UE, network device and method for wireless communication at UE and network device

Abstract

A UE, a network device, and a method of wireless communication at the UE and the network device are described. The UE comprises at least one processor; and at least one memory coupled to the at least one processor and storing instructions executable by the at least one processor to cause the UE to: receive system information indicative of a set of monitoring occasions for a tracking reference signal associated with a connected mode, where each monitoring occasion includes time and frequency resources for transmitting the tracking reference signal; receiving a paging signal on the control channel while operating in an idle mode or an inactive mode, the paging signal comprising an indication of a change in system information based at least in part on a change in a set of monitoring occasions of the tracking reference signal, where the paging signal comprises an indication of an updated set of monitoring occasions of the tracking reference signal; and monitoring an updated set of monitoring opportunities of the tracking reference signal based at least in part on the system information change indication in the paging signal.

Description

[0001] This application is a divisional application of the invention patent application with the application date of January 15, 2021, application number 202180008792.5, and invention name “Reference signal monitoring timing update for idle and inactive user equipment”.

[0002] Cross-references

[0003] This patent application claims the benefit of U.S. Provisional Patent Application No. 62 / 962,814, filed on January 17, 2020 by Ly et al., entitled “Reference SignalMonitoring Occasion Updates for Idle and Inactive User Equipment,” and U.S. Patent Application No. 17 / 148,768, filed on January 14, 2021 by Ly et al., entitled “Reference SignalMonitoring Occasion Updates for Idle and Inactive User Equipment,” each of which is assigned to the present assignee. Technical Field

[0004] The following relates generally to wireless communications, and more particularly to reference signal monitoring opportunity updates for idle and inactive user equipment (UE). Background Art

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as long term evolution (LTE) systems, LTE advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may use techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include multiple base stations or network access nodes, each of which simultaneously supports communication with multiple communication devices, which may be referred to as user equipment (UE).

[0006] The UE may enter a low power mode to save battery. When the UE is in a low power state, the configuration of the serving cell may change. Some techniques for indicating configuration updates to the UE in a low power mode may be insufficient and may be improved. Summary of the invention

[0007] The described technology relates to improved methods, systems, devices and apparatuses for supporting reference signal monitoring opportunity updates for idle and inactive UEs. In general, the described technology provides for configuring reference signal opportunities for user equipment (UE) when the UE is in an inactive mode or idle mode. The UE can enter an inactive mode or idle mode to save battery. A UE in an inactive mode or idle mode can sleep for most of a discontinuous reception (DRX) cycle and wake up periodically to monitor paging messages. If the UE does not detect a paging message indicating the presence of data or a call, the UE can return to sleep until the next paging opportunity.

[0008] The UE may be configured to monitor reference signals, such as tracking reference signals (TRS) and channel state information (CSI) reference signals (CSI-RS), when the UE is in an inactive mode or idle mode. The base station may configure the timing of the reference signal for the UE, during which the base station sends the corresponding reference signal. In some cases, the configuration of the reference signal timing may be updated when the UE is in an inactive mode or idle mode. The technology described herein supports configuring updated reference signal timing for the UE when the UE is in an inactive mode or idle mode. For example, when the UE is in an inactive mode or idle mode, the UE may receive an indication of a potential TRS or CSI-RS timing. In some cases, the reference signal timing may be indicated to the UE via paging downlink control information (DCI) or a paging message. In some examples, the reference signal timing may be indicated to the UE via system information.

[0009] A user equipment (UE) is described, comprising: at least one processor; and at least one memory, coupled to the at least one processor and storing instructions, wherein the instructions can be executed by the at least one processor to enable the UE to: receive system information indicating a set of monitoring opportunities for a tracking reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the tracking reference signal; when operating in an idle mode or an inactive mode, receive a paging signal on a control channel, the paging signal including a system information change indication based at least in part on a change of the set of monitoring opportunities for the tracking reference signal, wherein the paging signal includes an indication of an updated set of monitoring opportunities for the tracking reference signal; and monitor the updated set of monitoring opportunities for the tracking reference signal based at least in part on the system information change indication in the paging signal.

[0010] A network device is described, comprising: at least one processor; and at least one memory coupled to the at least one processor and storing instructions, the instructions being executable by the at least one processor to cause the network device to: send system information indicating a set of transmission opportunities for a tracking reference signal associated with a connected mode, wherein each transmission opportunity includes time and frequency resources for sending the tracking reference signal; send a paging signal on a control channel to a user equipment (UE) operating in an idle mode or an inactive mode, the paging signal including a system information change indication based at least in part on a change in the set of transmission opportunities for the tracking reference signal, wherein the paging signal includes an indication of an updated set of transmission opportunities for the tracking reference signal; and send the tracking reference signal in the updated set of transmission opportunities for the tracking reference signal based at least in part on the system information change indication in the paging signal.

[0011] A method for wireless communication at a user equipment (UE) is described, comprising: receiving system information indicating a set of monitoring opportunities for a tracking reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the tracking reference signal; when operating in an idle mode or an inactive mode, receiving a paging signal on a control channel, the paging signal including a system information change indication based at least in part on a change of the set of monitoring opportunities for the tracking reference signal, wherein the paging signal includes an indication of an updated set of monitoring opportunities for the tracking reference signal; and monitoring the updated set of monitoring opportunities for the tracking reference signal based at least in part on the system information change indication in the paging signal.

[0012] A method for wireless communication at a network device is described, comprising: sending system information indicating a set of transmission opportunities for a tracking reference signal associated with a connected mode, wherein each transmission opportunity includes time and frequency resources for sending the tracking reference signal; sending a paging signal on a control channel to a user equipment (UE) operating in an idle mode or an inactive mode, the paging signal including a system information change indication based at least in part on a change of the set of transmission opportunities for the tracking reference signal, wherein the paging signal includes an indication of an updated set of transmission opportunities for the tracking reference signal; and sending the tracking reference signal in the updated set of transmission opportunities for the tracking reference signal based at least in part on the system information change indication in the paging signal.

[0013] A method of wireless communication at a UE is described. The method may include receiving a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, changing the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receiving paging downlink control information, identifying an updated set of monitoring opportunities for the reference signal based on the received paging downlink control information, and performing time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0014] A device for wireless communication at a UE is described. The device may include a processor, a memory coupled to the processor (e.g., operatively, electronically, communicatively, or otherwise), and instructions stored in the memory. The instructions may be executed by the processor (directly, after compilation, after conversion, etc.) to cause the device to receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, a change in the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive paging downlink control information, identify an updated set of monitoring opportunities for the reference signal based on the received paging downlink control information, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0015] Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, changing the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receiving paging downlink control information, identifying an updated set of monitoring opportunities for the reference signal based on the received paging downlink control information, and performing time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0016] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor (directly, after compilation or conversion, etc.) to receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive paging downlink control information, identify an updated set of monitoring opportunities for the reference signal based on the received paging downlink control information, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes an indication of an updated set of monitoring occasions for a reference signal.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a paging identifier, a UE group identifier, or both.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information schedules a paging downlink shared channel.

[0020] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for monitoring a paging message including an indication of an updated set of monitoring occasions based on receiving paging downlink control information.

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a bit indicating that the paging message includes an updated configuration for a reference signal only.

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a bit indicating that the paging message includes an indication of an updated set of monitoring occasions.

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a bit indicating that the paging message includes an indication of an updated set of monitoring occasions corresponds to a reserved bit.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the bits indicating that the paging message includes an indication of an updated set of monitoring occasions correspond to reused bits.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a bit indicating that the paging message includes a configuration for a tracking reference signal but does not include a configuration for a channel state information reference signal.

[0026] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for applying a configuration associated with an updated set of monitoring opportunities until a reconfiguration for an updated set of monitoring opportunities is received.

[0027] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for identifying a reference signal opportunity window, wherein the UE assumes that a reference signal may be sent by the base station at a reference signal opportunity within the reference signal opportunity window, and monitors the reference signal in an updated monitoring opportunity set within the reference signal opportunity window.

[0028] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for receiving a deactivation message for an updated set of monitoring opportunities from a base station and refraining from monitoring a reference signal in the updated set of monitoring opportunities after receiving the deactivation message.

[0029] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for monitoring synchronization signal blocks for time and frequency tracking and radio resource management after receiving a deactivation message.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the deactivation message may be received in a reconfiguration message for a set of monitoring opportunities or in downlink control information.

[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a periodicity of the updated set of monitoring occasions may be the same as or different from a periodicity of paging occasions of the UE.

[0032] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for receiving a reference signal during an updated set of monitoring opportunities, measuring a signal characteristic of the reference signal, and determining a radio resource management measurement condition based on the signal characteristic.

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal includes a tracking reference signal, a channel state information reference signal, or both.

[0034] A method of wireless communication at a UE is described. The method may include receiving a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, changing the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receiving a system information change indication, receiving a system information message indicating an updated set of monitoring opportunities for the reference signal based on receiving the system information change indication, and performing time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0035] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor (e.g., operatively, electronically, communicatively, or otherwise), and instructions stored in the memory. The instructions may be executed by the processor (directly, after compilation, after conversion, etc.) to cause the apparatus to receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, a change in the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receiving a system information change indication, receiving a system information message indicating an updated set of monitoring opportunities for the reference signal based on receiving the system information change indication, and performing time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0036] Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, changing the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receiving a system information change indication, receiving a system information message indicating an updated set of monitoring opportunities for the reference signal based on receiving the system information change indication, and performing time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0037] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor (directly, after compilation or conversion, etc.) to receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive a system information change indication, based on receiving the system information change indication, receive a system information message indicating an updated set of monitoring opportunities for the reference signal, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0038] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for applying a configuration associated with an updated set of monitoring opportunities until a reconfiguration for an updated set of monitoring opportunities is received.

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, monitoring a reference signal may also include operations, features, components, or instructions for identifying a reference signal opportunity window, wherein the UE assumes that a reference signal may be sent by a base station at a reference signal opportunity within the reference signal opportunity window, and monitoring the reference signal in an updated set of monitoring opportunities within the reference signal opportunity window.

[0040] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for receiving a deactivation message for an updated set of monitoring opportunities from a base station and refraining from monitoring a reference signal in the updated set of monitoring opportunities after receiving the deactivation message.

[0041] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for monitoring synchronization signal blocks for time and frequency tracking and radio resource management after receiving a deactivation message.

[0042] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the deactivation message may be received in a reconfiguration message for a set of monitoring opportunities or in downlink control information.

[0043] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a periodicity of the updated set of monitoring occasions may be the same as or different from a periodicity of paging occasions of the UE.

[0044] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for receiving a reference signal during an updated set of monitoring opportunities, measuring a signal characteristic of the reference signal, and determining a radio resource management measurement condition based on the signal characteristic.

[0045] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal includes a tracking reference signal, a channel state information reference signal, or both.

[0046] A method of wireless communication at a base station is described. The method may include sending a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determining an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, sending paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode, and sending the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0047] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor (e.g., operatively, electronically, communicatively, or otherwise), and instructions stored in the memory. The instructions may be executed by the processor (directly, after compilation, after conversion, etc.) to cause the apparatus to send a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending a reference signal, determine an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode, and send the reference signal in the updated set of transmission opportunities when the UE is operating in a connected mode.

[0048] Another apparatus for wireless communication at a base station is described. The apparatus may include means for sending a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determining an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, sending paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode, and sending the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0049] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor (directly, after compilation or conversion, etc.) to send a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determine an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode, and send the reference signal in the updated set of transmission opportunities when the UE is operating in a connected mode.

[0050] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes an indication of an updated set of transmission opportunities for a reference signal.

[0051] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a paging identifier, a UE group identifier, or both.

[0052] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information schedules a paging downlink shared channel.

[0053] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a paging message including an indication of an updated set of transmission occasions based on sending paging downlink control information.

[0054] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a bit indicating that the configuration includes an updated configuration for reference signals only.

[0055] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a bit indicating that the paging message includes an indication of an updated set of transmission opportunities.

[0056] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a bit indicating that the paging message includes an indication of an updated set of transmission opportunities corresponds to a reserved bit.

[0057] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the bits indicating that the paging message includes an indication of an updated set of transmission opportunities correspond to reused bits.

[0058] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the paging downlink control information includes a bit indicating that the paging message includes a configuration for a tracking reference signal but does not include a configuration for a channel state information reference signal.

[0059] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for sending a deactivation message to the UE for an updated set of transmission opportunities.

[0060] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the deactivation message may be sent in a reconfiguration message for a set of transmission opportunities or in downlink control information.

[0061] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a periodicity of the updated set of transmission occasions corresponds to a periodicity of paging occasions of the UE.

[0062] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal includes a tracking reference signal, a channel state information reference signal, or both.

[0063] A method of wireless communication at a base station is described. The method may include sending a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determining an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, sending a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode, sending a system information message indicating the updated set of transmission opportunities for the reference signal, and sending the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0064] A device for wireless communication at a base station is described. The device may include a processor, a memory coupled to the processor (e.g., operatively, electronically, communicatively, or otherwise), and instructions stored in the memory. The instructions may be executed by the processor (directly, after compilation, after conversion, etc.) to cause the device to send a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determine an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, send a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode, send a system information message indicating an updated set of transmission opportunities for the reference signal, and send the reference signal in the updated set of transmission opportunities when the UE is operating in a connected mode.

