Re-coded physical broadcast channel PBCH for channel estimation

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (uE) may receive a first physical broadcast channel (PBCH) communication on a channel. The UE may decode the first PBCH communication as a decoded PBCH payload. The UE may re-encode the decoded PBCH payload as a first pilot signal. The UE may receive a first data communication with first data. The UE may correct the channel for the first data based on the first pilot signal. The UE may decode the first data. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Patent Application No. 17 / 932,065, filed on September 14, 2022, entitled “PHYSICAL BROADCAST CHANNELFOR CHANNEL CORRECTION” and assigned to the assignee of this application. The disclosure of the prior application is considered a part of this patent application and is incorporated by reference into this patent application. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for channel correction using a physical broadcast channel. 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. A UE may communicate with a network node 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 side link (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: improving spectrum efficiency; reducing costs; improving services; utilizing new spectrum; and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink, 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 to better integrate with other open standards; and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0007] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE) or a device of the UE. The method may include receiving a first physical broadcast channel (PBCH) communication on a channel. The method may include decoding the first PBCH communication into a decoded PBCH payload. The method may include re-encoding the decoded PBCH payload into a first pilot signal. The method may include receiving a first data communication with first data. The method may include correcting the channel for the first data based on the first pilot signal. The method may include decoding the first data.

[0008] Some aspects described herein relate to a device for a UE for wireless communication. The device may include a memory, one or more processors coupled to the memory, and instructions stored in the memory and executable by the one or more processors. These instructions may be executable by the one or more processors to enable the UE to receive a first PBCH communication on a channel. These instructions may be executable by the one or more processors to enable the UE to decode the first PBCH communication into a decoded PBCH payload. These instructions may be executable by the one or more processors to enable the UE to re-encode the decoded PBCH payload into a first pilot signal. These instructions may be executable by the one or more processors to enable the UE to receive a first data communication with a first data. These instructions may be executable by the one or more processors to enable the UE to correct the channel for the first data based on the first pilot signal. These instructions may be executable by the one or more processors to enable the user equipment to decode the first data.

[0009] Some aspects described herein relate to a non-transitory computer-readable medium storing one or more instructions for wireless communication performed by a UE. The one or more instructions, when executed by one or more processors of the UE, may cause the UE to receive a first PBCH communication on a channel. The one or more instructions, when executed by one or more processors of the UE, may cause the UE to decode the first PBCH communication into a decoded PBCH payload. The one or more instructions, when executed by one or more processors of the UE, may cause the UE to re-encode the decoded PBCH payload into a first pilot signal. The one or more instructions, when executed by one or more processors of the UE, may cause the UE to receive a first data communication with first data. The one or more instructions, when executed by one or more processors of the UE, may cause the UE to correct the channel for the first data based on the first pilot signal. The one or more instructions, when executed by one or more processors of the UE, may cause the UE to decode the first data.

[0010] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving a first PBCH communication on a channel. The apparatus may include components for decoding the first PBCH communication into a decoded PBCH payload. The apparatus may include components for re-encoding the decoded PBCH payload into a first pilot signal. The apparatus may include components for receiving a first data communication with first data. The apparatus may include components for correcting the channel for the first data based on the first pilot signal. The apparatus may include components for decoding the first data.

[0011] The various aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, UEs, 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.

[0012] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above 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 achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description 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.

[0013] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0015] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0016] 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.

[0017] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0018] Figure 4 is a diagram illustrating an example of physical channels and reference signals in a wireless network according to the present disclosure.

[0019] Figure 5 is a diagram illustrating an example of training data for channel estimation according to the present disclosure.

[0020] Figure 6 is a diagram illustrating an example of encoding according to the present disclosure.

[0021] Figure 7 is a diagram illustrating an example of a polarization-coded butterfly lattice according to the present disclosure.

[0022] Figure 8 is a diagram illustrating an example associated with re-encoding a physical broadcast channel payload into a pilot signal according to the present disclosure.

