Techniques for managing radio transceiver chains for multiple radio access technologies

Abstract

A user equipment (UE) may monitor a channel for wireless communications associated with a first radio access technology (RAT) during one or more of a first active duration or a first inactive duration. The UE may operate in a first power mode during a first inactive duration. The UE may monitor the channel for wireless communications associated with the second RAT during one or more of a second active duration or a second inactive duration. The UE may operate in one or more of the first power mode or the second power mode during the second inactive duration. The UE may operate according to a first mode or a second mode based on monitoring of a channel associated with the first RAT and the second RAT.

Description

[0001] This application is a divisional application of an application with a filing date of May 14, 2021, application number 202180033982.2 (international application number PCT / US2021 / 032460), and name “Technology for managing radio transceiver chains for multiple radio access technologies”.

[0002] Cross-references

[0003] This patent application claims U.S. patent application No. 17 / 320,197, filed by SHAHIDI et al. on May 13, 2021, entitled “SHARING RADIO TRANSCEIVER CHAIN ​​BETWEEN DISTINCT RADIO COMMUNICATION TECHNOLOGIES,” U.S. provisional patent application No. 63 / 025,273, filed by SHAHIDI et al. on May 15, 2020, entitled “SHARING RADIO TRANSCEIVER CHAIN ​​BETWEEN DISTINCT RADIO COMMUNICATION TECHNOLOGIES,” and U.S. provisional patent application No. 63 / 025,273, filed by SHAHIDI et al. on May 15, 2020, entitled “SHARING RADIO TRANSCEIVER CHAIN ​​BETWEEN DISTINCT RADIO COMMUNICATION TECHNOLOGIES (SHARING RADIO TRANSCEIVER CHAINS BETWEEN DIFFERENT RADIO COMMUNICATION TECHNOLOGIES)"; each of which is assigned to the assignee of the present application.

[0004] Public domain

[0005] For example, the present disclosure relates to wireless communication systems, and more particularly, to techniques for managing a radio transceiver chain for multiple radio access technologies (RATs).

[0006] background

[0007] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, 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, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may use various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each base station or network access node simultaneously supporting the communication of multiple communication devices, which may be referred to as user equipment (UE) in addition.

[0008] Overview

[0009] The present disclosure relates to techniques for managing one or more radio transceiver chains for multiple radio access technologies (RATs).The described techniques each have several innovative aspects, no single one of which is solely responsible for the desirable attributes disclosed herein.

[0010] A method for wireless communication at a device is described. The method may include: monitoring a channel for wireless communication associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration; monitoring a channel for wireless communication associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of a second active duration or a third active duration and the first active duration, the second power mode based on overlap between one or more of the second active duration or the third active duration and the first active duration; and operating the device according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT.

[0011] An apparatus for wireless communication at a device is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: monitor a channel during one or more of a first active duration or a first inactive duration for wireless communication associated with a first RAT, the apparatus operating in a first power mode during the first inactive duration; monitor a channel during one or more of a second active duration or a second inactive duration for wireless communication associated with a second RAT, the apparatus operating in a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on the overlap between one or more of the second active duration or the third active duration and the first active duration; and operate the apparatus according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT.

[0012] Another apparatus for wireless communication at a device is described. The apparatus may include: means for monitoring a channel during one or more of a first active duration or a first inactive duration for wireless communication associated with a first RAT, the device operating in a first power mode during the first inactive duration; means for monitoring a channel during one or more of a second active duration or a second inactive duration for wireless communication associated with a second RAT, the device operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on overlap between one or more of the second active duration or the third active duration and the first active duration; and means for operating the device according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT.

[0013] A non-transitory computer-readable medium storing code for wireless communication at a device is described. The code may include instructions executable by a processor to: monitor a channel for wireless communication associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration; monitor a channel for wireless communication associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of a second active duration or a third active duration and the first active duration, the second power mode based on overlap between one or more of the second active duration or the third active duration and the first active duration; and operate the device according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT.

[0014] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the device includes a radio transceiver chain for receiving or transmitting one or more of wireless communications associated with one or more of a first RAT or a second RAT.

[0015] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: based on monitoring the channel during one or more of the first active duration or the first inactive duration for wireless communications associated with the first RAT, operating the radio transceiver chain associated with the device in the first power mode during the first inactive duration. By operating the radio transceiver chain associated with the device in the first power mode during the first inactive duration based on monitoring the channel during one or more of the first active duration or the first inactive duration for wireless communications associated with the first RAT, the device may experience reduced power consumption.

[0016] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, monitoring a channel for wireless communications associated with a first RAT may include operations, features, means, or instructions for enabling a radio transceiver chain to monitor a channel for wireless communications associated with the first RAT during a first active duration based on a timer, activating the timer based on enabling the radio transceiver chain to monitor a channel for wireless communications associated with the first RAT during the first active duration, and disabling the radio transceiver chain from monitoring the channel for wireless communications associated with the first RAT by switching the radio transceiver chain to operate in a first power mode during a first inactive duration based on expiration of the timer. By monitoring the channel for wireless communications associated with the first RAT during the first active duration based on a timer, the device may experience reduced latency and processing and extended battery life for the device.

[0017] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: based on monitoring the channel during one or more of the second active duration or the second inactive duration to find wireless communications associated with the second RAT, operating a radio transceiver chain associated with the device in one or more of the first power mode or the second power mode during the second inactive duration. By operating the radio transceiver chain associated with the device in one or more of the first power mode or the second power mode during the second inactive duration, the device may experience reduced power consumption.

[0018] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, monitoring the channel for wireless communications associated with the second RAT may include operations, features, means, or instructions for enabling the radio transceiver chain to monitor the channel for wireless communications associated with the second RAT during a second active duration based on a timer, activating the timer based on enabling the radio transceiver chain to monitor the channel for wireless communications associated with the second RAT during the second active duration, and disabling the radio transceiver chain from monitoring the channel for wireless communications associated with the second RAT by switching the radio transceiver chain to operate in the first power mode or the second power mode during a second inactive duration based on expiration of the timer. By monitoring the channel for wireless communications associated with the second RAT during the second active duration based on a timer, the device may experience reduced latency and processing and extended battery life for the device.

[0019] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: based on the first inactive duration not overlapping one or more of the end portion of the second active duration or the beginning portion of a third active duration after the second active duration, switching the radio transceiver chain to operate in the first power mode during the second inactive duration. By switching the radio transceiver chain to operate in the first power mode during the second inactive duration, the device may experience more efficient resource utilization.

[0020] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: based on the first inactive duration overlapping one or more of the end portion of the second active duration or the beginning portion of a third active duration after the second active duration, switching the radio transceiver chain to operate in the second power mode during the second inactive duration. By switching the radio transceiver chain to operate in the second power mode during the second inactive duration, the device may experience more efficient resource utilization.

[0021] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: receiving control signaling indicating a configuration for the device, the configuration indicating one or more of a first active duration, a first inactive duration, a second active duration, a second inactive duration, or a third active duration, and wherein operating the radio transceiver chain in one or more of a first power mode or a second power mode may be based on the configuration. By receiving the control signaling, the device may support more efficient resource utilization.

[0022] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: adjusting the second activity duration based on a portion of the first activity duration overlapping a portion of the second activity duration. By adjusting the second activity duration, the device can support more efficient resource utilization.

[0023] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining one or more of a start of a first active duration or a start of a second active duration based on the scheduling information, and adjusting the start of the second active duration to occur before the start of the first active duration based on determining that a portion of the first active duration overlaps a portion of the second active duration. Based on the determination, the device may support more efficient resource utilization.

[0024] Some examples of methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining one or more of an end of a first active duration or an end of a second active duration based on scheduling information, and adjusting an end of the second active duration to occur after an end of the first active duration based on determining that a portion of the first active duration overlaps a portion of the second active duration. Based on the determination, the device may support more efficient resource utilization.

[0025] In some examples of methods, apparatuses (equipment), and non-transitory computer-readable media described herein, a first set of antennas associated with the device is allocated based on a configuration to monitor a channel during one or more of a first active duration or a first inactive duration for wireless communications associated with a first RAT, and a second set of antennas associated with the device is allocated based on the configuration to monitor a channel during one or more of a second active duration or a second inactive duration for wireless communications associated with a second RAT. By allocating different antenna sets for different RATs, the device can support improved coordination between different RATs.

[0026] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the first set of antennas may not overlap with the second set of antennas.

[0027] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: reallocating one or more of the first antenna set or the second antenna set based on one or more of the first active duration or the second active duration. By reallocating different antenna sets for different RATs, the apparatus may support improved coordination between different RATs.

[0028] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: managing one or more memory registers associated with the device for one or more of a first RAT and a second RAT, the one or more memory registers corresponding to a radio transceiver chain associated with the device, the one or more memory registers being shareable between the first RAT and the second RAT. By managing one or more memory registers associated with the device for one or more of the first RAT and the second RAT, the device may support reduced processing.

[0029] In some examples of methods, apparatuses, and non-transitory computer-readable media described herein, managing one or more memory registers may include operations, features, means, or instructions for inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting states of the one or more memory registers, the first SIM corresponding to a first RAT and the second SIM corresponding to a second RAT. By inhibiting the first SIM associated with the device and the second SIM associated with the device from jointly adjusting states of the one or more memory registers, the device may support reduced processing and improved utilization of processing power.

[0030] Some examples of methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting an operating mode of a radio transceiver chain associated with the device. By inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting an operating mode of a radio transceiver chain, the device may support improved coordination of the first SIM and the second SIM.

[0031] Some examples of methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: adjusting an operating mode of a radio transceiver chain associated with the device based on an acknowledgement between a first SIM associated with the device and a second SIM associated with the device, the first SIM corresponding to a first RAT and the second SIM corresponding to a second RAT. By adjusting the operating mode of the radio transceiver chain associated with the device based on the acknowledgement, the device may support improved coordination between the first SIM and the second SIM.

[0032] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: disabling baseband circuitry and radio frequency (RF) front-end circuitry associated with the device when the device can operate in a first power mode. By disabling the baseband circuitry and the RF front-end circuitry, the device can experience reduced power consumption.

[0033] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: disabling baseband circuitry associated with the device based on the device operating in a second power mode, and enabling RF front-end circuitry associated with the device based on the device operating in the second power mode. By disabling baseband circuitry based on the device operating in the second power mode, the device may experience reduced power consumption. By enabling RF front-end circuitry based on the device operating in the second power mode, efficient resource utilization may be supported.

[0034] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the first active duration includes a fourth generation (4G) wake-up duration, and the second active duration includes a fifth generation (5G) discontinuous reception (DRX) duration.

[0035] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the first RAT corresponds to a first SIM associated with the device, and the second RAT corresponds to a second SIM associated with the device.

[0036] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the device includes a multiple-input multiple-output radio transceiver chain capable of performing spatial multiplexing.

[0037] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, one or more of the first RAT or the second RAT includes a 4G RAT or a 5G RAT. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1

[0013] An example of a wireless communication system supporting techniques for managing radio transceiver chains for multiple radio access technologies (RATs) in accordance with various aspects of the present disclosure is illustrated.

[0040] Figure 2 A block diagram of a device supporting techniques for managing radio transceiver chains for multiple RATs is shown in accordance with various aspects of the present disclosure.

[0041] Figures 3 to 7 An example of a timeline supporting techniques for managing radio transceiver chains for multiple RATs is illustrated in accordance with various aspects of the present disclosure.

[0042] Figure 8 A block diagram of a device supporting techniques for managing radio transceiver chains for multiple RATs is shown in accordance with various aspects of the present disclosure.

[0043] Fig. 9 and 10 A block diagram of a device supporting techniques for managing radio transceiver chains for multiple RATs is shown in accordance with various aspects of the present disclosure.

