Conflict handling for component carrier switching

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may group a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot. The UE may determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. The UE may transmit on the first component carrier or on the second component carrier in the common time slot or determine whether to switch transmit chains based at least in part on whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to U.S. Provisional Application No. 62 / 938,797, filed on November 21, 2019, entitled “COLLISION HANDLING FOR COMPONENTCARRIER SWITCHING,” which is expressly incorporated herein by reference.

[0003] public domain

[0004] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for conflict handling for component carrier switching.

[0005] background

[0006] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems 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 enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0007] A wireless communication network may include several base stations (BSs) capable of supporting communications for several user equipment (UEs). User equipment (UEs) may communicate with the base stations (BSs) via downlinks and uplinks. The downlink (or forward link) refers to the communication link from the BS to the UE, while the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit / receive point (TRP), new radio (NR) BS, 5G Node B, and so on.

[0008] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global levels. New Radio (NR) (which may also be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation for better integration with other open standards. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements to LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that adopt these technologies.

[0009] Overview

[0010] In some aspects, a method of performing wireless communications by a user equipment (UE) may include: grouping a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; and transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, or determining whether to switch the UE's transmit chain between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots.

[0011]

[0011] In some aspects, a UE for wireless communications may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: group a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; and transmit on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, or determine whether to switch the UE's transmit chain between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots.

[0012] In some aspects, a 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 UE, may cause the one or more processors to: group a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; and transmit on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, or determine whether to switch the UE's transmit chain between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots.

[0013] In some aspects, an apparatus for wireless communication may include means for grouping a first plurality of contiguous uplink time slots included in a first component carrier and a second plurality of contiguous uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of contiguous uplink time slots and at least a subset of the second plurality of contiguous uplink time slots overlap; means for determining whether an uplink transmission is scheduled in at least one of the first plurality of contiguous uplink time slots or the second plurality of contiguous uplink time slots; and means for transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of contiguous uplink time slots or the second plurality of contiguous uplink time slots, or means for determining whether to switch the transmit chain of the apparatus between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of contiguous uplink time slots or the second plurality of contiguous uplink time slots.

[0014] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems substantially as described herein with reference to and as illustrated in the accompanying figures and description.

[0015] The foregoing has broadly outlined the features and technical advantages of examples according to the present disclosure in an effort to make the following detailed description better understood. Additional features and advantages will be described hereinafter. The concepts and specific examples disclosed can be readily used as a basis for modifying or designing other structures for implementing the same purposes as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, as well as the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures is provided for illustration and description purposes and is not intended to define limitations on the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to understand in detail the features of the present disclosure set forth above, a more particular description of the content briefly summarized above may be obtained with reference to various aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are not to be considered limiting of its scope, as the description may admit to other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0017] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0018] Figure 2is a block diagram conceptually illustrating an example of a base station in communication with a user equipment (UE) in a wireless communication network according to various aspects of the present disclosure.

[0019] Figure 3A is a block diagram conceptually illustrating an example of a frame structure in a wireless communication network in accordance with various aspects of the present disclosure.

[0020] Figure 3B is a block diagram conceptually illustrating an example synchronous communication hierarchy in a wireless communication network in accordance with various aspects of the present disclosure.

[0021] Figures 4A-4D is a diagram illustrating one or more examples of conflict handling for component carrier switching according to various aspects of the present disclosure.

[0022] Figure 5 is a diagram illustrating example processes performed, for example, by a UE, according to various aspects of the present disclosure.

[0023] Figure 6 is a conceptual data flow diagram illustrating the flow of data between different modules / means / components in an example apparatus according to various aspects of the present disclosure.

[0024] Figure 7 is a diagram illustrating an example of a hardware implementation for a device employing a processing system according to various aspects of the present disclosure.

[0025] Detailed description

[0026] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and they will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently of any other aspect of the present disclosure or implemented in combination. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods that are practiced using a supplement to the various aspects of the present disclosure set forth herein or other other structures, functionality, or structure and functionality. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.

[0027] Several aspects of telecommunications systems will now be presented with reference to various devices and techniques. These devices and techniques are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0028] It should be noted that while various aspects may be described herein using terminology typically associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applicable in communication systems based on other generations, such as 5G and later generations, including NR technology.

[0029] Figure 1 1 is a diagram illustrating a wireless network 100 in which various aspects of the present disclosure may be practiced. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include several BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit reception point (TRP), etc. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0030] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1In the example shown in FIG, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB," "base station," "NR BS," "gNB," "TRP," "AP," "Node B," "5G NB," and "cell" may be used interchangeably herein.

[0031] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces, such as direct physical connections, virtual networks, and / or the like using any suitable transport network.

[0032] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , relay station 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station may also be referred to as a relay BS, relay base station, relay, or the like.

[0033] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0034] The network controller 130 may be coupled to a set of BSs and may provide coordination and control of these BSs. The network controller 130 may communicate with each BS via a backhaul. These BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0035] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE 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 or equipment, a biometric sensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or 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 via a wireless or wired medium.

[0036] Some UEs may be considered machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or to a network (e.g., a wide area network (such as the Internet) or a cellular network), for example, via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component, a memory component, etc.

[0037] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific radio access technology (RAT) and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. A frequency may also be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0038] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this scenario, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0039] As indicated above, Figure 1 are provided as examples. Other examples may differ from those described in Figure 1 Examples described.

[0040] Figure 2 A block diagram shows a design 200 of a base station 110 and a UE 120, which may be Figure 1 One for each base station and one for each UE in . Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T≧1 and R≧1.

[0041] At base station 110, transmit processor 220 may receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) and a secondary synchronization signal (SSS)). A transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, as applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and frequency upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively. According to various aspects described in greater detail below, position coding may be utilized to generate synchronization signals to convey additional information.

[0042] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0043] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.) from the controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236, if applicable, and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. Receive processor 238 may provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Network controller 130 may include communication unit 294, controller / processor 290, and memory 292.

[0044] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other components of the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or the like may perform one or more techniques associated with conflict handling for component carrier switching, as described in more detail elsewhere herein. Figure 2 Any other component of the may perform or direct e.g. Figure 5 The operations of process 500 and / or other processes as described herein may be performed. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include: a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, the one or more instructions, when executed by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Figure 5 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0045] In some aspects, UE 120 may include: means for grouping a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap, means for determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, means for transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, or determining whether to switch a transmit chain of the UE between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, etc. In some aspects, such means may include, in conjunction with Figure 2 One or more components of the UE 120 are depicted, such as the controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and so forth.

[0046] As indicated above, Figure 2 are provided as examples. Other examples may differ from those described in Figure 2 Examples described.

[0047] Figure 3AAn example frame structure 300 for frequency division duplex (FDD) in a telecommunications system (e.g., NR) is shown. The transmission timeline for each of the downlink and uplink may be divided into units of radio frames (sometimes referred to as frames). Each radio frame may have a predetermined duration (e.g., 10 milliseconds (ms)) and may be divided into a set of Z (Z ≥ 1) subframes (e.g., with indices 0 to Z-1). Each subframe may have a predetermined duration (e.g., 1 ms) and may include a set of time slots (e.g., in Figure 3A Each subframe 2 is shown in m time slots, where m is a parameter design for transmission, such as 0, 1, 2, 3, 4, etc.). Each time slot may include a set of L symbol periods. For example, each time slot may include fourteen symbol periods (e.g., Figure 3A ), seven symbol periods, or another number of symbol periods. In the case where a subframe includes two slots (e.g., when m=1), the subframe may include 2L symbol periods, where the 2L symbol periods in each subframe may be assigned indices 0 to 2L–1. In some aspects, the scheduling unit for FDD may be frame-based, subframe-based, slot-based, symbol-based, etc.

[0048] Although some techniques are described herein with reference to frames, subframes, time slots, etc., these techniques are equally applicable to other types of wireless communication structures that may be referred to in 5G NR using terms other than "frame," "subframe," "time slot," etc. In some aspects, a wireless communication structure may refer to a periodic, time-bounded communication unit defined by a wireless communication standard and / or protocol. Additionally or alternatively, a wireless communication structure may be used in conjunction with a wireless communication standard and / or protocol. Figure 3A The wireless communication structure configurations are different from those shown in FIG.

