Automatic gain control in inter-band carrier aggregation with synchronization-free signal block carriers

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive, from a network node, a configuration of automatic gain control (AGC) symbols for a synchronization-free signal block (SSB) carrier, where the SSB-free carrier and at least one carrier that transmits an SSB are included in a plurality of carriers for inter-band carrier aggregation. The UE may receive an indication of activation of the SSB-free carrier from the network node. The UE may measure the signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier according to the configuration of the AGC for the SSB-free carrier. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. non-provisional patent application No. 17 / 810,812, filed on July 5, 2022, entitled “Automatic Gain Control in Inter-BAND CARRIERAGGREGATION WITH SYNCHRONIZATION-SIGNAL-BLOCK-LESS CARRIERS,” which is hereby expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for automatic gain control (AGC) in inter-band carrier aggregation with carriers without synchronization signal blocks (SSBs). Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. The UE may communicate with the network nodes via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).

[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink, using CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order that the above-mentioned features of the present disclosure may be understood in detail, a more specific description briefly summarized above may be obtained by reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the description may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0008] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0009] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0010] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0011] Figure 4 is a diagram illustrating an example of carrier aggregation according to the present disclosure.

[0012] Figure 5 is a diagram illustrating an example of inter-band carrier aggregation with a synchronization signal block (SSB)-free carrier according to the present disclosure.

[0013] Figures 6 to 10 is a diagram illustrating an example associated with automatic gain control (AGC) in inter-band carrier aggregation with a non-SSB carrier according to the present disclosure.

[0014] Figure 11 to Figure 12is a diagram illustrating an example process associated with AGC in inter-band carrier aggregation with a non-SS SB carrier according to the present disclosure.

[0015] Figure 13 to Figure 14 is a diagram of an example apparatus for wireless communications according to the present disclosure. Summary of the invention

[0016] Some aspects described herein relate to a user equipment (UE) for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a configuration of an automatic gain control (AGC) symbol for a synchronization signal block (SSB)-free carrier from a network node, wherein the SSB-free carrier and at least one carrier transmitting the SSB are included in multiple carriers for inter-band carrier aggregation. The one or more processors may be configured to receive an indication of activation of the SSB-free carrier from the network node. The one or more processors may be configured to measure the signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier according to the configuration of the AGC for the SSB-free carrier.

[0017] Some aspects described herein relate to a network node for wireless communication. The network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send a configuration of an AGC symbol for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation. The one or more processors may be configured to send an indication of activation of the non-SSB carrier to the UE. The one or more processors may be configured to send a signal to the UE in the AGC symbol for the non-SSB carrier to be measured for AGC on the non-SSB carrier.

[0018] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving a configuration of an AGC symbol for a non-SSB carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting an SSB are included in a plurality of carriers for inter-band carrier aggregation. The method may include receiving an indication of activation of the non-SSB carrier from the network node. The method may include measuring a signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier.

[0019] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending a configuration of an AGC symbol for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in a plurality of carriers for inter-band carrier aggregation. The method may include sending an indication of activation of the non-SSB carrier to the UE. The method may include sending a signal to the UE in the AGC symbol for the non-SSB carrier to be measured for AGC on the non-SSB carrier.

[0020] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive a configuration of an AGC symbol for a non-SSB carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting an SSB are included in multiple carriers for inter-band carrier aggregation. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive an indication of activation of the non-SSB carrier from the network node. The instruction set, when executed by one or more processors of the UE, may cause the UE to measure the signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier.

[0021] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send a configuration of an AGC symbol for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation. The instruction set, when executed by one or more processors of the network node, may cause the network node to send an indication of activation of the non-SSB carrier to the UE. The instruction set, when executed by one or more processors of the network node, may cause the network node to send a signal to the UE in the AGC symbol for the non-SSB carrier to be measured for AGC on the non-SSB carrier.

[0022] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a component for receiving a configuration of an AGC symbol for a non-SSB carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting an SSB are included in a plurality of carriers for inter-band carrier aggregation. The apparatus may include a component for receiving an indication of activation of the non-SSB carrier from the network node. The apparatus may include a component for measuring a signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier.

[0023] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include a component for sending a configuration of an AGC symbol for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation. The apparatus may include a component for sending an indication of activation of the non-SSB carrier to the UE. The apparatus may include a component for sending a signal to be measured for AGC on the non-SSB carrier in the AGC symbol for the non-SSB carrier to the UE.

[0024] Aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.

[0025] The foregoing has been a fairly broad overview of the features and technical advantages of examples according to the present disclosure so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for the same purpose of performing the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both their organization and methods of operation, and the associated advantages will be better understood when the following description is considered in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of limitations to the claims.

[0026] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. DETAILED DESCRIPTION

[0027] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions other than the various aspects of the disclosure set forth herein or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0028] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0029] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applicable to other RATs, such as 3G RAT, 4G RAT and / or RATs beyond 5G (e.g., 6G).

[0030] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0031] In some examples, the network node 110 is or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. For example, the network node 110 may include an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 using any suitable transport network through various types of fronthaul, midhaul, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks).

[0032] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1In the example shown in , network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0033] In some aspects, the term "base station" or "network node" may refer to a converged base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions, such as those described herein in conjunction with the network node 110. In some aspects, the term "base station" or "network node" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the performance of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not the other. In this way, a single device may include more than one base station.

[0034] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that can relay transmissions for other UEs 120. Figure 1 In the example shown in , a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communications between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0035] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0036] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.

[0037] UE 120 can be distributed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, an access terminal, a terminal, a mobile station and / or a subscriber unit. UE 120 can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node and / or any other suitable device configured to communicate via a wireless or wired medium.

[0038] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0039] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support RATs and may operate on one or more frequencies. RATs may be referred to as radio technologies, air interfaces, etc. Frequencies may be referred to as carriers, frequency channels, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0040] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network node 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0041] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that, although portions of FR1 are greater than 6 GHz, FR1 is often (interchangeably) referred to as a "below 6 GHz" band in various documents and articles. Similar naming issues sometimes occur with respect to FR2, which is often (interchangeably) referred to as a "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU).

[0042] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The bands falling within FR3 can inherit FRI characteristics and / or FR2 characteristics, and therefore the features of FR 1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz-71 GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

[0043] With the above examples in mind, unless otherwise specifically stated, it should be understood that if the term "sub-6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be below 6 GHz, may be within FRI, or may include mid-band frequencies. Additionally, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FRI, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0044] In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive a configuration of an automatic gain control (AGC) symbol for a non-synchronization signal block (SSB) carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting the SSB are included in multiple carriers for inter-band carrier aggregation; receive an indication of activation of the non-SSB carrier from the network node; and measure a signal strength on the non-SSB carrier in an AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0045] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send a configuration of an AGC symbol for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation; send an indication of activation of the non-SSB carrier to the UE; and send a signal to the UE in the AGC symbol for the non-SSB carrier to measure AGC on the non-SSB carrier. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0046] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0047] Figure 2 2 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0048] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (eg, T downlink signals) via a corresponding set of antennas 234 (eg, T antennas) (shown as antennas 234a through 234t).

[0049] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0050] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0051] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0052] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, with reference to Figures 6 to 14 ) or any aspect of any of the methods described herein.

[0053] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 for scheduling one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 6 to 14 ) or any aspect of any of the methods described herein.

[0054] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Fig.11 Process 1100, Fig.12 1200 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly, or after compilation, conversion and / or interpretation), may cause the one or more processors, UE 120 and / or network node 110 to perform or direct, for example, Fig.11 Process 1100, Fig.12 The process 1200 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0055] In some aspects, a UE (e.g., UE 120) includes: a component for receiving a configuration of an AGC symbol for a non-SSB carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in a plurality of carriers for inter-band carrier aggregation; a component for receiving an indication of activation of the non-SSB carrier from the network node; and / or a component for measuring a signal strength on the non-SSB carrier in an AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier. The components for the UE to perform the operations described herein may include, for example, one or more of the following: a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0056] In some aspects, a network node (e.g., network node 110) includes: a means for sending a configuration of an AGC symbol for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in a plurality of carriers for inter-band carrier aggregation; a means for sending an indication of activation of the non-SSB carrier to the UE; and / or a means for sending a signal to be measured for AGC on the non-SSB carrier in the AGC symbol for the non-SSB carrier to the UE. In some aspects, the means for the network node to perform the operations described herein may include, for example, one or more of the following: a communication manager 150, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0057] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0058] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0059] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0060] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0061] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Various units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0062] Figure 3 3 is a diagram illustrating an example decomposed base station architecture 300 according to the present disclosure. The decomposed base station architecture 300 may include a CU 310, which may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed control units (such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served by multiple RUs 340 simultaneously.

