Deferred Hybrid Automatic Repeat Request (HARQ) Feedback for Carrier Switching

Abstract

The present disclosure provides systems, methods, and apparatus for deferred hybrid automatic repeat request (HARQ) feedback for carrier switching. Certain aspects described herein enable a user equipment (UE) to transmit, drop, refrain from transmitting, or a combination thereof, deferred HARQ feedback in various communication scenarios that require the use of carrier switching. The UE is enabled to continue to defer deferred HARQ feedback, drop deferred HARQ feedback, transmit non-deferred HARQ feedback, drop all HARQ feedback, or process deferred HARQ feedback using another technique described herein when carrier switching is configured for the UE.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS)

[0001] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 298,058, filed on January 10, 2022, entitled "DEFERRED HYBRID AUTOMATIC REPEAT REQUEST (HARQ) FEEDBACK FOR CARRIER SWITCHING", and U.S. Non-Provisional Patent Application No. 18 / 067,486, filed on December 16, 2022, entitled "DEFERRED HYBRID AUTOMATIC REPEAT REQUEST (HARQ) FEEDBACK FOR CARRIER SWITCHING", which are expressly incorporated by reference into this specification.

[0002] Aspects of the present disclosure relate generally to wireless communications and techniques for deferred hybrid automatic repeat request (HARQ) feedback for carrier switching.

[0003] 2. Description of Related Art

[0003] Wireless communication systems have been widely deployed to provide various telecommunication services, such as telephone, video, data, messaging, and broadcast. A typical wireless communication system may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0004] A wireless network may include one or more base stations that support communication for a single user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink and uplink communications. "Downlink" (or "DL") refers to the communication link from a base station to a UE, and "uplink" (or "UL") refers to the communication link from a UE to a base station.

[0005]

[0005] These multiple access technologies are adopted in various telecommunication standards to provide a common protocol that allows different UEs to communicate at a municipal, national, regional, or global level. New Radio (NR), sometimes referred to as 5G, is a set of extensions to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Spread OFDM (DFT-s-OFDM)) on the uplink, and better integrating with other open standards by supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. Summary of the Invention

[0006]

[0006] The systems, methods, and devices disclosed herein each have several inventive aspects, no single aspect of which is solely responsible for the desirable attributes disclosed herein.

[0007]

[0007] One innovative aspect of the subject matter described in this disclosure may be embodied in a method performed by a wireless communications device. The method may include receiving a downlink communication on a first component carrier. The method may include dropping deferred hybrid automatic repeat request (HARQ) feedback associated with the downlink communication on a second component carrier in relation to the deferred HARQ feedback exceeding an available size in uplink resources.

[0008] In some aspects, the method may include performing a carrier switch from a first component carrier to a second component carrier after receiving a downlink communication and prior to uplink resources on the second component carrier in association with a quasi-static physical uplink control channel (PUCCH) cell pattern. In some aspects, the method may include transmitting, in the uplink resources, non-deferred HARQ feedback associated with another downlink communication. In some aspects, the method may include dropping at least a subset of the multiple repetitions of the deferred HARQ feedback on the second component carrier.

[0009] Another innovative aspect of the subject matter described in this disclosure may be implemented in a wireless communication device. The wireless communication device may include one or more interfaces configured to acquire downlink communication on a first component carrier. The wireless communication device may include a processing system configured to drop deferred HARQ feedback associated with the downlink communication on a second component carrier in association with the deferred HARQ feedback exceeding an available size in uplink resources.

[0010] Another inventive aspect of the subject matter described in this disclosure may be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to receive a downlink communication and before an uplink resource on a second component carrier. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to drop a deferred HARQ feedback associated with the downlink communication on the second component carrier in association with the deferred HARQ feedback exceeding an available size in the uplink resource.

[0011] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus may include means for receiving a downlink communication on a first component carrier. The apparatus may include means for dropping a deferred HARQ feedback associated with the downlink communication on a second component carrier in association with the deferred HARQ feedback exceeding an available size in uplink resources.

[0012] Another innovative aspect of the subject matter described in this disclosure may be embodied in a method performed by a wireless communications device. The method may include receiving a downlink communication on a first component carrier. The method may include transmitting deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource occurs on the second component carrier. In some aspects, the deferred HARQ feedback is transmitted in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0013] In some aspects, the method may include performing a carrier switch from a first component carrier to a second component carrier after receiving a downlink communication and before a second uplink resource on a second component carrier in association with a quasi-static PUCCH cell pattern. In some aspects, the carrier switch is performed before the first uplink resource and the second uplink resource. In some aspects, the method may include transmitting deferred HARQ feedback in the second uplink resource based at least in part on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in the first uplink resource associated with the deferred HARQ feedback. In some aspects, the method may include transmitting in the uplink resource a non-deferred HARQ feedback associated with another downlink communication. In some aspects, the method may include transmitting at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resource on the second component carrier.

[0014] Another innovative aspect of the subject matter described in this disclosure may be implemented in a wireless communications device. The wireless communications device may include one or more interfaces configured to obtain a downlink communication on a first component carrier. The method may include one or more interfaces configured to output a deferred HARQ feedback associated with the downlink communication for transmission in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource occurs on the second component carrier. In some aspects, the deferred HARQ feedback is transmitted in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0015] Another inventive aspect of the subject matter described in this disclosure may be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to receive a downlink communication on a first component carrier. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to transmit a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource occurs on the second component carrier. In some aspects, the deferred HARQ feedback is transmitted in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0016] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus may include means for receiving a downlink communication on a first component carrier. The apparatus may include means for transmitting a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource occurs on the second component carrier. In some aspects, the deferred HARQ feedback is transmitted in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0017] Another innovative aspect of the subject matter described in this disclosure may be embodied in a method performed by a wireless communications device. The method may include receiving a downlink communication on a first component carrier. The method may include transmitting deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource.

[0018] In some aspects, the method may include performing a first carrier switch from the first component carrier to the second component carrier after receiving the downlink communication and before the first uplink resource on the second component carrier in association with a quasi-static PUCCH cell pattern, and performing a second carrier switch from the second component carrier to the first component carrier after the first uplink resource on the second component carrier and before the second uplink resource on the first component carrier in association with the quasi-static PUCCH cell pattern. In some aspects, the method may include transmitting another subset of the multiple repetitions of the deferred HARQ feedback in a third uplink resource on the first component carrier that appears after the second uplink resource. In some aspects, the method may include transmitting, together with the deferred HARQ feedback, a non-deferred HARQ feedback associated with another downlink communication in at least one of the first uplink resource on the second component carrier or the second uplink resource on the first component carrier.

[0019] Another innovative aspect of the subject matter described in this disclosure may be implemented in a wireless communication device. The wireless communication device may include one or more interfaces configured to obtain a downlink communication on a first component carrier. The method may include one or more interfaces configured to output, in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource, a deferred HARQ feedback associated with the downlink communication for transmission in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0020] Another inventive aspect of the subject matter described in this disclosure may be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to receive a downlink communication on a first component carrier. The one or more instructions, when executed by the one or more processors of the wireless communication device, may cause the one or more processors to transmit a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that appears after the first uplink resource on the second component carrier in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0021] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus may include means for receiving a downlink communication on a first component carrier. The apparatus may include means for transmitting, in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource, a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that appears after the first uplink resource on the second component carrier.

[0022] Another innovative aspect of the subject matter described in this disclosure may be embodied in a method performed by a wireless communications device. The method may include transmitting a downlink communication on a first component carrier. The method may include receiving deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0023]

[0023] In some aspects, the method may include receiving, in a first uplink resource, a non-deferred HARQ feedback associated with another downlink communication. In some aspects, the method may include receiving, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with the second downlink communication. In some aspects, the method may include receiving, in a second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback, a non-deferred HARQ feedback associated with a third downlink communication. In some aspects, the method may include receiving, in a second uplink resource on a second component carrier, at least a subset of the multiple repetitions of the deferred HARQ feedback.

[0024] Another innovative aspect of the subject matter described in this disclosure may be implemented in a wireless communication device. The wireless communication device may include one or more interfaces configured to output a downlink communication for transmission on a first component carrier. The wireless communication device may include one or more interfaces configured to obtain deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0025] Another inventive aspect of the subject matter described in this disclosure may be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to transmit a downlink communication on a first component carrier. The one or more instructions, when executed by the one or more processors of the wireless communication device, may cause the one or more processors to receive deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0026] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus may include means for transmitting a downlink communication on a first component carrier. The apparatus may include means for receiving deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0027] Another innovative aspect of the subject matter described in this disclosure may be embodied in a method performed by a wireless communications device that may include receiving, in a second uplink resource on a second component carrier that occurs after a first uplink resource on the second component carrier, deferred HARQ feedback associated with a downlink communication.

[0028] In some aspects, the method may include receiving, in at least one of a first uplink resource on the second component carrier or a second uplink resource on the first component carrier together with the deferred HARQ feedback, a non-deferred HARQ feedback associated with another downlink communication. In some aspects, the method may include receiving, in the second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback, a non-deferred HARQ feedback associated with a third downlink communication. In some aspects, the method may include receiving at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resource on the first component carrier.

[0029] Another innovative aspect of the subject matter described in this disclosure may be implemented in a wireless communication device. The wireless communication device may include one or more interfaces configured to output a downlink communication for transmission on a first component carrier. The wireless communication device may include one or more interfaces configured to obtain deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0030] Another inventive aspect of the subject matter described in this disclosure may be implemented in a non-transitory computer-readable medium. The non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of the wireless communication device, may cause the one or more processors to transmit a downlink communication on a first component carrier. The one or more instructions, when executed by the one or more processors of the wireless communication device, may cause the one or more processors to receive deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0031] Another inventive aspect of the subject matter described in this disclosure may be implemented in an apparatus for wireless communication. The apparatus may include means for transmitting a downlink communication on a first component carrier. The apparatus may include means for receiving deferred HARQ feedback associated with the downlink communication in a first uplink resource on a second component carrier that occurs after a first uplink resource on a second component carrier.

[0032]

[0032] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, or processing system as fully described in this specification with reference to and illustrated by the accompanying drawings.

[0033]

[0033] Details of one or more implementations of the subject matter described in this disclosure are set forth in the accompanying drawings and description. Other features, aspects, and advantages will become apparent from the description, drawings, and claims. Please note that the relative dimensions of the following figures may not be drawn to scale. [Brief description of the drawings]

[0034] [Figure 1]

[0034] FIG. 1 is a diagram illustrating an example of a wireless network. [Diagram 2]

[0035] FIG. 1 illustrates an example of a base station (BS) in communication with a user equipment (UE) in a wireless network. [Diagram 3]

[0036] FIG. 1 illustrates an example of an open radio access network (O-RAN) architecture. [Figure 4]

[0037] FIG. 1 illustrates an example of postponed hybrid automatic repeat request (HARQ) feedback carrier switching. [Diagram 5]

[0038] FIG. 13 is a diagram illustrating an example of carrier switching. [Figure 6]

[0039] FIG. 1 illustrates an example associated with deferred hybrid automatic repeat request (HARQ) feedback for carrier switching. [Figure 7] FIG. 1 illustrates an example associated with deferred hybrid automatic repeat request (HARQ) feedback for carrier switching. [Figure 8] FIG. 1 illustrates an example associated with deferred hybrid automatic repeat request (HARQ) feedback for carrier switching. [Figure 9]

[0040] FIG. 1 illustrates an example process performed, for example, by a UE. [Figure 10] FIG. 1 illustrates an example process performed, for example, by a UE. [Figure 11] FIG. 1 illustrates an example process performed, for example, by a UE. [Figure 12]

[0041] FIG. 1 illustrates an exemplary process performed, for example, by a BS. [Figure 13] FIG. 1 illustrates an exemplary process performed, for example, by a BS. [Figure 14]

[0042] 1 is a diagram of an example apparatus for wireless communication. [Figure 15] 1 is a diagram of an example apparatus for wireless communication. [Figure 16] 1 is a diagram of an example apparatus for wireless communication. [Figure 17] 1 is a diagram of an example apparatus for wireless communication. [Figure 18] 1 is a diagram of an example apparatus for wireless communication.

[0035]

[0043] Like reference numbers and designations in the various drawings indicate like elements. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036]

[0044] The following description is directed to several implementations for the purpose of describing the inventive aspects of the present disclosure. However, those skilled in the art will readily recognize that the teachings herein can be applied in many different ways. Some of the examples in the present disclosure are based on wireless and wired local area network (LAN) communications according to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 wireless standard, the IEEE 802.3 Ethernet standard, and the IEEE 1901 Power Line Communication (PLC) standard.However, the described implementations may include, but are not limited to, the IEEE 802.11 standard, the Bluetooth standard, code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), Global System for Mobile communications (GSM), GSM / General Packet Radio Service (GPRS), Enhanced Data GSM Environment (EDGE), Terrestrial Trunked Radio (TETRA), Wideband-CDMA (W-CDMA), Evolution Data Optimized (EV-DO), 1xEV-DO, EV-DO Rev A, EV-DO Rev B, High Speed ​​Packet Access (HSPA), High Speed ​​Downlink Packet Access (HSDPA), High Speed ​​Uplink Packet Access (SUPA), Evolved High Speed ​​Packet Access (HSPA+), Long Term Evolution (LGE), and other standards. The present invention may be implemented in any device, system, or network capable of transmitting and receiving radio frequency signals in accordance with any of the wireless communications standards, including any of the known signals used to communicate within wireless, cellular, or internet of things (IOT) networks, such as systems utilizing 3G, 4G, 5G technologies, or further implementations thereof.

[0037]

[0045] In a time division duplexing (TDD) configuration, collisions may occur between downlink (DL) and uplink (UL) communications scheduled using semi-persistent scheduling (SPS) due to a change in slot format. For example, a change in slot format may occur for a TDD slot when the TDD slot is changed from an uplink slot format to a downlink slot format, resulting in an uplink hybrid automatic repeat request (HARQ) feedback transmission colliding (overlapping in the time domain, overlapping in the frequency domain, or both) with downlink resources in the TDD slot. Furthermore, if the HARQ feedback transmission is postponed due to a collision, a quasi-static carrier switch from the first component carrier to the second component carrier may result in an inability to transmit deferred HARQ feedback on the second component carrier if no HARQ feedback resources are scheduled on the second component carrier or if insufficient HARQ feedback resources are scheduled on the second component carrier.

[0038]

[0046] Certain aspects described herein enable a user equipment (UE) to transmit, drop, refrain from transmitting, or a combination thereof, deferred HARQ feedback in various communication scenarios that require the use of carrier switching. Thus, the UE may be enabled to continue to defer deferred HARQ feedback, drop deferred HARQ feedback, transmit non-deferred HARQ feedback, drop all HARQ feedback, or process deferred HARQ feedback using another technique described herein when carrier switching is configured for the UE.

[0039]

[0047] Particular implementations of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages: Some aspects described herein may enable a UE to process deferred HARQ feedback that may not be included within a target HARQ feedback resource on a component carrier when a carrier switch is configured for the UE. Some aspects described herein may enable a UE to drop deferred HARQ feedback, which may reduce UE complexity (e.g., it may reduce UE hardware complexity by requiring fewer memory resources to store or buffer the deferred HARQ feedback, or it may reduce UE programming complexity because logic for further deferral of the deferred HARQ feedback is not required, or both) and may reduce use of UE memory resources that would otherwise be used to store the deferred HARQ feedback at the UE. Some aspects described herein may enable a UE to switch (or not switch) between component carriers and subsequently defer deferred HARQ feedback to a subsequent resource, which may enable the UE to provide the deferred HARQ feedback to a network entity, such as a base station. This may increase the reliability of wireless communications for the UE.

[0040]

[0048] 1 is a diagram illustrating an example of a wireless network 100. The wireless network 100 may be or may include an element of a 5G (e.g., NR) network or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. The wireless network 100 may include one or more network entities or wireless communication devices, such as one or more base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d), user equipment (UE) 120 or more UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), or other network entities. The base station 110 is an example of a network entity that communicates with the UE 120. The base stations 110 (sometimes referred to as BSs) may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, or transmission reception points (TRPs). Each base station 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​a base station 110 or a base station subsystem serving this coverage area, depending on the context in which the term is used.

