Configurable reference signal time difference measurement (RSTD) search window

A method of operating a user equipment (UE), comprising:

• receiving a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• receiving a plurality of PRS defined by the PRS configuration from a network node, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth;
• and
• determining an RSTD between the network node and a reference node based on the RSTD search window.

A method of operating a location server, comprising:

• determining a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• providing the RSTD search window to a user equipment (UE) via a base station serving the UE;
• and
• configuring a plurality of PRS defined by the PRS configuration to be transmitted to the UE, wherein the plurality of PRS is to be transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.

A network entity, comprising:

• a transceiver circuitry;
• a memory circuitry;
• and
• a processor circuitry communicatively coupled to the transceiver circuitry and the memory circuitry, wherein the processor circuitry is configured to:
• obtain a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• provide the RSTD search window to a user equipment (UE);
• and
• transmit a plurality of PRS defined by the PRS configuration to the UE, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.

A network entity, comprising:

• means for obtaining a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• means for providing the RSTD search window to a user equipment (UE);
• and
• means for transmitting a plurality of PRS defined by the PRS configuration to the UE, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.

A non-transitory computer-readable medium storing computer-executable instructions for a network entity, the computer-executable instructions comprising:

• one or more instructions instructing the network entity to obtain a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, and wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• one or more instructions instructing the network entity to provide the RSTD search window to a user equipment (UE);
• and
• one or more instructions instructing the network entity to transmit a plurality of PRS defined by the PRS configuration to the UE, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.

A user equipment (UE), comprising:

• a transceiver circuitry;
• a memory circuitry;
• and
• a processor circuitry communicatively coupled to the transceiver circuitry and the memory circuitry, wherein the processor circuitry is configured to:
• receive a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• receive a plurality of PRS defined by the PRS configuration from a network node, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth;
• and
• determine an RSTD between the network node and a reference node based on the RSTD search window.

A user equipment (UE), comprising:

• means for receiving a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• means for receiving a plurality of PRS defined by the PRS configuration from a network node, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth;
• and
• means for determining an RSTD between the network node and a reference node based on the RSTD search window.

A non-transitory computer-readable medium storing computer-executable instructions for a user equipment (UE), the computer-executable instructions comprising:

• one or more instructions instructing the UE to receive a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, and wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• one or more instructions instructing the UE to receive a plurality of PRS defined by the PRS configuration from a network node, wherein the plurality of PRS is transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth;
• and
• one or more instructions instructing the UE to determine an RSTD between the network node and a reference node based on the RSTD search window.

A location server, comprising:

• a transceiver circuitry;
• a memory circuitry;
• and
• a processor circuitry communicatively coupled to the transceiver circuitry and the memory circuitry, wherein the processor circuitry is configured to:
• determine a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• provide the RSTD search window to a user equipment (UE) via a base station serving the UE;
• and
• configure a plurality of PRS defined by the PRS configuration to be transmitted to the UE, wherein the plurality of PRS is to be transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.

A location server, comprising:

• means for determining a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• means for providing the RSTD search window to a user equipment (UE) via a base station serving the UE;
• and
• means for configuring a plurality of PRS defined by the PRS configuration to be transmitted to the UE, wherein the plurality of PRS is to be transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.

A non-transitory computer-readable medium storing computer-executable instructions for a location server, the computer-executable instructions comprising:

• one or more instructions instructing the location server to determine a reference signal timing difference (RSTD) search window based on a positioning reference signal (PRS) configuration, wherein the RSTD search window is defined by an expected RSTD parameter and an RSTD uncertainty parameter, wherein the RSTD search window has an allowable range based on the PRS configuration, and wherein a different size of the RSTD search window is determined for each frequency range associated with the PRS configuration;
• one or more instructions instructing the location server to provide the RSTD search window to a user equipment (UE) via a base station serving the UE;
• and
• one or more instructions instructing the location server to configure a plurality of PRS defined by the PRS configuration to be transmitted to the UE, wherein the plurality of PRS is to be transmitted in a subset of subcarriers that is less than all subcarriers over a given bandwidth.