[0049] In certain telecommunications (e.g., NR), a base station may transmit synchronization (SYNC) signals. For example, a base station may transmit a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and the like on the downlink for each cell supported by the base station. The PSS and SSS may be used by the UE for cell search and acquisition. For example, the PSS may be used by the UE to determine symbol timing, while the SSS may be used by the UE to determine the physical cell identifier associated with the base station and frame timing. The base station may also transmit a physical broadcast channel (PBCH). The PBCH may carry some system information, such as system information that supports initial access by the UE.

[0050] In some aspects, a base station may transmit the PSS, SSS, and / or PBCH according to a synchronization communication level (e.g., a synchronization signal (SS) level) including multiple synchronization communications (e.g., SS blocks), as described below in conjunction with Figure 3B described.

[0051] Figure 3B FIG. 1 is a block diagram conceptually illustrating an example SS hierarchy, which is an example of a synchronous communication hierarchy. Figure 3B As shown in FIG, the SS hierarchy may include an SS burst set, which may include a plurality of SS bursts (identified as SS burst 0 to SS burst B-1, where B is the maximum number of repetitions of the SS burst that may be transmitted by the base station). As further shown, each SS burst may include one or more SS blocks (identified as SS block 0 to SS block (b max_SS -1), where b max_SS -1 is the maximum number of SS blocks that can be carried by an SS burst). In some aspects, different SS blocks may be beamformed differently. SS burst sets may be transmitted by a wireless node periodically, such as every X milliseconds, e.g. Figure 3B In some aspects, the SS burst set may have a fixed or dynamic length, as shown in Figure 3B is shown as Y milliseconds.

[0052] Figure 3B The SS burst set shown in is an example of a synchronous communication set, and other synchronous communication sets can be used in conjunction with the techniques described herein. Figure 3B The SS blocks shown in FIG. 5 are examples of synchronous communications, and other synchronous communications may be used in conjunction with the techniques described herein.

[0053] In some aspects, an SS block includes resources that carry PSS, SSS, PBCH, and / or other synchronization signals (e.g., a tertiary synchronization signal (TSS)) and / or synchronization channels. In some aspects, multiple SS blocks are included in an SS burst, and the PSS, SSS, and / or PBCH can be the same across each SS block of an SS burst. In some aspects, a single SS block can be included in an SS burst. In some aspects, an SS block can be at least four symbol periods in length, with each symbol carrying one or more of PSS (e.g., occupying one symbol), SSS (e.g., occupying one symbol), and / or PBCH (e.g., occupying two symbols).

[0054] In some aspects, the symbols of the SS block are consecutive, such as Figure 3B In some aspects, the symbols of an SS block are non-consecutive. Similarly, in some aspects, one or more SS blocks of an SS burst may be transmitted in contiguous radio resources (e.g., contiguous symbol periods) during one or more time slots. Additionally or alternatively, one or more SS blocks of an SS burst may be transmitted in non-consecutive radio resources.

[0055] In some aspects, an SS burst may have a burst periodicity, whereby each SS block of the SS burst is transmitted by the base station according to the burst period. In other words, the SS blocks may be repeated during each SS burst. In some aspects, an SS burst set may have a burst set periodicity, whereby each SS burst of the SS burst set is transmitted by the base station according to a fixed burst set periodicity. In other words, the SS burst may be repeated during each SS burst set.

[0056] The base station may transmit system information, such as system information blocks (SIBs), on the physical downlink shared channel (PDSCH) in certain time slots. The base station may transmit control information / data on the physical downlink control channel (PDCCH) in C symbol periods of a time slot, where B may be configurable for each time slot. The base station may transmit traffic data and / or other data on the PDSCH in the remaining symbol periods of each time slot.

[0057] As indicated above, Figure 3A and 3B are provided as examples. Other examples may differ from those regarding Figure 3A and 3B Examples described.

[0058] In a wireless network, a UE may be configured to perform carrier switching when performing one or more uplink transmissions. For example, in a carrier aggregation (CA) configuration, the UE may be configured to transmit one or more portions of an uplink transmission (or one or more uplink transmissions) on a first component carrier (e.g., a first frequency carrier), may be configured to switch a transmit antenna and / or transmit (Tx) chain of the UE from the frequency of the first component carrier to the frequency of a second component carrier, and may be configured to transmit one or more other portions of the uplink transmission (or one or more other uplink transmissions) on the second component carrier.

[0059] In some cases, a base station (BS) may schedule a UE to have sets of consecutive uplink time slots that at least partially overlap across a first component carrier and a second component carrier. In this case, it is possible for the BS to schedule the UE to perform simultaneous and / or at least partially overlapping uplink transmissions on these component carriers. If a UE is only capable of performing one uplink transmission on a component carrier at a time, scheduling simultaneous and / or at least partially overlapping uplink transmissions on these component carriers may be referred to as a collision. If the UE is unable to resolve the collision, the collision may result in both uplink transmissions being dropped, which may result in an increase in retransmissions for the UE, may cause delays in uplink transmissions, and so on.

[0060] Some aspects described herein provide techniques and apparatus for conflict handling for component carrier switching. In some aspects, a UE may be able to resolve conflicts between overlapping uplink transmissions by grouping. In some aspects, a UE may group a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot or a superslot. The UE may group the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots into a common time slot based at least in part on determining that at least a subset of the first plurality of consecutive uplink time slots overlaps with at least a subset of the second plurality of consecutive uplink time slots.

[0061] The UE may be able to determine whether a conflict has occurred in the common time slot by determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. If a conflict has occurred (e.g., if the UE determines that the first uplink transmission is scheduled in the first plurality of consecutive uplink time slots and the second uplink transmission is scheduled in the second plurality of consecutive uplink time slots), the UE may be able to resolve the conflict by applying one or more priority rules to the first component carrier and the second component carrier to determine whether to transmit the first uplink transmission or the second uplink transmission in the common time slot, and discarding or refraining from transmitting the untransmitted uplink transmission. In this way, the UE is able to resolve the conflict, which reduces the number of uplink retransmissions of the UE, reduces the delay of the uplink transmission, and the like.

[0062] Figures 4A-4D is a diagram illustrating one or more examples 400 of conflict handling for component carrier switching according to various aspects of the present disclosure. Figures 4A-4D As illustrated in , example 400 may include communications by a UE (e.g., UE 120). In some examples, the UE may be included in a wireless network (e.g., wireless network 100) and may be configured to communicate with one or more BSs (e.g., BS 110) on an uplink and / or downlink in the wireless network.

[0063] In a wireless network, a UE may be configured to perform uplink carrier switching across multiple component carriers. For example, a UE may be configured to transmit an uplink transmission on a first component carrier (e.g., component carrier 1), and the UE's transmit (Tx) chain (e.g., a Tx chain including antenna 252, MOD 254, Tx MIMO processor 266, transmit processor 264, and / or other components) may be switched from the frequency of the first component carrier to the frequency of a second component carrier (e.g., component carrier 2) to transmit another uplink transmission, and / or vice versa. The uplink transmission may include one or more physical uplink control channel (PUCCH) communications, one or more physical uplink shared channel (PUSCH) communications, one or more sounding reference signals (SRS), one or more channel state information (CSI) reports, and / or other types of uplink communications.

[0064] In some aspects, component carrier 2 may include a time division duplex (TDD) component carrier. In some aspects, a TDD frequency carrier may be a high frequency carrier, such as a frequency carrier included in a millimeter wave (mmWave) band. A TDD frequency carrier may be an uplink resource (e.g., Figures 4A-4D time slots, symbols, subframes, etc., indicated by "U" in the , and downlink resources (e.g., Figures 4A-4D The UE may use receive antennas and / or receive (Rx) chains to receive downlink transmissions in the downlink resources and / or transmit antennas and / or transmit (Tx) chains to transmit uplink transmissions in the uplink resources.

[0065] In some aspects, component carrier 1 may include a frequency division duplex (FDD) component carrier. In some aspects, the FDD frequency carrier may be a low frequency carrier, such as a frequency carrier included in a sub-6-GHz frequency band. The FDD component carrier may be a component carrier that includes multiple uplink resources (e.g., multiple subframes, time slots, code elements, etc.). In addition, the FDD component carrier may be a frequency carrier that is frequency division duplexed with another FDD component carrier that includes downlink resources configured for the UE. These uplink resources and downlink resources may be frequency division multiplexed across the FDD component carriers. The UE may use a transmit antenna and / or Tx chain to transmit uplink transmissions in uplink resources on the FDD frequency carrier, and / or may use a receive antenna and / or Rx chain to receive downlink transmissions in downlink resources on the other FDD frequency carrier.

