WO2022147636A1

WO2022147636A1 - Resource activation and deactivation for different duplexing modes

Info

Publication number: WO2022147636A1
Application number: PCT/CN2021/070221
Authority: WO
Inventors: Abdelrahman Mohamed Ahmed Mohamed IBRAHIM; Linhai He; Ruiming Zheng; Muhammad Sayed Khairy Abdelghaffar; Ahmed Attia ABOTABL; Wanshi Chen; Seyedkianoush HOSSEINI; Gavin Bernard Horn; Hwan Joon Kwon; Krishna Kiran Mukkavilli
Original assignee: Qualcomm Incorporated
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2022-07-14

Abstract

Methods, systems, and devices for wireless communications are described. For example, signaling to enable switching between duplexing modes of a user equipment (UE) is described. A base station may indicate one or more configurations for a first duplexing mode of the UE, or for a second duplexing mode of the UE, or both. The base station 105 may then indicate for the UE to switch duplexing modes from the first duplexing mode to the second duplexing mode based on transmitting one or more configurations corresponding to the second duplexing mode, an activation of the second duplexing mode, an activation of frequency resources corresponding to the second duplexing mode, dedicated signaling to switch to the second duplexing mode, or a combination thereof. Upon switching duplexing modes, the UE 115 may deactivate, deconfigure, or suspend a configuration for the first duplexing mode, for example, based on a type of the configuration.

Description

RESOURCE ACTIVATION AND DEACTIVATION FOR DIFFERENT DUPLEXING MODES

FIELD OF TECHNOLOGY

The following relates to wireless communications, including resource activation and deactivation for different duplexing modes.

BACKGROUND

Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) . Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA) , time division multiple access (TDMA) , frequency division multiple access (FDMA) , orthogonal frequency division multiple access (OFDMA) , or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM) . A wireless multiple-access communications system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE) .

SUMMARY

The described techniques relate to improved methods, systems, devices, and apparatuses that support resource activation and deactivation for different duplexing modes. Generally, the described techniques allow for a base station and a user equipment (UE) to communicate over a channel with the UE using or switching between different duplexing modes (e.g., a first duplexing mode and a second duplexing mode, such as a full-duplex (FD) mode and a half-duplex (HD) mode) . For example, the UE may transmit an indication of a duplexing capability of the UE to the base station (e.g., indicating whether the UE supports one or both of a first mode or a second mode such as an FD mode or an HD mode, whether the UE supports switching between the first mode and the second mode such as switching between the FD mode and the HD mode) . The UE may receive one or more configurations (e.g., semi-persistent scheduling (SPS) configurations, configured grant (CG) configurations) for duplexing modes of the UE, for example from the base station, based on transmitting the indication of the duplexing capability. For example, the UE may receive a first configuration for a first duplexing mode, a second configuration for a second duplexing mode, or both, where each of the configurations may include resources (e.g., bandwidth parts (BWPs) , sub-BWPs) to be used when operating according to one of the corresponding duplexing modes along with other parameters to support communications for the corresponding duplexing modes. In some implementations, the UE may receive both configurations at once (e.g., simultaneously, concurrently such as at least partially overlapping) , or the UE may receive a single configuration for one of the duplexing modes and then receive an additional configuration for the other duplexing modes at another time. Then, the UE may communicate with the base station using the one or more configurations.

In some implementations, the UE may switch duplexing modes from a first duplexing mode (e.g., an HD mode or an FD mode) to a second duplexing mode (e.g., the other of the HD mode or the FD mode not associated with the first duplexing mode) based on receiving a switching indication from the base station. For example, the switching indication from the base station to indicate for the UE to switch duplexing modes may include an indication of a second configuration for the second duplexing mode, an activation message for the second duplexing mode, an activation of a BWP or a sub-BWP configured for the second duplexing mode, a slot configuration corresponding to the second duplexing mode, or a combination thereof. Additionally, when switching duplexing modes, the UE may deactivate, suspend, or deconfigure a first configuration (e.g., current configuration or a configuration in use prior to the switching) for the first duplexing mode, where the action the UE performs for the first configuration (e.g., deactivating, suspending, or deconfiguring) may be based on a type of the first configuration (e.g., SPS configuration, a type-1 CG configuration, a type-2 CG configuration) .

A method for wireless communications at a UE is described. The method may include transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication, and communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

An apparatus for wireless communications at a UE is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to transmit, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, receive, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication, and communicate with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

Another apparatus for wireless communications at a UE is described. The apparatus may include means for transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, means for receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication, and means for communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

A non-transitory computer-readable medium storing code for wireless communications at a UE is described. The code may include instructions executable by a processor to transmit, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, receive, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication, and communicate with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, communicating with the base station may include operations, features, means, or instructions for communicating with the base station using the first duplexing mode, the method further including, receiving, from the base station, an indication for the UE to switch to the second duplexing mode, and communicating with the base station using the second duplexing mode based on receiving the indication.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the indication for the UE to switch to the second duplexing mode includes the second configuration, a downlink control information message indicating to activate the second duplexing mode, an activation message for a BWP configured for the second duplexing mode, an activation message for a sub-BWP configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first configuration and the second configuration may be defined per sub-BWP and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for receiving, from the base station, an indication of a sub-BWP for the UE to use for subsequent communications, where the sub-BWP may be configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the base station using one of the first duplexing mode or the second duplexing mode may be based on receiving the indication of the sub-BWP.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the sub-BWP may be configured for the second duplexing mode and the first configuration includes a SPS configuration or a type two CG and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for deactivating the first configuration for the first duplexing mode based on receiving the indication of the sub-BWP that may be configured for the second duplexing mode and the first configuration including the SPS configuration or the type two CG.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the sub-BWP may be configured for the second duplexing mode and the first configuration includes a type one CG and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for suspending the first configuration for the first duplexing mode based on receiving the indication of the sub-BWP that may be configured for the second duplexing mode and the first configuration including the type one CG.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first configuration and the second configuration may be defined per BWP and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for receiving, from the base station, an indication of a BWP for the UE to use for subsequent communications, where the BWP may be configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the base station using one of the first duplexing mode or the second duplexing mode may be based on receiving the indication of the BWP.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the BWP may be configured for the second duplexing mode and the first configuration includes a SPS configuration or a type two CG and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for deconfiguring the first configuration for the first duplexing mode based on receiving the indication of the BWP that may be configured for the second duplexing mode and the first configuration including the SPS configuration or the type two CG.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the BWP may be configured for the second duplexing mode and the first configuration includes a type one CG and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for suspending the first configuration for the first duplexing mode based on receiving the indication of the BWP that may be configured for the second duplexing mode and the first configuration including the type one CG.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the base station, dedicated signaling indicating for the UE to switch duplexing modes and switching duplexing modes based on receiving the dedicated signaling.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for deactivating or suspending the first configuration or the second configuration based on receiving the dedicated signaling.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the dedicated signaling includes a slot format configuration, a slot format indicator in a downlink control information message, a common time division duplexing configuration for communications, a dedicated time division duplexing configuration for communications, layer one signaling, layer two signaling, or any combination thereof.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the base station, an indication for the UE to switch duplexing modes from the first duplexing mode to the second duplexing mode and refraining from adjusting one or more hybrid automatic repeat request (HARQ) operations initiated for the first duplexing mode when switching to the second duplexing mode.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving, from the base station, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, where the first retransmission timer and the second retransmission timer may be independent of the UE switching between duplexing modes.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving one or both of the first configuration or the second configuration may include operations, features, means, or instructions for receiving, from the base station, one or both of a first set of multiple configurations for communicating using the first duplexing mode or a second set of multiple configurations for communicating using the second duplexing mode, where the first set of multiple configurations and the second set of multiple configurations may be defined for a set of multiple component carriers (CCs) configured for the UE, the method further including and receiving, from the base station, a joint activation message for one or more of the first set of multiple configurations or one or more of the second set of multiple configurations, where communicating with the base station using one of the first duplexing mode or the second duplexing mode may be based on receiving the joint activation message.

A method for wireless communications at a base station is described. The method may include receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication, and communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

An apparatus for wireless communications at a base station is described. The apparatus may include a processor, memory in electronic communication with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, transmit, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication, and communicate with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

Another apparatus for wireless communications at a base station is described. The apparatus may include means for receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, means for transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication, and means for communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

A non-transitory computer-readable medium storing code for wireless communications at a base station is described. The code may include instructions executable by a processor to receive, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode, transmit, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication, and communicate with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, communicating with the UE may include operations, features, means, or instructions for communicating with the UE based on the UE using the first duplexing mode, the method further including, transmitting, to the UE, an indication for the UE to switch to the second duplexing mode, and communicating with the UE based on the UE using the second duplexing mode based on transmitting the indication.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the indication for the UE to switch to the second duplexing mode includes the second configuration, a downlink control information message indicating for the UE to activate the second duplexing mode, an activation message for a BWP configured for the second duplexing mode, an activation message for a sub-BWP configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first configuration and the second configuration may be defined per sub-BWP and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for transmitting, to the UE, an indication of a sub-BWP for the UE to use for subsequent communications, where the sub-BWP may be configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode may be based on transmitting the indication of the sub-BWP.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first configuration and the second configuration may be defined per BWP and the method, apparatuses, and non-transitory computer-readable medium may include further operations, features, means, or instructions for transmitting, to the UE, an indication of a BWP for the UE to use for subsequent communications, where the BWP may be configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode may be based on transmitting the indication of the BWP.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to the UE, a slot format configuration, dedicated signaling indicating for the UE to switch duplexing modes.

Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting, to the UE, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, where the first retransmission timer and the second retransmission timer may be independent of the UE switching between duplexing modes.

In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting one or both of the first configuration or the second configuration may include operations, features, means, or instructions for transmitting, to the UE, one or both of a first set of multiple configurations for communicating using the first duplexing mode or a second set of multiple configurations for communicating using the second duplexing mode, where the first set of multiple configurations and the second set of multiple configurations may be defined for a set of multiple CCs configured for the UE, the method further including and transmitting, to the UE, a joint activation message for one or more of the first set of multiple configurations or one or more of the second set of multiple configurations, where communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode may be based on transmitting the joint activation message.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an example of a wireless communications system that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 2 illustrates an example of a wireless communications system that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 3 illustrates an example of a resource configuration that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 4 illustrates an example of a process flow that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIGs. 5 and 6 show block diagrams of devices that support resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 7 shows a block diagram of a communications manager that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 8 shows a diagram of a system including a device that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIGs. 9 and 10 show block diagrams of devices that support resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 11 shows a block diagram of a communications manager that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIG. 12 shows a diagram of a system including a device that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

FIGs. 13 through 18 show flowcharts illustrating methods that support resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure.

DETAILED DESCRIPTION

In some wireless communications systems, a UE may communicate (e.g., receive messages, transmit messages) with a base station according to a duplexing operating mode. For example, the UE may operate using a half-duplex (HD) mode that supports one-way communications with the base station, such as either receiving signaling or transmitting signaling at a given time (e.g., the HD mode does not support transmission and reception occurring at the same time at the UE) . Additionally or alternatively, the UE may operate using a full-duplex (FD) that supports two-way communications with the base station, such as both transmitting and receiving signaling at the same time (e.g., at least partially overlapping such as concurrently, simultaneously) . Techniques are desired for supporting different duplexing operating modes. In some implementations, the UE may be able to switch between the HD mode and the FD mode (e.g., dynamically and/or semi-statically) . Techniques are desired for enabling this switching between duplexing modes.

As described herein, a base station may indicate different configurations (e.g., semi-persistent scheduling (SPS) configurations for downlink communications, configured grants (CGs) for uplink communications) for a FD mode of a UE, or for a HD mode of the UE, or both. For example, the base station may configure the UE with a first CG for uplink communications in the HD mode and a second CG for uplink communications in the FD mode (e.g., the base station configures the UE with configurations/CGs/SPSs that may be specific for each duplexing mode) . Then, if the base station indicates for the UE to switch duplexing modes, the UE may deactivate, deconfigure, or suspend a current configuration for a current duplexing mode based on switching duplexing modes. In some implementations, the configurations for each duplexing mode may be defined per sub-bandwidth part (BWP) (e.g., a BWP may be split into smaller increments referred to as sub-BWPs of the BWP) , where the base station can indicate which duplexing mode the UE is to use by indicating a sub-BWP for the UE to use. Upon switching duplexing modes, the UE may deactivate or suspend the current configuration for the current duplexing mode based on the type of configuration (e.g., SPS, type-1 CG, type-2 CG) .