[0041]

[0049] A base station 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a few kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 that have an association with the femto cell (e.g., UEs 120 in a closed subscriber group (CSG)). A base station 110 for a macro cell may be referred to as a macro base station. A base station 110 for a pico cell may be referred to as a pico base station. A base station 110 for a femto cell may be referred to as a femto base station or a home base station. 1, BS 110a may be a macro base station for a macro cell 102a, BS 110b may be a pico base station for a pico cell 102b, and BS 110c may be a femto base station for a femto cell 102c. A base station may support one or multiple (e.g., three) cells.

[0042]

[0050] In some examples, the cells may not necessarily be fixed and the geographic area of ​​the cells may move according to the location of the base station 110 that is mobile (e.g., a mobile base station). In some examples, the base stations 110 may be interconnected to each other or to one or more other base stations 110 or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0043]

[0051] The wireless network 100 may include one or more relay stations. A relay station is an entity that can receive a data transmission from an upstream station (e.g., a base station 110 or a UE 120) and send the data transmission to a downstream station (e.g., a UE 120 or a base station 110). A relay station may be a UE 120 that can relay a transmission for another UE 120. In the example shown in FIG. 1, a BS 110d (e.g., a relay base station) may communicate with a BS 110a (e.g., a macro base station) and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A base station 110 that relays communication may be referred to as a relay station, a relay base station, or a relay.

[0044]

[0052] The wireless network 100 may be a heterogeneous network including different types of base stations 110, such as macro base stations, pico base stations, femto base stations, or relay base stations. These different types of base stations 110 may have different transmit power levels, different coverage areas, or different susceptibility to interference within the wireless network 100. For example, a macro base station may have a high transmit power level (e.g., 5-40 Watts), whereas the pico, femto, and relay base stations may have a lower transmit power level (e.g., 0.1-2 Watts).

[0045]

[0053] A network controller 130 may be coupled to or in communication with a set of base stations 110 and may provide coordination and control for these base stations 110. The network controller 130 may communicate with the base stations 110 via backhaul communication links. The base stations 110 may communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0046]

[0054] The UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be fixed or mobile. The UEs 120 may include, for example, an access terminal, a terminal, a mobile station, or a subscriber unit. The UEs 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, or a smart bracelet)), an entertainment device (e.g., a music device, a video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate over a wireless or wired medium.

[0047]

[0055] Some UEs 120 may be considered as machine-type communication (MTC) UEs or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs or eMTC UEs may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, or a location tag that may communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. The UE 120 may be included within a housing that houses components of the UE 120, such as a processor component or a memory component. In some embodiments, the processor component and the memory component may be coupled to each other. For example, the processor component (e.g., one or more processors) and the memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, or electrically coupled.

[0048]

[0056] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a particular RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology or air interface. A frequency may be referred to as a carrier or frequency channel. To avoid interference between wireless networks of different RATs, each frequency may support a single RAT in a given geographic area. In some cases, NR networks or 5G RAT networks may be deployed.

[0049]

[0057] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using the base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, vehicle-to-everything (V2X) protocols (which may include, e.g., device-to-device (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), or mesh networks. In such examples, the UEs 120 may perform scheduling operations, resource selection operations, or other operations described elsewhere herein as being performed by the base station 110.

[0050]

[0058] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided by frequency or wavelength into various classes, bands, or channels. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified with frequency range designations FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that FR1 is often referred to (interchangeably) as a "sub-6 GHz" band in various documents and papers, although a portion of FR1 is higher than 6 GHz. A similar nomenclature issue may arise with respect to FR2, which is often referred to (interchangeably) as a "millimeter wave" band in documents and papers, even though it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as a "millimeter wave" band by the International Telecommunications Union (ITU).

[0051]

[0059] Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified operating bands for these mid-band frequencies as a frequency range designated FR3 (7.125 GHz to 24.25 GHz). Frequency bands that fall within FR3 may inherit FR1 or FR2 characteristics, and thus may effectively extend the features of FR1 or FR2 to the mid-band frequencies. Additionally, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency ranges designated FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0052]

[0060] With these examples in mind, it should be understood that unless otherwise specified, the term "sub-6 GHz" as used herein may broadly refer to frequencies that may be below 6 GHz, may be within FR1, or may include mid-band frequencies. Additionally, unless otherwise specified, it should be understood that the term "millimeter wave" as used herein may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, or FR5, or may be within the EHF band. The frequencies included within these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, or FR5) may be modified, and it is contemplated that the techniques described herein are applicable to those modified frequency ranges.

[0053]

[0061] In some aspects, the UE 120 may include a communications manager 140. As described in more detail elsewhere herein, the communications manager 140 may receive a downlink communication on a first component carrier and drop a deferred HARQ feedback associated with the downlink communication on a second component carrier in connection with the deferred HARQ feedback exceeding an available size in uplink resources. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0054]

[0062] As described in more detail elsewhere herein, the communications manager 140 may receive a downlink communication on a first component carrier and transmit deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource occurs on the second component carrier. In some aspects, the deferred HARQ feedback is transmitted in the second uplink resource in association with the deferred HARQ feedback crossing a threshold in the first uplink resource. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0055]

[0063] As described in more detail elsewhere herein, the communications manager 140 may receive a downlink communication on a first component carrier and transmit deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0056]

[0064] In some aspects, the base station 110 may include a communications manager 150. As described in more detail elsewhere herein, the communications manager 150 may transmit a downlink communication on a first component carrier and receive deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.

[0057]

[0065] As described in more detail elsewhere herein, the communications manager 150 may transmit a downlink communication on a first component carrier and receive deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier. Additionally or alternatively, the communications manager 150 may perform one or more other operations described herein.

[0058]

[0066] 2 illustrates an example base station 200 in communication with a UE 120 in wireless network 100. The base station 110 may be equipped with a set of antennas 234a through 234t, such as T antennas, where T≧1. The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas, where R≧1.

[0059]

[0067] At the base station 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may use one or more channel quality indicators (CQIs) received from the UE 120 to select one or more modulation and coding schemes (MCSs) for the UE 120. The base station 110 may process (e.g., code and modulate) data for the UE 120 using the MCS selected for the UE 120 and provide data symbols to the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, or higher layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for a reference signal (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and a synchronization signal (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, overhead symbols, or reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), denoted as modems 232a through 232t. For example, each output symbol stream may be provided to a modulator component (denoted as MOD) of modem 232.Each modem 232 may process a respective output symbol stream using a respective modulator component (e.g., for OFDM) to obtain an output sample stream. Each modem 232 may further process (e.g., convert to analog, amplify, filter, or upconvert) the output sample stream using a respective modulator component to obtain a downlink signal. Modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), depicted as antennas 234a through 234t.

[0060]

[0068] At the UE 120, the set of antennas 252 (depicted as antennas 252a through 252r) may receive downlink signals from the base station 110 or other base stations 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), depicted as modems 254a through 254r. For example, each received signal may be provided to a demodulator component (depicted as DEMOD) of the modems 254. Each modem 254 may condition (e.g., filter, amplify, downconvert, or digitize) the received signal using a respective demodulator component to obtain input samples. Each modem 254 may further process the input samples (e.g., for OFDM) using the demodulator component to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modems 254, perform MIMO detection on the received symbols, if applicable, and provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, or a CQI parameter, among other examples. In some examples, one or more components of the UE 120 may be included in a housing.

[0061]

[0069] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base stations 110 via the communication unit 294.

[0062]

[0070] One or more antennas (e.g., antennas 234a-t or antennas 252a-r) may include or be contained within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, antenna group, set of antenna elements, or antenna array may include (in a single housing or multiple housings) one or more antenna elements, a set of coplanar antenna elements, a set of non-coplanar antenna elements, or one or more antenna elements coupled to one or more transmitting or receiving components, such as one or more components of FIG.

[0063]

[0071] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, or CQI) from the controller / processor 280. The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some embodiments, the modem 254 of the UE 120 may include a modulator and a demodulator. In some embodiments, the UE 120 includes a transceiver. The transceiver may include any combination of the antennas 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to implement aspects of any of the processes described herein.

[0064]

[0072] At the base station 110, uplink signals from the UE 120 or other UEs may be received by an antenna 234, processed by a modem 232 (e.g., a demodulator component, denoted as DEMOD, of the modem 232), detected by a MIMO detector 236, if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink or uplink communication. In some embodiments, the modem 232 of the base station 110 may include a modulator and a demodulator. In some embodiments, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the processes described herein.

[0065]

[0073] In some aspects, the controller / processor 280 may be a component of a processing system. A processing system may generally be a system or set of machines or components that receives inputs, processes the inputs, and generates a set of outputs (e.g., that may be passed to other systems or components of the UE 120). For example, the processing system of the UE 120 may be a system that includes various other components or subcomponents of the UE 120.

[0066]

[0074] The processing system of the UE 120 may interface with one or more other components of the UE 120, process information (such as input or signals) received from one or more other components, or output information to one or more other components. For example, a chip or modem of the UE 120 may include a processing system, a first interface for receiving or acquiring information, and a second interface for outputting, transmitting, or providing information. In some examples, the first interface may be an interface between the processing system of the chip or modem and a receiver, such that the UE 120 receives information or signal input, and the information may be passed to the processing system. In some examples, the second interface may be an interface between the processing system of the chip or modem and a transmitter, such that the UE 120 transmits information output from the chip or modem. One skilled in the art will readily recognize that the second interface may also acquire or receive information or signal input, and the first interface may also output, transmit, or provide information.

[0067]

[0075] In some aspects, the controller / processor 240 may be a component of a processing system. A processing system may generally be a system or set of machines or components that receives inputs, processes the inputs, and generates a set of outputs (which may be passed on, for example, to other systems or components of the base station 110). For example, the processing system of the base station 110 may be a system that includes various other components or subcomponents of the base station 110.

[0068]

[0076] The processing system of the base station 110 may interface with one or more other components of the base station 110, process information (such as input or signals) received from one or more other components, or output information to one or more other components. For example, a chip or modem of the base station 110 may include a processing system, a first interface for receiving or acquiring information, and a second interface for outputting, transmitting, or providing information. In some examples, the first interface may be an interface between the processing system of the chip or modem and a receiver, such that the base station 110 receives information or signal input, and the information may be passed to the processing system. In some examples, the second interface may be an interface between the processing system of the chip or modem and a transmitter, such that the base station 110 transmits information output from the chip or modem. One skilled in the art will readily recognize that the second interface may also acquire or receive information or signal input, and the first interface may also output, transmit, or provide information.

[0069]

[0077] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, or any other component of FIG. 2 may perform one or more techniques associated with deferred HARQ feedback for carrier switching, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, or any other component (or combination of components) of FIG. 2 may perform or direct the operation of, for example, process 900 of FIG. 9, process 1000 of FIG. 10, process 1100 of FIG. 11, process 1200 of FIG. 12, process 1300 of FIG. 13, or other processes as described herein. The memory 242 and the memory 282 may store data and program codes for the base station 110 and the UE 120, respectively. In some examples, the memory 242 and the memory 282 may include a non-transitory computer-readable medium that stores one or more instructions (e.g., code or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., immediately or after being compiled, converted, or interpreted) by one or more processors of the base station 110 or the UE 120, may cause the one or more processors, the UE 120, or the base station 110 to perform or direct operations, such as process 900 of Figure 9, process 1000 of Figure 10, process 1100 of Figure 11, process 1200 of Figure 12, process 1300 of Figure 13, or other processes as described herein. In some examples, executing the instructions may include executing the instructions, converting the instructions, compiling the instructions, or interpreting the instructions.

[0070]

[0078] In some aspects, the UE 120 includes means for receiving the downlink communication on the first component carrier, or means for dropping the deferred HARQ feedback associated with the downlink communication on the second component carrier in association with the deferred HARQ feedback exceeding the available size in the uplink resources, or a combination thereof. The means by which the UE 120 performs the operations described herein may include, for example, one or more of the communications manager 140, the antennas 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0071]

[0079] In some aspects, the UE 120 includes means for receiving the downlink communication on a first component carrier, means for transmitting deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource, or a combination thereof. In some aspects, the first uplink resource occurs on the second component carrier. In some aspects, the UE 120 includes means for transmitting deferred HARQ feedback in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource. Means for the UE 120 to perform the operations described herein may include, for example, one or more of the communications manager 140, the antennas 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0072]

[0080] In some aspects, the UE 120 includes means for receiving the downlink communication on the first component carrier, means for transmitting deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource, or a combination thereof. The means by which the UE 120 performs the operations described herein may include, for example, one or more of the communications manager 140, the antennas 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0073]

[0081] In some aspects, the base station 110 includes means for transmitting a downlink communication on a first component carrier, means for receiving a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier, or a combination thereof. The means by which the base station 110 performs the operations described herein may include, for example, one or more of the communications manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antennas 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.

[0074]

[0082] In some aspects, the base station 110 includes means for transmitting a downlink communication on a first component carrier, means for receiving a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier, or a combination thereof. The means by which the base station 110 performs the operations described herein may include, for example, one or more of the communications manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antennas 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.

[0075]

[0083] 2 are shown as separate components, the functionality described with respect to the blocks may be implemented in a single hardware, software, or combination component, or in various combinations of components. For example, functionality described with respect to transmit processor 264, receive processor 258, TX MIMO processor 266, or another processor may be performed by or under the control of controller / processor 280.

[0076]

[0084] FIG. 3 illustrates an example of an open radio access network (O-RAN) architecture 300. As illustrated in FIG. 3, the O-RAN architecture may include, among other examples, a network entity or node such as a control unit (CU) 310 that communicates with a core network 320 via a backhaul link and with one or more DUs 330 and one or more RUs 340. The CU 310 may communicate with one or more DUs 330 via respective midhaul links. The DUs 330 may each communicate with one or more RUs 340 via respective fronthaul links, and the RUs 340 may each communicate with a respective UE 120 via a radio frequency (RF) access link. The DUs 330 and RUs 340 may also be referred to as O-RAN DUs (O-DUs) 330 and O-RAN RUs (O-RUs) 340, respectively.

[0077]

[0085] In some aspects, the DU 330 and the RU 340 may be implemented according to a functional split architecture in which the functionality of a network entity or network node, such as the base station 110 (e.g., eNB or gNB), is provided by the DU 330 and one or more RUs 340 communicating over a fronthaul link. Thus, as described herein, the base station 110 may include the DU 330 and one or more RUs 340, which may be co-located or geographically distributed. In some aspects, the DU 330 and associated RUs 340 may communicate over the fronthaul link to exchange real-time control plane information over a lower layer split (LLS) control plane (LLS-C) interface, to exchange non-real-time management information over an LLS management plane (LLS-M) interface, or to exchange user plane information over an LLS user plane (LLS-U) interface.

[0078]

[0086] Thus, the DU 330 may correspond to a logical unit including one or more base station functions for controlling the operation of one or more RUs 340. For example, in some aspects, the DU 330 may host a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (e.g., forward error correction (FEC) encoding and decoding, scrambling, or modulation and demodulation) based on a lower layer functional division. Higher layer control functions such as packet data convergence protocol (PDCP), radio resource control (RRC), or service data adaptation protocol (SDAP) may be hosted by the CU 310. The RU(s) 340 controlled by the DU 330 may correspond to logical nodes hosting RF processing functions and low PHY layer functions (e.g., fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, or physical random access channel (PRACH) extraction and filtering) based on the lower layer functional division. Thus, in an O-RAN architecture, the RU(s) 340 handle all over the air (OTA) communication with the UE 120, and real-time and non-real-time aspects of the control and user plane communication with the RU(s) 340 are controlled by the corresponding DU 330, which allows the DU(s) 330 and CU 310 to be implemented in a cloud-based RAN architecture.

[0079]

[0087] Furthermore, the base station 110 may be implemented as a monolithic base station or as a separate base station including the CU 310, one or more DUs 330, one or more RUs 340, or a combination thereof. In some aspects, the CU 310, the DU 330, the RU 340, or a combination thereof may be implemented by one or more network entities, one or more network controllers 130, one or more network nodes, or a combination thereof.