[0065] Another apparatus for wireless communication at a base station is described. The apparatus may include a reference signal configuration for sending a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determining an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, sending a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode, sending a system information message indicating the updated set of transmission opportunities for the reference signal, and sending the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0066] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor (directly, after compilation or conversion, etc.) to send a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal, determine an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, send a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode, send a system information message indicating the updated set of transmission opportunities for the reference signal, and send the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0067] Some examples of methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, components, or instructions for sending a reconfiguration for an updated set of transmission opportunities, wherein after sending the reconfiguration, a reference signal may be sent based on the reconfiguration.

[0068] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for sending a deactivation message for an updated set of transmission opportunities to a UE.

[0069] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the deactivation message may be sent in a reconfiguration message for a set of transmission opportunities or in downlink control information.

[0070] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a periodicity of the updated set of transmission occasions may be the same as or different from a periodicity of a paging occasion of the UE.

[0071] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the reference signal includes a tracking reference signal, a channel state information reference signal, or both. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 An example of a wireless communication system supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0073] Figure 2 An example of a wireless communication system supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0074] Figure 3 An example of a reference signal timing update scheme supporting reference signal monitoring timing updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0075] Figure 4 An example of a reference signal timing update scheme supporting reference signal monitoring timing updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0076] Figure 5 An example of a process flow to support reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0077] Figure 6 An example of a process flow to support reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0078] Figure 7 and Figure 8 A block diagram of an apparatus supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0079] Fig. 9 A block diagram of a communications manager supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0080] Fig.10 A diagram of a system including devices supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0081] Fig.11 and Fig.12 A block diagram of an apparatus supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0082] Fig.13 A block diagram of a communications manager supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0083] Fig.14A diagram of a system including devices supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown.

[0084] Figure 15 to Figure 22 A flow chart illustrating a method of supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0085] A user equipment (UE) in a wireless communication system can enter a low power mode to save battery and improve power saving. For example, some wireless communication systems can support an inactive mode and an idle mode for UEs. A UE operating in an inactive mode or an idle mode can spend less time monitoring signaling from a base station, thereby reducing power consumption. A UE in an inactive mode or an idle mode can sleep for most of a discontinuous reception (DRX) cycle and wake up periodically to monitor paging messages. If the UE does not detect a paging message indicating the presence of data or a call, the UE can return to sleep until the next paging opportunity.

[0086] When the UE operates in active mode or connected mode, the base station can manage the radio resource management of the UE based on UE mobility, radio channel quality, or both. For example, the base station can track the location and positioning of the UE to provide the UE with a strong connection and beam to communicate with nearby cells. In some cases, the base station can send a tracking reference signal (TRS) to the UE, which can be used to track the location of the UE within the wireless communication system. In order to measure the channel conditions of the UE, the base station can send a channel state information reference signal (CSI-RS). The UE can measure the CSI-RS and provide a CSI report indicating various radio channel quality measurements to the base station.

[0087] The base station can configure the timing of reference signals such as TRS and CSI-RS for the UE. The timing may include the time and frequency resources for the base station to send the reference signal. The timing may have a configured periodicity and pattern in the time domain and the frequency domain. In some cases, when the UE is in an inactive mode or an idle mode, the configuration of the reference signal timing may be updated. Once the UE enters a connected mode, some systems may provide an updated configuration to the UE. However, signaling the updated configuration once the UE is in a connected mode may have a large system overhead.

[0088] In order to reduce signaling overhead, a wireless communication system may support configuring a reference signal opportunity for a UE when the UE is in an inactive mode or an idle mode. For example, when the UE is in an inactive mode or an idle mode, the UE may receive a potential TRS or CSI-RS opportunity that is available when the UE is in a connected mode. In some cases, the reference signal opportunity may be indicated to the UE via paging downlink control information (DCI) or a paging message. For example, the paging DCI may include a TRS / CSI-RS opportunity configuration. In some cases, the paging DCI may indicate that the TRS / CSI-RS opportunity configuration is included in the paging message. In some examples, the reference signal opportunity may be indicated to the UE via system information. The base station may send a system information change indication, and the UE may monitor the system information based on receipt of the indication. Additional techniques are described, such as configuring how long the UE uses the updated configuration.

[0089] Aspects of the present disclosure are initially described in the context of wireless communication systems. Various aspects of the present disclosure are further illustrated and described by apparatus diagrams, system diagrams, and flow diagrams involving reference signal monitoring opportunity updates for idle and inactive UEs.

[0090] Figure 1 An example of a wireless communication system 100 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an LTE advanced (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some cases, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices.

[0091] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base transceiver, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next generation NodeB or a giga-NodeB (any of which may be referred to as a gNB), a home NodeB, a home eNodeB, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network devices including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.

[0092] Each base station 105 may be associated with a particular geographic coverage area 110 in which communications with various UEs 115 are supported. Each base station 105 may provide communications coverage for the respective geographic coverage area 110 via a communications link 125, and the communications link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communications link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0093] The geographic coverage area 110 of the base station 105 can be divided into sectors that constitute a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 can provide communication coverage for a macro cell, a small cell, a hotspot, or other type of cell, or various combinations thereof. In some examples, the base station 105 can be mobile, thereby providing communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies can overlap, and overlapping geographic coverage areas 110 associated with different technologies can be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, heterogeneous LTE / LTE-A / LTE-APro or NR networks in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

[0094] The term "cell" refers to a logical communication entity for communicating with a base station 105 (e.g., via a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)) for distinguishing adjacent cells operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or other) that may provide access to different types of devices. In some cases, the term "cell" may refer to a portion of a geographic coverage area 110 (e.g., a sector) on which the logical entity operates.

[0095] UE 115 may be dispersed throughout the wireless communication system 100, and each UE 115 may be stationary or mobile. UE 115 may also be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable terminology, where "device" may also be referred to as a unit, station, terminal, or client. UE 115 may also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a multimedia / entertainment device (e.g., a radio, an MP3 player, a video device, etc.), a camera, a gaming device, a navigation / positioning device (e.g., a GNSS (Global Navigation Satellite System) device, such as based on GPS (Global Positioning System), Beidou, GLONASS or Galileo, a ground-based device, etc.), a tablet, a laptop or a personal computer, a netbook, a smartbook, a personal computer, a smart device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, virtual reality goggles, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), a drone, a robot / robotic device, a vehicle, an on-board device, a meter (e.g., a parking meter, an electricity meter, a gas meter, a water meter), a display, a gas pump, an appliance (e.g., a kitchen appliance, a washing machine, a dryer), a location tag, a medical / health care device, an implant, a sensor / actuator, a display, or any other suitable device configured to communicate via a wireless or wired medium. In some examples, UE 115 may also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which may be implemented in various items such as home appliances, vehicles, meters, etc.

[0096] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automatic communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application, which may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Application examples of MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based service charging. In one aspect, the technology disclosed herein may be applicable to MTC or IoT UEs. MTC or IOT UE may include MTC / enhanced MTC (eMTC, also known as CAT-M, Cat M1) UE, NB-IoT (also known as CAT NB1) UE, and other types of UE. eMTC and NB-IoT may refer to future technologies that may evolve from or may be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (enhanced further eMTC), mMTC (massive MTC), etc., and NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc.

[0097] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports one-way communication via transmission or reception, but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed at a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving "deep sleep" mode when not engaged in active communications or operating over limited bandwidth (e.g., in accordance with narrowband communications). In some cases, UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0098] In some cases, the UE 115 may also communicate directly with other UEs 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more of the group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or may not be able to receive transmissions from the base station 105. In some cases, the group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to each other UE 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0099] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interface). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) via a backhaul link 134 (e.g., via X2, Xn, or other interface).

[0100] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connections, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobile management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions, such as mobility, authentication, and bearer management, for UE 115 served by a base station 105 associated with the EPC. User IP packets may be transmitted through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to a network operator IP service. Operator IP services may include access to the Internet, (multiple) intranets, IP multimedia subsystems (IMS), or packet switched (PS) streaming services.

[0101] At least some network devices, such as base stations 105, may include subcomponents such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with UE 115 through several other access network transmission entities, which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or integrated into a single network device (e.g., base station 105).

[0102] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Typically, the region of 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength range is approximately 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features. However, these waves can penetrate structures enough to allow macro cells to serve UEs 115 indoors. Transmissions using UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 km) than transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum with frequencies less than 300 MHz.

[0103] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using frequency bands from 3 GHz to 30 GHz (also known as the centimeter wave bands). The SHF region includes frequency bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band, which may be used by devices that can tolerate interference from other users.

[0104] The wireless communication system 100 can also operate in the extremely high frequency (EHF) region (e.g., from 30 GHz to 300 GHz), also known as the millimeter wave band. In some examples, the wireless communication system 100 can support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of each device can be smaller and closer than the UHF antennas. In some cases, this can facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may be subject to greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The technology disclosed herein can be used across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may vary by country or regulatory agency.

[0105] In some cases, the wireless communication system 100 can utilize licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can adopt license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5GHz ISM band. When operating in an unlicensed radio frequency spectrum band, wireless devices such as base stations 105 and UE 115 can adopt a listen-before-talk (LBT) process to ensure that the channel is clear before sending data. In some cases, operations in unlicensed bands can be based on carrier aggregation configurations and component carriers operating in licensed bands (e.g., LAA). Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum can be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of both.

[0106] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., a base station 105) and a receiving device (e.g., a UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, multiple signals may be transmitted by a transmitting device via different antennas or different combinations of antennas. Similarly, multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are sent to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are sent to multiple devices.

[0107] Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to shape or direct an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals transmitted via antenna elements of an antenna array so that signals propagating in a particular direction relative to the antenna array experience constructive interference while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying certain amplitude and phase offsets to signals transmitted via each antenna element associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other direction).

[0108] In one example, the base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, the base station 105 may transmit some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions, which may include signals transmitted according to different beamforming weight sets associated with different transmission directions. The transmission of different beam directions can be used to identify (e.g., by the base station 105 or a receiving device, such as the UE 115) a beam direction for subsequent transmission and / or reception by the base station 105.

[0109] Some signals, such as data signals associated with a particular receiving device, may be transmitted by base station 105 in a single beam direction (e.g., a direction associated with a receiving device such as UE 115). In some examples, a beam direction associated with transmitting along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signal it received with the highest signal quality or other acceptable signal quality. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by UE 115), or for transmitting signals in a single direction (e.g., for transmitting data to a receiving device).

[0110] A receiving device (e.g., UE 115, which may be an example of a millimeter wave receiving device) may try multiple receive beams when receiving various signals from base station 105 (e.g., synchronization signals, reference signals, beam selection signals, or other control signals). For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may receive along a single beam direction using a single receive beam (e.g., when receiving a data signal). The single receive beam may be aligned in a beam direction determined at least in part based on listening according to different receive beam directions (e.g., a beam direction with the highest signal strength, the highest signal-to-noise ratio, or otherwise acceptable signal quality determined at least in part based on listening according to multiple beam directions).

[0111] In some cases, the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays that may support MIMO operations, or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located on an antenna assembly (e.g., an antenna tower). In some cases, the antennas or antenna arrays associated with a base station 105 may be located in different geographic locations. A base station 105 may have an antenna array with several rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with a UE 115. Similarly, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0112] In some cases, the wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, the communication at the bearer or packet data aggregation protocol (PDCP) layer can be IP-based. The radio link control (RLC) layer can perform packet segmentation and reassembly to communicate on a logical channel. The medium access control (MAC) layer can perform priority processing and multiplex logical channels into transport channels. The MAC layer can also use hybrid automatic repeat request (HARQ) to provide retransmission at the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection between the base station 105 or the core network 130 that supports the radio bearer for user plane data. At the physical layer, the transport channel can be mapped to the physical channel.

[0113] In some cases, UE 115 and base station 105 may support retransmission of data to increase the possibility of successfully receiving data. HARQ feedback is a technique to increase the possibility of correctly receiving data through communication link 125. HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC) and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput of the MAC layer under poor radio conditions (e.g., signal-to-noise ratio conditions). In some cases, a wireless device may support same-slot HARQ feedback, where the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0114] The time interval in LTE or NR can be expressed as a multiple of the basic time unit. For example, the basic time unit can refer to T s =1 / 30720000 second sampling period. The time interval of the communication resources can be organized according to each radio frame having a duration of 10 milliseconds (ms), where the frame period can be represented as T f =307200T s . A radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each slot having a duration of 0.5 ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix preceding each symbol period). In addition to the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the minimum scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe, or may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI), or in a component carrier selected using an sTTI).

[0115] In some wireless communication systems, a time slot may be further divided into multiple mini-slots containing one or more symbols. In some cases, a symbol of a mini-slot or a mini-slot may be the minimum unit of scheduling. For example, the duration of each symbol may vary depending on the subcarrier spacing or the operating frequency band. In addition, some wireless communication systems may implement time slot aggregation, where multiple time slots or mini-slots are aggregated and used for communication between UE 115 and base station 105.

[0116] The term "carrier" refers to a collection of radio frequency spectrum resources with a defined physical layer structure for supporting communication over the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel raster for discovery by the UE 115. A carrier may be a downlink or uplink (e.g., in FDD mode), or may be configured to carry downlink and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted over a carrier may be composed of multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0117] The organization structure of the carrier may be different for different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR). For example, communications on a carrier can be organized based on TTIs or time slots, where each TTI or time slot can include user data and control information or signaling to support decoding of the user data. The carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate the operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers.