[0063] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces, which are configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of these units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, and the wireless interface may include a receiver, a transmitter, or a transceiver (such as an RF transceiver), which is configured to receive signals or send signals to one or more of the other units via a wireless transmission medium, or both.

[0064] In some aspects, CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 310. CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface such as an E1 interface. As needed, CU 310 may be implemented to communicate with DU 330 for network control and signaling.

[0065] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional partition such as that defined by 3GPP. In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0066] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions based on functional splits (e.g., functional splits defined by 3GPP) such as lower layer functional splits, or low PHY layer functions such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture such as a vRAN architecture.

[0067] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN, such as an open eNB (O-eNB) 311, via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0068] The non-RT RIC 315 may be configured to include logic functions that implement non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or in communication with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that implement near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0069] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0070] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0071] Figure 4 is a diagram illustrating an example 400 of carrier aggregation according to the present disclosure.

[0072] Carrier aggregation is a technique that enables two or more component carriers (CCs, sometimes referred to as carriers) to be combined (e.g., combined into a single channel) for a single UE 120 to enhance data capacity. As shown, carriers may be combined in the same or different frequency bands. Additionally or alternatively, contiguous or non-contiguous carriers may be combined. The network node 110 may configure carrier aggregation for the UE 120 (such as in a radio resource control (RRC) message, downlink control information (DCI), and / or another signaling message).

[0073] As indicated by reference numeral 405, in some aspects, carrier aggregation may be configured in an intra-band contiguous mode, where the aggregated carriers are contiguous with each other and in the same frequency band. As indicated by reference numeral 410, in some aspects, carrier aggregation may be configured in an intra-band discontiguous mode, where the aggregated carriers are discontiguous with each other and in the same frequency band. As indicated by reference numeral 415, in some aspects, carrier aggregation may be configured in an inter-band discontiguous mode, where the aggregated carriers are discontiguous with each other and in different frequency bands.

[0074] In carrier aggregation, a UE 120 may be configured with a primary carrier or primary cell (PCell) and one or more secondary carriers or secondary cells (SCells). In some aspects, the primary carrier may carry control information (e.g., downlink control information and / or scheduling information) for scheduling data communications on one or more secondary carriers, which may be referred to as cross-carrier scheduling. In some aspects, a carrier (e.g., a primary carrier or a secondary carrier) may carry control information for scheduling data communications on the carrier, which may be referred to as self-carrier scheduling or carrier self-scheduling.

[0075] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0076] Figure 5 is a diagram illustrating an example 500 of inter-band carrier aggregation with no SSB carriers according to the present disclosure.

[0077] In some cases, inter-band carrier aggregation (e.g., carrier aggregation with carriers in different frequency bands) may be configured for a UE (e.g., UE 120) having a carrier that transmits SSB and one or more non-SSB carriers. A non-SSB carrier is a carrier in the set of aggregated carriers that does not transmit SSB. For example, a network node (e.g., network node 110) may not send any broadcast transmissions (e.g., SSB, system information (SI), and / or paging messages) on the non-SSB carrier. Figure 5 As shown, in example 500, the aggregated carrier set for inter-band carrier aggregation includes an anchor carrier on which SSB is transmitted and two SSB-free carriers (e.g., non-anchor carrier 1 and non-anchor carrier 2). For example, the anchor carrier may be a Pcell, and the anchor carrier may be a Scell. In some cases, the aggregated carrier set may form a virtual cell for communicating with a UE. For example, the aggregated carrier set may be associated with a virtual cell identifier.

[0078] The network node may send SSBs and SI on an anchor carrier but not on a non-anchor carrier (e.g., a non-SSB carrier). The SSBs and SI sent on the anchor carrier may provide time and frequency synchronization information and SI for other carriers (e.g., non-anchor carriers) as well as for the anchor carrier. In some cases, sending SSBs on an anchor carrier (e.g., Pcell) but not on a non-anchor carrier (e.g., Scell) may improve Scell ​​activation latency (e.g., because the UE does not receive a corresponding SSB on each Scell). This improved Scell ​​activation latency may facilitate efficient Scell ​​activation and / or deactivation based on actual traffic associated with the UE, which may result in network power savings. In addition, not sending SSBs on a non-anchor carrier (e.g., Scell) may result in improved resource utilization due to reduced downlink overhead. This may allow deeper network sleep to improve power savings.

[0079] In some examples, the transmission of a reference signal or channel in a frequency band or carrier may have a quasi-co-located (QCL) source that is directly or indirectly associated with the SSB transmitted in the frequency band or carrier. However, for network power conservation, a non-SSB carrier may not carry broadcast transmissions (e.g., SSB, SI, and / or paging messages) and, possibly, may not carry tracking reference signals (TRS). For example, a non-SSB carrier may carry only control channels and data channels. AGC is an algorithm (e.g., by a UE) for adjusting received signal strength (e.g., for downlink communications received from a network node). The UE may perform AGC on an anchor carrier based at least in part on measurements of signals included in the SSB (e.g., PSS, SSS, and / or physical broadcast channel (PBCH)). When there is little power difference between the non-SSB carrier and the anchor carrier, the UE may be able to reuse the AGC measurements in the anchor carrier for the non-SSB carrier. However, when the power difference between the non-SSB carrier and the anchor carrier is high (e.g., 3dB-6dB), reusing AGC measurements in the anchor carrier for the non-SSB carrier may cause errors in the AGC for the non-SSB carrier that result in unreliable downlink communications in the non-SSB carrier.

[0080] In some cases, the network node may activate the transmission of a reference signal (e.g., TRS) to the UE in a non-SSB carrier for AGC. In this case, the activation of the reference signal (e.g., TRS) in the non-SSB carrier may be sent from the network node via a Scell ​​activation command in a medium access control (MAC) control element (MAC-CE) or via DCI. However, the activation of the reference signal (e.g., TRS) for AGC in the non-SSB carrier may result in increased Scell ​​activation latency because downlink communications to be sent to the UE on the non-SSB carrier cannot be scheduled before the transmission opportunity of the reference signal (e.g., TRS) to be used by the UE to perform AGC measurements.

[0081] Some techniques and apparatus described herein enable a UE to receive a configuration of an AGC symbol for a non-SSB carrier from a network node. The non-SSB carrier and at least one carrier transmitting an SSB may be included in a set of aggregated carriers for inter-band carrier aggregation. The UE may receive an indication of activation of the non-SSB carrier from the network node, and the UE may perform an AGC measurement on the non-SSB carrier in the AGC symbol for the non-SSB carrier according to the configuration of the AGC symbol for the non-SSB carrier. For example, the UE may measure the signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier. Thus, the UE may perform AGC for the non-SSB carrier based at least in part on an AGC (e.g., signal strength) measurement performed on the non-SSB carrier. In the case of inter-band carrier aggregation with a non-SSB carrier, this may improve the accuracy of the AGC for the non-SSB carrier. In some aspects, the signal sent by the network node in the AGC symbol for the non-SSB carrier may be the same as the signal sent in the next symbol after the AGC symbol. Therefore, compared to activating transmission of a reference signal (eg, TRS) for AGC in a non-SSB carrier, the signal in the AGC symbol may be transmitted without transmission activation, resulting in reduced Scell ​​activation latency.

[0082] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.

[0083] Figure 6 6 is a diagram illustrating an example 600 associated with AGC in inter-band carrier aggregation with a non-SS SB carrier according to the present disclosure. Figure 6 As shown in , example 600 includes communications between a network node 110 and a UE 120. In some aspects, the network node 110 and the UE 120 may be included in a wireless network such as the wireless network 100. The network node 110 and the UE 120 may communicate via a wireless access link, which may include an uplink and a downlink.

[0084] In some aspects, inter-band carrier aggregation may be configured for UE 120. For example, network node 110 may configure inter-band carrier aggregation for UE 120 via an RRC message, a DCI, a MAC-CE, and / or another signaling message sent from network node 110 to UE 120. In this case, the set of aggregated carriers configured for UE 120 may include multiple carriers in different frequency bands. The multiple carriers may include at least one carrier that transmits SSBs (e.g., the network node 110 transmits one or more SSBs on the carrier) and one or more SSB-free carriers. In some aspects, the at least one carrier that transmits SSBs may include a Pcell and / or an anchor carrier. In some aspects, the one or more SSB-free carriers may include one or more Scells and / or non-anchor carriers.