In some implementations, the configurations for each duplexing mode may be defined per BWP, where the base station can indicate which duplexing mode the UE is to use by indicating a BWP for the UE to use, and the UE may deactivate, deconfigure, or suspend the current configuration for the current duplexing mode based on the type of configuration. In some implementations, the base station may indicate for the UE to switch duplexing modes based on transmitting a slot format configuration. Additionally, hybrid automatic repeat request (HARQ) timers and processes may continue to run when switching duplexing modes, or the base station may configure different retransmission timers for each duplexing mode. In some implementations, the base station may activate and deactivate multiple configurations (e.g., across component carriers (CCs) ) for a duplexing mode using a single message (e.g., a downlink control information (DCI) message) .

Aspects of the disclosure are initially described in the context of wireless communications systems. Additionally, aspects of the disclosure are illustrated through an additional wireless communications system, a resource configuration, and a process flow. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to resource activation and deactivation for different duplexing modes.

FIG. 1 illustrates an example of a wireless communications system 100 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The wireless communications 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 communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communications 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.

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

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

The base stations 105 may communicate with the core network 130, or with one another, or both. For example, the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface) . The base stations 105 may communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105) , or indirectly (e.g., via core network 130) , or both. In some examples, the backhaul links 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 having ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB) , a Home NodeB, a Home eNodeB, or other suitable terminology.

A 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 terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A 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, a 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 communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, or vehicles, meters, among other examples.

The UEs 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 the base stations 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.

The UEs 115 and the base stations 105 may wirelessly communicate with one another via one or more communication links 125 over one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication links 125. For example, a carrier used for a communication link 125 may include a portion of a radio frequency spectrum band (e.g., a BWP) that is operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR) . Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.

In some examples (e.g., in a carrier aggregation configuration) , a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers. A carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN) ) and may be positioned according to a channel raster for discovery by the UEs 115. A carrier may be operated in a standalone mode where initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode where a connection is anchored using a different carrier (e.g., of the same or a different radio access technology) .

The communication links 125 shown in the wireless communications system 100 may include uplink transmissions from a UE 115 to a base station 105, or downlink transmissions from a base station 105 to a UE 115. Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .

A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100. For example, the carrier bandwidth may be one of a number of determined bandwidths for carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) . Devices of the wireless communications system 100 (e.g., the base stations 105, the UEs 115, or both) may have hardware configurations that support communications over a particular carrier bandwidth or may be configurable to support communications over one of a set of carrier bandwidths. In some examples, the wireless communications system 100 may include base stations 105 or UEs 115 that support concurrent (e.g., at least partially overlapping) or simultaneous communications via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured for operating over portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.

Signal waveforms transmitted over a carrier may be made up of 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 employing MCM techniques, a resource element may consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and 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 coding rate of the modulation scheme, or both) . Thus, the more resource elements that a UE 115 receives and the higher the order of the modulation scheme, the higher the data rate may be for the UE 115. A wireless communications resource may refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers or beams) , and the use of multiple spatial layers may further increase the data rate or data integrity for communications with a UE 115.

One or more numerologies for a carrier may be supported, where a numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. 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 the UE 115 may be restricted to one or more active BWPs.

The time intervals for the base stations 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of T _s= 1/ (Δf _max·N _f) seconds, where Δf _max may represent the maximum supported subcarrier spacing, and N _f may represent the maximum supported discrete Fourier transform (DFT) size. Time intervals of a communications resource 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) .

Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on subcarrier spacing. Each slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) . In some wireless communications systems 100, a slot may further be divided into multiple mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N _f) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.

A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications 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 communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .

Physical channels may be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. 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 the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple 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 a number of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets for sending control information to a specific UE 115.

Each base station 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with a base station 105 (e.g., over a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) , or others) . 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) over which the logical communication entity operates. Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas 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 exterior spaces between or overlapping with geographic coverage areas 110, among other examples.

A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell. A small cell may be associated with a lower-powered base station 105, as compared with a macro cell, and a small cell may operate in the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) . A base station 105 may support one or multiple cells and may also support communications over the one or more cells using one or multiple 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 for different types of devices.

In some examples, a base station 105 may be movable and therefore provide communication coverage for a moving geographic coverage area 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, the overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

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

Some UEs 115, such as MTC or IoT devices, may be low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) . M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or 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 program that makes use of the information or presents the information to humans interacting with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.

Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as HD communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception simultaneously) . In some examples, HD communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 include entering a power saving deep sleep mode when not engaging in active communications, operating over a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.

The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission critical communications. The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission critical functions) . Ultra-reliable communications 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, mission critical, and ultra-reliable low-latency may be used interchangeably herein.

In some examples, a UE 115 may also be able to communicate directly with other UEs 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 communications may be within the 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 a base station 105 or be otherwise unable to receive transmissions from a base station 105. In some examples, groups of the UEs 115 communicating via D2D communications may utilize a one-to-many (1: M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, a base station 105 facilitates the scheduling of resources for D2D communications. In other cases, D2D communications are carried out between the UEs 115 without the involvement of a base station 105.

In some systems, the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) . In some examples, vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these. A vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., base stations 105) using vehicle-to-network (V2N) communications, or with both.

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 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) . The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the base stations 105 associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.

Some of the network devices, such as a base station 105, may include subcomponents such as an access network entity 140, which may be an example of an access node controller (ANC) . Each access network entity 140 may communicate with the UEs 115 through one or more other access network transmission entities 145, which may be referred to as radio heads, smart radio heads, or transmission/reception points (TRPs) . Each access network transmission entity 145 may include one or more antenna panels. In some configurations, 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 consolidated into a single network device (e.g., a base station 105) .

The wireless communications system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) . Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. The UHF waves may be blocked or redirected by buildings and environmental features, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. The transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to transmission using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

The wireless communications system 100 may also operate in a super high frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as the centimeter band, or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band. In some examples, the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the base stations 105, and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate use of antenna arrays within a device. The propagation of EHF transmissions, however, may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.

The wireless communications system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in unlicensed radio frequency spectrum bands, devices such as the base stations 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA) . Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

A base station 105 or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may 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, antennas or antenna arrays associated with a base station 105 may be located in diverse geographic locations. A base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, an antenna panel may support radio frequency beamforming for a signal transmitted via an antenna port.

The base stations 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase the spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) . Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) , where multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , where multiple spatial layers are transmitted to multiple devices.

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 the signals communicated via antenna elements of an antenna array such that some signals propagating at particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .

The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. A Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels. A Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or a core network 130 supporting radio bearers for user plane data. At the physical layer, transport channels may be mapped to physical channels.

The UEs 115 and the base stations 105 may support retransmissions of data to increase the likelihood that data is received successfully. HARQ feedback is one technique for increasing the likelihood that data is received correctly over a 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 throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions) . In some examples, a device may support same-slot HARQ feedback, where the device may provide HARQ feedback in a specific slot for data received in a previous symbol in the slot. In other cases, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.

As described herein, a UE 115 may operate in one or more duplexing modes to communicate with a base station 105. For example, the UE 115 may operate in an FD mode that supports concurrent (e.g., at least partially overlapping) or simultaneous reception and transmission at a given time or may operate in an HD mode that supports one-way communication via transmission or reception, but not transmission and reception concurrently or simultaneously. A UE 115 operating in the FD mode may utilize an in-band full duplex (IBFD) configuration. When using the IBFD configuration, the UE 115 may transmit and receive on the same time and frequency resources. For example, the UE 15 may use a frequency band for downlink communications that fully overlaps a frequency band used for uplink communications, or the UE 115 may use the frequency band for the downlink communications which partially overlaps the frequency band used for the uplink communications.

Additionally or alternatively, the UE 115 operating in the FD mode may utilize a sub-band FDD for full duplex (SBFD) configuration (e.g., flexible duplex) . When using the SBFD configuration, the UE 115 may transmit and receive on the same time resources, but may use separate frequency bands for transmitting and receiving. In some cases, a frequency band used for downlink communications may be separated from a frequency band used for uplink communications using a guard band. The guard band may prevent (e.g., or lessen) interference between uplink and downlink transmissions.

In some cases, the UE 115 may operate according to a D+U slot format (e.g., a slot format that supports both downlink (D) and uplink (U) communications) . The D+U slot format may include frequency bands which are used for both uplink and downlink transmissions. The downlink and uplink transmissions may occur in overlapping bands (e.g., in an IBFD configuration) or in adjacent bands (e.g., in an SBFD configuration) . If the UE 115 is operating in an HD mode, the UE 115 may, in a symbol of the D+U slot, either transmit signals using frequency resources allocated for the uplink transmissions (e.g., uplink band, uplink frequency band) or receive signals using frequency resources allocated for the downlink transmissions (e.g., downlink band, downlink frequency band) , but not both. Conversely, if the UE 115 is operating in an FD mode, the UE 115 may, in a symbol of the D+U slot, both transmit signals in the uplink band and receive signals in the downlink band. A D+U band may include symbols allocated for downlink transmissions alone (e.g., downlink symbols, ‘D’ symbols) , symbols allocated for uplink transmissions alone (e.g., uplink symbols, ‘U’ symbols. ) , and symbols allocated for both downlink and uplink transmissions (e.g., full duplex symbols) .

A UE 115 and a base station 105 may schedule downlink transmissions, for example, using dynamic scheduling or semi-persistent scheduling (SPS) . When using dynamic scheduling, at least some if not every shared downlink message (e.g., a physical downlink shared channel (PDSCH) ) sent by the base station 105 may be scheduled by downlink control information (DCI) (e.g., such as a DCI 1_0 format, a DCI 1_1 format) . For example, the base station 105 may send a DCI indicating the frequency and time resources to be monitored for a corresponding, subsequent PDSCH. When using SPS, the base station 105 may configure the SPS mode by sending an RRC message indicating a set of time and frequency resources to monitor for corresponding, subsequent PDSCH messages, as well as a periodicity of the PDSCH messages (e.g., for the semi-persistent aspect of the SPS) . The SPS mode may then be activated and deactivated using a DCI message.

Additionally or alternatively, for uplink transmissions, a UE 115 and a base station 105 may schedule uplink transmissions using dynamic uplink scheduling or CG scheduling. When using dynamic uplink scheduling, at least some if not every shared uplink message (e.g., a physical uplink shared channel (PUSCH) ) may be scheduled by a DCI (e.g., in an analogous way to dynamic scheduling for downlink transmissions) . When using CG scheduling, the UE 115 may operate according to a type-1 CG (e.g., CG-type1) or a type-2 CG (e.g., CG-type2) . With the type-1 CG, the base station 105 may configure the UE 115 with time and frequency resources and a periodicity for PUSCH transmissions using RRC signaling, where the UE 115 subsequently uses the time and frequency resources and periodicity to transmit PUSCHs (e.g., or other uplink channels) without additional signaling from the base station 105. With the type-2 CG, the UE 115 may still be configured with time and frequency resources and a periodicity for PUSCH transmissions using the RRC signaling, but the UE 115 may begin PUSCH transmissions upon receiving a DCI trigger (e.g., with a corresponding radio network temporary identifier (RNTI) for the type-2 CG, such as a configured scheduling RNTI (CS-RNTI) corresponding to the type-2 CG) from the base station 105. In both CG type 1 and CG type 2, the PUSCH transmissions may be terminated via a DCI trigger (e.g., with a corresponding RNTI for the base station 105, such as a cell RNTI (C-RNTI) corresponding to the base station 105) sent by the base station 105.

In some embodiments, the frequency bands used for uplink and downlink transmissions may include a BWP. For example, a BWP may span a portion (e.g., a subset) of a total available frequency band. In some cases, a BWP may be dedicated to uplink transmissions or downlink transmissions but not both. Additionally or alternatively, a BWP may be active if the BWP is currently used for transmissions, and a UE 115 may have a single active BWP at a given time. A first active BWP may be considered a default BWP. If a given BWP is not currently being used, that BWP may be considered inactive for the UE 115. In some cases, a same set of dedicated, default, inactive, and first active BWPs for downlink and uplink may be used in both FD and HD modes. In some implementations, a BWP may be further divided into a set of sub-BWPs (e.g., smaller portions of the frequency band within a BWP) . When operating in the FD mode, a UE 115 may be configured with a set of downlink and uplink sub-BWPs within respective downlink and uplink BWPs. As with a BWP, a sub-BWP may be dedicated, default, inactive, or first active, and configurations defined per BWP may be similarly defined on sub-BWPs (e.g., different downlink channels and uplink channels may be switched when sub-BWPs are switched) .