[0118] Physical channels can be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, using time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. In some examples, the control information sent in the physical control channel can be distributed in a cascaded manner between different control regions (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces).

[0119] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several predetermined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each serviced UE 115 may be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0120] In a system using MCM technology, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate may be for UE 115. In a MIMO system, wireless communication resources may refer to a combination of radio spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate used to communicate with UE 115.

[0121] A device of the wireless communication system 100 (e.g., a base station 105 or a UE 115) may have a hardware configuration that supports communication on a specific carrier bandwidth, or may be configured to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 and / or a UE 115 that supports simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0122] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers, a feature which may be referred to as carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.

[0123] In some cases, the wireless communication system 100 can utilize an enhanced component carrier (eCC). An eCC can have one or more characteristics, including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC can be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC can also be configured for use with unlicensed spectrum or shared spectrum (e.g., allowing more than one operator to use the spectrum). An eCC characterized by a wide carrier bandwidth can include one or more segments that can be used by a UE 115 that is not able to monitor the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0124] In some cases, the eCC may use a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of other component carriers. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC, such as a UE 115 or a base station 105, may transmit a wideband signal (e.g., based on a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.) at a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may consist of one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0125] The wireless communication system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. The flexibility of eCC symbol duration and subcarrier spacing may allow eCC to be used across multiple spectrums. In some examples, NR shared spectrum may improve spectrum utilization and spectrum efficiency, particularly through dynamic vertical (e.g., across frequency domain) and horizontal (e.g., across time domain) resource sharing.

[0126] When UE 115 does not have much traffic from the serving cell, UE 115 can enter a low power mode to save battery and improve power saving. For example, UE 115 can enter an inactive mode or an idle mode. When UE 115 is in an inactive mode, the last served base station 105 can maintain the access layer context of UE 115 that may have been established by the RRC connection. When UE 115 is in idle mode, the network can discard the UE context.

[0127] When UE 115 operates in an inactive mode or idle mode, UE 115 can spend less time monitoring signaling, thereby reducing power consumption. When operating in an inactive mode or idle mode, UE 115 can sleep for most of the DRX cycle and wake up periodically to monitor paging messages. In some cases, UE 115 can monitor one paging opportunity for each DRX cycle. Each paging opportunity may include a physical downlink control channel (PDCCH) monitoring opportunity set, and may include multiple time slots (e.g., multiple subframes or multiple OFDM symbols) in which paging DCI can be sent. UE 115 can attempt to decode the signal using a paging radio network temporary identifier (P-RNTI) to check for messages indicating pending data. If the UE does not detect a paging message indicating the presence of data or a call, the UE can return to sleep until the next paging opportunity.

[0128] Some UEs 115, such as UEs 115 with Earthquake and Tsunami Warning System (ETWS) capabilities and UEs 115 with Commercial Mobile Alert System (CMAS) capabilities, may also monitor public warnings (e.g., via a public warning system). These UEs 115 may monitor for indications about public warning system notifications at paging occasions in each DRX cycle.

[0129] When in inactive mode or idle mode, UE 115 may also monitor system information change indications. System information change indications may be sent on paging occasions to indicate that the configuration or system information has been updated. In some cases, a modification period may be used to broadcast updated system information (e.g., except for ETWS and CMAS). Updated system information may be sent in a modification period after the system information change indication is sent. The modification period boundary may be based on a system frame number (SFN) value, where SFN mod m=0, where m is the number of radio frames including the modification period. The modification period may be configured by system information. UE 115 may receive indications about SI modifications or public warning system (PWS) notifications using a message sent via DCI together with P-RNTI. System information change indications may be sent repeatedly within a modification period.

[0130] When the UE 115 is operating in an active mode or a connected mode, the serving base station 105 may manage some radio resource management operations of the UE 115 based on UE mobility, radio channel quality, or both. For example, the base station 105 may track the location and positioning of the UE 115 to provide a strong connection and beam. For example, if the base station 105 determines that the UE 115 has moved closer to another base station 105, the base station 105 may initiate a handover process to the other base station 105. In addition, if the UE 115 moves within the cell coverage area provided by the base station 105 such that the other beam provides a stronger connection, the base station 105 may switch to the stronger beam.

[0131] The technology described herein supports configuring the timing of reference signals such as TRS and CSI-RS for UE 115 in inactive mode or idle mode. For example, when UE 115 is in inactive mode or idle mode, UE 115 can receive an indication of potential TRS or CSI-RS timings available when UE 115 is in connected mode. In some cases, the reference signal timing can be indicated to UE 115 via paging DCI or paging message. For example, paging DCI can include TRS / CSI-RS timing configuration. In some cases, paging DCI can indicate that the TRS / CSI-RS timing configuration is included in the paging message. In some examples, the reference signal timing can be indicated to the UE via system information. The base station 105 can send a system information change indication, and the UE can monitor the system information based on receiving the indication. Additional techniques are described, such as configuring how long the UE uses the updated configuration.

[0132] Figure 2 An example of a wireless communication system 200 that supports reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. The wireless communication system 200 can include a UE 115-a and a base station 105-a, which can be reference signal monitoring opportunities. Figure 1 Corresponding examples of UE 115 and base station 105 are described.

[0133] When UE 115-a has no traffic from a serving cell, UE 115-a may enter a low power mode to save battery and improve power conservation. For example, UE 115-a may enter an inactive mode or an idle mode. When UE 115-a is in an inactive mode, base station 105-a may maintain the UE context established by the RRC connection. When UE 115-a is in an idle mode, base station 105-a may discard the UE context.

[0134] When UE 115-a operates in an inactive mode or idle mode, UE 115-a can spend less time monitoring signaling from base station 105, thereby reducing power consumption. When operating in an inactive mode or idle mode, UE 115-a can sleep for most of the DRX cycle and wake up periodically to monitor paging messages. In some cases, UE 115-a can monitor one paging occasion per DRX cycle. If UE-a does not detect a paging message indicating the presence of data or a call, UE-a can return to sleep until the next paging occasion. When in an inactive mode or idle mode, UE 115-a can also monitor system information change indications. System information change indications can be sent at paging occasions to indicate that configuration or system information has been updated.

[0135] When UE 115-a operates in active mode or connected mode, a serving base station 105, such as base station 105-a, may manage some radio resource management operations for UE 115-a based on UE mobility, radio channel quality, or both. In some cases, base station 105-a may send a TRS to UE 115-a, which may be used to track the location of UE 115-a within wireless communication system 200. To measure the channel conditions of UE 115-a, base station 105-a may send a CSI-RS. UE 115-a may measure the CSI-RS and provide a CSI report indicating various radio channel quality measurements to the base station.

[0136] The base station 105-a can configure the timing of the reference signal 205 for the UE 115-a, and the reference signal 205 can include a TRS, a CSI-RS, or both. The timing may include the time and frequency resources at which the base station 105-a is scheduled to send the reference signal 205. The timing may have a configured periodicity and pattern in the time domain and the frequency domain. In some cases, a reference signal timing may refer to a monitoring timing or a transmission timing. In some examples, a monitoring timing may refer to a reference signal timing of a receiver, during which the receiver may monitor a reference signal. In some examples, a transmission timing may refer to a reference signal timing of a transmitter, during which the transmitter may send a reference signal. In some cases, the terms transmission timing, monitoring timing, timing, and reference signal timing may be used interchangeably. For example, a first monitoring timing and a first transmission timing may refer to the same time and frequency resources.

[0137] In some cases, the configuration of reference signal opportunities may be updated while UE 115-a is in an inactive mode or an idle mode. For example, UE 115-a may be configured with an initial set of TRS and CSI-RS opportunities, but base station 105-a or the core network may change the resource allocation of TRS and CSI-RS while UE 115-a is in an inactive mode or an idle mode. As a result, UE 115-a may not have the correct configuration and may not be able to receive TRS or CSI-RS until an updated configuration is received. Once UE 115 enters connected mode, some systems may provide an updated configuration to UE 115. However, signaling the updated configuration once UE 115 is in connected mode may have a large system overhead.

[0138] To reduce signaling overhead, the wireless communication system 200 may support configuring reference signal opportunities for a UE 115, such as UE 115-a, when the UE 115 is in an inactive mode or an idle mode. For example, when the UE 115-a is in an inactive mode or an idle mode, the UE 115-a may receive a reference signal opportunity indication, which may indicate potential TRS or CSI-RS opportunities available to the UE 115-a when in a connected mode. By indicating reference signal opportunities when the UE 115-a is in an idle mode or an inactive mode, system overhead may be reduced.

[0139] In some cases, the reference signal timing may be indicated to the UE via a paging DCI or a paging message. For example, the paging DCI may include a TRS / CSI-RS timing configuration. In some cases, the paging DCI may indicate that the TRS / CSI-RS timing configuration is included in the paging message. The paging DCI may be carried by a physical downlink control channel (PDCCH), and the paging message may be carried by a physical downlink shared channel (PDSCH).

[0140] If the reference signal timing indication 210 is sent by a paging DCI, the paging CI may include a TRS and CSI-RS timing configuration, an identifier of a paging group or a UE group, or a combination thereof. In some cases, the paging DCI carrying the reference signal timing indication 210 may have a format specifically configured to transmit the reference signal timing indication 210. For example, the paging DCI may be an example of a new paging DCI with a new paging DCI format. In some examples, the new paging DCI may have a resource allocation different from, for example, a format 1_0, format 1_1, format 2_0, or format 2_1 DCI. In some cases, the reference signal timing indication 210 may be included in a paging DCI for unicast paging. In some cases, the reference signal timing indication 210 may be included in or attached to a traditional paging DCI.

[0141] In some cases, UE 115-a may receive reference signal opportunity indication 210 via a paging signal. The paging signal may be, for example, a paging DCI or a paging message. Additionally, or alternatively, the paging signal may include a system information change indication. For example, UE 115-a may receive a paging signal (e.g., a paging DCI or a paging message) that includes an indication that system information has been updated, and UE 115-a may monitor the updated system information based on receiving the paging signal. UE 115-a may identify an updated monitoring opportunity set for reference signals based on receiving the updated system information.

[0142] In some cases, the reference signal timing indication 210 can be attached to the paging message. In some cases, a bit in the paging DCI can indicate whether the TRS configuration is updated. In some cases, a bit in the paging DCI can indicate whether the TRS configuration is provided. In some cases, a bit in the paging DCI can indicate whether only the TRS configuration is provided. Therefore, if, for example, the paging message is only used to provide the TRS configuration or provide an update of the TRS configuration, the UE 115 that does not support TRS can ignore the paging message. In some cases, the bits from the previous paging DCI format can be reused for signaling. In some examples, the reserved bits of the existing paging DCI format can be used for signaling. In some cases, the reference signal timing indication 210 can be included in the paging message for the broadcast paging scheme.

[0143] In some examples, the reference signal timing may be indicated to the UE 115-a via system information. The base station 105-a may send a system information change indication, and the UE 115-a may monitor the system information based on receiving the indication. The UE 115-a may monitor the SI change indication at its own paging occasion during each DRX cycle. The UE 115-a may then receive an indication that the system information has changed, and then monitor the system information based on the change indication. The system information may include a reference signal timing indication 210.

[0144] UE 115-a may be configured to use the reference signal opportunity indicated by reference signal opportunity indication 210 for a certain duration. For example, UE 115-a may use the updated configuration until a new configuration of potential TRS / CSI-RS opportunities is provided. For example, base station 105-a may have another update for the opportunity and send another reference signal opportunity indication. UE 115-a may use the most recently received opportunity indication.

[0145] In some examples, reference signal opportunity indication 210 may include a duration over which UE 115-a may assume TRS and CSI-RS opportunities. For example, reference signal opportunity indication 210 may indicate to UE 115-a that the indicated opportunity may be assumed for the next N frames, DRX cycles, or paging opportunities. After the indicated duration, UE 115-a may assume a default reference signal opportunity configuration. In some cases, UE 115-a may assume that there are no resources configured for TRS or CSI-RS after the duration.

[0146] In some cases, the base station 105-a may send a deactivation message to the UE 115-a. In some cases, upon receiving the deactivation message, the UE 115-a may revert to previous operation. For example, the UE 115-a may assume a default set of reference signal opportunities. In some cases, the UE 115-a may use synchronization signal / physical broadcast channel (SS / PBCH) blocks for time and frequency tracking and radio resource management. In some cases, configuration deactivation / activation signaling may be indicated as part of the TRS and CSI-RS configuration or in the paging DCI.

[0147] In some examples, TRS, CSI-RS, or both may be used for radio resource management measurement relaxation. For example, UE 115-a may measure reference signal 205 and determine a signal characteristic of the reference signal. For example, UE 115-a may determine a reference signal received power, a reference signal received quality, or a reference signal strength indicator based on CSI-RS or TRS. UE 115-a may use the signal characteristics to determine conditions for radio resource management (RRM) measurement relaxation. In some cases, the periodicity of the reference signal occasion may be the same as the periodicity of the paging occasion. In some cases, the periodicity of the reference signal occasion may be different from the periodicity of the paging occasion.