[0044] Fig.11 A block diagram of a communications manager supporting techniques for managing radio transceiver chains for multiple RATs is shown in accordance with various aspects of the present disclosure.

[0045] Fig.12 A diagram of a system including devices supporting techniques for managing radio transceiver chains for multiple RATs is shown in accordance with various aspects of the present disclosure.

[0046] Figures 13 to 16 A flow chart illustrating a method of supporting techniques for managing radio transceiver chains for multiple RATs in accordance with various aspects of the present disclosure is shown.

[0047] Detailed Description

[0048] A user equipment (UE) may be configured to support multiple subscriber identity modules (SIMs). Each corresponding SIM in the multiple SIMs may support a corresponding radio access technology (RAT). Examples of RATs include fourth generation (4G) (such as long term evolution (LTE) or advanced LTE (LTE-A)) and fifth generation (5G) (which may be referred to as new radio (NR) or 5G NR). The UE may be configured to have one or more of a dedicated data service (DDS) SIM or a non-dedicated data service (NDDS) SIM. One or more of the DDS SIM or the NDDS SIM may support at least one of the above example RATs. For example, the DDS SIM may support 5G, while the NDDS SIM may support 4G. The DDS SIM may enable the UE to support wireless communications with a network entity associated with a corresponding RAT (e.g., 5G), while the NDDS SIM may enable the UE to support wireless communications with a network entity associated with a corresponding RAT (e.g., 4G). The UE may be configured to adopt an operating mode that reduces power consumption.

[0049] For example, the UE may enter a deep sleep mode to save power. While in deep sleep mode, the UE may periodically wake up to check for paging messages from a network entity associated with a corresponding RAT associated with the DDS SIM. If the UE does not detect any paging messages, the UE may return to deep sleep mode. Similarly, the UE may periodically wake up to check for paging messages from a network entity associated with a different corresponding RAT associated with the NDDS SIM, and may return to deep sleep mode if no paging messages are detected. In some cases, the periodic transitions between the above different operating modes may result in inefficient resource utilization. For example, the above transitions may result in inefficient utilization of antenna elements (e.g., antenna switches) at the RF front-end circuit of the UE. Each time the UE enters deep sleep mode, the UE may deactivate the antenna element (e.g., to save power). In this way, if the UE wakes up from deep sleep mode, the UE may have to reconfigure the antenna element before checking the paging message. This reconfiguration of the antenna element may result in a relatively high processing cost.

[0050] Various aspects of the present disclosure relate to techniques for implementing inter-SIM coordination to reduce the occasions in which a UE reconfigures antenna elements, thereby reducing processing costs at the UE. Inter-SIM coordination may include entering a light sleep mode instead of a deep sleep mode. When entering the light sleep mode, the UE may suppress deactivation of antenna elements. As a result, the UE may check for paging messages after waking up from the light sleep mode without reconfiguring the antenna elements. The UE may determine to enter the light sleep mode based on an overlap in the time domain between a connected discontinuous reception mode (CDRX) cycle associated with a corresponding RAT and a paging wake-up cycle associated with a different corresponding RAT. Additionally or alternatively, the UE may determine to adjust the CDRX cycle associated with the corresponding RAT based on identifying the overlap in the time domain. In some other examples, if the UE intends to use an NDDS SIM to check for paging messages from the corresponding RAT, inter-SIM coordination may include activating (e.g., waking up) the DDS SIM. In some other examples, inter-SIM coordination may include allocating a first subset of antenna elements to the DDS SIM and allocating a second subset of antenna elements to the NDDS SIM.

[0051] Aspects of the disclosure are initially described in the context of wireless communication systems. Aspects of the disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to techniques for managing radio transceiver chains for multiple RATs.

[0052] Figure 1An example of a wireless communication system 100 supporting techniques for managing radio transceiver chains for multiple RATs in accordance with various aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, or an NR network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0053] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be different forms of devices or devices with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0054] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be different forms of devices or devices with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), such as Figure 1 as shown in .

[0055] Each base station 105 may communicate with the core network 130, or communicate with each other, or both. For example, the base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3 or other interfaces). 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), or directly and indirectly on the backhaul link 120 (e.g., via X2, Xn or other interfaces). In some examples, the backhaul link 120 may be or include one or more wireless links. One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a B node, an evolved B node (eNB), a next generation B node or a gigabit B node (any of which may be referred to as a gNB), a home B node, a home evolved B node, or other suitable terms.

[0056] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc. The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc., such as Figure 1 as shown in .

[0057] UE 115 and base station 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum band resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given RAT (e.g., LTE, LTE-A, LTE-APro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support the use of carrier aggregation or multi-carrier operation to communicate with UE 115. UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0058] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a 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 grid for discovery by UE 115. A carrier may operate in a standalone mode in which initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode in which a connection is anchored using a different carrier (e.g., a different carrier of the same or different RAT).

[0059] The communication 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. A carrier may carry downlink or uplink communications (e.g., in an FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in a TDD mode).

[0060] A carrier may be associated with a bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) of a carrier of a RAT. Devices (e.g., base stations 105, UEs 115, or both) of the wireless communication system 100 may have a hardware configuration that supports communications on a carrier bandwidth, or may be configurable to support communications on one of the carrier bandwidths in a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communications via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0061] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system using MCM technology, a resource element may include a code element period (e.g., the duration of a modulation code element) and a subcarrier, where the code element 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, the code rate of the modulation scheme, or both). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum band resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further improve the data rate or data integrity of communication with UE 115.

[0062] One or more parameter designs for a carrier may be supported, where the parameter designs may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different parameter designs. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to the one or more active BWPs.

[0063] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, and the basic time unit can be, for example, a sampling period T s =1 / (Δf max ·Nf) seconds, where Δf maxNf may represent the maximum supported subcarrier spacing, and Nf may represent the maximum supported discrete Fourier transform (DFT) size. Time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0064] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of code element periods (e.g., depending on the length of the cyclic prefix added before each code element period). In some wireless communication systems 100, the time slot may be further divided into a plurality of mini-time slots containing one or more code elements. Excluding the cyclic prefix, each code element period may include one or more (e.g., Nf) sampling periods. The duration of the code element period may depend on the subcarrier spacing or the operating frequency band.

[0065] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0066] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may extend across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0067] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with a base station 105 (e.g., on a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) used to distinguish adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The range of such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area depending on various factors (such as the capabilities of the base station 105). For example, a cell may be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, as well as other examples.

[0068] A macro cell covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs 115 that have service subscriptions with a network provider that supports the macro cell. A small cell may be associated with a lower power base station 105 (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed) radio frequency spectrum band as the macro cell. A small cell may provide unrestricted access to a UE 115 that has a service subscription with a network provider, or may provide restricted access to a UE 115 associated with a small cell (e.g., a UE 115 in a closed subscriber group (CSG), a UE 115 associated with a user in a home or office). A base station 105 may support one or more cells and may also support communications on one or more cells using one or more component carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0069] Base stations 105 may be mobile and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0070] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may not be aligned in time in some examples. The techniques described herein may be used for synchronous or asynchronous operation.

[0071] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated 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 communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0072] 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 unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with 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, operating on a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a subcarrier or resource block (RB) set) within a carrier, within a guard band of a carrier, or outside a carrier.

[0073] The wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services (such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, critical mission, and ultra-reliable low latency may be used interchangeably herein.

[0074] In some examples, UE 115 may also be able to communicate directly with other UE 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a 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 for other reasons. In some examples, each 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 examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between each UE 115 without involving the base station 105.

[0075] The D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these communications. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units), or with the network, or both via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communications.

[0076] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), and the EPC or 5GC may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a base station 105 associated with the core network 130. User IP packets may be delivered via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to an IP service 150 for one or more network operators. The IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0077] Some network devices (such as base stations 105) may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0078] The wireless communication system 100 can operate using one or more bands of radio frequency spectrum in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macro cells to provide service to UEs 115 located indoors. Transmission of UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to transmission using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0079] The wireless communication system 100 may also operate in a super high frequency (SHF) zone using a radio frequency spectrum band from 3 GHz to 30 GHz (also known as a centimeter band) or in an extremely high frequency (EHF) zone of the spectrum (e.g., from 30 GHz to 300 GHz) (also known as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency zones, and the use of radio frequency spectrum bands specified across these frequency zones may vary by country or regulatory agency.

[0080] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) RAT, or NR technology in an unlicensed band (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) may employ carrier sensing for conflict detection and avoidance. In some examples, operations in an unlicensed radio frequency spectrum band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in a licensed band. Operations in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0081] The base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having antenna ports of several rows and columns that the base station 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals transmitted via the antenna ports.

[0082] The base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such technology may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. 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 (e.g., different codewords). 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 transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0083] 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, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating at an orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with an orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0084] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or a receiving device (such as the UE 115)) to identify a beam direction used by the base station 105 for later transmission or reception.

[0085] Some signals, such as data signals associated with a 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 transmissions along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0086] In some examples, transmission by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or RF beamforming to generate a combined beam for transmission (e.g., from the base station 105 to the UE 115). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit a reference signal that may be precoded or unprecoded (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)). The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0087] A receiving device (e.g., UE 115) may try multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a base station 105. For example, the receiving device may try multiple reception directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or 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 reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single reception configuration may be aligned on a beam direction determined based on listening according to different reception configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0088] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The media access control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer may provide the establishment, configuration, and maintenance of an RRC connection that supports radio bearers of user plane data between UE 115 and base station 105 or core network 130. In the physical layer, transport channels may be mapped to physical channels.

[0089] UE 115 and base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood that data is correctly received on communication link 125. HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve the throughput of the MAC layer in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support simultaneous slot HARQ feedback, wherein 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.

[0090] In the wireless communication system 100, when multiple RATs concurrently or simultaneously use the radio transceiver chain, the UE 115 can support mitigation of conflicts that may occur at the radio transceiver chain associated with the UE 115. The radio transceiver chain can be a MIMO transceiver that performs multiple spatial modulation. The UE 115 can be configured to avoid or mitigate conflicting use of the radio transceiver chain by protecting the state of registers (also referred to as memory registers) at the radio frequency (RF) front-end circuit of the UE 115 so that one RAT (e.g., third generation (3G), 4G, 5G, and other RATs) does not overwrite such registers when another RAT (e.g., 3G, 4G, 5G, and other RATs) is using such registers.

[0091] In some cases, UE 115 can alleviate such conflicting use of registers by utilizing resources in a radio transceiver chain. For example, UE 115 can remove or eliminate contention by adjusting the corresponding reception or sleep cycle for each corresponding RAT in a plurality of RATs. In some other cases, UE 115 may be configured to have additional hardware or software components to arbitrate or manage the use of such registers. For example, an arbitrator component (e.g., a driver of a radio transceiver chain) associated with UE 115 can manage the use of registers at the RF front-end chain so that the corresponding RAT using the radio transceiver chain in a plurality of RATs cannot change the register unexpectedly. In other cases, UE 115 may be configured to use rules involving each corresponding RAT in a plurality of RATs that permit the corresponding state of the corresponding register to be changed.

[0092] For example, a mechanism is provided to control the power mode of a radio transceiver chain (e.g., baseband circuitry or RF front-end circuitry) to be changed without permission from all RATs using the radio transceiver chain. For example, the communication manager described herein can be used to prevent the transceiver chain (or components therein) from being powered off unless all RATs (e.g., SIM122 and SIM 124) permit the change in power mode. For example, if all RATs use the radio transceiver chain concurrently, the communication manager requires all RATs to decide or agree to change the power mode of the transceiver chain. In one example, the communication manager may configure additional switches or registers that each RAT must set in order to change the power mode of the transceiver chain. In one example, the communication manager may prevent the power mode of the radio transceiver chain from being changed from a power-on mode to a power-off or sleep mode without permission from all RATs.