In some examples, a base station 105 may indicate to a UE 115 to switch the active BWP for a serving cell. Indicating a BWP switch may include sending an indication to deactivate a first active BWP, as well as sending an indication to activate an inactive BWP. When a BWP is inactive, any configurations for that inactive BWP may be suspended or not configured. If a BWP is activated and the current active downlink BWP for the serving cell is not inactive, then any suspended type-1 CGs on the newly active BWP may be reinitialized according to a stored configuration. Further, if a BWP is deactivated, then the UE 115 may clear any configured downlink assignment and configured uplink grant for type-2 CGs on the deactivated BWP (e.g., the UE 115 may deconfigure uplink grants or type-2 CGs previously used on that BWP prior to the BWP being deactivated) . Based on deconfiguring the associated configurations for the deactivated BWP, if that BWP is again activated, the base station 105 may transmit an indication of a configuration for the UE 115 to use when communicating on that BWP. Additionally or alternatively, any type-1 CGs for a previously active BWP may be suspended when switching to a different BWP (e.g., suspended configurations may be stored in memory of the UE 115 such that the suspended configurations can be reinitialized if the previously active BWP is again activated without additional signaling from the base station 105 to indicate a corresponding configuration) .

Additionally, in some implementations, a UE 115 may support a capability to dynamically switch between duplexing modes. For example, the UE 115 may operate in the FD mode initially and may support switching to the HD mode (e.g., to save power) . Additionally or alternatively, the UE 115 may operate in the HD mode initially and may support switching to the FD mode (e.g., for more efficient communications) . However, signaling for switching between the duplexing modes may not be defined or other different types of signaling may be insufficient. For example, the configuration and deconfiguration of CGs and SPS configurations may be too slow to allow for dynamic switching of BWPs and duplexing modes.

Wireless communications system 100 may support signaling to enable switching between duplexing modes. For example, a base station 105 may indicate different configurations (e.g., SPS configurations for downlink communications, CGs for uplink communications) for a FD mode of a UE 115, or for a HD mode of the UE 115, or both. As an example, the base station 105 may configure the UE 115 with a first CG for uplink communications in the HD mode and a second CG for uplink communications in the FD mode (e.g., the base station 105 configures the UE 115 with configurations, CGs, and/or SPSs that may be specific for each duplexing mode) . Then, if the base station indicates for the UE to switch duplexing modes, the UE may deactivate, deconfigure, or suspend a current configuration for a current duplexing mode based on switching duplexing modes. For example, the base station 105 may indicate for the UE to switch duplexing modes from a first duplexing mode to a second duplexing mode based on transmitting a configuration corresponding to the second duplexing mode, an activation of the second duplexing mode (e.g., via DCI) , an activation of a BWP or a sub-BWP corresponding to the second duplexing mode, a slot format indication corresponding to the second duplexing mode, or a combination thereof. Upon switching duplexing modes to the second duplexing mode, the UE 115 may deactivate, deconfigure, or suspend a configuration for the first duplexing mode based on the type of the configuration (e.g., SPS, type-1 CG, type-2 CG) .

FIG. 2 illustrates an example of a wireless communications system 200 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. In some examples, wireless communications system 200 may be implemented by or may implement aspects of the wireless communications system 100. For example, wireless communications system 200 includes a UE 115-a and a base station 105-a, which may be examples of corresponding devices described with reference to FIG. 1.

The UE 115-a and base station 105-a may communicate on resources of a carrier 205. In some examples, the UE 115-a may transmit a capability indication 210 to the base station 105-a on the resources of the carrier 205. The capability indication 210 may include an indication of features that the UE 115-a supports. For example, the capability indication 210 may indicate that the UE 115-a supports a capability to operate in an FD mode, an HD mode, or both; supports duplexing mode specific SPSs, CGs, or both; supports a per BWP configuration of SPSs, CGs, or both; supports a per sub-BWP configuration of SPSs, CGs, or both; supports a capability for switching between duplexing modes (e.g., based on a slot format indication, BWP switching, sub-BWP switching, or other signaling) ; different retransmission timers for different duplexing modes; or a combination thereof.

Additionally, the base station 105-a may transmit one or more configurations 215 to the UE 115-a on the resources of the carrier 205 based on the UE 115-a transmitting the capability indication 210. In some examples, each of the one or more configurations 215 may correspond to a configuration for a corresponding duplexing mode (e.g., a configuration for communications when operating in the FD mode, a configuration for communications when operating in the HD mode, or respective configurations for each duplexing mode) . For example, each of the one or more configurations 215 may include a CG for uplink communications, an SPS for downlink communications, or both, for example, to be used when operating in a specific duplexing mode. That is, a first configuration may include a first allocation of resources for downlink communications (e.g., a first SPS) and a first allocation of resources for uplink communications (e.g., a first CG, such as a type-1 CG or a type-2 CG) to be used by the UE 115-a when operating in the FD mode, and a second configuration may include a second allocation of resources for downlink communications (e.g., a second SPS) and a second allocation of resources for uplink communications (e.g., a second CG) to be used by the UE 115-a when operating in the HD mode. In some examples, the base station 105-a may transmit respective configurations for each duplexing mode when transmitting the one or more configurations 215, or the base station 105-a may transmit a single configuration for one of the duplexing modes supported by the UE 115-a (e.g., for the UE 115-a to operate according to that corresponding duplexing mode) .

As described above, the UE 115-a may support the capability to switch between duplexing modes (e.g., included in the capability indication 210) . Based on this capability to switch between duplexing modes, the base station 105-a may indicate (e.g., dynamically or semi-statically) which duplexing mode the UE 115-a is to switch to or is to use for subsequent communications. In some implementations, to support a dynamic switching between duplexing modes for the UE 115-a, the base station 105-a may define the one or more configurations 215 (e.g., SPSs for downlink communications, CGs for uplink communications) per sub-BWP (e.g., a BWP is split into multiple fractions referred to as sub-BWPs) . Additionally or alternatively, to support a semi-static switching between duplexing modes for the UE 115-a, the base station 105-a may define the one or more configurations 215 per BWP.

After transmitting the one or more configurations 215, the base station 105-a and the UE 115-a may initiate one or more communications 220 on the resources of the carrier 205 according to the one or more configurations 215. In some implementations, the communications 220 may occur over a set of time and frequency resources. For example, the communications 220 may occur on a single active BWP 225 at a given time, where the BWP 225 includes the frequency resources for the communications 220 and a constraint on the UE 115-a to have a single active BWP 225 at any given time may correspond to the time resources for the communications 220 (e.g., the BWP 225 is active for a time duration activated or signaled by the base station 105-a) . Additionally, the base station 105-a may define multiple BWPs 225 to be potentially used by the UE 115-a (e.g., activated and deactivated individually by the base station 105-a) . For example, the base station 105-a may define a first BWP 225-a and a second BWP 225-b. In some implementations, each BWP 225 may be defined for a different duplexing mode of the UE 115-a (e.g., for semi-static switching of duplexing modes as described previously) . For example, the UE 115-a may use the first BWP 225-a for a first duplexing mode (e.g., the HD mode or the FD mode) and may use the second BWP 225-b for a second duplexing mode (e.g., the other of the HD mode or the FD mode that is used for the first duplexing mode) . Additionally or alternatively, a same set of dedicated, default, inactive, and/or first active BWPs for downlink communications and uplink communications may be shared between the different duplexing modes (e.g., the FD mode and the HD mode) .

In some implementations, the BWPs 225 may be further divided into multiple sub-BWPs 230. For example, the second BWP 225-b may include a first sub-BWP 230-a, a second sub-BWP 230-b, a third sub-BWP 230-c, and a fourth sub-BWP 230-d. The different sub-BWPs 230 may span different portions of the second BWP 225-b, and one or more of the sub-BWPs 230 may be non-contiguous. For example, the third sub-BWP 230-c may be split into two portions within the second BWP 225-b. While not shown, the first BWP 225-a may also include one or more sub-BWPs, and while four (4) sub-BWPs 230 are shown in the example of FIG. 2, a different number of sub-BWPs 230 (e.g., more than four (4) sub-BWPs 230 or less than four (4) sub-BWPs 230) may be defined per BWP 225.

In some examples (e.g., when the UE 115-a is operating in the FD mode or in the HD mode) , the UE 115-a may be configured with a set of downlink sub-BWPs (e.g., sub-BWPs allocated for downlink communications) and a set of uplink sub-BWPs (e.g., sub-BWPs allocated for uplink communications) . As with BWPs 225, each of the sub-BWPs 230 may be dedicated, default, inactive, or first active sub-BWPs. In some examples, configurations that are defined per BWP may also be defined per sub-BWP. For example, when a sub-BWP is used in an FD mode, different downlink and uplink channels (e.g., physical downlink control channels (PDCCHs) , PDSCHs, physical uplink control channels (PUCCHs) , PUSCHs) may be switched when the sub-BWP is switched.

As described herein, the base station 105-a may intend to change the duplexing mode of the UE 115-a and may signal this change of duplexing modes by transmitting an indication 235 (e.g., on the resources of the carrier 205) . For example, the base station 105-amay transmit the indication 235 to the UE 115-a to switch the duplexing mode of the UE 115-a from a first duplexing mode to a second duplexing mode (e.g., from the FD mode to the HD mode or from the HD mode to the FD mode) . In some examples, the indication 235 for the UE 115-a to switch from the first duplexing mode to the second duplexing mode may include a configuration for the second duplexing mode, an activation of a BWP 225 or a sub-BWP 230 configured for the second duplexing mode, a slot format indication corresponding to the second duplexing mode, an activation of the second duplexing mode (e.g., via DCI) , or a combination thereof.

Subsequently, upon receiving the indication 235, the UE 115-a may deactivate, deconfigure, or suspend a configuration for the first duplexing mode (e.g., a current duplexing mode or the duplexing mode the UE 115-a is using prior to receiving the indication 235) based on a type of the configuration for the first duplexing mode. For example, if the configuration for the first duplexing mode includes an SPS and/or a type-2 CG, the UE 115-amay deactivate the SPS and the type-2 CG (e.g., keeping the SPS and type-2 CG in memory of the UE 115-a to be reactivated without reinitializing the SPS and type-2 CG) for the first duplexing mode (e.g., for a dynamic switching of duplexing modes) or may deconfigure the SPS and the type-2 CG (e.g., removing the SPS and type-2 CG from memory of the UE 115-a) for the first duplexing mode (e.g., for a semi-static switching of duplexing modes) . Additionally or alternatively, if the configuration for the first duplexing mode includes a type-1 CG, the UE 115-a may suspend the type-1 CG (e.g., keeping the type-1 CG in memory of the UE 115-a to be reactivated upon reinitializing the type-1 CG) for the first duplexing mode.

In some implementations, the base station 105-a may send signaling indicative of or an initiating to jointly activate or deactivate multiple configurations (e.g., CGs for uplink communications, SPSs for downlink communications) across a set of CCs configured for the UE 115-a for the communications 220 between the UE 115-a and the base station 105-a (e.g., or a set of cells for the communications 220 between the UE 115-a and the base station 105-a) . For example, the base station 105-a may define the one or more configurations 215 for different CCs configured for the UE 115-a (e.g., in addition for the different duplexing modes on each of the different CCs, such that each CC may include respective configurations for each duplexing mode) . Accordingly, the base station 105-a may send the 235 (e.g., a single activation/deactivation message) to activate or deactivate multiple configurations in a cell group (e.g., for multiple CCs or cells) . That is, the base station 105-a may transmit the indication 235 (e.g., in a DCI) to activate and/or deactivate one or more configurations of the one or more configurations 215 across multiple CCs. In some examples, the base station 105-a may transmit the 235 (e.g., a single DCI) to jointly activate or deactivate multiple CGs for uplink communications for multiple CCs or cells of a cell group configured for the UE 115-a. Additionally or alternatively, the base station 105-a may transmit the 235 (e.g., a single DCI) to jointly activate or deactivate multiple SPSs for downlink communications for multiple CCs or cells of a cell group configured for the UE 115-a. By send signaling indicative of jointly activating or deactivating multiple configurations (e.g., CGs and/or SPSs) for multiple CCs or cells of a cell group configured for the UE 115-a may reduce signaling overhead and may support flexible duplexing at the UE 115-a (e.g., switching between duplexing modes) .

In some examples (e.g., when using CGs for uplink communications) , the UE 115-a may be configured with a first timer and a second timer for use in timer based HARQ acknowledgment feedback. The first timer may be an example of a configured grant timer, where a corresponding HARQ process may run until a positive acknowledgment message (e.g., an ACK) is received in downlink feedback information (e.g., indicating a message is successfully transmitted, received, and decoded) or until the first timer runs out (e.g., the HARQ process may include transmitting and retransmitting a same message until the message is successfully communicated or until the first timer elapses) . The second timer may be an example of a configured grant retransmission timer (e.g., configured for unlicensed communications, such as in NR unlicensed (NRU) communications) , where autonomous CG retransmissions may be prohibited while the second timer is running. However, when the UE 115-a switches duplexing modes, the UE 115-a may not know how to handle these different timers since the base station 105-a may define the timers based at least on the current duplexing mode of the UE 115-a.