[0066] like Figure 4AAs further described in

[15] , in some cases, a BS may schedule a UE to have sets of consecutive uplink time slots that at least partially overlap across component carrier 1 and component carrier 2. In this case, it is possible for the BS to schedule the UE to perform simultaneous and / or at least partially overlapping uplink transmissions on component carrier 1 and component carrier 2. If a UE is only capable of performing one uplink transmission on a component carrier at a time, scheduling simultaneous and / or at least partially overlapping uplink transmissions on both component carrier 1 and component carrier 2 may be referred to as a collision.

[0067] like Figure 4A In the embodiment of the present invention and as further indicated by reference numeral 402, to detect and resolve conflicts across multiple component carriers, the UE may group a first plurality of consecutive uplink time slots in component carrier 1 and a second plurality of consecutive uplink time slots in component carrier 2 into a common time slot. In some cases, the common time slot may also be referred to as a superslot. The UE may group the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots based at least in part on determining that the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots at least partially overlap in the time domain. In other words, at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap in the time domain.

[0068] The common time slot or super time slot may start at time T1 and end at time T2. If the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots completely overlap, T1 may occur at the beginning of the first time slot of the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots, and T2 may occur at the end of the last time slot of the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots. If the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots partially overlap (e.g., one of the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots starts before the other of the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots and / or ends before the other of the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots), T1 may occur at the beginning of the first time slot of the plurality of consecutive uplink time slots that starts earliest, and T2 may occur at the end of the last time slot of the plurality of consecutive uplink time slots that ends last.

[0069] like Figure 4AIn some embodiments, the BS may schedule an uplink transmission in each time slot of the first plurality of consecutive uplink time slots and / or schedule an uplink transmission in each time slot of the second plurality of consecutive uplink time slots. In some embodiments, the BS may schedule an uplink transmission in a subset of the first plurality of consecutive uplink time slots and / or a subset of the second plurality of consecutive uplink time slots. In some embodiments, the BS may schedule an uplink transmission in each time slot of the first plurality of consecutive uplink time slots and / or a subset of the second plurality of consecutive uplink time slots. In some embodiments, the BS may schedule an uplink transmission in each time slot of the first plurality of consecutive uplink time slots and in a subset of the second plurality of consecutive uplink time slots. In some embodiments, the BS may schedule an uplink transmission in a subset of the first plurality of consecutive uplink time slots and in each time slot of the second plurality of consecutive uplink time slots.

[0070] like Figure 4B In the embodiment and indicated by reference numeral 406, the UE may determine that a collision has occurred in the common time slot based at least in part on determining that an uplink transmission (uplink transmission 1) is scheduled in one or more time slots of the first plurality of consecutive uplink time slots and another uplink transmission (uplink transmission 2) is scheduled in one or more time slots of the second plurality of consecutive uplink time slots. In this case, the UE may use various factors, rules, etc. to resolve the collision.

[0071] In some aspects, the UE may resolve the conflict by determining whether to transmit uplink transmission 1 or uplink transmission 2 in the common time slot and whether to discard or refrain from transmitting the untransmitted uplink transmission. In this case, the UE may determine whether to transmit uplink transmission 1 or uplink transmission 2 in the common time slot based at least in part on the respective priorities associated with each of component carrier 1 and component carrier 2. For example, the UE may transmit the uplink transmission scheduled on the higher priority component carrier.

[0072] In some aspects, the UE may determine the priority of component carrier 1 and the priority of component carrier 2 based at least in part on signaling received from the BS. In this case, the BS may transmit radio resource control (RRC) communications, media access control control element (MAC-CE) communications, downlink control information (DCI) communications, etc. to the UE, which may indicate the priorities of component carrier 1 and component carrier 2. As an example, the BS may indicate that component carrier 1 is a higher priority relative to component carrier 2, and accordingly, the UE may transmit uplink transmission 1 in a common time slot and may drop uplink transmission 2 or refrain from transmitting uplink transmission 2 in the common time slot.

[0073] In some aspects, the UE may determine the priority of component carrier 1 and the priority of component carrier 2 based, at least in part, on which component carrier is associated with the UE's primary cell (PCell). In this case, the UE may determine that the component carrier associated with the UE's PCell is the higher priority component carrier. As an example, the UE may determine that component carrier 2 is associated with the UE's PCell, and accordingly, the UE may transmit uplink transmission 2 in a common time slot and may drop uplink transmission 1 or refrain from transmitting uplink transmission 1 in the common time slot.

[0074] In some aspects, the UE may determine the priority of component carrier 1 and the priority of component carrier 2 based at least in part on which component carrier is the lower-frequency component carrier. In this case, the UE may determine that the component carrier associated with the lowest frequency is the higher-priority component carrier because the lower-frequency component carrier may be more reliable relative to the higher-frequency component carrier. As an example, the UE may determine that component carrier 1 is the lower-frequency component carrier relative to component carrier 2, and accordingly, the UE may transmit uplink transmission 1 in the common time slot and may drop uplink transmission 2 or refrain from transmitting uplink transmission 2 in the common time slot.

[0075] As an alternative and / or in addition to resolving conflicts, the UE may be configured to detect conflicts as error situations. In other words, if the UE detects a conflict, the UE may determine that an error has occurred (e.g., a scheduling error). In this case, the UE may perform various actions based at least in part on determining that an error has occurred, such as transmitting an indication that an error has occurred to the BS that scheduled uplink transmission 1 and uplink transmission 2, refraining from transmitting uplink transmission 1 and uplink transmission 2, transmitting uplink transmission 1 or uplink transmission 2 (e.g., and discarding or refraining from transmitting the untransmitted uplink transmission), transmitting an uplink transmission in the UE's PCell, and the like.

[0076] like Figure 4C As shown in , in some cases, the UE may receive explicit signaling (e.g., RRC communication, MAC-CE communication, DCI communication, etc. from the BS) scheduling uplink transmissions in the first plurality of consecutive uplink time slots (or in the second plurality of consecutive uplink time slots). In this case, the UE may determine that a collision has not occurred in the common time slot because the UE may not have received explicit signaling indicating that another uplink transmission is scheduled in the second plurality of consecutive uplink time slots.

[0077] like Figure 4CIn the embodiment of the present invention, and as further shown by reference numeral 408, the UE may transmit an uplink transmission based at least in part on determining whether any scheduling signaling has been received for a second plurality of consecutive uplink time slots. Accordingly, the UE may search for dynamic, persistent and / or periodic, semi-persistent, and / or other types of scheduling signaling that may indicate that another uplink transmission is scheduled in the second plurality of consecutive uplink time slots. In this case, the UE may search for various scheduling signaling in a particular order. For example, the order may include first searching the DCI associated with the second plurality of consecutive uplink time slots for scheduling signaling, and then searching the RRC configuration associated with the second plurality of consecutive uplink time slots for scheduling signaling after searching the DCI. For example, the order may include first searching the RRC configuration associated with the second plurality of consecutive uplink time slots for scheduling signaling, and then searching the DCI associated with the second plurality of consecutive uplink time slots for scheduling signaling after searching the RRC configuration.

[0078] If the UE is unable to locate scheduling signaling that schedules another uplink transmission in the second plurality of consecutive uplink time slots, the UE may transmit the uplink transmission in the first plurality of consecutive uplink time slots. If the UE locates scheduling signaling that schedules another uplink transmission in the second plurality of consecutive uplink time slots, the UE may determine that a collision has occurred and may use the above combined Figure 4B One or more techniques are described to resolve the conflict and / or determine that an error has occurred.

[0079] In some aspects, if the UE resolves the conflict by determining to perform carrier switching on the UE's Tx chain (e.g., switching from component carrier 1 to component carrier 2, or switching from component carrier 2 to component carrier 1), the UE can determine when to perform the carrier switching. In some aspects, the UE can perform carrier switching during the first TDD time slot that occurs after the permitted carrier switching boundary (e.g., the first time slot of the second plurality of consecutive uplink time slots on component carrier 2). In some aspects, the first TDD time slot can be the first time slot in the shared time slot. Accordingly, in these examples, the UE can perform carrier switching in the first TDD time slot, regardless of whether scheduling signaling for other TDD time slots in the shared time slot is received simultaneously with the scheduling signaling for the first TDD time slot.