[0023] Fig. 9 is a diagram illustrating an example process performed, for example, by a uE according to the present disclosure.

[0024] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0025] 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 devices or methods implemented using other structures, functions, or structures and functions in addition to 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.

[0026] 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.

[0027] 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).

[0028] 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). For 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)).

[0029] In some examples, the network node 110 is or includes a network node (such as an RU) that communicates with the UE 120 via a radio access link. In some examples, the network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, the network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with the core network via a backhaul link. 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. The network node 110 may include, for example, 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 via various types of fronthaul, midhaul, and / or backhaul interfaces, such as direct physical connections, air interfaces, or virtual networks, using any suitable transport network.

[0030] 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 1 In 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).

[0031] 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", "network entity", 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 terms "base station", "network entity" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.

[0032] 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 is capable of relaying 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 communication 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.

[0033] 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).

[0034] 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.

[0035] 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.

[0036] 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.

[0037] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0038] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary to communicate with each other). 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.

[0039] 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).

[0040] 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 FR1 characteristics and / or FR2 characteristics, so the features of FR1 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-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.

[0041] With the above examples in mind, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, 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., FR1, 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.

[0042] In some aspects, UE 120 may include a communications manager 140. As described in greater detail elsewhere herein, communications manager 140 may receive a first physical broadcast channel (PBCH) communication on a channel. Communications manager 140 may decode the first PBCH communication into a decoded PBCH payload. Communications manager 140 may re-encode the decoded PBCH payload into a first pilot signal. Communications manager 140 may receive a first data communication with first data. Communications manager 140 may correct the channel for the first data based on the first pilot signal. Communications manager 140 may decode the first data. Additionally or alternatively, communications manager 140 may perform one or more other operations described herein.

[0043] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The content described is different.

[0044] 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.

[0045] At network node 110, transmit processor 220 may receive data intended for UE 120 (or a set of UEs 120) from data source 212. Transmit processor 220 may select one or more modulation and coding schemes (MCS) for UE 120 based at least in part on one or more channel quality indicators (CQIs) received from UE 120. Network node 110 may process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS selected for UE 120, and may provide data symbols for UE 120. 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).

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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 4 to 10 ) or any aspect of any of the methods described herein.

[0050] 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 (shown as DEMOD) of the modem 232), 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 to schedule one or more UEs 120 for downlink communication and / or uplink communication. 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 4 to 10 ) or any aspect of any of the methods described herein.

[0051] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the network node 110 may perform one or more techniques associated with using the PBCH for channel correction as described in more detail elsewhere herein. For example, 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. 9 900 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 executed, or executed 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. 9 The process 900 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.

[0052] In some aspects, the UE 120 includes: a component for receiving a first PBCH communication on a channel; a component for decoding the first PBCH communication into a decoded PBCH payload; a component for re-encoding the decoded PBCH payload into a first pilot signal; a component for receiving a first data communication with first data; a component for correcting the channel for the first data based on the first pilot signal; and / or a component for decoding the first data. The components for the UE 120 to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0053] 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.

[0054] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2The content described is different.

[0055] The deployment of a communication system such as a 5G NR system can be arranged in a variety of ways with various components or constituent parts. 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) performing 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).

[0056] 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 the CU, DU, and 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.

[0057] 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. Individual 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.

[0058] Figure 33 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated 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 simultaneously by multiple RUs 340.

[0059] 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, the one or more interfaces being 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 the 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, the wireless interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, or both.

[0060] 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 divided 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.

[0061] 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 partitioning (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.

[0062] 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 or low PHY layer functions based on functional split (e.g., functional split defined by 3GPP) (such as lower layer functional split), 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).

[0063] The SMO framework 305 may be configured to support RAN deployment and configuration 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-RTRIC 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.

[0064] The non-RT RIC 315 may be configured to include logic functions that enable 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 enable 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.

[0065] 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).

[0066] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The content described is different.