[0093] In the wireless communication system 100, a base station 105 (e.g., a radio access network (RAN)) may be associated with a first RAT (e.g., 5G), while another base station 105 (e.g., another RAN) may be associated with a second RAT (e.g., 4G). The UE 115 may be configured to support multiple SIMs, such as SIM 122 and SIM 124. The UE 115 may be able to simultaneously use one or more of the SIM 122 and SIM 124 for wireless communication with one or more base stations 105. That is, the UE 115 may concurrently communicate with multiple different base stations 105 supporting different RATs.

[0094] UE 115 may be configured to support one or more of a receive cycle (also referred to as an active duration), a sleep cycle (also referred to as an inactive duration) associated with one or more RATs, or a power sleep cycle (also referred to as an inactive duration) (such as a shallow sleep cycle for a radio transceiver chain associated with UE 115) to ease changes to one or more registers associated with UE 115. For example, UE 115 may support a first RAT (e.g., 4G LTE) and a second RAT (e.g., 5G NR). The first RAT may be associated with a first receive cycle (e.g., a first active duration) and a first sleep cycle (e.g., a first inactive duration). Similarly, the second RAT may be associated with a second receive cycle (e.g., a second active duration) and a second sleep cycle (e.g., a second inactive duration).

[0095] In some cases, if an overlap is expected between the first receive cycle and the second receive cycle, the radio transceiver chain associated with the UE 115 may be switched to a partial power saving mode (e.g., a partial sleep mode) instead of a deep power saving mode (e.g., a deep sleep mode). In some other cases, the UE 115 may adjust the duration of the second receive cycle based on the expected overlap between the first receive cycle and the second receive cycle. However, it should be understood that the duration of the first receive cycle and the second receive cycle may be variable. In this way, the expected overlap may be approximate. The UE 115 may also configure the first and second receive cycles so that the second receive cycle starts before the first receive cycle and ends after the first receive cycle. Additionally or alternatively, the UE 115 may assign a first subset of antenna switches (e.g., at the radio transceiver chain of the UE 115) to the first RAT, and may assign a second subset of antenna switches to the second RAT.

[0096] Various aspects of the present disclosure may enable UE 115 to support multiple RATs with greater efficiency, among other benefits. For example, various aspects of the present disclosure may enable SIM 122 and SIM 124 to operate the radio transceiver chain of UE 115 with relatively greater efficiency based on reducing the number of times the radio transceiver chain is reprogrammed. As a result, UE 115 may use SIM 122 and SIM 124 to support multiple RATs with relatively lower processing costs.

[0097] Figure 2A block diagram 200 of a device 205 supporting techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is shown. The device 205 may be an example of aspects of a UE 115 as described herein. The device 205 may include a processor 210 coupled to a radio transceiver chain 215 and one or more of a SIM 220 and a SIM 225. The SIM 220 (e.g., a DDS SIM) may support wireless communications in accordance with a first RAT (e.g., 5G NR). The SIM 225 (e.g., an nDDS SIM) may support wireless communications in accordance with a second RAT (e.g., 4G LTE).

[0098] The radio transceiver chain 215 may include a baseband circuit 230 coupled to an RF front end circuit 235. The RF front end circuit 230 may include one or more of a register set 240 (e.g., one or more registers), a transmitter circuit 245, or a receiver circuit 250. One or more components of the RF front end circuit 235 may be coupled to one or more antennas 255. In some examples, the radio transceiver chain 215 may be a MIMO transceiver that performs multiple spatial modulation (e.g., dual spatial modulation). The radio transceiver chain 215 may support simultaneous wireless communications according to a first and a second RAT.

[0099] The device 205 may include a wake-up manager 260 configured to provide scheduling information including radio transceiver chain resources for first and second RATs supported by the device 205. For example, the wake-up manager 210 may track when the first and second RATs are expected or scheduled to wake up for a receive cycle (e.g., LTE paging wakeup or NR C-DRX). The wake-up manager 260 may be configured to wake up (e.g., power on) the radio transceiver chain 215 based at least in part on one or more periodic occasions or aperiodic occasions.

[0100] The register set 240 associated with the RF front end circuit 235 may be configured to track the corresponding state of the RF front end circuit 225. In some examples, both the SIM 220 and the SIM 225 may use the register set 240. Because the register set 240 may be shared between the SIM 220 and the SIM 225, the SIM 220 or the SIM 225 may overwrite one or more parameters (e.g., settings) of the other SIM (e.g., the SIM 220 or the SIM 225). The overwriting may result in a loss of wireless communication of the RAT associated with the other SIM (e.g., the first RAT or the second RAT), which may result in performance degradation or loss of connection for the device 205.

[0101] According to various aspects of the present disclosure, the device 205 can reduce the number of times the register set 240 is overwritten based on coordinating the use of the RF front-end circuit 235 between the SIM 220 and the SIM 225. For example, the device 205 can operate the register set 240 with higher efficiency based on coordinating the receive cycle and the sleep cycle of the first and second RATs. Additionally or alternatively, the device 205 can assign a first subset of antennas 255 to the SIM 220, and can assign a second subset of antennas 225 to the SIM 225. In this way, the SIM 220 and the SIM 225 can use the first subset and the second subset of antennas 255 to communicate according to the first RAT and the second RAT without overwriting the register set 240.

[0102] As an example, a first RAT may utilize a first number of receivers and switches, while a second RAT may utilize a second number of receivers and switches. The device 205 may allocate receivers and switches from the radio transceiver chain 215 to the first RAT and the second RAT accordingly. For example, the device 205 may configure a first group of receivers and switches at the radio transceiver chain 215 using settings compatible with one or more radio frequency spectrum bands associated with the first RAT (e.g., NR N41). Similarly, the device 205 may configure a second group of receivers and switches at the radio transceiver chain 215 using settings compatible with one or more radio frequency spectrum bands associated with the first RAT (e.g., NR N41) or the second RAT. In some examples, the first group may include a MIMO main receiver and a MIMO diversity receiver. Similarly, the second group may include a MIMO main receiver and a MIMO diversity receiver.

[0103] In some examples, the device 205 may reduce the number of times the register set 240 is overwritten based on obtaining one or more acknowledgements from the SIM 220 or SIM 225 before changing the power state of the radio transceiver chain 215. For example, the device 205 may refrain from powering down the radio transceiver chain 215 (and overwriting the register set 240) until the device 205 receives acknowledgements from the SIM 220 and SIM 225. Thus, if one or more of the SIM 220 or SIM 225 is using the register set 240, the register set 240 may not be overwritten without acknowledgements from the SIM 210 and SIM 220. In some examples, the device 205 may determine whether to adjust the power level of the radio transceiver chain 215 based on one or more additional switches or registers. For example, the device 205 may refrain from adjusting the power level of the radio transceiver chain 215 or overwriting the register set 240 unless the one or more additional switches or registers are set to a particular state.

[0104] Reducing the number of times the register set 240 is overwritten may enable the device 205 to support multiple RATs with higher efficiency and lower processing overhead. For example, various aspects of the present disclosure may enable the SIM 220 and the SIM 225 to operate the radio transceiver chain 215 of the device 205 with relatively higher efficiency based on reducing the number of times the radio transceiver chain is powered on or off. As a result, the device 205 may allocate fewer processing resources to reconfigure the radio transceiver chain 215 and overwrite the register set 240. Therefore, the device 205 may use the SIM 220, the SIM 225, and the register set 240 to communicate according to the first RAT and the second RAT with relatively higher processing efficiency.

[0105] Figure 3 An example of a timeline 300 supporting techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is illustrated. The timeline 300 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 200, as described with reference to FIG. Figure 1 For example, the timeline 300 may be based on a configuration of the base station 105 that may be implemented by the UE 115 to provide power savings for the UE 115. Alternatively, the timeline 300 may be based on a configuration of the UE 115 that may be implemented by the UE 115 to facilitate high reliability and low latency wireless communications associated with various RATs 305.

[0106] exist Figure 3In an example of , UE 115 may be configured to support one or more of receive cycles (also referred to as active durations) or sleep cycles (also referred to as inactive durations) associated with various RATs. UE 115 may also be configured to support power sleep cycles (also referred to as inactive durations) of a radio transceiver chain associated with UE 115. UE 115 may use power sleep cycles to mitigate changes to one or more registers associated with UE 115. UE 115 may support a first RAT 305-b (e.g., 4G LTE) and a second RAT 305-a (e.g., 5G NR). The first RAT 305-b may be associated with a first receive cycle 325 (e.g., a first active duration) and a first sleep cycle (e.g., a first inactive duration, not shown). Similarly, the second RAT 305-a may be associated with a second receive cycle 315 (e.g., a second active duration) and a second sleep cycle (e.g., a second inactive duration). The second sleep cycle associated with the second RAT may include a light sleep cycle 320 and a deep sleep cycle 310. In some examples, the duration 335 between the first receive cycles 325 may be equal to a first value (e.g., 640 ms), and the duration 330 between the second receive cycles 315 may be equal to a second value (e.g., 160 ms). For example, the UE 115 may activate one or more timers that may enable the UE 115 to monitor wireless communications associated with one or more of the first RAT 305-b (e.g., 4G LTE) or the second RAT 305-a (e.g., 5G NR). The one or more timers may indicate the duration 335 between the first receive cycles 325 (e.g., 640 ms)) or the duration 330 between the second receive cycles 315 (e.g., the second value (e.g., 160 ms)).

[0107] The UE 115 may receive a semi-static configuration (e.g., via an RRC configuration message) from the base station 105, the semi-static configuration indicating one or more of a first receive cycle, a first sleep cycle, a second receive cycle, or a second sleep cycle. For example, one or more RRC information elements (IEs) may indicate one or more of a first receive cycle, a first sleep cycle, a second receive cycle, or a second sleep cycle for each respective RAT. Additionally or alternatively, the UE 115 may receive a dynamic configuration (e.g., a DCI or a media access control-control element (MAC-CE)) from the base station 105, the dynamic configuration indicating one or more of a first receive cycle, a first sleep cycle, a second receive cycle, or a second sleep cycle. For example, one or more IEs of a DCI or a MAC-CE may indicate one or more RRC information elements (IEs), the one or more RRC information elements (IEs) may indicate one or more of a first receive cycle, a first sleep cycle, a second receive cycle, or a second sleep cycle for each respective RAT.

[0108] The UE 115 may determine, at least in part, based on one or more of the semi-static configuration or the dynamic configuration, that there is or is not an overlap between one or more of the receive cycles or the sleep cycles. In some cases, if an overlap is expected between the leading edges of the first receive cycle 325-a and the second receive cycle 315-b, the radio transceiver chain associated with the UE 115 may switch to a shallow sleep cycle 320-a (e.g., a partial sleep mode) instead of a deep sleep cycle 310. Similarly, if an overlap is expected between the leading edges of the first receive cycle 325-b and the second receive cycle 315-e, the radio transceiver chain associated with the UE 115 may switch to a shallow sleep cycle 320-b instead of a deep sleep cycle 310. In some other cases, if no overlap is expected between the first receive cycle 325 and the second receive cycle 315, the radio transceiver chain associated with the UE 115 may switch to a deep sleep cycle 310. For example, if there is no expected overlap between the first receive cycle 325-a and the second receive cycle 315-a, the radio transceiver chain associated with the UE 115 may enter the deep sleep cycle 310-a. Similarly, if there is no expected overlap between the first receive cycle 325 and the second receive cycle 315-c or the second receive cycle 315-d, respectively, the radio transceiver chain associated with the UE 115 may enter the deep sleep cycle 310-b and the deep sleep cycle 310-c.

