Carrier Aggregation under Different Subframe Structures in New Radio

Abstract

This application relates to carrier aggregation under different subframe structures in New Radio. A method and apparatus for downlink and uplink control management of component carriers during carrier aggregation in a New Radio wireless communication system. For example, the method and apparatus include receiving a slot format indicator from a network entity in at least one time slot of at least one component carrier among a plurality of component carriers, where the at least one component carrier includes a group common physical downlink control channel (PDCCH), and the slot format indicator within the group common PDCCH at least indicates slot structure information for one or more other component carriers from among the plurality of component carriers; and communicating with the network entity using the slot structure information for the one or more other component carriers.

Description

[0001] This application is a divisional application of the patent application for "Carrier Aggregation under Different Subframe Structures in New Radio" with the application date of June 11, 2018 and the application number of 201880039892.2.

[0002] Cross-reference to Related Applications

[0003] This patent application claims the priority of U.S. Non-Temporary Application No. 16 / 003,753, entitled "CARRIER AGGREGATION UNDER DIFFERENT SUBFRAME STRUCTURES IN NEW RADIO", filed on June 8, 2018, and U.S. Provisional Application No. 62 / 521,172, entitled "CARRIER AGGREGATION UNDER DIFFERENT SUBFRAME STRUCTURES IN NEW RADIO", filed on June 16, 2017. The above applications are assigned to the assignee of this application and are hereby incorporated by reference in their entirety. Background

[0004] Aspects of the present disclosure generally relate to wireless communication networks, and more particularly to downlink and uplink control management of component carriers during carrier aggregation in a new radio wireless communication system.

[0005] Wireless communication networks are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be multi-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multi-access systems 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, and single-carrier frequency division multiple access (SC-FDMA) systems.

[0006] These multiple access techniques have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at the urban, national, regional, and even global levels. For example, the fifth generation (5G) wireless communication technology (which may be referred to as New Radio (NR)) is designed to extend and support diverse usage scenarios and applications relative to the current generation of mobile networks. In one aspect, 5G communication technology may include: enhanced mobile broadband for human-centric usage scenarios involving access to multimedia content, services, and data; ultra-reliable low-latency communication (URLLC) with certain specifications regarding latency and reliability; and massive machine-type communication, which may allow a very large number of connected devices and the transmission of relatively small amounts of non-latency-sensitive information. However, as the demand for mobile broadband access continues to grow, further improvements to NR communication technology and beyond-NR technology may be desirable.

[0007] For example, for NR communication technology and beyond-NR technology, it may be desirable to improve the downlink and uplink control management of component carriers during carrier aggregation.

[0008] Overview

[0009] A brief overview of one or more aspects is given below to provide a basic understanding of such aspects. This overview is not an exhaustive survey of all contemplated aspects and is neither intended to identify key or decisive elements of all aspects nor to delimit the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that follows.

[0010] According to one aspect, a method for downlink and uplink control management of component carriers during carrier aggregation in wireless communication. The described aspects include generating, at a network entity, a time slot format indicator for at least one component carrier, each component carrier including a group common physical downlink control channel (PDCCH), the time slot format indicator at least indicating time slot structure information within the group common PDCCH for one or more other component carriers. The described aspects further include transmitting the time slot format indicator to a user equipment (UE) in at least one time slot of at least one component carrier.

[0011] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication may include: a transceiver, a memory; and at least one processor coupled to the memory and configured to generate, at a network entity, a time slot format indicator for at least one component carrier, each component carrier including a group common PDCCH, the time slot format indicator indicating at least time slot structure information for one or more other component carriers within the group common PDCCH. The described aspects further transmit the time slot format indicator to a UE in at least one time slot of at least one component carrier.

[0012] In one aspect, a computer-readable medium storing computer-executable code for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include code for generating, at a network entity, a time slot format indicator for at least one component carrier, each component carrier including a group common PDCCH, the time slot format indicator indicating at least time slot structure information for one or more other component carriers within the group common PDCCH. The described aspects further include code for transmitting the time slot format indicator to a UE in at least one time slot of at least one component carrier.

[0013] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include means for generating, at a network entity, a time slot format indicator for at least one component carrier, each component carrier including a group common PDCCH, the time slot format indicator indicating at least time slot structure information for one or more other component carriers within the group common PDCCH. The described aspects further include means for transmitting the time slot format indicator to a UE in at least one time slot of at least one component carrier.

[0014] According to another aspect, a method for downlink and uplink control management of component carriers during carrier aggregation in wireless communication. The described aspects include determining, at a network entity, whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs. The described aspects further include generating, based on determining that cross-carrier scheduling is enabled, downlink control information (DCI) for at least one of the two or more component carriers, the DCI indicating at least time slot structure information for other component carriers among the two or more component carriers. The described aspects further include transmitting at least one DCI to a UE in at least one time slot of at least one of the two or more component carriers.

[0015] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication may include: a transceiver, a memory; and at least one processor coupled to the memory and configured to determine, at a network entity, whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs. The described aspects further generate, based on determining that cross-carrier scheduling is enabled, at least one DCI for at least one of the two or more component carriers, the DCI at least indicating slot structure information for other component carriers of the two or more component carriers. The described aspects further transmit, in at least one slot of at least one of the two or more component carriers, the at least one DCI to a UE.

[0016] In one aspect, a computer-readable medium storing computer-executable code for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include code for determining, at a network entity, whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs. The described aspects further include code for generating, based on determining that cross-carrier scheduling is enabled, a DCI for at least one of the two or more component carriers, the DCI at least indicating slot structure information for other component carriers of the two or more component carriers. The described aspects further include code for transmitting, in at least one slot of at least one of the two or more component carriers, the at least one DCI to a UE.

[0017] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include means for determining, at a network entity, whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs. The described aspects further include means for generating, based on determining that cross-carrier scheduling is enabled, a DCI for at least one of the two or more component carriers, the DCI at least indicating slot structure information for other component carriers of the two or more component carriers. The described aspects further include means for transmitting, in at least one slot of at least one of the two or more component carriers, the at least one DCI to a UE.

[0018] According to another aspect, a method for downlink and uplink control management of component carriers during carrier aggregation in wireless communication. The described aspects include receiving, at a UE, an indication to trigger channel state information (CSI) measurement in at least two or more component carriers, the indication being included in downlink control information (DCI) received in a time slot of one of the at least two or more component carriers. The described aspects further include determining a measurement configuration for performing CSI measurement in at least two or more component carriers. The described aspects further include performing CSI measurement in at least two or more component carriers based on the measurement configuration. The described aspects further include transmitting CSI measurement for at least two or more component carriers to a network entity.

[0019] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication may include: a transceiver, a memory; and at least one processor coupled to the memory and configured to receive, at a UE, an indication to trigger CSI measurement in at least two or more component carriers, the indication being included in DCI received in a time slot of one of the at least two or more component carriers. The described aspects further determine a measurement configuration for performing CSI measurement in at least two or more component carriers. The described aspects further perform CSI measurement in at least two or more component carriers based on the measurement configuration. The described aspects further transmit CSI measurement for at least two or more component carriers to a network entity.

[0020] In one aspect, a computer-readable medium storing computer-executable code for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include code for receiving, at a UE, an indication to trigger CSI measurement in at least two or more component carriers, the indication being included in DCI received in a time slot of one of the at least two or more component carriers. The described aspects further include code for determining a measurement configuration for performing CSI measurement in at least two or more component carriers. The described aspects further include code for performing CSI measurement in at least two or more component carriers based on the measurement configuration. The described aspects further include code for transmitting CSI measurement for at least two or more component carriers to a network entity.

[0021] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include means for receiving, at a UE, an indication to trigger CSI measurement in at least two or more component carriers, the indication being included in DCI received in a time slot of one of the at least two or more component carriers. The described aspects further include means for determining a measurement configuration for performing CSI measurement in at least two or more component carriers. The described aspects further include means for performing CSI measurement in at least two or more component carriers based on the measurement configuration. The described aspects further include means for transmitting CSI measurement for at least two or more component carriers to a network entity.

[0022] According to another aspect, a method for downlink and uplink control management of component carriers during carrier aggregation in wireless communication. The described aspects include generating, at a UE, uplink control information (UCI) for at least one component carrier, the UCI including uplink information for at least one or more other component carriers. The described aspects further include transmitting the UCI to a network entity in at least one time slot of at least one component carrier.

[0023] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication may include: a transceiver, a memory; and at least one processor coupled to the memory and configured to generate, at a UE, UCI for at least one component carrier, the UCI including uplink information for at least one or more other component carriers. The described aspects further transmit the UCI to a network entity in at least one time slot of at least one component carrier.