[0067] Figure 4 4 is a diagram illustrating an example 400 of physical channels and reference signals in a wireless network according to the present disclosure. Figure 4 As shown, the downlink channel and the downlink reference signal may carry information from the network node 110 to the UE 120 , and the uplink channel and the uplink reference signal may carry information from the UE 120 to the network node 110 .

[0068] As shown, the downlink channel may include a physical downlink control channel (PDCCH) carrying downlink control information (DCI), a physical downlink shared channel (PDSCH) carrying downlink data, or a PBCH carrying system information, etc. In some aspects, PDSCH communication may be scheduled by PDCCH communication. As further shown, the uplink channel may include a physical uplink control channel (PUCCH) carrying uplink control information (uCI), a physical uplink shared channel (PUSCH) carrying uplink data, or a physical random access channel (PRACH) for initial network access, etc. In some aspects, UE 120 may send confirmation (ACK) or negative confirmation (NACK) feedback (e.g., ACK / NACK feedback or ACK / NACK information) in the UCI on PUCCH and / or PUSCH.

[0069] As further shown, the downlink reference signal may include a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a DMRS, a positioning reference signal (PRS), or a phase tracking reference signal (PTRS), etc. As also shown, the uplink reference signal may include a sounding reference signal (SRS), a DMRS, or a PTRS, etc.

[0070] The SSB may carry information used for initial network acquisition and synchronization, such as PSS, SSS, PBCH, and PBCH DMRS. The SSB is sometimes referred to as a synchronization signal / PBCH (SS / PBCH) block. In some aspects, the network node 110 may send multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection.

[0071] The CSI-RS may carry information for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, etc. The network node 110 may configure a CSI-RS set for the UE 120, and the UE 120 may measure the configured CSI-RS set. Based at least in part on these measurement results, the UE 120 may perform channel estimation and may report channel estimation parameters such as a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), a layer indicator (LI), a rank indicator (RI), or a reference signal received power (RSRP), etc., to the network node 110 (e.g., in a CSI report). The network node 110 may use the CSI reports to select transmission parameters for downlink communications to the UE 120, such as the number of transmission layers (e.g., rank), a precoding matrix (e.g., a precoder), a modulation and coding scheme (MCS), or to refine the downlink beams (e.g., using a beam refinement procedure or a beam management procedure), among others.

[0072] DMRS may carry information for estimating a radio channel to demodulate an associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of DMRS may be specific to the physical channel that the DMRS is used to estimate. DMRS is UE-specific, may be beamformed, may be restricted to scheduled resources (e.g., rather than being sent over a wideband), and may be sent only when necessary. As shown, DMRS is used for both downlink and uplink communications.

[0073] PTRS may carry information for compensating for oscillator phase noise. Typically, phase noise increases with increasing oscillator carrier frequency. Therefore, PTRS may be utilized at high carrier frequencies (such as millimeter wave frequencies) to mitigate phase noise. PTRS may be used to track the phase of a local oscillator and to achieve suppression of phase noise and common phase error (CPE). As shown, PTRS is used for both downlink communications (e.g., on PDSCH) and uplink communications (e.g., on PUSCH).

[0074] The PRS may carry information for implementing timing or ranging measurements of the UE 120 based on signals sent by the network node 110 to improve observed time difference of arrival (OTDOA) positioning performance. For example, the PRS may be a pseudo-random quadrature phase shift keying (QPSK) sequence mapped in a diagonal pattern with a frequency offset and a time offset to avoid conflicts with cell-specific reference signals and control channels (e.g., PDCCH). In general, the PRS may be designed to improve the detectability of the UE 120, which may need to detect downlink signals from multiple adjacent neighboring network nodes in order to perform OTDOA-based positioning. Therefore, the UE 120 may receive PRS from multiple cells (e.g., a reference cell and one or more neighboring cells), and may report a reference signal time difference (RSTD) based on OTDOA measurements associated with the PRS received from the multiple cells. In some aspects, the network node 110 may then calculate the position of the UE 120 based on the RSTD measurements reported by the UE 120.