[0080]

[0088] FIG. 4 illustrates an example 400 of deferred HARQ feedback. The example 400 may include, among other examples, communication between the UE 120 and the base station 110 described with respect to FIG. 1 and FIG. 2, or communication between the UE 120 and other types of wireless communication devices (including network entities or notes, such as the DU 330, RU 340, or CU 310 described with respect to FIG. 3). As illustrated in FIG. 4, the base station 110 and the UE 120 may communicate within one or more slots in a wireless network, such as the wireless network 100. For example, the base station 110 and the UE 120 may communicate within one or more of slots 0-9. However, the base station 110 and the UE 120 may communicate over a different amount of slots. Additionally, the UE 120 may communicate with another network entity or network node, such as the CU 310, the DU 330, the RU 340, or another network entity, within one or more of the slots. Additionally or alternatively, the base station 110 may be implemented by or may include one or more of the CU 310, DU 330, RU 340, or another network entity described with respect to FIG. 3 or elsewhere herein.

[0081]

[0089] One or more of slots 0-9 may be configured or scheduled using a slot format, such as a downlink slot format (slots configured or scheduled for downlink transmissions), an uplink slot format (slots configured or scheduled for uplink transmissions), or a flexible slot format (slots enabled to be dynamically configured or scheduled for uplink or downlink transmissions), among other examples. In some aspects, one or more of slots 0-9 may be configured or scheduled using a slot format in which the slot includes multiple types of symbols. For example, the slot may be configured or scheduled using a slot format that provides for one or more downlink symbols in the slot, one or more uplink symbols in the slot, one or more flexible symbols in the slot, or a combination thereof.

[0082]

[0090] The slot formats may be configured or scheduled in a TDD manner where different slots have slot format types. For example, slots 0-4 may be configured or scheduled using a first slot format (slot format 1), slots 5-9 may be scheduled using a second slot format (slot format 2), etc. Furthermore, wireless network 100 may be configured to support or allow for the changing of slot formats where the slot formats of the slots may be dynamically changed.

[0083]

[0091] 4, base station 110 (or another network entity described herein) may perform a downlink transmission in a slot (e.g., slot 0) configured or scheduled with a downlink slot format (or a slot format that includes one or more downlink symbols). At 404, UE 120 may be configured, instructed, or scheduled to provide HARQ feedback for a downlink transmission in a slot (e.g., slot 1) configured or scheduled with an uplink slot format (or a slot format that includes one or more uplink symbols).

[0084]

[0092] The HARQ feedback may include an acknowledgement (ACK) of the downlink transmission or a negative ACK (NACK) for the downlink transmission. An ACK may indicate that the downlink transmission was successfully received and decoded by the UE 120. A NACK may indicate that the reception, decoding, or a combination thereof for the downlink transmission was not successful by the UE 120. In some aspects, the base station 110 may perform a retransmission of all or a portion of the downlink transmission based on receiving a NACK from the UE 120. In this manner, the UE 120 may receive the retransmission and retry decoding the downlink transmission, which may increase the reliability of wireless communications within the wireless network 100.

[0085]

[0093] At 406, a slot format change may occur where base station 110 and UE 120 switch from a first slot format (slot format 1) to a second slot format (slot format 2). The slot format change may be indicated (e.g., dynamically or semi-statically) by base station 110 to UE 120. At 408, base station 110 may transmit another downlink transmission to UE 120. For example, base station 110 may transmit another downlink transmission to UE 120 in slot 5 after the slot format change.

[0086]

[0094] As shown at 410 in FIG. 4, in some cases, a collision may occur between the transmission of HARQ feedback and downlink resources. In other words, the HARQ feedback may be scheduled to be transmitted in a slot or symbol configured or scheduled with a downlink slot format. This may occur, for example, when the HARQ feedback is configured or scheduled to be transmitted semi-statically and due to a change in slot format. For example, the UE 102 may be semi-statically scheduled or configured to transmit HARQ feedback in a symbol in slot 6 that has changed from an uplink symbol according to a first slot format (slot format 1) to a downlink symbol according to a second slot format (slot format 2). As a result, a collision occurs (the HARQ feedback transmission collides with the downlink symbol in slot 6) because the symbol in slot 6 is no longer available for uplink transmission of the HARQ feedback.

[0087]

[0095] As shown at 412 in FIG. 4, in some cases, in case of a collision between the HARQ feedback and downlink resource e (e.g., downlink symbol), UE 120 may postpone transmission of HARQ feedback to a subsequent slot where physical uplink control channel (PUCCH) resources are available. In some cases, UE 120 may postpone transmission of HARQ feedback to the first available PUCCH resource. For example, UE 120 may identify the first available PUCCH resource in the next slot (slot 7) for transmission of HARQ feedback). In some cases, UE 120 may postpone transmission of HARQ feedback to another available PUCCH resource. In this way, UE 120 is still allowed to transmit HARQ feedback to base station 110, which may increase reliability in wireless network 100.

[0088]

[0096] FIG. 5 illustrates an example 500 of carrier switching. The example 500 may include, among other examples, communication between the UE 120 and the base station 110 described with respect to FIG. 1 and FIG. 2, or communication between the UE 120 and other types of wireless communication devices (including network entities or notes, such as the DU 330, RU 340, or CU 310 described with respect to FIG. 3). As illustrated in FIG. 5, the base station 110 and the UE 120 may communicate within one or more slots within a wireless network, such as the wireless network 100. For example, the base station 110 and the UE 120 may communicate within one or more of slots 0-9. However, the base station 110 and the UE 120 may communicate over a different amount of slots. Additionally, the UE 120 may communicate with another network entity or network node, such as the CU 310, the DU 330, the RU 340, or another network entity, within one or more of the slots. Additionally or alternatively, the base station 110 may be implemented by or may include one or more of the CU 310, DU 330, RU 340, or another network entity described with respect to FIG. 3 or elsewhere herein.

[0089]

[0097] 5, the UE 120 and the base station 110 may communicate on multiple component carriers, such as CC0 and CC1. However, the UE 120 and the base station 110 may communicate on different amounts of component carriers. A component carrier may include a subset of a frequency range of a bandwidth part (BWP) allocated for communication between the UE 120 and the base station 110. In some cases, multiple component carriers may be included in the same BWP or in different BWPs.

[0090]

[0098] As further shown in FIG. 5, carrier switching between component carriers may be supported and enabled for UE 120. Carrier switching may include PUCCH carrier switching, where PUCCH resources may be scheduled on both component carriers, resulting in UE 120 switching between CC0 and CC1 to use PUCCH resources on different component carriers. Carrier switching may be dynamically indicated by base station 110 in downlink control information (DCI), semi-statically configured for UE 120 in radio resource control (RRC) configuration or in medium access control channel (MAC) control element (MAC-CE), or a combination thereof. In some cases, semi-static PUCCH carrier switching may be based on RRC configured semi-static time domain PUCCH cell patterns of applicable PUCCH cells (or component carriers) and may support switching between PUCCH cells (or component carriers) with different numerologies.

[0091]

[0099] A quasi-static time domain PUCCH cell pattern may include a (quasi-static) pattern of PUCCH resources on two or more component carriers that results in UE 120 switching between two or more component carriers to use the PUCCH resources. As an example, a quasi-static time domain PUCCH cell pattern may include a PUCCH resource in a first slot on a first component carrier, may include a PUCCH resource in a second slot (following the first slot) on a second component carrier, may include a PUCCH resource in a third slot (following the second slot) on the first component carrier, etc. Thus, a UE 120 configured with an example quasi-static time domain PUCCH cell pattern may use a PUCCH resource in a first slot on a first component carrier, may perform a carrier switch to switch from the first component carrier to the second component carrier to use a PUCCH resource in the second slot, may perform a carrier switch to switch from the second component carrier to the first component carrier to use a PUCCH resource in the third slot, etc.

[0092]

[0100] As an example of the above, at 502, base station 110 may transmit a downlink transmission to UE 120. UE 120 may receive the downlink transmission on CC0. At 504, UE 120 may perform a carrier switch after receiving the downlink transmission on CC0. The carrier switch may include switching from CC0 to CC1. The carrier switch may include adjusting or tuning modem 254, antenna 252, other hardware of UE 120, or a combination thereof, to operate on the frequency range of CC1. At 506, UE 120 may transmit a PUCCH resource in a target PUCCH resource in slot 4 on CC1 instead of an originally scheduled PUCCH resource in slot 5 on CC0 at 508 based on the carrier switch.

[0093]

[0101] FIG. 6 illustrates an example 600 of deferred HARQ feedback for carrier switching. The example 600 may include, among other examples, communication between the UE 120 and the base station 110 described with respect to FIG. 1 and FIG. 2, or communication between the UE 120 and other types of wireless communication devices (including network entities or notes, such as the DU 330, RU 340, or CU 310 described with respect to FIG. 3). As illustrated in FIG. 6, the base station 110 and the UE 120 may communicate within one or more slots within a wireless network, such as the wireless network 100. For example, the base station 110 and the UE 120 may communicate within one or more of slots 0-9. However, the base station 110 and the UE 120 may communicate over a different amount of slots. Additionally, the UE 120 may communicate with another network entity or network node, such as the CU 310, the DU 330, the RU 340, or another network entity, within one or more of the slots. Additionally, or alternatively, the base station 110 may be implemented by or include one or more of the CU 310, the DU 330, the RU 340, or another network entity, as described with respect to Figure 3 or elsewhere herein. Further, the UE 120 and the base station 110 may communicate over multiple component carriers, including CC0 and CC1.

[0094]

[0102] In example 600, HARQ feedback deferral and carrier switching may be configured and enabled for UE 120 (simultaneous configuration of SPS HARQ deferral and PUCCH cell switching based on semi-static time domain pattern). For target slot determination for transmitting deferred HARQ feedback, UE 120 may first determine the next PUCCH slot using the semi-static time domain PUCCH cell pattern and related parameters for semi-static PUCCH cell switching. UE 120 may then determine whether the next PUCCH slot is a target PUCCH slot for deferred HARQ feedback based on the SPS HARQ deferral parameters for UE 120. If the next PUCCH slot is the target PUCCH slot, UE 120 may determine whether to transmit deferred HARQ feedback in the target PUCCH slot. However, in some cases, the deferred HARQ feedback may not fit in the PUCCH resource in the target PUCCH slot (e.g., because non-deferred HARQ feedback is also scheduled to be transmitted in the PUCCH resource). In example 600, UE 120 is configured to drop deferred HARQ feedback if carrier switching is configured for UE 120 and the deferred HARQ feedback is too large to be transmitted within the PUCCH resources in the target PUCCH slot.

[0095]

[0103] At 602, base station 110 may transmit a downlink transmission to UE 120. UE 120 may receive the downlink transmission on CC0. A slot format change may then occur on CC0. For example, the slot format of slot 1 may be changed from an uplink slot format or from a slot format including uplink symbols to a downlink slot format or to a slot format not including uplink symbols (base station 110 may so reconfigure slot 1). As a result, at 604, a collision may occur within slot 1 between the transmission of HARQ feedback and one or more downlink symbols within slot 1. UE 120 may determine to postpone the transmission of HARQ feedback to a subsequent slot based on the collision. For example, at 606, UE 120 may select an initially scheduled PUCCH resource for HARQ deferral on CC0 for the transmission of the deferred HARQ feedback for the downlink transmission. The initially scheduled PUCCH resource may include an uplink resource including a time domain resource, a frequency domain resource, or a combination thereof.

[0096]

[0104] At 608, the UE 120 may perform a carrier switch after receiving the downlink transmission on CC0 and after the collision. The carrier switch may include switching from CC0 to CC1. The carrier switch may include adjusting or tuning the modem 254, the antenna 252, other hardware of the UE 120, or a combination thereof to operate on the frequency range of CC1. The UE 120 may perform the carrier switch based on a semi-static PUCCH cell pattern, based on another configuration, or based on signaling from the base station 110.

[0097]

[0105] At 610, UE 120 may select or identify a target PUCCH resource for transmission of the deferred HARQ feedback on CC1 (e.g., in slot 4 on CC1) based on the carrier switch, instead of the originally scheduled PUCCH resource in slot 5 on CC0 at 508. Thus, CC1 becomes the target component carrier for the deferred HARQ feedback based on the carrier switch from CC0 to CC1. The target PUCCH resource may include uplink resources, including time domain resources, frequency domain resources, or a combination thereof.

[0098]

[0106] At 612, UE 120 may drop the deferred HARQ feedback on CC1 based on the deferred HARQ feedback exceeding an available size in the target PUCCH resource or based on the HARQ feedback exceeding a threshold in the target PUCCH resource. In other words, UE 120 does not further defer the deferred HARQ feedback to another PUCCH resource after the target PUCCH resource, and instead drops the deferred HARQ feedback entirely or refrains from sending it. This reduces the complexity for UE 120 to process non-deferred HARQ feedback in the target PUCCH resource. In some aspects, UE 120 may drop or refrain from sending the non-deferred HARQ feedback such that the HARQ feedback is not sent in the target PUCCH resource even if non-deferred HARQ feedback for another downlink communication is also scheduled or configured to be sent in the target PUCCH resource. Alternatively, UE 120 may send the non-deferred HARQ feedback in the target PUCCH resource.

[0099]

[0107] In some aspects, UE 120 is configured with a configuration at deployment time that indicates that UE 120 should drop the deferred HARQ feedback if the deferred HARQ feedback exceeds the available size of the target PUCCH resource. In some aspects, base station 110 transmits (and UE 120 receives) the configuration in an RRC communication, a DCI communication, a MAC-CE communication, or another type of downlink communication, and UE 120 drops the deferred HARQ feedback based on the configuration.

[0100]

[0108] UE 120 may determine that the HARQ feedback exceeds a threshold or available size in the target PUCCH resource and may determine to drop the deferred HARQ feedback based on determining that the HARQ feedback exceeds a threshold or available size in the target PUCCH resource. Specifically, UE 120 may determine that an amount of bits for the deferred HARQ feedback exceeds an amount of available bits in the target PUCCH resource.

[0101]

[0109] In some aspects, the UE 120 is scheduled or configured to transmit multiple repetitions of the HARQ feedback for downlink transmission. The UE 120 may defer a subset of the repetitions (resulting in a repetition of the deferred HARQ feedback) and transmit another subset of the repetitions, or defer all repetitions of the HARQ feedback based on the collision. The techniques described with respect to example 600 may be extended to handling the repetitions of the deferred HARQ feedback. For example, the UE 120 may drop or refrain from transmitting at least a subset of the repetitions of the deferred HARQ feedback based on the subset of the repetitions of the deferred HARQ feedback exceeding an available size (or a threshold) in the target PUCCH resource. This may reduce the complexity for the UE 120 to process non-deferred HARQ feedback in the target PUCCH resource and may also reduce latency and resource consumption because some repetitions of the HARQ feedback may already have been successfully received by the base station 110.

[0102]

[0110] Additionally or alternatively, UE 120 may drop or refrain from sending at least a subset of the repetitions of the deferred HARQ feedback based on an amount of the repetitions of the deferred HARQ feedback that collided with at least one downlink communication on CC0 meeting a threshold. For example, UE 120 may drop at least a subset of the repetitions of the deferred HARQ feedback based on 10 of the 15 repetitions colliding with at least one downlink communication on CC0. As another example, UE 120 may drop at least a subset of the repetitions of the deferred HARQ feedback based on at least 50% or more of the repetitions colliding with at least one downlink communication on CC0.

[0103]

[0111] In an aspect in which repetitions of deferred HARQ feedback are dropped in the target PUCCH resource, UE 120 may drop or refrain from sending the non-deferred HARQ feedback such that the HARQ feedback is not sent in the target PUCCH resource even if non-deferred HARQ feedback for another downlink communication is also scheduled or configured to be sent in the target PUCCH resource. Alternatively, UE 120 may send the non-deferred HARQ feedback in the target PUCCH resource.

[0104]

[0112] FIG. 7 illustrates an example 700 of deferred HARQ feedback for carrier switching. The example 700 may include, among other examples, communication between the UE 120 and the base station 110 described with respect to FIG. 1 and FIG. 2, or communication between the UE 120 and other types of wireless communication devices (including network entities or notes, such as the DU 330, RU 340, or CU 310 described with respect to FIG. 3). As illustrated in FIG. 7, the base station 110 and the UE 120 may communicate within one or more slots within a wireless network, such as the wireless network 100. For example, the base station 110 and the UE 120 may communicate within one or more of slots 0-9. However, the base station 110 and the UE 120 may communicate over a different amount of slots. Additionally, the UE 120 may communicate with another network entity or network node, such as the CU 310, the DU 330, the RU 340, or another network entity, within one or more of the slots. Additionally, or alternatively, the base station 110 may be implemented by or include one or more of the CU 310, the DU 330, the RU 340, or another network entity, as described with respect to Figure 3 or elsewhere herein. Further, the UE 120 and the base station 110 may communicate over multiple component carriers, including CC0 and CC1.