[0109] In some examples, UE 115 may detect an overlap between the first receive cycle 325-a and the second receive cycle 315-b based at least in part on determining that a leading edge (e.g., a starting portion) of the second receive cycle 315-b (e.g., an NR C-DRX active duration) falls within the first receive cycle 325-a (e.g., an LTE paging wake-up duration), such as Figure 3 In some other examples, the UE 115 may detect the overlap between the first receive cycle 325 and the second receive cycle 315 based on determining that the trailing edge (e.g., the ending portion) of the second receive cycle 315 falls within the first receive cycle 325, as shown in reference to Figure 4 In other examples, the UE 115 can detect the overlap between the first receive cycle 325 and the second receive cycle 315 based on determining that both the leading edge and the trailing edge of the second receive cycle 315 fall within the first receive cycle 325, as described with reference to Figure 5 As described.

[0110] Timeline 300 may illustrate an example of leading edge overlap detection between some first receive cycles 325 and some second receive cycles 315. In some examples, a wake-up manager at UE 115 may determine that the leading edge of the second receive cycle 315-b overlaps with the first receive cycle 325-a. In such examples, the wake-up manager may configure the radio transceiver chain of UE 115 to enter a shallow sleep cycle 320-a before the second receive cycle 315-b. While in the shallow sleep cycle 320-a, a first portion of the radio transceiver chain (e.g., baseband processing circuitry) may be inactive, while a second portion of the radio transceiver chain (e.g., RF front-end circuitry) may be active. That is, the wake-up manager may not disable the RF front-end circuit switch based on entering the shallow sleep cycle 320-a. In this way, the wake-up manager may not reprogram the RF front-end circuit switch after exiting the shallow sleep cycle 320-a.

[0111] In other examples, if there is no expected overlap between the first receive cycle 325 and the second receive cycle 315, the wake-up manager may configure the radio transceiver chain of the UE 115 to enter the deep sleep cycle 310. For example, the wake-up manager may determine that the second receive cycle 315-c does not overlap with the first receive cycle 325-a or the first receive cycle 335-b, and may configure the radio transceiver chain of the UE 115 to enter the deep sleep cycle 310-b before the second receive cycle 315-c. While in the deep sleep cycle 310-b, both the baseband processing circuitry and the RF front-end circuitry of the UE 115 may be inactive. That is, the wake-up manager may disable the RF front-end circuitry (and one or more switches at the RF front-end circuitry) based on entering the deep sleep cycle 310-b. In this way, when exiting the deep sleep cycle 310-b, the wake-up manager may reprogram the RF front-end circuitry.

[0112] Switching between the deep sleep cycle 310 and the shallow sleep cycle 320 can be based on reducing the number of times the RF front-end circuit is powered on and off to enable the UE 115 to perform paging decoding operations, search and measurement operations, system information block (SIB) reading operations, scanning operations, or a combination thereof with improved efficiency and lower processing cost.

[0113] Figure 4 An example of a timeline 400 that supports techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is illustrated. The timeline 400 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 200, as described with reference to FIG. Figure 1For example, timeline 400 may be based on configuration of base station 105 that may be implemented by UE 115 to provide power savings for UE 115. Alternatively, timeline 400 may be based on configuration of UE 115 that may be implemented by UE 115 to facilitate high reliability and low latency wireless communications associated with various RATs.

[0114] exist Figure 4 In the example of , UE 115 may be configured to support one or more of receive cycles (also referred to as active durations) or sleep cycles (also referred to as inactive durations) associated with various RATs for a radio transceiver chain associated with UE 115. Figure 2 As described, UE 115 may mitigate changes to one or more registers associated with UE 114 based on adjusting active and inactive durations of a radio transceiver chain associated with UE 115. UE 115 may support a first RAT 405-b (e.g., 4G LTE) and a second RAT 405-a (e.g., 5G NR). The first RAT 405-b may be associated with a first receive cycle 425 (e.g., a first active duration) and a first sleep cycle (e.g., a first inactive duration, not shown). Similarly, the second RAT 405-a may be associated with a second receive cycle 415 (e.g., a second active duration) and a second sleep cycle (e.g., a second inactive duration).

[0115] The second sleep cycle associated with the second RAT may include a shallow sleep cycle 420 and a deep sleep cycle 410. In some examples, the duration 435 between the first receive cycles 425 may be equal to a first value (e.g., 640 ms), and the duration 430 between the second receive cycles 415 may be equal to a second value (e.g., 160 ms). In some cases, if an overlap is expected between the first receive cycle 425-a and the second receive cycle 415-b, the radio transceiver chain associated with the UE 115 may switch to a shallow sleep cycle 420-a (e.g., partial sleep mode) instead of the deep sleep cycle 410. Similarly, if an overlap is expected between the first receive cycle 425-b and the second receive cycle 415-d, the radio transceiver chain associated with the UE 115 may switch to a shallow sleep cycle 420-b instead of the deep sleep cycle 410.

[0116] In some other cases, if there is no expected overlap between the first receive cycle 425 and the second receive cycle 415, the radio transceiver chain associated with the UE 115 may switch to the deep sleep cycle 410. For example, if there is no expected overlap between the first receive cycle 425 and the previous second receive cycle (not shown), the radio transceiver chain associated with the UE 115 may enter the deep sleep cycle 410-a. Similarly, if there is no expected overlap between the first receive cycle 425 and the second receive cycle 415-b or the second receive cycle 415-c, respectively, the radio transceiver chain associated with the UE 115 may enter the deep sleep cycle 410-b and the deep sleep cycle 410-c.

[0117] In some examples, UE 115 may detect an overlap between first receive cycle 425 and second receive cycle 415 based at least in part on determining that a leading edge of second receive cycle 415 (e.g., NR C-DRX active duration) falls within first receive cycle 425 (e.g., LTE paging wakeup duration), such as Figure 3 Described. Figure 4 In the example of , the UE 115 can detect the overlap between the first receive cycle 425 and the second receive cycle 415 based on determining that the trailing edge of the second receive cycle 415 (e.g., the second receive cycle 415-a) falls within the first receive cycle 425 (e.g., the first receive cycle 425-a). In other examples, the UE 115 can detect the overlap between the first receive cycle 425 and the second receive cycle 415 based on determining that both the leading edge and the trailing edge of the second receive cycle 415 fall within the first receive cycle 425, as shown in reference Figure 5 As described.

[0118] The timeline 400 may illustrate an example of trailing edge overlap detection between some first receive cycles 425 and some second receive cycles 415. As an example, a wake-up manager at a UE 115 may determine that a trailing edge of a second receive cycle 415-a overlaps with a first receive cycle 425-a. In such an example, the wake-up manager may configure a radio transceiver chain of the UE 115 to enter a shallow sleep cycle 420-a after the second receive cycle 415-a. While in the shallow sleep cycle 420-a, a first portion of the radio transceiver chain (e.g., a baseband processing circuit) may be inactive, while a second portion of the radio transceiver chain (e.g., an RF front-end circuit) may be active. Keeping a portion of the radio transceiver chain active during the shallow sleep cycle 420 may reduce the number of times a register of the radio transceiver chain is overwritten. As a result, the UE 115 may allocate relatively fewer processing resources to configure the registers.

[0119] In other examples, if there is no expected overlap between the first receive cycle 425 and the second receive cycle 415 (e.g., the second receive cycle 415-e), the wake-up manager may configure the radio transceiver chain of the UE 115 to enter the deep sleep cycle 410. For example, the wake-up manager may determine that the second receive cycle 415-c does not overlap with the first receive cycle 425-a or the first receive cycle 425-b, and may configure the radio transceiver chain of the UE 115 to enter the deep sleep cycle 410-c after the second receive cycle 415-c. While in the deep sleep cycle 410-c, both the baseband processing circuitry and the RF front-end circuitry of the UE 115 may be inactive. Switching between the deep sleep cycle 410 and the shallow sleep cycle 420 may enable the UE 115 to perform paging decoding operations (e.g., for DDS SIM and nDDS SIM), search and measurement operations, SIB reading operations, scanning operations, or a combination thereof with improved efficiency and lower processing cost based on reducing the number of times the RF front-end circuitry is powered on and off.

[0120] Figure 5 An example of a timeline 500 that supports techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is illustrated. The timeline 500 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 200, as described with reference to FIG. Figure 1 For example, timeline 500 may be based on configuration of base station 105 that may be implemented by UE 115 to provide power savings for UE 115. Alternatively, timeline 500 may be based on configuration of UE 115 that may be implemented by UE 115 to facilitate high reliability and low latency wireless communications associated with various RATs.

[0121] exist Figure 5 In the example of , UE 115 may be configured to support one or more of a receive cycle (also referred to as an active duration) or a sleep cycle (also referred to as an inactive duration) associated with one or more RATs. UE 115 may also be configured to support a power sleep cycle (also referred to as an inactive duration) for a radio transceiver chain associated with UE 115. As described with reference to Figure 2As described, the UE 115 may use power sleep cycles to mitigate changes to one or more registers associated with the UE 115. For example, the UE 115 may support a first RAT 505-b (e.g., 4G LTE) and a second RAT 505-a (e.g., 5GNR). The first RAT 505-b may be associated with a first receive cycle 525 (e.g., a first active duration) and a first sleep cycle (e.g., a first inactive duration, not shown). Similarly, the second RAT 505-a may be associated with a second receive cycle 515 (e.g., a second active duration) and a second sleep cycle (e.g., a second inactive duration). The second sleep cycle may include a deep sleep cycle 510 and a shallow sleep cycle 520. In some examples, the duration 535 between the first receive cycles 525 may be equal to a first value (e.g., 640ms), and the duration 530 between the second receive cycles 515 may be equal to a second value (e.g., 160ms).

[0122] In some cases, if an overlap is expected between the first receive cycle 525 and the second receive cycle 515, the radio transceiver chain associated with the UE 115 may switch to a shallow sleep cycle 520 (e.g., a partial sleep mode) instead of a deep sleep cycle 510 (e.g., a deep sleep mode). In some examples, the UE 115 may detect an overlap between the first receive cycle 525 and the second receive cycle 515 based at least in part on determining that a leading edge of the second receive cycle 515 (e.g., an NR C-DRX active duration) falls within the first receive cycle 525 (e.g., an LTE paging wakeup duration), as described with reference to Figure 3 In some other examples, the UE 115 may detect an overlap between the first receive cycle 525 and the second receive cycle 515 based at least in part on determining that the trailing edge of the second receive cycle 515 falls within the first receive cycle 525, as described with reference to Figure 4 Described. Figure 5 In the example, UE 115 may detect an overlap between a first receive cycle 525 and a second receive cycle 515 based at least in part on determining that both a leading edge and a trailing edge of a second receive cycle 515 (e.g., a second receive cycle 515-b) fall within a first receive cycle 525 (e.g., a first receive cycle 525-a).

[0123] Timeline 500 may illustrate an example of full overlap detection between a first receive cycle 525 and a second receive cycle 515. As an example, a wake-up manager at UE 115 may determine that a trailing edge and a leading edge of a second receive cycle 515-b overlap with a first receive cycle 525-a. Similarly, the wake-up manager may determine that both a leading edge and a trailing edge of a second receive cycle 515-e overlap with a first receive cycle 525-b. In such an example, the wake-up manager may configure the radio transceiver chain of UE 115 to enter a shallow sleep cycle 520-a before (e.g., on a leading edge of) the second receive cycle 515-b, and may also configure the radio transceiver chain of UE 115 to enter a shallow sleep cycle 520-b after (e.g., on a trailing edge of) the second receive cycle 515-b. Similarly, the wake-up manager may configure the radio transceiver chain of the UE 115 to enter a shallow sleep cycle 520 (e.g., shallow sleep cycle 520-c) before and after the second receive cycle 515-e. While in the shallow sleep cycle 520-a and the shallow sleep cycle 520-b, a first portion of the radio transceiver chain (e.g., baseband processing circuitry) may be inactive, while a second portion of the radio transceiver chain (e.g., RF front-end circuitry) may be active.

