Flexible subband configuration and use method and device

1 . A method comprising:

determining, by a wireless communication node, a configuration for resources of a flexible subband in frequency domain in one carrier or cell; and

sending, by the wireless communication node to a wireless communication device, the configuration,

wherein the configuration indicates a time-frequency domain pattern of the resources of the flexible subband, the resources of the flexible subband comprising frequency domain resources in a plurality of symbols of at least one type of symbols, and

wherein a same resource in the flexible subband is usable for downlink transmission and is usable for uplink transmission, according to at least one of a condition or a scheduling.

2 . The method of claim 1 , comprising:

sending, by the wireless communication node to the wireless communication device, the configuration via at least one signaling, the configuration indicating a number of symbols occupied by the flexible subband, and positions of the symbols occupied by the flexible subband.

3 . The method of claim 1 , wherein the condition or the scheduling is a first condition or a first scheduling, wherein at least one of the resources of the flexible subband is:

not used for downlink transmission or uplink transmission, according to at least one of a second condition or a second scheduling.

4 . The method of claim 1 , comprising:

configuring, by the wireless communication node, flexible subband in a time domain slot, the time domain slot comprising one of:

a slot consisting of one or more downlink symbols,

a slot consisting of one or more uplink symbols,

a slot consisting of one or more flexible symbols,

a slot consisting of one or more downlink symbols and one or more uplink symbols, or

a slot comprising at least one of: a downlink symbol, an uplink symbol or a flexible symbol.

5 . The method of claim 1 , wherein the time-frequency domain pattern for the flexible subband, in a first period comprising at least one slot, is one of:

same as a time-frequency domain pattern for the flexible subband in a second period; or

different from the time-frequency domain pattern of the flexible subband resources in the second period.

6 . The method of claim 1 , comprising:

configuring, by the wireless communication node, a bandwidth of the flexible subband to be same as a bandwidth of one carrier or cell.

7 . The method of claim 1 , comprising:

configuring, by the wireless communication node, at least one of the flexible subband, to be positioned between at least one uplink resource on one side in frequency domain, and at least one downlink resource on another side in the frequency domain.

8 . The method of claim 1 , comprising:

configuring, by the wireless communication node, the flexible subband based on at least one of: a downlink symbol, an uplink symbol or a flexible symbol.

9 . The method of claim 1 , comprising:

configuring, by the wireless communication node, the flexible subband in consecutive or non-consecutive symbols of a slot.

10 . The method of claim 9 , comprising:

configuring, by the wireless communication node, the flexible subband to occupy a same frequency domain pattern in each of the consecutive or non-consecutive symbols.

11 . The method of claim 1 , comprising:

configuring, by the wireless communication node, the flexible subband to be in non-consecutive symbols, by skipping at least one symbols having at least one property.

12 . The method of claim 11 , wherein the at least one symbol having the at least one property comprises one of:

at least one symbol that is each an uplink symbol,

at least one symbol that is each a downlink symbol,

at least one symbol that is each a flexible symbol,

at least one symbol that is each an uplink or downlink symbol,

at least one symbol that is each a downlink or flexible symbol,

at least one symbol that is each an uplink or flexible symbol, or

at least one symbol that is reserved or used for one or more specific transmissions.

13 . The method of claim 1 , comprising:

configuring, by the wireless communication node, the flexible subband to be in all or a portion of: downlink symbols, uplink symbols, or flexible symbols, in a slot.

14 . The method of claim 1 , wherein the configuration is for a cell, and applies to wireless communication devices of the cell.

15 . The method of claim 1 , wherein the configuration is specific to the wireless communication device.

16 . The method of claim 15 , comprising:

determining, by the wireless communication node, another configuration for the resources of the flexible subband that are same as the resources of the flexible subband of the configuration, the another configuration being specific to another wireless communication device; and

sending, by the wireless communication node to the another wireless communication device, the another configuration.

17 . The method of claim 1 , comprising:

scheduling, by the wireless communication node, downlink transmission of a signal or channel that is common to one or more wireless communication devices, using the flexible subband.

18 . A method, comprising:

receiving, by a wireless communication device from a wireless communication node, a configuration for resources of a flexible subband in frequency domain in one carrier or cell,

wherein the configuration indicates a time-frequency domain pattern of the resources of the flexible subband, the resources of the flexible subband comprising frequency domain resources in a plurality of symbols of at least one type of symbols, and

wherein a same resource in the flexible subband is usable for downlink transmission and is usable for uplink transmission, according to at least one of a condition or a scheduling.

19 . A wireless communication node, comprising:

at least one processor configured to:

determine a configuration for resources of a flexible subband in frequency domain in one carrier or cell; and

send, via a transmitter to a wireless communication device, the configuration,

wherein the configuration indicates a time-frequency domain pattern of the resources of the flexible subband, the resources of the flexible subband comprising frequency domain resources in a plurality of symbols of at least one type of symbols, and

wherein a same resource in the flexible subband is usable for downlink transmission and is usable for uplink transmission, according to at least one of a condition or a scheduling.

20 . A wireless communication device, comprising:

at least one processor configured to:

receive, via a receiver from a wireless communication node, a configuration for resources of a flexible subband in frequency domain in one carrier or cell,

wherein the configuration indicates a time-frequency domain pattern of the resources of the flexible subband, the resources of the flexible subband comprising frequency domain resources in a plurality of symbols of at least one type of symbols, and

wherein a same resource in the flexible subband is usable for downlink transmission and is usable for uplink transmission, according to at least one of a condition or a scheduling.