[0080] In some aspects, the UE may perform carrier switching during a first TDD slot that occurs after a permitted carrier switching boundary and any other TDD slot for which scheduling signaling is received concurrently with the receipt of scheduling signaling for the first TDD slot. In these examples, if scheduling signaling is received for multiple TDD slots, the scheduling signaling may indicate a transmit precoder matrix indicator (TPMI) of [0,1] or [1,1] and / or two sounding reference signal (SRS) ports. If scheduling signaling is received for a single TDD slot, the uplink transmission may be a no-grant transmission, a PUCCH transmission, a scheduling request, a random access channel (RACH) communication, a transmission with a TPMI of [1,0], a PUSCH granted via DCI format 0_0 communication, a grant for a single port configuration, and the like. In some aspects, the UE may perform carrier switching at each TDD slot boundary of component carrier 2.

[0081] In some aspects, after performing an uplink transmission (e.g., in a first plurality of consecutive uplink time slots or a second plurality of consecutive uplink time slots), the UE may perform carrier switching at the end of the common time slot to switch the UE's Tx chain back to the specific or default component carrier. For example, if the designated or default component carrier is component carrier 1 and the UE performs an uplink transmission in a second plurality of consecutive uplink time slots on component carrier 2, the UE may perform carrier switching at the end of the common time slot (or after performing an uplink transmission in the common time slot) to switch the UE's Tx chain to component carrier 1. As another example, if the designated or default component carrier is component carrier 2 and the UE performs an uplink transmission in a first plurality of consecutive uplink time slots on component carrier 1, the UE may perform carrier switching at the end of the common time slot (or after performing an uplink transmission in the common time slot) to switch the UE's Tx chain to component carrier 2. In some aspects, if the UE performs an uplink transmission on the designated or default component carrier, the UE may refrain from performing carrier switching at the end of the common time slot.

[0082] like Figure 4D As shown in , in some cases, uplink transmissions may not be scheduled in the first plurality of consecutive uplink time slots and may not be scheduled in the second plurality of consecutive uplink time slots. In this case, the UE has no uplink transmission to transmit in the common time slot and may determine that no collision has occurred.

[0083] like Figure 4D, and further indicated by reference numeral 410, if no uplink transmission is scheduled in the common time slot, the UE may determine whether to still perform carrier switching on the UE's Tx chain during the common time slot. In this case, the UE may determine whether to switch the UE's Tx chain from the frequency of component carrier 1 to component carrier 2 during the common time slot, and / or may determine whether to switch the UE's Tx chain from the frequency of component carrier 2 to component carrier 1 during the common time slot.

[0084] In some cases, the UE may determine to refrain from performing carrier switching for the UE's Tx chain during a common time slot unless explicit scheduling signaling (e.g., scheduling signaling scheduling uplink transmissions) is received, which may save power at the UE. In some aspects, the UE may determine to switch the UE's Tx chain to a default component carrier during a common time slot. In some aspects, the UE may determine to switch the UE's Tx chain to a component carrier associated with the UE's PCell during a common time slot. In some aspects, the UE may determine to switch the UE's Tx chain to a lowest frequency component carrier or a lower frequency component carrier (e.g., the lower frequency component carrier of component carrier 1 and component carrier 2) during a common time slot.

[0085] In this manner, the UE may be able to resolve conflicts between overlapping uplink transmissions by grouping. The UE may group a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot or a superslot. The UE may group the first plurality of consecutive uplink time slots and the second plurality of consecutive uplink time slots into a common time slot based at least in part on determining that at least a subset of the first plurality of consecutive uplink time slots overlaps with at least a subset of the second plurality of consecutive uplink time slots. The UE may be able to determine whether a conflict has occurred in the common time slot by determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. If a conflict has occurred (e.g., if the UE determines that a first uplink transmission is scheduled in a first plurality of consecutive uplink time slots and a second uplink transmission is scheduled in a second plurality of consecutive uplink time slots), the UE may be able to resolve the conflict by applying one or more priority rules to the first component carrier and the second component carrier to determine whether to transmit the first uplink transmission or the second uplink transmission in a common time slot, and discarding or refraining from transmitting the untransmitted uplink transmission. In this way, the UE is able to resolve the conflict, which reduces the number of uplink retransmissions of the UE, reduces the delay of the uplink transmission, and so on.

[0086] As indicated above, Figures 4A-4D Provided as one or more examples. Other examples may differ from those regarding Figures 4A-4DFor example, although the above combination Figures 4A-4D The illustrated and described examples include FDD component carriers and TDD component carriers, but the techniques described herein can be used in scenarios where the UE is configured with two TDD component carriers, two FDD component carriers, and so on. Furthermore, the techniques described herein can be used in scenarios where the UE is configured with more than two component carriers, where the UE is configured with multiple component carrier groups, and so on. In scenarios where the UE is configured with multiple component carrier groups, the component carriers in a component carrier group can be configured such that no more than one uplink transmission is scheduled at a given time in the component carrier group, and carrier switching is not required in the component carrier group. Furthermore, scheduling in the component carrier group can be provided in the PCell to reduce the complexity of detecting collisions, and / or only one component carrier in the component carrier group can be permitted to be configured with an uplink timeslot so that the UE only needs to check the component carrier that is configured with an uplink timeslot.

[0087] Figure 5 is a diagram illustrating an example process 500, performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 500 is an example in which a UE (eg, UE 120) performs operations associated with conflict handling for component carrier switching.

[0088] like Figure 5 As shown in , in some aspects, process 500 may include grouping a first plurality of consecutive uplink time slots included in a first component carrier and a second plurality of consecutive uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap (block 510). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may group the first plurality of consecutive uplink time slots included in the first component carrier and the second plurality of consecutive uplink time slots included in the second component carrier into a common time slot, as described above in conjunction with Figures 4A-4D In some aspects, at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap.

[0089] As in Figure 5As further shown in FIG. 5 , in some aspects, process 500 may include determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots (block 520). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, as described above in conjunction with FIG. Figures 4A-4D In some aspects, determining whether an uplink transmission is scheduled in at least one of a first plurality of consecutive uplink time slots or a second plurality of consecutive uplink time slots includes determining that a first uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots, determining that a second uplink transmission is scheduled in at least a subset of the second plurality of consecutive uplink time slots, and determining that a collision has occurred between the first uplink transmission and the second uplink transmission in a common time slot.

[0090] As in Figure 5 As further shown in FIG, if the UE determines that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots (block 520-yes), process 500 may include transmitting on the first component carrier or on the second component carrier in the common time slot (block 530). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may transmit on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, as described above in conjunction with Figures 4A-4D described.

[0091] In some aspects, transmitting on the first component carrier or on the second component carrier in the common time slot includes transmitting a first uplink transmission on the first component carrier in the common time slot or transmitting a second uplink transmission on the second component carrier in the common time slot based at least in part on a first priority associated with the first component carrier and a second priority associated with the second component carrier based at least in part on a determination that a collision has occurred. In some aspects, process 500 includes switching a transmit chain of the UE to a default component carrier after transmitting the first uplink transmission or the second uplink transmission. In some aspects, transmitting on the first component carrier or on the second component carrier in the common time slot includes transmitting the first uplink transmission on the first component carrier in the common time slot based at least in part on a determination that the first priority is greater than the second priority.

[0092] In some aspects, transmitting on the first component carrier or on the second component carrier in the common time slot includes: refraining from transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an error has occurred, transmitting a first uplink transmission on the first component carrier in the common time slot or a second uplink transmission on the second component carrier in the common time slot based at least in part on determining that an error has occurred, or transmitting the first uplink transmission on the first component carrier in the common time slot based at least in part on the first component carrier being associated with a primary cell of the UE based at least in part on determining that an error has occurred.

[0093] In some aspects, determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots includes: determining that an uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots, determining that scheduling signaling for the second plurality of consecutive uplink time slots has not been received, and transmitting the uplink transmission on the first component carrier in the common time slot based at least in part on determining that scheduling signaling for the second plurality of consecutive uplink time slots has not been received.

