Methods and apparatus for communicating sounding reference signals with configurable frequency resource overlap
A method implemented by a communicating device includes receiving, by the communicating device from an access node, an indication indicating a size of overlapping frequency resources; transmitting, by the communicating device to the access node, a first sounding reference signal (SRS) of an SRS resource at a first plurality of frequency resources and at a first time; and transmitting, by the communicating device to the access node, a second SRS of the SRS resource at a second plurality of frequency resources and at a second time, wherein the second plurality of frequency resources and the first plurality of frequency resources partially overlap.
1 . A method comprising:
receiving, by a communicating device from an access node, an indication of a size of overlapping frequency resources in the frequency domain, the size of the overlapping frequency resources being at least one physical resource block (PRB);
transmitting, by the communicating device to the access node, a first sounding reference signal (SRS) of an SRS resource at a first plurality of frequency resources and at a first time; and
transmitting, by the communicating device to the access node, a second SRS of the SRS resource at a second plurality of frequency resources and at a second time, wherein the second plurality of frequency resources and the first plurality of frequency resources partially overlap in accordance with the size of the overlapping frequency resources.
2 . The method of claim 1 , the indication being received over radio resource control (RRC) signaling.
3 . The method of claim 1 , the indication being received in a medium access control (MAC) control element (CE) or in a downlink control information (DCI) message.
4 . The method of claim 1 , wherein the indication specifies the size of the overlapping frequency resources in the frequency domain in terms of number of resource blocks.
5 . A method comprising:
transmitting, by an access node to a communicating device, an indication of a size of overlapping frequency resources in the frequency domain, the size of the overlapping frequency resources being at least one physical resource block (PRB);
receiving, by the access node from the communicating device, a first sounding reference signal (SRS) of an SRS resource at a first plurality of frequency resources and at a first time; and
receiving, by the access node from the communicating device, a second SRS of the SRS resource at a second plurality of frequency resources and at a second time, wherein the second plurality of frequency resources and the first plurality of frequency resources partially overlap in accordance with the size of the overlapping frequency resources.
6 . The method of claim 5 , the indication being transmitted over radio resource control (RRC) signaling.
7 . The method of claim 5 , the indication being transmitted in a medium access control (MAC) control element (CE) or in a downlink control information (DCI) message.
8 . A user equipment (UE) comprising:
one or more processors; and
a non-transitory memory storage comprising instructions that, when executed by the one or more processors, cause the UE to perform operations including:
receiving, from an access node, an indication of a size of overlapping frequency resources in the frequency domain, the size of the overlapping frequency resources being at least one physical resource block (PRB);
transmitting, to the access node, a first sounding reference signal (SRS) of an SRS resource at a first plurality of frequency resources and at a first time; and
transmitting, to the access node, a second SRS of the SRS resource at a second plurality of frequency resources and at a second time, wherein the second plurality of frequency resources and the first plurality of frequency resources partially overlap in accordance with the size of the overlapping frequency resources.
9 . The UE of claim 8 , the indication being received over radio resource control (RRC) signaling.
10 . The UE of claim 8 , the indication being received in a medium access control (MAC) control element (CE) or in a downlink control information (DCI) message.
11 . An access node comprising:
one or more processors; and
a non-transitory memory storage comprising instructions that, when executed by the one or more processors, cause the access node to perform operations including:
transmitting, to a user equipment (UE), an indication of a size of overlapping frequency resources in the frequency domain, the size of the overlapping frequency resources being at least one physical resource block (PRB);
receiving, from the UE, a first sounding reference signal (SRS) of an SRS resource at a first plurality of frequency resources and at a first time; and
receiving, from the UE, a second SRS of the SRS resource at a second plurality of frequency resources and at a second time, wherein the second plurality of frequency resources and the first plurality of frequency resources partially overlap in accordance with the size of the overlapping frequency resources.
12 . The access node of claim 11 , the indication being transmitted prior to receiving the first SRS.
13 . The access node of claim 11 , the indication being transmitted over radio resource control (RRC) signaling or in a medium access control (MAC) control element (CE).
14 . The access node of claim 11 , the indication being transmitted in a downlink control information (DCI) message.
15 . The access node of claim 11 , the size of the overlapping frequency resources being an integer multiple of a PRB.