Positioning measurement mechanism and methods of operating the same
View Patent ↗A wireless communication method, a terminal device and a network device are provided. The terminal device receives a processing indicator from a network device, the processing indicator describing one or more details of a dynamically configured measurement gap that is aperiodic. The terminal device obtains location measurements according to the dynamically configured measurement gap, the location measurements corresponding to a current geographic location of the terminal device.
1 . A wireless communication method, the method comprising:
receiving, by a terminal device, from a network device, a processing indicator that describes one or more details of a dynamically configured measurement gap that is aperiodic, wherein the dynamically configured measurement gap is used for location measurements corresponding to a current geographic location of the terminal device, and the dynamically measurement configuration comprises a measurement gap configuration, and wherein the processing indicator further comprises a media access control control element (MAC CE) activation command, and the MAC CE activation command is for activating the dynamically configured measurement gap described by the processing indicator;
in response to receiving the MAC CE activation command, transmitting, by the terminal device, an activation response by sending, to the network device, a physical uplink control channel (PUCCH) with Hybrid Automatic Repeat request (HARQ) acknowledgment information in slot n that corresponds to a physical downlink shared channel (PDSCH) carrying the MAC CE activation command;
determining, by the terminal device, a measurement trigger for initiating location-based measurements based on the measurement gap configuration,
performing, by the terminal device in response to the measurement trigger, measurement of positioning reference signal (PRS) according to the dynamically configured measurement gap to derive a resource measurement, generating, by the terminal device, a measurement report based on the resource measurement, and sending, by the terminal device, the measurement report to the network device, wherein the measurement report is for calculating the current geographic location of the terminal device;
receiving, by the terminal device, a MAC CE deactivation command from the network device, wherein the MAC CE deactivation command is for deactivating an activated measurement gap; and
sending, by the terminal device to the network device, as a deactivation response, a PUCCH with HARQ acknowledgment information in slot n that corresponds to a PDSCH carrying the MAC CE deactivation command.
2 . The method of claim 1 , further comprising: before receiving the MAC CE deactivation command,
sending, by the terminal device, a measurement gap request to the network device to request a measurement gap configuration for the location measurements.
3 . The method of claim 1 , wherein the deactivated measurement gap starts from a first slot following slot
n
+
3
N
slot
subframe
,
μ
,
where μ represents a subcarrier spacing (SCS) configuration for a PUCCH.
4 . The method of claim 1 , wherein the activated measurement gap starts from the first slot following the slot
n
+
3
N
slot
subframe
,
μ
,
where μ represents a SCS configuration for a PUCCH.
5 . The method of claim 2 , further comprising: before receiving the MAC CE activation command,
receiving, by the terminal device, a measurement gap list representative of a predetermined set of PRS measurement configurations; and
wherein sending, by the terminal device, the measurement gap request includes:
sending, by the terminal device, the measurement gap request including a selection for one configuration from the predetermined set.
6 . A terminal device, comprising:
a transceiver, configured to
receive, from a network device, a processing indicator that describes one or more details of a dynamically configured measurement gap that is aperiodic, wherein the dynamically configured measurement gap is used for location measurements corresponding to a current geographic location of the terminal device, and the dynamically measurement configuration comprises a measurement gap configuration, and the processing indicator further comprises a media access control control element (MAC CE) activation command, and the MAC CE activation command is for activating the dynamically configured measurement gap described by the processing indicator; and
in response to receiving the MAC CE activation command, transmit an activation response by sending, to the network device, a physical uplink control channel (PUCCH) with Hybrid Automatic Repeat request (HARQ) acknowledgment information in slot n that corresponds to a physical downlink shared channel (PDSCH) carrying the MAC CE activation command; and
a processor, configured to:
determine a measurement trigger for initiating location-based measurements based on the measurement gap configuration;
perform, in response to the measurement trigger, measurement of positioning reference signal (PRS) according to the dynamically configured measurement gap to derive a resource measurement, and generate a measurement report based on the resource measurement,
wherein the transceiver is further configured to:
send the measurement report to the network device, wherein the measurement report is for calculating the current geographic location of the terminal device;
receive a MAC CE deactivation command from the network device, wherein the MAC CE deactivation command is for deactivating an activated measurement gap; and
send, to the network device, as a deactivation response, a PUCCH with HARQ acknowledgment information in slot n that corresponds to a PDSCH carrying the MAC CE deactivation command.
7 . The terminal device of claim 6 , wherein the transceiver is further configured to: before receiving the MAC CE deactivation command,
send a measurement gap request to the network device to request a measurement gap configuration for the location measurements.
8 . The terminal device of claim 6 , wherein the deactivated measurement gap starts from a first slot following slot
n
+
3
N
slot
subframe
,
μ
,
where μ represents a subcarrier spacing (SCS) configuration for a PUCCH.
9 . The terminal device of claim 6 , wherein the activated measurement gap starts from the first slot following the slot
n
+
3
N
slot
subframe
,
μ
,
where μ represents a SCS configuration for a PUCCH.
10 . The terminal device of claim 7 , wherein the transceiver is further configured to:
send the measurement gap request including a selection for one configuration from a predetermined set of PRS measurement configurations to the network device; and
receive a measurement gap list representative of the predetermined set from the network device.
11 . A network device, comprising:
a transceiver, configured to:
send to a terminal device a processing indicator as a dynamically measurement configuration that describes one or more details of a dynamically configured measurement gap that is aperiodic, wherein the dynamically configured measurement gap is used for location measurements corresponding to a current geographic location of the terminal device, and the dynamically measurement configuration comprises a measurement gap configuration, the processing indicator further comprises a media access control control element (MAC CE) activation command;
send the MAC CE activation command to the terminal device, wherein the MAC CE activation command is for activating the dynamically configured measurement gap described by the processing indicator;
receive, from the terminal device and in response to the MAC CE activation command, a physical uplink control channel (PUCCH) with Hybrid Automatic Repeat request (HARQ) acknowledgment information in slot n that corresponds to a physical downlink shared channel (PDSCH) carrying the MAC CE activation command;
receive a measurement report from the terminal device, wherein the measurement report is obtained based on the dynamically configured measurement gap and is for calculating the current geographic location of the terminal device;
send, in response to the received measurement report, a MAC CE deactivation command to the terminal device, wherein the MAC CE deactivation command is for deactivating an activated measurement gap; and
receive, from the terminal device, as a deactivation response, a PUCCH with HARQ acknowledgment information in slot n that corresponds to a PDSCH carrying the MAC CE deactivation command.
12 . The network device of claim 11 , further comprising: before sending the MAC CE deactivation command,
receiving, by the network device, a measurement gap request from the terminal device to request a measurement gap configuration for the location measurements.
13 . The network device of claim 11 , wherein the deactivated measurement gap starts from a first slot following slot
n
+
3
N
slot
subframe
,
μ
,
where μ represents a subcarrier spacing, SCS, configuration for a PUCCH.
14 . The network device of claim 11 , wherein the activated measurement gap starts from the first slot following the slot
n
+
3
N
slot
subframe
,
μ
,
where μ represents an SCS configuration for a PUCCH.
15 . The network device of claim 12 , wherein the transceiver is further configured to:
receive the measurement gap request including a selection for one configuration from a predetermined set of PRS measurement configurations from the terminal device; and
send a measurement gap list representative of the predetermined set to the terminal device.