[0075] The SRS may carry information for uplink channel estimation, which may be used for scheduling, link adaptation, pre-decoder selection, or beam management, etc. The network node 110 may configure one or more SRS resource sets for the UE 120, and the UE 120 may send the SRS on the configured SRS resource sets. The SRS resource set may have configured purposes such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operation, uplink beam management, etc. The network node 110 may measure the SRS, may perform channel estimation based at least in part on these measurement results, and may use the SRS measurement results to configure communications with the UE 120.

[0076] Previous network designs (e.g., 3G, LTE) use frequent common or pilot signals to help channel correction. Channel correction involves estimating the channel used for the received communication or the change of the channel, and correcting the channel based on the channel estimate. Channel correction helps the communication to be correctly decoded when a time offset or frequency phase offset occurs when it is transmitted on the channel. In one example, LTE uses CRS or common reference signal as a pilot signal. CRS is a frequent (e.g., every 1 millisecond (ms)) full-bandwidth signal that consumes a lot of power. The 5G NR network replaces CRS with a less frequent tracking reference signal (TRS). TRS can be every 20ms to 80ms. However, the time period between TRS may be too long, so that some communications are affected by changes in time or frequency on the channel. There is also less training data for estimating the tracking loop and for channel estimation. Without proper channel correction, communication may be degraded, which increases latency and wastes power, processing resources, and signaling resources.

[0077] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The content described is different.

[0078] Figure 5 is a diagram illustrating an example 500 of training data for channel estimation according to the present disclosure.

[0079] According to various aspects described herein, a UE may decode a PBCH communication to obtain a decoded PBCH payload. The UE may then re-encode the decoded PBCH payload to be used as a pilot signal. The pilot signal may be used for channel estimation and correction. Because PBCH communications arrive every 5ms to 20ms (as compared to 20ms to 80ms of TRS), pilot signals from PBCH communications may provide more frequent opportunities for channel estimation. PBCH may also provide more training data for channel estimation. For example, instead of using only the DMRS in the PBCH, additional PBCH data may be added to the training data. Example 500 shows a resource element (RE) in one symbol and 12 tones of an SSS signal currently used for loop or channel estimation. However, example 500 also shows a larger number of REs for PBCH that may be used as additional training data for channel estimation. More training data (e.g., 4 times or 5 times) results in more accurate channel estimation and greater processing gain (e.g., 6dB).

[0080] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The content described is different.

[0081] Figure 6 is a diagram illustrating an example 600 of encoding according to the present disclosure.

[0082] Example 600 illustrates an existing encoding process as described in 3GPP Technical Specification (TS) 38.212. Such a process may be used to encode a PBCH payload to obtain a PBCH communication or to encode data to obtain a data communication. Once the payload is generated, it may be scrambled and a cyclic redundancy check (CRC) may be appended for reliability verification. The process may continue with payload interleaving to rearrange the data according to a defined pattern and then bit mapping. The process may continue with polar encoding, which transforms the data into a larger amount of data through replication and combination to achieve redundancy and reliability. The process further continues with sub-block interleaving and bit selection.

[0083] Another process may be used to decode the PBCH communication to obtain the PBCH payload. This may involve a decoding process that is the reverse of the encoding process.

[0084] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The content described is different.

[0085] Figure 7 is a diagram illustrating an example 700 of a polarization-coded butterfly grid according to the present disclosure.

[0086] Polarization coding may use a defined butterfly grid, which is a defined pattern for increasing redundancy and reliability of data. In example 700, one letter represents one data portion. The data portion may be replicated and / or combined with other portions of the data to achieve redundancy (e.g., using XOR or deal operations). For example, in the first level (first column), data portion "a" may be combined with data portion "b". Combined data portion "ab" may be combined with combined data portion "cd". Combined data portion "abcd" may be combined with combined data portion "efgh" to form combined data portion "abcdefgh". In some aspects, the UE may encode the decoded PBCH payload based at least in part on the per-level instructions of the butterfly grid for polarization coding.