In some implementations, when the UE 115-a switches duplexing modes, it may be desirable to enable retransmissions on the switched-to duplexing mode from the prior duplexing mode. Accordingly, when the UE 115-a switches duplexing modes, ongoing HARQ processes from the prior duplexing mode (e.g., including any HARQ timers, such as the first timer and the second timer) may not be reset (e.g., the ongoing HARQ processes are maintained, HARQ timers continue running without change) . Additionally or alternatively, the base station 105-a may configure different retransmission timer values for the different duplexing modes (e.g., a first set of retransmission timers for a first duplexing mode and a second set of retransmission timers for a second duplexing mode) . When the duplexing mode is switched for the UE 115-a from the first duplexing mode to the second duplexing mode, the retransmission timers for the first duplexing mode may not be impacted (e.g., the retransmission timers for the first duplexing mode are maintained) . Additionally, if a retransmission timer restarts, the UE 115-a may apply corresponding retransmission timer values for the current duplexing mode. That is, when the UE 115-a switches from the first duplexing mode to the second duplexing mode and a retransmission timer restarts, the UE 115-a may use the retransmission timer values for the second duplexing mode rather than for the first duplexing mode even though the retransmission timer that expired and is now being restarted was initially configured for the first duplexing mode.

FIG. 3 illustrates an example of a resource configuration 300 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. In some examples, the resource configuration 300 may be implemented by or may implement aspects of the

wireless communications systems

100 and 200. For example, a base station 105 and a UE 115 may use the resource configuration 300 to communicate between each other, where the base station 105 and the UE 115 represent corresponding devices as described with reference to FIGs. 1 and 2.

Additionally, resource configuration 300 may include an FD mode configuration 305 and an HD mode configuration 310. The FD mode configuration 305 and the HD mode configuration 310 may include different portions configured for downlink data 315, sounding reference signals (SRSs) 320, uplink data 325, and downlink control channels 330. Additionally, each of the FD mode configuration 305 and the HD mode configuration 310 may be split into multiple slots 335. For example, the FD mode configuration 305 may include a first slot 335-a, a second slot 335-b, a third slot 335-c, and a fourth slot 335-d, where each of the slots 335 for the FD mode configuration 305 may support uplink communications, downlink communications, or both. Additionally or alternatively, the HD mode configuration 310 may include a first slot 335-e, a second slot 335-f, a third slot 335-g, and a fourth slot 335-h, where each of the slots 335 for the HD mode configuration 310 may support either uplink communications alone or downlink communications alone but not both. While slots are shown in the example of FIG. 3, different length duration TTIs may be used for the FD mode configuration 305 and the HD mode configuration 310.

In some cases, the FD mode configuration 305 may be an example of an SBFD slot format for some FDD base stations 105 and UEs 115 operating in the FD mode and/or the HD mode. The second slot 335-b and the third slot 335-c (e.g., center two slots) of the FD mode configuration 305 may be examples of D+U slots. A D+U slot may be used for both uplink and downlink transmissions. For example, a D+U slot may comprise both the downlink data 315 and the uplink data 325 (e.g., along with other control and reference signaling, such as the SRS 320 and the downlink control channel 330) . Accordingly, the UE 115 may receive the downlink data 315 using the same time resources as when transmitting the uplink data 325 (e.g., but on different frequency resources) during the second slot 335-b and the third slot 335-c of the FD mode configuration 305. The FD mode configuration 305 may also include the first slot 335-a configured for the UE 115 to receive the downlink data 315 alone (e.g., along with the downlink control channel 330) and may include the fourth slot 335-d configured for the UE 115 to transmit the uplink data 325 (e.g., along with the SRSs 320) .

Additionally or alternatively, the HD mode configuration 310 may support one-way communications during any given slot 335. For example, the base station 105 may configure the first slot 335-e, the second slot 335-f, and the third slot 335-g of the HD mode configuration 310 for the UE 115 to receive the downlink data 315 and may configure the fourth slot 335-h of the HD mode configuration 310 for the UE 115 to transmit the uplink data 325.

As described herein, the base station 105-a may indicate specific configurations (e.g., CGs for uplink communications, SPSs for downlink communications) to the UE 115 for specific duplexing modes. For example, the UE 115-a may use a first configuration (e.g., including a first CG for uplink communications and/or a first SPS for downlink communications) for a first duplexing mode (e.g., the FD mode) , and a second configuration (e.g., including a second CG for uplink communications and a second SPS for downlink communications) for a second duplexing mode (e.g., the HD mode) . That is, the base station 105 may configure different configurations (e.g., SPSs, CGs) for the FD mode and for the HD mode. For example, the base station 105 may configure the UE 115 with a first CG in the uplink data 325 of the fourth slot 335-h of the HD mode configuration 310 and with a second CG in the uplink data 325 of the second slot 335-b and the fourth slot 335-d of the FD mode configuration 305.

Subsequently, if the base station 105 indicates for the UE 115 to switch duplexing modes from a first duplexing mode to a second duplexing mode (e.g., from the FD mode to the HD mode or from the HD mode to the FD mode) , the configuration for the first duplexing mode may be deactivated, deconfigured, or suspended based on a type of the configuration for the first duplexing mode and a type of switching for switching between the duplexing modes as described previously with reference to FIG. 2. For example, if the first configuration includes an SPS (e.g., for downlink communications) and a type-2 CG (e.g., for uplink communications) , the SPS and the type-2 CG may be deactivated (e.g., for dynamic switching between duplexing modes) or may be deconfigured (e.g., for semi-static switching between duplexing modes) . Additionally, of the first configuration includes a type-1 CG (e.g., for uplink communications) , the type-1 CG may be suspended.

Additionally, as described previously with reference to FIG. 2, the specific configurations for each duplexing modes may be defined per BWP or per sub-BWP based on if the base station 105 is switching duplexing modes for the UE 115 dynamically or semi-statically. For example, when the base station 105 uses dynamically switching duplexing modes for the UE 115 (e.g., for higher frequency switching of duplexing modes) , the base station 105 may define the configurations (e.g., CGs, SPSs) per sub-BWP. Accordingly, to indicate for the UE 115 to switch duplexing modes from a first duplexing mode to a second duplexing mode, the base station 105 may transmit an indication of a sub-BWP configured or defined for the second duplexing mode. Subsequently, when a sub-BWP is switched, the UE 115 may deactivate SPSs and type-2 CGs in a configuration for the first duplexing mode (e.g., rather than deconfiguring the SPSs and type-2 CGs) to enable a faster activation of those SPSs and type-2 CGs for the first duplexing mode if the base station 105 indicates for the UE 115 to switch back to the first duplexing mode (e.g., by activating a sub-BWP configured for or defined for the first duplexing mode) . Additionally or alternatively, when the sub-BWP is switched to indicate a switch from the first duplexing mode to the second duplexing mode for the UE 115, the UE 115 may suspend type-1 CGs in the configuration for the first duplexing mode.

Alternatively, when the base station 105 uses semi-statically switching duplexing modes for the UE 115 (e.g., for less frequency switching of duplexing modes) , the base station 105 may define the configurations (e.g., CGs, SPSs) per BWP (e.g., each BWP is associated with a duplexing mode) . Accordingly, to indicate for the UE 115 to switch duplexing modes from a first duplexing mode to a second duplexing mode, the base station 105 may transmit an indication of a BWP configured or defined for the second duplexing mode. Subsequently, when a BWP is switched, the UE 115 may deconfigure SPSs and type-2 CGs in a configuration for the first duplexing mode. Additionally or alternatively, when the BWP is switched to indicate a switch from the first duplexing mode to the second duplexing mode for the UE 115, the UE 115 may suspend type-1 CGs in the configuration for the first duplexing mode.

In some implementations, the switching between duplexing modes may be decoupled from BWP or sub-BWP switching (e.g., the base station 105 may not indicate for the UE 115 to switch duplexing modes by activating a BWP or a sub-BWP that corresponds to a particular duplexing mode) . Accordingly, the base station 105 may indicate a switch of duplexing modes from a first duplexing mode to a second duplexing mode for the UE 115 by using a slot format configuration (e.g., D+U, D/U/F, where ‘F’ may refer to a flexible or FD symbol, slot, or TTI that can be used for either uplink or downlink communications) .

For dynamic switching between the duplexing modes where the switching is decoupled from the sub-BWP switching, the base station 105 may transmit a slot format configuration for indicating the duplexing mode switch from the first duplexing mode to the second duplexing mode by transmitting a slot format indicator (SFI) in a DCI indicating a slot format configured for the second duplexing mode or a specific TDD configuration for the second duplexing mode (e.g., via RRC signaling, such as a tdd-UL-DL-ConfigurationCommon signal or a tdd-ULDL-ConfigurationDedicated signal) . In some examples for dynamic switching between the duplexing modes but where the switching is decoupled from the sub-BWP switching, the configurations for the duplexing modes may still be configured per sub-BWP, but if the duplexing mode is switched from the first duplexing mode to the second duplexing mode (e.g., based on the base station 105 transmitting the slot format configuration) , the UE 115 may deactivate any SPSs or type-2 CGs and/or may suspend any type-1 CGs for the first duplexing mode.

Additionally or alternatively, for semi-static switching between the duplexing modes where the switching is decoupled from the BWP switching, the base station 105 may transmit a slot format configuration for indicating the duplexing mode switch from the first duplexing mode to the second duplexing mode by transmitting a specific TDD configuration for the second duplexing mode (e.g., via RRC signaling, such as a tdd-UL-DL-ConfigurationCommon signal or a tdd-ULDL-ConfigurationDedicated signal) . In some examples for semi-static switching between the duplexing modes but where the switching is decoupled from the BWP switching, the configurations for the duplexing modes may still be configured per BWP, but if the duplexing mode is switched from the first duplexing mode to the second duplexing mode (e.g., based on the base station 105 transmitting the slot format configuration) , the UE 115 may deactivate any SPSs or type-2 CGs and/or may suspend any type-1 CGs for the first duplexing mode.

As described previously and in some implementations, when the duplex mode switching is decoupled from BWP or sub-BWP switching, the base station 105 may transmit an indication of a slot format configuration (e.g., via dedicated signaling for switching duplexing modes, such as Layer 1 (L1) or Layer 2 (L2) signaling) to indicate for the UE 115 to switch duplexing mode, where different slot format configurations correspond to respective duplexing modes. For example, the base station 105 may indicate the FD mode configuration 305 for the UE 115 to operate according to the FD mode and may indicate the HD mode configuration 310 for the UE 115 to operate according to the HD mode. The FD mode configuration 305 and the HD mode configuration 310 may represent example slot format configurations and do not represent an exhaustive list of possible slot format configurations for the different duplexing modes.

FIG. 4 illustrates an example of a process flow 400 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. In some examples, the process flow 400 may be implemented by aspects of the

wireless communications systems

100 and 200. Process flow 400 may include a UE 115-b and a base station 105-b, which may be examples of UEs 115 and base stations 115 described with reference to FIGs. 1–3.

In the following description of the process flow 400, the operations between the UE 115-b and the base station 105-b may be transmitted in a different order than the order shown, or the operations performed by the UE 115-b and the base station 105-b may be performed in different orders or at different times. Some operations may also be left out of the process flow 400, or other operations may be added to the process flow 400. While the UE 115-b and the base station 105-b are shown performing a number of the operations of process flow 400, any device may perform the operations shown.

At 405, the UE 115-b may transmit a UE capability report or indication to the base station 105-b to indicate one or more parameters supported by the UE 115-b. For example, the UE capability report or indication may indicate that the UE 115-b supports a capability to operate in an FD mode, an HD mode, or both; supports duplexing mode specific SPSs, CGs, or both (e.g., duplexing mode specific configurations) ; supports a per BWP configuration of SPSs, CGs, or both; supports a per sub-BWP configuration of SPSs, CGs, or both; supports a capability for switching between duplexing modes (e.g., based on a slot format indication, BWP switching, sub-BWP switching, or other signaling) ; different retransmission timers for different duplexing modes; or a combination thereof. That is, the UE capability report or indication may at least indicate that the UE 115-b supports a capability for switching between a first duplexing mode and a second duplexing mode.

Based on receiving the UE capability report or indication, the base station 105-b may then determine and transmit one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode. For example, the first configuration and the second configuration may include SPSs, type-1 CGs, and/or type-2 CGs for each of the first duplexing mode and the second duplexing mode. Additionally or alternatively, the first configuration and the second configuration may generally include criteria needed for the UE 115-b to communicate with the base station 105-b using either the first duplexing mode or the second duplexing mode. In some examples, the first configuration and the second configuration may be defined per sub-BWP (e.g., for dynamic switching of duplexing modes) . Additionally or alternatively, the first configuration and the second configuration may be defined per BWP (e.g., for semi-static switching of duplexing modes) .