[0024] In one aspect, a computer-readable medium storing computer-executable code for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include code for generating, at a UE, UCI for at least one component carrier, the UCI including uplink information for at least one or more other component carriers. The described aspects further include code for transmitting the UCI to a network entity in at least one time slot of at least one component carrier.

[0025] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include means for generating, at a UE, uplink control information (UCI) for at least one component carrier, the UCI including uplink information for at least one or more other component carriers. The described aspects further include means for transmitting the UCI to a network entity in at least one time slot of at least one component carrier.

[0026] According to another aspect, a method for downlink and uplink control management of component carriers during carrier aggregation in wireless communication. The described aspects include assigning, at a network entity, the component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset associated with each of the one or more component carriers. The described aspects further include transmitting the timing advance offset associated with the component carrier to a UE.

[0027] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication may include: a transceiver, a memory; and at least one processor coupled to the memory and configured to assign, at a network entity, the component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset associated with each of the one or more component carriers. The described aspects further transmit the timing advance offset associated with the component carrier to a UE.

[0028] In one aspect, a computer-readable medium storing computer-executable code for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include code for assigning, at a network entity, the component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset associated with each of the one or more component carriers. The described aspects further include code for transmitting the timing advance offset associated with the component carrier to a UE.

[0029] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include means for assigning, at a network entity, a component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset associated with each of the one or more component carriers. The described aspects further include means for transmitting, to a UE, the timing advance offset associated with the component carrier.

[0030] According to another aspect, a method for downlink and uplink control management of component carriers during carrier aggregation in wireless communication. The described aspects include receiving, at a UE, in at least one time slot of at least one of a plurality of component carriers, a time slot format indicator from a network entity, wherein the at least one component carrier includes a group common PDCCH, and the time slot format indicator within the group common PDCCH indicates at least time slot structure information for one or more other component carriers from the plurality of component carriers. The described aspects further include communicating with the network entity using the time slot structure information for the one or more other component carriers.

[0031] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication may include: a transceiver, a memory; and at least one processor coupled to the memory and configured to receive, at a UE, in at least one time slot of at least one of a plurality of component carriers, a time slot format indicator from a network entity, wherein the at least one component carrier includes a group common PDCCH, and the time slot format indicator within the group common PDCCH indicates at least time slot structure information for one or more other component carriers from the plurality of component carriers. The described aspects further communicate with the network entity using the time slot structure information for the one or more other component carriers.

[0032] In one aspect, a computer-readable medium storing computer-executable code for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include code for receiving, at a UE, in at least one time slot of at least one of a plurality of component carriers, a time slot format indicator from a network entity, wherein the at least one component carrier includes a group common PDCCH, and the time slot format indicator within the group common PDCCH indicates at least time slot structure information for one or more other component carriers from the plurality of component carriers. The described aspects further include code for communicating with the network entity using the time slot structure information for the one or more other component carriers.

[0033] In one aspect, an apparatus for downlink and uplink control management of component carriers during carrier aggregation in wireless communication is described. The described aspects include means for receiving, at a UE, a time slot format indicator from a network entity in at least one time slot of at least one of a plurality of component carriers, wherein the at least one component carrier includes a group common PDCCH, and the time slot format indicator within the group common PDCCH indicates at least time slot structure information for one or more other component carriers from the plurality of component carriers. The described aspects further include means for communicating with the network entity using the time slot structure information for one or more other component carriers.

[0034] To achieve the foregoing and related purposes, one or more of these aspects include the features hereinafter fully described and particularly pointed out in the claims. The following description and the drawings set forth in detail certain illustrative features of one or more of these aspects. However, these features are merely indicative of the various ways in which the principles of the various aspects may be employed and this description is intended to cover all such aspects and their equivalents. Brief Description of the Drawings

[0035] The aspects disclosed hereinafter will be described in conjunction with the accompanying drawings, which are provided for illustration and not limitation of the disclosed aspects, where like reference numerals denote like elements and in which:

[0036] Figure 1 is a schematic diagram of an example of a wireless communication network that includes at least one base station having a downlink control management component configured to manage downlink control of component carriers, and at least one UE having an uplink control management component configured to manage uplink control of component carriers;

[0037] Figure 2 is a conceptual diagram of an example downlink-centered time slot structure for at least two component carriers with different parameter designs;

[0038] Figure 3 is a conceptual diagram of an example time slot structure for multiple time division duplex (TDD) downlink and uplink time slots;

[0039] Figure 4 and 5 is a conceptual diagram of an example downlink-centered time slot structure during transmission of cross-carrier indicators for multiple component carriers with a group common PDCCH and different parameter designs;

[0040] Figure 6 is a conceptual diagram of an example downlink-centered time slot structure during transmission of cross-carrier indicators for multiple component carriers with different parameter designs;

[0041] Figure 7 and 8 is a conceptual diagram of an example downlink-centered time slot structure during the transmission of UCI for multiple component carriers with different parameter designs;

[0042] Figure 9 is a flowchart of an example of a method for downlink control management at a network entity using a time slot format indicator;

[0043] Figure 10 is a flowchart of an example of a method for downlink control management at a network entity using DCI;

[0044] Figure 11 is a flowchart of an example of a method for CSI management at a UE;

[0045] Figure 12 is a flowchart of an example of a method for managing UCI at a UE;

[0046] Figure 13 is a flowchart of an example of a method for uplink timing advance management at a network entity;

[0047] Figure 14 is a flowchart of an example of a method for downlink control management at a UE using a time slot format indicator;

[0048] Figure 15 is a flowchart of an example of a method for downlink control management at a base station using a time slot format indicator;

[0049] Figure 16 is Figure 1 a schematic diagram of various example components of a UE; and

[0050] Figure 17 is Figure 1 a schematic diagram of various example components of a base station. Detailed description

[0051] Aspects are now described with reference to the accompanying drawings. In the following description, numerous specific details are set forth for the purpose of explanation in order to provide a thorough understanding of one or more aspects. However, it is apparent that such aspects may be practiced without these specific details. Additionally, the term "component" as used herein can be one of the parts that make up a system, can be hardware, firmware, and / or software stored on a computer-readable medium, and can be divided into other components.

[0052] The present disclosure generally relates to downlink and uplink control management of component carriers during carrier aggregation in a new radio wireless communication system. In one example, current LTE carrier aggregation configurations include frequency division duplexing (FDD) + FDD (Rel-10), time division duplexing (TDD) + TDD with the same subframe configuration (Rel-10), TDD + TDD with different subframe configurations (Rel-11), FDD + TDD (Rel-12), and 5 to 32 component carriers from carrier aggregation (Rel-13). Specifically for the downlink, same and cross-carrier scheduling occurs. This includes only Pcell (pScell in dual connectivity) common search space (CSS) monitoring, channel state information (CSI) measurement, reporting, processing limitations, conflict handling, etc. (e.g., physical control format indicator channel (PCFICH) / physical hybrid-ARQ indicator channel (PHICH), softer buffer management). For the uplink, this includes only Pcell (dual physical uplink control channel (PUCCH) carrier aggregation or pScell in dual connectivity) PUCCH transmission, various PUCCH formats (1 / 2 / 3 / 4 / 5), single PUSCH for UCI handling, etc. (e.g., SRS / PUCCH / / physical uplink shared channel (PUSCH) / multiple timing advance groups (TAG) / etc.). Thus, for LTE carrier aggregation, the same subframe structure and parameter design are used. In addition, in LTE Rel-14, the introduction of sTTI enables carrier aggregation with sTTI and 1-ms.

[0053] Accordingly, for a new radio wireless communication system, different slot durations and parameter designs are needed. For example, a new radio wireless communication system needs to cover a wide range of carrier frequencies, such as sub-6 GHz and / or millimeter wave. Further, a new radio wireless communication system needs different slot durations, such as 0.5 ms slots, 0.25 ms slots, etc. In addition, a new radio wireless communication system needs different parameter designs / frequency tuning intervals, such as 15 kHz, 30 kHz, 60 kHz, 120 kHz, etc. Therefore, carrier aggregation and dual connectivity for a new radio wireless communication system need to accommodate different parameter designs in different component carriers configured for a UE.

[0054] In one implementation at a network (e.g., gNB), according to an example, a wireless communication method may include: generating, at a network entity (e.g., gNB), a time slot format indicator for at least one component carrier, each component carrier including a group common PDCCH, the time slot format indicator indicating at least time slot structure information for one or more other component carriers within the group common PDCCH, and transmitting the time slot format indicator to a UE in at least one time slot of at least one component carrier. Another method may include: determining, at the network entity, whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs; generating, based on determining that cross-carrier scheduling is enabled, at least one DCI for at least one component carrier of the two or more component carriers, the DCI indicating at least time slot structure information for one or more other component carriers of the two or more component carriers; and transmitting at least one DCI to the UE in at least one time slot of at least one component carrier of the two or more component carriers. Another method may include: assigning, at the network entity, the component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset associated with each of the one or more component carriers, and transmitting the timing advance offset associated with the component carrier to the UE.