[0124] In other examples, if there is no expected overlap between the first receive cycle 525 and the second receive cycle 515 (e.g., the second receive cycle 515-c), the wake-up manager may configure the radio transceiver chain of the UE 115 to enter the deep sleep cycle 510. For example, the wake-up manager may determine that the leading edge of the second receive cycle 515-d does not overlap with the first receive cycle 525-a or the first receive cycle 525-b, and may configure the radio transceiver chain of the UE 115 to enter the deep sleep cycle 510-b before the second receive cycle 515-d. Similarly, the wake-up manager may determine that the leading edge of the second receive cycle 515-a does not overlap with the first receive cycle 525, and may configure the UE 115 to enter the deep sleep cycle 510-a. While in the deep sleep cycle 510-a or the deep sleep cycle 510-b, both the baseband processing circuitry and the RF front-end circuitry of the UE 115 may be inactive. Switching between the deep sleep cycle 510 and the shallow sleep cycle 520 can be based on reducing the number of times the RF front-end circuit is powered up and down so that the UE 115 can perform paging decoding operations, search and measurement operations, system information block (SIB) reading operations, scanning operations, or a combination thereof with improved efficiency and lower processing cost.

[0125] Figure 6An example of a timeline 600 supporting techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is illustrated. The timeline 600 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 200, as described with reference to FIG. Figure 1 For example, timeline 600 may be based on configuration of base station 105 that may be implemented by UE 115 to provide power savings for UE 115. Alternatively, timeline 600 may be based on configuration of UE 115 that may be implemented by UE 115 to facilitate high reliability and low latency wireless communications associated with various RATs.

[0126] exist Figure 6 In the example of , UE 115 may be configured to support one or more of a receive cycle (also referred to as an active duration) or a sleep cycle (also referred to as an inactive duration) associated with one or more RATs. UE 115 may also be configured to support a power sleep cycle (also referred to as an inactive duration) for a radio transceiver chain associated with UE 115. As described with reference to Figure 2 As described, the UE 115 may use power sleep cycling to mitigate changes to one or more registers associated with the UE 115 .

[0127] UE 115 may support a first RAT 605-b (e.g., 4G LTE) and a second RAT 605-a (e.g., 5G NR). The first RAT 605-b may be associated with a first receive cycle 625 (e.g., a first active duration) and a first sleep cycle (e.g., a first inactive duration, not shown). Similarly, the second RAT 605-a may be associated with a second receive cycle 615 (e.g., a second active duration) and a deep sleep cycle 710 (e.g., a second inactive duration). In some examples, the duration 635 between the first receive cycles 625 may be equal to a first value (e.g., 640 ms), and the duration 630 between the second receive cycles 615 may be equal to a second value (e.g., 160 ms).

[0128] In some examples, if a first receive cycle 625-a associated with a first RAT 605-b overlaps (e.g., in the time domain) with a second receive cycle 615-b associated with a second RAT 605-a, the SIMs associated with the first RAT 605-b and the second RAT 605-a may overwrite one or more common (e.g., shared) registers at a radio transceiver chain of the UE 115. For example, if a first SIM associated with the first RAT 605-b (e.g., an nDDS SIM) is using one or more shared registers to monitor communications according to the first RAT 605-b, and a second SIM associated with the second RAT 605-a (e.g., a DDS SIM) overwrites the shared registers, the UE 115 may experience performance degradation or loss of connectivity for the first RAT 615-b.

[0129] The UE 115 may be configured to mitigate overwriting of one or more registers of the RF front-end circuitry associated with the UE 115 based on starting the second receive cycle 615 (e.g., the second receive cycle 615-b) early or extending the second receive cycle 615 (e.g., the second receive cycle 615-d) so as to completely overlap with the first receive cycle 625. For example, the UE 115 may attach the second receive cycle 615-f to the leading edge of the second receive cycle 615-b such that the combination of the second receive cycle 615-b and the second receive cycle 615-f completely overlaps with the first receive cycle 625-a. Similarly, the UE 115 may attach the second receive cycle 615-g to the second receive cycle 615-d such that the combination of the second receive cycle 615-d and the second receive cycle 615-g completely overlaps with the first receive cycle 625-b.

[0130] In order to extend the second receive cycle 615 so that the second receive cycle 615 completely overlaps with the first receive cycle 625, the UE 115 may reduce the duration of the deep sleep cycle 610. For example, the UE 115 may reduce the duration of the deep sleep cycle 610-b so that the UE 115 can attach the second receive cycle 615-f to the leading edge of the second receive cycle 615-b. Similarly, the UE 115 may reduce the duration of the deep sleep cycle 610-e so that the UE 115 can attach the second receive cycle 615-g to the leading edge of the second receive cycle 615-d. In other examples, the UE 115 may not adjust some deep sleep cycles 610. For example, the UE 115 may not shorten the deep sleep cycle 610-a, the deep sleep cycle 610-c, or the deep sleep cycle 610-d because these deep sleep cycles 610 may not overlap with the first receive cycle 625. Likewise, the UE 115 may not extend the second receive cycle 615 - a , the second receive cycle 615 - c , or the second receive cycle 615 - e because these second receive cycles 615 may not overlap with the first receive cycle 625 .

[0131] In some examples, the wake-up manager of UE 115 may determine that the first receive cycle 625-a overlaps with the leading edge of the second receive cycle 615-b, and the first receive cycle 615-b overlaps with the trailing edge of the second receive cycle 615-d. Accordingly, the wake-up manager may attach the second receive cycle 615-f to the leading edge of the second receive cycle 615-b, and may attach the second receive cycle 615-g to the trailing edge of the second receive cycle 615-d. Therefore, the combined duration of the second receive cycle 615-b and the second receive cycle 615-f may completely overlap with the first receive cycle 625-a. Similarly, the combined duration of the second receive cycle 615-d and the second receive cycle 615-g may completely overlap with the first receive cycle 625-b.

[0132] By completely overlapping (e.g., wrapping) the first receive cycle 625 via a leading edge extension or a trailing edge extension of the second receive cycle 615, the UE 115 may reduce the number of times a radio transceiver chain at the UE 115 is powered up and down. As a result, the UE 115 may reduce the number of times registers associated with the radio transceiver chain are overwritten, which may enable the UE 115 to use the registers at a relatively low processing cost, among other benefits.

[0133] Figure 7 An example of a timeline 700 that supports techniques for managing radio transceiver chains for multiple RATs in accordance with various aspects of the present disclosure is illustrated. The timeline 700 may implement aspects of the wireless communication system 100, or may be implemented by aspects of the wireless communication system 200, as described with reference to FIG. Figure 1For example, timeline 700 may be based on configuration of base station 105 that may be implemented by UE 115 to provide power savings for UE 115. Alternatively, timeline 700 may be based on configuration of UE 115 that may be implemented by UE 115 to facilitate high reliability and low latency wireless communications associated with various RATs.

[0134] The UE 115 may be configured to support one or more of a receive cycle (also referred to as an active duration) or a sleep cycle (also referred to as an inactive duration) associated with one or more RATs 705. The UE 115 may also be configured to support a power sleep cycle (also referred to as an inactive duration) for a radio transceiver chain associated with the UE 115. Figure 2 As described, the UE 115 may use power sleep cycling to mitigate changes to one or more registers associated with the UE 115 .

[0135] UE 115 may support a first RAT 705-b (e.g., 4G LTE) and a second RAT 705-a (e.g., 5G NR). The first RAT 705-b may be associated with a first receive cycle 725 (e.g., a first active duration) and a first sleep cycle (e.g., a first inactive duration, not shown). Similarly, the second RAT 705-a may be associated with a second receive cycle 715 (e.g., a second active duration) and a deep sleep cycle 710 (e.g., a second inactive duration). In some examples, the duration 735 between the first receive cycles 725 may be equal to a first value (e.g., 640 ms), and the duration 730 between the second receive cycles 715 may be equal to a second value (e.g., 160 ms).

[0136] In some cases, if an overlap between the first receive cycle 725 and the second receive cycle 715 is expected, the radio transceiver chain associated with the UE 115 may switch to a partial power saving mode (e.g., a partial sleep mode) instead of the deep sleep cycle 710, as described with reference to FIG. Figures 3 to 5In some examples, if a first receive cycle 725 associated with a first RAT 705-b overlaps (e.g., in the time domain) with a second receive cycle 715 associated with a second RAT 705-a, the SIMs corresponding to the first RAT 705-b and the second RAT 705-a may overwrite one or more registers at the UE 115, which may interrupt wireless communication at the UE 115. For example, if a first SIM associated with a first RAT 705-b is using one or more registers to monitor communications according to the first RAT 705-b, and a second SIM associated with the second RAT 705-a overwrites the one or more registers, the UE 115 may experience performance degradation or loss of connectivity for the first RAT 705-b.

[0137] exist Figure 7 In an example of , UE 115 may be configured to mitigate overwriting of one or more registers of an RF front-end circuit associated with UE 115 based on extending the leading and trailing edges of a second receive cycle 715 (e.g., second receive cycle 715-b) to completely overlap with a first receive cycle 725 (e.g., first receive cycle 715-a). For example, UE 115 may extend the leading edge of second receive cycle 715-b with second receive cycle 715-f, and may extend the trailing edge of second receive cycle 715-b with second receive cycle 715-g. If first receive cycle 725-a completely overlaps with a combination of second receive cycle 715-b, second receive cycle 715-f, and second receive cycle 715-g, the likelihood of overwriting register states in the RF front-end circuit of UE 115 may be reduced. Similarly, UE 115 may extend second receive cycle 715-e with second receive cycle 715-h and second receive cycle 715-i such that the combination of second receive cycle 715-e, second receive cycle 715-h and second receive cycle 715-i completely overlaps with first receive cycle 725-b.

[0138] In order to extend the second receive cycle 715 so that the second receive cycle 715 completely overlaps with the first receive cycle 725, the UE 115 may reduce the duration of the deep sleep cycle 710. For example, the UE 115 may reduce the duration of the deep sleep cycle 710-b and the duration of the deep sleep cycle 710-c so that the UE 115 can attach the second receive cycle 715-f and the second receive cycle 715-g to the second receive cycle 715-b. Similarly, the UE 115 may reduce the duration of the deep sleep cycle 710-e so that the UE 115 can attach the second receive cycle 715-h and the second receive cycle 715-i to the second receive cycle 715-e. In other examples, the UE 115 may not adjust some deep sleep cycles 710. For example, the UE 115 may not shorten the deep sleep cycle 710-a or the deep sleep cycle 710-d because these deep sleep cycles 710 may not overlap with the first receive cycle 725. Likewise, the UE 115 may not extend the second receive cycle 715 - a , the second receive cycle 715 - c , or the second receive cycle 715 - d because these second receive cycles 715 may not overlap with the first receive cycle 725 .

[0139] By completely overlapping (e.g., wrapping) the first receive cycle 725 via a leading edge extension or a trailing edge extension of the second receive cycle 715, the UE 115 may reduce the number of times a radio transceiver chain at the UE 115 is powered up and down. As a result, the UE 115 may reduce the number of times registers associated with the radio transceiver chain are overwritten, which may enable the UE 115 to use the registers at a relatively low processing cost, among other benefits.

[0140] Figure 8 A block diagram 800 of a device 805 supporting techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is shown. The device 805 may be an example of aspects of a UE 115 as described herein. In some examples, the device 805 may be an RF front-end circuit. The device 805 may include a register set 810 that may be associated with an antenna set 815. Additionally or alternatively, the device 805 may include a register set 820 that may be associated with an antenna set 825. The device 805 supports multiple RATs, which may include 2G, 3G, 4G, 5G, 6G, or any other type of RAT.

