TDD或HFDD模式卫星通信的上行导频信号发送方法技术

本发明专利技术公开了一种TDD或HFDD模式卫星通信的上行导频信号发送方法，属于通信技术领域。在TDD模式下，当可用上行信号区≥Wmin时，在距离可用上行信号区起点2X的时刻开始到距离终点(2X+Wup)的时刻为止发送上行导频信号；当可用上行信号区＜Wmin且≥Wup+2X时，在起点到距离终点(2X+Wup)的发送窗口1中发送第一上行导频信号；并在距离起点2X到距离终点Wup的发送窗口2中发送第二上行导频信号；其中Wmin＝Wup+4X；在HFDD模式下，可用下行信号区≥Wmin时，在距离可用下行信号区起点2X的时刻开始到距离终点(2X+Wup)的时刻为止发送上行导频信号；可用下行信号区＜Wmin时，在可用下行信号区内或信号帧内发送上行导频信号。本发明专利技术可用于卫星通信系统。

Uplink pilot signal transmitting method for TDD or HFDD mode satellite communication

The invention discloses an uplink pilot signal transmitting method of TDD or HFDD mode satellite communication, belonging to the field of communication technology. In TDD mode, when the available uplink signal area greater than or equal to Wmin, at a distance of 2X uplink signal available starting point to the end point time distance (2X+Wup) of the moment for sending uplink pilot signal; when the available uplink signal area < Wmin and greater than or equal to Wup+2X, the distance to the end point in the starting point (2X +Wup) send window 1 send the first uplink pilot signal; and a pilot signal at a distance of 2X to the starting point Wup end point distance transmission window 2 send second uplink; Wmin = Wup+4X; in HFDD mode, Wmin downlink signal area is available, at a distance of 2X downlink signal available starting point to the end point time distance (2X+Wup) the time for sending uplink pilot signal; Wmin available downlink signal area <, available in the downlink signal area or transmits uplink signal frame pilot signal. The invention can be used in satellite communication systems.

【技术实现步骤摘要】

【技术保护点】
一种ＴＤＤ模式卫星通信的上行导频信号发送方法，其特征在于，信号帧的可用上行信号区不小于Ｗｍｉｎ时，终端在距离所述可用上行信号区起点２Ｘ的时刻开始到距离所述可用上行信号区终点（２Ｘ＋Ｗｕｐ）的时刻为止的发送窗口中，选择任意时刻发送上行导频信号；信号帧的可用上行信号区小于Ｗｍｉｎ且不小于Ｗｕｐ＋２Ｘ时，终端在所述可用上行信号区的起点到距离终点（２Ｘ＋Ｗｕｐ）的发送窗口１中，选择任意时刻发送第一上行导频信号；并在距离所述可用上行信号区的起点２Ｘ到距离终点Ｗｕｐ的发送窗口２中，选择任意时刻发送第二上行导频信号；其中Ｗｍｉｎ＝Ｗｕｐ＋４Ｘ，Ｗｕｐ表示上行导频时隙的宽度，２Ｘ表示最大传输时延差。

【技术特征摘要】
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【专利技术属性】
技术研发人员：吴建军，程宇新，任术波，徐晓燕，栾西，
申请(专利权)人：北京大学，
类型：发明
国别省市：11