[0055] In one implementation at a UE, an example wireless communication method includes: receiving, at the UE, an indication to trigger CSI measurement in at least two or more component carriers, the indication being included in a DCI received in a time slot of one component carrier of the at least two or more component carriers; determining a measurement configuration for performing CSI measurement in at least two or more component carriers; performing CSI measurement in at least two or more component carriers based on the measurement configuration; and transmitting CSI measurement for at least two or more component carriers to a network entity. Another method includes: generating, at the UE, a UCI for at least one component carrier, the UCI including uplink information for at least one or more other component carriers; and transmitting the UCI to the network entity in at least one time slot of at least one component carrier.

[0056] Additional features of aspects of the present invention are described in more detail below with reference to Figure 1-17 the following.

[0057] Note that the techniques described herein can be used in various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers standards such as IS-2000, IS-95, and IS-856. Release 0 and A of IS-2000 are often referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is often referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other CDMA variants. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM TM etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used in the systems and radio technologies mentioned above, as well as in other systems and radio technologies, including cellular (e.g., LTE) communication on shared radio frequency bands. However, the following description describes the LTE / LTE-A system for example purposes and uses the LTE term in most of the following description, but these techniques can also be applied outside of LTE / LTE-A applications (e.g., applied to 5G networks or other next-generation communication systems).

[0058] The following description provides examples and is not intended to limit the scope, applicability, or examples set forth in the claims. Changes can be made to the functionality and arrangement of the elements discussed without departing from the scope of the disclosure. Various examples may appropriately omit, substitute, or add various procedures or components. For example, the methods described can be performed in a different order than described, and various steps can be added, omitted, or combined. Additionally, features described with reference to some examples can be combined in other examples.

[0059] Refer to Figure 1, in accordance with various aspects of the present disclosure, an exemplary wireless communication network 100 includes at least one UE 110 having a modem 140 with an uplink control management component 150 that manages uplink control of component carriers in a new radio wireless communication system. Further, the wireless communication network 100 includes at least one base station 105 having a modem 160 with a downlink control management component 170 configured to manage downlink control of component carriers.

[0060] In one aspect, the base station 105 may execute the downlink control management component 170 to generate a slot format indicator 172 for at least one component carrier, each component carrier including a group common physical downlink control channel (PDCCH), and the slot format indicator 172 at least indicates slot structure information for one or more other component carriers within the group common PDCCH. The base station 105 and / or the downlink control management component 170 may transmit the slot format indicator 172 in at least one slot of at least one component carrier.

[0061] In one aspect, the base station 105 may execute the downlink control management component 170 to determine whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs. The base station 105 may execute the downlink control management component 170 to generate at least one downlink control information (DCI) 174 for at least one of the two or more component carriers based on determining that cross-carrier scheduling is enabled. The DCI 174 at least indicates slot structure information for one or more other component carriers among the two or more component carriers. The base station 105 may execute the downlink control management component 170 to transmit at least one DCI 174 in at least one slot of at least one of the two or more component carriers.

[0062] In one aspect, the base station 105 may execute the downlink control management component 170 to assign the component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset 176 associated with each of the one or more component carriers. The base station 105 may execute the downlink control management component 170 to transmit the timing advance offset 176 associated with the component carrier.

[0063] In one aspect, the UE 110 may execute the uplink control management component 150 to receive an indication to trigger channel state information (CSI) measurements 152 in at least two or more component carriers, where the indication is included in DCI 174 received in a time slot of one of the at least two or more component carriers. The UE 110 may execute the uplink control management component 150 to determine a measurement configuration for performing CSI measurements 152 in at least two or more component carriers. The UE 110 may execute the uplink control management component 150 to perform CSI measurements 152 in at least two or more component carriers based on the measurement configuration. The UE 110 may execute the uplink control management component 150 to transmit CSI measurements 152 for at least two or more component carriers.

[0064] In one aspect, the UE 110 may execute the uplink control management component 150 to generate uplink control information (UCI) 154 for at least one component carrier, where the UCI 154 includes uplink information for at least one or more other component carriers. The UE 110 may execute the uplink control management component 150 to transmit the UCI 154 in at least one time slot of at least one component carrier.

[0065] The wireless communication network 100 may include one or more base stations 105, one or more UEs 110, and a core network 115. The core network 115 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The base station 105 may interface with the core network 115 via a backhaul link 120 (e.g., S1, etc.). The base station 105 may execute radio configuration and scheduling for communicating with the UE 110, or may operate under the control of a base station controller (not shown). In various examples, the base stations 105 may communicate with each other directly or indirectly (e.g., via the core network 115) over a backhaul link 125 (e.g., X1, etc.), and the backhaul link 125 may be a wired or wireless communication link.

[0066] Base station 105 may communicate wirelessly with UE 110 via one or more base station antennas. Each base station 105 may provide communication coverage for its respective geographic coverage area 130. In some examples, base station 105 may be referred to as a base transceiver station, radio base station, access point, access node, radio transceiver, B node, evolved B node (eNB), g Node B (gNB), home B node, home evolved B node, relay, or some other suitable term. The geographic coverage area 130 of base station 105 may be divided into sectors or cells (not shown) that only form a part of the coverage area. The wireless communication network 100 may include different types of base stations 105 (e.g., macro base stations or small cell base stations as described below). Additionally, the plurality of base stations 105 may operate according to different communication technologies (e.g., 5G (New Radio or “NR”), Fourth Generation (4G) / LTE, 3G, Wi-Fi, Bluetooth, etc.) among a variety of communication technologies, and thus there may be overlapping geographic coverage areas 130 for different communication technologies.

[0067] In some examples, wireless communication network 100 may be or include one or any combination of the various communication technologies, including New Radio (NR) or 5G technology, Long Term Evolution (LTE) or LTE-Advanced (LTE-A) or MuLTEfire technology, Wi-Fi technology, Bluetooth technology, or any other long-range or short-range wireless communication technology. In an LTE / LTE-A / MuLTEfire network, the term evolved B node (eNB) may generally be used to describe base station 105, and the term UE may generally be used to describe UE 110. Wireless communication network 100 may be a heterogeneous technology network where different types of eNBs provide coverage for various geographic regions. For example, each eNB or base station 105 may provide communication coverage for a macro cell, a small cell, or other types of cells. Depending on the context, the term “cell” is a 3GPP term that may be used to describe a base station, a carrier or component carrier associated with the base station, or the coverage area (e.g., sector, etc.) of the carrier or base station.

[0068] A macro cell generally may cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UE 110 having a service subscription with the network provider.

[0069] A small cell may include a relatively low transmit power base station (compared to a macro cell) that may operate in the same or a different frequency band (e.g., licensed, unlicensed, etc.) as the macro cell. According to various examples, small cells may include picocells, femtocells, and microcells. A picocell may, for example, cover a small geographical area and may allow unrestricted access by a UE 110 having a service subscription with a network provider. A femtocell may also cover a small geographical area (e.g., a residence) and may provide restricted access and / or unrestricted access by a UE 110 associated with the femtocell (e.g., in a restricted access scenario, a UE 110 in a closed subscriber group (CSG) of the base station 105, which may include a UE 110 of a user in the residence, etc.). A microcell may cover a geographical area that is larger than a picocell and a femtocell but smaller than a macro cell. An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (e.g., two, three, four, etc.) cells (e.g., component carriers).

[0070] A communication network that can accommodate some of the various disclosed examples may be a packet-based network that operates according to a hierarchical protocol stack, and data in the user plane may be based on IP. The user plane protocol stack (e.g., Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), MAC, etc.) may perform packet segmentation and reassembly for communication over logical channels. For example, the MAC layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use Hybrid Automatic Repeat / Request (HARQ) to provide MAC layer retransmissions, thereby improving link efficiency. In the control plane, the RRC protocol layer may provide the establishment, configuration, and maintenance of the RRC connection between the UE 110 and the base station 105. The RRC protocol layer may also be used for the core network 115 to support radio bearers for user plane data. In the Physical (PHY) layer, transport channels may be mapped to physical channels.

[0071] UE 110 can be distributed throughout the wireless communication network 100, and each UE 110 can be stationary or mobile. UE 110 may also include or be referred to by those skilled in the art as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. UE 110 can be a cellular phone, smartphone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, tablet computer, laptop computer, cordless phone, smartwatch, wireless local loop (WLL) station, entertainment device, vehicle component, customer premise equipment (CPE), or any device capable of communicating in the wireless communication network 100. Additionally, UE 110 can be an Internet of Things (IoT) and / or machine-to-machine (M2M) type of device, e.g., a low-power, low-data-rate type of device that may communicate infrequently (e.g., relative to a wireless phone) with the wireless communication network 100 or other UEs in some aspects. UE 110 can be capable of communicating with various types of base stations 105 and network equipment, including macro eNBs, small cell eNBs, macro gNBs, small cell gNBs, relay base stations, etc.