[0105]

[0113] In example 700, HARQ feedback deferral and carrier switching may be configured and enabled for UE 120 (simultaneous configuration of SPS HARQ deferral and PUCCH cell switching based on semi-static time domain pattern). For target slot determination for transmitting deferred HARQ feedback, UE 120 may first determine the next PUCCH slot using the semi-static time domain PUCCH cell pattern and related parameters for semi-static PUCCH cell switching. UE 120 may then determine whether the next PUCCH slot is a target PUCCH slot for deferred HARQ feedback based on the SPS HARQ deferral parameters for UE 120. If the next PUCCH slot is the target PUCCH slot, UE 120 may determine whether to transmit deferred HARQ feedback in the target PUCCH slot. However, in some cases, the deferred HARQ feedback may not fit in the PUCCH resource in the target PUCCH slot (e.g., because non-deferred HARQ feedback is also scheduled to be transmitted in the PUCCH resource). In example 700, UE 120 is configured to continue to postpone deferred HARQ feedback if carrier switching is configured for UE 120 and the deferred HARQ feedback is too large to be transmitted within the PUCCH resources in the target PUCCH slot. Specifically, in example 700, UE 120 remains on the target component carrier (in other words, UE 120 ignores the quasi-static time domain PUCCH cell pattern) until UE 120 transmits deferred HARQ feedback on the target component carrier. UE 120 may then resume adhering to the quasi-static time domain PUCCH cell pattern.

[0106]

[0114] At 702, base station 110 may transmit a downlink transmission to UE 120. UE 120 may receive the downlink transmission on CC0. A slot format change may then occur on CC0. For example, the slot format of slot 1 may be changed from an uplink slot format or from a slot format including uplink symbols to a downlink slot format or to a slot format not including uplink symbols (base station 110 may so reconfigure slot 1). As a result, at 704, a collision may occur within slot 1 between the transmission of HARQ feedback and one or more downlink symbols within slot 1. UE 120 may determine to postpone the transmission of HARQ feedback to a subsequent slot based on the collision. For example, at 706, UE 120 may identify or select an initially scheduled PUCCH resource for HARQ deferral on CC0 for the transmission of the deferred HARQ feedback for the downlink transmission. The initially scheduled PUCCH resource may include an uplink resource including a time domain resource, a frequency domain resource, or a combination thereof.

[0107]

[0115] At 708, the UE 120 may perform a carrier switch after receiving the downlink transmission on CC0 and after the collision. The carrier switch may include switching from CC0 to CC1. The carrier switch may include adjusting or tuning the modem 254, the antenna 252, other hardware of the UE 120, or a combination thereof to operate on the frequency range of CC1. The UE 120 may perform the carrier switch based on a semi-static PUCCH cell pattern, based on another configuration, or based on signaling from the base station 110.

[0108]

[0116] At 710, UE 120 may determine or identify a target PUCCH resource for transmission of deferred HARQ feedback on CC1 (e.g., in slot 4 on CC1) based on the carrier switch, instead of the originally scheduled PUCCH resource in slot 5 on CC0 at 508. Thus, CC1 becomes the target component carrier for the deferred HARQ feedback based on the carrier switch from CC0 to CC1. The target PUCCH resource may include uplink resources including time domain resources, frequency domain resources, or a combination thereof.

[0109]

[0117] At 712, UE 120 may continue to postpone transmission of the deferred HARQ feedback to a subsequent PUCCH resource on CC1 based on the deferred HARQ feedback exceeding a threshold in the target PUCCH resource. In other words, UE 120 remains on CC1 (and does not switch back to CC0) until UE 120 identifies or selects a subsequent PUCCH for the deferred HARQ feedback on CC1 and transmits (and base station 110 receives) the deferred HARQ feedback in the subsequent PUCCH resource on CC1. UE 120 may remain on CC1 to transmit the deferred HARQ feedback on CC1 even if new HARQ bits for the subsequent downlink transmission will be transmitted. UE 120 may then resume carrier switching based on the quasi-static time domain PUCCH cell pattern.

[0110]

[0118] UE 120 may determine that the HARQ feedback exceeds a threshold or available size in the target PUCCH resource and may determine to send deferred HARQ feedback in a subsequent PUCCH resource based on determining that the HARQ feedback exceeds a threshold or available size in the target PUCCH resource. Specifically, UE 120 may determine that an amount of bits for deferred HARQ feedback exceeds an amount of available bits in the target PUCCH resource.

[0111]

[0119] In some aspects, UE 120 is configured with a configuration at deployment time that indicates that if the deferred HARQ feedback exceeds the available size of the target PUCCH resource, then UE 120 should transmit the deferred HARQ feedback in a subsequent PUCCH resource and ignore the semi-static time domain PUCCH cell pattern. In some aspects, base station 110 transmits (and UE 120 receives) the configuration in an RRC, DCI, MAC-CE, or another type of downlink communication, and UE 120 transmits (and base station 110 receives) the deferred HARQ feedback in a subsequent PUCCH resource based on the configuration.

[0112]

[0120] In some aspects, if non-deferred HARQ feedback for another downlink communication is also scheduled or configured to be transmitted in the target PUCCH resource, UE 120 may drop or refrain from transmitting the non-deferred HARQ feedback such that the HARQ feedback is not transmitted in the target PUCCH resource. Alternatively, UE 120 may transmit (and base station 110 may receive) the non-deferred HARQ feedback in the target PUCCH resource. If the non-deferred HARQ feedback scheduled to be transmitted in the target PUCCH resource is also postponed, UE 120 may transmit (and base station 110 may receive) this other deferred HARQ feedback in a subsequent PUCCH resource along with the deferred HARQ feedback. Furthermore, UE 120 may transmit (and base station 110 may receive) another non-deferred HARQ feedback for another downlink communication in a subsequent PUCCH resource along with the deferred HARQ feedback, another deferred HARQ feedback, or a combination thereof.

[0113]

[0121] In some aspects, UE 120 is scheduled or configured to transmit multiple repetitions of HARQ feedback for downlink transmission. UE 120 may defer a subset of the repetitions (resulting in deferred HARQ feedback repetitions) or may defer all repetitions of HARQ feedback based on collisions. The techniques described with respect to example 700 may be extended to handling deferred HARQ feedback repetitions. For example, UE 120 may transmit (and base station 110 may receive) at least a subset of the deferred HARQ feedback repetitions in a subsequent PUCCH resource on CC1 based on the subset of the deferred HARQ feedback repetitions exceeding an available size (or threshold) in the target PUCCH resource. In an aspect in which a repetition of deferred HARQ feedback is deferred from a target PUCCH resource to a subsequent PUCCH resource on CC1, UE 120 may transmit (and base station 110 may receive) a repetition of non-deferred HARQ feedback in the target PUCCH resource, a repetition of non-deferred HARQ feedback in the subsequent PUCCH resource, another repetition of deferred HARQ feedback in the subsequent PUCCH resource, or a combination thereof, along with a subset of the repetitions of deferred HARQ feedback.

[0114]

[0122] FIG. 8 illustrates an example 800 of deferred HARQ feedback for carrier switching. The example 800 may include, among other examples, communication between the UE 120 and the base station 110 described with respect to FIG. 1 and FIG. 2, or communication between the UE 120 and other types of wireless communication devices (including network entities or notes, such as the DU 330, RU 340, or CU 310 described with respect to FIG. 3). As illustrated in FIG. 8, the base station 110 and the UE 120 may communicate within one or more slots within a wireless network, such as the wireless network 100. For example, the base station 110 and the UE 120 may communicate within one or more of slots 0-9. However, the base station 110 and the UE 120 may communicate over a different amount of slots. Additionally, the UE 120 may communicate with another network entity or network node, such as the CU 310, the DU 330, the RU 340, or another network entity, within one or more of the slots. Additionally, or alternatively, the base station 110 may be implemented by or include one or more of the CU 310, the DU 330, the RU 340, or another network entity, as described with respect to Figure 3 or elsewhere herein. Further, the UE 120 and the base station 110 may communicate over multiple component carriers, including CC0 and CC1.

[0115]

[0123] In example 800, HARQ feedback deferral and carrier switching may be configured and enabled for UE 120 (simultaneous configuration of SPS HARQ deferral and PUCCH cell switching based on semi-static time domain pattern). For target slot determination for transmitting deferred HARQ feedback, UE 120 may first determine the next PUCCH slot using the semi-static time domain PUCCH cell pattern and related parameters for semi-static PUCCH cell switching. UE 120 may then determine whether the next PUCCH slot is a target PUCCH slot for deferred HARQ feedback based on the SPS HARQ deferral parameters for UE 120. If the next PUCCH slot is the target PUCCH slot, UE 120 may determine whether to transmit deferred HARQ feedback in the target PUCCH slot. However, in some cases, the deferred HARQ feedback may not fit in the PUCCH resource in the target PUCCH slot (e.g., because non-deferred HARQ feedback is also scheduled to be transmitted in the PUCCH resource). In example 800, UE 120 is configured to continue to postpone deferred HARQ feedback if the deferred HARQ feedback is too large to be transmitted in a PUCCH resource in the target PUCCH slot when carrier switching is configured for UE 120. Specifically, in example 800, UE 120 adheres to or follows a quasi-static time domain PUCCH cell pattern and selects a subsequent PUCCH resource on either component carrier (based on the quasi-static time domain PUCCH cell pattern) for transmission of the deferred HARQ feedback based on the quasi-static time domain PUCCH cell pattern.

[0116]

[0124] At 802, base station 110 may transmit a downlink transmission to UE 120. UE 120 may receive the downlink transmission on CC0. A slot format change may then occur on CC0. For example, the slot format of slot 1 may be changed from an uplink slot format or from a slot format including uplink symbols to a downlink slot format or to a slot format not including uplink symbols (base station 110 may so reconfigure slot 1). As a result, at 804, a collision may occur within slot 1 between the transmission of HARQ feedback and one or more downlink symbols within slot 1. UE 120 may determine to postpone the transmission of HARQ feedback to a subsequent slot based on the collision. For example, at 806, UE 120 may identify or select an initially scheduled PUCCH resource for HARQ deferral on CC0 for the transmission of the deferred HARQ feedback for the downlink transmission. The initially scheduled PUCCH resource may include an uplink resource including a time domain resource, a frequency domain resource, or a combination thereof.

[0117]

[0125] At 808, the UE 120 may perform a carrier switch after receiving the downlink transmission on CC0 and after the collision. The carrier switch may include switching from CC0 to CC1. The carrier switch may include adjusting or tuning the modem 254, the antenna 252, other hardware of the UE 120, or a combination thereof to operate on the frequency range of CC1. The UE 120 may perform the carrier switch based on a semi-static PUCCH cell pattern, based on another configuration, or based on signaling from the base station 110.

[0118]

[0126] At 810, UE 120 may determine or identify or select a target PUCCH resource for transmission of the deferred HARQ feedback on CC1 (e.g., in slot 4 on CC1) based on the carrier switch instead of the originally scheduled PUCCH resource in slot 5 on CC0 at 508. Thus, CC1 becomes the target component carrier for the deferred HARQ feedback based on the carrier switch from CC0 to CC1. The target PUCCH resource may include uplink resources including time domain resources, frequency domain resources, or a combination thereof.

[0119]

[0127] At 812, UE 120 may continue to postpone transmission of the deferred HARQ feedback to one or more subsequent PUCCH resources on CC0, CC1, or a combination thereof based on the deferred HARQ feedback exceeding a threshold in the target PUCCH resource. In other words, UE 120 may adhere to or follow a quasi-static time-domain PUCCH cell pattern (carrier switching pattern) and may identify or select one or more subsequent PUCCH resources for the deferred HARQ feedback on CC0, CC1, or a combination thereof that UE 120 may use to transmit (and base station 110 may use to receive) the deferred HARQ feedback.

[0120]

[0128] For example, UE 120 may identify or select a subsequent PUCCH resource on CC1 before a carrier switch from CC1 to CC0, and may transmit (and base station 110 may receive) deferred HARQ feedback in the subsequent PUCCH resource on CC1 before the carrier switch. As another example, and as shown in FIG. 8, UE 120 may perform a carrier switch from CC1 to CC0, UE 120 may identify or select a subsequent PUCCH resource on the CC after the carrier switch, and UE 120 may transmit (and base station 110 may receive) deferred HARQ feedback in the subsequent PUCCH resource on CC0 after the carrier switch.

[0121]

[0129] UE 120 may determine that the HARQ feedback exceeds a threshold or available size in the target PUCCH resource and may determine to transmit deferred HARQ feedback in one or more subsequent PUCCH resources based on determining that the HARQ feedback exceeds a threshold or available size in the target PUCCH resource. Specifically, UE 120 may determine that an amount of bits for deferred HARQ feedback exceeds an amount of available bits in the target PUCCH resource.

[0122]

[0130] In some aspects, UE 120 is configured with a configuration that, at deployment time, indicates that if the deferred HARQ feedback exceeds the available size of the target PUCCH resource, then UE 120 should transmit the deferred HARQ feedback in one or more subsequent PUCCH resources and adhere to a semi-static time domain PUCCH cell pattern. In some aspects, base station 110 transmits (and UE 120 receives) the configuration in an RRC, DCI, MAC-CE, or another type of downlink communication, and UE 120 transmits (and base station 110 receives) the deferred HARQ feedback in the subsequent PUCCH resource based on the configuration.

[0123]

[0131] In some aspects, if non-deferred HARQ feedback for another downlink communication is also scheduled or configured to be transmitted in the target PUCCH resource, UE 120 may drop or refrain from transmitting the non-deferred HARQ feedback such that the HARQ feedback is not transmitted in the target PUCCH resource. Alternatively, UE 120 may transmit (and base station 110 may receive) the non-deferred HARQ feedback in the target PUCCH resource. If the non-deferred HARQ feedback scheduled to be transmitted in the target PUCCH resource is also postponed, UE 120 may transmit (and base station 110 may receive) this other deferred HARQ feedback in one or more subsequent PUCCH resources on CC0, CC1, or a combination thereof along with the deferred HARQ feedback. Additionally, UE 120 may transmit (and base station 110 may receive) another non-deferred HARQ feedback for another downlink communication in one or more subsequent PUCCH resources on CC0, CC1, or a combination thereof, along with the deferred HARQ feedback, another deferred HARQ feedback, or a combination thereof.

[0124]

[0132] In some aspects, the UE 120 is scheduled or configured to transmit multiple repetitions of the HARQ feedback for downlink transmission. The UE 120 may postpone a subset of the repetitions (resulting in a deferred HARQ feedback repetition) or may postpone all repetitions of the HARQ feedback (e.g., all repetitions of the HARQ feedback that have not yet been transmitted) based on a collision. The techniques described with respect to example 800 may be extended to handling the deferred HARQ feedback repetitions. For example, the UE 120 may transmit (and the base station 110 may receive) at least a subset of the deferred HARQ feedback repetitions in one or more subsequent PUCCH resources on CC0, CC1, or a combination thereof based on the subset of the deferred HARQ feedback repetitions exceeding an available size (or threshold) in the target PUCCH resource. In an aspect in which a deferred HARQ feedback repetition is deferred from the target PUCCH resource to one or more subsequent PUCCH resources, UE 120 may transmit (and base station 110 may receive) a non-deferred HARQ feedback repetition in the target PUCCH resource, a non-deferred HARQ feedback repetition in one or more subsequent PUCCH resources on CC0, CC1, or a combination thereof, another deferred HARQ feedback repetition in one or more subsequent PUCCH resources on CC0, CC1, or a combination thereof, or a combination thereof, along with a subset of the deferred HARQ feedback repetitions.