[0148] Figure 3 Examples of reference signal timing update schemes 300 and 301 that support reference signal monitoring timing updates for idle and inactive UEs according to aspects of the present disclosure are shown. In some examples, reference signal timing update schemes 300 and 301 may implement aspects of wireless communication system 100.

[0149] When the UE 115 is operating in an inactive mode or an idle mode, the UE 115 may be configured with updated opportunities for TRS, CSI-RS, or both. The UE 115 may receive a configuration of an old TRS / CSI-RS opportunity 305 from the base station 105. For example, when the UE 115 establishes a connection with the base station 105, the UE 115 may receive a default configuration of TRS / CSI-RS opportunities. The UE 115 may enter an inactive mode or an idle mode, and the base station 105 may update the TRS / CSI-RS configuration. For example, the TRS / CSI-RS configuration may be changed to include an updated TRS / CSI-RS opportunity 310. The UE 115 may receive an indication of an updated TRS / CSI-RS opportunity 310 when operating in an inactive mode or an idle mode.

[0150] In some cases, TRS / CSI-RS timing updates may be sent via paging. For example, UE 115-a may receive a paging DCI indicating that the TRS / CSI-RS timing has been updated. In some cases, the paging DCI may include a TRS / CSI-RS timing configuration. For example, UE 115 may receive a paging DCI in a paging timing 315-a, and the paging DCI may include an indication of an updated TRS / CSI-RS timing 310. The paging DCI may include a group identifier or a UE identifier. In some cases, if UE 115 has a matching group identifier or UE identifier, UE 115 may decode the paging DCI and obtain an indication of an updated TRS / CSI-RS timing 310. In some cases, if UE 115 is configured for unicast paging, the base station 105 may indicate an updated TRS / CSI-RS timing 310 via a paging DCI.

[0151] In some cases, the TRS / CSI-RS opportunity may be attached to the paging message. For example, the paging DCI may indicate whether to update the TRS configuration, whether to provide the TRS configuration, whether to provide only the TRS configuration in the paging message, or any combination thereof. In some cases, the bits of the traditional paging DCI may be reused for the signaling. In some cases, the reserved bits of the paging DCI may be used for the signaling. In some cases, one bit may be used to indicate whether to update the TRS configuration, whether to provide the TRS configuration, or whether to provide only each of the TRS configurations. In some cases, only one bit may be used to indicate whether to update the TRS configuration, whether to provide the TRS configuration, or whether to provide only the TRS configuration. In some cases, the paging DCI that transmits the TRS / CSI-RS opportunity may be a new type of paging DCI. In some cases, the TRS / CSI-RS opportunity configuration may be attached to the traditional paging DCI.

[0152] The UE 115 may receive the paging DCI in the paging occasion 315-a and monitor the paging message carrying the TRS / CSI-RS occasion configuration. In some cases, if the paging DCI indicates that the paging message includes only the TRS configuration, the UE 115 that is not configured for TRS may avoid monitoring the paging message.

[0153] In some cases, the TRS / CSI-RS timing configuration may be sent via system information. For example, a UE 115 in an idle mode or an inactive mode may monitor a system information change indication in each paging opportunity 315. The UE 115 may receive a paging message and check the system information change indication in the paging message. If the UE 115 does receive a system information change indication, the UE 115 may determine that a change has been made to the system information. The UE 115 may then monitor the system information including the TRS / CSI-RS timing configuration. The system information change indication may be included in a paging message or a paging DCI.

[0154] The periodicity of the updated TRS / CSI-RS opportunity 310 may be configurable. For example, for the reference signal opportunity update scheme 300, the updated TRS / CSI-RS opportunity 310 has the same periodicity as the paging opportunity 315 or the same periodicity as the paging cycle. For the reference signal opportunity update scheme, the updated TRS / CSI-RS opportunity 310 may have a different periodicity from the paging opportunity 315. The periodicity of the updated TRS / CSI-RS opportunity 310 may be configurable regardless of whether the TRS / CSI-RS opportunity configuration is sent through paging or through system information.

[0155] Figure 4 An example of a reference signal timing update scheme 400 that supports reference signal monitoring timing updates for idle and inactive UEs according to aspects of the present disclosure is shown. In some examples, the reference signal timing update scheme 400 may implement aspects of the wireless communication system 100.

[0156] When the UE 115 is operating in an inactive mode or an idle mode, the UE 115 may be configured with an updated opportunity for TRS, CSI-RS, or both. The UE 115 may receive a configuration of an old TRS / CSI-RS opportunity 405 from the base station 105. For example, when the UE 115 establishes a connection with the base station 105, the UE 115 may receive a default configuration of a TRS / CSI-RS opportunity. The UE 115 may enter an inactive mode or an idle mode, and the base station 105 may update the TRS / CSI-RS configuration. For example, the TRS / CSI-RS configuration may be changed to include an updated TRS / CSI-RS opportunity 310. The UE 115 may receive an indication of an updated TRS / CSI-RS opportunity 410 when operating in an inactive mode or an idle mode. In some cases, the UE 115 may receive an indication during a paging opportunity 415 (e.g., a paging opportunity 415-a).

[0157] In some cases, UE 115 may use updated TRS / CSI-RS opportunities 310 for the configured duration. For example, UE 115 may use updated TRS / CSI-RS opportunities 410 until a new configuration of potential TRS / CSI-RS opportunities is provided. If base station 105 reconfigures resources for TRS, CSI-RS, or both, base station 105 may send another reference signal opportunity configuration to UE 115.

[0158] In some cases, the UE 115 may identify a window during which the UE 115 may assume that there is a potential TRS / CSI-RS opportunity. For example, the UE 115 may assume that there is a TRS / CSI-RS opportunity within the first window 420. However, the UE 115 may assume that there is no TRS / CSI-RS opportunity within a second window 425 after the first window 420. If active, the UE 115 may monitor CSI-RS, TRS, or both during the updated TRS / CSI-RS opportunity 410 in the first window 420. In some cases, the base station 105 may send an indication of the first window 420 and the second window 425. For example, the timing information for the updated TRS / CSI-RS opportunity 410 may be included in the TRS / CSI-RS opportunity configuration.

[0159] In some cases, UE 115 may receive an indication from the network to deactivate the TRS / CSI-RS configuration. For example, base station 105 may send a TRS / CSI-RS deactivation message to UE 115. In some cases, UE 115 may revert to previous operation after receiving the deactivation message. For example, UE 115 may use SS / PBCH blocks for time / frequency tracking and radio resource management. In some cases, the deactivation message may be indicated as part of the TRS / CSI-RS timing configuration or in a paging DCI. In some cases, base station 105 may send an activation message for the configuration. For example, base station 105 may switch (e.g., activate and deactivate) the configuration for UE 115. The activation message may also be sent as part of the TRS / CSI-RS timing configuration or in a paging DCI.

[0160] Figure 5 An example of a process flow 500 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. In some examples, the process flow 500 may implement aspects of the wireless communication system 100. The process flow 500 may include a UE 115-b and a base station 105-b, which may be respective examples of a UE 115 and a base station 105 described herein.

[0161] At 505, UE 115-b may receive a reference signal configuration that includes a set of monitoring opportunities for a reference signal associated with a connection mode. Each monitoring opportunity may include time and frequency resources for transmitting a reference signal. In some cases, the monitoring opportunities may be extended across time and frequency resources according to a pattern indicated in the reference signal configuration. In some cases, the opportunities indicated in the reference signal configuration may be referred to as an initial set of reference signal opportunities. The reference signal may be, for example, a CSI-RS, a TRS, or both. In some cases, the reference signal opportunity may refer to an opportunity for a CSI-RS, a TRS, or both.

[0162] At 510, UE 115-b may receive a paging DCI based on a change in a set of monitoring opportunities for a reference signal while UE 115-b is operating in an idle mode or an inactive mode. For example, at 510, UE 115-b may be in an idle mode or an inactive mode, and base station 105-b may have an update for TRS / CSI-RS opportunities. Base station 105-b may send a paging DCI at 510 to indicate the change to UE 115-b. In some cases, at 515, base station 105-b may send a paging message to UE 115-b. For example, the paging DCI may schedule UE 115-b for a paging message.

[0163] At 520, UE 115-b may identify an updated set of monitoring opportunities for reference signals based on receiving paging downlink control information. In some cases, the paging DCI may include an indication of an updated set of monitoring opportunities for reference signals. In some cases, UE 115-b may monitor a paging message based on receiving the paging DCI, and the paging message may include an indication of the updated set of monitoring opportunities.

[0164] At 525, the base station 105-b may send a reference signal using the updated set of transmission opportunities. When the UE 115-b is in connected mode, the UE 115-b may monitor the reference signal at the updated opportunity. At 530, the UE 115-b may perform time and frequency tracking, radio resource management (e.g., RRM), or both based on the reference signal received in the updated set of monitoring opportunities. For example, the UE 115-b may measure a reference signal received power or a reference signal received quality of the reference signal and use the measurement to determine a radio resource management measurement relaxation.

[0165] Figure 6 An example of a process flow 600 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. In some examples, the process flow 600 may implement aspects of the wireless communication system 100. The process flow 600 may include a UE 115-c and a base station 105-c, which may be respective examples of a UE 115 and a base station 105 described herein.

[0166] At 605, UE 115-c may receive a reference signal configuration that includes a set of monitoring opportunities for a reference signal associated with a connection mode. Each monitoring opportunity may include time and frequency resources for transmitting a reference signal. In some cases, the monitoring opportunities may be extended across time and frequency resources according to a pattern indicated in the reference signal configuration. In some cases, the opportunities indicated in the reference signal configuration may be referred to as an initial set of reference signal opportunities. The reference signal may be, for example, a CSI-RS, a TRS, or both. In some cases, the reference signal opportunity may refer to an opportunity for a CSI-RS, a TRS, or both.

[0167] At 610, the UE 115-c may receive a system information change indication based on a change in a set of monitoring opportunities for a reference signal while the UE 115-c is operating in an idle mode or an inactive mode. For example, at 610, the UE 115-c may be in an idle mode or an inactive mode, and the base station 105-c may have an update for a TRS / CSI-RS opportunity. The base station 105-c may send a system information change indication at 610 to indicate the change to the UE 115-c. In some cases, the base station 105-c may send the system information change indication during a paging opportunity of the UE 115-c. For example, the system information change indication may be sent via a paging signal such as a paging DCI or a paging message.

[0168] At 615, the base station 105-c may send a system information message to the UE 115-c. The UE 115-c may receive the system information message indicating an updated set of monitoring opportunities for the reference signal. At 620, the UE 115-c may identify the updated set of monitoring opportunities for the reference signal based on receiving the system information message.

[0169] At 620, the base station 105-c may send a reference signal using the updated set of transmission opportunities. When the UE 115-c is in connected mode, the UE 115-c may monitor the reference signal at the updated opportunity. The UE 115-c may perform time and frequency tracking, radio resource management (e.g., RRM), or both based on the reference signal received in the updated set of monitoring opportunities. For example, the UE 115-c may measure a reference signal received power or a reference signal received quality of the reference signal and use the measurement to determine a radio resource management measurement slack.

[0170] Figure 7 A block diagram 700 of a device 705 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of a UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 720. The device 705 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0171] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal monitoring opportunity updates for idle and inactive UEs, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig.10 Examples of aspects of the transceiver 1020 are described. The receiver 710 may utilize a single antenna or a collection of antennas.

[0172] The communication manager 715 can receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting a reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive paging downlink control information, identify an updated set of monitoring opportunities for the reference signal based on the received paging downlink control information, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0173] The communication manager 715 may also receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting a reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive a system information change indication, receive a system information message indicating an updated set of monitoring opportunities for the reference signal based on receiving the system information change indication, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0174] The communication manager 715 may also receive system information indicating a set of monitoring opportunities for reference signals associated with the connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive a paging signal including a system information change indication, identify an updated set of monitoring opportunities for the reference signal based on receiving updated system information based on the system information change indication in the paging signal, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities. The communication manager 715 may be an example of aspects of the communication manager 1010 described herein.

[0175] The communication manager 715 or its subcomponents may be implemented by hardware, code (e.g., software) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 715 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0176] The communication manager 715 or its subcomponents can be physically located in a variety of locations, including being distributed so that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, the communication manager 715 or its subcomponents can be independent and distinct components according to various aspects of the present disclosure. In some examples, the communication manager 715 or its subcomponents can be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof according to various aspects of the present disclosure.

[0177] Transmitter 720 can transmit signals generated by other components of device 705. In some examples, transmitter 720 can be collocated with receiver 710 in a transceiver module. For example, transmitter 720 can be a reference Fig.10 Examples of aspects of the transceiver 1020 are described. The transmitter 720 may utilize a single antenna or a collection of antennas.

[0178] Figure 8 A block diagram 800 of a device 805 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The device 805 may be an example of aspects of the device 705 or UE 115 as described herein. The device 805 may include a receiver 810, a communication manager 815, and a transmitter 850. The device 805 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0179] The receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal monitoring opportunity updates for idle and inactive UEs, etc.). The information may be passed to other components of the device 805. The receiver 810 may be a reference Fig.10 Examples of aspects of the transceiver 1020 are described. The receiver 810 may utilize a single antenna or a collection of antennas.