[0072] UE 110 can be configured to establish one or more wireless communication links 135 with one or more base stations 105. The wireless communication links 135 shown in the wireless communication network 100 can carry an uplink (UL) transmission from UE 110 to the base station 105 or a downlink (DL) transmission from the base station 105 to UE 110. The downlink transmission can also be referred to as a forward link transmission, and the uplink transmission can also be referred to as a reverse link transmission. Each wireless communication link 135 can include one or more carriers, where each carrier can be a signal composed of multiple subcarriers modulated according to the various radio technologies described above (e.g., waveform signals of different frequencies). Each modulated signal can be transmitted on different subcarriers and can carry control information (e.g., reference signals, control channels, etc.), overhead information, user data, etc. In one aspect, the wireless communication link 135 can use frequency division duplex (FDD) operation (e.g., using paired spectrum resources) or time division duplex (TDD) operation (e.g., using unpaired spectrum resources) to transmit two-way communication. Frame structures can be defined for FDD (e.g., frame structure type 1) and TDD (e.g., frame structure type 2). Additionally, in some aspects, the wireless communication link 135 can represent one or more broadcast channels.

[0073] In some aspects of the wireless communication network 100, the base station 105 or the UE 110 may include multiple antennas to adopt an antenna diversity scheme to improve the communication quality and reliability between the base station 105 and the UE 110. Additionally or alternatively, the base station 105 or the UE 110 may adopt multiple-input multiple-output (MIMO) technology, which can utilize the multipath environment to transmit multiple spatial layers carrying the same or different encoded data.

[0074] The wireless communication network 100 may support operations on multiple cells or carriers, which is a feature that may be referred to as carrier aggregation (CA) or multi-carrier operation. The carrier may also be referred to as a component carrier (CC), a layer, a channel, etc. The terms "carrier", "component carrier", "cell", and "channel" may be used interchangeably herein. The UE 110 may be configured with multiple downlink CCs and one or more uplink CCs for carrier aggregation. Carrier aggregation may be used in conjunction with both FDD and TDD component carriers. For each carrier allocated in a carrier aggregation with a total of up to Yx MHz (x = the number of component carriers) for transmission in each direction, the base station 105 and the UE 110 may use a spectrum with a bandwidth of up to Y Mhz (e.g., Y = 5, 10, 15, or 20 MHz). These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as the primary cell (PCell), and the secondary component carrier may be referred to as the secondary cell (SCell).

[0075] The wireless communication network 100 may further include a base station 105 (e.g., a Wi-Fi access point) operating according to Wi-Fi technology that is in communication with a UE 110 (e.g., a Wi-Fi station (STA)) operating according to Wi-Fi technology via a communication link in an unlicensed spectrum (e.g., 5 GHz). When communicating in the unlicensed spectrum, the STAs and APs may perform a clear channel assessment (CCA) or listen-before-talk (LBT) procedure before communication to determine whether the channel is available.

[0076] Additionally, one or more of base station 105 and / or UE 110 may operate according to NR or 5G technology, which is known as millimeter wave (mmW or mmwave or MMW) technology. For example, mmW technology includes transmissions at mmW frequencies and / or near mmW frequencies. Extremely High Frequency (EHF) is a part of the radio frequency (RF) in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters. Radio waves in this frequency band may be referred to as millimeter waves. Near mmW can extend down to a frequency of 3 GHz and a wavelength of 100 millimeters. For example, the Super High Frequency (SHF) band extends between 3 GHz and 30 GHz and may also be referred to as centimeter waves. Communications using mmW and / or near mmW radio frequency bands have extremely high path loss and short range. Thus, base station 105 and / or UE 110 operating according to mmW technology can utilize beamforming in their transmissions to compensate for the extremely high path loss and short range.

[0077] Referring to Figure 2 , based on the techniques described herein, a conceptual diagram of an example downlink-centric time slot structure 200 for at least two component carriers with different parameter designs. For example, UE 110 may execute an uplink control management component 150 while base station 105 may execute a downlink control management component 170 to communicate via component carriers CC1 and CC2 using carrier aggregation based on the downlink-centric time slot structure 200 described herein.

[0078] In this example of the downlink-centric time slot structure 200, the parameter designs of CC1 and CC2 are described. CC1 may be configured to have a time slot length x (e.g., 0.5 ms), while CC2 may be configured to have a time slot length y (e.g., 0.25 ms). Further, CC1 may be configured with a subcarrier spacing of 30 kHz per time slot and 14 symbols. CC2 may be configured with a subcarrier spacing of 60 kHz per time slot and 14 symbols. In another example, a component carrier with 60 kHz may still be configured with a time slot of 0.5 s, but may have a different transmission time interval (TTI) for scheduling.

[0079] In one aspect, each time slot of each component carrier may be configured with several regions, including a downlink control region, a downlink data region, a gap region, and an uplink control region. In one example, the gap region corresponds to a region where no transmission occurs between UE 110 and base station 105.

[0080] Referring to Figure 3, a conceptual diagram of an example time slot structure 300 for multiple time division duplex (TDD) downlink and uplink time slots is described. In one aspect, for a TDD downlink-centered time slot, the time slot structure may include a downlink burst region having a portion designated for the PDCCH. The TDD downlink-centered time slot may also include an uplink control region having a portion designated for the PUCCH. In one aspect, for a TDD only downlink time slot, the time slot structure may include a downlink burst region having a portion designated for the PDCCH. Different from the TDD downlink-centered time slot, the TDD only downlink time slot does not include an uplink control region.

[0081] In one aspect, for a TDD uplink-centered time slot, the time slot structure may include an uplink burst region having one or more portions designated for the PUCCH. The TDD uplink-centered time slot may also include a downlink burst region having a portion designated for the PDCCH. In one aspect, for a TDD only uplink time slot, the time slot structure may include an uplink burst region having one or more portions designated for the PUCCH. Different from the TDD uplink-centered time slot, the TDD only uplink time slot does not include a downlink burst region.

[0082] Referring to Figure 4 and 5 , conceptual diagrams of example downlink-centered time slot structures 400 and 500 during the transmission of cross-carrier indicators for multiple component carriers with group-shared PDCCH and different parameter designs are described. A network entity (such as base station 105 ( Figure 1 )) may execute a downlink control management component 170 to configure a component carrier (e.g., CC1) with a longer time duration and schedule a component carrier (e.g., CC2) with a shorter time duration, and vice versa.

[0083] For example, CC1 may be configured with time slot k having a time slot length (e.g., 0.5 ms), while CC2 may be configured with time slots 2n and 2n + 1, each time slot having a time slot length (e.g., 0.25 ms). Further, CC1 may be configured with a subcarrier spacing of 30 kHz and 14 symbols per time slot. CC2 may be configured with a subcarrier spacing of 60 kHz and 14 symbols per time slot. In another example, a component carrier with 60 kHz may still be configured with a 0.5 s time slot, but may have a different TTI for scheduling.

[0084] In one aspect, regarding the downlink centralized slot structure 400, for case 1, a component carrier with a shorter slot duration (e.g., CC2) carries a group common PDCCH (or also known as PSFICH (Physical Slot Format Indicator Channel)), and this group common PDCCH indicates for a component carrier with a longer slot duration (e.g., CC1). For example, the cross-carrier group common PDCCH may be enabled only in a subset of slots (e.g., slot 2n in CC2 may carry the cross-carrier group common PDCCH for CC1).

[0085] In one aspect, for case 2, a component carrier with a longer slot duration (e.g., CC1) carries a group common PDCCH, and this group common PDCCH indicates for a component carrier with a shorter slot duration (e.g., CC2). For example, the cross-carrier group common PDCCH may be enabled to indicate two or more slots for the component carriers indicated across carriers in one group common PDCCH (e.g., where the group common PDCCH in slot k of CC1 indicates the slot structures of slot 2n and slot 2n + 1 for CC2). Further, in another example, slot 2n and slot 2n + 1 may be restricted to have the same slot structure, such as a single indicator for CC2. In another example, another group common PDCCH channel is enabled on CC1 in the middle of the slot. In a further example, for CC2 slot 2n, the cross-carrier may be indicated by the group common PDCCH on CC1, but for CC2 slot 2n + 1, it is the same carrier indicated by the group common PDCCH on CC2. Therefore, the group common PDCCH for CC2 only exists in odd slots.