[0141] In some examples, when device 805 is in a receive cycle (e.g., a connected state), the SIM associated with device 805 may use the data stored in registers 810 and 820 to perform wireless communications. However, in some examples, device 805 may enter a deep sleep cycle. While in a deep sleep cycle, device 805 may overwrite one or more of registers 810 or 820. As a result, the data stored in registers 810 and 820 may be lost. Therefore, the SIM associated with device 805 may not be able to access the data previously stored in registers 810 and 820, which may interrupt wireless communications at device 805. As shown in FIG. Figures 3 to 5 As described above, to mitigate such overwriting, device 805 may enter a shallow sleep cycle instead of a deep sleep cycle. During the shallow sleep cycle, device 805 may refrain from overwriting register 810 or register 820. Additionally or alternatively, device 804 may extend the duration of the receive cycle so that register 810 and register 820 are not overwritten, as described above with reference to FIG. Figure 6 and 7 As described.

[0142] In some examples, register set 810 associated with antenna set 815 may correspond to one type of RAT (e.g., 4G), while register set 820 associated with antenna set 825 may correspond to another type of RAT (e.g., 5G). Device 805 may support associating one or more of register set 810 or register set 820 with one or more of antenna set 815 or antenna set 825. For paging and C-DRX reception, device 805 may be configured to use antenna subsets. This pre-association of registers and antenna subsets may enable dynamic allocation of one or more available registers or antenna sets to receive cycles for different RATs while mitigating conflicts for RF front-end circuitry.

[0143] Fig. 9 A block diagram 900 of a device 905 supporting techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is shown. The device 905 may be an example of aspects of a UE 115 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0144] The receiver 910 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to techniques for managing radio transceiver chains for multiple RATs), user data, control information, or any combination thereof. The information may be communicated to other components of the device 905. The receiver 910 may utilize a single antenna or a collection of multiple antennas.

[0145] The transmitter 915 may provide a means for transmitting signals generated by other components of the device 905. For example, the transmitter 915 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to techniques for managing radio transceiver chains for multiple RATs), user data, control information, or any combination thereof. In some examples, the transmitter 915 may be co-located with the receiver 910 in a transceiver component. The transmitter 915 may utilize a single antenna or a collection of multiple antennas.

[0146] The communication manager 920, the receiver 910, the transmitter 915, or various combinations thereof, or various components thereof may be examples of means for performing various aspects of the techniques for managing a radio transceiver chain for multiple RATs as described herein. For example, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may support methods for performing one or more functions described herein.

[0147] In some examples, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit system). The hardware may include a 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 that is configured to or otherwise supports means for performing the functions described in the present disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0148] Additionally or alternatively, in some examples, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented by code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be performed by a general purpose processor, a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured to or otherwise support means for performing the functions described in the present disclosure).

[0149] In some examples, communication manager 920 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise cooperating with receiver 910, transmitter 915, or both. For example, communication manager 920 may receive information from receiver 910, transmit information to transmitter 915, or be integrated in conjunction with receiver 910, transmitter 915, or both to receive information, transmit information, or perform various other operations described herein.

[0150] According to examples disclosed herein, the communication manager 920 may support wireless communications at the device 905. For example, the communication manager 920 may be configured to or otherwise support means for monitoring a channel for wireless communications associated with a first RAT during one or more of a first active duration or a first inactive duration, during which the device 905 operates in a first power mode. The communication manager 920 may be configured to or otherwise support means for monitoring a channel for wireless communications associated with a second RAT during one or more of a second active duration or a second inactive duration, during which the device 905 operates in one or more of a first power mode or a second power mode, the first power mode being based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode being based on the overlap between one or more of the second active duration or the third active duration and the first active duration. The communications manager 920 may be configured or otherwise support means for operating the device 905 according to the first mode or the second mode based on monitoring of channels associated with the first RAT and the second RAT.

[0151] By including or configuring a communication manager 920 according to examples as described herein, a device 905 (eg, a processor controlling or otherwise coupled to a receiver 910, a transmitter 920, a communication manager 920, or a combination thereof) may support techniques for reduced power consumption.

[0152] Fig.10A block diagram 1005 of a device 1000 supporting techniques for managing a radio transceiver chain for multiple RATs in accordance with various aspects of the present disclosure is shown. The device 1005 may be an example of aspects of the device 905 or UE 115 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communication manager 1020. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0153] The receiver 1010 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to techniques for managing radio transceiver chains for multiple RATs), user data, control information, or any combination thereof. The information may be communicated to other components of the device 1005. The receiver 1010 may utilize a single antenna or a collection of multiple antennas.

[0154] The transmitter 1015 may provide a means for transmitting signals generated by other components of the device 1005. For example, the transmitter 1015 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to techniques for managing radio transceiver chains for multiple RATs), user data, control information, or any combination thereof. In some examples, the transmitter 1015 may be co-located in a transceiver component with the receiver 1010. The transmitter 1015 may utilize a single antenna or a collection of multiple antennas.

[0155] The device 1005 or its various components may be examples of apparatuses for performing various aspects of the technology for managing a radio transceiver chain for multiple RATs as described herein. For example, the communication manager 1020 may include a channel component 1025a, a mode component 1030, or any combination thereof. The communication manager 1020 may be an example of various aspects of the communication manager 920 as described herein. In some examples, the communication manager 1020 or its various components may be configured to perform various operations (e.g., receive, monitor, transmit) using the receiver 1010, the transmitter 1015, or both, or otherwise in cooperation with the receiver 310, the transmitter 315, or both. For example, the communication manager 1020 may receive information from the receiver 1010, transmit information to the transmitter 1015, or be integrated with the receiver 1010, the transmitter 1015, or both to receive information, transmit information, or perform various other operations described herein.

[0156] According to examples disclosed herein, the communication manager 1020 can support wireless communications at the device 1005. The channel component 1025 can be configured to or otherwise support means for monitoring a channel for wireless communications associated with a first RAT during one or more of a first active duration or a first inactive duration, the device 1005 operating in a first power mode during the first inactive duration. The channel component 1025 can be configured to or otherwise support means for monitoring a channel for wireless communications associated with a second RAT during one or more of a second active duration or a second inactive duration, the device 1005 operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on the overlap between one or more of the second active duration or the third active duration and the first active duration. Mode component 1030 may be configured or otherwise support means for operating device 1005 according to the first mode or the second mode based on monitoring of channels associated with the first RAT and the second RAT.

[0157] Fig.11 A block diagram 1100 of a communication manager 1120 supporting techniques for managing radio transceiver chains for multiple RATs in accordance with various aspects of the present disclosure is shown. The communication manager 1120 may be an example of aspects of the communication manager 920, the communication manager 1020, or both described herein. The communication manager 1120 or its various components may be examples of devices for performing various aspects of the techniques for managing radio transceiver chains for multiple RATs as described herein. For example, the communication manager 1120 may include a channel component 1125, a mode component 1130, a timing component 1135, an RF chain component 1140, a register component 1145, a SIM component 1150, a circuit component 1155, a configuration component 1160, or any combination thereof. Each of these components may communicate directly or indirectly with each other (e.g., via one or more buses).

[0158] According to examples disclosed herein, the communication manager 1120 may support wireless communications at the device. The channel component 1125 may be configured to or otherwise support a means for monitoring a channel during one or more of a first active duration or a first inactive duration to find wireless communications associated with a first RAT, the device operating in a first power mode during the first inactive duration. In some examples, the channel component 1125 may be configured to or otherwise support a means for monitoring a channel during one or more of a second active duration or a second inactive duration to find wireless communications associated with a second RAT, the device operating in a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on the overlap between one or more of the second active duration or the third active duration and the first active duration. The mode component 1130 may be configured or otherwise support means for operating the device according to the first mode or the second mode based on monitoring of channels associated with the first RAT and the second RAT.

[0159] In some examples, the device includes a radio transceiver chain for receiving or transmitting one or more of wireless communications associated with one or more of the first RAT or the second RAT. In some examples, the mode component 1130 may be configured to or otherwise support a device for operating the radio transceiver chain associated with the device in a first power mode during the first inactive duration based on monitoring the channel during one or more of the first active duration or the first inactive duration to find wireless communications associated with the first RAT. In some examples, to support monitoring the channel to find wireless communications associated with the first RAT, the RF chain component 1140 may be configured to or otherwise support a device for enabling the radio transceiver chain to monitor the channel during the first active duration to find wireless communications associated with the first RAT based on a timer. In some examples, to support monitoring the channel to find wireless communications associated with the first RAT, the timing component 1135 may be configured to or otherwise support a device for activating the timer based on enabling the radio transceiver chain to monitor the channel during the first active duration to find wireless communications associated with the first RAT.

[0160] In some examples, to support monitoring the channel for wireless communications associated with the first RAT, the RF chain component 1140 may be configured or otherwise support means for disabling the radio transceiver chain from monitoring the channel for wireless communications associated with the first RAT by switching the radio transceiver chain to operate in the first power mode during the first inactive duration based on expiration of a timer. In some examples, the RF chain component 1140 may be configured or otherwise support means for operating the radio transceiver chain associated with the device in one or more of the first power mode or the second power mode during the second inactive duration based on monitoring the channel for wireless communications associated with the second RAT during one or more of the second active duration or the second inactive duration.

[0161] In some examples, to support monitoring the channel for wireless communications associated with the second RAT, the RF chain component 1140 may be configured to or otherwise support means for enabling the radio transceiver chain to monitor the channel for wireless communications associated with the second RAT during a second active duration based on a timer. In some examples, to support monitoring the channel for wireless communications associated with the second RAT, the timing component 1135 may be configured to or otherwise support means for activating the timer based on enabling the radio transceiver chain to monitor the channel for wireless communications associated with the second RAT during the second active duration. In some examples, to support monitoring the channel for wireless communications associated with the second RAT, the RF chain component 1140 may be configured to or otherwise support means for disabling the radio transceiver chain from monitoring the channel for wireless communications associated with the second RAT by switching the radio transceiver chain to operate in the first power mode or the second power mode during the second inactive duration based on expiration of the timer.

[0162] In some examples, RF chain component 1140 may be configured or otherwise support means for switching the radio transceiver chain to operate in the first power mode during the second inactive duration based on the first inactive duration not overlapping with one or more of an end portion of the second active duration or a beginning portion of a third active duration following the second active duration. In some examples, RF chain component 1140 may be configured or otherwise support means for switching the radio transceiver chain to operate in the second power mode during the second inactive duration based on the first inactive duration overlapping with one or more of an end portion of the second active duration or a beginning portion of a third active duration following the second active duration.

[0163] In some examples, configuration component 1160 may be configured to or otherwise support means for receiving control signaling indicating a configuration for the device, the configuration indicating one or more of a first active duration, a first inactive duration, a second active duration, a second inactive duration, or a third active duration. In some examples, mode component 1130 may be configured to or otherwise support means for wherein operating the radio transceiver chain in one or more of a first power mode or a second power mode is based on the configuration. In some instances, timing component 1135 may be configured to or otherwise support means for adjusting the second active duration based on a portion of the first active duration overlapping a portion of the second active duration.

[0164] In some examples, the timing component 1135 may be configured to or otherwise support a device for determining one or more of the beginning of the first active duration or the beginning of the second active duration based on the scheduling information. In some examples, the timing component 1135 may be configured to or otherwise support a device for adjusting the beginning of the second active duration to occur before the beginning of the first active duration based on determining that a portion of the first active duration overlaps with a portion of the second active duration. In some examples, the timing component 1135 may be configured to or otherwise support a device for determining one or more of the end of the first active duration or the end of the second active duration based on the scheduling information. In some examples, the timing component 1135 may be configured to or otherwise support a device for adjusting the end of the second active duration to occur after the end of the first active duration based on determining that a portion of the first active duration overlaps with a portion of the second active duration.