[0125]

[0133] In some aspects, the techniques of examples 600, 700, and 800 may be combined for processing of deferred HARQ feedback repetitions. For example, UE 120 may drop or refrain from transmitting a first subset of deferred HARQ feedback repetitions in a target PUCCH resource on CC1 based on the deferred HARQ feedback repetitions exceeding a threshold, may transmit a second subset of deferred HARQ feedback repetitions (further deferred from the target PUCCH resource) in a subsequent PUCCH resource on CC1 based on the deferred HARQ feedback repetitions exceeding a threshold, may transmit a second subset of deferred HARQ feedback repetitions (further deferred from the target PUCCH resource) in a subsequent PUCCH resource on CC1 based on the deferred HARQ feedback repetitions exceeding a threshold, or may use another combination of techniques described herein for processing deferred HARQ feedback for carrier switching. In some aspects, base station 110 may transmit (and UE 120 may receive) a configuration that indicates a combination of techniques that UE 120 may use to process the deferred HARQ feedback based on the configuration. In some aspects, base station 110 may dynamically update the configuration to change or modify the combination of techniques that UE 120 should use to process the deferred HARQ feedback.

[0126]

[0134] 9 illustrates an example process 900 performed, for example, by a UE. The process 900 is an example of a UE (e.g., UE 120) performing operations associated with deferred HARQ feedback for carrier switching.

[0127]

[0135] 9, in some aspects, the process 900 may include receiving a downlink communication on a first component carrier (block 910). For example, the UE may receive the downlink communication on the first component carrier (e.g., by using the communications manager 140 or the receiving component 1402 shown in FIG. 14).

[0128]

[0136] 9, in some aspects, the process 900 may include dropping the deferred HARQ feedback associated with the downlink communication on the second component carrier in association with the deferred HARQ feedback exceeding the available size in the uplink resources (block 920). For example, the UE may drop (e.g., by using the communications manager 140 or the dropping component 1408 shown in FIG. 14) the deferred HARQ feedback associated with the downlink communication on the second component carrier in association with the deferred HARQ feedback exceeding the available size in the uplink resources.

[0129]

[0137] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described with respect to process 900 or with respect to one or more other processes described elsewhere herein.

[0130]

[0138] In a first additional aspect, the deferred HARQ feedback is deferred from another uplink resource on the first component carrier before an uplink resource on a second component carrier based on a collision between a downlink resource on the first component carrier and another uplink resource on the first component carrier.

[0131]

[0139] In a second additional aspect, alone or in combination with the first aspect, the process 900 includes performing a carrier switch from the first component carrier to the second component carrier after receiving a downlink communication and prior to uplink resources on the second component carrier in association with a quasi-static PUCCH cell pattern.

[0132]

[0140] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the process 900 includes transmitting, in the uplink resources, non-deferred HARQ feedback associated with another downlink communication.

[0133]

[0141] In a fourth additional aspect, alone or in combination with one or more of the first through third aspects, the process 900 includes dropping non-deferred HARQ feedback associated with another downlink communication in the uplink resources.

[0134]

[0142] In a fifth additional aspect, alone or in combination with one or more of the first to fourth aspects, dropping the deferred HARQ feedback includes dropping the deferred HARQ feedback based on a quantity of bits associated with the deferred HARQ feedback exceeding a quantity of available bits in an uplink resource associated with the deferred HARQ feedback.

[0135]

[0143] In a sixth additional aspect, alone or in combination with one or more of the first to fifth aspects, dropping the deferred HARQ feedback includes dropping the deferred HARQ feedback based on a configuration received in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0136]

[0144] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, the second component carrier is associated with a target PUCCH carrier and the uplink resource is included within a target slot on the target PUCCH carrier.

[0137]

[0145] In an eighth additional aspect, alone or in combination with one or more of the first to seventh aspects, the deferred HARQ feedback comprises multiple repetitions of the deferred HARQ feedback, and dropping the deferred HARQ feedback on the second component carrier comprises dropping at least a subset of the multiple repetitions of the deferred HARQ feedback on the second component carrier.

[0138]

[0146] In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, the process 900 includes transmitting another subset of the multiple repetitions of the deferred HARQ feedback on at least one of the first component carrier or the second component carrier in another uplink resource after the uplink resource.

[0139]

[0147] In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the process 900 includes dropping non-deferred HARQ feedback associated with another downlink communication in the uplink resources.

[0140]

[0148] In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, the process 900 includes transmitting, within the uplink resources, non-deferred HARQ feedback associated with another downlink communication.

[0141]

[0149] In a twelfth additional aspect, alone or in combination with one or more of the first to eleventh aspects, the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and dropping the deferred HARQ feedback on the second component carrier includes dropping at least a subset of the multiple repetitions of the deferred HARQ feedback on the second component carrier based on an amount of the multiple repetitions of the deferred HARQ feedback that collided with at least one of the downlink communication or another downlink communication satisfying a threshold.

[0142]

[0150] 9 illustrates example blocks of process 900, in some aspects process 900 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 9. Additionally or alternatively, two or more of the blocks of process 900 may be performed in parallel.

[0143]

[0151] 10 illustrates an example process 1000 performed, for example, by a UE. Process 1000 is an example of a UE (e.g., UE 120) performing operations associated with deferred HARQ feedback for carrier switching.

[0144]

[0152] 10, in some aspects, process 1000 may include receiving a downlink communication on a first component carrier (block 1010). For example, a UE may receive a downlink communication on the first component carrier (e.g., by using the communications manager 140 or the receiving component 1502 shown in FIG. 15).

[0145]

[0153] As further illustrated in FIG. 10, in some aspects, the process 1000 may include transmitting (block 1020) deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. For example, the UE may transmit (e.g., by using the communications manager 140 or the transmitting component 1504 illustrated in FIG. 15) deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource is on the second component carrier. In some aspects, the UE transmits the deferred HARQ feedback in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0146]

[0154] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described with respect to process 1000 or with respect to one or more other processes described elsewhere herein.

[0147]

[0155] In a first additional aspect, the deferred HARQ feedback is deferred from the third uplink resource on the first component carrier before the first uplink resource and the second uplink resource on the second component carrier based on a collision between the downlink resource on the first component carrier and the third uplink resource on the first component carrier.

[0148]

[0156] In a second additional aspect, alone or in combination with the first aspect, the process 1000 includes performing a carrier switch from the first component carrier to the second component carrier after receiving the downlink communication and prior to the second uplink resource on the second component carrier in association with the quasi-static PUCCH cell pattern. In such an aspect, the carrier switch may be performed prior to the first uplink resource and the second uplink resource on the second component carrier.

[0149]

[0157] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the process 1000 includes transmitting, within the first uplink resource, non-deferred HARQ feedback associated with another downlink communication.

[0150]

[0158] In a fourth additional aspect, alone or in combination with one or more of the first to third aspects, the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, and the process 1000 includes transmitting, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with the second downlink communication.

[0151]

[0159] In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, the process 1000 includes transmitting non-deferred HARQ feedback associated with a third downlink communication in the second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0152]

[0160] In a sixth additional aspect, alone or in combination with one or more of the first to fifth aspects, the process 1000 includes remaining on the first component carrier until the deferred HARQ feedback is transmitted on the second component carrier.

[0153]

[0161] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, transmitting the deferred HARQ feedback includes transmitting the deferred HARQ feedback in a second uplink resource based on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in the first uplink resource associated with the deferred HARQ feedback.

[0154]

[0162] In an eighth additional aspect, alone or in combination with one or more of the first to seventh aspects, transmitting the deferred HARQ feedback in the second uplink resources includes transmitting the deferred HARQ feedback in the second uplink resources based on a configuration received in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0155]

[0163] In a ninth additional aspect, alone or in combination with one or more of the first to eighth aspects, the second component carrier is associated with a target PUCCH carrier, the first uplink resource is included within a first target slot on the target PUCCH carrier, and the second uplink resource is included within a second target slot on the target PUCCH carrier.

[0156]

[0164] In a tenth additional aspect, alone or in combination with one or more of the first to ninth aspects, the deferred HARQ feedback comprises multiple repetitions of the deferred HARQ feedback, and transmitting the deferred HARQ feedback in the second uplink resources on the second component carrier comprises transmitting at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the second component carrier.

[0157]

[0165] In an eleventh additional aspect, alone or in combination with one or more of the first to tenth aspects, the process 1000 includes transmitting another subset of the multiple repetitions of the deferred HARQ feedback in a third uplink resource on the first component carrier that occurs after the second uplink resource.

[0158]

[0166] In a twelfth additional aspect, alone or in combination with one or more of the first through eleventh aspects, the process 1000 includes dropping another subset of the multiple repetitions of the deferred HARQ feedback.

[0159]

[0167] In a thirteenth additional aspect, alone or in combination with one or more of the first through twelfth aspects, the process 1000 includes transmitting, within the first uplink resource, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0160]

[0168] In a fourteenth additional aspect, alone or in combination with one or more of the first to thirteenth aspects, the multiple repetitions of the deferred HARQ feedback include a first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the process 1000 includes transmitting, in a second uplink resource together with at least the subset of the multiple repetitions of the deferred HARQ feedback, at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication.

[0161]

[0169] 10 illustrates example blocks of process 1000, in some aspects process 1000 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 10. Additionally or alternatively, two or more of the blocks of process 1000 may be performed in parallel.

[0162]

[0170] 11 illustrates an example process 1100 performed, for example, by a UE. The process 1100 is an example of a UE (for example, the UE 120) performing operations associated with deferred HARQ feedback for carrier switching.

[0163]

[0171] 11, in some aspects, process 1100 may include receiving a downlink communication on a first component carrier (block 1110). For example, the UE may receive a downlink communication on the first component carrier (e.g., by using the communications manager 140 or the receiving component 1602 shown in FIG. 16).

[0164]

[0172] 11, in some aspects, the process 1100 may include transmitting (block 1120) the deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource. For example, the UE may transmit (e.g., by using the communications manager 140 or the transmitting component 1604 shown in FIG. 16) the deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0165]

[0173] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described with respect to process 1100 or with respect to one or more other processes described elsewhere herein.

[0166]

[0174] In a first additional aspect, the deferred HARQ feedback is deferred from the third uplink resource on the first component carrier before the first uplink resource on the first component carrier and the second uplink resource on the second component carrier based on a collision between the downlink resource on the first component carrier and the third uplink resource on the first component carrier.

[0167]

[0175] In a second additional aspect, alone or in combination with the first aspect, the process 1100 includes performing a first carrier switch from the first component carrier to the second component carrier after receiving a downlink communication and before a first uplink resource on the second component carrier in association with a quasi-static PUCCH cell pattern, and performing a second carrier switch from the second component carrier to the first component carrier after the first uplink resource on the second component carrier and before a second uplink resource on the first component carrier in association with the quasi-static PUCCH cell pattern.

[0168]

[0176] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the process 1100 includes transmitting, together with the deferred HARQ feedback, non-deferred HARQ feedback associated with another downlink communication in at least one of a first uplink resource on the second component carrier or a second uplink resource on the first component carrier.

[0169]

[0177] In a fourth additional aspect, alone or in combination with one or more of the first to third aspects, the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, and the process 1100 includes transmitting, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with the second downlink communication.

[0170]

[0178] In a fifth additional aspect, alone or in combination with one or more of the first through fourth aspects, the process 1100 includes transmitting non-deferred HARQ feedback associated with a third downlink communication in the second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0171]

[0179] In a sixth additional aspect, alone or in combination with one or more of the first to fifth aspects, transmitting the deferred HARQ feedback includes transmitting the deferred HARQ feedback in a second uplink resource based on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in a first uplink resource associated with the deferred HARQ feedback.

[0172]

[0180] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, transmitting the deferred HARQ feedback in the second uplink resources includes transmitting the deferred HARQ feedback in the second uplink resources based on a configuration received in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0173]

[0181] In an eighth additional aspect, alone or in combination with one or more of the first to seventh aspects, the deferred HARQ feedback comprises multiple repetitions of the deferred HARQ feedback, and transmitting the deferred HARQ feedback in the second uplink resources on the first component carrier comprises transmitting at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the first component carrier.

[0174]

[0182] In a ninth additional aspect, alone or in combination with one or more of the first to eighth aspects, the process 1100 includes transmitting another subset of the multiple repetitions of the deferred HARQ feedback on a second component carrier occurring after the first uplink resource in a third uplink resource after the first uplink resource.

[0175]

[0183] In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the process 1100 includes dropping another subset of the multiple repetitions of the deferred HARQ feedback.

[0176]

[0184] In an eleventh additional aspect, alone or in combination with one or more of the first through tenth aspects, the process 1100 includes transmitting, within a first uplink resource on a second component carrier, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0177]

[0185] In a twelfth additional aspect, alone or in combination with one or more of the first to eleventh aspects, the multiple repetitions of the deferred HARQ feedback include a first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the process 1100 includes transmitting, in a second uplink resource on the first component carrier together with at least the subset of the multiple repetitions of the deferred HARQ feedback, at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication.

[0178]

[0186] 11 illustrates example blocks of process 1100, in some aspects process 1100 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 11. Additionally or alternatively, two or more of the blocks of process 1100 may be performed in parallel.

[0179]

[0187] 12 illustrates an example process 1200 performed, for example, by a BS. The process 1200 is an example of a base station (e.g., base station 110) performing operations associated with deferred HARQ feedback for carrier switching.

[0180]

[0188] 12, in some aspects, the process 1200 may include transmitting a downlink communication on a first component carrier (block 1210). For example, the base station may transmit the downlink communication on the first component carrier (e.g., by using the communications manager 150 or the transmitting component 1704 shown in FIG. 17).

[0181]

[0189] 12, in some aspects, the process 1200 may include receiving a deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier (block 1220). For example, the base station may receive (e.g., by using the communications manager 150 or the receiving component 1702 shown in FIG. 17) a deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier.

[0182]

[0190] Process 1200 may include additional aspects, such as any single aspect or any combination of aspects described with respect to process 1200 or with respect to one or more other processes described elsewhere herein.

[0183]

[0191] In a first additional aspect, the deferred HARQ feedback is deferred from the third uplink resource on the first component carrier before the first uplink resource and the second uplink resource on the second component carrier based on a collision between the downlink resource on the first component carrier and the third uplink resource on the first component carrier.

[0184]

[0192] In a second additional aspect, alone or in combination with the first aspect, the process 1200 includes receiving, within the first uplink resource, non-deferred HARQ feedback associated with another downlink communication.

[0185]

[0193] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, and the process 1200 includes receiving, in the second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with the second downlink communication.

[0186]

[0194] In a fourth additional aspect, alone or in combination with one or more of the first to third aspects, the process 1200 includes receiving, in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback, a non-deferred HARQ feedback associated with a third downlink communication.

[0187]

[0195] In a fifth additional aspect, alone or in combination with one or more of the first to fourth aspects, receiving the deferred HARQ feedback includes receiving the deferred HARQ feedback in a second uplink resource based on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in the first uplink resource associated with the deferred HARQ feedback.

[0188]

[0196] In a sixth additional aspect, alone or in combination with one or more of the first through fifth aspects, the process 1200 includes transmitting a configuration associated with providing deferred HARQ feedback in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0189]

[0197] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, the second component carrier is associated with a target physical uplink control channel (PUCCH) carrier, the first uplink resource is included within a first target slot on the target PUCCH carrier, and the second uplink resource is included within a second target slot on the target PUCCH carrier.

[0190]

[0198] In an eighth additional aspect, alone or in combination with one or more of the first to seventh aspects, the deferred HARQ feedback comprises multiple repetitions of the deferred HARQ feedback, and receiving the deferred HARQ feedback in the second uplink resources on the second component carrier comprises receiving at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the second component carrier.

[0191]

[0199] In a ninth additional aspect, alone or in combination with one or more of the first to eighth aspects, the process 1200 includes receiving another subset of the multiple repetitions of the deferred HARQ feedback in a third uplink resource on the first component carrier that occurs after the second uplink resource.

[0192]

[0200] In a tenth additional aspect, alone or in combination with one or more of the first through ninth aspects, the process 1200 includes receiving, within the first uplink resource, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0193]

[0201] In an eleventh additional aspect, alone or in combination with one or more of the first to tenth aspects, the multiple repetitions of the deferred HARQ feedback include a first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the process 1200 includes receiving, in a second uplink resource together with at least the subset of the multiple repetitions of the deferred HARQ feedback, at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication.