[0086] In some aspects, if the slot structures of the (component) carriers in carrier aggregation and dual connectivity change dynamically, then the combined case 1 and case 2 of the component carriers may change dynamically. For example, CC1 may indicate the slot structure for CC2 across carriers, but depending on the dynamic slot duration management at CC1 and / or CC2, the slot duration of CC1 may be longer or shorter at a given time instance.

[0087] In one aspect, regarding the downlink centralized slot structure 500, a component carrier may include a group common PDCCH that carries the slot format for multiple slots. A network entity (such as base station 105( Figure 1)) The downlink control management component 170 can be executed to configure a component carrier (e.g., CC1) with a longer time duration and schedule a component carrier (e.g., CC2) with a shorter time duration, and vice versa. In one example, for case 1, a component carrier with a shorter slot duration (e.g., CC2) carries a group common PDCCH (or also known as PSFICH), and the group common PDCCH includes multiple indications for a component carrier with a longer slot duration (e.g., CC1) and the component carrier itself. On the other hand, for case 2, a component carrier with a longer slot duration (e.g., CC1) carries a group common PDCCH, and the group common PDCCH includes multiple indications for a component carrier with a shorter slot duration (e.g., CC2) and the component carrier itself.

[0088] In one aspect, for component carriers with different slot durations, cross-carrier group common PDCCH may not be allowed. For example, component carriers with the same slot duration can be grouped together and indicated across carriers. The cross-carrier group common PDCCH indicator can be carried in the same channel as the same-carrier group common PDCCH indicator, or can also be carried in a separate channel. In another example, a single group common PDCCH channel on CC1 indicates the slot structure for CC1 and CC2, or the first group common PDCCH channel on CC1 indicates the slot structure for CC1, while the second group common PDCCH channel on CC1 indicates the slot structure for CC2.

[0089] Refer to Figure 6 , a conceptual diagram of an example downlink-centered slot structure 600 during the transmission of cross-carrier indicators for multiple component carriers with different parameter designs is described.

[0090] In one aspect, for UE-specific scheduling, cross-carrier scheduling can be considered between component carriers with different parameter designs. For example, if cross-carrier scheduling between component carriers with different parameter designs is enabled, a network entity (such as base station 105 ( Figure 1 )) can execute the downlink control management component 170 to configure a component carrier (e.g., CC1) with a longer time duration (e.g., 15 kHz subcarrier spacing) and schedule a component carrier (e.g., CC2) with a shorter time duration (e.g., 30 kHz subcarrier spacing), and vice versa.

[0091] In one aspect, for case 1, a component carrier with a shorter slot duration (e.g., CC2) carries a cross-scheduling DCI for a component carrier with a longer slot duration (e.g., CC1). For example, a PDCCH search space can include a cross-scheduling DCI for another component carrier in one slot (e.g., slot 2n) rather than the next slot (e.g., slot 2n + 1).

[0092] In one aspect, for scenario 2, a component carrier with a longer slot duration (e.g., CC1) carries cross-scheduled DCI for a component carrier with a shorter slot duration (e.g., CC2). For example, one PDCCH search space cross-schedules two or more DCIs for two or more slots (e.g., the PDSCH or PUSCH on CC2 in slots 2n and 2n+1 scheduled by slot k on CC1). In another example, a single DCI on CC1 cross-schedules slots 2n and 2n+1 on CC2 (e.g., joint DCI), which may have some limitations in terms of scheduling flexibility (e.g., slots 2n and 2n+1 have the same scheduled MCS).

[0093] Referring to Figure 7 and 8 , conceptual diagrams of example downlink-centered slot structures 700 and 800 during the transmission of UCI for multiple component carriers with different parameter designs are described. For example, a UE (such as UE 110( Figure 1 )) may execute an uplink control management component 150 to configure a component carrier with a longer time duration (e.g., CC1) to provide uplink feedback for a component carrier with a shorter time duration (e.g., CC2), and vice versa. That is, a single PUCCH can provide UCI (e.g., an acknowledgement signal (ACK), a negative acknowledgement signal (NACK), a scheduling request (SR), a channel quality indicator (CQI), or channel state information (CSI)) for component carriers with different parameter designs.

[0094] In one aspect, for scenario 1 of the downlink-centered slot structure 700, one PDSCH has one or more PUCCHs that provide hybrid automatic repeat request (HARQ) feedback. For example, the feedback of UCI for CC1 can be transmitted in two or more PUCCHs on CC2. In another example, the feedback of UCI for CC1 is only in the PUCCH on CC2 in some slots (e.g., slot 2n, rather than slot 2n+1).

[0095] In one aspect, for scenario 2 of the downlink-centered slot structure 800, one PUCCH carries two or more PDSCHs. For example, slot k on CC2 carries the HARQ response for the PDSCH transmissions in slots 2n and 2n+1.

[0096] Referring to Figure 9 , for example, a wireless communication method 900 for operating a base station 105 according to the above aspects for downlink control management using a slot format indicator in a new radio wireless communication system includes one or more of the actions defined herein.

[0097] At block 902, method 900 may generate, at a network entity, a time slot format indicator for at least one component carrier, each component carrier including a group common physical downlink control channel (PDCCH), the time slot format indicator indicating at least time slot structure information for one or more other component carriers within the group common PDCCH. For example, base station 105 may execute downlink control management component 170 to generate a time slot format indicator 172 for at least one component carrier, each component carrier including a group common PDCCH, the time slot format indicator 172 indicating at least time slot structure information for one or more other component carriers within the group common PDCCH.

[0098] In one aspect, a time slot corresponding to at least one component carrier has a shorter duration than a time slot corresponding to one or more other component carriers.

[0099] In one aspect, a time slot corresponding to at least one component carrier has a longer duration than a time slot corresponding to one or more other component carriers.

[0100] In one aspect, time slot format indicator 172 corresponds to the group common PDCCH.

[0101] In one aspect, time slot format indicator 172 further indicates time slot structure information for at least one component carrier for carrying the time slot format indicator.

[0102] In one aspect, time slot format indicator 172 further indicates the respective time slot structures of a plurality of time slots for one or more other component carriers and at least one component carrier.

[0103] At block 904, method 900 may transmit the time slot format indicator to a UE in at least one time slot of at least one component carrier. For example, base station 105 may execute downlink control management component 170 to transmit the time slot format indicator 172 to UE 110 in at least one time slot of at least one component carrier.

[0104] In one aspect, method 900 includes transmitting a second time slot format indicator to UE 110 in at least a second time slot of at least one component carrier, the second time slot format indicator indicating time slot structure information for at least one component carrier.

[0105] Referring Figure 10 , for example, operating base station 105 according to the above aspects for a wireless communication method 1000 for downlink control management using DCI in a new radio wireless communication system includes one or more of the actions defined herein.

[0106] At block 1002, method 1000 may determine, at a network entity, whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs. For example, base station 105 may execute downlink control management component 170 to determine whether to enable cross-carrier scheduling for two or more component carriers having different parameter designs.

[0107] At block 1004, method 1000 may generate, based on determining that cross-carrier scheduling is enabled, at least one DCI for at least one of two or more component carriers, the DCI indicating at least slot structure information for one or more other component carriers of the two or more component carriers. For example, base station 105 may execute downlink control management component 170 to generate, based on determining that cross-carrier scheduling is enabled, at least one DCI 174 for at least one of two or more component carriers, the DCI 174 indicating at least slot structure information for one or more other component carriers of the two or more component carriers.

[0108] At block 1006, method 1000 may transmit at least one DCI to a UE in at least one slot of at least one of two or more component carriers. For example, base station 105 may execute downlink control management component 170 to transmit at least one DCI174 to UE 110 in at least one slot of at least one of two or more component carriers.

[0109] In one aspect, a slot corresponding to at least one of two or more component carriers has a shorter duration than a slot corresponding to some of the other component carriers of the two or more component carriers.

[0110] In one aspect, a slot corresponding to at least one of two or more component carriers has a longer duration than a slot corresponding to some of the other component carriers of the two or more component carriers.

[0111] In one aspect, method 1000 including transmitting at least one DCI 174 in at least one slot of at least one of two or more component carriers further includes transmitting at least one DCI in a PDCCH search space.

[0112] Referring Figure 11 , for example, a wireless communication method 1100 for operating UE 110 according to the above aspects for uplink control management (such as CSI management) in a new radio wireless communication system includes one or more of the actions defined herein.

[0113] At block 1102, method 1100 may receive, at the UE, an indication to trigger CSI measurement in at least two or more component carriers, the indication being included in DCI received in a time slot of one of the at least two or more component carriers. For example, UE 110 may execute uplink control management component 150 to receive an indication to trigger CSI measurement 152 in at least two or more component carriers, the indication being included in DCI 174 received in a time slot of one of the at least two or more component carriers.