[0180] The communication manager 815 can be an example of aspects of the communication manager 715 as described herein. The communication manager 815 can include a monitoring occasion configuration component 820, a paging DCI component 825, an update monitoring occasion component 830, a resource management component 835, a system information change component 840, and a system information message component 845. The communication manager 815 can be an example of aspects of the communication manager 1010 described herein.

[0181] The monitoring opportunity configuration component 820 may receive a reference signal configuration including a monitoring opportunity set of a reference signal associated with a connected mode, wherein each monitoring opportunity includes a time and frequency resource for transmitting the reference signal. The paging DCI component 825 may receive paging downlink control information based on a change in the monitoring opportunity set of the reference signal when operating in an idle mode or an inactive mode. The update monitoring opportunity component 830 may identify an updated monitoring opportunity set of the reference signal based on the received paging downlink control information. The resource management component 835 may perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated monitoring opportunity set.

[0182] The monitoring opportunity configuration component 820 may receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal. The system information change component 840 may receive a system information change indication based on a change in the set of monitoring opportunities for the reference signal when operating in an idle mode or an inactive mode. The system information message component 845 may receive a system information message indicating an updated set of monitoring opportunities for the reference signal based on receiving the system information change indication. The resource management component 835 may perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0183] Transmitter 850 can transmit signals generated by other components of device 805. In some examples, transmitter 850 can be collocated with receiver 810 in a transceiver module. For example, transmitter 850 can be a reference Fig.10 Examples of aspects of the transceiver 1020 are described. The transmitter 850 may utilize a single antenna or a collection of antennas.

[0184] Fig. 9 A block diagram 900 of a communication manager 905 supporting reference signal monitoring occasion updates for idle and inactive UEs according to aspects of the present disclosure is shown. The communication manager 905 may be an example of aspects of the communication manager 715, the communication manager 815, or the communication manager 1010 described herein. The communication manager 905 may include a monitoring occasion configuration component 910, a paging DCI component 915, an update monitoring occasion component 920, a resource management component 925, a paging message component 930, a monitoring deactivation component 935, a system information change component 940, and a system information message component 945. Each of these modules may be in communication with each other directly or indirectly (e.g., via one or more buses).

[0185] Monitoring opportunity configuration component 910 may receive a reference signal configuration, the reference signal configuration comprising a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity comprises a time and frequency resource for transmitting the reference signal. In some examples, a reference signal configuration is received, the reference signal configuration comprising a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity comprises a time and frequency resource for transmitting the reference signal. In some cases, the reference signal comprises a tracking reference signal, a channel state information reference signal, or both.

[0186] The paging DCI component 915 can receive paging downlink control information based on a change in a monitoring opportunity set of a reference signal when operating in an idle mode or an inactive mode. In some cases, the paging downlink control information includes an indication of an updated monitoring opportunity set of a reference signal. In some cases, the paging downlink control information includes a paging identifier, a UE group identifier, or both. In some cases, the paging downlink control information schedules a paging downlink shared channel.

[0187] The update monitoring opportunity component 920 can identify an updated monitoring opportunity set for the reference signal based on the received paging downlink control information. In some examples, the update monitoring opportunity component 920 can apply the configuration associated with the updated monitoring opportunity set until a reconfiguration for the updated monitoring opportunity set is received. In some cases, the period of the updated monitoring opportunity set is the same as or different from the period of the paging opportunity of the UE.

[0188] Resource management component 925 can perform time and frequency tracking or radio resource management measurements based on reference signals received in the updated set of monitoring opportunities. In some examples, resource management component 925 can perform time and frequency tracking or radio resource management measurements based on reference signals received in the updated set of monitoring opportunities.

[0189] In some examples, resource management component 925 can receive a reference signal during the updated set of monitoring opportunities. In some examples, resource management component 925 can measure a signal characteristic of the reference signal. In some examples, resource management component 925 can determine a radio resource management measurement condition based on the signal characteristic.

[0190] System information change component 940 may receive a system information change indication based on a change in a set of monitoring opportunities for reference signals while operating in an idle mode or an inactive mode. System information message component 945 may receive a system information message indicating an updated set of monitoring opportunities for reference signals based on receiving the system information change indication.

[0191] The paging message component 930 can monitor a paging message based on receiving paging downlink control information, the paging message including an indication of an updated monitoring opportunity set. In some cases, the paging downlink control information includes a bit indicating that the paging message includes an updated configuration for reference signals only. In some cases, the paging downlink control information includes a bit indicating that the paging message includes an indication of an updated monitoring opportunity set. In some cases, the bit indicating that the paging message includes an indication of an updated monitoring opportunity set corresponds to a reserved bit. In some cases, the bit indicating that the paging message includes an indication of an updated monitoring opportunity set corresponds to a reused bit. In some cases, the paging downlink control information includes a bit indicating that the paging message includes a configuration for tracking reference signals but does not include a configuration for channel state information reference signals.

[0192] Monitoring deactivation component 935 can apply the configuration associated with the updated set of monitoring opportunities until a reconfiguration for the updated set of monitoring opportunities is received.

[0193] In some examples, monitoring deactivation component 935 can identify a reference signal opportunity window, wherein the UE assumes that a reference signal is transmitted by the base station at a reference signal opportunity within the reference signal opportunity window. In some examples, monitoring deactivation component 935 can monitor the reference signal in an updated set of monitoring opportunities within the reference signal opportunity window. In some examples, monitoring deactivation component 935 can receive a deactivation message for the updated set of monitoring opportunities from the base station.

[0194] In some examples, monitoring deactivation component 935 can avoid monitoring reference signals in an updated monitoring opportunity set after receiving the deactivation message. In some examples, monitoring deactivation component 935 can monitor synchronization signal blocks for time and frequency tracking and radio resource management after receiving the deactivation message. In some cases, the deactivation message is received in a reconfiguration message for the monitoring opportunity set or in downlink control information.

[0195] Fig.10 A diagram of a system 1000 including a device 1005 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The device 1005 may be an example of or include components of a device 705, a device 805, or a UE 115 as described herein. The device 1005 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may be in electronic communication via one or more buses (e.g., a bus 1045).

[0196] The communication manager 1010 can receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting a reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive paging downlink control information, identify an updated set of monitoring opportunities for the reference signal based on the received paging downlink control information, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0197] The communication manager 1010 may also receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting a reference signal, change the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive a system information change indication, receive a system information message indicating an updated set of monitoring opportunities for the reference signal based on receiving the system information change indication, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0198] The communication manager 1010 may also receive system information indicating a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting a reference signal, a change in the set of monitoring opportunities based on the reference signal when operating in an idle mode or an inactive mode, receive a paging signal including a system information change indication, identify an updated set of monitoring opportunities for the reference signal based on received updated system information based on the system information change indication in the paging signal, and perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated set of monitoring opportunities.

[0199] I / O controller 1015 can manage input and output signals for device 1005. I / O controller 1015 can also manage peripheral devices that are not integrated into device 1005. In some cases, I / O controller 1015 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1015 can utilize a computer such as a Or another known operating system. In other cases, I / O controller 1015 can be represented or interacted with by a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1015 can be implemented as part of a processor. In some cases, a user can interact with device 1005 via I / O controller 1015 or via hardware components controlled by I / O controller 1015.

[0200] The transceiver 1020 can communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 1020 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. The transceiver 1020 can also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0201] In some cases, a wireless device may include a single antenna 1025. However, in some cases, a device may have more than one antenna 1025, which may be capable of transmitting or receiving multiple wireless transmissions simultaneously.

[0202] Memory 1030 may include random access memory (RAM) and read-only memory (ROM). Memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed (directly, after compilation, after conversion, etc.) by one or more processors (e.g., processor 1040), cause the one or more processors to perform various functions described herein. In some cases, memory 1030 may contain a basic input / output system (BIOS), etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0203] Processor 1040 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1040 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks to support reference signal monitoring opportunity updates for idle and inactive UEs).

[0204] The code 1035 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications. The code 1035 may be stored in a non-transitory computer-readable medium such as a system memory or other type of memory. In some cases, the code 1035 may not be directly executed by the processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0205] Fig.11A block diagram 1100 of a device 1105 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of a base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1120. The device 1105 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0206] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal monitoring opportunity updates for idle and inactive UEs, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.14 Examples of aspects of transceiver 1420 are described. Receiver 1110 may utilize a single antenna or a collection of antennas.

[0207] The communication manager 1115 may send a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to the UE, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal, determine an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode, and send the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode. The communication manager 1115 may also send a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to the UE, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal, determine an updated set of transmission opportunities for the reference signal based on a change in the set of transmission opportunities, send a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode, send a system information message indicating an updated set of transmission opportunities for the reference signal, and send the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode. The communication manager 1115 may be an example of aspects of the communication manager 1410 described herein.

[0208] The communication manager 1115 or its subcomponents may be implemented by hardware, code (e.g., software) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1115 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.

[0209] The communication manager 1115 or its subcomponents can be physically located in a variety of locations, including being distributed so that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, the communication manager 1115 or its subcomponents can be independent and distinct components according to various aspects of the present disclosure. In some examples, the communication manager 1115 or its subcomponents can be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof according to various aspects of the present disclosure.

[0210] Transmitter 1120 can transmit signals generated by other components of device 1105. In some examples, transmitter 1120 can be collocated with receiver 1110 in a transceiver module. For example, transmitter 1120 can be a reference Fig.14 Examples of aspects of the transceiver 1420 are described. The transmitter 1120 may utilize a single antenna or a collection of antennas.

[0211] Fig.12 A block diagram 1200 of a device 1205 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The device 1205 may be an example of aspects of the device 1105 or base station 105 as described herein. The device 1205 may include a receiver 1210, a communication manager 1215, and a transmitter 1250. The device 1205 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0212] The receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to reference signal monitoring opportunity updates for idle and inactive UEs, etc.). The information may be passed to other components of the device 1205. The receiver 1210 may be a reference Fig.14 Examples of aspects of transceiver 1420 are described. Receiver 1210 may utilize a single antenna or a collection of antennas.

[0213] The communication manager 1215 may be an example of aspects of the communication manager 1115 as described herein. The communication manager 1215 may include a monitoring occasion configuration component 1220, an update monitoring occasion component 1225, a paging DCI component 1230, a reference signal transmission component 1235, a system information change component 1240, and a system information message component 1245. The communication manager 1215 may be an example of aspects of the communication manager 1410 described herein.

[0214] The monitoring opportunity configuration component 1220 may send a reference signal configuration to the UE, the reference signal configuration comprising a set of transmission opportunities for a reference signal associated with the connected mode, wherein each transmission opportunity comprises a time and frequency resource for sending the reference signal. The updating monitoring opportunity component 1225 may determine an updated set of transmission opportunities for the reference signal based on the change in the set of transmission opportunities. The paging DCI component 1230 may send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode. The reference signal sending component 1235 may send a reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0215] The monitoring opportunity configuration component 1220 may send a reference signal configuration to the UE, the reference signal configuration comprising a set of transmission opportunities for a reference signal associated with the connected mode, wherein each transmission opportunity comprises a time and frequency resource for sending the reference signal. The updating monitoring opportunity component 1225 may determine an updated set of transmission opportunities for the reference signal based on the change in the set of transmission opportunities. The system information change component 1240 may send a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode. The system information message component 1245 may send a system information message indicating an updated set of transmission opportunities for the reference signal. The reference signal sending component 1235 may send the reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode.

[0216] Transmitter 1250 can transmit signals generated by other components of device 1205. In some examples, transmitter 1250 can be collocated with receiver 1210 in a transceiver module. For example, transmitter 1250 can be a reference Fig.14 Examples of aspects of the transceiver 1420 are described. The transmitter 1250 may utilize a single antenna or a collection of antennas.

[0217] Fig.13 A block diagram 1300 of a communication manager 1305 supporting reference signal monitoring occasion updates for idle and inactive UEs according to aspects of the present disclosure is shown. The communication manager 1305 may be an example of aspects of the communication manager 1115, the communication manager 1215, or the communication manager 1410 described herein. The communication manager 1305 may include a monitoring occasion configuration component 1310, an update monitoring occasion component 1315, a paging DCI component 1320, a reference signal transmission component 1325, a paging message component 1330, a monitoring deactivation component 1335, a monitoring occasion configuration component 1340, a system information change component 1345, and a system information message component 1350. Each of these modules may be in communication with each other directly or indirectly (e.g., via one or more buses).

[0218] Monitoring opportunity configuration component 1310 can send a reference signal configuration to the UE, the reference signal configuration including a set of transmission opportunities for a reference signal associated with the connected mode, wherein each transmission opportunity includes time and frequency resources for sending the reference signal. In some examples, a reference signal configuration is sent to the UE, the reference signal configuration including a set of transmission opportunities for a reference signal associated with the connected mode, wherein each transmission opportunity includes time and frequency resources for sending the reference signal.

[0219] Update monitoring opportunity component 1315 can determine an updated set of transmission opportunities for reference signals based on the change in the set of transmission opportunities.In some examples, update monitoring opportunity component 1315 can determine an updated set of transmission opportunities for reference signals based on the change in the set of transmission opportunities.

