The downlink signals will be audible in Europe on 145.800 MHz FM.
而且,在下行链路方向,双载波操作可与MIMO功能结合,实现高达84.4Mbit/s的数据率。
Additionally, in downlink direction dual carrier operation can be combined with the MIMO feature reaching data rates up to 84.4 Mbit/s.
S卩,下行链路发送可以占据与上行链路相同的信道(相同的发送频率),但是发生在不同的时刻。
That is, the down link transmission can occupy the same channel(same transmission frequency) as the up link transmission, but occur at different times.
GPP Release 8specifies further improvements for HSPA+ such as downlink dual carrier operation and the combination of MIMO and 64QAM modulation.
这些包括更宽的射频带宽、更多的MIMO空间流、下行链路多用户MIMO和高密度调制。
These include a wider RF bandwidth,more MIMO spatial streams, downlink multi-user MIMO and high density modulation.
上行链路和下行链路在时间上分开,即一个时间帧内的具体时隙被分别分配给上行链路和下行链路传输。
The uplink and downlink are separated in time, i.e. specific timeslots within one time frame are assigned separately to uplink and downlink transmission.
今天,我们还为企业提供运营商服务,亦为电视台提供卫星上行/下行链路服务。
Today, we also provide carrier services for businesses andsatellite up/downlink services for TV broadcasters.
为使自适应的数据速率工作,对称的上行链路和下行链路要求有足够的下行链路容量。
In order to make adaptive data rate work,symmetrical up link and down link is required with sufficient downlink capacity.
Additional ground downlink capacity for NEOSSat is expected to include reception agreements with the National Aeronautics and Space Administration(NASA) and, potentially, other international ground stations.
The upcoming release will deliver highly desirable enhancements, including far greater reliability andpeak data rates of 20 gigabits-per-second(Gbps) downlink and 10 Gbps uplink.
The downlink carrier is monitored to provide a Doppler signal using the LUT location as a reference, or highly stable 406 MHz calibration beacons at accurately known locations are used to update the ephemeris data.
PACSAT通信储存和转送通信系统(内存13兆,下行链路为9.6千位/秒).
PACSAT Communication store-and-forward communications system(13 Mb RAM,9.6 kbits/s downlink).
数据量和最大下行链路速度:数据量为每天461Gb,最大下行速度为每秒100Mb。
Data Volume and Maximum Downlink Rate: The data volume is 461 Gb per day and downlink is 100 Mb per second.
It is available in two variants: LTE-M/NB-IoT(up to 300 kbps downlink) for enhanced coverage and LTE Cat-4(up to 150Mbps downlink) for higher throughput.
同时,在密集的城市地区,最小实现的下行链路和上行5G数据速率分别为100Mbps和50Mbps。
Meanwhile, in dense urban areas, the minimum realised downlink and uplink 5G data rates should be 100 Mbps and 50 Mbps respectively.
在演示期间,这些公司实现了成功的下行链路和上行链路切换以及1.7Gbps的峰值速度。
During the demonstration, the companies achieved a successful downlink and uplink handover as well as a peak speed of 1.7 Gbps.
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