[0085] like Figure 6 And as indicated by reference numeral 605, the network node 110 may send, to the UE 120, a configuration of an AGC symbol for a non-SSB carrier included in the set of aggregated carriers for inter-band carrier aggregation. The UE 120 may receive the configuration of the AGC symbol for the non-SSB carrier from the network node 110. In some aspects, the network node 110 may send the configuration of the AGC symbol for the non-SSB carrier to the UE 120 via an RRC message, a MAC-CE, or a DCI. In some aspects, the configuration of the AGC symbol for the non-SSB carrier may be semi-statically configured for the UE 120 (e.g., via an RRC message). In some aspects, the network node 110 may send a dynamic indication of the configuration of the AGC symbol for the non-SSB carrier to the UE 120 (e.g., via a MAC-CE or a DCI). In some aspects, the configuration of the AGC symbol for the non-SSB carrier may be sent to the UE 120 (e.g., via an RRC message) along with other configuration information for configuring inter-band carrier aggregation for the UE 120. In some aspects, the indication of the configuration of the AGC symbols for the no SSB carrier may be included in the indication of activating the no SSB carrier for UE 120 (e.g., via a MAC-CE or RRC message). In some aspects, the network node 110 may send the configuration of the AGC symbols for the no SSB carrier to UE 120 on a carrier (e.g., a Pcell or an anchor carrier) transmitting SSB. In some aspects, the network node 110 may send the configuration of the AGC symbols for the no SSB carrier to UE 120 on another no SSB carrier that has been activated for UE 120 and on which UE 120 has performed AGC.

[0086] The configuration of the AGC symbol for the non-SSB carrier may indicate the position of the AGC symbol within the time slot that includes the AGC symbol. For example, the configuration of the AGC symbol for the non-SSB carrier may indicate which symbol in the time slot that includes the AGC symbol will be used as the AGC symbol. In some aspects, the AGC symbol may be the first symbol from the beginning of the time slot that includes the AGC symbol. In this case, the time slot that includes the AGC symbol (or the first occurrence of the time slot that includes the AGC symbol) may be the first time slot in which downlink communication is scheduled to be sent to the UE 120 (and received by the UE) on the non-SSB carrier after the non-SSB carrier is activated for the UE 120. In some aspects, the AGC symbol may be in a symbol other than the first symbol in the time slot that includes the AGC symbol, and / or the time slot that includes the AGC symbol may be a different time slot from the first time slot in which downlink communication is scheduled for the UE 120 on the non-SSB carrier after the activation of the non-SSB carrier. For example, in some aspects, the AGC symbol may be the last symbol at the end of the time slot that includes the AGC symbol. In this case, the time slot including the AGC symbol (or the first occurrence of a time slot including the AGC symbol) may be the last time slot after activation of the non-SSB carrier before the first time slot in which downlink communication is scheduled for UE 120 on the non-SSB carrier.

[0087] In some aspects, the position of the AGC symbol for the non-SSB carrier in the time slot including the AGC symbol may be based at least in part on an offset value (K0) indicated in a DCI that schedules downlink communications to be received by UE 120 on the non-SSB carrier. The offset value (K0) may indicate an offset from the last physical downlink control channel (PDCCH) symbol in which UE 120 receives DCI to the start of a scheduled physical downlink shared channel (PDSCH) communication to be received by UE 120. In some aspects, based at least in part on the value of K0, the position of the AGC symbol may be in the last symbol in the time slot including the AGC symbol, or in the first symbol in the time slot including the AGC symbol. In some aspects, the network node 110 may determine the position of the AGC symbol in the time slot including the AGC symbol based at least in part on the value of K0 indicated (or to be indicated in) in a DCI that schedules a first downlink (e.g., PDSCH) communication to be received by UE 120 on the non-SSB carrier after activation of the non-SSB carrier. In this case, the network node 110 may indicate in the configuration of the AGC symbols for the non-SSB carrier (e.g., via a MAC-CE or DCI that includes a dynamic indication of the configuration of the AGC symbols for the non-SSB carrier) the position of the AGC symbols determined at least in part based on the value of K0. In some aspects (e.g., in the case of a semi-static configuration), the configuration of the AGC symbols for the non-SSB carrier may indicate a plurality of different options for the position of the AGC symbols associated with different K0 values. In this case, the network node 110 may send a dynamic indication (e.g., in the indication of activation of the non-SSB carrier) of which option of the position of the AGC symbols the UE 120 will use (or which K0 value will be indicated in the DCI).

[0088] In some aspects, the configuration of the AGC symbol for a non-SSB carrier may indicate a slot structure of a slot including the AGC symbol. For example, the slot structure may include an AGC symbol, one or more PDSCH symbols, one or more PDCCH symbols, and / or one or more other symbols (e.g., uplink symbols and / or flexible symbols).

[0089] In some aspects, the configuration of the AGC symbol for the non-SSB carrier may configure a single occurrence of a time slot that includes the AGC symbol. In this case, the occurrence of the time slot that includes the AGC symbol may be configured such that the AGC symbol precedes the first symbol in which downlink communications are scheduled for UE 120 on the non-SSB carrier (after activation of the non-SSB carrier). For example, the time slot that includes the AGC symbol may be a time slot that precedes the first time slot in which downlink communications (e.g., PDSCH communications) are scheduled for UE 120 on the non-SSB carrier after activation of the non-SSB carrier, or the time slot that includes the AGC symbol may be the first time slot in which downlink communications (e.g., PDSCH communications) are scheduled for UE 120 on the non-SSB carrier after activation of the non-SSB carrier (e.g., where the AGC symbol is the first symbol in the time slot).

[0090] In some aspects, the configuration of AGC symbols for no SSB carriers may configure a periodic timing of time slots that include AGC symbols for no SSB carriers (e.g., for periodic AGC measurements for no SSB carriers by UE 120). In this case, the configuration of AGC symbols for no SSB carriers may indicate a periodicity of time slots that include AGC symbols for no SSB carriers. The periodicity may indicate a time duration (e.g., a number of time slots) between the timings of time slots that include AGC symbols for no SSB carriers. In some aspects, a first timing of a time slot that includes an AGC symbol may be configured such that the AGC symbol in the first timing of the time slot that includes the AGC symbol precedes a first symbol in which downlink communications are scheduled for UE 120 on the no SSB carrier (after activation of the no SSB carrier). For example, the first time slot including the AGC symbol may be a time slot before the first time slot after activation of the non-SSB carrier in which downlink communication (e.g., PDSCH communication) is scheduled for UE 120 on the non-SSB carrier, or the first time slot including the AGC symbol may be the first time slot after activation of the non-SSB carrier in which downlink communication (e.g., PDSCH communication) is scheduled for UE 120 on the non-SSB carrier (e.g., in the case where the AGC symbol is the first symbol in the time slot). In this case, the time slot including the AGC symbol may be repeated in the time slot after the first time slot according to the periodicity of the time slot including the AGC symbol.

[0091] In some aspects, such as Figure 6As shown, UE 120 may receive a configuration of AGC symbols for no SSB carriers from network node 110. In other aspects, the configuration of AGC symbols for no SSB carriers may be predefined or preconfigured for UE 120. For example, the configuration of AGC symbols may be defined in a wireless communication standard (e.g., a 3GPP wireless communication standard). In this case, UE 120 may store the configuration of AGC symbols for no SSB carriers and apply the configuration of AGC symbols for no SSB carriers without explicitly signaling the configuration of AGC symbols for no SSB carriers from network node 110 to UE 120.

[0092] like Figure 6 And as further indicated by reference numeral 610, the network node 110 may send an indication of activation of the non-SSB carrier to the UE 120. The UE 120 may receive the indication of activation of the non-SSB carrier from the network node 110. The indication of activation of the non-SSB carrier may indicate activation of the non-SSB carrier for the UE 120. In some aspects, the network node 110 may send the indication of activation of the non-SSB carrier to the UE 120 via an RRC message (e.g., an RRC reconfiguration message). In some aspects, the network node 110 may send the indication of activation of the non-SSB carrier to the UE 120 via a MAC-CE (e.g., a dynamic indication). In some aspects, the network node 110 may send the indication of activation of the non-SSB carrier to the UE 120 via a DCI (e.g., a dynamic indication). In some aspects, the indication of activation of the non-SSB carrier may include a configuration of an AGC symbol for the non-SSB carrier. In some aspects, the configuration of AGC symbols for the non-SSB carrier and the indication of activation of the non-SSB carrier may be sent in separate communications from the network node 110 to the UE 120. In some aspects, the network node 110 may send the indication of activation of the non-SSB carrier to the UE 120 on a carrier (e.g., a Pcell or an anchor carrier) that transmits SSB. In some aspects, the network node 110 may send the indication of activation of the non-SSB carrier to the UE 120 on another non-SSB carrier that was previously activated for the UE 120 and on which the UE 120 has performed AGC.

