英语释义

1. a communications channel for receiving transmissions from a spacecraft also such transmissions

2. to transmit (data) from a spacecraft or satellite to a receiver on earth

片语

CDMA downlink码分多址下行链路

Downlink Frequency下行频率

Synchronous Downlink下行同步码

satellite downlink[航]

downlink facilities下行设施

downlink communication下行通讯

Downlink level下

Downlink Blood下行气血

downlink scheduling下行调度

英汉例句

• aim to improve the performance of layered space-time coding (lstc) for wideband downlink transmission.

  目的提高无线宽带下行传输中分层空时编码的性能。

• a downlink power allocation scheme was developed to improve the spectral efficiency of distributed wireless communication systems (dwcs).

  为了提高分布式无线通信系统（dwcs）的频谱效率，提出了一种下行功率分配算法。

• figures 2 - 8 present the normalised downlink gains compared to the reference case mentioned above.

  图2 –8呈现的是与上述涉及到的参考实例相比之下的标準下行链路增益。

• nasa television features live mission events, daily status news conferences and 24-hour commentary. for nasa tv streaming video, downlink and schedule information, visit

  nasa电视台的报道包括任务直播、每日任务进展新闻发布会和24小时评论。

• a novel dynamic configuration scheme for discontinuous reception(drx) cycle based on the delay requirement of service is proposed for the lte downlink system.

  针对lte系统的下行非连续接收（drx）机制，提出了一种基于业务时延要求的动态非连续接收周期配置算法。

• a new transmission scheme, which combines transmit preprocessing with multiuser mimo downlink system over frequency-selective fading channel is proposed.

  提出了一种适用于频率选择性衰落信道，新的下行多用户mimo系统预处理传输方案。

• base station can still use the downlink channel to stay connected with mobile phones, or even to send incoming signal.

  基站仍然可以使用下行信道与手机保持连接，甚至发送呼入信号。

• it is one of the key techniques in the high speed downlink packet access (hsdpa) and high speed uplink packet access (hsupa).

  混合自动重传请求是高速下行分组接入（hsdpa）和高速上行分组接入（hsupa）中的关键技术。

• dft is used to estimate the covariance matrix of downlink channel of the path, not calculating doa.

  在不求出doa的情况下，采用离散傅里叶变换来估计该路径下行信道协方差矩阵。

• the paging procedure shall move the mm state to ready to allow the sgsn to forward downlink data to the radio resource.

  寻呼的流程应将mm状态迁移到ready，来允许sgsn来转发下行数据到这个空口的资源。

• downlink beamforming can be used to limit strong interference induced by high data rate users, thereby improve the system performance.

  下行波束成形能用来限制由于高速率数据用户引起的干扰，也能改善系统性能。

• in one embodiment, the base station determines whether there is downlink channel data to transmit to a mobile station .

  在一个实施例中，基站确定是否存在要发送到移动台的下行链路信道数据。

• a power control algorithm for the downlink of a distributed antenna wireless communication system is proposed by the use of the average channel gain matrix.

  提出了一种基于平均信道增益矩阵的分布式天线无线通信系统下行功率控制算法。

• although sprint dropped the most calls, it had the highest call quality on the uplink (outbound calls), while at&t had the best downlink call quality (inbound calls).

  虽然sprint的掉话率最高，但是它的上行键路（网外呼叫）通话质量最高，at&t的下行键路（网内呼叫）通话质量最高。

• what we concern is how to regulate data and acks ratio of the uplink, so that downlink and uplink can guarantee bandwidth for data packet sending at the same time.

  如何在数据包和确认包共享同一个上行信道的情况下，能够既保证上行信道上数据包传输带宽，又不使下行信道上的数据包传输受到抑制是笔者所关心的问题。

• when a gprs ms in ready state uses drx, drx has to be considered when assigning a packet data channel for downlink transfer.

  当一个ready状态的ms使用了drx，drx将在为下行数据传递分配数据包信道的时候被考虑进去。

• the open loop transmit diversity scheme, named as sttd, and two feedback close loop transmit diversity schemas in downlink channel communication was defined in wcdma standard.

  wcdma标準在下行信道传输中采用了称作sttd的开环发射分集方案和两种反馈模式的闭环发射分集方案。

• this ie indicates the maximum and guaranteed bit rates of a gbr bearer for downlink and uplink.

  该ie指示上行链路和下行链路的最大保证速率。

• for nasa tv streaming video, downlink and further information, visit

  想要进一步了解nasa电视视频信息，请访问

• its function is to route a downlink by means of the most efficient air-ground subnetwork .

  它的职能是路线下行的手段最有效的空地子网。

• what is more worrying is that property prices are likely to immediately peaked and entered the downlink channel.

  更令人担忧的是，物业价格有可能达到顶峰，并立即进入了下行通道。

• the applicability of radio bearer tests is dependent on the ue uplink and downlink radio access capabilities and ue support telecommunication and bearer services.

  无线承载测试的应用取决于ue上行、下行无线接入能力以及ue支持的电信业务和承载业务。