At 410, the UE 115-b may be operating in a first duplexing mode (e.g., the HD mode or the FD mode) to communicate with the base station 105-b. For example, the UE 115-b may communicate with the base station 105-b using the first duplexing mode based on receiving the one or both of the first configuration or the second configuration.

At 415, the base station 105-b may determine to switch the duplexing mode of the UE 115-b. For example, the base station 105-b may determine that wireless resources could be more efficiently utilized if the UE 115-b were operating in an FD mode instead of an HD mode, that the UE 115-b can save power if operating in the HD mode instead of the FD mode, that resources are overburdened based on having a high number of UEs 115 (e.g., including the UE 115-b) operate in the FD mode, or a different reason for switching duplexing modes.

At 420, the base station 105-b may send an indication to the UE 115-b to switch duplexing modes from the first duplexing mode to a second duplexing mode (e.g., from the HD mode to the FD mode or from the FD mode to the HD mode) . In some examples, the base station 105-b may dynamically switch the duplexing mode of the UE 115-b or may semi-statically switch the duplexing mode of the UE 115-b. For example, the indication for the UE 115-b to switch to the second duplexing mode may include the second configuration corresponding to the second duplexing mode, a DCI message indicating to activate the second duplexing mode, an activation message for a BWP configured for the second duplexing mode (e.g., for semi-static switching of duplexing modes) , an activation message for a sub-BWP configured for the second duplexing mode (e.g., for dynamic switching of duplexing modes) , a slot configuration for the second duplexing mode, or any combination thereof.

For the slot configuration for the second duplexing mode, the base station 105-b may transmit dedicated signaling for switching the duplexing mode (e.g., such as L1 or L2 signaling) . For example, the dedicated signaling may include an SFI in a DCI message, a common TDD configuration for communications (e.g., RRC signaling, such as a tdd-UL-DL-ConfigurationCommon signal) , a dedicated TDD configuration for communications (e.g., RRC signaling, such as a tdd-ULDL-ConfigurationDedicated signal) , or any combination thereof.

At 425, the UE 115-b may deactivate the first configuration corresponding to the first duplexing mode based on receiving the indication to switch duplexing modes. For example, as described with reference to FIGs. 2 and 3, if the indication transmitted at 420 includes an activation of a sub-BWP configured for the second duplexing mode (e.g., when the switching of duplexing modes is coupled to switching sub-BWPs) and the first configuration includes an SPS and/or a type-2 CG, the UE 115-b may deactivate the first configuration (e.g., deactivate the SPS and/or the type-2 CG) . Additionally or alternatively, if the indication transmitted at 420 includes an activation of a sub-BWP configured for the second duplexing mode (e.g., when the switching of duplexing modes is coupled to switching sub-BWPs) and the first configuration includes a type-1 CG, the UE 115-b may suspend the first configuration (e.g., suspend the type-1 CG) .

Additionally or alternatively, as described with reference to FIGs. 2 and 3, if the indication transmitted at 420 includes dedicated signaling indicating for the UE 115-b to switch duplexing modes from the first duplexing mode to the second duplexing mode (e.g., when the switching of duplexing modes is decoupled from switching sub-BWPs or switching BWPs) and the first configuration includes an SPS and/or a type-2 CG, the UE 115-b may deactivate the first configuration (e.g., deactivate the SPS and/or the type-2 CG) . Additionally or alternatively, if the indication transmitted at 420 includes dedicated signaling indicating for the UE 115-b to switch duplexing modes from the first duplexing mode to the second duplexing mode (e.g., when the switching of duplexing modes is decoupled from switching sub-BWPs or switching BWPs) and the first configuration includes a type-1 CG, the UE 115-b may suspend the first configuration (e.g., suspend the type-1 CG) . In some examples, the dedicated signaling may include a slot format configuration, an SFI in a DCI message, a common time division duplexing configuration for communications, a dedicated time division duplexing configuration for communications, L1 signaling, L2 signaling, or any combination thereof as described previously.

At 430, additionally or alternatively, the UE 115-b may deconfigure (e.g., remove from memory of the UE 115-b) the first configuration corresponding to the first duplexing mode based on receiving the indication to switch duplexing modes. For example, as described with reference to FIGs. 2 and 3, if the indication transmitted at 420 includes an activation of a BWP configured for the second duplexing mode (e.g., when the switching of duplexing modes is coupled to switching BWPs) and the first configuration includes an SPS and/or a type-2 CG, the UE 115-b may deconfigure the first configuration (e.g., deconfigure the SPS and/or the type-2 CG) . Additionally or alternatively, if the indication transmitted at 420 includes an activation of a BWP configured for the second duplexing mode (e.g., when the switching of duplexing modes is coupled to switching BWPs) and the first configuration includes a type-1 CG, the UE 115-b may suspend the first configuration (e.g., suspend the type-1 CG) .

At 435, the UE 115-b may activate the second configuration for operating in the second duplexing mode based on receiving the indication to switch duplexing modes at 420 and based on deactivating, deconfiguring, and/or suspending the first configuration. In some examples, the indication to switch duplexing modes received at 420 may include the second configuration, which may indicate for the UE 115-b to switch to the corresponding second duplexing mode. Additionally or alternatively, the UE 115-b may already have both the first configuration and the second configuration (e.g., the UE 115-b received both configurations from the base station 105-b previously) , and the UE 115-b may switch to or activate the second configuration based on the indication to switch duplexing modes received at 420 (e.g., an activation of the second configuration received in DCI, an activation of a BWP or sub-BWP configured for the second duplexing mode, dedicated signaling to indicate for the UE 115-b to switch to the second duplexing mode) .

After switching to the second duplexing mode, the UE 115-b may refrain from adjusting one or more HARQ operations initiated for the first duplexing mode when switching to the second duplexing mode. For example, as described with reference to FIG. 2, the UE 115-b may not reset any ongoing HARQ processes and HARQ timers initially configured and started for the first duplexing mode may not be reset when switching to the second duplexing mode. Additionally or alternatively, the UE 115-b may receive, from the base station 105-b, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, where the first retransmission timer and the second retransmission timer are independent of the UE 115-b switching between duplexing modes. That is, switching duplexing modes may not impact currently running retransmission timer values, and if a retransmission timer restarts, the UE 115-b may apply corresponding retransmission timer values for the switched to duplexing mode.

Additionally or alternatively, in some implementations, the UE 115-b may receive, from the base station 105-b, one or both of a first set of configurations for communicating using the first duplexing mode or a second set of configurations for communicating using the second duplexing mode, where the first set of configurations and the second set of configurations are defined for a set of CCs configured for the UE 115-b. Accordingly, the UE 115-b may receive, from the base station 105-b, a joint activation message for one or more of the first set of configurations or one or more of the second set of configurations, where communicating with the base station 105-b is based on receiving the joint activation message. For example, as described with reference to FIG. 2, the UE 115-b may be configured with multiple CCs (e.g., or multiple cells) , and the first set of configurations and the second set of configurations may be defined for the multiple CCs of the UE 115-b, such that the base station 105-b can activate or deactivate multiple configurations for multiple CCs with a single message.

At 440, after switching to the second duplexing mode, the UE 115-b may operate according to the second duplexing mode to communicate with the base station 105-b. In some implementations, the base station 105-b may indicate for the UE 115-b to switch back to the first duplexing mode at some point in the future by transmitting another indication to switch duplexing modes, where this other indication may include similar content as described previously.

FIG. 5 shows a block diagram 500 of a device 505 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communications manager 520. The device 505 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .

The receiver 510 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . Information may be passed on to other components of the device 505. The receiver 510 may utilize a single antenna or a set of multiple antennas.

The transmitter 515 may provide a means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . In some examples, the transmitter 515 may be co-located with a receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a set of multiple antennas.

The communications manager 520, the receiver 510, the transmitter 515, or various combinations thereof or various components thereof may be examples of means for performing various aspects of resource activation and deactivation for different duplexing modes as described herein. For example, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

In some examples, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . 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, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory) .

Additionally or alternatively, in some examples, the communications manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by a processor. If implemented in code executed by a processor, the functions of the communications manager 520, the receiver 510, the transmitter 515, 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 as or otherwise supporting a means for performing the functions described in the present disclosure) .

In some examples, the communications manager 520 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 510, the transmitter 515, or both. For example, the communications manager 520 may receive information from the receiver 510, send information to the transmitter 515, or be integrated in combination with the receiver 510, the transmitter 515, or both to receive information, transmit information, or perform various other operations as described herein.

The communications manager 520 may support wireless communications at a UE in accordance with examples as disclosed herein. For example, the communications manager 520 may be configured as or otherwise support a means for transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The communications manager 520 may be configured as or otherwise support a means for receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The communications manager 520 may be configured as or otherwise support a means for communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

By including or configuring the communications manager 520 in accordance with examples as described herein, the device 505 (e.g., a processor controlling or otherwise coupled to the receiver 510, the transmitter 515, the communications manager 520, or a combination thereof) may support techniques for reduced power consumption and more efficient utilization of communication resources by switching between duplexing modes. For example, the device 505 may reduce power consumption by operating in the HD mode and may have a more efficient utilization of communication resources by operating in the FD mode. The device 505 may then be able to support both by switching between the HD mode and the FD mode.

FIG. 6 shows a block diagram 600 of a device 605 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The device 605 may be an example of aspects of a device 505 or a UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communications manager 620. The device 605 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .

The receiver 610 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . Information may be passed on to other components of the device 605. The receiver 610 may utilize a single antenna or a set of multiple antennas.

The transmitter 615 may provide a means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . In some examples, the transmitter 615 may be co-located with a receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a set of multiple antennas.

The device 605, or various components thereof, may be an example of means for performing various aspects of resource activation and deactivation for different duplexing modes as described herein. For example, the communications manager 620 may include a UE capability component 625, a duplexing mode configuration component 630, a duplexing mode communication component 635, or any combination thereof. The communications manager 620 may be an example of aspects of a communications manager 520 as described herein. In some examples, the communications manager 620, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 610, the transmitter 615, or both. For example, the communications manager 620 may receive information from the receiver 610, send information to the transmitter 615, or be integrated in combination with the receiver 610, the transmitter 615, or both to receive information, transmit information, or perform various other operations as described herein.

The communications manager 620 may support wireless communications at a UE in accordance with examples as disclosed herein. The UE capability component 625 may be configured as or otherwise support a means for transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The duplexing mode configuration component 630 may be configured as or otherwise support a means for receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The duplexing mode communication component 635 may be configured as or otherwise support a means for communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

FIG. 7 shows a block diagram 700 of a communications manager 720 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The communications manager 720 may be an example of aspects of a communications manager 520, a communications manager 620, or both, as described herein. The communications manager 720, or various components thereof, may be an example of means for performing various aspects of resource activation and deactivation for different duplexing modes as described herein. For example, the communications manager 720 may include a UE capability component 725, a duplexing mode configuration component 730, a duplexing mode communication component 735, a duplexing mode switching component 740, a sub-BWP switching component 745, a BWP switching component 750, a dedicated signaling switching component 755, an HARQ component 760, a CC component 765, or any combination thereof. Each of these components may communicate, directly or indirectly, with one another (e.g., via one or more buses) .

The communications manager 720 may support wireless communications at a UE in accordance with examples as disclosed herein. The UE capability component 725 may be configured as or otherwise support a means for transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The duplexing mode configuration component 730 may be configured as or otherwise support a means for receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The duplexing mode communication component 735 may be configured as or otherwise support a means for communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

In some examples, to support communicating with the base station, the duplexing mode switching component 740 may be configured as or otherwise support a means for communicating with the base station using the first duplexing mode. In some examples, the duplexing mode switching component 740 may be configured as or otherwise support a means for receiving, from the base station, an indication for the UE to switch to the second duplexing mode. In some examples, the duplexing mode switching component 740 may be configured as or otherwise support a means for communicating with the base station using the second duplexing mode based on receiving the indication.

In some examples, the indication for the UE to switch to the second duplexing mode includes the second configuration, a DCI message indicating to activate the second duplexing mode, an activation message for a BWP configured for the second duplexing mode, an activation message for a sub-BWP configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.

In some examples, the first configuration and the second configuration are defined per sub-BWP, and the sub-BWP switching component 745 may be configured as or otherwise support a means for receiving, from the base station, an indication of a sub-BWP for the UE to use for subsequent communications, where the sub-BWP is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the base station using one of the first duplexing mode or the second duplexing mode is based on receiving the indication of the sub-BWP.