[0087] As indicated above, Figure 7 are provided as examples. Other examples can be found in the Figure 7 The content described is different.

[0088] Figure 8 8 is a diagram illustrating an example 800 associated with re-encoding a PBCH payload into a pilot signal according to the present disclosure. Figure 8 As shown, a network entity 810 (eg, network node 110) and a UE 820 (eg, UE 120) may communicate with each other via a wireless network (eg, wireless network 100).

[0089] As shown by reference numeral 825, network entity 810 may send a first PBCH communication on a channel. As shown by reference numeral 830, UE 820 may decode the first PBCH communication to obtain a decoded PBCH payload. As shown by reference numeral 835, UE 820 may re-encode the decoded PBCH payload to obtain a first pilot signal. The re-encoding may use an encoding process, such as in combination with Figure 6 and Figure 7 In some aspects, re-encoding may occur if the first PBCH communication is successfully decoded. If the decoding of the first PBCH communication is unsuccessful, the UE 820 may not re-encode the decoded PBCH payload.

[0090] As shown by reference numeral 840, network entity 810 may send a first data communication with first data on a channel. As shown by reference numeral 845, UE 820 may correct the channel for the first data based on the first pilot signal. Correcting the channel may involve obtaining a channel estimate based on comparing a received antenna point signal of the first PBCH communication with the first pilot signal (expected antenna point signal), as shown by reference numeral 850. The received antenna point signal may be a signal as received at the antenna before decoding. The expected antenna point signal may be a signal at the antenna after re-encoding. The comparison may result in a difference between the received antenna point signal and the expected antenna point signal. The difference may be in time (e.g., 1 or 2 symbols) and / or in frequency (e.g., phase shift). As shown by reference numeral 855, UE 820 may correct the channel for the first data based on the difference, which may include enhanced channel estimates relative to previous channel estimation techniques. For example, as shown by reference numeral 860, before decoding the first data communication, the time or frequency difference (or channel estimate) may be added to or subtracted from the received antenna point signal of the first data communication to obtain the decoded first data.

[0091] In some aspects, the UE 820 may utilize the channel estimate associated with re-encoding the decoded PBCH payload to perform other actions. For example, the UE 820 may perform beam selection, RSRP estimation, delay bin estimation, Doppler estimation, and / or time-to-live (TTL) estimation.

[0092] In some aspects, the same decoded PBCH payload from the first PBCH communication may be used for re-encoding of a subsequent PBCH communication. For example, as shown by reference numeral 865, the network entity 810 may send a second PBCH communication. Instead of consuming time and processing resources to decode the second PBCH communication, the UE 820 may re-encode the decoded PBCH payload (from the first PBCH communication) to obtain a second pilot signal, as shown by reference numeral 870, for channel correction of subsequent data communications. Note that re-encoding the decoded PBCH payload for the second pilot signal may involve a frame number or scrambling change compared to the first PBCH communication. It is expected that the antenna point signal of the first pilot signal is different from the antenna point signal of the second pilot signal. The UE 820 may receive the second data communication and use a similar process as shown by reference numerals 850 and 855 to correct the channel for the second data communication based on the second pilot signal.

[0093] The PBCH payload is not expected to change frequently. However, the PBCH payload may change occasionally (e.g., every 100 PBCH communications). In some aspects, if there are enough changes in the PBCH communication signal, the second PBCH communication may be decoded to obtain a new decoded PBCH payload. For example, the UE 820 may decode the second PBCH communication based on the difference between the DMRS signal-to-noise ratio (SNR) and the PBCH SNR to obtain a new decoded PBCH payload. For example, if the difference (e.g., in dBm) meets a threshold (e.g., greater than 5 dB), the UE 820 may re-encode the decoded PBCH payload. If the difference does not meet the threshold (e.g., less than 5 dB), the UE 820 may not re-encode the decoded PBCH payload.