[0220] In some examples, the update monitoring opportunity component 1315 can send a reconfiguration for the updated transmission opportunity set, wherein a reference signal is sent based on the reconfiguration after sending the reconfiguration. In some cases, the period of the updated transmission opportunity set corresponds to the period of the paging opportunity of the UE. In some cases, the period of the updated transmission opportunity set is the same as or different from the period of the paging opportunity of the UE.

[0221] The paging DCI component 1320 can send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode. In some cases, the paging downlink control information includes an indication of an updated transmission opportunity set for a reference signal. In some cases, the paging downlink control information includes a paging identifier, a UE group identifier, or both. In some cases, the paging downlink control information schedules a paging downlink shared channel.

[0222] The reference signal transmission component 1325 can transmit the reference signal in the updated transmission opportunity set when the UE is operating in the connected mode. The system information message component 1350 can transmit a system information message indicating the updated transmission opportunity set of the reference signal. The system information change component 1345 can transmit a system information change indication to the UE based on the change when the UE is operating in the inactive mode or the idle mode.

[0223] The paging message component 1330 can send a paging message based on sending paging downlink control information, the paging message including an indication of an updated set of transmission opportunities. In some cases, the paging downlink control information includes a bit indicating that the configuration includes an updated configuration for reference signals only. In some cases, the paging downlink control information includes a bit indicating that the paging message includes an indication of an updated set of transmission opportunities.

[0224] In some cases, a bit indicating that the paging message includes an indication of an updated set of transmission opportunities corresponds to a reserved bit. In some cases, a bit indicating that the paging message includes an indication of an updated set of transmission opportunities corresponds to a reused bit. In some cases, the paging downlink control information includes a bit indicating that the paging message includes a configuration for a tracking reference signal but does not include a configuration for a channel state information reference signal.

[0225] The monitoring deactivation component 1335 can send a deactivation message to the UE for the updated transmission opportunity set. In some cases, the deactivation message is sent in a reconfiguration message for the transmission opportunity set or in downlink control information. In some cases, the reference signal includes a tracking reference signal, a channel state information reference signal, or both.

[0226] Fig.14 A diagram of a system 1400 including a device 1405 supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The device 1405 may be an example of or include components of the device 1105, device 1205, or base station 105 as described herein. The device 1405 may include components for two-way voice and data communications, including components for sending and receiving communications, including a communication manager 1410, a network communication manager 1415, a transceiver 1420, an antenna 1425, a memory 1430, a processor 1440, and an inter-station communication manager 1445. These components may be in electronic communication via one or more buses (e.g., bus 1450).

[0227] The communication manager 1410 can send a reference signal configuration including a transmission opportunity set of a reference signal associated with a connected mode to the UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal, determine an updated transmission opportunity set of the reference signal based on a change of the transmission opportunity set, send paging downlink control information based on the change when the UE operates in an inactive mode or an idle mode, and send the reference signal in the updated transmission opportunity set when the UE operates in a connected mode.

[0228] The communication manager 1410 may also send a reference signal configuration including a set of transmission timings for a reference signal associated with a connected mode to the UE, wherein each transmission timing includes time and frequency resources for sending the reference signal, determine an updated set of transmission timings for the reference signal based on a change in the set of transmission timings, send a system information change indication to the UE based on the change when the UE operates in an inactive mode or an idle mode, send a system information message indicating an updated set of transmission timings for the reference signal, and send the reference signal in the updated set of transmission timings when the UE operates in a connected mode.

[0229] The network communications manager 1415 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1415 may manage the delivery of data communications for client devices such as one or more UEs 115.

[0230] The transceiver 1420 may communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 1420 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1420 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0231] In some cases, a wireless device may include a single antenna 1425. However, in some cases, a device may have more than one antenna 1425, which may be capable of transmitting or receiving multiple wireless transmissions simultaneously.

[0232] Memory 1430 may include RAM, ROM, or a combination thereof. Memory 1430 may store computer readable code 1435, which includes instructions that, when executed by a processor (e.g., processor 1440), cause the device to perform various functions described herein. In some cases, memory 1430 may contain BIOS, etc., which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0233] Processor 1440 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1440 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1440. Processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1430) to cause device 1405 to perform various functions (e.g., functions or tasks to support reference signal monitoring opportunity updates for idle and inactive UEs).

[0234] The inter-site communication manager 1445 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in collaboration with other base stations 105. For example, the inter-site communication manager 1445 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1445 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0235] The code 1435 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications. The code 1435 may be stored in a non-transitory computer-readable medium such as a system memory or other type of memory. In some cases, the code 1435 may not be directly executed by the processor 1440, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0236] Fig.15 A flow chart illustrating a method 1500 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by the UE 115 or components thereof, as described herein. For example, the operations of the method 1500 may be implemented by the reference signal monitoring opportunity updater. Figures 7 to 10 The communication manager described herein performs. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0237] At 1505, the UE may receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed by reference to Figures 7 to 10 The monitoring opportunity configuration component is executed.

[0238] At 1510, the UE may receive paging downlink control information based on a change in a monitoring opportunity set of a reference signal when operating in an idle mode or an inactive mode. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed by reference to Figures 7 to 10 The paging DCI component is used to perform the operation.

[0239] At 1515, the UE may identify an updated monitoring opportunity set for the reference signal based on the received paging downlink control information. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed by reference to Figures 7 to 10 The update monitoring opportunity component is used to perform the above operation.

[0240] At 1520, the UE may perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated monitoring opportunity set. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed by reference to Figures 7 to 10 The resource management component is used to perform the above operations.

[0241] Fig.16 A flow chart illustrating a method 1600 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a UE 115 or a component thereof, as described herein. For example, the operations of the method 1600 may be implemented by a reference signal monitoring opportunity update for idle and inactive UEs according to aspects of the present disclosure. Figures 7 to 10 The communication manager described herein performs. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0242] At 1605, the UE may receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed by reference to Figures 7 to 10 The monitoring opportunity configuration component is executed.

[0243] At 1610, the UE may receive paging downlink control information based on a change in a monitoring opportunity set of a reference signal when operating in an idle mode or an inactive mode. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed by reference to Figures 7 to 10 The paging DCI component is used to perform the operation.

[0244] At 1615, the UE may monitor a paging message based on receiving the paging downlink control information, the paging message including an indication of an updated monitoring occasion set. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be described with reference to Figures 7 to 10 The paging message component is used to execute.

[0245] At 1620, the UE may identify an updated monitoring opportunity set for the reference signal based on the received paging downlink control information. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be performed by reference to Figures 7 to 10 The update monitoring opportunity component is used to perform the above operation.

[0246] At 1625, the UE may perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated monitoring opportunity set. The operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be performed by reference to Figures 7 to 10 The resource management component is used to perform the above operations.

[0247] Fig.17 A flow chart illustrating a method 1700 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by a UE 115 or a component thereof, as described herein. For example, the operations of the method 1700 may be implemented by a reference signal monitoring opportunity update for idle and inactive UEs according to aspects of the present disclosure. Figures 7 to 10 The communication manager described herein performs. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0248] At 1705, the UE may receive a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed by reference to Figures 7 to 10 The monitoring opportunity configuration component is executed.

[0249] At 1710, the UE may receive a system information change indication based on a change in a set of monitoring opportunities for a reference signal when operating in an idle mode or an inactive mode. The operations of 1710 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1710 may be performed by reference to Figures 7 to 10 The system information change component is executed.

[0250] At 1715, the UE may receive a system information message indicating an updated monitoring opportunity set for the reference signal based on receiving the system information change indication. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed by reference to Figures 7 to 10 The system information message component is used to execute.

[0251] At 1720, the UE may perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated monitoring opportunity set. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be performed by reference to Figures 7 to 10 The resource management component is used to perform the above operations.

[0252] Fig.18 A flow chart illustrating a method 1800 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a base station 105 or a component thereof, as described herein. For example, the operations of the method 1800 may be implemented by a reference signal monitoring opportunity update for idle and inactive UEs according to aspects of the present disclosure. Figure 11 to Figure 14 The communication manager described herein is executed. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0253] At 1805, the base station may send a reference signal configuration to the UE, the reference signal configuration including a set of transmission opportunities for a reference signal associated with the connection mode, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed by reference to Figures 11 to 14 The monitoring opportunity configuration component is executed.

[0254] At 1810, the base station may determine an updated transmission opportunity set for the reference signal based on the change in the transmission opportunity set. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed by reference to Figure 11 to Figure 14 The update monitoring opportunity component is used to perform the above operation.

[0255] At 1815, the base station may send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be described by reference to Figure 11 to Figure 14 The paging DCI component is used to perform the operation.

[0256] At 1820, the base station may send a reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed by reference to Figure 11 to Figure 14 The reference signal sending component is used to perform the operation.

[0257] Fig.19A flow chart illustrating a method 1900 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 1900 may be implemented by a base station 105 or a component thereof, as described herein. For example, the operations of the method 1900 may be implemented by a reference signal monitoring opportunity update for idle and inactive UEs according to aspects of the present disclosure. Figure 11 to Figure 14 The communication manager described herein is executed. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0258] At 1905, the base station may send a reference signal configuration to the UE, the reference signal configuration including a set of transmission opportunities for a reference signal associated with the connection mode, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal. The operation of 1905 may be performed according to the methods described herein. In some examples, aspects of the operation of 1905 may be performed by reference to Figures 11 to 14 The monitoring opportunity configuration component is executed.

[0259] At 1910, the base station may determine an updated transmission opportunity set for the reference signal based on the change in the transmission opportunity set. The operations of 1910 may be performed according to the methods described herein. In some examples, aspects of the operations of 1910 may be performed by reference to Figure 11 to Figure 14 The update monitoring opportunity component is used to perform the above operation.

[0260] At 1915, the base station may send paging downlink control information based on the change when the UE is operating in an inactive mode or an idle mode. The operations of 1915 may be performed according to the methods described herein. In some examples, aspects of the operations of 1915 may be described by reference to Figure 11 to Figure 14 The paging DCI component is used to perform the operation.

[0261] At 1920, the base station may send a paging message based on sending the paging downlink control information, the paging message including an indication of the updated transmission opportunity set. The operations of 1920 may be performed according to the methods described herein. In some examples, aspects of the operations of 1920 may be described with reference to Figure 11 to Figure 14 The paging message component is used to execute.

[0262] At 1925, the base station may send a reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode. The operations of 1925 may be performed according to the methods described herein. In some examples, aspects of the operations of 1925 may be performed by reference to Figure 11 to Figure 14 The reference signal sending component is used to perform the operation.

[0263] Fig. 20A flow chart illustrating a method 2000 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 2000 may be implemented by a base station 105 or components thereof, as described herein. For example, the operations of the method 2000 may be implemented by a reference signal monitoring opportunity update for idle and inactive UEs according to aspects of the present disclosure. Figure 11 to Figure 14 The communication manager described herein is executed. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0264] At 2005, the base station may send a reference signal configuration to the UE, the reference signal configuration including a set of transmission opportunities for a reference signal associated with the connection mode, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal. The operation of 2005 may be performed according to the method described herein. In some examples, aspects of the operation of 2005 may be performed by reference to Figures 11 to 14 The monitoring opportunity configuration component is executed.

[0265] At 2010, the base station may determine an updated transmission opportunity set for the reference signal based on the change in the transmission opportunity set. The operations of 2010 may be performed according to the methods described herein. In some examples, aspects of the operations of 2010 may be performed by reference to Figure 11 to Figure 14 The update monitoring opportunity component is used to perform the above operation.

[0266] At 2015, the base station may send a system information change indication to the UE based on the change when the UE is operating in an inactive mode or an idle mode. The operation of 2015 may be performed according to the method described herein. In some examples, aspects of the operation of 2015 may be described by reference to Figure 11 to Figure 14 The system information change component is executed.

[0267] At 2020, the base station may send a system information message indicating an updated transmission opportunity set for the reference signal. The operations at 2020 may be performed according to the methods described herein. In some examples, aspects of the operations at 2020 may be performed by reference to Figure 11 to Figure 14 The system information message component is used to execute.

[0268] At 2025, the base station may send a reference signal in the updated transmission opportunity set when the UE operates in the connected mode. The operation of 2025 may be performed according to the method described herein. In some examples, aspects of the operation of 2025 may be performed by reference to Figure 11 to Figure 14 The reference signal sending component is used to perform the operation.

[0269] Fig.21A flow chart illustrating a method 2100 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 2100 may be implemented by the UE 115 or a component thereof, as described herein. For example, the operations of the method 2100 may be performed by a communication manager, as described in reference to Figures 7 to 10 In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

[0270] At 2105, the UE may receive system information indicating a set of monitoring opportunities for a reference signal associated with the connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal. The operations of 2105 may be performed according to the methods described herein. In some examples, aspects of the operations of 2105 may be performed by reference to Figures 7 to 10 The monitoring opportunity configuration component is executed.

[0271] At 2110, the UE may receive a paging signal including a system information change indication based on a change in a monitoring opportunity set of a reference signal when operating in an idle mode or an inactive mode. The operations of 2110 may be performed according to the methods described herein. In some examples, aspects of the operations of 2110 may be performed as described in reference to Figures 7 to 10 The paging DCI component is used to perform the operation.

[0272] At 2115, the UE may identify an updated set of monitoring opportunities for the reference signal based on the updated system information received based on the system information change indication in the paging signal. In some examples, aspects of the operation of 2115 may be performed by the reference signal. Figures 7 to 10 The update monitoring opportunity component is used to perform the above operation.