In some examples, the sub-BWP is configured for the second duplexing mode and the first configuration includes an SPS configuration or a type-2 CG, and the sub-BWP switching component 745 may be configured as or otherwise support a means for deactivating the first configuration for the first duplexing mode based on receiving the indication of the sub-BWP that is configured for the second duplexing mode and the first configuration including the SPS configuration or the type-2 CG.

In some examples, the sub-BWP is configured for the second duplexing mode and the first configuration includes a type-1 CG, and the sub-BWP switching component 745 may be configured as or otherwise support a means for suspending the first configuration for the first duplexing mode based on receiving the indication of the sub-BWP that is configured for the second duplexing mode and the first configuration including the type-1 CG.

In some examples, the first configuration and the second configuration are defined per BWP, and the BWP switching component 750 may be configured as or otherwise support a means for receiving, from the base station, an indication of a BWP for the UE to use for subsequent communications, where the BWP is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the base station using one of the first duplexing mode or the second duplexing mode is based on receiving the indication of the BWP.

In some examples, the BWP is configured for the second duplexing mode and the first configuration includes an SPS configuration or a type-2 CG, and the BWP switching component 750 may be configured as or otherwise support a means for deconfiguring the first configuration for the first duplexing mode based on receiving the indication of the BWP that is configured for the second duplexing mode and the first configuration including the SPS configuration or the type-2 CG.

In some examples, the BWP is configured for the second duplexing mode and the first configuration includes a type-1 CG, and the BWP switching component 750 may be configured as or otherwise support a means for suspending the first configuration for the first duplexing mode based on receiving the indication of the BWP that is configured for the second duplexing mode and the first configuration including the type-1 CG.

In some examples, the dedicated signaling switching component 755 may be configured as or otherwise support a means for receiving, from the base station, dedicated signaling indicating for the UE to switch duplexing modes. In some examples, the dedicated signaling switching component 755 may be configured as or otherwise support a means for switching duplexing modes based on receiving the dedicated signaling.

In some examples, the dedicated signaling switching component 755 may be configured as or otherwise support a means for deactivating or suspending the first configuration or the second configuration based on receiving the dedicated signaling.

In some examples, the dedicated signaling includes a slot format configuration, a slot format indicator in a DCI message, a common TDD configuration for communications, a dedicated TDD configuration for communications, L1 signaling, L2 signaling, or any combination thereof.

In some examples, the HARQ component 760 may be configured as or otherwise support a means for receiving, from the base station, an indication for the UE to switch duplexing modes from the first duplexing mode to the second duplexing mode. In some examples, the HARQ component 760 may be configured as or otherwise support a means for refraining from adjusting one or more HARQ operations initiated for the first duplexing mode when switching to the second duplexing mode.

In some examples, the HARQ component 760 may be configured as or otherwise support a means for receiving, from the base station, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, where the first retransmission timer and the second retransmission timer are independent of the UE switching between duplexing modes.

In some examples, to support receiving one or both of the first configuration or the second configuration, the CC component 765 may be configured as or otherwise support a means for receiving, from the base station, one or both of a first set of multiple configurations for communicating using the first duplexing mode or a second set of multiple configurations for communicating using the second duplexing mode, where the first set of multiple configurations and the second set of multiple configurations are defined for a set of multiple CCs configured for the UE. In some examples, the CC component 765 may be configured as or otherwise support a means for receiving, from the base station, a joint activation message for one or more of the first set of multiple configurations or one or more of the second set of multiple configurations, where communicating with the base station using one of the first duplexing mode or the second duplexing mode is based on receiving the joint activation message.

FIG. 8 shows a diagram of a system 800 including a device 805 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The device 805 may be an example of or include the components of a device 505, a device 605, or a UE 115 as described herein. The device 805 may communicate wirelessly with one or more base stations 105, UEs 115, or any combination thereof. The device 805 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 820, an input/output (I/O) controller 810, a transceiver 815, an antenna 825, a memory 830, code 835, and a processor 840. 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 845) .

The I/O controller 810 may manage input and output signals for the device 805. The I/O controller 810 may also manage peripherals not integrated into the device 805. In some cases, the I/O controller 810 may represent a physical connection or port to an external peripheral. In some cases, the I/O controller 810 may utilize an operating system such as

or another known operating system. Additionally or alternatively, the I/O controller 810 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I/O controller 810 may be implemented as part of a processor, such as the processor 840. In some cases, a user may interact with the device 805 via the I/O controller 810 or via hardware components controlled by the I/O controller 810.

In some cases, the device 805 may include a single antenna 825. However, in some other cases, the device 805 may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 815 may communicate bi-directionally, via the one or more antennas 825, wired, or wireless links as described herein. For example, the transceiver 815 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 815 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 825 for transmission, and to demodulate packets received from the one or more antennas 825. The transceiver 815, or the transceiver 815 and one or more antennas 825, may be an example of a transmitter 515, a transmitter 615, a receiver 510, a receiver 610, or any combination thereof or component thereof, as described herein.

The memory 830 may include random access memory (RAM) and read-only memory (ROM) . The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed by the processor 840, cause the device 805 to perform various functions described herein. The code 835 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 835 may not be directly executable by the processor 840 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 830 may contain, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.

The processor 840 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 840 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting resource activation and deactivation for different duplexing modes) . For example, the device 805 or a component of the device 805 may include a processor 840 and memory 830 coupled to the processor 840, the processor 840 and memory 830 configured to perform various functions described herein.

The communications manager 820 may support wireless communications at a UE in accordance with examples as disclosed herein. For example, the communications manager 820 may be configured as or otherwise support a means for transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The communications manager 820 may be configured as or otherwise support a means for receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The communications manager 820 may be configured as or otherwise support a means for communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration.

By including or configuring the communications manager 820 in accordance with examples as described herein, the device 805 may support techniques for reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, and longer battery life by switching between duplexing modes. For example, a base station 105 (e.g., or another device in charge of configuring communications for the device 805) may coordinate with the device 805 to indicate which duplexing mode the device 805 is to use for subsequent communications, which may lead to the reduced power consumption, efficient communication resource utilization, and longer battery life.

In some examples, the communications manager 820 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 815, the one or more antennas 825, or any combination thereof. Although the communications manager 820 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 820 may be supported by or performed by the processor 840, the memory 830, the code 835, or any combination thereof. For example, the code 835 may include instructions executable by the processor 840 to cause the device 805 to perform various aspects of resource activation and deactivation for different duplexing modes as described herein, or the processor 840 and the memory 830 may be otherwise configured to perform or support such operations.

FIG. 9 shows a block diagram 900 of a device 905 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The device 905 may be an example of aspects of a base station 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communications manager 920. The device 905 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .

The receiver 910 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . Information may be passed on to other components of the device 905. The receiver 910 may utilize a single antenna or a set of multiple antennas.

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, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . In some examples, the transmitter 915 may be co-located with a receiver 910 in a transceiver module. The transmitter 915 may utilize a single antenna or a set of multiple antennas.

The communications 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 resource activation and deactivation for different duplexing modes as described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

In some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry) . The hardware may include a processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory) .

Additionally or alternatively, in some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by a processor. If implemented in code executed by a processor, the functions of the communications 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 CPU, an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in the present disclosure) .

In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both to receive information, transmit information, or perform various other operations as described herein.

The communications manager 920 may support wireless communications at a base station in accordance with examples as disclosed herein. For example, the communications manager 920 may be configured as or otherwise support a means for receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The communications manager 920 may be configured as or otherwise support a means for transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication. The communications manager 920 may be configured as or otherwise support a means for communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

FIG. 10 shows a block diagram 1000 of a device 1005 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The device 1005 may be an example of aspects of a device 905 or a base station 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communications manager 1020. The device 1005 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .

The receiver 1010 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . Information may be passed on to other components of the device 1005. The receiver 1010 may utilize a single antenna or a set of multiple antennas.

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, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to resource activation and deactivation for different duplexing modes) . In some examples, the transmitter 1015 may be co-located with a receiver 1010 in a transceiver module. The transmitter 1015 may utilize a single antenna or a set of multiple antennas.

The device 1005, or various components thereof, may be an example of means for performing various aspects of resource activation and deactivation for different duplexing modes as described herein. For example, the communications manager 1020 may include a UE capability indication component 1025, a duplexing mode configuration indicator 1030, a duplexing mode communication component 1035, or any combination thereof. The communications manager 1020 may be an example of aspects of a communications manager 920 as described herein. In some examples, the communications manager 1020, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, send information to the transmitter 1015, or be integrated in combination with the receiver 1010, the transmitter 1015, or both to receive information, transmit information, or perform various other operations as described herein.

The communications manager 1020 may support wireless communications at a base station in accordance with examples as disclosed herein. The UE capability indication component 1025 may be configured as or otherwise support a means for receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The duplexing mode configuration indicator 1030 may be configured as or otherwise support a means for transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication. The duplexing mode communication component 1035 may be configured as or otherwise support a means for communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

FIG. 11 shows a block diagram 1100 of a communications manager 1120 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The communications manager 1120 may be an example of aspects of a communications manager 920, a communications manager 1020, or both, as described herein. The communications manager 1120, or various components thereof, may be an example of means for performing various aspects of resource activation and deactivation for different duplexing modes as described herein. For example, the communications manager 1120 may include a UE capability indication component 1125, a duplexing mode configuration indicator 1130, a duplexing mode communication component 1135, a duplexing mode switching component 1140, a sub-BWP indicator 1145, a BWP indicator 1150, a dedicated signaling switching indicator 1155, a retransmission timer component 1160, a CC configuration component 1165, or any combination thereof. Each of these components may communicate, directly or indirectly, with one another (e.g., via one or more buses) .

The communications manager 1120 may support wireless communications at a base station in accordance with examples as disclosed herein. The UE capability indication component 1125 may be configured as or otherwise support a means for receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The duplexing mode configuration indicator 1130 may be configured as or otherwise support a means for transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication. The duplexing mode communication component 1135 may be configured as or otherwise support a means for communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

In some examples, to support communicating with the UE, the duplexing mode switching component 1140 may be configured as or otherwise support a means for communicating with the UE based on the UE using the first duplexing mode. In some examples, the duplexing mode switching component 1140 may be configured as or otherwise support a means for transmitting, to the UE, an indication for the UE to switch to the second duplexing mode. In some examples, the duplexing mode switching component 1140 may be configured as or otherwise support a means for communicating with the UE based on the UE using the second duplexing mode based on transmitting the indication.

In some examples, the indication for the UE to switch to the second duplexing mode includes the second configuration, a DCI message indicating for the UE to activate the second duplexing mode, an activation message for a BWP configured for the second duplexing mode, an activation message for a sub-BWP configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.

In some examples, the first configuration and the second configuration are defined per sub-BWP, and the sub-BWP indicator 1145 may be configured as or otherwise support a means for transmitting, to the UE, an indication of a sub-BWP for the UE to use for subsequent communications, where the sub-BWP is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode is based on transmitting the indication of the sub-BWP.

In some examples, the first configuration and the second configuration are defined per BWP, and the BWP indicator 1150 may be configured as or otherwise support a means for transmitting, to the UE, an indication of a BWP for the UE to use for subsequent communications, where the BWP is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode is based on transmitting the indication of the BWP.

In some examples, the dedicated signaling switching indicator 1155 may be configured as or otherwise support a means for transmitting, to the UE, a slot format configuration, dedicated signaling indicating for the UE to switch duplexing modes.

In some examples, the retransmission timer component 1160 may be configured as or otherwise support a means for transmitting, to the UE, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, where the first retransmission timer and the second retransmission timer are independent of the UE switching between duplexing modes.

In some examples, to support transmitting one or both of the first configuration or the second configuration, the CC configuration component 1165 may be configured as or otherwise support a means for transmitting, to the UE, one or both of a first set of multiple configurations for communicating using the first duplexing mode or a second set of multiple configurations for communicating using the second duplexing mode, where the first set of multiple configurations and the second set of multiple configurations are defined for a set of multiple CCs configured for the UE. In some examples, the CC configuration component 1165 may be configured as or otherwise support a means for transmitting, to the UE, a joint activation message for one or more of the first set of multiple configurations or one or more of the second set of multiple configurations, where communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode is based on transmitting the joint activation message.

FIG. 12 shows a diagram of a system 1200 including a device 1205 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The device 1205 may be an example of or include the components of a device 905, a device 1005, or a base station 105 as described herein. The device 1205 may communicate wirelessly with one or more base stations 105, UEs 115, or any combination thereof. The device 1205 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, such as a communications manager 1220, a network communications manager 1210, a transceiver 1215, an antenna 1225, a memory 1230, code 1235, a processor 1240, and an inter-station communications manager 1245. 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 1250) .

The network communications manager 1210 may manage communications with a core network 130 (e.g., via one or more wired backhaul links) . For example, the network communications manager 1210 may manage the transfer of data communications for client devices, such as one or more UEs 115.