[0194]

[0202] 12 illustrates example blocks of process 1200, in some aspects process 1200 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 12. Additionally or alternatively, two or more of the blocks of process 1200 may be performed in parallel.

[0195]

[0203] 13 illustrates an example process 1300 performed, for example, by a BS. The process 1300 is an example of a base station (e.g., base station 110) performing operations associated with deferred HARQ feedback for carrier switching.

[0196]

[0204] 13, in some aspects, the process 1300 may include transmitting a downlink communication on a first component carrier (block 1310). For example, the base station may transmit the downlink communication on the first component carrier (e.g., by using the communications manager 150 or the transmitting component 1804 shown in FIG. 18).

[0197]

[0205] 13, in some aspects, the process 1300 may include receiving a deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier (block 1320). For example, the base station may receive (e.g., by using the communications manager 150 or the receiving component 1802 shown in FIG. 18) a deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier.

[0198]

[0206] Process 1300 may include additional aspects, such as any single aspect or any combination of aspects described with respect to process 1300 or with respect to one or more other processes described elsewhere herein.

[0199]

[0207] In a first additional aspect, the deferred HARQ feedback is deferred from the third uplink resource on the first component carrier before the first uplink resource on the first component carrier and the second uplink resource on the second component carrier based on a collision between the downlink resource on the first component carrier and the third uplink resource on the first component carrier.

[0200]

[0208] In a second additional aspect, alone or in combination with the first aspect, the process 1300 includes receiving, together with the deferred HARQ feedback, non-deferred HARQ feedback associated with another downlink communication within at least one of a first uplink resource on the second component carrier or a second uplink resource on the first component carrier.

[0201]

[0209] In a third additional aspect, alone or in combination with one or more of the first and second aspects, the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, and the process 1300 includes receiving, in the second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with the second downlink communication.

[0202]

[0210] In a fourth additional aspect, alone or in combination with one or more of the first to third aspects, the process 1300 includes receiving, in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback, a non-deferred HARQ feedback associated with a third downlink communication.

[0203]

[0211] In a fifth additional aspect, alone or in combination with one or more of the first to fourth aspects, receiving the deferred HARQ feedback includes receiving the deferred HARQ feedback in a second uplink resource based on a quantity of bits associated with the deferred HARQ feedback exceeding an available quantity of bits in the first uplink resource associated with the deferred HARQ feedback.

[0204]

[0212] In a sixth additional aspect, alone or in combination with one or more of the first through fifth aspects, the process 1300 includes transmitting a configuration associated with providing deferred HARQ feedback in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0205]

[0213] In a seventh additional aspect, alone or in combination with one or more of the first to sixth aspects, the deferred HARQ feedback comprises multiple repetitions of the deferred HARQ feedback, and receiving the deferred HARQ feedback in the second uplink resources on the first component carrier comprises receiving at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the first component carrier.

[0206]

[0214] In an eighth additional aspect, alone or in combination with one or more of the first to seventh aspects, the process 1300 includes receiving, within a third uplink resource after the first uplink resource, another subset of the multiple repetitions of the deferred HARQ feedback on a second component carrier occurring after the first uplink resource.

[0207]

[0215] In a ninth additional aspect, alone or in combination with one or more of the first through eighth aspects, the process 1300 includes receiving, within a first uplink resource on a second component carrier, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0208]

[0216] In a tenth additional aspect, alone or in combination with one or more of the first to ninth aspects, the multiple repetitions of the deferred HARQ feedback include a first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the process 1300 includes receiving, in a second uplink resource on the first component carrier together with at least the subset of the multiple repetitions of the deferred HARQ feedback, at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication.

[0209]

[0217] 13 illustrates example blocks of process 1300, in some aspects process 1300 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 13. Additionally or alternatively, two or more of the blocks of process 1300 may be performed in parallel.

[0210]

[0218] FIG. 14 is a diagram of an example apparatus 1400 for wireless communication. The apparatus 1400 may be a UE (such as the UE 120) or the UE may include the apparatus 1400. In some aspects, the apparatus 1400 includes a receiving component 1402 and a transmitting component 1404, which may be in communication with one another (e.g., via one or more buses or one or more other components). As shown, the apparatus 1400 may communicate with another apparatus 1406 (such as a UE, a base station, or another wireless communication device) using the receiving component 1402 and the transmitting component 1404. As further shown, the apparatus 1400 may include a communications manager 140. The communications manager 140 may include one or more of a dropping component 1408 or a switching component 1410, among other examples.

[0211]

[0219] In some aspects, the apparatus 1400 may be configured to perform one or more operations described herein with respect to FIGS. 3-8. Additionally or alternatively, the apparatus 1400 may be configured to perform one or more processes described herein, such as process 900 of FIG. 9, or a combination thereof. In some aspects, the apparatus 1400 or one or more components illustrated in FIG. 14 may include one or more components of a UE described with respect to FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 14 may be implemented within one or more components described with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0212]

[0220] The receiving component 1402 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1406. The receiving component 1402 may provide the received communications to one or more other components of the device 1400. In some aspects, the receiving component 1402 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and provide the processed signals to one or more other components of the device 1400. In some aspects, the receiving component 1402 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof of a UE as described with respect to FIG.

[0213]

[0221] The transmitting component 1404 may transmit a communication to the device 1406, such as a reference signal, control information, a data communication, or a combination thereof. In some aspects, one or more other components of the device 1400 may generate a communication and provide the generated communication to the transmitting component 1404 for transmission to the device 1406. In some aspects, the transmitting component 1404 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communication and transmit the processed signal to the device 1406. In some aspects, the transmitting component 1404 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of a UE as described with respect to FIG. 2. In some aspects, the transmitting component 1404 may be collocated with the receiving component 1402 in a transceiver.

[0214]

[0222] The receiving component 1402 may receive a downlink communication on a first component carrier (e.g., from the apparatus 1406). The dropping component 1408 may drop a deferred HARQ feedback associated with the downlink communication on a second component carrier in connection with the deferred HARQ feedback exceeding an available size in uplink resources.

[0215]

[0223] The switching component 1410 may perform a carrier switch from the first component carrier to the second component carrier after receiving a downlink communication and prior to uplink resources on the second component carrier in association with the quasi-static PUCCH cell pattern.

[0216]

[0224] The transmitting component 1404 may transmit, in the uplink resources, non-deferred HARQ feedback associated with another downlink communication.

[0217]

[0225] A dropping component 1408 may drop non-deferred HARQ feedback associated with another downlink communication in the uplink resources.

[0218]

[0226] The transmitting component 1404 may transmit (e.g., to the apparatus 1406) another subset of the multiple repetitions of the deferred HARQ feedback on at least one of the first component carrier or the second component carrier in another uplink resource after the uplink resource.

[0219]

[0227] A dropping component 1408 may drop non-deferred HARQ feedback associated with another downlink communication in the uplink resources.

[0220]

[0228] The transmitting component 1404 may transmit, in the uplink resources, non-deferred HARQ feedback associated with another downlink communication (eg, to the apparatus 1406).

[0221]

[0229] The number and arrangement of components shown in Figure 14 are provided as an example. In practice, there may be additional, fewer, different, or differently arranged components compared to those shown in Figure 14. Furthermore, two or more of the components shown in Figure 14 may be implemented within a single component, or a single component shown in Figure 14 may be implemented as multiple distributed components. Additionally or alternatively, a set of components (one or more) shown in Figure 14 may perform one or more functions described as being performed by another set of components shown in Figure 14.

[0222]

[0230] FIG. 15 is a block diagram of an example apparatus 1500 for wireless communication. The apparatus 1500 may be a UE (e.g., UE 120), or the UE may include the apparatus 1500. In some aspects, the apparatus 1500 includes a receiving component 1502 and a transmitting component 1504, which may be in communication with each other (e.g., via one or more buses or one or more other components). As shown, the apparatus 1500 may communicate with another apparatus 1506 (such as a UE, a base station, or another wireless communication device) using the receiving component 1502 and the transmitting component 1504. As further shown, the apparatus 1500 may include a communications manager 140. The communications manager 140 may include one or more of a dropping component 1508 or a switching component 1510, among other examples.

[0223]

[0231] In some aspects, the apparatus 1500 may be configured to perform one or more operations described herein with respect to FIGS. 3-8. Additionally or alternatively, the apparatus 1500 may be configured to perform one or more processes described herein, such as the process 1000 of FIG. 10. In some aspects, the apparatus 1500 or one or more components illustrated in FIG. 15 may include one or more components of a UE described with respect to FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 15 may be implemented within one or more components described with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0224]

[0232] The receiving component 1502 may receive communications from the device 1506, such as a reference signal, control information, data communications, or a combination thereof. The receiving component 1502 may provide the received communications to one or more other components of the device 1500. In some aspects, the receiving component 1502 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) and provide the processed signals to one or more other components of the device 1500. In some aspects, the receiving component 1502 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of a UE as described with respect to FIG.

[0225]

[0233] The transmitting component 1504 may transmit a communication to the device 1506, such as a reference signal, control information, a data communication, or a combination thereof. In some aspects, one or more other components of the device 1500 may generate a communication and provide the generated communication to the transmitting component 1504 for transmission to the device 1506. In some aspects, the transmitting component 1504 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communication and transmit the processed signal to the device 1506. In some aspects, the transmitting component 1504 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of a UE as described with respect to FIG. 2. In some aspects, the transmitting component 1504 may be collocated with the receiving component 1502 in a transceiver.

[0226]

[0234] The receiving component 1502 may receive a downlink communication on a first component carrier (e.g., from the apparatus 1506). The transmitting component 1504 may transmit (e.g., to the apparatus 1506) a deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In some aspects, the first uplink resource is on the second component carrier. In some aspects, the apparatus 1500 transmits the deferred HARQ feedback in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0227]

[0235] The switching component 1510 may perform a carrier switch from the first component carrier to the second component carrier after the receiving component 1502 receives the downlink communication and prior to the second uplink resource on the second component carrier in association with the quasi-static PUCCH cell pattern. In such an aspect, the carrier switch may be performed prior to the first uplink resource and the second uplink resource on the second component carrier.

[0228]

[0236] The transmitting component 1504 may transmit (eg, to the apparatus 1506) in the first uplink resource non-deferred HARQ feedback associated with another downlink communication.

[0229]

[0237] The transmitting component 1504 may transmit (eg, to the apparatus 1506) non-deferred HARQ feedback associated with the third downlink communication in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0230]

[0238] The switching component 1510 may remain on the first component carrier until the deferred HARQ feedback is transmitted by the transmitting component 1504 on the second component carrier.

[0231]

[0239] The transmitting component 1504 may transmit (e.g., to the apparatus 1506) another subset of the multiple repetitions of the deferred HARQ feedback in a third uplink resource on the first component carrier that occurs after the second uplink resource.

[0232]

[0240] A dropping component 1508 may drop another subset of the multiple repetitions of the deferred HARQ feedback.

[0233]

[0241] The transmitting component 1504 may transmit (to the apparatus 1506) multiple repetitions of non-deferred HARQ feedback associated with another downlink communication within the first uplink resource.

[0234]

[0242] The number and arrangement of components shown in Figure 15 are provided as an example. In practice, there may be additional, fewer, different, or differently arranged components compared to those shown in Figure 15. Furthermore, two or more of the components shown in Figure 15 may be implemented within a single component, or a single component shown in Figure 15 may be implemented as multiple distributed components. Additionally or alternatively, a set of components (one or more) shown in Figure 15 may perform one or more functions described as being performed by another set of components shown in Figure 15.

[0235]

[0243] FIG. 16 is a block diagram of an example apparatus 1600 for wireless communication. The apparatus 1600 may be a UE (UE 120), or the UE may include the apparatus 1600. In some aspects, the apparatus 1600 includes a receiving component 1602 and a transmitting component 1604, which may be in communication with each other (e.g., via one or more buses or one or more other components). As shown, the apparatus 1600 may communicate with another apparatus 1606 (such as a UE, a base station, or another wireless communication device) using the receiving component 1602 and the transmitting component 1604. As further shown, the apparatus 1600 may include a communications manager 140. The communications manager 140 may include one or more of a dropping component 1608 or a switching component 1610, among other examples.

[0236]

[0244] In some aspects, the apparatus 1600 may be configured to perform one or more operations described herein with respect to FIGS. 3-8. Additionally or alternatively, the apparatus 1600 may be configured to perform one or more processes described herein, such as the process 1100 of FIG. 11. In some aspects, the apparatus 1600 or one or more components illustrated in FIG. 16 may include one or more components of a UE described with respect to FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 16 may be implemented within one or more components described with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0237]

[0245] The receiving component 1602 may receive communications from the device 1606, such as a reference signal, control information, data communications, or a combination thereof. The receiving component 1602 may provide the received communications to one or more other components of the device 1600. In some aspects, the receiving component 1602 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) and provide the processed signals to one or more other components of the device 1600. In some aspects, the receiving component 1602 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of a UE as described with respect to FIG.

[0238]

[0246] The transmitting component 1604 may transmit a communication to the device 1606, such as a reference signal, control information, a data communication, or a combination thereof. In some aspects, one or more other components of the device 1600 may generate a communication and provide the generated communication to the transmitting component 1604 for transmission to the device 1606. In some aspects, the transmitting component 1604 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communication and transmit the processed signal to the device 1606. In some aspects, the transmitting component 1604 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of a UE as described with respect to FIG. 2. In some aspects, the transmitting component 1604 may be collocated with the receiving component 1602 in a transceiver.

[0239]

[0247] The receiving component 1602 may receive a downlink communication on a first component carrier (e.g., from the device 1606). The transmitting component 1604 may transmit (e.g., to the device 1606) deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0240]

[0248] The switching component 1610 may perform a first carrier switch from the first component carrier to the second component carrier after receiving a downlink communication and prior to a first uplink resource on the second component carrier in association with the quasi-static PUCCH cell pattern.

[0241]

[0249] The switching component 1610 may perform a second carrier switch from the second component carrier to the first component carrier after the first uplink resource on the second component carrier and before the second uplink resource on the first component carrier in association with the quasi-static PUCCH cell pattern.

[0242]

[0250] The transmitting component 1604 may transmit (e.g., to the device 1606) non-deferred HARQ feedback associated with another downlink communication within at least one of the first uplink resource on the second component carrier or the second uplink resource on the first component carrier along with the deferred HARQ feedback.

[0243]

[0251] The transmitting component 1604 may transmit (eg, to the device 1606) non-deferred HARQ feedback associated with the third downlink communication in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0244]

[0252] The transmitting component 1604 may transmit (e.g., to the apparatus 1606) another subset of the multiple repetitions of the deferred HARQ feedback on a second component carrier that occurs after the first uplink resource in a third uplink resource after the first uplink resource.

[0245]

[0253] A dropping component 1608 may drop another subset of the multiple repetitions of the deferred HARQ feedback.

[0246]

[0254] The transmitting component 1604 may transmit (eg, to the apparatus 1606) multiple repetitions of non-deferred HARQ feedback associated with another downlink communication within the first uplink resource on the second component carrier.

[0247]

[0255] The number and arrangement of components shown in Figure 16 are provided as an example. In practice, there may be additional, fewer, different, or differently arranged components compared to those shown in Figure 16. Furthermore, two or more of the components shown in Figure 16 may be implemented within a single component, or a single component shown in Figure 16 may be implemented as multiple distributed components. Additionally or alternatively, a set of components (one or more) shown in Figure 16 may perform one or more functions described as being performed by another set of components shown in Figure 16.

[0248]

[0256] 17 is a block diagram of an example apparatus 1700 for wireless communication. The apparatus 1700 may be a base station (base station 110, DU 330, RU 340, CU 310), or the base station may include the apparatus 1700. In some aspects, the apparatus 1700 includes a receiving component 1702 and a transmitting component 1704, which may be in communication with each other (e.g., via one or more buses or one or more other components). As shown, the apparatus 1700 may communicate with another apparatus 1706 (such as a UE, a base station, or another wireless communication device) using the receiving component 1702 and the transmitting component 1704. As further shown, the apparatus 1700 may include a communications manager 150.

