Communication method and communication apparatus

Abstract

A communication method includes: generating a first radio frame by a communication apparatus, a time domain length of first symbol in the first radio frame exceeding any time domain length of any one of remaining symbols in the first radio frame; and transmitting the first radio frame by the communication apparatus. According to the communication method, communication can be achieved between communication apparatuses in a wireless communication system.

What is claimed is: 
     
         1 . A communication method, comprising:
 generating a first radio frame by a communication apparatus, a time domain length of first symbol in the first radio frame exceeding any time domain length of any one of remaining symbols in the first radio frame; and   transmitting the first radio frame by the communication apparatus;   wherein the method further comprises:   transmitting at least a second radio frame by the communication apparatus, all symbols in the second radio frame having a same time domain length.   
     
     
         2 . The communication method according to  claim 1 , wherein a sequence carried by the first symbol is a known sequence of the communication apparatus. 
     
     
         3 . The communication method according to  claim 1 , wherein the time domain length of the first symbol is 1/(15 kHz), and the time domain length of any one of the remaining symbols is 1/(15 kHz)/2 k , wherein k is a positive integer. 
     
     
         4 . The communication method according to  claim 1 , further comprising:
 generating a third radio frame by the communication apparatus, all symbols in the third radio frame having a same time domain length, sequences carried by first M symbols in the third radio frame being known sequences of the communication apparatus, wherein M is a positive integer; and   transmitting the third radio frame by the communication apparatus.   
     
     
         5 . The communication method according to  claim 4 , wherein a total time domain length of the first M symbols is 1/(15 kHz). 
     
     
         6 . The communication method according to  claim 4 , wherein a time domain length of each symbol in the third radio frame is 1/(15 kHz)/2 k . 
     
     
         7 . The communication method according to  claim 4 , wherein the communication apparatus is a base station; and
 the communication method further comprises:   transmitting, by the communication apparatus, indication information indicating that the communication apparatus is to transmit the third radio frame, before transmitting the third radio frame.   
     
     
         8 . The communication method according to  claim 1 , wherein the communication apparatus is a base station; and
 the communication method further comprises:   transmitting, by the communication apparatus, indication information indicating that the communication apparatus is to transmit the first radio frame, before transmitting the first radio frame.   
     
     
         9 . The communication method according to  claim 4 , wherein the communication apparatus is a terminal apparatus; and
 the communication method further comprises:   receiving, by the communication apparatus, indication information, transmitted by a base station, indicating that the communication apparatus is required to transmit the third radio frame to the base station, before transmitting the third radio frame.   
     
     
         10 . The communication method according to  claim 1 , wherein the communication apparatus is a terminal apparatus; and
 the communication method further comprises:   receiving, by the communication apparatus, indication information, transmitted by a base station, indicating that the communication apparatus is required to transmit the first radio frame to the base station, before transmitting the first radio frame.   
     
     
         11 . A communication apparatus, comprising:
 a processor, configured to generate a first radio frame, a time domain length of first symbol in the first radio frame exceeding any time domain length of any one of remaining symbols in the first radio frame; and   a transceiver, configured to transmit the first radio frame,   wherein the transceiver is further configured to transmit at least a second radio frame, all symbols in the second radio frame having a same time domain length.   
     
     
         12 . The communication apparatus according to  claim 11 , wherein a sequence carried by the first symbol is a known sequence of the communication apparatus. 
     
     
         13 . The communication apparatus according to  claim 11 , wherein the time domain length of the first symbol is 1/(15 kHz), and the time domain length of any one of the remaining symbols is 1/(15 kHz)/2 k , wherein k is a positive integer. 
     
     
         14 . The communication apparatus according to  claim 11 , wherein the processor is further configured to generate a third radio frame, all symbols in the third radio frame having a same time domain length, sequences carried by first M symbols in the third radio frame being known sequences of the communication apparatus, wherein M is a positive integer; and
 the transceiver is further configured to transmit the third radio frame.   
     
     
         15 . The communication apparatus according to  claim 14 , wherein a total time domain length of the first M symbols is 1/(15 kHz). 
     
     
         16 . The communication apparatus according to  claim 14 , wherein a time domain length of each symbol in the third radio frame is 1/(15 kHz)/2 k . 
     
     
         17 . The communication apparatus according to  claim 14 , wherein the communication apparatus is a base station; and
 the transceiver is further configured to transmit indication information indicating that the communication apparatus is to transmit the third radio frame, before transmitting the third radio frame.   
     
     
         18 . The communication apparatus according to  claim 11 , wherein the communication apparatus is a base station; and
 the transceiver is further configured to transmit indication information indicating that the communication apparatus is to transmit the first radio frame, before transmitting the first radio frame.   
     
     
         19 . The communication apparatus according to  claim 14 , wherein the communication apparatus is a terminal apparatus; and
 the transceiver is further configured to receive indication information, transmitted by a base station, indicating that the communication apparatus is required to transmit the third radio frame to the base station, before transmitting the third radio frame.   
     
     
         20 . The communication apparatus according to  claim 11 , wherein a communication system provided with the communication apparatus supports a plurality of different numerologies, and the different numerologies correspond to different radio frame structures, respectively.