[0165] In some examples, the RF chain component 1140 may be configured to or otherwise support means for allocating a first set of antennas associated with the device based on the configuration to monitor a channel during one or more of a first active duration or a first inactive duration to search for wireless communications associated with a first RAT. In some examples, the RF chain component 1140 may be configured to or otherwise support means for allocating a second set of antennas associated with the device based on the configuration to monitor a channel during one or more of a second active duration or a second inactive duration to search for wireless communications associated with a second RAT. In some examples, the first set of antennas does not overlap with the second set of antennas. In some examples, the RF chain component 1140 may be configured to or otherwise support means for reallocating one or more of the first set of antennas or the second set of antennas based on one or more of the first active duration or the second active duration.

[0166] In some examples, register component 1145 may be configured to or otherwise support means for managing one or more memory registers associated with the device for one or more of a first RAT and a second RAT, the one or more memory registers corresponding to a radio transceiver chain associated with the device, the one or more memory registers shared between the first RAT and the second RAT. In some examples, to support management of the one or more memory registers, SIM component 1150 may be configured to or otherwise support means for inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting a state of the one or more memory registers, the first SIM corresponding to the first RAT and the second SIM corresponding to the second RAT.

[0167] In some examples, SIM component 1150 may be configured or otherwise support means for inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting an operating mode of a radio transceiver chain associated with the device. In some examples, mode component 1130 may be configured or otherwise support means for adjusting an operating mode of a radio transceiver chain associated with the device based on an acknowledgement between a first SIM associated with the device and a second SIM associated with the device, the first SIM corresponding to a first RAT and the second SIM corresponding to a second RAT.

[0168] In some examples, the circuit component 1135 may be configured to or otherwise support a device for disabling a baseband circuit and an RF front-end circuit associated with the device when the device is operated in a first power mode. In some examples, the circuit component 1135 may be configured to or otherwise support a device for disabling a baseband circuit associated with the device based on the device operating in a second power mode. In some examples, the circuit component 1135 may be configured to or otherwise support a device for enabling an RF front-end circuit associated with the device based on the device operating in a second power mode. In some examples, the first active duration includes a 4G wake-up duration, and the second active duration includes a 5G discontinuous reception duration. In some examples, the first RAT corresponds to a first SIM associated with the device, and the second RAT corresponds to a second SIM associated with the device. In some examples, the device includes a MIMO radio transceiver chain capable of performing spatial multiplexing. In some examples, one or more of the first RAT or the second RAT include a 4G RAT or a 5G RAT, or any other type of RAT.

[0169] Fig.12A diagram of a system 1200 including a device 1205 supporting techniques for managing a radio transceiver chain for multiple RATs according to various aspects of the present disclosure is shown. The device 1205 may be an example of a device 905, a device 1005, or a UE 115 as described herein or include a component of the device 905, the device 1005, or the UE 115. The device 1205 may communicate wirelessly with one or more base stations 105, the UE 115, or any combination thereof. The device 1205 may include components for two-way voice and data communications, including components for transmitting and receiving communications, such as a communication manager 1220, an input / output (I / O) controller 1210, a transceiver 1215, an antenna 1225, a memory 1230, a code 1235, and a processor 1240. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 1245).

[0170] I / O controller 1210 can manage input and output signals for device 1205. I / O controller 1210 can also manage peripheral devices that are not integrated into device 1205. In some cases, I / O controller 1210 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1210 can utilize an operating system, such as or another known operating system. Additionally or alternatively, I / O controller 1210 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 1210 may be implemented as part of a processor (such as processor 1240). In some cases, a user may interact with device 1205 via I / O controller 1210 or via hardware components controlled by I / O controller 1210.

[0171] In some cases, the device 1205 may include a single antenna 1225. However, in some other cases, the device 1205 may have more than one antenna 1225, which may be capable of transmitting or receiving multiple wireless transmissions concurrently. The transceiver 1215 may communicate bidirectionally via one or more antennas 1225, a wired or wireless link, as described herein. For example, the transceiver 1215 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1215 may also include a modem to modulate packets and provide the modulated packets to one or more antennas 1225 for transmission, and demodulate packets received from one or more antennas 1225. The transceiver 1215 or the transceiver 1215 and one or more antennas 1225 may be examples of transmitters 915, transmitters 1015, receivers 910, receivers 1010, or any combination thereof, or components thereof as described herein.

[0172] Memory 1230 may include random access memory (RAM) and read-only memory (ROM). Memory 1230 may store computer-readable, computer-executable code 1235 including instructions that, when executed by processor 1240, cause device 1205 to perform various functions described herein. Code 1235 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 1235 may not be directly executed by processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein. In some cases, memory 1230 may include, among other things, a basic I / O system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0173] The processor 1240 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, the processor 1240 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1240. The processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) so that the device 1205 performs various functions (e.g., supporting functions or tasks for managing radio transceiver chains for multiple RATs). For example, the device 1205 or a component of the device 1205 may include a processor 1240 and a memory 1230 coupled to the processor 1240, and the processor 1240 and the memory 1230 are configured to perform the various functions described herein.

[0174] According to examples disclosed herein, the communication manager 1220 can support wireless communications at the device 1205. For example, the communication manager 1220 can be configured to or otherwise support means for monitoring a channel for wireless communications associated with a first RAT during one or more of a first active duration or a first inactive duration, during which the device 1205 operates in a first power mode. The communication manager 1220 can be configured to or otherwise support means for monitoring a channel for wireless communications associated with a second RAT during one or more of a second active duration or a second inactive duration, during which the device 1205 operates in one or more of a first power mode or a second power mode, the first power mode being based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode being based on the overlap between one or more of the second active duration or the third active duration and the first active duration. The communication manager 1220 may be configured to or otherwise support means for operating the device 1205 according to a first mode or a second mode based on monitoring of channels associated with the first RAT and the second RAT. By including or configuring the communication manager 1220 according to the examples described herein, the device 1205 may support techniques for more efficient communication resource utilization and longer battery life.

[0175] In some examples, the communication manager 1220 may be configured to perform various operations (e.g., receive, monitor, transmit) using or otherwise in cooperation with the receiver 1215, one or more antennas 1225, or any combination thereof. Although the communication manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1220 may be supported or performed by the processor 1240, the memory 1230, the code 1235, or any combination thereof. For example, the code 1235 may include instructions executable by the processor 1240 to cause the device 1205 to perform various aspects of the techniques for managing radio transceiver chains for multiple RATs as described herein, or the processor 1240 and the memory 1230 may be otherwise configured to perform or support such operations.

[0176] Fig.13 A flow chart illustrating a method 1300 for supporting techniques for managing radio transceiver chains for multiple RATs according to various aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE or components thereof as described with reference to Figures 1 to 12The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.

[0177] At 1305, the method may include monitoring a channel for wireless communications associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration. The operations of 1305 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1305 may be described as described with reference to Fig.11 The described channel component 1125 is executed.

[0178] At 1310, the method may include monitoring a channel for wireless communications associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on overlap between one or more of the second active duration or the third active duration and the first active duration. The operations of 1310 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1310 may be performed as described with reference to Fig.11 The described channel component 1125 is executed.

[0179] At 1315, the method may include operating the device according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT. The operations of 1315 may be performed according to the examples disclosed herein. In some examples, aspects of the operations of 1315 may be performed as described with reference to Fig.11 The described mode component 1130 is executed.

[0180] Fig.14 A flow chart illustrating a method 1400 for supporting techniques for managing radio transceiver chains for multiple RATs according to various aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE or components thereof as described herein. Figures 1 to 12 The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.

[0181] At 1405, the method includes receiving control signaling indicating a configuration for the device, the configuration indicating one or more of a first active duration, a first inactive duration, a second active duration, a second inactive duration, or a third active duration. The operations of 1405 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Fig.11 The described configuration component 1160 is executed.

[0182] At 1410, the method may include monitoring a channel for wireless communications associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration. The operations of 1410 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Fig.11 The described channel component 1125 is executed.

[0183] At 1415, the method may include monitoring the channel for wireless communications associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on overlap between one or more of the second active duration or the third active duration and the first active duration. The operations of 1415 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1415 may be performed as described with reference to Fig.11 The described channel component 1125 is executed.

[0184] At 1420, the method may include operating the device according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT. The operations of 1420 may be performed according to the examples disclosed herein. In some examples, aspects of the operations of 1420 may be described as described with reference to Fig.11 The described mode component 1130 is executed.

[0185] Fig.15 A flow chart illustrating a method 1500 for supporting techniques for managing radio transceiver chains for multiple RATs according to various aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE or components thereof as described with reference to Figures 1 to 12The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.

[0186] At 1505, the method may include allocating, based on the configuration, a first set of antennas associated with the device to monitor a channel during one or more of a first active duration or a first inactive duration for wireless communications associated with a first RAT. The operations of 1505 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1550 may be performed as described with reference to Fig.11 The described RF chain component 1140 is performed.

[0187] At 1510, the method may include allocating, based on the configuration, a second set of antennas associated with the device to monitor the channel during one or more of a second active duration or a second inactive duration for wireless communications associated with a second RAT. The operations of 1510 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Fig.11 The described RF chain component 1140 is performed.

[0188] Fig.16 A flow chart illustrating a method 1600 for supporting techniques for managing radio transceiver chains for multiple RATs according to various aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE or components thereof as described herein. Figures 1 to 12 The described UE 115 may be performed. In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.

[0189] At 1605, the method may include monitoring a channel for wireless communications associated with a first RAT during one or more of a first active duration or a first inactive duration, the device operating in a first power mode during the first inactive duration. The operations of 1605 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1605 may be described as described with reference to Fig.11 The described channel component 1125 is executed.

[0190] At 1610, the method may include monitoring a channel for wireless communications associated with a second RAT during one or more of a second active duration or a second inactive duration, the device operating in one or more of a first power mode or a second power mode during the second inactive duration, the first power mode based on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode based on overlap between one or more of the second active duration or the third active duration and the first active duration. The operations of 1610 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1610 may be performed as described with reference to Fig.11 The described channel component 1125 is executed.

[0191] At 1615, the method may include operating the device according to the first mode or the second mode based on monitoring of the channel associated with the first RAT and the second RAT. The operations of 1615 may be performed according to the examples disclosed herein. In some examples, aspects of the operations of 1615 may be described as referring to Fig.11 The described mode component 1130 is executed.

[0192] At 1620, the method may include managing one or more memory registers associated with the device for one or more of the first RAT and the second RAT, the one or more memory registers corresponding to a radio transceiver chain associated with the device, the one or more memory registers shared between the first RAT and the second RAT. The operations of 1620 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1620 may be performed as described with reference to Fig.11 The described register component 1145 is implemented.

[0193] The following provides an overview of various aspects of the disclosure:

[0194] Aspect 1: A method for wireless communication at a device, comprising: monitoring a channel during one or more of a first active duration or a first inactive duration to search for wireless communication associated with a first RAT, the device operating in a first power mode during the first inactive duration; monitoring a channel during one or more of a second active duration or a second inactive duration to search for wireless communication associated with a second RAT, the device operating in one or more of the first power mode or a second power mode during the second inactive duration, the first power mode being based at least in part on the absence of overlap between one or more of the second active duration or a third active duration and the first active duration, the second power mode being based at least in part on the overlap between one or more of the second active duration or the third active duration and the first active duration; and operating the device according to the first mode or the second mode based at least in part on the monitoring of the channel associated with the first RAT and the second RAT.

[0195] Aspect 2: The method of aspect 1, wherein the apparatus comprises a radio transceiver chain for receiving or transmitting one or more of wireless communications associated with one or more of the first RAT or the second RAT.

[0196] Aspect 3: The method of Aspect 2 further includes: operating a radio transceiver chain associated with the device in a first power mode during the first inactive period based at least in part on monitoring a channel during one or more of a first active period or a first inactive period to search for wireless communications associated with a first RAT.

