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Uplink and downlink transmission method, base station and user equipment

A transmission method and technology for a base station, which are applied in the fields of base stations and user equipment, downlink transmission methods, uplink transmission methods, and uplink and downlink transmission methods, can solve the problems affecting the overall performance of the system, limit the application scenarios of the TDD system, and waste resources, and achieve sufficient The effect of utilizing network resources and improving the flexibility of CP configuration

Active Publication Date: 2010-06-09
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, when the extended CP is used for the downlink transmission, the conventional CP can be selected for the uplink transmission according to the specific situation, but there is no configuration in the prior art for the case of using different CPs for the uplink and downlink transmission, so the existing TDD system It is still unable to support uplink and downlink transmission using different CP configurations, which not only limits the application scenarios of the TDD system, but also affects the overall performance of the system. cause unnecessary waste of resources

Method used

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  • Uplink and downlink transmission method, base station and user equipment
  • Uplink and downlink transmission method, base station and user equipment
  • Uplink and downlink transmission method, base station and user equipment

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Embodiment Construction

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

[0051] figure 2 It is an exemplary flow chart of the uplink and downlink transmission method in the embodiment of the present invention. Such as figure 2 As shown, the process includes the following steps:

[0052] Step 201, on the basis of the existing CP type and the corresponding configuration relationship, set the mixed CP type when different cyclic prefix CPs are used for uplink and downlink transmission, and corresponding to the mixed CP type, set the DwPTS, GP and UpPTS in the special subframe. Various configuration relationships of a time slot.

[0053] In this embodiment, in order to support the case where the extended CP is used for downlink transmission and the conventional CP is used for uplink transmission, corresponding to the mi...

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Abstract

The invention discloses an uplink and downlink transmission method, a base station and user equipment. The uplink and downlink transmission method comprises the following steps of: setting a mixed CP type when the uplink and downlink transmission uses different cyclic prefixes (CP) on the basis of the traditional CP type and a corresponding configuration relation and setting various configurationrelations of three time slots of DwPTS, GP and UpPTS in a special subframe corresponding to the mixed CP type; confirming the CP type and a configuration relation of the special subframe corresponding to the CP type for each cell according to the requirement and carrying out configuration on the DwPTS in the downlink transmission of the current cell and the UpPTS in the uplink transmission according to the confirmed CP type and the configuration relation. The technical scheme can support the uplink and downlink transmission using different CPs.

Description

technical field [0001] The present invention relates to a Time Division Duplex (TDD) Long Term Evolution (LTE) system, in particular to an uplink and downlink transmission method, an uplink transmission method, a downlink transmission method, a base station and a user equipment (UE). Background technique [0002] In the Long Term Evolution (LTE) system of the third generation mobile communication system (3G) wireless interface technology, two types of frame structures are supported: the first type of frame structure is suitable for frequency division duplex (FDD) and TDD systems, The frame length is 10ms, which is composed of 20 time slots with a length of 0.5ms, and every two consecutive time slots are defined as a subframe; the second type of frame structure is only applicable to the TDD system, and is more similar to the time division-synchronization code division Address access (TD-SCDMA) system compatible, such as figure 1 As shown, the frame length is also 10ms, and e...

Claims

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Application Information

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IPC IPC(8): H04B7/26
Inventor 肖国军林亚男丁昱
Owner DATANG MOBILE COMM EQUIP CO LTD
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