[0249]

[0257] In some aspects, the apparatus 1700 may be configured to perform one or more operations described herein with respect to FIGS. 3-8. Additionally or alternatively, the apparatus 1700 may be configured to perform one or more processes described herein, such as the process 1200 of FIG. 12. In some aspects, the apparatus 1700 or one or more components illustrated in FIG. 17 may include one or more components of a base station described with respect to FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 17 may be implemented within one or more components described with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0250]

[0258] The receiving component 1702 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1706. The receiving component 1702 may provide the received communications to one or more other components of the device 1700. In some aspects, the receiving component 1702 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and provide the processed signals to one or more other components of the device 1700. In some aspects, the receiving component 1702 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof of a base station as described with respect to FIG.

[0251]

[0259] The transmitting component 1704 may transmit a communication to the device 1706, such as a reference signal, control information, a data communication, or a combination thereof. In some aspects, one or more other components of the device 1700 may generate a communication and provide the generated communication to the transmitting component 1704 for transmission to the device 1706. In some aspects, the transmitting component 1704 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communication and transmit the processed signal to the device 1706. In some aspects, the transmitting component 1704 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the base station described with respect to FIG. 2. In some aspects, the transmitting component 1704 may be collocated with the receiving component 1702 in a transceiver.

[0252]

[0260] The transmitting component 1704 may transmit the downlink communication on the first component carrier (e.g., to the device 1706). The receiving component 1702 may receive (e.g., from the device 1706) deferred HARQ feedback associated with the downlink communication in a second uplink resource on the second component carrier that occurs after the first uplink resource on the second component carrier.

[0253]

[0261] The receiving component 1702 may receive (eg, from the apparatus 1706) non-deferred HARQ feedback associated with another downlink communication within the first uplink resource.

[0254]

[0262] The receiving component 1702 may receive (eg, from the apparatus 1706) non-deferred HARQ feedback associated with a third downlink communication in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0255]

[0263] The transmitting component 1704 may transmit (eg, to the device 1706) a configuration associated with providing deferred HARQ feedback in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0256]

[0264] The receiving component 1702 may receive (eg, from the apparatus 1706) another subset of the multiple repetitions of the deferred HARQ feedback within a third uplink resource on the first component carrier that occurs after the second uplink resource.

[0257]

[0265] The receiving component 1702 may receive (eg, from the apparatus 1706) multiple repetitions of non-deferred HARQ feedback associated with another downlink communication within a first uplink resource.

[0258]

[0266] The number and arrangement of components shown in Figure 17 are provided as an example. In practice, there may be additional, fewer, different, or differently arranged components compared to those shown in Figure 17. Furthermore, two or more of the components shown in Figure 17 may be implemented within a single component, or a single component shown in Figure 17 may be implemented as multiple distributed components. Additionally or alternatively, a set of components (one or more) shown in Figure 17 may perform one or more functions described as being performed by another set of components shown in Figure 17.

[0259]

[0267] 18 is a block diagram of an example apparatus 1800 for wireless communication. The apparatus 1800 may be a base station, or a base station may include the apparatus 1800. In some aspects, the apparatus 1800 includes a receiving component 1802 and a transmitting component 1804, which may be in communication with one another (e.g., via one or more buses or one or more other components). As shown, the apparatus 1800 may communicate with another apparatus 1806 (such as a UE, a base station, or another wireless communication device) using the receiving component 1802 and the transmitting component 1804. As further shown, the apparatus 1800 may include a communications manager 150.

[0260]

[0268] In some aspects, the apparatus 1800 may be configured to perform one or more operations described herein with respect to FIGS. 3-8. Additionally or alternatively, the apparatus 1800 may be configured to perform one or more processes described herein, such as the process 1300 of FIG. 13. In some aspects, the apparatus 1800 or one or more components illustrated in FIG. 18 may include one or more components of a base station described with respect to FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 18 may be implemented within one or more components described with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0261]

[0269] The receiving component 1802 may receive communications from the device 1806, such as a reference signal, control information, data communications, or a combination thereof. The receiving component 1802 may provide the received communications to one or more other components of the device 1800. In some aspects, the receiving component 1802 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) and provide the processed signals to one or more other components of the device 1800. In some aspects, the receiving component 1802 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of a base station as described with respect to FIG.

[0262]

[0270] The transmitting component 1804 may transmit a communication to the device 1806, such as a reference signal, control information, a data communication, or a combination thereof. In some aspects, one or more other components of the device 1800 may generate a communication and provide the generated communication to the transmitting component 1804 for transmission to the device 1806. In some aspects, the transmitting component 1804 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communication and transmit the processed signal to the device 1806. In some aspects, the transmitting component 1804 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the base station described with respect to FIG. 2. In some aspects, the transmitting component 1804 may be collocated with the receiving component 1802 in a transceiver.

[0263]

[0271] The transmitting component 1804 may transmit a downlink communication on a first component carrier (e.g., to the device 1806). The receiving component 1802 may receive (e.g., from the device 1806) deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0264]

[0272] The receiving component 1802 may receive (e.g., from the apparatus 1806) non-deferred HARQ feedback associated with another downlink communication within at least one of the first uplink resource on the second component carrier or the second uplink resource on the first component carrier along with the deferred HARQ feedback.

[0265]

[0273] The receiving component 1802 may receive (eg, from the apparatus 1806) non-deferred HARQ feedback associated with a third downlink communication in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0266]

[0274] The transmitting component 1804 may transmit (eg, to the device 1806) a configuration associated with providing deferred HARQ feedback in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0267]

[0275] The receiving component 1802 may receive (e.g., from the apparatus 1806) another subset of the multiple repetitions of the deferred HARQ feedback on a second component carrier that occurs after the first uplink resource within a third uplink resource after the first uplink resource.

[0268]

[0276] The receiving component 1802 may receive (eg, from the apparatus 1806) multiple repetitions of non-deferred HARQ feedback associated with another downlink communication within a first uplink resource on a second component carrier.

[0269]

[0277] The number and arrangement of components shown in Figure 18 are provided as an example. In practice, there may be additional, fewer, different, or differently arranged components compared to those shown in Figure 18. Furthermore, two or more of the components shown in Figure 18 may be implemented within a single component, or a single component shown in Figure 18 may be implemented as multiple distributed components. Additionally or alternatively, a set of components (one or more) shown in Figure 18 may perform one or more functions described as being performed by another set of components shown in Figure 18.

[0270]

[0278] The following provides a summary of several aspects of the disclosure.

[0271]

[0279] Aspect 1: A method performed by a wireless communications device, the method including receiving a downlink communication on a first component carrier; and dropping deferred HARQ feedback associated with the downlink communication on a second component carrier in association with the deferred HARQ feedback exceeding an available size in uplink resources.

[0272]

[0280] Aspect 2: The method of aspect 1, wherein the deferred HARQ feedback is deferred from another uplink resource on the first component carrier before an uplink resource on a second component carrier based at least in part on a collision between a downlink resource on the first component carrier and another uplink resource on the first component carrier.

[0273]

[0281] Aspect 3: The method of aspect 1 or 2, further comprising: performing a carrier switch from the first component carrier to the second component carrier after receiving downlink communication and prior to uplink resources on the second component carrier in association with a quasi-static PUCCH cell pattern.

[0274]

[0282] Aspect 4: The method of one or more of aspects 1-3, further comprising transmitting non-deferred HARQ feedback associated with another downlink communication in uplink resources.

[0275]

[0283] Aspect 5: The method of one or more of aspects 1-4, further comprising dropping non-deferred HARQ feedback associated with another downlink communication in the uplink resource.

[0276]

[0284] Aspect 6: The method of one or more of aspects 1-5, wherein dropping the deferred HARQ feedback includes dropping the deferred HARQ feedback based at least in part on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in an uplink resource associated with the deferred HARQ feedback.

[0277]

[0285] Aspect 7: The method of one or more of aspects 1-6, wherein dropping the deferred HARQ feedback includes dropping the deferred HARQ feedback based at least in part on a configuration received in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0278]

[0286] Example 8: The method according to one or more of Examples 1 to 7, wherein the second component carrier is associated with a target PUCCH carrier, and the uplink resource is included within a target slot on the target PUCCH carrier.

[0279]

[0287] Aspect 9: The method of one or more of aspects 1 to 8, wherein the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and dropping the deferred HARQ feedback on the second component carrier includes dropping at least a subset of the multiple repetitions of the deferred HARQ feedback on the second component carrier.

[0280]

[0288] Aspect 10: The method of aspect 9, further comprising transmitting another subset of the multiple repetitions of the deferred HARQ feedback on at least one of the first component carrier or the second component carrier in another uplink resource after the uplink resource.

[0281]

[0289] Aspect 11: The method of aspect 9, further comprising dropping non-deferred HARQ feedback associated with another downlink communication in uplink resources.

[0282]

[0290] Aspect 12: The method of aspect 9, further comprising dropping non-deferred HARQ feedback associated with another downlink communication in the uplink resources.

[0283]

[0291] Aspect 13: The method of one or more of aspects 1-12, wherein the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and dropping the deferred HARQ feedback on the second component carrier includes dropping at least a subset of the multiple repetitions of the deferred HARQ feedback on the second component carrier based at least in part on an amount of the multiple repetitions of the deferred HARQ feedback that collide with at least one of the downlink communication or another downlink communication satisfying a threshold.

[0284]

[0292] Aspect 14: A method performed by a wireless communications device, the method including receiving a downlink communication on a first component carrier and transmitting deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource. In such aspects, the first uplink resource may be on the second component carrier. Further, in such aspects, the wireless communications device may transmit the deferred HARQ feedback in the second uplink resource in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource.

[0285]

[0293] Aspect 15: The method of aspect 14, wherein the deferred HARQ feedback is deferred from a third uplink resource on the first component carrier before the first uplink resource and the second uplink resource on the second component carrier based at least in part on a collision between the downlink resource on the first component carrier and the third uplink resource on the first component carrier.

[0286]

[0294] Aspect 16: The method of aspect 14 or 15, further comprising performing a carrier switch from the first component carrier to the second component carrier after receiving the downlink communication and before the second uplink resource on the second component carrier in association with the semi-static PUCCH cell pattern. In such an aspect, the carrier switch may be performed before the first uplink resource and the second uplink resource on the second component carrier.

[0287]

[0295] Example 17: The method according to one or more of Examples 14 to 16, further comprising: transmitting, within the first uplink resource, non-deferred HARQ feedback associated with another downlink communication.

[0288]

[0296] Aspect 18: The method according to one or more of aspects 14 to 17, wherein the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, the method further including transmitting, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with a second downlink communication.

[0289]

[0297] Aspect 19: The method of aspect 18, further comprising transmitting non-deferred HARQ feedback associated with a third downlink communication in a second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0290]

[0298] Example 20: The method according to one or more of Examples 14 to 19, further comprising: staying on the first component carrier until the deferred HARQ feedback is transmitted on the second component carrier.

[0291]

[0299] Aspect 21: The method of one or more of aspects 14 to 21, wherein transmitting the deferred HARQ feedback includes transmitting the deferred HARQ feedback in a second uplink resource based at least in part on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in a first uplink resource associated with the deferred HARQ feedback.

[0292]

[0300] Aspect 22: The method of one or more of aspects 14 to 22, wherein transmitting the deferred HARQ feedback in the second uplink resource includes transmitting the deferred HARQ feedback in the second uplink resource based at least in part on a configuration received in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0293]

[0301] Aspect 23: A method according to one or more of aspects 14 to 22, wherein a second component carrier is associated with a target PUCCH carrier, a first uplink resource is included within a first target slot on the target PUCCH carrier, and a second uplink resource is included within a second target slot on the target PUCCH carrier.

[0294]

[0302] Aspect 24: The method of one or more of aspects 14 to 23, wherein the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and wherein transmitting the deferred HARQ feedback in the second uplink resources on the second component carrier includes transmitting at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the second component carrier.

[0295]

[0303] Aspect 25: The method of aspect 24, further comprising: transmitting another subset of the multiple repetitions of the deferred HARQ feedback in a third uplink resource on the first component carrier that occurs after the second uplink resource.

[0296]

[0304] Example 26: The method of example 24 or 25, further comprising dropping another subset of the multiple repetitions of the deferred HARQ feedback.

[0297]

[0305]

[0041] Aspect 27: The method of aspect 24, further comprising: transmitting, within the first uplink resource, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0298]

[0306] Aspect 28: The method according to one or more of aspects 24 to 27, wherein the multiple repetitions of the deferred HARQ feedback include first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the method further includes transmitting at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication in a second uplink resource together with at least the subset of the multiple repetitions of the deferred HARQ feedback.

[0299]

[0307] Aspect 29: A method performed by a wireless communications device, the method including: receiving a downlink communication on a first component carrier; and, in association with the deferred HARQ feedback exceeding a threshold in the first uplink resource, transmitting deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier.

[0300]

[0308] Aspect 30: The method of aspect 29, wherein the deferred HARQ feedback is deferred from a third uplink resource on the first component carrier before a first uplink resource on the first component carrier and a second uplink resource on the second component carrier based at least in part on a collision between a downlink resource on the first component carrier and a third uplink resource on the first component carrier.

[0301]

[0309] Aspect 31: The method of aspect 29 or 30, further comprising: performing a first carrier switch from the first component carrier to the second component carrier after receiving the downlink communication and before the first uplink resource on the second component carrier in association with a quasi-static PUCCH cell pattern; and performing a second carrier switch from the second component carrier to the first component carrier after the first uplink resource on the second component carrier and before the second uplink resource on the first component carrier in association with the quasi-static PUCCH cell pattern.

[0302]

[0310] Aspect 32: The method according to one or more of aspects 29 to 31, further comprising transmitting, together with the deferred HARQ feedback, non-deferred HARQ feedback associated with another downlink communication within at least one of a first uplink resource on the second component carrier or a second uplink resource on the first component carrier.

[0303]

[0311] Aspect 33: The method according to one or more of aspects 29 to 33, wherein the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, and the method further includes transmitting, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with a second downlink communication.

[0304]

[0312] Aspect 34: The method of aspect 33, further comprising transmitting non-deferred HARQ feedback associated with a third downlink communication in a second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0305]

[0313] Aspect 35: The method of one or more of aspects 29 to 35, wherein transmitting the deferred HARQ feedback includes transmitting the deferred HARQ feedback in a second uplink resource based at least in part on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in a first uplink resource associated with the deferred HARQ feedback.

[0306]

[0314] Aspect 36: The method of one or more of aspects 29 to 35, wherein transmitting the deferred HARQ feedback in the second uplink resource includes transmitting the deferred HARQ feedback in the second uplink resource based at least in part on a configuration received in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0307]

[0315] Aspect 37: The method of one or more of aspects 29 to 36, wherein the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and wherein transmitting the deferred HARQ feedback in the second uplink resources on the first component carrier includes transmitting at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the first component carrier.

[0308]

[0316] Aspect 38: The method of aspect 37, further comprising transmitting, within a third uplink resource after the first uplink resource, another subset of the multiple repetitions of the deferred HARQ feedback on a second component carrier that appears after the first uplink resource.

[0309]

[0317] Example 39: The method of example 37 or 38, further comprising dropping another subset of the multiple repetitions of the deferred HARQ feedback.

[0310]

[0318] Aspect 40: The method according to one or more of aspects 37 to 39, further comprising transmitting, within a first uplink resource on a second component carrier, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0311]

[0319] Aspect 41: The method according to one or more of aspects 29 to 40, wherein the multiple repetitions of the deferred HARQ feedback include first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the method further includes transmitting at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication in a second uplink resource on the first component carrier together with at least the subset of the multiple repetitions of the deferred HARQ feedback.

[0312]

[0320] Aspect 42: A method performed by a wireless communications device, the method including: transmitting a downlink communication on a first component carrier; and receiving deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after a first uplink resource on the second component carrier.

[0313]

[0321] Aspect 43: The method of aspect 42, wherein the deferred HARQ feedback is deferred from a third uplink resource on the first component carrier before the first uplink resource and the second uplink resource on the second component carrier based at least in part on a collision between a downlink resource on the first component carrier and a third uplink resource on the first component carrier.

[0314]

[0322] Example 44: The method of example 42 or 44, further comprising receiving, within the first uplink resource, non-deferred HARQ feedback associated with another downlink communication.