[0094] The PBCH payload may include two parts: dynamic bits (e.g., system frame number (SFN), half frame number, SSB identifier (ID)) and semi-static bits (the remaining bits). The dynamic bits may change from one SSB opportunity to another. However, the UE 820 may predict these bits at any desired SSB opportunity. Any other changes in these bits may occur at known modification boundaries and may be indicated by the network entity 810 through a short message. There is no reason to perform frequent PBCH decoding. That is, the UE 820 may be able to determine whether a change in PBCH communication is expected to result in decoding a new PBCH payload.

[0095] By re-encoding the PBCH payload as a pilot signal, channel estimation can be improved without requiring power consuming, frequent, broadband pilot signals. Thus, the network entity 810 and the UE 820 save power and signaling resources.

[0096] In some aspects, the UE 820 may use other communications to increase the frequency of pilot signals or add more training data for channel estimation. For example, the UE 820 may decode a data communication to obtain decoded first data, and the UE 820 may re-encode the data communication into a pilot signal for channel correction for subsequent data communications. This may involve data that is more consistently used as a pilot signal. In some aspects, the UE 820 may decode control information or control channel communications and use the decoded control information as a pilot signal for channel correction for subsequent communications. This may involve control information that is more consistently used as a pilot signal.

[0097] As indicated above, Figure 8 are provided as examples. Other examples can be found in the Figure 8 The content described is different.

[0098] Fig. 99 is a diagram illustrating an example process 900 performed, for example, by a UE according to the present disclosure. Example process 900 is an example in which a UE (eg, UE 120, UE 820) performs operations associated with channel correction using PBCH.

[0099] like Fig. 9 As shown, in some aspects, process 900 may include receiving a first PBCH communication on a channel (block 910). For example, a UE (e.g., using Fig.10 The communication manager 1008 and / or receiving component 1002 depicted in FIG. 1004 may receive a first PBCH communication on a channel, as described above.

[0100] like Fig. 9 As further shown in FIG. 9 , in some aspects, process 900 may include decoding the first PBCH communication into a decoded PBCH payload (block 920). For example, a UE (e.g., using Fig.10 The communication manager 1008 and / or decoding component 1010 depicted in FIG. 1004 may decode the first PBCH communication into a decoded PBCH payload, as described above.

[0101] like Fig. 9 As further shown in FIG. 9 , in some aspects, process 900 may include re-encoding the decoded PBCH payload into a first pilot signal (block 930). For example, a UE (e.g., using Fig.10 The communication manager 1008 and / or encoding component 1012 depicted in FIG. 1004 may re-encode the decoded PBCH payload into a first pilot signal, as described above.

[0102] like Fig. 9 As further shown in FIG. 9 , in some aspects, process 900 may include receiving a first data communication with first data (block 940). For example, a UE (e.g., using Fig.10 The communication manager 1008 and / or receiving component 1002 depicted in FIG. 1004 may receive a first data communication with first data, as described above.

[0103] like Fig. 9 As further shown in FIG. 9 , in some aspects, process 900 may include correcting a channel for a first data based on a first pilot signal (block 950). Fig.10 The communication manager 140 and / or the channel correction component 1014 depicted in FIG. 1 may correct the channel for the first data based on the first pilot signal, as described above.

[0104] like Fig. 9 As further shown in FIG. 9 , in some aspects, process 900 may include decoding the first data (block 960). For example, a UE (e.g., using Fig.10The communication manager 1008 and / or decoding component 1010 depicted in the example embodiment may decode the first data as described above.

[0105] Process 900 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.

[0106] In a first aspect, the first pilot signal is an expected antenna point signal, and correcting the channel for the first data includes: comparing the expected antenna point signal with a received antenna point signal of a first PBCH communication; obtaining an estimate of the channel based on a result of the comparison; and correcting the channel for the first data based on the estimate of the channel.