[0093] like Figure 6And as further indicated by reference numeral 615, the network node 110 may send a signal to be measured for AGC on the non-SSB carrier to the UE 120 in the AGC symbol for the non-SSB carrier. The network node 110 may send the signal in the AGC symbol according to the configuration for the AGC symbol. For example, the time slot including the AGC symbol and the position of the AGC symbol in the time slot including the AGC symbol may be configured in the configuration of the AGC symbol. In some aspects, the signal sent in the AGC symbol may be a repetition of the signal sent in the next symbol after the AGC symbol. That is, the network node 110 may repeat the same signal in the AGC symbol and the next symbol, and the repeated signal may be a signal associated with the downlink communication (e.g., PDCCH or PDSCH communication) sent in the next symbol. For example, in the case where the AGC symbol is the first symbol at the beginning of the time slot including the AGC symbol, the signal sent in the AGC symbol may be the same signal as the signal sent in the second symbol after the first symbol in the time slot including the AGC symbol. In the case where the AGC symbol is the last symbol at the end of the slot including the AGC symbol, the signal transmitted in the AGC symbol may be the same signal as the signal transmitted in the first symbol at the beginning of the next slot after the slot including the AGC symbol.

[0094] like Figure 6 And as further indicated by reference numeral 620, UE 120 may measure the signal strength on the non-SSB carrier in the AGC symbol of the non-SSB carrier according to the configuration of the AGC symbol for the non-SSB carrier, and UE 120 may perform AGC for the non-SSB carrier based at least in part on the signal strength measured in the AGC symbol. For example, the time slot including the AGC symbol and the position of the AGC symbol in the time slot including the AGC symbol may be configured in the configuration of the AGC symbol. UE 120 may receive a signal sent by network node 110 in the AGC symbol for the non-SSB carrier, and UE 120 may perform AGC measurement on the signal received in the AGC symbol. In some aspects, the AGC measurement may be a measurement of the signal strength of the signal received in the AGC symbol for the non-SSB carrier. For example, the AGC measurement may be an RS SI measurement performed on the signal sent in the AGC symbol for the non-SSB carrier (on the non-SSB carrier). UE 120 may perform AGC for the non-SSB carrier based at least in part on AGC measurements (e.g., RSSI measurements) of signals received in AGC symbols for the non-SSB carrier. For example, UE 120 may perform an AGC algorithm (e.g., an AGC cycle) based at least in part on the AGC measurements (e.g., RSSI measurements) to determine adjustments to receiver gain to apply to downlink communications received on the non-SSB carrier.

[0095] like Figure 6 And as further indicated by reference numeral 625, the network node 110 may send downlink communications to the UE 120 on the non-SSB carrier. The UE 120 may receive the downlink communications on the non-SSB carrier. In some aspects, the UE 120 may receive the downlink communications based at least in part on AGC for the non-SSB carrier. For example, the UE 120 may apply AGC (e.g., adjustment of receiver gain) performed at least in part based on AGC measurements (e.g., signal strength measurements) of the non-SSB carrier in the AGC symbols to the downlink communications received on the non-SSB carrier.

[0096] In some aspects, the downlink communication may be a PDSCH communication scheduled by a DCI sent from the network node 110 to the UE 120 (e.g., in a PDCCH communication). In some aspects, the PDSCH communication on the SSB-free carrier may be scheduled via cross-carrier scheduling. In this case, the DCI scheduling the PDSCH communication on the SSB-free carrier may be sent to the UE 120 on a carrier other than the SSB-free carrier. For example, the network node 110 may send the DCI on a carrier (e.g., a Pcell or an anchor carrier) that transmits SSB. In some aspects, the DCI scheduling the PDSCH communication on the SSB-free carrier may also be sent to the UE 120 on the SSB-free carrier. In this case, the DCI scheduling the PDSCH communication may be sent from the network node 110 to the UE 120 after the AGC symbol for the SSB-free carrier, and the UE 120 may apply the AGC to the PDCCH communication including the DCI as well as the PDSCH communication.

[0097] In some aspects, the UE 120 may apply AGC performed at least in part based on the AGC measurement of the non-SSB carrier in the AGC symbol for the non-SSB carrier to one or more downlink communications received on the non-SSB carrier. In the case where the time slot including the AGC symbol is configured with periodic opportunities, the network node 110 may send a signal to be measured for AGC on the non-SSB carrier in the AGC symbol in each opportunity of the time slot including the AGC symbol for the non-SSB carrier, and the UE 120 may measure the AGC measurement (e.g., signal strength measurement) of the non-SSB carrier in each opportunity of the time slot including the AGC symbol for the non-SSB carrier. In this case, the UE 120 may apply AGC performed at least in part based on the AGC measurement in the opportunity of the time slot including the AGC symbol for the non-SSB carrier to all downlink communications received on the non-SSB carrier between the opportunity and the next opportunity of the time slot including the AGC symbol for the non-SSB carrier.

[0098] In the event that the configuration of the AGC symbols includes a single occurrence of a time slot of the AGC symbols for a carrier without an SSB, the UE 120 may apply AGC performed at least in part based on AGC measurements in the AGC symbols to all downlink communications received on the carrier without an SSB until the UE 120 receives a new configuration in which the configuration of the AGC symbols includes another occurrence of a time slot of the AGC symbols for a carrier without an SSB, or until the carrier without an SSB is deactivated for the UE 120.

[0099] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.

[0100] Figure 7 is a diagram illustrating an example 700 associated with AGC in inter-band carrier aggregation with no SSB carriers according to the present disclosure. Figure 7 As shown, example 700 illustrates an example configuration of AGC symbols for a non-SSB carrier.

[0101] like Figure 7 And as indicated by reference numeral 705, in some aspects, the AGC symbol may be the first symbol from the beginning of the slot including the AGC symbol. As indicated by reference numeral 710, the same signal may be repeated in the AGC symbol and the second symbol after the AGC symbol in the slot including the AGC symbol. That is, the signal sent by the network node 110 in the AGC symbol may be a repetition of the signal sent in the second symbol (e.g., PDSCH symbol) in the slot.

[0102] like Figure 7 As shown, in some aspects, a time slot including an AGC symbol may not include any PDCCH symbols. For example, a time slot including an AGC symbol may include an AGC symbol, a PDSCH symbol, and an uplink or flexible symbol. In this case, the UE 120 may receive a DCI via another carrier (e.g., an anchor carrier) that schedules reception of downlink communications (e.g., PDSCH communications) on a non-SSB carrier in a PDSCH symbol of the time slot. In some aspects, where the AGC symbol is the first symbol in a time slot including an AGC symbol, the time slot including the AGC symbol (or the first occurrence of a time slot including an AGC symbol) may be the first time slot in which downlink communications (e.g., PDSCH communications) are scheduled to be received by the UE 120 on the non-SSB carrier after activation of the non-SSB carrier.

[0103] As indicated above, Figure 7 are provided as examples. Other examples can be found in the Figure 7 The examples described are different.

[0104] Figure 8 8 is a diagram illustrating an example 800 associated with AGC in inter-band carrier aggregation with no SSB carriers according to the present disclosure. Figure 8 As shown, example 800 illustrates an example configuration of AGC symbols for a non-SSB carrier.

[0105] like Figure 8 And as indicated by reference numeral 805, in some aspects, the AGC symbol may be the first symbol from the beginning of the slot including the AGC symbol. As indicated by reference numeral 810, the same signal may be repeated in the AGC symbol and the second symbol after the AGC symbol in the slot including the AGC symbol. That is, the signal sent by the network node 110 in the AGC symbol may be a repetition of the signal sent in the second symbol (e.g., PDCCH symbol) in the slot.

[0106] like Figure 8 As shown, in some aspects, a time slot including an AGC symbol may include an AGC symbol, one or more PDCCH symbols, a PDSCH symbol, and other symbols (e.g., uplink or flexible symbols). In this case, the starting symbol of the PDCCH may be the second symbol in the time slot including the AGC symbol, and the signal sent in the first PDCCH symbol (e.g., the second symbol) is repeated in the AGC symbol. In some aspects, where the AGC symbol is the first symbol in the time slot including the AGC symbol, the time slot including the AGC symbol (or the first occurrence of the time slot including the AGC symbol) may be the first time slot in which downlink communication (e.g., PDSCH communication) is scheduled to be received by UE 120 on the non-SSB carrier after activation of the non-SSB carrier.

[0107] As indicated above, Figure 8 are provided as examples. Other examples can be found in the Figure 8 The examples described are different.

[0108] Fig. 9 is a diagram illustrating an example 900 associated with AGC in inter-band carrier aggregation with a non-SS SB carrier according to the present disclosure. Fig. 9 As shown, example 900 illustrates an example configuration of AGC symbols for a non-SSB carrier.