[0315]

[0323] Aspect 45: The method according to one or more of aspects 42 to 44, wherein the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, the method further including receiving, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with a second downlink communication.

[0316]

[0324] Aspect 46: The method of one or more of aspects 45, further comprising receiving non-deferred HARQ feedback associated with a third downlink communication in a second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0317]

[0325] Aspect 47: The method of one or more of aspects 42 to 46, wherein receiving the deferred HARQ feedback includes receiving the deferred HARQ feedback in a second uplink resource based at least in part on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in a first uplink resource associated with the deferred HARQ feedback.

[0318]

[0326] Aspect 48: The method of one or more of aspects 42 to 47, further comprising transmitting a configuration associated with providing deferred HARQ feedback in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0319]

[0327] Aspect 49: The method of one or more of aspects 42 to 48, wherein a second component carrier is associated with a target physical uplink control channel (PUCCH) carrier, the first uplink resource is included within a first target slot on the target PUCCH carrier, and the second uplink resource is included within a second target slot on the target PUCCH carrier.

[0320]

[0328] Aspect 50: The method of one or more of aspects 42 to 50, wherein the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and receiving the deferred HARQ feedback in the second uplink resources on the second component carrier includes receiving at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the second component carrier.

[0321]

[0329] Aspect 51: The method of aspect 50, further comprising receiving another subset of the multiple repetitions of the deferred HARQ feedback within a third uplink resource on the first component carrier that occurs after the second uplink resource.

[0322]

[0330] Aspect 52: The method of aspect 50 or 51, further comprising receiving, within the first uplink resource, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0323]

[0331] Aspect 53: The method according to one or more of aspects 50 to 52, wherein the multiple repetitions of the deferred HARQ feedback include a first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the method further includes receiving, in a second uplink resource together with at least the subset of the multiple repetitions of the deferred HARQ feedback, at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication.

[0324]

[0332] Aspect 54: A method performed by a wireless communications device, the method including: transmitting a downlink communication on a first component carrier; and receiving deferred HARQ feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after a first uplink resource on the second component carrier.

[0325]

[0333] Aspect 55: The method of aspect 54, wherein the deferred HARQ feedback is deferred from a third uplink resource on the first component carrier before a first uplink resource on the first component carrier and a second uplink resource on the second component carrier based at least in part on a collision between a downlink resource on the first component carrier and a third uplink resource on the first component carrier.

[0326]

[0334] Aspect 56: The method of aspect 54 or 55, further comprising receiving, together with the deferred HARQ feedback, non-deferred HARQ feedback associated with another downlink communication within at least one of a first uplink resource on the second component carrier or a second uplink resource on the first component carrier.

[0327]

[0335] Aspect 57: The method according to one or more of aspects 54 to 56, wherein the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication, and the method further includes receiving, in a second uplink resource together with the first deferred HARQ feedback, a second deferred HARQ feedback associated with a second downlink communication.

[0328]

[0336] Aspect 58: The method of aspect 57, further comprising receiving non-deferred HARQ feedback associated with a third downlink communication in a second uplink resource together with the first deferred HARQ feedback and the second deferred HARQ feedback.

[0329]

[0337] Aspect 59: The method of one or more of aspects 54 to 58, wherein receiving the deferred HARQ feedback includes receiving the deferred HARQ feedback in a second uplink resource based at least in part on an amount of bits associated with the deferred HARQ feedback exceeding an amount of available bits in a first uplink resource associated with the deferred HARQ feedback.

[0330]

[0338] Aspect 60: The method of one or more of aspects 54 to 60, further comprising transmitting a configuration associated with providing deferred HARQ feedback in at least one of an RRC communication, a DCI communication, or a MAC-CE communication.

[0331]

[0339] Aspect 61: The method of one or more of aspects 54 to 60, wherein the deferred HARQ feedback includes multiple repetitions of the deferred HARQ feedback, and receiving the deferred HARQ feedback in the second uplink resources on the first component carrier includes receiving at least a subset of the multiple repetitions of the deferred HARQ feedback in the second uplink resources on the first component carrier.

[0332]

[0340] Aspect 62: The method of aspect 61, further comprising receiving, within a third uplink resource after the first uplink resource, another subset of the multiple repetitions of the deferred HARQ feedback on a second component carrier that appears after the first uplink resource.

[0333]

[0341] Aspect 63: The method of aspect 61 or 62, further comprising receiving, within a first uplink resource on a second component carrier, multiple repetitions of non-deferred HARQ feedback associated with another downlink communication.

[0334]

[0342] Aspect 64: The method according to one or more of aspects 54 to 63, wherein the multiple repetitions of the deferred HARQ feedback include a first multiple repetitions of a first deferred HARQ feedback associated with a first downlink communication, and the method further includes receiving, in a second uplink resource on the first component carrier together with at least the subset of the multiple repetitions of the deferred HARQ feedback, at least a subset of a second multiple repetitions of a second deferred HARQ feedback associated with a second downlink communication.

[0335]

[0343] Aspect 65: An apparatus for wireless communication in a device, the apparatus including a processor, a memory coupled to the processor, and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the methods described in one or more of aspects 1 to 13.

[0336]

[0344] Aspect 66: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the methods described in one or more of aspects 1 to 13.

[0337]

[0345] Aspect 67: An apparatus for wireless communication, comprising at least one means for performing the method according to one or more of aspects 1 to 13.

[0338]

[0346] Aspect 68: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform the methods described in one or more of aspects 1 to 13.

[0339]

[0347] Aspect 69: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the methods described in one or more of aspects 1-13.

[0340]

[0348] Aspect 70: An apparatus for wireless communication in a device, the apparatus including a processor, a memory coupled to the processor, and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the methods described in one or more of aspects 14-28.

[0341]

[0349] Aspect 71: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the methods described in one or more of aspects 14 to 28.

[0342]

[0350] Example 72: An apparatus for wireless communication, comprising at least one means for performing the method according to one or more of examples 14 to 28.

[0343]

[0351] Aspect 73: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform a method described in one or more of aspects 14 to 28.

[0344]

[0352] Aspect 74: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method described in one or more of aspects 14-28.

[0345]

[0353] Aspect 75: An apparatus for wireless communication in a device, the apparatus including a processor, a memory coupled to the processor, and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the methods described in one or more of aspects 29 to 41.

[0346]

[0354] Aspect 76: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, wherein the one or more processors are configured to perform the methods described in one or more of aspects 29 to 41.

[0347]

[0355] Example 77: An apparatus for wireless communication, comprising at least one means for performing the method described in one or more of examples 29 to 41.

[0348]

[0356] Aspect 78: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform the methods described in one or more of aspects 29 to 41.

[0349]

[0357] Aspect 79: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the methods described in one or more of aspects 29 to 41.

[0350]

[0358] Aspect 80: An apparatus for wireless communication in a device, the apparatus including a processor, a memory coupled to the processor, and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the methods described in one or more of aspects 42-52.

[0351]

[0359] Aspect 81: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the methods described in one or more of aspects 42 to 53.

[0352]

[0360] Example 82: An apparatus for wireless communication, comprising at least one means for performing the method described in one or more of examples 42 to 53.

[0353]

[0361] Aspect 83: A non-transitory computer-readable medium storing code for wireless communications, the code including instructions executable by a processor to perform the methods described in one or more of aspects 42 to 53.

[0354]

[0362] Aspect 84: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the methods described in one or more of aspects 42-53.

[0355]

[0363] Aspect 85: An apparatus for wireless communication in a device, the apparatus including a processor, a memory coupled to the processor, and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the methods described in one or more of aspects 54 to 64.

[0356]

[0364] Aspect 86: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the methods described in one or more of aspects 54 to 64.

[0357]

[0365] Example 87: An apparatus for wireless communication, comprising at least one means for performing the method described in one or more of examples 54 to 64.

[0358]

[0366] Aspect 88: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform a method described in one or more of aspects 54 to 64.

[0359]

[0367] Aspect 89: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the methods described in one or more of aspects 54-64.

[0360]

[0368] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations may be made in light of the disclosure or may be acquired from practice of the embodiments.

[0361]

[0369] The term "component" as used herein shall be broadly interpreted as hardware, firmware, or a combination of hardware and software. A "processor" as used herein is implemented in hardware, firmware, or a combination of hardware and software. The phrase "based on" as used herein shall be broadly interpreted to mean "based at least in part on." As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, or not equal to a threshold, among other examples, depending on the context. As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. As an example, "at least one of a, b, or c" shall encompass a, b, c, a+b, a+c, b+c, and a+b+c.

[0362]

[0370] Also, as used herein, the articles "a" and "an" are intended to include one or more items and may be used interchangeably with "one or more." Additionally, as used herein, the article "the" is intended to include one or more items referred to in relation to the article "the" and may be used interchangeably with "one or more." Additionally, the terms "set" and "group" are used to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items) and may be used interchangeably with "one or more." Where only one item is intended, the phrase "only one" or similar language is used. Also, as used herein, the terms "has," "having," "having," and similar terms are intended to be open-ended terms that do not limit the elements they modify (e.g., an element that "has" A may also have B). Additionally, as used herein, the term "or" is intended to be inclusive when used in a consecutive manner, and may be used interchangeably with "and / or," unless otherwise noted (e.g., when used in combination with "either" or "only one of").

[0363]

[0371] The various example logic, logic blocks, modules, circuits, and algorithmic processes described in connection with aspects disclosed herein may be implemented as electronic hardware, computer software, or a combination of both. Interoperability between hardware and software has been described generally in terms of functionality and is illustrated in the various example components, blocks, modules, circuits, and processes described herein. Whether such functionality is implemented in hardware or software depends on the particular application and design constraints imposed on the overall system.

[0364]

[0372] The hardware and data processing devices used to implement the various example logic, logic blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented or performed using general purpose single-chip or multi-chip processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, 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, or any conventional 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. In some aspects, certain processes and methods may be performed by circuitry specific to a given function.

[0365]

[0373] In one or more aspects, the functions described may be implemented in hardware, digital electronic circuitry, computer software, firmware, or any combination thereof, including the structures disclosed herein and their structural equivalents. Aspects of the subject matter described herein may also be implemented as one or more computer programs (such as one or more modules of computer program instructions) encoded on a computer storage medium for execution by or to control the operation of a data processing apparatus.

[0366]

[0374] If implemented in software, the functions may be stored on or transmitted over a computer-readable medium as one or more instructions or code. The processes of the methods or algorithms disclosed herein may be executed in processor-executable software modules that may reside on a computer-readable medium. Computer-readable media includes both computer storage media and communication media, including any medium that may enable a computer program to be transferred from one place to another. A storage medium may be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection may be properly termed a computer-readable medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically using lasers. Combinations of media described herein should also be included within the scope of computer readable media. Additionally, operations of a method or algorithm may reside on machine readable media and computer readable media, which may be embodied in a computer program product as one or any combination or set of codes and instructions.

[0367]

[0375] Various modifications to the embodiments described in this disclosure may be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the present disclosure. Thus, the claims are not intended to be limited to the embodiments shown herein, but are to be accorded the widest scope consistent with this disclosure, the principles and novel features disclosed herein.

[0368]

[0376] In addition, those skilled in the art will readily appreciate that the terms "upper" and "lower" may be used to facilitate description of the figures, and refer to relative positions that correspond to the orientation of the figure on a suitably oriented page, and may not reflect the proper orientation of any device in which it may be implemented.

[0369]

[0377] Some features described herein in the context of separate aspects may also be implemented in combination in a single aspect. Conversely, various features described in the context of a single aspect may also be implemented in multiple aspects separately or in any suitable subcombination. Moreover, features may be described as working in some combinations and may even be initially claimed as such, but one or more features from the claimed combination may, in some cases, be deleted from the combination, and the claimed combination may be directed to a subcombination or a variation of the subcombination.

[0370]

[0378] Similarly, although operations are shown in the figures in a particular order, this should not be understood as requiring such operations to be performed in the particular order or sequential order shown, or that all of the operations shown be performed, to achieve desirable results. Additionally, the figures may generally depict one or more exemplary processes in the form of a flow diagram. However, other operations not shown may be incorporated into the exemplary process depicted in the schematic. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the depicted operations. In some circumstances, multitasking and parallel processing may be advantageous. Furthermore, the separation of various system components in the described aspects should not be understood as requiring such separation in all aspects, and it should be understood that the described program components and systems may generally be integrated together in a single software product or packaged in multiple software products. Additionally, other aspects fall within the scope of the following claims. In some cases, the actions recited in the claims may be performed in a different order and still achieve desirable results.

Claims

1. a first interface configured to obtain downlink communications on a first component carrier; and the first interface or the second interface configured to output a deferred hybrid automatic repeat request (HARQ) feedback associated with the downlink communication for transmission in a second uplink resource on a second component carrier that occurs after the first uplink resource; A wireless communication device comprising:

2. 2. The wireless communications apparatus of claim 1, wherein the deferred HARQ feedback is deferred from the third uplink resource on the first component carrier before the first uplink resource and the second uplink resource on the second component carrier based at least in part on a collision between downlink resources on the first component carrier and a third uplink resource on the first component carrier.

3. 10. The wireless communications apparatus of claim 1, further comprising: a processing system configured to perform a carrier switch from the first component carrier to the second component carrier after receiving the downlink communication and prior to the second uplink resources on the second component carrier in association with a quasi-static physical uplink control channel (PUCCH) cell pattern.

4. The first interface or the second interface is 10. The wireless communications apparatus of claim 1, configured to output non-deferred HARQ feedback associated with another downlink communication for transmission in the first uplink resource.

5. the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication; The first interface or the second interface is 10. The wireless communications apparatus of claim 1, configured to output second deferred HARQ feedback associated with a second downlink communication for transmission in the second uplink resource along with the first deferred HARQ feedback.

6. The first interface or the second interface is 6. The wireless communications apparatus of claim 5, configured to output non-deferred HARQ feedback associated with a third downlink communication for transmission in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback.

7. the first interface or the second interface to output the deferred HARQ feedback for transmission in the second uplink resource; Radio Resource Control (RRC) communications; Downlink Control Information (DCI) communications, or Medium Access Control (MAC) Control Element (MAC-CE) communications; 10. The wireless communications apparatus of claim 1, configured to transmit the deferred HARQ feedback in the second uplink resources based at least in part on a configuration received in at least one of:

8. the second component carrier is associated with a target physical uplink control channel (PUCCH) carrier; the first uplink resource is included in a first target slot on the target PUCCH carrier; 10. The wireless communications apparatus of claim 1, wherein the second uplink resource is included within a second target slot on the target PUCCH carrier.

9. a first interface configured to output a downlink communication for transmission on a first component carrier; the first interface or the second interface configured to obtain a deferred hybrid automatic repeat request (HARQ) feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after a first uplink resource on the second component carrier; A wireless communication device comprising:

10. The first interface or the second interface is 10. The wireless communications apparatus of claim 9, configured to obtain, from within the first uplink resource, non-deferred HARQ feedback associated with another downlink communication.

11. the deferred HARQ feedback includes a first deferred HARQ feedback associated with a first downlink communication; The first interface or the second interface is 10. The wireless communications apparatus of claim 9, configured to obtain, in the second uplink resource along with the first deferred HARQ feedback, second deferred HARQ feedback associated with a second downlink communication.

12. The first interface or the second interface is 12. The wireless communications apparatus of claim 11, configured to obtain non-deferred HARQ feedback associated with a third downlink communication in the second uplink resource along with the first deferred HARQ feedback and the second deferred HARQ feedback.

13. the first interface or the second interface for receiving the deferred HARQ feedback; 10. The wireless communications apparatus of claim 9, configured to obtain the deferred HARQ feedback in the second uplink resource based at least in part on a quantity of bits associated with the deferred HARQ feedback exceeding a quantity of available bits in the first uplink resource associated with the deferred HARQ feedback.

14. 1. A method performed by a wireless communication device, comprising: receiving downlink communication on a first component carrier; transmitting a deferred hybrid automatic repeat request (HARQ) feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource; A method comprising:

15. 1. A method performed by a wireless communication device, comprising: transmitting a downlink communication on a first component carrier; receiving a deferred hybrid automatic repeat request (HARQ) feedback associated with the downlink communication in a second uplink resource on a second component carrier that occurs after the first uplink resource on the second component carrier; A method comprising:

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