[0107] In a second aspect, alone or in combination with the first aspect, process 900 includes performing beam selection based at least in part on an estimate of a channel.

[0108] In a third aspect, alone or in combination with one or more of the first and second aspects, re-encoding the decoded PBCH payload comprises re-encoding the decoded PBCH payload based on a successful decoding of the first PBCH communication.

[0109] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 900 includes: receiving a second PBCH communication on a channel; re-encoding a decoded PBCH payload into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

[0110] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the second pilot signal is an expected antenna point signal, and correcting the channel for the second data includes: comparing the expected antenna point signal with a received antenna point signal of a second PBCH communication; obtaining an estimate of the channel based on a result of the comparison; and correcting the channel for the second data based on the estimate of the channel.

[0111] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 900 includes decoding the second PBCH communication to obtain a new decoded PBCH payload based on a difference between a DMRS SNR of the second PBCH communication and a PBCH SNR of the second PBCH communication satisfying a difference threshold.

[0112] In a seventh aspect, either alone or in combination with one or more of aspects 1 to 6, re-encoding the decoded PBCH payload comprises polarization encoding the decoded PBCH payload based at least in part on per-level instructions of a butterfly grid for polarization encoding.

[0113] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, process 900 comprises: receiving a second data communication with second data on a channel; correcting the channel for the second data based on a first pilot signal; and decoding the second data.

[0114] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, decoding the first data includes decoding the first data to obtain decoded first data, and process 900 includes: re-encoding the decoded first data into a second pilot signal; receiving a second data communication with the second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

[0115] In a tenth aspect, alone or in combination with one or more of aspects one to nine, process 900 comprises: receiving a first control communication with control information on a channel; decoding the control information to obtain decoded control information; re-encoding the decoded control information into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

[0116] although Fig. 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include Fig. 9 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 900. Additionally or alternatively, two or more of the blocks in the process 900 may be performed in parallel.

[0117] Fig.10is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a UE (e.g., UE 120, UE 820), or a UE may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and transmitting component 1004. As further shown, apparatus 1000 may include a communication manager 1008. Communication manager 1008 may control and / or otherwise manage one or more operations of receiving component 1002 and / or transmitting component 1004. In some aspects, communication manager 1008 may include a communication manager 1008 in conjunction with Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the UE. The communication manager 1008 may be or be similar to Figure 1 and Figure 2 For example, in some aspects, the communication manager 1008 may be configured to perform one or more of the functions described as being performed by the communication manager 140. In some aspects, the communication manager 1008 may include a receiving component 1002 and / or a sending component 1004. The communication manager 1008 may include one or more of a decoding component 1010, an encoding component 1012, and / or a channel correction component 1014, among others.

[0118] In some aspects, the apparatus 1000 may be configured to perform Figures 1 to 8 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Fig. 9 The process 900. In some aspects, Fig.10 The device 1000 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.10 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.

[0119] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1006. The receiving component 1002 may provide the received communications to one or more other components of the device 1000. In some aspects, the receiving component 1002 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 1000. In some aspects, the receiving component 1002 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the UE.

[0120] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1006. In some aspects, one or more other components of the device 1000 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the device 1006. In some aspects, the transmitting component 1004 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 1006. In some aspects, the transmitting component 1004 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 1004 can be co-located with the receive component 1002 in a transceiver.

[0121] The receiving component 1002 can receive a first PBCH communication on a channel. The decoding component 1010 can decode the first PBCH communication into a decoded PBCH payload. The encoding component 1012 can re-encode the decoded PBCH payload into a first pilot signal. The receiving component 1002 can receive a first data communication with first data. The channel correction component 1014 can correct the channel for the first data based on the first pilot signal. The decoding component 1010 can decode the first data.

[0122] Channel correction component 1014 can perform beam selection or RSRP estimation based at least in part on the estimate of the channel. Receiving component 1002 can receive a second PBCH communication on the channel. Encoding component 1012 can re-encode the decoded PBCH payload into a second pilot signal.