[0094] In some aspects, determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots includes searching DCI associated with the second plurality of consecutive uplink time slots for scheduling signaling, and searching radio resource control configurations associated with the second plurality of consecutive uplink time slots for scheduling signaling after searching the DCI associated with the second plurality of consecutive uplink time slots. In some aspects, determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots includes searching RRC configurations associated with the second plurality of consecutive uplink time slots for scheduling signaling, and searching downlink control information associated with the second plurality of consecutive uplink time slots for scheduling signaling after searching the RRC configurations associated with the second plurality of consecutive uplink time slots.

[0095] As in Figure 5As further shown in FIG, if the UE determines that no uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots (block 520-NO), then in some aspects, process 500 may include determining whether to switch the UE's transmit chain between the first component carrier and the second component carrier in the common time slot (block 540). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may determine whether to switch the UE's transmit chain between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots, as described above in conjunction with FIG. Figures 4A-4D described.

[0096] In some aspects, determining whether to switch the UE's transmit chain between the first component carrier and the second component carrier in the common time slot includes refraining from switching the UE's transmit chain between the first component carrier and the second component carrier in the common time slot until a scheduling communication is received that causes the UE to switch the UE's transmit chain between the first component carrier and the second component carrier; switching to the first component carrier in the common time slot based at least in part on the first component carrier being a default component carrier for the UE; switching to the first component carrier in the common time slot based at least in part on the first component carrier being associated with a primary cell of the UE; or switching to the first component carrier in the common time slot based at least in part on the first component carrier being a lower frequency component carrier relative to the second component carrier.

[0097] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0098] In some aspects, process 500 further includes determining that the first priority is greater than the second priority based at least in part on at least one of: the first component carrier is associated with a primary cell of the UE, the first component carrier is a lower frequency relative to the second component carrier, or an indication of the first priority and the second priority is received from the BS.

[0099] In some aspects, the first component carrier is included in a first component carrier group. In some aspects, simultaneous uplink transmissions across component carriers in the first component carrier group are not permitted. In some aspects, process 500 further includes receiving scheduling signaling from a primary cell in the first component carrier group, and receiving scheduling signaling from the primary cell in the second component carrier group. In some aspects, the first component carrier is a time division multiplexed component carrier supporting two or more transmit ports, and the first component carrier supports switching between consecutive uplink timeslots or within an uplink timeslot.

[0100] In some aspects, process 500 includes switching a transmit chain of the UE between a first component carrier and a second component carrier in a first time slot that occurs after a permitted carrier switching boundary based at least in part on determining that a collision has occurred. In some aspects, process 500 includes switching a transmit chain of the UE between the first component carrier and the second component carrier in a first time slot that occurs after a permitted carrier switching boundary and after one or more other time slots for which scheduling signaling was received concurrently with receiving scheduling signaling for the first time slot based at least in part on determining that a collision has occurred. In some aspects, process 500 includes switching a transmit chain of the UE between the first component carrier and the second component carrier before or after any time slot boundary of a shared time slot based at least in part on determining that a collision has occurred.

[0101] although Figure 5 Example blocks of process 500 are shown, but in some aspects, process 500 may include Figure 5 5. In some embodiments, the process 500 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of process 500 may be executed in parallel.

[0102] Figure 6 6 is a conceptual data flow diagram 600 illustrating the data flow between different modules / means / components in an example device 602. The device 602 may be a UE (e.g., UE 120). In some aspects, the device 602 includes a grouping module 604, a determination module 606, a Tx chain switching module 608, and a transmission module 610.

[0103] In some aspects, the grouping module 604 may group a first plurality of contiguous uplink time slots included in the first component carrier and a second plurality of contiguous uplink time slots included in the second component carrier into a common time slot. In some aspects, the grouping module 604 may group the first plurality of contiguous uplink time slots and the second plurality of contiguous uplink time slots into a common time slot based at least in part on determining that at least a subset of the first plurality of contiguous uplink time slots overlap with at least a subset of the second plurality of contiguous uplink time slots. In some aspects, the grouping module 604 may include a transmit processor (e.g., transmit processor 264), a Tx MIMO processor (e.g., Tx MIMO processor 266), a controller / processor (e.g., controller / processor 280), a memory (e.g., memory 282), and the like.

[0104] In some aspects, the determination module 606 may determine whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. In some aspects, the determination module 606 may include a transmit processor (e.g., transmit processor 264), a Tx MIMO processor (e.g., Tx MIMO processor 266), a controller / processor (e.g., controller / processor 280), a memory (e.g., memory 282), and the like.

[0105] In some aspects, the transmitting module 610 may transmit on the first component carrier or on the second component carrier in the common time slot. In some aspects, the transmitting module 610 may transmit on the first component carrier or on the second component carrier in the common time slot based at least in part on the determination module 606 determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. In some aspects, the transmitting module 610 may include an antenna (e.g., antenna 252), a MOD (e.g., MOD 254), a transmit processor (e.g., transmit processor 264), a Tx MIMO processor (e.g., Tx MIMO processor 266), a controller / processor (e.g., controller / processor 280), a memory (e.g., memory 282), and the like.

[0106] In some aspects, the Tx chain switching module 608 may determine whether to switch the Tx chain of the device 602 between the first component carrier and the second component carrier in the common time slot. In some aspects, the Tx chain switching module 608 may determine whether to switch the Tx chain of the device 602 between the first component carrier and the second component carrier in the common time slot based at least in part on the determination by module 606 that no uplink transmissions are scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots. In some aspects, the Tx chain switching module 608 may include an antenna (e.g., antenna 252), a MOD (e.g., MOD 254), a transmit processor (e.g., transmit processor 264), a Tx MIMO processor (e.g., Tx MIMO processor 266), a controller / processor (e.g., controller / processor 280), a memory (e.g., memory 282), and the like.

[0107] The apparatus may include executing Figure 5 The aforementioned process 500 and the like are additional modules for each block of the algorithm. Figure 5Each block in the aforementioned process 500, etc., may be performed by a module, and the device may include one or more of those modules. Each module may be one or more hardware components specifically configured to implement the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0108] Figure 6 The number and arrangement of modules shown in the diagram are provided as examples. In practice, there may be additional modules, fewer modules, different modules, or modules that are different from the modules in the diagram. Figure 6 Modules arranged differently than those shown in . Figure 6 Two or more modules shown in the figure may be implemented in a single module, or Figure 6 The single module shown in can be implemented as multiple distributed modules. Additionally or alternatively, Figure 6 A set of modules (eg, one or more modules) shown in FIG may perform the operations described as being performed by Figure 6 Another set of modules shown in FIG. 1 performs one or more functions.

[0109] Figure 7 is a diagram 700 illustrating an example of a hardware implementation for a device 602' employing a processing system 702. The device 602' may be a UE (eg, UE 120).

[0110] The processing system 702 can be implemented with a bus architecture generally represented by bus 704. Depending on the specific application and overall design constraints of the processing system 702, the bus 704 can include any number of interconnecting buses and bridges. The bus 704 links together various circuits including one or more processors and / or hardware modules (represented by processor 706, modules 604, 606, 608, and 610, and computer-readable media / memory 708). The bus 704 can also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further.

[0111] Processing system 702 may be coupled to a transceiver 710. Transceiver 710 is coupled to one or more antennas 712. Transceiver 710 provides a means for communicating with various other devices via a transmission medium. Transceiver 710 receives signals from one or more antennas 712, extracts information from the received signals, and provides the extracted information to processing system 702. Additionally, transceiver 710 receives information from processing system 702 (specifically, transmit module 610) and generates signals to be applied to one or more antennas 712 based at least in part on the received information. Processing system 702 includes a processor 706 coupled to a computer-readable medium / memory 708. Processor 706 is responsible for general processing, including the execution of software stored on computer-readable medium / memory 708. When executed by processor 706, the software causes processing system 702 to perform the various functions described herein for any particular device. Computer-readable medium / memory 708 may also be used to store data manipulated by processor 706 when executing the software. The processing system further includes at least one of modules 604, 606, 608, and 610. The modules may be software modules running in the processor 706, software modules residing / stored in the computer-readable medium / memory 708, one or more hardware modules coupled to the processor 806, or some combination thereof. The processing system 702 may be a component of the UE 120 and may include the memory 282 and / or at least one of the TX MIMO processor 266, the RX processor 258, and / or the controller / processor 280.

