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Frame structure generating method of TDD communication system

A generation method and technology for a communication system, which are applied in time division multiplexing systems, duplex signal operations, code division multiplexing systems, etc., can solve the problem of interference that has not been solved, and have not considered the requirements of UpPTS time slot arrangement. , defects, etc.

Inactive Publication Date: 2010-09-08
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The arrangement of three special time slots, DwPTS, GP, and UpPTS is a significant difference between the TD-SCDMA frame structure and the frame structure of other systems, especially the arrangement of the UpPTS time slot after the GP time after the downlink DwPTS is TD-SCDMA standard A feature, field practice shows that this way of arranging UpPTS is seriously flawed
Method 6) If the adjustment is simple, the downlink signal sent by the DwPTS time slot will not solve the interference problem of the UpPTS time slot at all.
[0009] In addition, the existing methods are all limited in thinking to solve the problem of the interference of the downlink signal sent by the DwPTS time slot to the UpPTS time slot, without considering the arrangement of the UpPTS time slot by the wireless digital repeater introduced in the TD-SCDMA system Require

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  • Frame structure generating method of TDD communication system
  • Frame structure generating method of TDD communication system
  • Frame structure generating method of TDD communication system

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Embodiment Construction

[0039] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0040] FIG. 3 shows a method of generating a frame structure for a time division duplex communication system according to the present invention. The frame structure generation method comprises the following steps:

[0041] Step S102, setting a first time slot as a downlink time slot for sending system broadcast information.

[0042] Step S104, following the first time slot, setting downlink pilot time slots and guard intervals.

[0043] Step S106, following the guard interval, setting one or more uplink time slots, and setting the uplink pilot time slot behind one of the uplink time slots.

[0044]The uplink pilot time slot may be set after the first uplink time slot in one or more uplink time slots. When there is more than one uplink time slot, the uplink pilot time slot can be set behind the second uplink time slot in the multiple uplink time slots. When t...

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Abstract

The invention discloses a generation method of a frame structure applied in a time division duplex communication system. The generation method of the frame structure comprises: a first timeslot is arranged as a downlink timeslot for sending system broadcast information and then a downlink pilot timeslot and a guard interval are arranged. One or multiple unlink timeslots are arranged following theguard interval and an uplink pilot timeslot is arranged behind of one of the unlink timeslots. One or multiple downlink timeslots are arranged behind one or multiple uplink timeslots and the uplink pilot timeslot. The invention eliminates the interference of the downlink signal sent by the downlink pilot timeslot to the uplink pilot timeslot theoretically, which is easy to be carried out. In addition, implementation needs little change.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the frame structure and time slot allocation of a time division duplex communication system. Background technique [0002] From the end of 1998 to the middle of 1999, according to the proposal discussed in the ITU (International Telecommunications Union, International Telecommunication Union), the TD-SCDMA (Time Division-Synchronization Code Division Multiple Access, Time Division Synchronization Code Division Multiple Access) system made its frame structure Several revisions were made to form the current frame structure, as shown in Figure 1. [0003] The current TD-SCDMA physical channel adopts a four-layer structure: system frame (superframe), radio frame, subframe, and time slot / code. The time slot is used to distinguish different user signals in the time domain, and has the characteristics of TDMA (Time Division Multiple Access, Time Division Multiple Access). The len...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/14H04J3/16H04J13/02
Inventor 刁心玺肖炼斌陈冠马志锋耿鹏
Owner ZTE CORP