[0114] At block 1104, method 1100 may determine a measurement configuration for performing CSI measurement in at least two or more component carriers. For example, UE 110 may execute uplink control management component 150 to determine a measurement configuration for performing CSI measurement 152 in at least two or more component carriers.

[0115] At block 1106, method 1100 may perform CSI measurement in at least two or more component carriers based on the measurement configuration. For example, UE 110 may execute uplink control management component 150 to perform CSI measurement 152 in at least two or more component carriers based on the measurement configuration.

[0116] At block 1108, method 1100 may transmit CSI measurement for at least two or more component carriers to a network entity. For example, UE 110 may execute uplink control management component 150 to transmit CSI measurement 152 for at least two or more component carriers to base station 105.

[0117] In one aspect, the uplink control management component 150 being configured to determine a measurement configuration for performing CSI measurement 152 in at least two or more component carriers further includes determining whether a measurement time slot for each of the at least two or more component carriers is at or after the time slot of that one of the at least two or more component carriers. Further, the uplink control management component 150 being configured to perform CSI measurement 152 in at least two or more component carriers based on the measurement configuration further includes performing CSI measurement 152 in at least two or more component carriers based on determining that a measurement time slot for each of the at least two or more component carriers is at or after the time slot of that component carrier of the at least two or more component carriers.

[0118] In one aspect, method 1100 includes that the uplink control management component 150 is configured to ignore performing CSI measurement 152 for any component carrier having the following measurement time slots among at least two or more component carriers, where the measurement time slot is before the time slot of the component carrier among at least two or more component carriers.

[0119] In one aspect, the uplink control management component 150 being configured to determine the measurement configuration for performing CSI measurement 152 among at least two or more component carriers further includes determining whether the measurement time slot for each component carrier among at least two or more component carriers is at or after the immediately preceding time slot with respect to the time slot of the DCI that triggers the CSI report in the component carrier among at least two or more component carriers. Further, the uplink control management component 150 being configured to perform CSI measurement 152 among at least two or more component carriers based on the measurement configuration further includes performing CSI measurement 152 among at least two or more component carriers based on determining that the measurement time slot for each component carrier among at least two or more component carriers is at or after the immediately preceding time slot with respect to the time slot of the component carrier among at least two or more component carriers.

[0120] Referring Figure 12 , for example, the wireless communication method 1200 for operating the UE 110 according to the above aspects for uplink control management (such as UCI transmission) in a new radio wireless communication system includes one or more of the actions defined herein.

[0121] At block 1202, method 1200 may generate UCI for at least one component carrier at the UE, and the UCI includes uplink information for at least one or more other component carriers. For example, the UE 110 may execute the uplink control management component 150 to generate UCI 154 for at least one component carrier, and the UCI 154 includes uplink information for at least one or more other component carriers.

[0122] At block 1204, method 1200 may transmit the UCI to a network entity in at least one time slot of at least one component carrier. For example, the UE 110 may execute the uplink control management component 150 to transmit UCI 154 to the base station 105 in at least one time slot of at least one component carrier.

[0123] In one aspect, the UCI corresponds to at least one of an acknowledgement signal, a negative acknowledgement signal, a scheduling request, a CQI, or a CSI.

[0124] On the one hand, method 1200 includes that the uplink control management component 150 is configured to transmit UCI 154 in PUCCH in different component carriers, where in a case where the time slot carrying UCI 154 is shorter than the time slot corresponding to DL data transmission, UCI 154 can be repeated or transmitted in a subset of the time slots.

[0125] On the one hand, the uplink control management component 150 being configured to transmit UCI further includes transmitting UCI in a physical uplink control channel (PUCCH) corresponding to two or more physical downlink shared channels (PDSCH).

[0126] On the one hand, at least one or more other component carriers are configured with a parameter design different from that of at least one component carrier.

[0127] Referring to Figure 13 , for example, a wireless communication method 1300 for operating a base station 105 according to the above aspects for downlink control management using a timing advance offset in a new radio wireless communication system includes one or more of the actions defined herein.

[0128] In block 1302, method 1300 may assign the component carrier to a timing advance group at a network entity based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance associated with each of the one or more component carriers. For example, base station 105 may execute downlink control management component 170 to assign the component carrier to a timing advance group based on one or more carrier characteristics of the component carrier, the timing advance group including one or more component carriers and a timing advance offset 176 associated with each of the one or more component carriers.

[0129] In block 1304, method 1300 may transmit a timing advance offset associated with the component carrier to the UE. For example, base station 105 may execute downlink control management component 170 to transmit a timing advance offset 176 associated with the component carrier to UE 110.

[0130] On the one hand, one or more carrier characteristics include the parameter design of the component carrier.

[0131] On the one hand, one or more component carriers included in the timing advance group are configured with different parameter designs. Further, method 1300 may include determining the timing advance offset 176 using one of the primary cell or the secondary cell as a reference.

[0132] Referring to Figure 14, for example, operating the UE 110 according to the above aspects for downlink control management using timing advance offset in a new radio wireless communication system, the wireless communication method 1400 includes one or more of the actions defined herein.

[0133] In block 1402, the method 1400 may receive a slot format indicator from a network entity in at least one time slot of at least one component carrier among a plurality of component carriers at the UE, where the at least one component carrier includes a group common PDCCH, and the slot format indicator within the group common PDCCH indicates at least the slot structure information for one or more other component carriers from among the plurality of component carriers. For example, the UE 110 may execute the uplink control management component 150 to receive the slot format indicator 172 from the network entity 105 in at least one time slot of at least one component carrier among a plurality of component carriers, where the at least one component carrier includes a group common PDCCH, and the slot format indicator 172 within the group common PDCCH indicates at least the slot structure information for one or more other component carriers from among the plurality of component carriers.

[0134] In block 1404, the method 1400 may communicate with the network entity using the slot structure information for one or more other component carriers. For example, the UE 110 may execute the uplink control management component 150 to communicate with the network entity 105 using the slot structure information for one or more other component carriers.

[0135] In one aspect of the method 1400, the time duration of the time slot corresponding to at least one component carrier is shorter than the time duration of the time slot corresponding to one or more other component carriers.

[0136] In one aspect of the method 1400, the time duration of the time slot corresponding to at least one component carrier is longer than the time duration of the time slot corresponding to one or more other component carriers.

[0137] In one aspect of the method 1400, for example, the UE 110 may execute the uplink control management component 150 to receive a second PDCCH on a second component carrier from among the plurality of component carriers, where the PDCCH conveys the slot format indicator 172 for at least one time slot of the second component carrier.

[0138] In one aspect of the method 1400, the slot format indicator 172 further indicates the slot structure information for at least one component carrier carrying the slot format indicator 172.

[0139] In one aspect of method 1400, for example, UE 110 may execute uplink control management component 150 to receive a second time slot format indicator 172 in at least a second time slot of at least one component carrier, where the second time slot format indicator 172 indicates time slot structure information for the at least one component carrier.

[0140] In one aspect of method 1400, the time slot format indicator 172 further indicates corresponding time slot structures for multiple time slots of one or more other component carriers and the at least one component carrier.

[0141] In one aspect of method 1400, the at least one component carrier and the one or more other component carriers have different parameter designs.

[0142] In one aspect of method 1400, UE 110 may execute uplink control management component 150 to receive an indication to trigger CSI measurement 152 for one or more other component carriers, where the indication is included in DCI 174 received in a time slot of the at least one component carrier, determine a measurement configuration for performing CSI measurement 152 in the one or more other component carriers, perform CSI measurement 152 in the one or more other component carriers based on the measurement configuration, and transmit CSI measurements for the one or more other component carriers to network entity 105.

[0143] In one aspect of method 1400, UE 110 may execute uplink control management component 150 to determine whether a measurement time slot for each of the one or more other component carriers is at or after a time slot of the at least one component carrier, and perform CSI measurement 152 in the one or more other component carriers based on determining that the measurement time slot for each of the one or more other component carriers is at or after a time slot of the at least one component carrier.

[0144] In one aspect of method 1400, UE 110 may execute uplink control management component 150 to ignore performing CSI measurement 152 for at least one of the one or more other component carriers that has a measurement time slot before a time slot of the at least one component carrier.

[0145] In one aspect of method 1400, the UE 110 may execute the uplink control management component 150 to generate uplink control information (UCI) 154 in at least one component carrier, where the UCI 154 includes uplink information for one or more other component carriers, and transmit the UCI 154 to the network entity 105 in at least one time slot of at least one component carrier. For example, the UCI 154 corresponds to at least one of an acknowledgement signal, a negative acknowledgement signal, a scheduling request, a channel quality indicator (CQI), or channel state information (CSI).