[0112] In some aspects, the apparatus 602 / 602' for wireless communication includes: means for grouping a first plurality of contiguous uplink time slots included in a first component carrier and a second plurality of contiguous uplink time slots included in a second component carrier into a common time slot, wherein at least a subset of the first plurality of contiguous uplink time slots and at least a subset of the second plurality of contiguous uplink time slots overlap; means for determining whether an uplink transmission is scheduled in at least one of the first plurality of contiguous uplink time slots or the second plurality of contiguous uplink time slots; means for transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of contiguous uplink time slots or the second plurality of contiguous uplink time slots; or means for determining whether to switch a UE's transmit chain between the first component carrier and the second component carrier in the common time slot based at least in part on determining that no uplink transmission is scheduled in at least one of the first plurality of contiguous uplink time slots or the second plurality of contiguous uplink time slots, and so on. The aforementioned means may be one or more of the aforementioned modules in the processing system 702 of the device 602 and / or device 602' configured to perform the functions recited by the aforementioned means. As described elsewhere herein, the processing system 702 may include the TX MIMO processor 266, the RX processor 258, and / or the controller / processor 280. In one configuration, the aforementioned means may be the TX MIMO processor 266, the RX processor 258, and / or the controller / processor 280 configured to perform the functions and / or operations recited herein.

[0113] Figure 7 are provided as examples. Other examples may differ from those incorporating Figure 7 Examples described.

[0114] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

[0115] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software.

[0116] 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, not equal to a threshold, etc., depending on the context.

[0117] It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit the aspects. Thus, the operation and behavior of these systems and / or methods are described herein without reference to specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods based, at least in part, on the description herein.

[0118] Although specific feature combinations are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. In fact, many of these features can be combined in a manner not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of the various aspects includes that each dependent claim is combined with each other claim in this group of claims. The phrase "at least one" quoting a column of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover: a, b, c, ab, ac, bc, and abc, as well as any combination with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other arrangement of a, b and c).

[0119] The elements, actions or instructions used herein should not be interpreted as critical or necessary unless explicitly described as such. Moreover, as used herein, the articles "one" and "a" are intended to include one or more items and can be used interchangeably with "one or more". Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, non-related items, a combination of related and non-related items, etc.) and can be used interchangeably with "one or more". Where intended to have only one item, the phrase "only one" or similar language is used. Furthermore, as used herein, the terms "having", "containing", "comprising" etc. are intended to be open terms. Furthermore, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated.

Claims

1. A method for performing wireless communication by a user equipment (UE), comprising: grouping a first plurality of consecutive uplink time slots included in the first component carrier and a second plurality of consecutive uplink time slots included in the second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; as well as transmitting on the first component carrier or on the second component carrier in the common timeslot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots, or A determination is made whether to switch a transmit chain of the UE between the first component carrier and the second component carrier in the common timeslot based at least in part on determining that no uplink transmissions are scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots.

2. The method of claim 1 , wherein determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots comprises: determining that a first uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots; determining that a second uplink transmission is scheduled in at least a subset of the second plurality of consecutive uplink time slots; as well as A determination is made that a collision has occurred between the first uplink transmission and the second uplink transmission in the common time slot.

3. The method of claim 2 , wherein transmitting on the first component carrier or on the second component carrier in the common time slot comprises: Based at least in part on determining that the collision has occurred, transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting a second uplink transmission on the second component carrier in the common time slot based at least in part on a first priority associated with the first component carrier and a second priority associated with the second component carrier.

4. The method of claim 3, further comprising: The transmit chain of the UE is switched to a default component carrier after transmitting the first uplink transmission or the second uplink transmission.

5. The method of claim 3 , wherein transmitting on the first component carrier or on the second component carrier in the common time slot comprises: The first uplink transmission is transmitted on the first component carrier in the common time slot based at least in part on a determination that the first priority is greater than the second priority.

6. The method of claim 5, further comprising: Determining that the first priority is greater than the second priority is based at least in part on at least one of: The first component carrier is associated with a primary cell of the UE, The first component carrier is of a lower frequency than the second component carrier, or An indication of the first priority and the second priority is received from a network node.

7. The method of claim 2, further comprising: determining that an error has occurred based at least in part on determining that the conflict has occurred; and wherein transmitting on the first component carrier or on the second component carrier in the common time slot comprises: refraining from transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that the error has occurred, transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on determining that the error has occurred, or The first uplink transmission is transmitted on the first component carrier in the common time slot based at least in part on determining that the error has occurred and based at least in part on the first component carrier being associated with a primary cell of the UE.

8. The method of claim 2, further comprising: Based at least in part on determining that the collision has occurred, the transmit chain of the UE is switched between the first component carrier and the second component carrier in a first time slot occurring after a permitted carrier switching boundary.

9. The method of claim 2, further comprising: Based at least in part on determining that the collision has occurred, switching the transmit chain of the UE between the first component carrier and the second component carrier in a first time slot that occurs after a permitted carrier switching boundary and after one or more other time slots for which scheduling signaling was received concurrently with or before the receipt of scheduling signaling for the first time slot.

10. The method of claim 2, further comprising: Based at least in part on determining that the collision has occurred, the transmit chain of the UE is switched between the first component carrier and the second component carrier before or after any slot boundary of the common time slot.

11. The method of claim 1 , wherein determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots comprises: determining that an uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots; determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots; as well as The uplink transmission is transmitted on the first component carrier in the common timeslot based at least in part on determining that scheduling signaling has not been received for the second plurality of consecutive uplink timeslots.

12. The method of claim 11 , wherein determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots comprises: searching downlink control information (DCI) associated with the second plurality of consecutive uplink time slots for scheduling signaling; as well as A radio resource control configuration associated with the second plurality of consecutive uplink time slots is searched for scheduling signaling after searching for the DCI associated with the second plurality of consecutive uplink time slots.

13. The method of claim 11 , wherein determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots comprises: searching a radio resource control (RRC) configuration associated with the second plurality of consecutive uplink time slots for scheduling signaling; as well as Downlink control information associated with the second plurality of consecutive uplink time slots is searched for scheduling signaling after searching for the RRC configuration associated with the second plurality of consecutive uplink time slots.

14. The method of claim 1 , wherein determining whether to switch the transmit chain of the UE between the first component carrier and the second component carrier in the common time slot comprises: refraining from switching the transmit chain of the UE between the first component carrier and the second component carrier in the common time slot until receiving a scheduling communication causing the UE to switch the transmit chain of the UE between the first component carrier and the second component carrier, switching to the first component carrier in the common timeslot based at least in part on the first component carrier being a default component carrier for the UE, switching to the first component carrier in the common timeslot based at least in part on the first component carrier being associated with a primary cell of the UE, or Switching to the first component carrier in the common timeslot is based at least in part on the first component carrier being a lower frequency relative to the second component carrier.

15. The method of claim 1, wherein the first component carrier is included in a first component carrier group; and The second component carrier is included in a second component carrier group.

16. The method of claim 15, wherein simultaneous uplink transmission across component carriers in the first component carrier group is not permitted; and Wherein, simultaneous uplink transmission across component carriers in the second component carrier group is not permitted.

17. The method of claim 15, further comprising: receiving scheduling signaling from a primary cell in the first component carrier group; as well as Scheduling signaling from a primary cell is received in the second component carrier group.

18. The method of claim 1, wherein the first component carrier is a time division multiplexing component carrier supporting two or more transmit ports; and The first component carrier supports switching between consecutive uplink timeslots or within an uplink timeslot.

19. A user equipment (UE) for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: grouping a first plurality of consecutive uplink time slots included in the first component carrier and a second plurality of consecutive uplink time slots included in the second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; as well as transmitting on the first component carrier or on the second component carrier in the common timeslot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots, or A determination is made whether to switch a transmit chain of the UE between the first component carrier and the second component carrier in the common timeslot based at least in part on determining that no uplink transmissions are scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots.

20. The UE of claim 19, wherein the one or more processors, upon determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots: determining that a first uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots; determining that a second uplink transmission is scheduled in at least a subset of the second plurality of consecutive uplink time slots; and A determination is made that a collision has occurred between the first uplink transmission and the second uplink transmission in the common time slot.

21. The UE of claim 20, wherein the one or more processors, when transmitting on the first component carrier or on the second component carrier in the common time slot: Based at least in part on determining that the collision has occurred, transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on a first priority associated with the first component carrier and a second priority associated with the second component carrier.

22. The UE of claim 21 , wherein the one or more processors are further configured to: The transmit chain of the UE is switched to a default component carrier after transmitting the first uplink transmission or the second uplink transmission.

