Packet Uplink Ack/Nack，Packet Downlink Ack/Nack属于那一层的信令：（）

[单选题]以下那个测量值不是在Packet Downlink Ack/Nack的信令内传递的：（）A . C_VALUEB . Rx_QualC . I_LEVELD . GAMMA_CH

[名词解释] packet包

[试题]请简述TD-LTE中的ACK/NACK捆绑模式(ACK/NACK Bundling)和ACK/NACK复用模式(ACK/NACK Mutiplexing)之间的差别。

[单选题]Packet switching is a method of slicing(71) messages into parcels called "packets," sending the packets along different communication(72) as they become available, and then reassembling the packets(73) they arrive at their destination. Prior to the

[单选题]Packet-switching wireless networks are preferable(66)when transmissions are(67)bemuse of the way charges are(68)per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers are

[单选题]Packet-switching wireless networks are preferable(41)when transmissions are(42)because of the way charges are(43)per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers ar

[单选题]LTE下行ACK/NACK信令BER目标中NACK→ACK错误的目标质量为（）A . 10-1，B . 10-2，C . 10-3，D . 10-4.

[单选题]LTE下行ACK/NACK信令BER目标中ACK→NACK错误的目标质量为（）A . 10-1，B . 10-2，C . 10-3，D . 10-4.

[单选题] When a large packet wants to travel through a network whose MTU is too small, one solution is to allow routers to break up the packet into （）. （）A. messages B. frames C. fragments D. bits

[单选题]LSAck报文（Link State Acknowledgment Packet）是对哪些OSPF报文的确认。（）A . HELLOB . DDC . LSRD . LSUE . LSAck