[0146] In one aspect of method 1400, the UE 110 may execute the uplink control management component 150 to transmit the UCI 154 in a physical uplink control channel (PUCCH), where the UCI 154 may be repeated or transmitted in a subset of time slots.

[0147] In one aspect of method 1400, the UE 110 may execute the uplink control management component 150 to determine a timing advance offset 176 associated with each of a plurality of component carriers. For example, the determination of the component carrier is based on the parameter design of the component carrier.

[0148] In one aspect of method 1400, a plurality of component carriers are configured with different parameter designs, and the UE 110 may execute the uplink control management component 150 to determine the timing advance offset 176 for another component carrier by using one of the primary cell or the secondary cell as a reference.

[0149] Referring Figure 15 , for example, operating the base station 105 according to the above aspects for a wireless communication method 1500 for downlink control management using a time slot format indicator in a new radio wireless communication system includes one or more of the actions defined herein.

[0150] In block 1502, method 1500 may generate a time slot format indicator for at least one component carrier of a plurality of component carriers at a network entity, where the at least one component carrier includes a group common physical downlink control channel (PDCCH), and the time slot format indicator within the group common PDCCH at least indicates time slot structure information for one or more other component carriers from the plurality of component carriers. For example, the base station 105 may execute the downlink control management component 170 to generate a time slot format indicator 172 for at least one component carrier of a plurality of component carriers, where the at least one component carrier includes a group common PDCCH, and the time slot format indicator 172 within the group common PDCCH at least indicates time slot structure information for one or more other component carriers from the plurality of component carriers.

[0151] At block 1504, method 1500 may transmit the slot format indicator to a user equipment (UE) by a network entity in at least one time slot of at least one component carrier. For example, base station 105 may execute downlink control management component 170 to transmit slot format indicator 172 to UE 110 in at least one time slot of at least one component carrier.

[0152] At block 1506, method 1500 may communicate with the UE using time slot structure information for one or more other component carriers. For example, base station 105 may execute downlink control management component 170 to communicate with UE 110 using time slot structure information for one or more other component carriers.

[0153] In one aspect of method 1500, the time slot duration corresponding to at least one component carrier is shorter than the time slot duration corresponding to one or more other component carriers.

[0154] In one aspect of method 1500, the time slot duration corresponding to at least one component carrier is longer than the time slot duration corresponding to one or more other component carriers.

[0155] In one aspect of method 1500, base station 105 may execute downlink control management component 170 to receive a second PDCCH on a second component carrier from a plurality of component carriers, where the PDCCH conveys a slot format indicator 172 for at least one time slot of the second component carrier.

[0156] In one aspect of method 1500, slot format indicator 172 further indicates time slot structure information for at least one component carrier on which the slot format indicator 172 is carried.

[0157] In one aspect of method 1500, base station 105 may execute downlink control management component 170 to receive a second slot format indicator 172 in at least a second time slot of at least one component carrier, where the second slot format indicator 172 indicates time slot structure information for at least one component carrier.

[0158] In one aspect of method 1500, slot format indicator 172 further indicates the respective time slot structures of a plurality of time slots for one or more other component carriers and at least one component carrier.

[0159] In one aspect of method 1500, at least one component carrier and one or more other component carriers have different parameter designs.

[0160] In one aspect of method 1500, the base station 105 may execute the downlink control management component 170 to receive an indication to trigger CSI measurements 152 for one or more other component carriers, the indication being included in DCI 174 received in a time slot of at least one component carrier, and to receive CSI measurements 152 for one or more other component carriers, the CSI measurements 152 being determined by the UE 110 based on a measurement configuration.

[0161] In one aspect of method 1500, the base station 105 may execute the downlink control management component 170 to receive UCI 154 in at least one time slot of at least one component carrier, the UCI 154 including uplink information for one or more other component carriers.

[0162] In one aspect of method 1500, the UCI 154 corresponds to at least one of an acknowledgement signal, a negative acknowledgement signal, a scheduling request, a CQI, or a CSI.

[0163] In one aspect of method 1500, the base station 105 may execute the downlink control management component 170 to receive UCI 154 in the PUCCH, where the UCI 154 may be repeated or received in a subset of time slots.

[0164] Referring Figure 16 , an example implementation of the UE 110 may include various components, some of which have been described above, but also includes components such as one or more processors 1612 and a memory 1616 and a transceiver 1602 that are in communication via one or more buses 1644, which may operate in conjunction with the modem 140 and the uplink control management component 150 to implement one or more functions related to uplink control management of component carriers during carrier aggregation in a new radio wireless communication system as described herein. Additionally, one or more processors 1612, the modem 140, the memory 1616, the transceiver 1602, a radio frequency (RF) front end 1688, and one or more antennas 1665 may be configured to support voice and / or data calls (simultaneously or non-simultaneously) in one or more radio access technologies. In some aspects, the modem 140 may be the same as or similar to the modem 140 ( Figure 1 )

[0165] In one aspect, one or more processors 1612 may include a modem 140 that uses one or more modem processors. Various functions related to the uplink control management component 150 may be included in the modem 140 and / or the processor 1612, and in one aspect may be performed by a single processor, while in other aspects, different functions among the various functions may be performed by a combination of two or more different processors. For example, in one aspect, one or more processors 1612 may include any one or any combination of the following: a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receive processor, or a transceiver processor associated with the transceiver 1602. In other aspects, some of the features of the one or more processors 1612 and / or the modem 140 associated with the uplink control management component 150 may be performed by the transceiver 1602.

[0166] Similarly, the memory 1616 may be configured to store data used herein and / or a local version of the application 1675, or one or more of the uplink control management component 150 and / or its sub-components executed by at least one processor 1612. The memory 1616 may include any type of computer-readable medium that can be used by a computer or at least one processor 1612, such as random access memory (RAM), read-only memory (ROM), tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, when the UE 110 is operating at least one processor 1612 to execute one or more of the uplink control management component 150 and / or its sub-components, the memory 1616 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining one or more of the uplink control management component 150 and / or its sub-components and / or data associated therewith.

[0167] The transceiver 1602 may include at least one receiver 1606 and at least one transmitter 1608. The receiver 1606 may include hardware, firmware, and / or software code executable by a processor that includes instructions and is stored in a memory (e.g., a computer-readable medium). The receiver 1606 may be, for example, an RF receiver. In one aspect, the receiver 1606 may receive signals transmitted by at least one base station 105. Additionally, the receiver 1606 may process such received signals and may also obtain measurements of these signals, such as but not limited to Ec / Io, SNR, RSRP, RSSI, etc. The transmitter 1608 may include hardware, firmware, and / or software code executable by a processor that includes instructions and is stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 1608 may include but are not limited to RF transmitters.

[0168] Moreover, on the one hand, the UE 110 may include an RF front end 1688 that may operate communicatively with one or more antennas 1665 and a transceiver 1602 for receiving and transmitting radio transmissions, such as wireless communications transmitted by at least one base station 105 or wireless transmissions transmitted by the UE 110. The RF front end 1688 may be connected to one or more antennas 1665 and may include one or more low-noise amplifiers (LNAs) 1690 for transmitting and receiving RF signals, one or more switches 1692, one or more power amplifiers (PAs) 1698, and one or more filters 1696.

[0169] On the one hand, the LNA 1690 may amplify the received signal to a desired output level. On the one hand, each LNA 1690 may have specified minimum and maximum gain values. On the one hand, the RF front end 1688 may use one or more switches 1692 to select a particular LNA 1690 and the corresponding specified gain value based on the desired gain value for a particular application.

[0170] In addition, for example, one or more PAs 1698 may be used by the RF front end 1688 to amplify the signal to obtain an RF output at a desired output power level. On the one hand, each PA 1698 may have specified minimum and maximum gain values. On the one hand, the RF front end 1688 may use one or more switches 1692 to select a particular PA 1698 and the corresponding specified gain value based on the desired gain value for a particular application.

[0171] In addition, for example, one or more filters 1696 may be used by the RF front end 1688 to filter the received signal to obtain an input RF signal. Similarly, on the one hand, for example, the corresponding filter 1696 may be used to filter the output from the corresponding PA 1698 to generate an output signal for transmission. On the one hand, each filter 1696 may be connected to a particular LNA 1690 and / or PA 1698. On the one hand, the RF front end 1688 may use one or more switches 1692 to select a transmit or receive path using the specified filter 1696, LNA 1690, and / or PA 1698 based on a configuration specified by the transceiver 1602 and / or the processor 1612.

[0172] Thus, transceiver 1602 can be configured to transmit and receive wireless signals via RF front end 1688 through one or more antennas 1665. In one aspect, the transceiver can be tuned to operate at a specified frequency such that the UE 110 can communicate, for example, with one or more base stations 105 or one or more cells associated with one or more base stations 105. In one aspect, for example, modem 140 can configure transceiver 1602 to operate at a specified frequency and power level based on the UE configuration of UE 110 and the communication protocol used by modem 140.