[0109] like Fig. 9As shown, in some aspects, the time slot including the AGC symbol may be different from the first time slot in which downlink communication (e.g., PDSCH communication) is scheduled to be received by UE 120 on the non-SSB carrier after activation of the non-SSB carrier. As shown by reference numeral 905, in some aspects, the AGC symbol may be the last symbol at the end of the time slot including the AGC symbol. In this case, the time slot including the AGC symbol may be the previous time slot (time slot n-1) before the first time slot (time slot n) in which downlink communication is scheduled to be received by UE 120 on the non-SSB carrier after activation of the non-SSB carrier. As shown by reference numeral 910, in the case where the AGC symbol is the last symbol in time slot n-1, the same signal may be repeated in the AGC symbol and the first symbol at the beginning of time slot n. That is, the signal sent by the network node 110 in the AGC symbol may be a repetition of the signal sent in the first symbol (e.g., PDCCH symbol) in time slot n.

[0110] As indicated above, Fig. 9 are provided as examples. Other examples can be found in the Fig. 9 The examples described are different.

[0111] Fig.10 1 are diagrams illustrating examples 1000 and 1010 associated with AGC in inter-band carrier aggregation with no SSB carriers according to the present disclosure. Fig.10 As shown, examples 1000 and 1010 illustrate example configurations of AGC symbols for a non-SSB carrier based at least in part on an offset value (K0) between the last PDCCH symbol in which UE 120 receives DCI and the PDSCH communication scheduled by the DCI.

[0112] like Fig.10As shown, in some aspects, the position of the AGC symbol for the non-SSB carrier in the time slot including the AGC symbol may be based at least in part on the value of K0 indicated in the DCI that schedules downlink communication (e.g., PDSCH communication) on the non-SSB carrier received by the UE 120. In some aspects, in the case where K0=0 (e.g., the offset between the DCI and the PDSCH communication scheduled by the DCI is equal to zero time slots), the position of the AGC symbol may be in the last symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol may be the previous time slot before the time slot in which downlink communication on the non-SSB carrier is scheduled (e.g., the previous time slot before the first time slot in which downlink communication is scheduled for the UE 120 on the non-SSB carrier after activation of the non-SSB carrier). In some aspects, where K0>0 (e.g., the offset between the DCI and the PDSCH communication scheduled by the DCI is greater than zero time slots), the position of the AGC symbol may be in the first symbol in the time slot that includes the AGC symbol, and the time slot that includes the AGC symbol may be one or more time slots before the time slot in which the downlink communication is scheduled. For example, where K0>0 and PDSCH communication is scheduled in time slot n, the position of the AGC symbol may be in the first symbol in the time slot that includes the AGC symbol, and the time slot that includes the AGC symbol may be time slot n-K0 (e.g., the time slot in which the DCI scheduling the PDSCH communication is sent to the UE 120).

[0113] like Fig.10 As shown, example 1000 shows an example configuration of AGC symbols for a non-SSB carrier in the case where K0=0. As shown in example 1000, in the case where K0=0, the DCI received by the UE 120 in time slot n may schedule PDSCH communication to be received by the UE 120 in time slot n. As shown by reference numeral 1002, in the case where K0=0, the position of the AGC symbol may be in the last symbol of time slot n-1 (e.g., the previous time slot before time slot n). As shown by reference numeral 1004, in the case where the AGC symbol is the last symbol in time slot n-1, the same signal may be repeated in the AGC symbol and the first symbol at the beginning of time slot n. That is, the signal sent by the network node 110 in the AGC symbol may be a repetition of the signal sent in the first symbol in time slot n.

[0114] like Fig.10As further shown, example 1010 shows an example configuration of an AGC symbol for a non-SSB carrier in the case where K0=1. As shown by reference numeral 1012, in the case where K0=1, the DCI received by UE 120 in time slot n-1 may schedule PDSCH communication to be received by UE 120 in time slot n. As shown by reference numeral 1014, in the case where K0=I, the position of the AGC symbol may be in the first symbol of time slot n-1 (e.g., the first symbol of time slot n-K0). As shown by reference numeral 1016, in the case where the AGC symbol is the first symbol in time slot n-1, the same signal may be repeated in the AGC symbol and the second symbol in time slot n-1. That is, the signal sent by network node 110 in the AGC symbol may be a repetition of the signal sent in the second symbol in time slot n-1.

[0115] As indicated above, Fig.10 are provided as examples. Other examples can be found in the Fig.10 The examples described are different.

[0116] Fig.11 is a diagram illustrating an example process 1100 performed, for example, by a UE in accordance with the present disclosure. Example process 1100 is an example in which a UE (eg, UE 120) performs operations associated with AGC in inter-band carrier aggregation with no SSB carriers.

[0117] like Fig.11 As shown, in some aspects, process 1100 may include: receiving, from a network node, a configuration of an AGC symbol for a non-SSB carrier, wherein the non-SSB carrier and at least one carrier transmitting the SSB are included in a plurality of carriers for inter-band carrier aggregation (block 1110). For example, a UE (e.g., using Fig.13 The depicted communication manager 140 and / or receiving component 1302) may receive a configuration of AGC symbols for a non-SSB carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation, as described above.

[0118] like Fig.11 As further shown, in some aspects, process 1100 may include receiving an indication of activation of a non-SSB carrier from a network node (block 1120). Fig.13 The depicted communications manager 140 and / or receiving component 1302) can receive an indication of activation of a non-SSB carrier from a network node, as described above.

[0119] like Fig.11As further shown, in some aspects, process 1100 may include measuring a signal strength on the non-SSB carrier in an AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier (block 1130). Fig.13 The depicted communications manager 140 and / or measurement component 1308) can measure signal strength on the non-SSB carrier in the AGC symbols for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier, as described above.

[0120] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0121] In a first aspect, process 1100 includes performing AGC for the non-SSB carrier based at least in part on the signal strength measured in the AGC symbol.

[0122] In a second aspect, process 1100 includes receiving downlink communications from the network node on the non-SSB carrier based at least in part on the AGC for the non-SSB carrier.

[0123] In a third aspect, the AGC symbol is the first symbol at the beginning of a time slot that includes the AGC symbol.

[0124] In a fourth aspect, the time slot including the AGC symbol is a first time slot after the activation of the non-SSB carrier in which downlink communications are scheduled for reception by the UE on the non-SSB carrier.

[0125] In a fifth aspect, the same signal is repeated in the AGC symbol and is the second symbol after the AGC symbol in the time slot including the AGC symbol.

[0126] In a sixth aspect, the time slot including the AGC symbol does not include any PDCCH symbol.

[0127] In a seventh aspect, the time slot including the AGC symbol includes one or more PDCCH symbols, and the one or more PDCCH symbols start from a second symbol after the AGC symbol in the time slot including the AGC symbol.

[0128] In an eighth aspect, the AGC symbol is the last symbol at the end of a time slot that includes the AGC symbol.

[0129] In a ninth aspect, the time slot including the AGC symbol is a previous time slot after the activation of the non-SSB carrier before a first time slot in which downlink communications are scheduled to be received by the UE on the non-SSB carrier.

[0130] In a tenth aspect, the same signal as in the first symbol at the beginning of the next slot after the slot including the AGC symbol is repeated in the AGC symbol.

[0131] In an eleventh aspect, the position of the AGC symbol in the time slot including the AGC symbol is based at least in part on an offset value included in the DCI between the DCI and a downlink communication scheduled by the DCI to be received by the UE on the non-SSB carrier.

[0132] In a twelfth aspect, in conjunction with the offset value being equal to zero slots, the position of the AGC symbol is in the last symbol in the slot including the AGC symbol, and the slot including the AGC symbol is the previous slot before the slot in which the downlink communication is scheduled.

[0133] In a thirteenth aspect, in conjunction with the offset value being greater than zero time slots, the position of the AGC symbol is the first symbol in the time slot that includes the AGC symbol, and the time slot that includes the AGC symbol is one or more time slots before the time slot in which the downlink communication is scheduled.

[0134] In a fourteenth aspect, the configuration indication for the AGC symbol of the non-SSB carrier includes a periodicity of a time slot of the AGC symbol of the non-SSB carrier.

[0135] In a fifteenth aspect, measuring the signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier comprises measuring the signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier at each of one or more occasions of the time slot including the AGC symbol for the SSB-free carrier based at least in part on the periodicity of the time slot including the AGC symbol for the SSB-free carrier.

[0136] although Fig.11 An example block diagram of process 1100 is shown, but in some aspects, the same Fig.11 The process 1100 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of the process 1100 may be performed in parallel.

