Configuring positioning signals and measurements to reduce latency
Systems and methods for configuring positioning measurements and quality/uncertainty measurements are provided. The configuration can include using reference signal configurations and signaling for positioning purposes. An access node transmits reference signal configuration information for positioning to a wireless device. The device performs positioning measurements accordingly and transmits a positioning measurement response including measurement quality information.
1 . A method performed by an access node, the method comprising:
transmitting, to a wireless device, configuration information including a reference signal (RS) for positioning associated with an active bandwidth part (BWP) of the wireless device and at least one Transmission/Reception Point (TRP);
transmitting, to the wireless device, a positioning measurement request;
receiving, from the wireless device, a positioning measurement response including measurement quality information;
evaluating position measurement quality in accordance with the positioning measurement response; and
responsive to evaluating the position measurement quality, initiating a positioning configuration change.
2 . The method of claim 1 , wherein the positioning configuration change includes one or more of: aperiodic CSI-RS configuration, switching the BWP for measurements, increasing or decreasing resources, changing a spatial relation, and changing at least one TRP.
3 . The method of claim 1 , further comprising, receiving, from a network node, positioning configuration including one or more of: a quality of service for positioning, a duration of positioning, and a measurement response periodicity.
4 . A method performed by a wireless device, the method comprising:
receiving, from an access node, configuration information including a reference signal (RS) for positioning associated with an active bandwidth part (BWP) of the wireless device and at least one Transmission/Reception Point (TRP);
receiving, from the access node, a positioning measurement request;
performing positioning measurements in accordance with at least one of the configuration information and the positioning measurement request message;
transmitting, to the access node, a positioning measurement response including measurement quality information; and
receiving, from the access node, a positioning configuration change.
5 . The method of claim 4 , wherein the configuration information is received via Radio Resource Control (RRC) signaling.
6 . The method of claim 4 , wherein the configuration information is one of: a serving cell configuration message, a Channel State Information (CSI) measurement configuration message, a CSI reporting configuration message, a CSI resource configuration message, a measurement object message, and a positioning CSI-RS assistance data message.
7 . The method of claim 4 , wherein the configuration information is one of: a serving cell configuration message, a Positioning Reference Signal (PRS) measurement configuration message, a PRS reporting configuration message, a PRS resource configuration message, a measurement object message, and a PRS assistance data message.
8 . The method of claim 4 , wherein the configuration information includes one or more of: positioning measurement parameters and quality measurement parameters.
9 . The method of claim 4 , wherein the configuration information includes an extension to a Channel State Information Reference Signal (CSI-RS) or Synchronization Signal Block (SSB) resource set for positioning purposes.
10 . The method of claim 4 , wherein the positioning measurement request is one of a Medium Access Control (MAC) Control Element (CE) message or a Downlink Control Information (DCI) message.
11 . The method of claim 4 , further comprising, performing the positioning measurements without requesting for measurement gap.
12 . The method of claim 4 , wherein the positioning measurement response is a MAC CE message.
13 . The method of claim 4 , wherein the positioning measurement response further includes positioning measurements.
14 . The method of claim 4 , further comprising, transmitting positioning measurements to a network node.
15 . A wireless device comprising a radio interface and processing circuitry configured to:
receive, from an access node, configuration information including a reference signal (RS) for positioning associated with an active bandwidth part (BWP) of the wireless device and at least one Transmission/Reception Point (TRP);
receive, from the access node, a positioning measurement request;
perform positioning measurements in accordance with at least one of the configuration information and the positioning measurement request message;
transmit, to the access node, a positioning measurement response including measurement quality information; and
receive, from the access node, a positioning configuration change.
16 . The wireless device of claim 15 , wherein the configuration information is received via Radio Resource Control (RRC) signaling.
17 . The wireless device of claim 15 , wherein the configuration information is one of: a serving cell configuration message, a Channel State Information (CSI) measurement configuration message, a CSI reporting configuration message, a CSI resource configuration message, a measurement object message, and a positioning CSI-RS assistance data message.
18 . The wireless device of claim 15 , wherein the configuration information is one of: a serving cell configuration message, a Positioning Reference Signal (PRS) measurement configuration message, a PRS reporting configuration message, a PRS resource configuration message, a measurement object message, and a PRS assistance data message.
19 . The wireless device of claim 15 , wherein the configuration information includes one or more of: positioning measurement parameters and quality measurement parameters.
20 . The wireless device of claim 15 , wherein the configuration information includes an extension to a Channel State Information Reference Signal (CSI-RS) or Synchronization Signal Block (SSB) resource set for positioning purposes.
21 . The wireless device of claim 15 , wherein the positioning measurement request is one of a Medium Access Control (MAC) Control Element (CE) message or a Downlink Control Information (DCI) message.
22 . The wireless device of claim 15 , further configured to perform the positioning measurements without requesting for measurement gap.
23 . The wireless device of claim 15 , wherein the positioning measurement response is a MAC CE message.
24 . The wireless device of claim 15 , wherein the positioning measurement response further includes positioning measurements.
25 . The wireless device of claim 15 , further configured to transmit positioning measurements to a network node.