Data transmission method, apparatus and system, and computer storage medium

A data receiving method, comprising:

• determining a Transmission Time Interval (TTI) for processing a data block;
• receiving, by a terminal, the data block at the determined TTI as a unit from a base station, the TTI comprising N symbols, each of which has a cyclic prefix, wherein
• T
• min
• ≤
• T
• ≤
• T
• max
• ;
• T
• min
• =
• (
• 13
• ×
• N
• ×
• L
• )
• /
• 3
• ;
• T
• max
• =
• 200
• K
• ;
• N is a positive integer not smaller than 1 and not greater than └600/(13KL)┘;
• T represents the TTI, L represents an average value of cyclic prefixes of the N symbols, L≤6;
• └ ┘ represents a round down operation, K is a constant and corresponds to a processing capability of a sender and a processing capability of a receiver, 2<K≤7;
• a unit of each of the T, L, Tmin and Tmax is μs;
• wherein the step of determining the TTI for processing the data block comprises:
• determining K according to the processing capability of the receiver and the processing capability of the sender, wherein the sender is located in the base station, and the receiver is located in the terminal.

A data sending apparatus, comprising a first determining module and a sending module;

• wherein
• the first determining module is configured to determine a Transmission Time Interval (TTI) for processing a data block, and send the determined TTI to the sending module;
• and
• the sending module is configured to, upon receiving the TTI from the first determining module, send the data block at the TTI which is taken as a unit, wherein the TTI comprises N symbols, each of which has a cyclic prefix;
• wherein
• T
• min
• ≤
• T
• ≤
• T
• max
• ;
• T
• min
• =
• (
• 13
• ×
• N
• ×
• L
• )
• /
• 3
• ;
• T
• max
• =
• 200
• K
• ;
• N is a positive integer not smaller than 1 and not greater than └600/(13KL)┘;
• T represents the TTI, L represents an average value of cyclic prefixes of the N symbols, L≤6;
• └ ┘ represents a round down operation, K is a constant and corresponds to a processing capability of a sender and a processing capability of a receiver, and 2<K≤7;
• a unit of each of the T, L, Tmin and Tmax is μs;
• wherein the first determining module is further configured to determine K according to the processing capability of the sender and the processing capability of the receiver, wherein the sender is located in a base station, and the receiver is located in a terminal.

A data receiving apparatus, comprising a second determining module and a receiving module;

• wherein
• the second determining module is configured to determine a Transmission Time Interval (TTI) for processing a data block, and send the determined TTI to the receiving module;
• and
• the receiving module is configured to, upon receiving the TTI from the second determining module, receive the data block at the TTI which is taken as a unit, wherein the TTI comprises N symbols, each of which has a cyclic prefix;
• wherein
• T
• min
• ≤
• T
• ≤
• T
• max
• ;
• T
• min
• =
• (
• 13
• ×
• N
• ×
• L
• )
• /
• 3
• ;
• T
• max
• =
• 200
• K
• ;
• N is a positive integer not smaller than 1 and not greater than └600/(13KL)┘;
• T represents the TTI, L represents an average value of cyclic prefixes of the N symbols, L≤6;
• └ ┘ represents a round down operation, K is a constant and corresponds to a processing capability of a sender and a processing capability of a receiver, and 2<K≤7;
• a unit of each of the T, L, Tmin and Tmax is μs;
• wherein the second determining module is further configured to determine K according to the processing capability of the sender and the processing capability of the receiver, wherein the sender is located in a base station, and the receiver is located in a terminal.