BANDWIDTH PART OPERATION AND DOWNLINK OR UPLINK POSITIONING REFERENCE SIGNAL SCHEME
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a positioning reference signal configuration of a base station. The UE may determine, based on the positioning reference signal configuration, a reference point within a carrier bandwidth of a component carrier and a frequency domain allocation for a positioning reference signal relative to the reference point. The UE may transmit the positioning reference signal or measure the positioning reference signal based on the frequency domain allocation.
1 . A user equipment (UE), comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and operable to execute the code to cause the UE to:
receive, via a first signaling, an indication of a positioning reference signal configuration indicating one or more resources for transmission of an uplink positioning reference signal;
receive, via a second signaling, an indication of a measurement gap during which the UE is not expected to transmit or receive signaling other than the uplink positioning reference signal; and
transmit the uplink positioning reference signal during the measurement gap based at least in part on the positioning reference signal configuration and the measurement gap.
2 . The UE of claim 1 , wherein the second signaling is based at least in part on a capability of the UE.
3 . The UE of claim 1 , wherein the one or more processors are further operable to execute the code to cause the UE to:
transmit the uplink positioning reference signal across a plurality of resources of the one or more resources in accordance with a frequency comb offset.
4 . The UE of claim 1 , wherein the one or more processors are further operable to execute the code to cause the UE to:
transmit the uplink positioning reference signal using frequency domain staggering.
5 . The UE of claim 1 , wherein the one or more processors are further operable to execute the code to cause the UE to:
transmit the uplink positioning reference signal during at least a first slot and a second slot in accordance with an inter-slot transmission.
6 . The UE of claim 1 , wherein, to transmit the uplink positioning reference signal, the one or more processors are operable to execute the code to cause the UE to:
perform a sweep transmission of the uplink positioning reference signal across a plurality of sub-bands of the one or more resources.
7 . The UE of claim 1 , wherein the second signaling is based at least in part on frequency hopping being supported by the UE.
8 . The UE of claim 7 , wherein the one or more processors are further operable to execute the code to cause the UE to:
transmit the uplink positioning reference signal using frequency hopping.
9 . The UE of claim 1 , wherein the uplink positioning reference signal comprises a sounding reference signal.
10 . The UE of claim 1 , wherein the uplink positioning reference signal has a uniform density in a frequency domain.
11 . A method by a user equipment (UE), comprising:
receiving, via a first signaling, an indication of a positioning reference signal configuration indicating one or more resources for transmission of an uplink positioning reference signal;
receiving, via a second signaling, an indication of a measurement gap during which the UE is not expected to transmit or receive signaling other than the uplink positioning reference signal; and
transmitting the uplink positioning reference signal during the measurement gap based at least in part on the positioning reference signal configuration and the measurement gap.
12 . The method of claim 11 , wherein the second signaling is based at least in part on a capability of the UE.
13 . The method of claim 11 , further comprising:
transmitting the uplink positioning reference signal across a plurality of resources of the one or more resources in accordance with a frequency comb offset.
14 . The method of claim 11 , further comprising:
transmitting the uplink positioning reference signal using frequency domain staggering.
15 . The method of claim 11 , further comprising:
transmitting the uplink positioning reference signal during at least a first slot and a second slot in accordance with an inter-slot transmission.
16 . The method of claim 11 , wherein transmitting the uplink positioning reference signal comprises:
performing a sweep transmission of the uplink positioning reference signal across a plurality of sub-bands of the one or more resources.
17 . The method of claim 11 , wherein the second signaling is based at least in part on frequency hopping being supported by the UE.
18 . The method of claim 17 , further comprising:
transmitting the uplink positioning reference signal using frequency hopping.
19 . The method of claim 11 , wherein the uplink positioning reference signal comprises a sounding reference signal.
20 . A non-transitory computer-readable medium storing code, the code comprising instructions executable by one or more processors to:
receive, via a first signaling, an indication of a positioning reference signal configuration for a user equipment (UE) indicating one or more resources for transmission of an uplink positioning reference signal;
receive, via a second signaling, an indication of a measurement gap during which the UE is not expected to transmit or receive signaling other than the uplink positioning reference signal; and
transmit the uplink positioning reference signal during the measurement gap based at least in part on the positioning reference signal configuration and the measurement gap.