[0137] Fig.12 is a diagram illustrating an example process 1200 performed, for example, by a network node in accordance with the present disclosure. The example process 1200 is an example in which a network node (eg, network node 110) performs operations associated with AGC in inter-band carrier aggregation with no SSB carriers.

[0138] like Fig.12 As shown, in some aspects, process 1200 may include: sending a configuration of AGC symbols for a non-SSB carrier to a UE, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in a plurality of carriers for inter-band carrier aggregation (block 1210). For example, a network node (e.g., using Fig.14 The depicted communication manager 150 and / or transmitting component 1404) may transmit to the UE a configuration of AGC symbols for a non-SSB carrier, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation, as described above.

[0139] like Fig.12 As further shown, in some aspects, process 1200 may include sending an indication of activation of the non-SSB carrier to the UE (block 1220). For example, a network node (e.g., using Fig.14 The depicted communications manager 150 and / or transmitting component 1404) can transmit an indication of activation of the non-SSB carrier to the UE, as described above.

[0140] like Fig.12 As further shown, in some aspects, process 1200 may include sending a signal to the UE in an AGC symbol for a non-SSB carrier to perform AGC measurements on the non-SSB carrier (block 1230). Fig.14 The depicted communications manager 150 and / or transmitting component 1404) may signal to the UE in an AGC symbol for a non-SSB carrier to conduct AGC measurements on the non-SSB carrier, as described above.

[0141] Process 1200 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0142] In a first aspect, process 1200 includes sending a downlink communication to the UE on the non-SSB carrier after sending the signal in the AGC symbol to be measured for the AGC on the non-SSB carrier.

[0143] In a second aspect, the AGC symbol is the first symbol at the beginning of a time slot that includes the AGC symbol.

[0144] In a third aspect, the time slot including the AGC symbol is a first time slot after the activation of the non-SSB carrier in which downlink communications are scheduled to be sent to the UE on the non-SSB carrier.

[0145] In a fourth aspect, sending the signal to be measured for the AGC on the non-SS SB carrier includes sending in the AGC symbol the same signal as in a second symbol after the AGC symbol in the slot that includes the AGC symbol.

[0146] In a fifth aspect, the time slot including the AGC symbol does not include any PDCCH symbol.

[0147] In a sixth aspect, the time slot including the AGC symbol includes one or more PDCCH symbols, and the one or more PDCCH symbols start from a second symbol after the AGC symbol in the time slot including the AGC symbol.

[0148] In a seventh aspect, the AGC symbol is the last symbol at the end of a time slot that includes the AGC symbol.

[0149] In an eighth aspect, the time slot including the AGC symbol is a previous time slot after the activation of the non-SSB carrier and before a first time slot in which downlink communications are scheduled to be sent to the UE on the non-SSB carrier.

[0150] In a ninth aspect, sending the signal to be measured for AGC on the non-SS SB carrier includes sending the same signal in the AGC symbol as in a first symbol at the beginning of a next slot after the slot including the AGC symbol.

[0151] In a tenth aspect, the position of the AGC symbol in a time slot including the AGC symbol is based at least in part on an offset value included in the DCI between the DCI and a downlink communication scheduled by the DCI to be sent to the UE on the non-SSB carrier.

[0152] In an eleventh aspect, in conjunction with the offset value being equal to zero time slots, the position of the AGC symbol is in the last symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is the previous time slot before the time slot in which the downlink communication is scheduled.

[0153] In a twelfth aspect, in conjunction with the offset value being greater than zero time slots, the position of the AGC symbol is the first symbol in the time slot that includes the AGC symbol, and the time slot that includes the AGC symbol is one or more time slots before the time slot in which the downlink communication is scheduled.

[0154] In a thirteenth aspect, the configuration indication for the AGC symbol of the non-SSB carrier includes a periodicity of a time slot of the AGC symbol of the non-SSB carrier.

[0155] In a fourteenth aspect, sending the signal to be measured for the AGC on the SSB-free carrier includes sending the signal to be measured for the AGC on the SSB-free carrier in the AGC symbol for the SSB-free carrier at each of one or more occasions of the time slot including the AGC symbol for the SSB-free carrier based at least in part on the periodicity of the time slot including the AGC symbol for the SSB-free carrier.

[0156] although Fig.12 An example block diagram of process 1200 is shown, but in some aspects, the same Fig.12 The process 1200 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of the process 1200 may be performed in parallel.

[0157] Fig.13 1 is a diagram of an example apparatus 1300 for wireless communication according to the present disclosure. Apparatus 1300 may be a UE, or a UE may include apparatus 1300. In some aspects, apparatus 1300 includes a receiving component 1302 and a transmitting component 1304 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1300 may communicate with another apparatus 1306 (such as a UE, a base station, or another wireless communication device) using receiving component 1302 and transmitting component 1304. As further shown, apparatus 1300 may include a communication manager 140. Communication manager 140 may include one or more of a measurement component 1308 and / or an AGC component 1310, among others.

[0158] In some aspects, the apparatus 1300 may be configured to perform Figures 6 to 10 Additionally or alternatively, the apparatus 1300 may be configured to perform one or more of the processes described herein such as Fig.11 In some aspects, Fig.13 The device 1300 and / or one or more components shown may include a combination of Figure 2 One or more components of the UE. Additionally or alternatively, Fig.13 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0159] The receiving component 1302 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1306. The receiving component 1302 may provide the received communications to one or more other components of the device 1300. In some aspects, the receiving component 1302 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1300. In some aspects, the receiving component 1302 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the UE.

[0160] The transmitting component 1304 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1306. In some aspects, one or more other components of the device 1300 may generate communications and may provide the generated communications to the transmitting component 1304 for transmission to the device 1306. In some aspects, the transmitting component 1304 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1306. In some aspects, the transmitting component 1304 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the UE. In some aspects, the transmit component 1304 can be co-located with the receive component 1302 in a transceiver.

[0161] The receiving component 1302 may receive a configuration of an AGC symbol for a non-SSB carrier from a network node, wherein the non-SSB carrier and at least one carrier transmitting the SSB are included in a plurality of carriers for inter-band carrier aggregation. The receiving component 1302 may receive an indication of activation of the non-SSB carrier from the network node. The measuring component 1308 may measure a signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier.

[0162] The AGC component 1310 can perform AGC for the non-SSB carrier based at least in part on the signal strength measured in the AGC symbols.

[0163] Receiving component 1302 can receive a downlink communication from a network node on the non-SSB carrier based at least in part on the AGC for the non-SSB carrier.

[0164] Fig.13The number and arrangement of components shown are provided as examples. Fig.13 There may be additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.13 Two or more components shown may be implemented in a single component, or Fig.13 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.13 The component set (one or more components) shown may be described as being executable by Fig.13 Another component shown may be a collection of components that perform one or more functions.

[0165] Fig.14 1 is a diagram of an example apparatus 1400 for wireless communication according to the present disclosure. Apparatus 1400 may be a network node, or a network node may include apparatus 1400. In some aspects, apparatus 1400 includes a receiving component 1402 and a sending component 1404 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1400 may communicate with another apparatus 1406 (such as a UE, a base station, or another wireless communication device) using receiving component 1402 and sending component 1404. As further shown, apparatus 1400 may include a communication manager 150. Communication manager 150 may include a determining component 1408, among other things.

[0166] In some aspects, the apparatus 1400 may be configured to perform Figures 6 to 10 Additionally or alternatively, the apparatus 1400 may be configured to perform one or more of the processes described herein such as Fig.12 In some aspects, Fig.14 The device 1400 and / or one or more components shown may include a combination of Figure 2 One or more components of the network node. Additionally or alternatively, Fig.14 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0167] The receiving component 1402 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1406. The receiving component 1402 may provide the received communications to one or more other components of the device 1400. In some aspects, the receiving component 1402 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1400. In some aspects, the receiving component 1402 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network node.

[0168] The transmitting component 1404 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1406. In some aspects, one or more other components of the device 1400 may generate communications and may provide the generated communications to the transmitting component 1404 for transmission to the device 1406. In some aspects, the transmitting component 1404 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1406. In some aspects, the transmitting component 1404 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node. In some aspects, the transmit component 1404 can be co-located with the receive component 1402 in a transceiver.

[0169] The transmitting component 1404 may transmit to the UE a configuration of an AGC symbol for a non-SSB carrier, wherein the non-SSB carrier and at least one carrier transmitting SSB are included in a plurality of carriers for inter-band carrier aggregation. The transmitting component 1404 may transmit to the UE an indication of activation of the non-SSB carrier. The transmitting component 1404 may transmit to the UE a signal to be measured for AGC on the non-SSB carrier in the AGC symbol for the non-SSB carrier.