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 concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1215 may communicate bi-directionally, via the one or more antennas 1225, wired, or wireless links as described herein. For example, the transceiver 1215 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1215 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1225 for transmission, and to demodulate packets received from the one or more antennas 1225. The transceiver 1215, or the transceiver 1215 and one or more antennas 1225, may be an example of a transmitter 915, a transmitter 1015, a receiver 910, a receiver 1010, or any combination thereof or component thereof, as described herein.

The memory 1230 may include RAM and ROM. The memory 1230 may store computer-readable, computer-executable code 1235 including instructions that, when executed by the processor 1240, cause the device 1205 to perform various functions described herein. The code 1235 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1235 may not be directly executable by the processor 1240 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 1230 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.

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, a 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., the memory 1230) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting resource activation and deactivation for different duplexing modes) . For example, the device 1205 or a component of the device 1205 may include a processor 1240 and memory 1230 coupled to the processor 1240, the processor 1240 and memory 1230 configured to perform various functions described herein.

The inter-station communications manager 1245 may manage communications with other base stations 105, and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other base stations 105. For example, the inter-station communications manager 1245 may coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communications manager 1245 may provide an X2 interface within an LTE/LTE-A wireless communications network technology to provide communication between base stations 105.

The communications manager 1220 may support wireless communications at a base station in accordance with examples as disclosed herein. For example, the communications manager 1220 may be configured as or otherwise support a means for receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The communications manager 1220 may be configured as or otherwise support a means for transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication. The communications manager 1220 may be configured as or otherwise support a means for communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration.

In some examples, the communications manager 1220 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1215, the one or more antennas 1225, or any combination thereof. Although the communications manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1220 may be supported by 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 resource activation and deactivation for different duplexing modes as described herein, or the processor 1240 and the memory 1230 may be otherwise configured to perform or support such operations.

FIG. 13 shows a flowchart illustrating a method 1300 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The operations of the method 1300 may be implemented by a UE or its components as described herein. For example, the operations of the method 1300 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 1305, the method may include transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The operations of 1305 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed by a UE capability component 725 as described with reference to FIG. 7.

At 1310, the method may include receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The operations of 1310 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed by a duplexing mode configuration component 730 as described with reference to FIG. 7.

At 1315, the method may include communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration. The operations of 1315 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed by a duplexing mode communication component 735 as described with reference to FIG. 7.

FIG. 14 shows a flowchart illustrating a method 1400 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE or its components as described herein. For example, the operations of the method 1400 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 1405, the method may include transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The operations of 1405 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed by a UE capability component 725 as described with reference to FIG. 7.

At 1410, the method may include receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The operations of 1410 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed by a duplexing mode configuration component 730 as described with reference to FIG. 7.

At 1415, the method may include communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration. The operations of 1415 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed by a duplexing mode communication component 735 as described with reference to FIG. 7.

At 1420, the method may include communicating with the base station using the first duplexing mode. The operations of 1420 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1420 may be performed by a duplexing mode switching component 740 as described with reference to FIG. 7.

At 1425, the method may include receiving, from the base station, an indication for the UE to switch to the second duplexing mode. The operations of 1425 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1425 may be performed by a duplexing mode switching component 740 as described with reference to FIG. 7.

At 1430, the method may include communicating with the base station using the second duplexing mode based on receiving the indication. The operations of 1430 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1430 may be performed by a duplexing mode switching component 740 as described with reference to FIG. 7.

FIG. 15 shows a flowchart illustrating a method 1500 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE or its components as described herein. For example, the operations of the method 1500 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 1505, the method may include transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The operations of 1505 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a UE capability component 725 as described with reference to FIG. 7.

At 1510, the method may include receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The operations of 1510 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a duplexing mode configuration component 730 as described with reference to FIG. 7.

At 1515, the method may include communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration. The operations of 1515 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a duplexing mode communication component 735 as described with reference to FIG. 7.

At 1520, the method may include receiving, from the base station, an indication of a sub-BWP for the UE to use for subsequent communications, where the sub-BWP is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the base station using one of the first duplexing mode or the second duplexing mode is based on receiving the indication of the sub-BWP. The operations of 1520 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1520 may be performed by a sub-BWP switching component 745 as described with reference to FIG. 7.

FIG. 16 shows a flowchart illustrating a method 1600 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The operations of the method 1600 may be implemented by a UE or its components as described herein. For example, the operations of the method 1600 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 1605, the method may include transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The operations of 1605 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a UE capability component 725 as described with reference to FIG. 7.

At 1610, the method may include receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The operations of 1610 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by a duplexing mode configuration component 730 as described with reference to FIG. 7.

At 1615, the method may include communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration. The operations of 1615 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by a duplexing mode communication component 735 as described with reference to FIG. 7.

At 1620, the method may include receiving, from the base station, an indication of a BWP for the UE to use for subsequent communications, where the BWP is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, where communicating with the base station using one of the first duplexing mode or the second duplexing mode is based on receiving the indication of the BWP. The operations of 1620 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1620 may be performed by a BWP switching component 750 as described with reference to FIG. 7.

FIG. 17 shows a flowchart illustrating a method 1700 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The operations of the method 1700 may be implemented by a UE or its components as described herein. For example, the operations of the method 1700 may be performed by a UE 115 as described with reference to FIGs. 1 through 8. In some examples, a UE may execute a set of instructions to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may perform aspects of the described functions using special-purpose hardware.

At 1705, the method may include transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a UE capability component 725 as described with reference to FIG. 7.

At 1710, the method may include receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based on transmitting the capability indication. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a duplexing mode configuration component 730 as described with reference to FIG. 7.

At 1715, the method may include communicating with the base station using one of the first duplexing mode or the second duplexing mode based on receiving the one or both of the first configuration or the second configuration. The operations of 1715 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a duplexing mode communication component 735 as described with reference to FIG. 7.

At 1720, the method may include receiving, from the base station, dedicated signaling indicating for the UE to switch duplexing modes. The operations of 1720 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1720 may be performed by a dedicated signaling switching component 755 as described with reference to FIG. 7.

At 1725, the method may include switching duplexing modes based on receiving the dedicated signaling. The operations of 1725 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1725 may be performed by a dedicated signaling switching component 755 as described with reference to FIG. 7.

FIG. 18 shows a flowchart illustrating a method 1800 that supports resource activation and deactivation for different duplexing modes in accordance with aspects of the present disclosure. The operations of the method 1800 may be implemented by a base station or its components as described herein. For example, the operations of the method 1800 may be performed by a base station 105 as described with reference to FIGs. 1 through 4 and 9 through 12. In some examples, a base station may execute a set of instructions to control the functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may perform aspects of the described functions using special-purpose hardware.

At 1805, the method may include receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication including a capability of the UE for switching between a first duplexing mode and a second duplexing mode. The operations of 1805 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by a UE capability indication component 1125 as described with reference to FIG. 11.

At 1810, the method may include transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based on receiving the capability indication. The operations of 1810 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a duplexing mode configuration indicator 1130 as described with reference to FIG. 11.

At 1815, the method may include communicating with the UE based on the UE using one of the first duplexing mode or the second duplexing mode based on transmitting the one or both of the first configuration or the second configuration. The operations of 1815 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1815 may be performed by a duplexing mode communication component 1135 as described with reference to FIG. 11.

The following provides an overview of aspects of the present disclosure:

Aspect 1: A method for wireless communications at a UE, comprising: transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication comprising a capability of the UE for switching between a first duplexing mode and a second duplexing mode; receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based at least in part on transmitting the capability indication; and communicating with the base station using one of the first duplexing mode or the second duplexing mode based at least in part on receiving the one or both of the first configuration or the second configuration.

Aspect 2: The method of aspect 1, wherein communicating with the base station comprises: communicating with the base station using the first duplexing mode, the method further comprising; receiving, from the base station, an indication for the UE to switch to the second duplexing mode; and communicating with the base station using the second duplexing mode based at least in part on receiving the indication.

Aspect 3: The method of aspect 2, wherein the indication for the UE to switch to the second duplexing mode comprises the second configuration, a downlink control information message indicating to activate the second duplexing mode, an activation message for a bandwidth part configured for the second duplexing mode, an activation message for a sub-bandwidth part configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.

Aspect 4: The method of any of aspects 1 through 3, wherein the first configuration and the second configuration are defined per sub-bandwidth part, the method further comprising: receiving, from the base station, an indication of a sub-bandwidth part for the UE to use for subsequent communications, wherein the sub-bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the indication of the sub-bandwidth part.

Aspect 5: The method of aspect 4, wherein the sub-bandwidth part is configured for the second duplexing mode and the first configuration comprises a semi-persistent scheduling configuration or a type two configured grant, the method further comprising: deactivating the first configuration for the first duplexing mode based at least in part on receiving the indication of the sub-bandwidth part that is configured for the second duplexing mode and the first configuration comprising the semi-persistent scheduling configuration or the type two configured grant.

Aspect 6: The method of any of aspects 4 through 5, wherein the sub-bandwidth part is configured for the second duplexing mode and the first configuration comprises a type one configured grant, the method further comprising: suspending the first configuration for the first duplexing mode based at least in part on receiving the indication of the sub-bandwidth part that is configured for the second duplexing mode and the first configuration comprising the type one configured grant.

Aspect 7: The method of any of aspects 1 through 3, wherein the first configuration and the second configuration are defined per bandwidth part, the method further comprising: receiving, from the base station, an indication of a bandwidth part for the UE to use for subsequent communications, wherein the bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the indication of the bandwidth part.

Aspect 8: The method of aspect 7, wherein the bandwidth part is configured for the second duplexing mode and the first configuration comprises a semi-persistent scheduling configuration or a type two configured grant, the method further comprising: deconfiguring the first configuration for the first duplexing mode based at least in part on receiving the indication of the bandwidth part that is configured for the second duplexing mode and the first configuration comprising the semi-persistent scheduling configuration or the type two configured grant.

Aspect 9: The method of any of aspects 7 through 8, wherein the bandwidth part is configured for the second duplexing mode and the first configuration comprises a type one configured grant, the method further comprising: suspending the first configuration for the first duplexing mode based at least in part on receiving the indication of the bandwidth part that is configured for the second duplexing mode and the first configuration comprising the type one configured grant.

Aspect 10: The method of any of aspects 1 through 9, further comprising: receiving, from the base station, dedicated signaling indicating for the UE to switch duplexing modes; and switching duplexing modes based at least in part on receiving the dedicated signaling.

Aspect 11: The method of aspect 10, further comprising: deactivating or suspending the first configuration or the second configuration based at least in part on receiving the dedicated signaling.

Aspect 12: The method of any of aspects 10 through 11, wherein the dedicated signaling comprises a slot format configuration, a slot format indicator in a downlink control information message, a common time division duplexing configuration for communications, a dedicated time division duplexing configuration for communications, layer one signaling, layer two signaling, or any combination thereof.

Aspect 13: The method of any of aspects 1 through 12, further comprising: receiving, from the base station, an indication for the UE to switch duplexing modes from the first duplexing mode to the second duplexing mode; and refraining from adjusting one or more hybrid automatic repeat request operations initiated for the first duplexing mode when switching to the second duplexing mode.

Aspect 14: The method of any of aspects 1 through 13, further comprising: receiving, from the base station, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, wherein the first retransmission timer and the second retransmission timer are independent of the UE switching between duplexing modes.

Aspect 15: The method of any of aspects 1 through 14, wherein receiving one or both of the first configuration or the second configuration comprises: receiving, from the base station, one or both of a first plurality of configurations for communicating using the first duplexing mode or a second plurality of configurations for communicating using the second duplexing mode, wherein the first plurality of configurations and the second plurality of configurations are defined for a plurality of component carriers configured for the UE, the method further comprising; and receiving, from the base station, a joint activation message for one or more of the first plurality of configurations or one or more of the second plurality of configurations, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the joint activation message.

Aspect 16: A method for wireless communications at a base station, comprising: receiving, from a UE, a capability indication of parameters supported by the UE, the capability indication comprising a capability of the UE for switching between a first duplexing mode and a second duplexing mode; transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based at least in part on receiving the capability indication; and communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode based at least in part on transmitting the one or both of the first configuration or the second configuration.

Aspect 17: The method of aspect 16, wherein communicating with the UE comprises: communicating with the UE based at least in part on the UE using the first duplexing mode, the method further comprising; transmitting, to the UE, an indication for the UE to switch to the second duplexing mode; and communicating with the UE based at least in part on the UE using the second duplexing mode based at least in part on transmitting the indication.