[0273] At 2120, the UE may perform time and frequency tracking or radio resource management measurements based on the reference signal received in the updated monitoring opportunity set. The operations of 2120 may be performed according to the methods described herein. In some examples, aspects of the operations of 2120 may be performed by reference to Figures 7 to 10 The resource component is executed.

[0274] Fig. 22 A flow chart illustrating a method 2200 for supporting reference signal monitoring opportunity updates for idle and inactive UEs according to aspects of the present disclosure is shown. The operations of the method 2200 may be implemented by the base station 105 or components thereof, as described herein. For example, the operations of the method 2200 may be performed by a communication manager, as described in reference to Figure 11 to Figure 14In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

[0275] At 2205, the base station may send a first system information message indicating a set of transmission opportunities for a reference signal associated with the connection mode, wherein each transmission opportunity includes a time and frequency resource for sending the reference signal. The operation of 2205 may be performed according to the method described herein. In some examples, aspects of the operation of 2205 may be performed by reference to Figure 11 to Figure 14 The system information message component is used to execute.

[0276] At 2210, the base station may determine an updated transmission opportunity set for the reference signal based on the change in the transmission opportunity set. The operations of 2210 may be performed according to the methods described herein. In some examples, aspects of the operations of 2210 may be performed by reference to Figure 11 to Figure 14 The update monitoring opportunity component is used to perform the above operation.

[0277] At 2215, the base station may send a paging signal including a system information change indication based on the change when the UE is operating in an inactive mode or an idle mode. The operation of 2215 may be performed according to the methods described herein. In some examples, aspects of the operation of 2215 may be described by reference to Figure 11 to Figure 14 The paging DCI component is used to perform the operation.

[0278] At 2220, the base station may send a second system information message indicating an updated set of transmission opportunities for the reference signal. The operations of 2220 may be performed according to the methods described herein. In some examples, aspects of the operations of 2220 may be performed by reference to Figure 11 to Figure 14 The system information message component is used to execute.

[0279] At 2225, the base station may send a reference signal in the updated set of transmission opportunities when the UE is operating in the connected mode. The operations of 2225 may be performed according to the methods described herein. In some examples, aspects of the operations of 2225 may be performed by reference to Figures 11 to 14 The signal sending component is used to execute.

[0280] It should be noted that the methods described herein describe possible implementations, and that operations and steps may be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0281] The following provides an overview of aspects of the present disclosure:

[0282] Aspect 1: A method for wireless communication at a UE, comprising: receiving a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal; receiving paging downlink control information based at least in part on a change in the set of monitoring opportunities for the reference signal when operating in an idle mode or an inactive mode; identifying an updated set of monitoring opportunities for the reference signal based at least in part on the received paging downlink control information; and performing time and frequency tracking or radio resource management measurements based at least in part on the reference signal received in the updated set of monitoring opportunities.

[0283] Aspect 2: The method according to aspect 1, wherein the paging downlink control information includes an indication of an updated monitoring opportunity set of a reference signal.

[0284] Aspect 3: The method according to aspect 2, wherein the paging downlink control information includes a paging identifier, a UE group identifier, or both.

[0285] Aspect 4: The method according to any one of aspects 2 to 3, wherein the paging downlink control information schedules a paging downlink shared channel.

[0286] Aspect 5: The method according to any one of aspects 1 to 4, further comprising: monitoring a paging message based at least in part on receiving paging downlink control information, the paging message including an indication of an updated set of monitoring occasions.

[0287] Aspect 6: The method according to aspect 5, wherein the paging downlink control information includes a bit indicating that the paging message includes an update configuration only for a reference signal.

[0288] Aspect 7: The method according to any one of aspects 5 to 6, wherein the paging downlink control information comprises a bit indicating that the paging message comprises an indication of an updated monitoring occasion set.

[0289] Aspect 8: The method according to aspect 7, wherein the bit indicating that the paging message includes an indication of an updated monitoring occasion set corresponds to a reserved bit.

[0290] Aspect 9: The method according to any one of aspects 7 to 8, wherein the bit indicating that the paging message includes an indication of an updated set of monitoring occasions corresponds to a reused bit.

[0291] Aspect 10: The method according to any one of aspects 5 to 9, wherein the paging downlink control information includes a bit indicating that the paging message includes a configuration for a tracking reference signal but does not include a configuration for a channel state information reference signal.

[0292] Aspect 11: The method according to any one of aspects 1 to 10, further comprising: applying a configuration associated with the updated set of monitoring opportunities until a reconfiguration for the updated set of monitoring opportunities is received.

[0293] Aspect 12: The method according to any one of Aspects 1 to 11 further includes: identifying a reference signal opportunity window, wherein the UE assumes that a reference signal is sent by the base station at a reference signal opportunity within the reference signal opportunity window; and monitoring the reference signal in an updated monitoring opportunity set within the reference signal opportunity window.

[0294] Aspect 13: The method according to any one of aspects 1 to 12 further comprises: receiving a deactivation message for an updated monitoring opportunity set from a base station; and after receiving the deactivation message, avoiding monitoring a reference signal in the updated monitoring opportunity set.

[0295] Aspect 14: The method according to Aspect 13 further includes: after receiving the deactivation message, monitoring a synchronization signal block for time and frequency tracking and radio resource management.

[0296] Aspect 15: The method according to any one of aspects 13 to 14, wherein the deactivation message is received in a reconfiguration message for a monitoring opportunity set or in downlink control information.

[0297] Aspect 16: The method according to any one of aspects 1 to 15, wherein a period of the updated monitoring occasion set is the same as or different from a period of a paging occasion of the UE.

[0298] Aspect 17: The method according to any one of aspects 1 to 16, further comprising: receiving a reference signal during the updated set of monitoring opportunities; measuring a signal characteristic of the reference signal; and determining a radio resource management measurement condition based at least in part on the signal characteristic.

[0299] Aspect 18: The method according to any one of aspects 1 to 17, wherein the reference signal comprises a tracking reference signal, a channel state information reference signal, or both.

[0300] Aspect 19: A method for performing wireless communications at a UE, comprising: receiving a reference signal configuration including a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal; when operating in an idle mode or an inactive mode, receiving a system information change indication based at least in part on a change in the set of monitoring opportunities for the reference signal; receiving a system information message indicating an updated set of monitoring opportunities for the reference signal based at least in part on receiving the system information change indication; and performing time and frequency tracking or radio resource management measurements based at least in part on the reference signal received in the updated set of monitoring opportunities.

[0301] Aspect 20: The method according to Aspect 19, further comprising: applying the configuration associated with the updated set of monitoring opportunities until a reconfiguration for the updated set of monitoring opportunities is received.

[0302] Aspect 21: A method according to any one of Aspects 19 to 20, wherein monitoring a reference signal further comprises: identifying a reference signal timing window, wherein the UE assumes that a reference signal is sent by a base station at a reference signal timing within the reference signal timing window; and monitoring the reference signal in an updated monitoring timing set within the reference signal timing window.

[0303] Aspect 22: The method according to any one of aspects 19 to 21 further comprises: receiving a deactivation message for an updated monitoring opportunity set from a base station; and after receiving the deactivation message, avoiding monitoring a reference signal in the updated monitoring opportunity set.

[0304] Aspect 23: The method according to Aspect 22 further includes: after receiving the deactivation message, monitoring a synchronization signal block for time and frequency tracking and radio resource management.

[0305] Aspect 24: The method according to any one of aspects 22 to 23, wherein the deactivation message is received in a reconfiguration message for a monitoring opportunity set or in downlink control information.

[0306] Aspect 25: The method according to any one of aspects 19 to 24, wherein a period of the updated monitoring occasion set is the same as or different from a period of a paging occasion of the UE.

[0307] Aspect 26: The method according to any one of aspects 19 to 25, further comprising: receiving a reference signal during the updated set of monitoring opportunities; measuring a signal characteristic of the reference signal; and determining a radio resource management measurement condition based at least in part on the signal characteristic.

[0308] Aspect 27: The method according to any one of aspects 19 to 26, wherein the reference signal comprises a tracking reference signal, a channel state information reference signal, or both.

[0309] Aspect 28: A method for performing wireless communications at a base station, comprising: sending a reference signal configuration including a set of transmission opportunities for a reference signal associated with a connected mode to a UE, wherein each transmission opportunity includes time and frequency resources for sending the reference signal; determining an updated set of transmission opportunities for the reference signal based at least in part on a change in the set of transmission opportunities; sending paging downlink control information based at least in part on the change when the UE is operating in an inactive mode or an idle mode; and sending the reference signal in the updated set of transmission opportunities when the UE is operating in a connected mode.

[0310] Aspect 29: The method according to aspect 28, wherein the paging downlink control information includes an indication of an updated transmission opportunity set of a reference signal.

[0311] Aspect 30: The method according to aspect 29, wherein the paging downlink control information includes a paging identifier, a UE group identifier, or both.

[0312] Aspect 31: The method according to any one of aspects 29 to 30, wherein the paging downlink control information schedules a paging downlink shared channel.

[0313] Aspect 32: The method according to any one of aspects 28 to 31, further comprising: sending a paging message based at least in part on sending paging downlink control information, the paging message including an indication of the updated transmission opportunity set.

[0314] Aspect 33: The method according to aspect 32, wherein the paging downlink control information includes a bit indicating that the configuration includes an update configuration for reference signals only.

[0315] Aspect 34: A method for wireless communication at a UE, comprising: receiving system information indicating a set of monitoring opportunities for a reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the reference signal; when operating in an idle mode or an inactive mode, receiving a paging signal including a system information change indication based at least in part on a change in the set of monitoring opportunities for the reference signal; identifying an updated set of monitoring opportunities for the reference signal based at least in part on received updated system information based on the system information change indication in the paging signal; and performing time and frequency tracking or radio resource management measurements based at least in part on the reference signal received in the updated set of monitoring opportunities.

[0316] Aspect 35: The method according to aspect 34, wherein the paging signal comprises an indication of an updated set of monitoring occasions for the reference signal.

[0317] Aspect 36: The method according to Aspect 35, wherein the paging signal includes a paging identifier, a UE group identifier, or both.

[0318] Aspect 37: The method according to any one of aspects 35 to 36, wherein the paging signal schedules a paging downlink shared channel.

[0319] Aspect 38: The method according to any one of aspects 34 to 37, further comprising: monitoring a paging message based at least in part on receiving a paging signal, the paging message comprising an indication of an updated set of monitoring occasions.

[0320] Aspect 39: The method according to aspect 38, wherein the paging signal includes a bit indicating that the paging message includes an updated configuration for reference signals only.

[0321] Aspect 40: The method according to any of aspects 38 to 39, wherein the paging signal comprises a bit indicating that the paging message comprises an indication of an updated set of monitoring occasions.

[0322] Aspect 41: The method according to aspect 40, wherein the bit indicating that the paging message includes an indication of an updated set of monitoring occasions corresponds to a reserved bit.

[0323] Aspect 42: The method according to any one of aspects 40 to 41, wherein the bits indicating that the paging message includes an indication of an updated set of monitoring occasions correspond to reused bits.

[0324] Aspect 43: The method according to any one of aspects 38 to 42, wherein the paging signal comprises a bit indicating that the paging message comprises a configuration for a tracking reference signal but does not comprise a configuration for a channel state information reference signal.

[0325] Aspect 44: The method according to any one of aspects 34 to 43, further comprising: applying the configuration associated with the updated set of monitoring opportunities until a reconfiguration for the updated set of monitoring opportunities is received.

[0326] Aspect 45: The method according to any one of Aspects 34 to 44 further includes: identifying a reference signal opportunity window, wherein the UE assumes that a reference signal is sent by the base station at a reference signal opportunity within the reference signal opportunity window; and monitoring the reference signal in an updated monitoring opportunity set within the reference signal opportunity window.

[0327] Aspect 46: The method according to any one of aspects 34 to 45 further comprises: receiving a deactivation message for an updated monitoring opportunity set from a base station; and avoiding monitoring a reference signal in the updated monitoring opportunity set after receiving the deactivation message.

[0328] Aspect 47: The method according to Aspect 46 further includes: after receiving the deactivation message, monitoring a synchronization signal block for time and frequency tracking and radio resource management.

[0329] Aspect 48: The method according to any one of aspects 46 to 47, wherein the deactivation message is received in a reconfiguration message for a monitoring opportunity set or in downlink control information.

[0330] Aspect 49: The method according to any one of aspects 34 to 48, wherein a period of the updated monitoring occasion set is the same as or different from a period of a paging occasion of the UE.

[0331] Aspect 50: The method according to any one of aspects 34 to 49, further comprising: receiving a reference signal during the updated set of monitoring opportunities; measuring a signal characteristic of the reference signal; and determining a radio resource management measurement condition based at least in part on the signal characteristic.

[0332] Aspect 51: The method according to any one of aspects 34 to 50, wherein the reference signal comprises a tracking reference signal, a channel state information reference signal, or both.

[0333] Aspect 52: The method according to any one of aspects 34 to 51 further comprises: receiving a deactivation message for an updated monitoring opportunity set from a base station; and avoiding monitoring a reference signal in the updated monitoring opportunity set after receiving the deactivation message.

