User equipment driven sounding reference signal transmissions in different frequency locations

1 . A method for wireless communication, comprising:

receiving, by a wireless device, configuration information for a sounding reference signal from a base station in a first frequency region of an operating frequency band,

wherein the configuration information comprises information about a set of sounding reference signal resources for the wireless device to transmit the sounding reference signal, and

wherein each sounding reference signal resource is configured with frequency domain information;

determining, by the wireless device, one or more configured frequency positions for transmitting the sounding reference signal based on the frequency domain information of a sounding reference signal resource,

wherein the one or more configured frequency positions are within the first frequency region;

determining, by the wireless device, an additional frequency position within a second frequency region different from the first frequency region,

wherein the additional frequency position is located in a non-active bandwidth part (BWP); and

transmitting, by the wireless device, the sounding reference signal to the base station using the one or more configured frequency positions and the additional frequency position.

2 . The method of claim 1 , further comprising:

receiving, by the wireless device, reconfiguration information from the base station,

wherein the reconfiguration information indicates a switch from the first frequency region to the second frequency region; and

performing subsequent communication with the base station using the second frequency region.

3 . The method of claim 1 , wherein the first frequency region comprises an active bandwidth part.

4 . The method of claim 1 , wherein the one or more configured frequency positions comprise a frequency hopping position that is configured by the frequency domain information of the sounding reference signal resource, and wherein the additional frequency position is different from the frequency hopping position.

5 . The method of claim 1 , wherein the determining of the additional frequency position with the second frequency region is in response to the wireless device detecting a channel condition of the first frequency region being worse than a threshold.

6 . The method of claim 5 , wherein the threshold is predefined or is configured by the base station.

7 . The method of claim 1 , wherein transmitting of the sounding reference signal is periodic or aperiodic.

8 . A method for wireless communication, comprising:

transmitting, by a network node, configuration information for a sounding reference signal to a wireless device in a first frequency region of an operating frequency band,

wherein the configuration information comprises information about a set of sounding reference signal resources for the wireless device to transmit the sounding reference signal, and

wherein each sounding reference signal resource is configured with frequency domain information;

receiving, by the network node, the sounding reference signal from the wireless device using one or more configured frequency positions and an additional frequency position,

wherein the one or more configured frequency positions are determined based on the frequency domain information of the sounding reference signal resource,

wherein the additional frequency position is selected by the wireless device,

wherein the additional frequency position is located in a non-active bandwidth part (BWP), and

wherein the additional frequency position is within a second frequency region that is different from the first frequency region.

9 . The method of claim 8 , further comprising:

transmitting, by the network node, reconfiguration information to the wireless device based on the sounding reference signal,

wherein the reconfiguration information indicates a switch from the first frequency region to the second frequency region.

10 . The method of claim 8 , wherein the first frequency region comprises an active bandwidth part.

11 . The method of claim 8 , wherein the one or more configured frequency positions comprise a frequency hopping position that is configured by the frequency domain information of the sounding reference signal resource, and wherein the additional frequency position is different from the frequency hopping position.

12 . The method of claim 8 , wherein the sounding reference signal is transmitted in a periodic manner or in an aperiodic manner.

13 . The method of claim 8 , wherein the first frequency region and the second frequency region are in different operating bands.

14 . A device for wireless communication, comprising:

at least one hardware processor; and

at least one non-transitory memory storing instructions, which, when executed by the at least one hardware processor, cause the device to:

receive, from a network node, configuration information for a sounding reference signal in a first frequency region of an operating frequency band,

wherein the configuration information comprises information about a set of sounding reference signal resources for the device to transmit the sounding reference signal, and

wherein each sounding reference signal resource is configured with frequency domain information;

determine one or more configured frequency positions and an additional frequency position for transmitting the sounding reference signal,

wherein the one or more configured frequency positions are based on the frequency domain information of a sounding reference signal resource,

wherein the one or more configured frequency positions are within the first frequency region,

wherein the additional frequency position is located in a non-active bandwidth part (BWP), and

wherein the additional frequency position is within a second frequency region of the operating frequency band;

transmit the sounding reference signal to the network node using the one or more configured frequency positions and the additional frequency position.

15 . The device of claim 14 , wherein the at least one hardware processor is further configured to:

receive reconfiguration information for the sounding reference signal,

wherein the reconfiguration information comprises information about the first frequency region and the second frequency region.

16 . The device of claim 14 , wherein the first frequency region comprises an active bandwidth part.

17 . The device of claim 14 , wherein the one or more configured frequency positions comprise a frequency hopping position that is configured by the frequency domain information of the sounding reference signal resource, and wherein the additional frequency position is different from the frequency hopping position.

18 . The device of claim 14 , wherein the at least one hardware processor is configured to determine the additional frequency position with the second frequency region in response to detecting a channel condition of the first frequency region being worse than a threshold.

19 . The device of claim 18 , wherein the threshold is predefined or is configured by the network node.

20 . The device of claim 14 , wherein the at least one hardware processor is configured to transmit the sounding reference signal periodically or in an aperiodic manner.