[0173] In one aspect, modem 140 can be a multi-band - multi-mode modem that can process digital data and communicate with transceiver 1602 such that transceiver 1602 is used to send and receive digital data. In one aspect, modem 140 can be multi-band and configured to support multiple frequency bands for a particular communication protocol. In one aspect, modem 140 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 140 can control one or more components of UE 110 (e.g., RF front end 1688, transceiver 1602) to implement the transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, the modem configuration can be based on the mode of the modem and the frequency bands used. In another aspect, the modem configuration can be based on UE configuration information associated with UE 110, such as provided by the network during cell selection and / or cell reselection.

[0174] Referring Figure 17 to, an example implementation of base station 105 can include various components, some of which have been described above, but also includes components such as one or more processors 1712 and memory 1716 and transceiver 1702 that are in communication via one or more buses 1744, which can operate in conjunction with modem 160 and downlink control management component 170 to implement one or more functions related to the downlink control management of component carriers during carrier aggregation in a new radio environment as described herein.

[0175] Transceiver 1702, receiver 1706, transmitter 1708, one or more processors 1712, memory 1716, application 1775, bus 1744, RF front end 1788, LNA 1790, switch 1792, filter 1796, PA 1798, and one or more antennas 1765 can be the same as or similar to the corresponding components of UE 110 described above, but are configured or otherwise programmed for base station operation rather than UE operation.

[0176] The foregoing detailed description, in conjunction with the accompanying drawings, describes examples and does not represent the only examples that can be implemented or fall within the scope of the claims. The term "example" as used in this description means "serving as an example, instance, or illustration" and does not mean "superior to" or "better than other examples". This detailed description includes specific details to provide an understanding of the described technologies. However, these technologies may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0177] Information and signals can be represented using any of a variety of different arts and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.

[0178] The various illustrative blocks and components described in connection with the disclosure herein can be implemented or performed with a specially programmed device, such as, but not limited to, a processor, a digital signal processor (DSP), an ASIC, an FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. A specially programmed processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, microcontroller, or state machine. A specially programmed processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0179] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored on or transmitted via a non-transitory computer-readable medium as one or more instructions or code. Other examples and implementations fall within the scope and spirit of the disclosure and the appended claims. For example, due to the nature of software, the above-described functions can be implemented using software, hardware, firmware, hardwiring, or any combination thereof executed by a specially programmed processor. The features implementing the functions can also be physically located in various positions, including being distributed such that parts of the functions are implemented at different physical locations. Additionally, as used herein (including in the claims), the "or" in a list of items prefaced by "at least one of" indicates a disjunctive list such that, for example, the list "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0180] Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer, or a general purpose or special purpose processor. Any connection is properly termed a computer-readable media. For example, if software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the medium. As used herein, the terms disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically, while discs reproduce data optically with a laser. Combinations of the above media are also included within the scope of computer-readable media.

[0181] The foregoing description of the disclosure has been provided to enable a person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. In addition, although the elements of the described aspects and / or embodiments may be described or claimed in the singular, the plural is also contemplated unless expressly stated to be limited to the singular. Additionally, all or part of any aspect and / or embodiment may be combined with all or part of any other aspect and / or embodiment, unless otherwise stated. Accordingly, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication, comprising: receiving, at a user equipment (UE), a slot format indicator in at least one time slot of at least one component carrier among a plurality of component carriers, wherein the at least one component carrier includes a group common physical downlink control channel (PDCCH), and the slot format indicator within the group common PDCCH at least indicates slot structure information for one or more other component carriers from the plurality of component carriers, and wherein a slot duration corresponding to the at least one component carrier is longer than a slot duration corresponding to the one or more other component carriers, and wherein the at least one component carrier provides uplink feedback for the one or more other component carriers, and wherein the slot format indicator further indicates corresponding slot structures of a plurality of time slots for the one or more other component carriers and the at least one component carrier; and communicating with the network entity using the slot structure information for the one or more other component carriers.

2. The method according to claim 1, wherein the slot format indicator further indicates slot structure information for the at least one component carrier carrying the slot format indicator.

3. The method according to claim 1, wherein the at least one component carrier and the one or more other component carriers have different parameter designs.

4. The method according to claim 1, further comprising receiving a second PDCCH on a second component carrier from the plurality of component carriers, wherein the PDCCH conveys a slot format indicator for at least one time slot of the second component carrier.

5. The method according to claim 1, further comprising, at the UE, receiving a second slot format indicator in at least one second time slot of the at least one component carrier, the second slot format indicator indicating slot structure information for the at least one component carrier.

6. The method according to claim 1, further comprising: receiving, at the UE, an indication to trigger channel state information (CSI) measurement for the one or more other component carriers, the indication being included in downlink control information (DCI) received in a time slot of the at least one component carrier; determining a measurement configuration for performing the CSI measurement in the one or more other component carriers; performing the CSI measurement in the one or more other component carriers based on the measurement configuration; transmitting the CSI measurement for the one or more other component carriers to the network entity.

7. A method for wireless communication, comprising: Generate a slot format indicator for at least one component carrier among a plurality of component carriers, where the at least one component carrier includes a group common physical downlink control channel (PDCCH), the slot format indicator within the group common PDCCH at least indicates slot structure information for one or more other component carriers from the plurality of component carriers, and where the slot duration corresponding to the at least one component carrier is longer than the slot duration corresponding to the one or more other component carriers, and where the at least one component carrier provides uplink feedback for the one or more other component carriers, and where the slot format indicator further indicates the corresponding slot structures of a plurality of slots for the one or more other component carriers and the at least one component carrier; Transmit, by the network entity, the slot format indicator in at least one slot of the at least one component carrier; And Communicate with a user equipment (UE) using the slot structure information for the one or more other component carriers.

8. The method according to claim 7, wherein the slot format indicator further indicates the slot structure of the at least one component carrier for carrying the slot format indicator.

9. The method according to claim 7, wherein the at least one component carrier and the one or more other component carriers have different parameter designs.

10. The method according to claim 7, further comprising transmitting a second PDCCH on a second component carrier from the plurality of component carriers, wherein the PDCCH conveys a slot format indicator for at least one slot of the second component carrier.

11. The method according to claim 7, further comprising transmitting, by the network entity, a second slot format indicator in at least one second slot of the at least one component carrier, the second slot format indicator indicating slot structure information for the at least one component carrier.

12. The method according to claim 7, further comprising: Transmitting, by the network entity, an indication to trigger channel state information (CSI) measurements for the one or more other component carriers, the indication being included in downlink control information (DCI) received in a slot of the at least one component carrier; And Receiving, at the network entity, CSI measurements for the one or more other component carriers, the CSI measurements being determined by the UE based on a measurement configuration.

13. An apparatus for wireless communication at a user equipment (UE), comprising: Apparatus for receiving a slot format indicator in at least one time slot of at least one component carrier among a plurality of component carriers, wherein the at least one component carrier includes a group common physical downlink control channel (PDCCH), the slot format indicator within the group common PDCCH at least indicates slot structure information for one or more other component carriers from the plurality of component carriers, and wherein the time slot duration corresponding to the at least one component carrier is longer than the time slot duration corresponding to the one or more other component carriers, and wherein the at least one component carrier provides uplink feedback for the one or more other component carriers, and wherein the slot format indicator further indicates the corresponding slot structures of a plurality of time slots for the one or more other component carriers and the at least one component carrier; And Apparatus for communicating with the network entity using the slot structure information for the one or more other component carriers.

14. An apparatus for wireless communication at a user equipment (UE), comprising means for performing the method according to any one of claims 2 - 6.

15. An apparatus for wireless communication at a network entity, comprising: Means for generating a slot format indicator for at least one component carrier among a plurality of component carriers, wherein the at least one component carrier includes a group common physical downlink control channel (PDCCH), the slot format indicator within the group common PDCCH at least indicates slot structure information for one or more other component carriers from the plurality of component carriers, and wherein the time slot duration corresponding to the at least one component carrier is longer than the time slot duration corresponding to the one or more other component carriers, and wherein the at least one component carrier provides uplink feedback for the one or more other component carriers, and wherein the slot format indicator further indicates the corresponding slot structures of a plurality of time slots for the one or more other component carriers and the at least one component carrier; Means for transmitting the slot format indicator in at least one time slot of the at least one component carrier; And Means for communicating with a user equipment (UE) using the slot structure information for the one or more other component carriers.

16. An apparatus for wireless communication at a network entity, comprising means for performing the method according to any one of claims 8 - 12.

17. A computer-readable medium comprising instructions for wireless communication, which when executed by a processor cause the processor to perform the method according to any one of claims 1 to 12.

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