[0170] Determining component 1408 can determine a configuration of AGC symbols for a non-SSB carrier for the UE.

[0171] Transmitting component 1404 may transmit a downlink communication to the UE on the non-SSB carrier after transmitting a signal in the AGC symbol to be measured for AGC on the non-SSB carrier.

[0172] Fig.14 The number and arrangement of components shown are provided as examples. Fig.14There may be additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.14 Two or more components shown may be implemented in a single component, or Fig.14 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.14 The component set (one or more components) shown may be described as being executable by Fig.14 Another component shown may be a collection of components that perform one or more functions.

[0173] The following provides an overview of some aspects of the disclosure:

[0174] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a configuration of an automatic gain control (AGC) symbol for a synchronization signal block (SSB)-free carrier from a network node, wherein the SSB-free carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation; receiving an indication of activation of the SSB-free carrier from the network node; and measuring a signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier according to the configuration of the AGC for the SSB-free carrier.

[0175] Aspect 2: The method according to aspect 1, further comprising: performing AGC for the non-SSB carrier based at least in part on the signal strength measured in the AGC symbol.

[0176] Aspect 3: The method of aspect 2, further comprising: receiving downlink communications from the network node on the non-SSB carrier based at least in part on the AGC for the non-SSB carrier.

[0177] Aspect 4: The method according to any one of aspects 1 to 3, wherein the AGC symbol is the first symbol at the beginning of a time slot including the AGC symbol.

[0178] Aspect 5: The method of aspect 4, wherein the time slot including the AGC symbol is a first time slot after the activation of the non-SSB carrier in which downlink communications are scheduled to be received by the UE on the non-SSB carrier.

[0179] Aspect 6: The method according to any one of aspects 4 to 5, wherein the same signal is repeated in the AGC symbol and is the second symbol after the AGC symbol in the time slot including the AGC symbol.

[0180] Aspect 7: The method according to any one of aspects 4 to 6, wherein the time slot including the AGC symbol does not include any physical downlink control channel (PDCCH) symbol.

[0181] Aspect 8: A method according to any one of Aspects 4 to 6, wherein the time slot including the AGC symbol includes one or more physical downlink control channel (PDCCH) symbols, and the one or more physical downlink control channel (PDCCH) symbols start at the second symbol after the AGC symbol in the time slot including the AGC symbol.

[0182] Aspect 9: The method according to any one of aspects 1 to 3, wherein the AGC symbol is the last symbol at the end of a time slot including the AGC symbol.

[0183] Aspect 10: The method according to aspect 9, wherein the time slot including the AGC symbol is a previous time slot before a first time slot in which downlink communication is scheduled to be received by the UE on the non-SSB carrier after the activation of the non-SSB carrier.

[0184] Aspect 11: A method according to any one of aspects 9 to 10, wherein the same signal as in the first symbol at the beginning of the next time slot after the time slot including the AGC symbol is repeated in the AGC symbol.

[0185] Aspect 12: A method according to any one of Aspects 1 to 11, wherein the position of the AGC symbol in the time slot including the AGC symbol is at least partially based on an offset value included in downlink control information (DCI) between the DCI and the downlink communication scheduled by the DCI to be received by the UE on the SSB-free carrier.

[0186] Aspect 13: A method according to Aspect 12, wherein in combination with the offset value being equal to zero time slots, the position of the AGC symbol is in the last symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is the previous time slot before the time slot in which the downlink communication is scheduled.

[0187] Aspect 14: A method according to Aspect 12, wherein in combination with the offset value being greater than zero time slots, the position of the AGC symbol is the first symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is one or more time slots prior to the time slot in which the downlink communication is scheduled.

[0188] Aspect 15: The method according to any one of aspects 1 to 14, wherein the configuration indication for the AGC symbol of the non-SSB carrier includes a periodicity of a time slot of the AGC symbol of the non-SSB carrier.

[0189] Aspect 16: A method according to Aspect 15, wherein measuring the signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier includes: measuring the signal strength on the SSB-free carrier in the AGC symbol for the SSB-free carrier at each of one or more occasions of the time slot including the AGC symbol for the SSB-free carrier based at least in part on the periodicity of the time slot including the AGC symbol for the SSB-free carrier.

[0190] Aspect 17: A method of wireless communication performed by a network node, the method comprising: sending a configuration of an automatic gain control (AGC) symbol for a carrier without a synchronization signal block (SSB) to a user equipment (UE), wherein the SSB-free carrier and at least one carrier transmitting SSB are included in multiple carriers for inter-band carrier aggregation; sending an indication of activation of the SSB-free carrier to the UE; and sending a signal to the UE in the AGC symbol for the SSB-free carrier to perform AGC measurements on the SSB-free carrier.

[0191] Aspect 18: The method according to aspect 17, the method further comprising: after sending the signal to be measured for AGC on the non-SSB carrier in the AGC symbol, sending downlink communication to the UE on the non-SSB carrier.

[0192] Aspect 19: The method according to any one of aspects 17 to 18, wherein the AGC symbol is the first symbol at the beginning of a time slot including the AGC symbol.

[0193] Aspect 20: The method of aspect 19, wherein the time slot including the AGC symbol is a first time slot in which downlink communication is scheduled to be sent to the UE on the non-SSB carrier after the activation of the non-SSB carrier.

[0194] Aspect 21: A method according to any one of Aspects 19 to 20, wherein sending the signal to be measured for AGC on the SSB-free carrier includes: sending in the AGC symbol the same signal as in the second symbol after the AGC symbol in the time slot including the AGC symbol.

[0195] Aspect 22: A method according to any one of aspects 19 to 21, wherein the time slot including the AGC symbol does not include any physical downlink control channel (PDCCH) symbol.

[0196] Aspect 23: A method according to any one of Aspects 19 to 21, wherein the time slot including the AGC symbol includes one or more physical downlink control channel (PDCCH) symbols, and the one or more physical downlink control channel (PDCCH) symbols start at the second symbol after the AGC symbol in the time slot including the AGC symbol.

[0197] Aspect 24: The method according to any one of aspects 17 to 18, wherein the AGC symbol is the last symbol at the end of a time slot including the AGC symbol.

[0198] Aspect 25: The method according to aspect 24, wherein the time slot including the AGC symbol is a previous time slot after the activation of the non-SSB carrier and before a first time slot in which downlink communication is scheduled to be sent to the UE on the non-SSB carrier.

[0199] Aspect 26: A method according to any one of Aspects 24 to 25, wherein sending the signal to be measured for AGC on the SSB-free carrier includes: sending the same signal in the AGC symbol as in the first symbol at the beginning of the next time slot after the time slot including the AGC symbol.

[0200] Aspect 27: A method according to any one of Aspects 17 to 26, wherein the position of the AGC symbol in the time slot including the AGC symbol is based at least in part on an offset value included in downlink control information (DCI) between the DCI and the downlink communication scheduled by the DCI to be sent to the UE on the SSB-free carrier.

[0201] Aspect 28: A method according to Aspect 27, wherein, in combination with the offset value being equal to zero time slots, the position of the AGC symbol is in the last symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is the previous time slot before the time slot in which the downlink communication is scheduled.

[0202] Aspect 29: A method according to Aspect 27, wherein in combination with the offset value being greater than zero time slots, the position of the AGC symbol is the first symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is one or more time slots prior to the time slot in which the downlink communication is scheduled.

[0203] Aspect 30: The method according to any one of aspects 17 to 29, wherein the configuration indication for the AGC symbol of the non-SSB carrier includes a periodicity of a time slot of the AGC symbol of the non-SSB carrier.

[0204] Aspect 31: A method according to Aspect 30, wherein sending the signal to be measured for the AGC on the SSB-free carrier includes: sending the signal to be measured for the AGC on the SSB-free carrier in the AGC symbol for the SSB-free carrier at each of one or more occasions of the time slot including the AGC symbol for the SSB-free carrier based at least in part on the periodicity of the time slot including the AGC symbol for the SSB-free carrier.

[0205] Aspect 32: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 16.

[0206] Aspect 33: A device for wireless communication, the device comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 16.

[0207] Aspect 34: An apparatus for wireless communication, the apparatus comprising: at least one component for performing the method according to one or more of aspects 1 to 16.

[0208] Aspect 35: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 16.

[0209] Aspect 36: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 16.

[0210] Aspect 37: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 17 to 31.

[0211] Aspect 38: A device for wireless communication, the device comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 17 to 31.

[0212] Aspect 39: An apparatus for wireless communication, the apparatus comprising: at least one component for performing the method according to one or more of aspects 17 to 31.

[0213] Aspect 40: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 17 to 31.

[0214] Aspect 41: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 17 to 31.

[0215] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the various aspects.