Aspect 18: The method of aspect 17, wherein the indication for the UE to switch to the second duplexing mode comprises the second configuration, a downlink control information message indicating for the UE to activate the second duplexing mode, an activation message for a bandwidth part configured for the second duplexing mode, an activation message for a sub-bandwidth part configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.

Aspect 19: The method of any of aspects 16 through 18, wherein the first configuration and the second configuration are defined per sub-bandwidth part, the method further comprising: transmitting, to the UE, an indication of a sub-bandwidth part for the UE to use for subsequent communications, wherein the sub-bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode is based at least in part on transmitting the indication of the sub-bandwidth part.

Aspect 20: The method of any of aspects 16 through 18, wherein the first configuration and the second configuration are defined per bandwidth part, the method further comprising: transmitting, to the UE, an indication of a bandwidth part for the UE to use for subsequent communications, wherein the bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode is based at least in part on transmitting the indication of the bandwidth part.

Aspect 21: The method of any of aspects 16 through 20, further comprising: transmitting, to the UE, a slot format configuration, dedicated signaling indicating for the UE to switch duplexing modes.

Aspect 22: The method of aspect 21, wherein the dedicated signaling comprises a slot format configuration, a slot format indicator in a downlink control information message, a common time division duplexing configuration for communications, a dedicated time division duplexing configuration for communications, layer one signaling, layer two signaling, or any combination thereof.

Aspect 23: The method of any of aspects 16 through 22, further comprising: transmitting, to the UE, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, wherein the first retransmission timer and the second retransmission timer are independent of the UE switching between duplexing modes.

Aspect 24: The method of any of aspects 16 through 23, wherein transmitting one or both of the first configuration or the second configuration comprises: transmitting, to the UE, one or both of a first plurality of configurations for communicating using the first duplexing mode or a second plurality of configurations for communicating using the second duplexing mode, wherein the first plurality of configurations and the second plurality of configurations are defined for a plurality of component carriers configured for the UE, the method further comprising; and transmitting, to the UE, a joint activation message for one or more of the first plurality of configurations or one or more of the second plurality of configurations, wherein communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode is based at least in part on transmitting the joint activation message.

Aspect 25: An apparatus for wireless communications at a UE, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method of any of aspects 1 through 15.

Aspect 26: An apparatus for wireless communications at a UE, comprising at least one means for performing a method of any of aspects 1 through 15.

Aspect 27: A non-transitory computer-readable medium storing code for wireless communications at a UE, the code comprising instructions executable by a processor to perform a method of any of aspects 1 through 15.

Aspect 28: An apparatus for wireless communications at a base station, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method of any of aspects 16 through 24.

Aspect 29: An apparatus for wireless communications at a base station, comprising at least one means for performing a method of any of aspects 16 through 24.

Aspect 30: A non-transitory computer-readable medium storing code for wireless communications at a base station, the code comprising instructions executable by a processor to perform a method of any of aspects 16 through 24.

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

Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications 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, as well as other systems and radio technologies not explicitly mentioned herein.

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

The various illustrative blocks and components described in connection 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. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) .

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 over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.

Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of” ) indicates an inclusive list such 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) . Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on. ”

In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label, or other subsequent reference label.

The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration, ” and not “preferred” or “advantageous over other examples. ” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

A method for wireless communications at a user equipment (UE) , comprising:

transmitting, to a base station, a capability indication of parameters supported by the UE, the capability indication comprising a capability of the UE for switching between a first duplexing mode and a second duplexing mode;

receiving, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based at least in part on transmitting the capability indication; and

communicating with the base station using one of the first duplexing mode or the second duplexing mode based at least in part on receiving the one or both of the first configuration or the second configuration.
The method of claim 1, wherein communicating with the base station comprises:

communicating with the base station using the first duplexing mode, the method further comprising:

receiving, from the base station, an indication for the UE to switch to the second duplexing mode; and

communicating with the base station using the second duplexing mode based at least in part on receiving the indication.
The method of claim 2, wherein the indication for the UE to switch to the second duplexing mode comprises the second configuration, a downlink control information message indicating to activate the second duplexing mode, an activation message for a bandwidth part configured for the second duplexing mode, an activation message for a sub-bandwidth part configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.
The method of claim 1, wherein the first configuration and the second configuration are defined per sub-bandwidth part, the method further comprising:

receiving, from the base station, an indication of a sub-bandwidth part for the UE to use for subsequent communications, wherein the sub-bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the indication of the sub-bandwidth part.
The method of claim 4, wherein the sub-bandwidth part is configured for the second duplexing mode and the first configuration comprises a semi-persistent scheduling configuration or a type two configured grant, the method further comprising:

deactivating the first configuration for the first duplexing mode based at least in part on receiving the indication of the sub-bandwidth part that is configured for the second duplexing mode and the first configuration comprising the semi-persistent scheduling configuration or the type two configured grant.
The method of claim 4, wherein the sub-bandwidth part is configured for the second duplexing mode and the first configuration comprises a type one configured grant, the method further comprising:

suspending the first configuration for the first duplexing mode based at least in part on receiving the indication of the sub-bandwidth part that is configured for the second duplexing mode and the first configuration comprising the type one configured grant.
The method of claim 1, wherein the first configuration and the second configuration are defined per bandwidth part, the method further comprising:

receiving, from the base station, an indication of a bandwidth part for the UE to use for subsequent communications, wherein the bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the indication of the bandwidth part.
The method of claim 7, wherein the bandwidth part is configured for the second duplexing mode and the first configuration comprises a semi-persistent scheduling configuration or a type two configured grant, the method further comprising:

deconfiguring the first configuration for the first duplexing mode based at least in part on receiving the indication of the bandwidth part that is configured for the second duplexing mode and the first configuration comprising the semi-persistent scheduling configuration or the type two configured grant.
The method of claim 7, wherein the bandwidth part is configured for the second duplexing mode and the first configuration comprises a type one configured grant, the method further comprising:

suspending the first configuration for the first duplexing mode based at least in part on receiving the indication of the bandwidth part that is configured for the second duplexing mode and the first configuration comprising the type one configured grant.
The method of claim 1, further comprising:

receiving, from the base station, dedicated signaling indicating for the UE to switch duplexing modes; and

switching duplexing modes based at least in part on receiving the dedicated signaling.
The method of claim 10, further comprising:

deactivating or suspending the first configuration or the second configuration based at least in part on receiving the dedicated signaling.
The method of claim 10, wherein the dedicated signaling comprises a slot format configuration, a slot format indicator in a downlink control information message, a common time division duplexing configuration for communications, a dedicated time division duplexing configuration for communications, layer one signaling, layer two signaling, or any combination thereof.
The method of claim 1, further comprising:

receiving, from the base station, an indication for the UE to switch duplexing modes from the first duplexing mode to the second duplexing mode; and

refraining from adjusting one or more hybrid automatic repeat request operations initiated for the first duplexing mode when switching to the second duplexing mode.
The method of claim 1, further comprising:

receiving, from the base station, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, wherein the first retransmission timer and the second retransmission timer are independent of the UE switching between duplexing modes.
The method of claim 1, wherein receiving one or both of the first configuration or the second configuration comprises:

receiving, from the base station, one or both of a first plurality of configurations for communicating using the first duplexing mode or a second plurality of configurations for communicating using the second duplexing mode, wherein the first plurality of configurations and the second plurality of configurations are defined for a plurality of component carriers configured for the UE, the method further comprising:

receiving, from the base station, a joint activation message for one or more of the first plurality of configurations or one or more of the second plurality of configurations, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the joint activation message.
A method for wireless communications at a base station, comprising:

receiving, from a user equipment (UE) , a capability indication of parameters supported by the UE, the capability indication comprising a capability of the UE for switching between a first duplexing mode and a second duplexing mode;

transmitting, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based at least in part on receiving the capability indication; and

communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode based at least in part on transmitting the one or both of the first configuration or the second configuration.
The method of claim 16, wherein communicating with the UE comprises:

communicating with the UE based at least in part on the UE using the first duplexing mode, the method further comprising:

transmitting, to the UE, an indication for the UE to switch to the second duplexing mode; and

communicating with the UE based at least in part on the UE using the second duplexing mode based at least in part on transmitting the indication.
The method of claim 17, wherein the indication for the UE to switch to the second duplexing mode comprises the second configuration, a downlink control information message indicating for the UE to activate the second duplexing mode, an activation message for a bandwidth part configured for the second duplexing mode, an activation message for a sub-bandwidth part configured for the second duplexing mode, a slot configuration for the second duplexing mode, or any combination thereof.
The method of claim 16, wherein the first configuration and the second configuration are defined per sub-bandwidth part, the method further comprising:

transmitting, to the UE, an indication of a sub-bandwidth part for the UE to use for subsequent communications, wherein the sub-bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode is based at least in part on transmitting the indication of the sub-bandwidth part.
The method of claim 16, wherein the first configuration and the second configuration are defined per bandwidth part, the method further comprising:

transmitting, to the UE, an indication of a bandwidth part for the UE to use for subsequent communications, wherein the bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode is based at least in part on transmitting the indication of the bandwidth part.
The method of claim 16, further comprising:

transmitting, to the UE, dedicated signaling indicating for the UE to switch duplexing modes.
The method of claim 21, wherein the dedicated signaling comprises a slot format configuration, a slot format indicator in a downlink control information message, a common time division duplexing configuration for communications, a dedicated time division duplexing configuration for communications, layer one signaling, layer two signaling, or any combination thereof.
The method of claim 16, further comprising:

transmitting, to the UE, one or both of a configuration for a first retransmission timer for the first configuration or a configuration for a second retransmission timer for the second configuration, wherein the first retransmission timer and the second retransmission timer are independent of the UE switching between duplexing modes.
The method of claim 16, wherein transmitting one or both of the first configuration or the second configuration comprises:

transmitting, to the UE, one or both of a first plurality of configurations for communicating using the first duplexing mode or a second plurality of configurations for communicating using the second duplexing mode, wherein the first plurality of configurations and the second plurality of configurations are defined for a plurality of component carriers configured for the UE, the method further comprising:

transmitting, to the UE, a joint activation message for one or more of the first plurality of configurations or one or more of the second plurality of configurations, wherein communicating with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode is based at least in part on transmitting the joint activation message.
An apparatus for wireless communications at a user equipment (UE) , comprising:

a processor;

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

transmit, to a base station, a capability indication of parameters supported by the UE, the capability indication comprising a capability of the UE for switching between a first duplexing mode and a second duplexing mode;

receive, from the base station, one or both of a first configuration for communicating using the first duplexing mode or a second configuration for communicating using the second duplexing mode, the one or both of the first configuration or the second configuration received based at least in part on transmitting the capability indication; and

communicate with the base station using one of the first duplexing mode or the second duplexing mode based at least in part on receiving the one or both of the first configuration or the second configuration.
The apparatus of claim 25, wherein the instructions to communicate with the base station are executable by the processor to cause the apparatus to:

communicate with the base station using the first duplexing mode, the method further comprising;

receive, from the base station, an indication for the UE to switch to the second duplexing mode; and

communicate with the base station using the second duplexing mode based at least in part on receiving the indication.
The apparatus of claim 25, wherein the first configuration and the second configuration are defined per sub-bandwidth part, and the instructions are further executable by the processor to cause the apparatus to:

receive, from the base station, an indication of a sub-bandwidth part for the UE to use for subsequent communications, wherein the sub-bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the indication of the sub-bandwidth part.
The apparatus of claim 25, wherein the first configuration and the second configuration are defined per bandwidth part, and the instructions are further executable by the processor to cause the apparatus to:

receive, from the base station, an indication of a bandwidth part for the UE to use for subsequent communications, wherein the bandwidth part is configured for the first duplexing mode according to the first configuration or the second duplexing mode according to the second configuration, wherein communicating with the base station using one of the first duplexing mode or the second duplexing mode is based at least in part on receiving the indication of the bandwidth part.
The apparatus of claim 25, wherein the instructions are further executable by the processor to cause the apparatus to:

receive, from the base station, dedicated signaling indicating for the UE to switch duplexing modes; and

switch duplexing modes based at least in part on receiving the dedicated signaling.
An apparatus for wireless communications at a base station, comprising:

a processor;

memory coupled with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receive, from a user equipment (UE) , a capability indication of parameters supported by the UE, the capability indication comprising a capability of the UE for switching between a first duplexing mode and a second duplexing mode;

transmit, to the UE, a first configuration for the UE to communicate using one or both of the first duplexing mode or a second configuration for the UE to communicate using the second duplexing mode, the one or both of the first configuration or the second configuration transmitted based at least in part on receiving the capability indication; and

communicate with the UE based at least in part on the UE using one of the first duplexing mode or the second duplexing mode based at least in part on transmitting the one or both of the first configuration or the second configuration.