23. The UE of claim 21 , wherein the one or more processors, when transmitting on the first component carrier or on the second component carrier in the common time slot: The first uplink transmission is transmitted on the first component carrier in the common time slot based at least in part on a determination that the first priority is greater than the second priority.

24. The UE of claim 23, wherein the one or more processors are further configured to: Determining that the first priority is greater than the second priority is based at least in part on at least one of: The first component carrier is associated with a primary cell of the UE, The first component carrier is of a lower frequency than the second component carrier, or An indication of the first priority and the second priority is received from a network node.

25. The UE of claim 20, wherein the one or more processors are further configured to: determining that an error has occurred based at least in part on determining that the conflict has occurred; and wherein the one or more processors, when transmitting on the first component carrier or on the second component carrier in the common time slot: refraining from transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that the error has occurred, transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on determining that the error has occurred, or The first uplink transmission is transmitted on the first component carrier in the common time slot based at least in part on determining that the error has occurred and based at least in part on the first component carrier being associated with a primary cell of the UE.

26. The UE of claim 20, wherein the one or more processors are further configured to: Based at least in part on determining that the collision has occurred, the transmit chain of the UE is switched between the first component carrier and the second component carrier in a first time slot occurring after a permitted carrier switching boundary.

27. The UE of claim 20, wherein the one or more processors are further configured to: Based at least in part on determining that the collision has occurred, switching the transmit chain of the UE between the first component carrier and the second component carrier in a first time slot that occurs after a permitted carrier switching boundary and after one or more other time slots for which scheduling signaling is received concurrently with receiving scheduling signaling for the first time slot.

28. The UE of claim 20, wherein the one or more processors are further configured to: Based at least in part on determining that the collision has occurred, the transmit chain of the UE is switched between the first component carrier and the second component carrier before or after any slot boundary of the common time slot.

29. The UE of claim 19 , wherein the one or more processors, upon determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots: determining that an uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots; determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots; as well as The uplink transmission is transmitted on the first component carrier in the common timeslot based at least in part on determining that scheduling signaling has not been received for the second plurality of consecutive uplink timeslots.

30. The UE of claim 29, wherein the one or more processors, upon determining that scheduling signaling for the second plurality of consecutive uplink time slots has not been received: searching downlink control information (DCI) associated with the second plurality of consecutive uplink time slots for scheduling signaling; and A radio resource control configuration associated with the second plurality of consecutive uplink time slots is searched for scheduling signaling after searching for the DCI associated with the second plurality of consecutive uplink time slots.

31. The UE of claim 29, wherein the one or more processors, upon determining that scheduling signaling for the second plurality of consecutive uplink time slots has not been received: searching a radio resource control (RRC) configuration associated with the second plurality of consecutive uplink time slots for scheduling signaling; and Downlink control information associated with the second plurality of consecutive uplink time slots is searched for scheduling signaling after searching for the RRC configuration associated with the second plurality of consecutive uplink time slots.

32. The UE of claim 19, wherein the one or more processors, when determining whether to switch the transmit chain of the UE between the first component carrier and the second component carrier in the common time slot: refraining from switching the transmit chain of the UE between the first component carrier and the second component carrier in the common time slot until receiving a scheduling communication causing the UE to switch the transmit chain of the UE between the first component carrier and the second component carrier, switching to the first component carrier in the common timeslot based at least in part on the first component carrier being a default component carrier for the UE, switching to the first component carrier in the common timeslot based at least in part on the first component carrier being associated with a primary cell of the UE, or Switching to the first component carrier in the common timeslot is based at least in part on the first component carrier being a lower frequency relative to the second component carrier.

33. The UE of claim 19, wherein the first component carrier is included in a first component carrier group; and The second component carrier is included in a second component carrier group.

34. The UE of claim 33, wherein simultaneous uplink transmission across component carriers in the first component carrier group is not permitted; and Wherein, simultaneous uplink transmission across component carriers in the second component carrier group is not permitted.

35. The UE of claim 33, wherein the one or more processors are further configured to: receiving scheduling signaling from a primary cell in the first component carrier group; and Scheduling signaling from a primary cell is received in the second component carrier group.

36. The UE of claim 19, wherein the first component carrier is a time division multiplexing component carrier supporting two or more transmit ports; and The first component carrier supports switching between consecutive uplink timeslots or within an uplink timeslot.

37. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to: grouping a first plurality of consecutive uplink time slots included in the first component carrier and a second plurality of consecutive uplink time slots included in the second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; as well as transmitting on the first component carrier or on the second component carrier in the common timeslot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots, or A determination is made whether to switch a transmit chain of the UE between the first component carrier and the second component carrier in the common timeslot based at least in part on determining that no uplink transmissions are scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots.

38. The non-transitory computer-readable medium of claim 37, wherein the one or more instructions that cause the one or more processors to determine that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots cause the one or more processors to: determining that a first uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots; determining that a second uplink transmission is scheduled in at least a subset of the second plurality of consecutive uplink time slots; and A determination is made that a collision has occurred between the first uplink transmission and the second uplink transmission in the common time slot.

39. The non-transitory computer-readable medium of claim 38, wherein the one or more instructions that cause the one or more processors to transmit on the first component carrier or on the second component carrier in the common time slot cause the one or more processors to: Based at least in part on determining that the collision has occurred, transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on a first priority associated with the first component carrier and a second priority associated with the second component carrier.

40. The non-transitory computer-readable medium of claim 39, wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: The transmit chain of the UE is switched to a default component carrier after transmitting the first uplink transmission or the second uplink transmission.

41. The non-transitory computer-readable medium of claim 39, wherein the one or more instructions that cause the one or more processors to transmit on the first component carrier or on the second component carrier in the common time slot cause the one or more processors to: The first uplink transmission is transmitted on the first component carrier in the common time slot based at least in part on a determination that the first priority is greater than the second priority.

42. The non-transitory computer-readable medium of claim 41 , wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: Determining that the first priority is greater than the second priority is based at least in part on at least one of: The first component carrier is associated with a primary cell of the UE, The first component carrier is of a lower frequency than the second component carrier, or An indication of the first priority and the second priority is received from a network node.

43. The non-transitory computer-readable medium of claim 38, wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: determining that an error has occurred based at least in part on determining that the conflict has occurred; and wherein the one or more instructions that cause the one or more processors to transmit on the first component carrier or on the second component carrier in the common time slot cause the one or more processors to: refraining from transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that the error has occurred, transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on determining that the error has occurred, or The first uplink transmission is transmitted on the first component carrier in the common time slot based at least in part on determining that the error has occurred and based at least in part on the first component carrier being associated with a primary cell of the UE.

44. The non-transitory computer-readable medium of claim 38, wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: Based at least in part on determining that the collision has occurred, the transmit chain of the UE is switched between the first component carrier and the second component carrier in a first time slot occurring after a permitted carrier switching boundary.

45. The non-transitory computer-readable medium of claim 38, wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: Based at least in part on determining that the collision has occurred, switching the transmit chain of the UE between the first component carrier and the second component carrier in a first time slot that occurs after a permitted carrier switching boundary and after one or more other time slots for which scheduling signaling is received concurrently with receiving scheduling signaling for the first time slot.

46. ​​The non-transitory computer-readable medium of claim 38, wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: Based at least in part on determining that the collision has occurred, the transmit chain of the UE is switched between the first component carrier and the second component carrier before or after any slot boundary of the common time slot.

47. The non-transitory computer-readable medium of claim 37, wherein the one or more instructions that cause the one or more processors to determine that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots cause the one or more processors to: determining that an uplink transmission is scheduled in at least a subset of the first plurality of consecutive uplink time slots; determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots; as well as The uplink transmission is transmitted on the first component carrier in the common timeslot based at least in part on determining that scheduling signaling has not been received for the second plurality of consecutive uplink timeslots.

48. The non-transitory computer-readable medium of claim 47, wherein the one or more instructions that cause the one or more processors to determine that scheduling signaling has not been received for the second plurality of consecutive uplink time slots cause the one or more processors to: searching downlink control information (DCI) associated with the second plurality of consecutive uplink time slots for scheduling signaling; and A radio resource control configuration associated with the second plurality of consecutive uplink time slots is searched for scheduling signaling after searching for the DCI associated with the second plurality of consecutive uplink time slots.