[0216] As used herein, the term "component" is intended to be broadly interpreted as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in different forms of hardware and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit the aspects. Therefore, no reference is made to specific software codes to describe the operation and behavior of the systems and / or methods herein, because those skilled in the art will understand that software and hardware can be designed to implement the systems and / or methods based at least in part on the descriptions herein.

[0217] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0218] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (which includes a single member). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other ordering of a, b and c).

[0219] Any element, action or instruction used herein should not be interpreted as key or necessary unless explicitly stated. In addition, as used herein, the article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If you only want to refer to an item, the phrase "only one" or similar terms will be used. Moreover, as used herein, the terms "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element with" A can also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and used interchangeably with "and / or" unless explicitly stated otherwise (e.g., if used in conjunction with "either" or "only one of").

Claims

1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: receiving, from a network node, a configuration of an automatic gain control (AGC) symbol for a carrier without a synchronization signal block (SSB), wherein the carrier without the SSB and at least one carrier transmitting the SSB are included in a plurality of carriers for inter-band carrier aggregation; receiving an indication of activation of the non-SSB carrier from the network node; as well as Signal strength on the non-SSB carrier is measured in the AGC symbols for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier.

2. The UE of claim 1, wherein the one or more processors are further configured to: AGC is performed for the non-SSB carrier based at least in part on the signal strength measured in the AGC symbol.

3. The UE of claim 2, wherein the one or more processors are further configured to: A downlink communication is received from the network node on the non-SSB carrier based at least in part on the AGC for the non-SSB carrier. 4 . The UE of claim 1 , wherein the AGC symbol is the first symbol at the beginning of a slot including the AGC symbol.

5. The UE of claim 4, wherein the time slot including the AGC symbol is a first time slot after the activation of the non-SSB carrier in which downlink communications are scheduled to be received by the UE on the non-SSB carrier. 6 . The UE according to claim 4 , wherein the same signal is repeated in the AGC symbol and is a second symbol after the AGC symbol in the time slot including the AGC symbol.

7. The UE of claim 4, wherein the time slot including the AGC symbol does not include any physical downlink control channel (PDCCH) symbol.

8. The UE according to claim 4, wherein the time slot including the AGC symbol includes one or more physical downlink control channel (PDCCH) symbols, and the one or more physical downlink control channel (PDCCH) symbols start from the second symbol after the AGC symbol in the time slot including the AGC symbol.

9. The UE of claim 1, wherein the AGC symbol is a last symbol at the end of a slot including the AGC symbol.

10. The UE of claim 9, wherein the time slot including the AGC symbol is a previous time slot after the activation of the non-SSB carrier and before a first time slot in which downlink communication is scheduled to be received by the UE on the non-SSB carrier. 11 . The UE of claim 9 , wherein the same signal as in a first symbol at the beginning of a next slot after the slot including the AGC symbol is repeated in the AGC symbol.

12. The UE of claim 1 , wherein the position of the AGC symbol in a time slot including the AGC symbol is based at least in part on an offset value included in downlink control information (DCI) between the DCI and a downlink communication scheduled by the DCI to be received by the UE on the non-SSB carrier.

13. The UE according to claim 12, wherein in combination with the offset value being equal to zero time slots, the position of the AGC symbol is in the last symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is the previous time slot before the time slot in which the downlink communication is scheduled.

14. The UE according to claim 12, wherein in combination with the offset value being greater than zero time slots, the position of the AGC symbol is the first symbol in the time slot including the AGC symbol, and the time slot including the AGC symbol is one or more time slots before the time slot in which the downlink communication is scheduled.

15. The UE of claim 1, wherein the configuration indication for the AGC symbol of the non-SSB carrier comprises a periodicity of a time slot of the AGC symbol of the non-SSB carrier.

16. The UE of claim 15, wherein to measure the signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier, the one or more processors are configured to: The signal strength on the non-SSB carrier is measured in the AGC symbol for the non-SSB carrier in each of one or more occasions of the time slot including the AGC symbol for the non-SSB carrier based at least in part on the periodicity of the time slot including the AGC symbol for the non-SSB carrier.

17. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: Sending a configuration of an automatic gain control (AGC) symbol for a non-synchronization signal block (SSB) carrier to a user equipment (UE), wherein the non-SSB carrier and at least one carrier transmitting the SSB are included in a plurality of carriers for inter-band carrier aggregation; sending an indication of activation of the non-SSB carrier to the UE; as well as A signal to be performed for AGC measurements on the non-SSB carrier is sent to the UE in the AGC symbol for the non-SSB carrier.

18. The network node of claim 17, wherein the one or more processors are further configured to: After sending the signal in the AGC symbol to be measured for AGC on the non-SSB carrier, a downlink communication is sent to the UE on the non-SSB carrier.

19. The network node of claim 17, wherein the AGC symbol is the first symbol at the beginning of a time slot including the AGC symbol, and the time slot including the AGC symbol is the first time slot in which downlink communication is scheduled to be sent to the UE on the non-SSB carrier after the activation of the non-SSB carrier.

20. The network node of claim 17, wherein the AGC symbol is the last symbol at the end of a time slot including the AGC symbol, and the time slot including the AGC symbol is a previous time slot after the activation of the non-SSB carrier and before a first time slot in which downlink communication is scheduled to be sent to the UE on the non-SSB carrier.

21. The network node of claim 17, wherein the position of the AGC symbol in a time slot including the AGC symbol is based at least in part on an offset value included in downlink control information (DCI) between the DCI and a downlink communication scheduled by the DCI to be sent to the UE on the non-SSB carrier.

22. The network node of claim 17, wherein the configuration indication for the AGC symbols for the non-SSB carrier comprises a periodicity of time slots for the AGC symbols for the non-SSB carrier, and wherein to send the signal to be measured for AGC on the non-SSB carrier, the one or more processors are configured to: The signal to be measured for the AGC on the non-SSB carrier is sent in the AGC symbol for the non-SSB carrier in each of one or more occasions of the time slot including the AGC symbol for the non-SSB carrier based at least in part on the periodicity of the time slot including the AGC symbol for the non-SSB carrier.

23. A method of wireless communication performed by a user equipment (UE), the method comprising: receiving, from a network node, a configuration of an automatic gain control (AGC) symbol for a carrier without a synchronization signal block (SSB), wherein the carrier without the SSB and at least one carrier transmitting the SSB are included in a plurality of carriers for inter-band carrier aggregation; receiving an indication of activation of the non-SSB carrier from the network node; and measuring a signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier according to the configuration of the AGC for the non-SSB carrier.

24. The method according to claim 23, further comprising: AGC is performed for the non-SSB carrier based at least in part on the signal strength measured in the AGC symbol.

25. The method of claim 23, wherein the AGC symbol is the first symbol at the beginning of a time slot including the AGC symbol, and the time slot including the AGC symbol is the first time slot in which downlink communication is scheduled to be received by the UE on the non-SSB carrier after the activation of the non-SSB carrier.

26. The method of claim 23, wherein the AGC symbol is the last symbol at the end of a time slot including the AGC symbol, and the time slot including the AGC symbol is a previous time slot after the activation of the non-SSB carrier and before a first time slot in which downlink communication is scheduled to be received by the UE on the non-SSB carrier.

27. The method of claim 23, wherein the position of the AGC symbol in a time slot including the AGC symbol is based at least in part on an offset value included in downlink control information (DCI) between the DCI and a downlink communication scheduled by the DCI to be received by the UE on the non-SSB carrier.

28. The method of claim 23, wherein the configuration indication for the AGC symbol for the non-SSB carrier includes a periodicity of a time slot for the AGC symbol for the non-SSB carrier, and wherein measuring a signal strength on the non-SSB carrier in the AGC symbol for the non-SSB carrier comprises: The signal strength on the non-SSB carrier is measured in the AGC symbol for the non-SSB carrier in each of one or more occasions of the time slot including the AGC symbol for the non-SSB carrier based at least in part on the periodicity of the time slot including the AGC symbol for the non-SSB carrier.

29. A method of wireless communication performed by a network node, the method comprising: transmitting a configuration of an automatic gain control (AGC) symbol for a carrier without a synchronization signal block (SSB) to a user equipment (UE), wherein the carrier without the SSB and at least one carrier transmitting the SSB are included in a plurality of carriers for inter-band carrier aggregation; sending an indication of activation of the non-SSB carrier to the UE; as well as A signal to be performed for AGC measurements on the non-SSB carrier is sent to the UE in the AGC symbol for the non-SSB carrier.

30. The method according to claim 29, further comprising: After sending the signal in the AGC symbol to be measured for AGC on the non-SSB carrier, a downlink communication is sent to the UE on the non-SSB carrier.

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