same structure, including a reference symbol part and an information data part. A reference symbol...

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Abstract

The invention relates to a time-division system control information mode configuration method, a receiving frame processing method and equipment, wherein, the configuration method comprises: a reference sequence is used as the basic code of the reference symbol in at least one conventional time slot of each subframe in a TTI, wherein, the reference sequence is selected from a plurality of cyclic shift sequences with different cyclic shift times of the same basic sequence; the plurality of cyclic shift sequences can be mapped as different levels; the reference sequence of each subframe in the TTI is mapped in an one-to-one way to each level which forms a level sequence that marks the control information mode of a following L TTIs of the TTI, wherein, L is a positive integer. The invention causes the receiving equipment to flexibly process the receiving signals, avoids additional energy loss and processing delay, and conducts necessary TTI synchronization.

Description

technical field [0001] The invention relates to the technical field of time-division communication systems, in particular to a method for configuring control information patterns in a time-division system, a method and equipment for processing received frames with control information patterns at a receiving end. Background technique [0002] In traditional broadcasting systems, such as analog TV broadcasting, in order to expand coverage, adjacent transmitting stations use different frequencies to avoid mutual interference, and the same frequency must be reused at a certain distance, which is the Multi-Frequency Network , MFN) way. In this way, one signal needs to occupy several times the frequency bandwidth, consuming precious spectrum resources. [0003] With the increasing shortage of spectrum resources and the development of signal processing technology, the networking method of single frequency network has become a hot spot. The so-called Single Frequency Network (SFN)...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04B7/216
CPCY02D30/70
Inventor 吴涛师延山石璟
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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