Method and device in user equipment and base station for wireless communication

A method in a base station for wireless communication, comprising:

• monitoring a first radio signal in K sub-bands;
• determining that the first radio signal only needs to be received in K1 sub-band(s) out of the K sub-bands;
• receiving the first radio signal in the K1 sub-band(s);
• wherein the monitoring behavior is used to determine the K1 sub-band(s) from the K sub-bands;
• the first radio signal comprises K1 first sub-signal(s), and the K1 first sub-signal(s) is(are) transmitted in the K1 sub-band(s), respectively;
• each of the K1 first sub-signal(s) carries a first bit block, the first bit block comprises a positive integer number of bits, and a number of REs occupied by any one of the K1 first sub-signal(s) in a time-frequency domain is correlated with the K1;
• the K is a positive integer greater than 1, and the K1 is a positive integer not greater than the K.

A user equipment for wireless communication, comprising:

• a first receiver performing K channel listening in K sub-bands, respectively;
• a first processor determining that a first radio signal can only be transmitted in K1 sub-band(s) out of the K sub-bands;
• and
• a first transmitter transmitting the first radio signal in the K1 sub-band(s),
• wherein the K channel listening is used to determine the K1 sub-band(s) from the K sub-bands;
• the first radio signal comprises K1 first sub-signal(s), and the K1 first sub-signal(s) is(are) transmitted in the K1 sub-band(s), respectively;
• each of the K1 first sub-signal(s) carries a first bit block, the first bit block comprises a positive integer number of bits, and a number of REs occupied by any one of the K1 first sub-signal(s) in a time-frequency domain is correlated with the K1;
• the K is a positive integer greater than 1, and the K1 is a positive integer not greater than the K;
• K1 first-type value(s) is(are) used to determine a number(numbers) of REs occupied by the K1 first sub-signal(s) in the time-frequency domain, respectively, the K1 first-type value(s) is(are) linearly correlated with K1 first offset(s), respectively, and any one of the K1 first offset(s) is correlated with the K1;
• any one of the K1 first offset(s) is one of M candidate offsets with M being a positive integer greater than 1, or,
• the K1 first-type value(s) and K1 first-type reference value(s) are in one-to-one correspondence and any one of the K1 first-type value(s) is equal to a product of a corresponding first-type reference value and a corresponding first offset.

A base station for wireless communication, comprising:

• a second receiver monitoring a first radio signal in K sub-bands;
• a second processor determining that the first radio signal only needs to be received in K1 sub-band(s) out of the K sub-bands;
• a third receiver receiving the first radio signal in the K1 sub-band(s);
• wherein the monitoring behavior is used to determine the K1 sub-band(s) from the K sub-bands;
• the first radio signal comprises K1 first sub-signal(s), and the K1 first sub-signal(s) is(are) transmitted in the K1 sub-band(s), respectively;
• each of the K1 first sub-signal(s) carries a first bit block, the first bit block comprises a positive integer number of bits, and a number of REs occupied by any one of the K1 first sub-signal(s) in a time-frequency domain is correlated with the K1;
• the K is a positive integer greater than 1, and the K1 is a positive integer not greater than the K.