49. The non-transitory computer-readable medium of claim 47, wherein the one or more instructions that cause the one or more processors to determine that scheduling signaling has not been received for the second plurality of consecutive uplink time slots cause the one or more processors to: searching a radio resource control (RRC) configuration associated with the second plurality of consecutive uplink time slots for scheduling signaling; and Downlink control information associated with the second plurality of consecutive uplink time slots is searched for scheduling signaling after searching for the RRC configuration associated with the second plurality of consecutive uplink time slots.

50. The non-transitory computer-readable medium of claim 37, wherein the one or more instructions that cause the one or more processors to determine whether to switch the transmit chain of the UE between the first component carrier and the second component carrier in the common time slot cause the one or more processors to: refraining from switching the transmit chain of the UE between the first component carrier and the second component carrier in the common time slot until receiving a scheduling communication causing the UE to switch the transmit chain of the UE between the first component carrier and the second component carrier, switching to the first component carrier in the common timeslot based at least in part on the first component carrier being a default component carrier for the UE, switching to the first component carrier in the common timeslot based at least in part on the first component carrier being associated with a primary cell of the UE, or Switching to the first component carrier in the common timeslot is based at least in part on the first component carrier being a lower frequency relative to the second component carrier.

51. The non-transitory computer-readable medium of claim 37, wherein the first component carrier is included in a first component carrier group; and The second component carrier is included in a second component carrier group.

52. The non-transitory computer-readable medium of claim 51 , wherein simultaneous uplink transmissions across component carriers in the first component carrier group are not permitted; and Wherein, simultaneous uplink transmission across component carriers in the second component carrier group is not permitted.

53. The non-transitory computer-readable medium of claim 51 , wherein the one or more instructions, when executed by the one or more processors, further cause the one or more processors to: receiving scheduling signaling from a primary cell in the first component carrier group; and Scheduling signaling from a primary cell is received in the second component carrier group.

54. The non-transitory computer-readable medium of claim 37, wherein the first component carrier is a time division multiplexed component carrier supporting two or more transmit ports; and The first component carrier supports switching between consecutive uplink timeslots or within an uplink timeslot.

55. A device for wireless communication, comprising: means for grouping a first plurality of consecutive uplink time slots comprised in a first component carrier and a second plurality of consecutive uplink time slots comprised in a second component carrier into a common time slot, wherein at least a subset of the first plurality of consecutive uplink time slots and at least a subset of the second plurality of consecutive uplink time slots overlap; means for determining whether an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots; as well as means for transmitting on the first component carrier or on the second component carrier in the common timeslot based at least in part on determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots, or Means for determining whether to switch a transmit chain of the apparatus between the first component carrier and the second component carrier in the common timeslot based at least in part on determining that no uplink transmissions are scheduled in at least one of the first plurality of consecutive uplink timeslots or the second plurality of consecutive uplink timeslots.

56. The apparatus of claim 55, wherein the means for determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots comprises: means for determining that a first uplink transmission is scheduled in at least a subset of said first plurality of consecutive uplink time slots; means for determining that a second uplink transmission is scheduled in at least a subset of said second plurality of consecutive uplink time slots; as well as Means for determining that a collision has occurred between the first uplink transmission and the second uplink transmission in the common time slot.

57. The apparatus of claim 56, wherein the means for transmitting on the first component carrier or on the second component carrier in the common time slot comprises: Means for transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on determining that the collision has occurred and at least in part on a first priority associated with the first component carrier and a second priority associated with the second component carrier.

58. The apparatus of claim 57, further comprising: means for switching the transmit chain of the apparatus to a default component carrier after transmitting the first uplink transmission or the second uplink transmission.

59. The apparatus of claim 57, wherein the means for transmitting on the first component carrier or on the second component carrier in the common time slot comprises: Means for transmitting the first uplink transmission on the first component carrier in the common time slot based at least in part on determining that the first priority is greater than the second priority.

60. The apparatus of claim 59, further comprising: means for determining that the first priority is greater than the second priority based at least in part on at least one of: The first component carrier is associated with a primary cell of the device, The first component carrier is of a lower frequency than the second component carrier, or Means for receiving an indication of the first priority and the second priority from a network node.

61. The apparatus of claim 56, further comprising: means for determining that an error has occurred based at least in part on determining that the conflict has occurred; and The means for transmitting on the first component carrier or on the second component carrier in the common time slot comprises: means for refraining from transmitting on the first component carrier or on the second component carrier in the common time slot based at least in part on determining that the error has occurred, means for transmitting the first uplink transmission on the first component carrier in the common time slot or transmitting the second uplink transmission on the second component carrier in the common time slot based at least in part on determining that the error has occurred, or Means for transmitting the first uplink transmission on the first component carrier in the common time slot based at least in part on determining that the error has occurred and at least in part on the first component carrier being associated with a primary cell of the apparatus.

62. The apparatus of claim 56, further comprising: Means for switching the transmit chain of the apparatus between the first component carrier and the second component carrier in a first time slot occurring after a permitted carrier switching boundary based at least in part on determining that the collision has occurred.

63. The apparatus of claim 56, further comprising: Means for switching the transmit chain of the device between the first component carrier and the second component carrier in a first time slot based at least in part on determining that the collision has occurred, the first time slot occurring after a permitted carrier switching boundary and after one or more other time slots for which scheduling signaling was received concurrently with receipt of scheduling signaling for the first time slot.

64. The apparatus of claim 56, further comprising: Means for switching the transmit chain of the apparatus between the first component carrier and the second component carrier before or after any slot boundary of the common time slot based at least in part on determining that the collision has occurred.

65. The apparatus of claim 55, wherein the means for determining that an uplink transmission is scheduled in at least one of the first plurality of consecutive uplink time slots or the second plurality of consecutive uplink time slots comprises: means for determining that an uplink transmission is scheduled in at least a subset of said first plurality of consecutive uplink time slots; means for determining that scheduling signaling has not been received for the second plurality of consecutive uplink time slots; as well as Means for transmitting the uplink transmission on the first component carrier in the common timeslot based at least in part on determining that scheduling signaling for the second plurality of consecutive uplink timeslots has not been received.

66. The apparatus of claim 65, wherein the means for determining that scheduling signaling for the second plurality of consecutive uplink time slots has not been received comprises: means for searching downlink control information (DCI) associated with said second plurality of consecutive uplink time slots for scheduling signaling; as well as Means for searching a radio resource control configuration associated with the second plurality of consecutive uplink time slots for scheduling signaling after searching for the DCI associated with the second plurality of consecutive uplink time slots.

67. The apparatus of claim 65, wherein the means for determining that scheduling signaling for the second plurality of consecutive uplink time slots has not been received comprises: means for searching a radio resource control (RRC) configuration associated with said second plurality of consecutive uplink time slots for scheduling signaling; as well as Means for searching downlink control information associated with the second plurality of consecutive uplink time slots for scheduling signaling after searching for the RRC configuration associated with the second plurality of consecutive uplink time slots.

68. The apparatus of claim 55, wherein the means for determining whether to switch the transmit chain of the apparatus between the first component carrier and the second component carrier in the common time slot comprises: means for refraining from switching the transmit chain of the device between the first component carrier and the second component carrier in the common time slot until a scheduling communication is received causing the device to switch the transmit chain of the device between the first component carrier and the second component carrier, means for switching to the first component carrier in the common time slot based at least in part on the first component carrier being a default component carrier for the apparatus, means for switching to the first component carrier in the common timeslot based at least in part on the first component carrier being associated with a primary cell of the device, or Means for switching to the first component carrier in the common timeslot based at least in part on the first component carrier being a lower frequency relative to the second component carrier.

69. The apparatus of claim 55, wherein the first component carrier is included in a first component carrier group; and The second component carrier is included in a second component carrier group.

70. The apparatus of claim 69, wherein simultaneous uplink transmission across component carriers in the first component carrier group is not permitted; and Wherein, simultaneous uplink transmission across component carriers in the second component carrier group is not permitted.

71. The apparatus of claim 69, further comprising: means for receiving scheduling signaling from a primary cell in said first component carrier group; as well as means for receiving scheduling signaling from a primary cell in the second component carrier group.

72. The apparatus of claim 55, wherein the first component carrier is a time division multiplexed component carrier supporting two or more transmit ports; and The first component carrier supports switching between consecutive uplink timeslots or within an uplink timeslot.

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