[0334] Aspect 53: A method for performing wireless communications at a base station, comprising: sending a first system information message indicating a set of transmission opportunities for a reference signal associated with a connected mode, wherein each transmission opportunity includes time and frequency resources for sending the reference signal; determining an updated set of transmission opportunities for the reference signal based at least in part on a change in the set of transmission opportunities; when the UE is operating in an inactive mode or an idle mode, sending a paging signal including a system information change indication to the UE based at least in part on the change; sending a second system information message indicating an updated set of transmission opportunities for the reference signal; and when the UE is operating in a connected mode, sending the reference signal in the updated set of transmission opportunities.

[0335] Aspect 54: The method according to aspect 53, wherein the paging signal comprises an indication of an updated set of transmission opportunities for the reference signal.

[0336] Aspect 55: The method according to any one of aspects 53 to 54, further comprising: sending a paging message based at least in part on sending a paging signal, the paging message comprising an indication of the updated set of transmission opportunities.

[0337] Aspect 56: The method according to aspect 55, wherein the paging signal comprises a bit indicating that the configuration comprises an updated configuration for reference signals only.

[0338] Aspect 57: The method according to any one of aspects 55 to 56, wherein the paging signal comprises a bit indicating that the paging message comprises an indication of an updated set of transmission opportunities.

[0339] Aspect 58: The method according to aspect 57, wherein the bit indicating that the paging message includes an indication of an updated transmission opportunity set corresponds to a reserved bit.

[0340] Aspect 59: The method according to any one of aspects 57 to 58, wherein the bits indicating that the paging message includes an indication of an updated set of transmission opportunities correspond to reused bits.

[0341] Aspect 60: The method according to any one of aspects 55 to 59, wherein the paging signal comprises a bit indicating that the paging message comprises a configuration for a tracking reference signal but does not comprise a configuration for a channel state information reference signal.

[0342] Aspect 61: The method according to any one of Aspects 53 to 60 further comprises: sending a deactivation message to the UE for the updated transmission opportunity set.

[0343] Aspect 62: An apparatus for wireless communication at a UE, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 1 to 18.

[0344] Aspect 63: An apparatus for wireless communication at a UE, comprising at least one component for performing the method of any one of aspects 1 to 18.

[0345] Aspect 64: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 18.

[0346] Aspect 65: An apparatus for wireless communication at a UE, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 19 to 27.

[0347] Aspect 66: An apparatus for wireless communication at a UE, comprising at least one component for performing the method of any one of aspects 19 to 27.

[0348] Aspect 67: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 19 to 27.

[0349] Aspect 68: An apparatus for wireless communication at a base station, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 28 to 33.

[0350] Aspect 69: An apparatus for wireless communication at a base station, comprising at least one component for performing the method of any one of aspects 28 to 33.

[0351] Aspect 70: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 28 to 33.

[0352] Aspect 71: An apparatus for wireless communication at a UE, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 34 to 52.

[0353] Aspect 72: An apparatus for wireless communication at a UE, comprising at least one component for performing the method of any one of aspects 34 to 52.

[0354] Aspect 73: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 34 to 52.

[0355] Aspect 74: An apparatus for wireless communication at a base station, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of aspects 53 to 61.

[0356] Aspect 75: An apparatus for wireless communication at a base station, comprising at least one component for performing the method of any one of Aspects 53 to 61.

[0357] Aspect 76: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 53 to 61.

[0358] The technology described herein can be used for various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies, such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions can be generally referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is generally referred to as CDMA2000 1xEV-DO, high speed packet data (HRPD), etc. UTRA includes broadband CDMA (WCDMA) and other variants of CDMA. TDMA systems can implement radio technologies, such as global system for mobile communications (GSM).

[0359] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The technology described herein can be used for the systems and radio technologies mentioned herein as well as other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable to applications other than LTE, LTE-A, LTE-A Pro, or NR applications.

[0360] A macro cell typically covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to a UE through a service subscription with a network provider. A small cell may be associated with a base station with lower power than a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed, etc.) frequency band as a macro cell. According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. For example, a pico cell may cover a small geographic area and may allow unrestricted access to a UE through a service subscription with a network provider. A femto cell may also cover a small geographic area (e.g., a home) and may provide restricted access to a UE associated with the femto cell (e.g., a UE in a closed subscriber group (CSG), a UE for a user in a home, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (e.g., two, three, four, etc.) cells and may also support communications using one or more component carriers.

[0361] The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, the base stations may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0362] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0363] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in combination with a DSP core, or any other such configuration.

[0364] The functions described herein can be implemented with hardware, software executed by a processor, or any combination thereof. Software should be broadly interpreted as referring to instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes, functions, etc., whether or not referred to as software, firmware, middleware, microcode, hardware description language or other. If implemented in software executed by a processor, these functions can be stored on a computer-readable medium or transmitted thereon as one or more instructions or codes. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, software executed by a processor, hardware, hard wiring, or any combination thereof can be used to implement the functions described herein. The features that implement the functions can also be physically located in various locations, including being distributed so that parts of the functions are implemented in different physical locations.

[0365] Computer readable medium includes both non-transitory computer storage medium and communication medium, and computer storage medium and communication medium include any medium that helps to transfer computer program from one place to another place.Non-transitory storage medium can be any available medium that can be accessed by general or special computer.As an example and not limitation, non-transitory computer readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, CD (CD) ROM or other optical disk storage, disk storage or other magnetic storage device or can be used for carrying or storing required program code mode in the form of instruction or data structure and can be accessed by general or special computer or general or special processor Any other non-transitory medium.In addition, any connection is appropriately referred to as computer readable medium.For example, if coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology (such as infrared, radio and microwave) are used to send software from website, server or other remote source, coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology (such as infrared, radio and microwave) are included in the definition of medium. Disk and disc, as used herein, includes CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0366] As used herein, including in the claims, "or" as used in a list of items (e.g., a list of items preceded by a phrase such as "at least one" or "one or more") indicates that the list is included, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, without departing from the scope of the present disclosure, an exemplary step described as "based on condition A" can be based on both condition A and condition B. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on". As used herein, the term "and / or", when used in a list of two or more items, means that any one of the listed items can be used alone, or any combination of two or more of the listed items can be used. For example, if a composition is described as comprising components A, B, and / or C, the composition can comprise A alone; B alone; C alone; a combination of A and B; a combination of B and C, or a combination of A, B, and C.

[0367] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes between similar components. If only the first reference label is used in the specification, the specification applies to any one similar component having the same first reference label, regardless of the second reference label or other subsequent reference labels.

[0368] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration," rather than "preferred" or "superior to other examples." For the purpose of providing an understanding of the described technology, the detailed description includes specific details. However, the technologies may be practiced without these specific details. In some cases, in order to avoid obscuring the concepts of the described examples, known structures and devices are shown in block diagram form.

[0369] The description provided herein enables those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but conforms to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A user equipment UE, comprising: at least one processor; as well as at least one memory coupled to the at least one processor and storing instructions, wherein the instructions are executable by the at least one processor to cause the UE to: receiving system information indicating a set of monitoring opportunities for a tracking reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the tracking reference signal; while operating in an idle mode or an inactive mode, receiving a paging signal on a control channel, the paging signal including a system information change indication based at least in part on a change of the set of monitoring opportunities for the tracking reference signal, wherein the paging signal includes an indication of an updated set of monitoring opportunities for the tracking reference signal; as well as The updated set of monitoring occasions for the tracking reference signal is monitored based at least in part on the system information change indication in the paging signal.

2. The UE according to claim 1, wherein: The paging signal includes an indication of a duration associated with the updated set of monitoring occasions.

3. The UE according to claim 2, wherein: The paging signal indicates a number of frames, DRX cycles, or paging occasions within a duration associated with the updated set of monitoring occasions.

4. The UE according to claim 1, wherein: The instructions are executable by the at least one processor to: identifying a reference signal opportunity window, wherein the UE assumes that the tracking reference signal is sent by a network device at a reference signal opportunity within the reference signal opportunity window; as well as The tracking reference signal is monitored in the updated set of monitoring opportunities within the reference signal opportunity window.

5. The UE according to claim 1, wherein: The paging signal includes a paging identifier, a UE group identifier, or both.

6. The UE according to claim 1, wherein: The paging signal schedules a downlink shared channel.

7. The UE according to claim 6, wherein: The instructions are executable by the at least one processor to: A paging message is received on the downlink shared channel based at least in part on the paging signal.

8. The UE according to claim 1, wherein: The instructions are executable by the at least one processor to: A configuration associated with the updated set of monitoring opportunities is applied until a reconfiguration for the updated set of monitoring opportunities is received.

9. The UE according to claim 1, wherein: The period of the updated monitoring opportunity set is the same as the period of the paging opportunity of the UE.

10. The UE according to claim 1, wherein: The instructions are executable by the at least one processor to: receiving the tracking reference signal during the updated set of monitoring opportunities; measuring a signal characteristic of the tracking reference signal; as well as A radio resource management measurement condition is determined based at least in part on the signal characteristic.

11. A network device comprising: at least one processor; as well as at least one memory coupled to the at least one processor and storing instructions, wherein the instructions are executable by the at least one processor to cause the network device to: sending system information indicating a set of transmission opportunities for a tracking reference signal associated with the connected mode, wherein each transmission opportunity includes time and frequency resources for sending the tracking reference signal; sending a paging signal on a control channel to a user equipment (UE) operating in an idle mode or an inactive mode, the paging signal comprising a system information change indication based at least in part on a change of the set of transmission opportunities of the tracking reference signal, wherein the paging signal comprises an indication of an updated set of transmission opportunities of the tracking reference signal; as well as Based at least in part on the system information change indication in the paging signal, the tracking reference signal is sent in the updated set of transmission opportunities for the tracking reference signal.

12. The network device according to claim 11, wherein: The paging signal includes an indication of a duration associated with the updated set of transmission opportunities.

13. The network device according to claim 12, wherein: The paging signal indicates a number of frames, DRX cycles, or paging occasions within a time duration associated with the updated set of transmission opportunities.

14. The network device according to claim 11, wherein: The paging signal includes a paging identifier, a UE group identifier, or both.

15. The network device according to claim 11, wherein: The paging signal schedules a downlink shared channel.

16. The network device according to claim 15, wherein: The instructions are executable by the at least one processor to: A paging message is sent on the downlink shared channel based at least in part on the paging signal.

17. The network device according to claim 11, wherein: The period of the updated transmission opportunity set is the same as the period of the paging opportunity of the UE.

18. A method for wireless communication at a user equipment (UE), comprising: receiving system information indicating a set of monitoring opportunities for a tracking reference signal associated with a connected mode, wherein each monitoring opportunity includes time and frequency resources for transmitting the tracking reference signal; while operating in an idle mode or an inactive mode, receiving a paging signal on a control channel, the paging signal including a system information change indication based at least in part on a change of the set of monitoring opportunities for the tracking reference signal, wherein the paging signal includes an indication of an updated set of monitoring opportunities for the tracking reference signal; as well as The updated set of monitoring occasions for the tracking reference signal is monitored based at least in part on the system information change indication in the paging signal.

19. The method according to claim 18, wherein: The paging signal includes an indication of a duration associated with the updated set of monitoring occasions.

20. The method according to claim 19, wherein: The paging signal indicates a number of frames, DRX cycles, or paging occasions within a duration associated with the updated set of monitoring occasions.

21. The method of claim 18, further comprising: identifying a reference signal opportunity window, wherein the UE assumes that the tracking reference signal is sent by a network device at a reference signal opportunity within the reference signal opportunity window; as well as The tracking reference signal is monitored in the updated set of monitoring opportunities within the reference signal opportunity window.

22. The method according to claim 18, wherein: The paging signal includes a paging identifier, a UE group identifier, or both.

23. The method according to claim 18, wherein: The paging signal schedules a downlink shared channel.

24. The method according to claim 23, further comprising: A paging message is received on the downlink shared channel based at least in part on the paging signal.

25. The method of claim 18, further comprising: A configuration associated with the updated set of monitoring opportunities is applied until a reconfiguration for the updated set of monitoring opportunities is received.

26. The method of claim 18, wherein: The period of the updated monitoring opportunity set is the same as the period of the paging opportunity of the UE.

27. The method of claim 18, further comprising: receiving the tracking reference signal during the updated set of monitoring opportunities; measuring a signal characteristic of the tracking reference signal; as well as A radio resource management measurement condition is determined based at least in part on the signal characteristic.

28. A method for wireless communication at a network device, comprising: sending system information indicating a set of transmission opportunities for a tracking reference signal associated with the connected mode, wherein each transmission opportunity includes time and frequency resources for sending the tracking reference signal; sending a paging signal on a control channel to a user equipment (UE) operating in an idle mode or an inactive mode, the paging signal comprising a system information change indication based at least in part on a change of the set of transmission opportunities of the tracking reference signal, wherein the paging signal comprises an indication of an updated set of transmission opportunities of the tracking reference signal; as well as Based at least in part on the system information change indication in the paging signal, the tracking reference signal is sent in the updated set of transmission opportunities for the tracking reference signal.

29. The method according to claim 28, wherein: The paging signal includes an indication of a duration associated with the updated set of transmission opportunities.

30. The method of claim 29, wherein: The paging signal indicates a number of frames, DRX cycles, or paging occasions within a time duration associated with the updated set of transmission opportunities.

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