[0197] Aspect 4: A method as in Aspect 3, wherein monitoring a channel for wireless communications associated with a first RAT comprises: enabling a radio transceiver chain to monitor a channel for wireless communications associated with the first RAT during a first active duration based at least in part on a timer; activating the timer based at least in part on enabling the radio transceiver chain to monitor a channel for wireless communications associated with the first RAT during the first active duration; and disabling the radio transceiver chain from monitoring the channel for wireless communications associated with the first RAT by switching the radio transceiver chain to operate in a first power mode during a first inactive duration based at least in part on expiration of the timer.

[0198] Aspect 5: A method as in any of Aspects 3 to 4, further comprising: operating a radio transceiver chain associated with the device in one or more of a first power mode or a second power mode during the second inactive period based at least in part on monitoring a channel to search for wireless communications associated with a second RAT during one or more of a second active period or a second inactive period.

[0199] Aspect 6: A method as in Aspect 5, wherein monitoring the channel for wireless communications associated with a second RAT comprises: enabling a radio transceiver chain to monitor the channel for wireless communications associated with the second RAT during a second active duration based at least in part on a timer; activating the timer based at least in part on enabling the radio transceiver chain to monitor the channel for wireless communications associated with the second RAT during the second active duration; and disabling the radio transceiver chain from monitoring the channel for wireless communications associated with the second RAT by switching the radio transceiver chain to operate in a first power mode or a second power mode during a second inactive duration based at least in part on expiration of the timer.

[0200] Aspect 7: The method of Aspect 6 further includes: switching the radio transceiver chain to operate in the first power mode during the second inactive duration based at least in part on the first inactive duration not overlapping with one or more of the end portion of the second active duration or the beginning portion of a third active duration after the second active duration.

[0201] Aspect 8: A method as in any of Aspects 6 to 7, further comprising: switching the radio transceiver chain to operate in a second power mode during the second inactive duration based at least in part on the overlap of the first inactive duration with one or more of the end portion of the second active duration or the beginning portion of a third active duration after the second active duration.

[0202] Aspect 9: A method as in any one of Aspects 2 to 8, further comprising: receiving control signaling indicating a configuration for the device, the configuration indicating one or more of a first active duration, a first inactive duration, a second active duration, a second inactive duration, or a third active duration, wherein operating the radio transceiver chain in one or more of the first power mode or the second power mode is at least partially based on the configuration.

[0203] Aspect 10: The method of any one of aspects 1 to 9, further comprising: adjusting the second activity duration based at least in part on a portion of the first activity duration overlapping a portion of the second activity duration.

[0204] Aspect 11: The method of Aspect 10 further includes: determining one or more of the start of the first active duration or the start of the second active duration based at least in part on scheduling information; and adjusting the start of the second active duration to occur before the start of the first active duration based at least in part on determining that a portion of the first active duration overlaps with a portion of the second active duration.

[0205] Aspect 12: A method as in any one of Aspects 10 to 11, further comprising: determining one or more of the end of the first active duration or the end of the second active duration based at least in part on scheduling information, and adjusting the end of the second active duration to occur after the end of the first active duration based at least in part on determining that a portion of the first active duration overlaps with a portion of the second active duration.

[0206] Aspect 13: A method as in any of Aspects 1 to 12, further comprising: allocating a first antenna set associated with the device based at least in part on a configuration to monitor a channel during one or more of a first active duration or a first inactive duration to search for wireless communications associated with a first RAT; and allocating a second antenna set associated with the device based at least in part on the configuration to monitor a channel during one or more of a second active duration or a second inactive duration to search for wireless communications associated with a second RAT.

[0207] Aspect 14: The method of aspect 13, wherein the first antenna set and the second antenna set do not overlap.

[0208] Aspect 15: The method of any one of aspects 13 to 14, further comprising: reallocating one or more of the first antenna set or the second antenna set based at least in part on one or more of the first activity duration or the second activity duration.

[0209] Aspect 16: A method as in any one of Aspects 1 to 15, further comprising: managing one or more memory registers associated with the device for one or more of the first RAT and the second RAT, the one or more memory registers corresponding to a radio transceiver chain associated with the device, the one or more memory registers shared between the first RAT and the second RAT.

[0210] Aspect 17: The method of aspect 16, wherein managing the one or more memory registers comprises inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting states of the one or more memory registers, the first SIM corresponding to the first RAT and the second SIM corresponding to the second RAT.

[0211] Aspect 18: The method of any one of aspects 1 to 17, further comprising: inhibiting a first SIM associated with the device and a second SIM associated with the device from jointly adjusting an operating mode of a radio transceiver chain associated with the device.

[0212] Aspect 19: A method as in any one of Aspects 1 to 18, further comprising: adjusting an operating mode of a radio transceiver chain associated with the device based at least in part on a confirmation between a first SIM associated with the device and a second SIM associated with the device, the first SIM corresponding to a first RAT and the second SIM corresponding to a second RAT.

[0213] Aspect 20: The method of any one of aspects 1 to 19, further comprising: disabling baseband circuitry and RF front-end circuitry associated with the device when the device operates in the first power mode.

[0214] Aspect 21: A method as in any one of Aspects 1 to 20, further comprising: disabling a baseband circuit associated with the device based at least in part on the device operating in a second power mode; and enabling an RF front-end circuit associated with the device based at least in part on the device operating in the second power mode.

[0215] Aspect 22: The method of any one of Aspects 1 to 21, wherein the first activity duration comprises a 4G wake-up duration, and the second activity duration comprises a 5G discontinuous reception duration.

[0216] Aspect 23: The method of any one of Aspects 1 to 22, wherein the first RAT corresponds to a first SIM associated with the device and the second RAT corresponds to a second SIM associated with the device.

[0217] Aspect 24: The method of any one of aspects 1 to 23, wherein the apparatus comprises a multiple-input multiple-output radio transceiver chain capable of performing spatial multiplexing.

[0218] Aspect 25: The method of any one of Aspects 1 to 24, wherein one or more of the first RAT or the second RAT comprises a 4G RAT or a 5G RAT.

[0219] Aspect 26: An apparatus for performing wireless communications at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform a method as in any one of Aspects 1 to 25.

[0220] Aspect 27: An apparatus for wireless communication at a device, comprising at least one means for performing the method of any one of aspects 1 to 25.

[0221] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication at a device, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 25.

[0222] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0223] 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 may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0224] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0225] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, 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 the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0226] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0227] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer-readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then this coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of computer-readable medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, 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.

[0228] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, 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). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. 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."

[0229] The term "determine" or "determine" encompasses a wide variety of actions, and thus, "determine" may include calculating, computing, processing, deriving, investigating, searching (such as via searching in a table, database, or other data structure), ascertaining, and similar actions. Additionally, "determine" may include receiving (such as receiving information), accessing (such as accessing data in a memory), and similar actions. Additionally, "determine" may include resolving, selecting, choosing, establishing, and other such similar actions.

[0230] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0231] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0232] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the universal principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment UE, comprising: receiving control signaling including a configuration indicating one or more of a first active duration or a first inactive duration associated with a first radio access technology, or a second active duration or a second inactive duration associated with a second radio access technology; and A radio transceiver chain associated with one or more of the first radio access technology or the second radio access technology is operated in one or more of a first power mode or a second power mode based at least in part on the configuration.

2. The method of claim 1, wherein receiving the control signaling comprises: A radio resource control (RRC) message is received indicating one or more of the first activity duration or the first inactivity duration associated with the first radio access technology, or the second activity duration or the second inactivity duration associated with the second radio access technology.

3. The method of claim 1 , wherein receiving the control signaling comprises: Receive downlink control information DCI or media access control-control element MAC-CE indicating one or more of the first active duration or the first inactive duration associated with the first radio access technology, or the second active duration or the second inactive duration associated with the second radio access technology.

4. The method of claim 1, wherein The first radio access technology comprises Long Term Evolution (LTE), and The second radio access technology comprises New Radio NR.

5. The method of claim 1, wherein The first activity duration includes an LTE wake-up duration, and The second active duration includes a discontinuous reception DRX duration.

6. The method of claim 1, further comprising: determining that there is an overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology, Wherein operating the radio transceiver chain is based at least in part on the presence of the overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology.

7. The method of claim 6, wherein determining that there is the overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology comprises: Determining that a first portion of the first activity duration overlaps a second portion of the second activity duration, the method further comprising: The second active duration is adjusted based at least in part on the first portion of the first active duration overlapping the second portion of the second active duration.

8. The method of claim 7, wherein determining that the first portion of the first activity duration overlaps with the second portion of the second activity duration comprises: Determining one or more of a start of the first activity duration or a start of the second activity duration, wherein adjusting the second activity duration comprises: The start of the second activity duration is adjusted to occur before the start of the first activity duration.

9. The method of claim 7, wherein determining that the first portion of the first active duration overlaps with the second portion of the second active duration comprises: Determining one or more of an end of the first activity duration or an end of the second activity duration, wherein adjusting the second activity duration comprises: The end of the second activity duration is adjusted to occur after the end of the first activity duration.

10. The method of claim 7, further comprising: The second inactive duration associated with the second radio access technology is adjusted based at least in part on the presence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.

11. The method of claim 1, further comprising: determining that there is no overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology, Wherein operating the radio transceiver chain is based at least in part on an absence of the overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology.

12. The method of claim 11, further comprising: Resisting adjusting the second inactive duration associated with the second radio access technology based at least in part on an absence of the overlap between the first active duration associated with the first radio access technology and the second active duration associated with the second radio access technology.

13. The method of claim 1, further comprising: Jointly adjusting a mode of the radio transceiver chain associated with the UE via a first subscriber identity module SIM associated with the first radio access technology and a second SIM associated with the second radio access technology is suppressed.

14. A user equipment UE, comprising: one or more memories storing processor-executable code; as well as One or more processors, the one or more processors being coupled to the one or more memories and being individually or collectively operable to execute the code so that the UE: receiving control signaling including a configuration indicating one or more of a first active duration or a first inactive duration associated with a first radio access technology, or a second active duration or a second inactive duration associated with a second radio access technology; and A radio transceiver chain associated with one or more of the first radio access technology or the second radio access technology is operated in one or more of a first power mode or a second power mode based at least in part on the configuration.

15. The UE according to claim 14, wherein: In order to receive the control signaling, the one or more processors can individually or collectively operate to execute the code to cause the UE to: A radio resource control (RRC) message is received indicating one or more of the first activity duration or the first inactivity duration associated with the first radio access technology, or the second activity duration or the second inactivity duration associated with the second radio access technology.

16. The UE according to claim 14, wherein: In order to receive the control signaling, the one or more processors can individually or collectively operate to execute the code to cause the UE to: Receive downlink control information DCI or media access control-control element MAC-CE indicating one or more of the first active duration or the first inactive duration associated with the first radio access technology, or the second active duration or the second inactive duration associated with the second radio access technology.

17. The UE of claim 14, wherein: The first radio access technology comprises Long Term Evolution (LTE), and The second radio access technology comprises New Radio NR.

18. The UE of claim 14, wherein: The first activity duration includes an LTE wake-up duration, and The second active duration includes a discontinuous reception DRX duration.

19. The UE of claim 14, wherein the one or more processors are further operable, individually or collectively, to execute the code to cause the UE to: determining that there is an overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology, Wherein operating the radio transceiver chain is based at least in part on the presence of the overlap between the first activity duration associated with the first radio access technology and the second activity duration associated with the second radio access technology.

20. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable by one or more processors to: receiving control signaling including a configuration indicating one or more of a first active duration or a first inactive duration associated with a first radio access technology, or a second active duration or a second inactive duration associated with a second radio access technology; and A radio transceiver chain associated with one or more of the first radio access technology or the second radio access technology is operated in one or more of a first power mode or a second power mode based at least in part on the configuration.

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