[0123] Receiving component 1002 can receive a second data communication with second data on the channel. Channel correction component 1014 can correct the channel for the second data based on the second pilot signal. Decoding component 1010 can decode the second data.

[0124] The decoding component 1010 can decode the second PBCH communication to obtain a new decoded PBCH payload based on a difference between the DMRS SNR of the second PBCH communication and the PBCH SNR of the second PBCH communication satisfying a difference threshold.

[0125] Receiving component 1002 can receive a second data communication with second data on the channel. Channel correction component 1014 can correct the channel for the second data based on the first pilot signal. Decoding component 1010 can decode the second data.

[0126] The receiving component 1002 can receive a first control communication with control information on a channel. The decoding component 1010 can decode the control information to obtain decoded control information. The receiving component 1002 can receive a second data communication with second data on the channel. The channel correction component 1014 can correct the channel for the second data based on the second pilot signal. The decoding component 1010 can decode the second data.

[0127] Fig.10 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.10 Two or more components shown may be implemented in a single component, or Fig.10 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 The illustrated set of component(s) may be described as being executable by Fig.10 Another collection of components shown performs one or more functions.

[0128] The following provides an overview of some aspects of the disclosure:

[0129] Aspect 1: A method of wireless communication performed by a device of a user equipment (uE), the method comprising: receiving a first physical broadcast channel (PBCH) communication on a channel; decoding the first PBCH communication into a decoded PBCH payload; re-encoding the decoded PBCH payload into a first pilot signal; receiving a first data communication with first data; correcting the channel for the first data based on the first pilot signal; and decoding the first data.

[0130] Aspect 2: A method according to Aspect 1, wherein the first pilot signal is an expected antenna point signal, and wherein correcting the channel for the first data includes: comparing the expected antenna point signal with the received antenna point signal of the first PBCH communication; obtaining an estimate of the channel based on a result of the comparison; and correcting the channel for the first data based on the estimate of the channel.

[0131] Aspect 3: The method according to aspect 2 further comprises: performing beam selection based at least in part on the estimate of the channel.

[0132] Aspect 4: The method according to any one of aspects 1 to 3, wherein re-encoding the decoded PBCH payload comprises: re-encoding the decoded PBCH payload based on the decoding success of the first PBCH communication.

[0133] Aspect 5: The method according to any one of Aspects 1 to 4, the method further comprising: receiving a second PBCH communication on the channel; re-encoding the decoded PBCH payload into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

[0134] Aspect 6: A method according to Aspect 5, wherein the second pilot signal is an expected antenna point signal, and wherein correcting the channel for the second data includes: comparing the expected antenna point signal with the received antenna point signal of the second PBCH communication; obtaining an estimate of the channel based on a result of the comparison; and correcting the channel for the second data based on the estimate of the channel.

[0135] Aspect 7: According to the method described in any one of Aspects 1 to 6, the method also includes: decoding the second PBCH communication to obtain a new decoded PBCH payload based on the difference between the demodulation reference signal signal-to-noise ratio (SNR) of the second PBCH communication and the PBCH SNR of the second PBCH communication satisfying a difference threshold.

[0136] Aspect 8: A method according to any one of Aspects 1 to 7, wherein re-encoding the decoded PBCH payload comprises: performing polarization encoding on the decoded PBCH payload based at least in part on a per-level instruction of a butterfly grid for polarization encoding.

[0137] Aspect 9: The method according to any one of aspects 1 to 8, the method further comprising: receiving a second data communication with second data on the channel; correcting the channel for the second data based on the first pilot signal; and decoding the second data.

[0138] Aspect 10: A method according to any one of Aspects 1 to 9, wherein decoding the first data includes decoding the first data to obtain decoded first data, and wherein the method further includes: re-encoding the decoded first data into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

[0139] Aspect 11: The method according to any one of Aspects 1 to 10, the method further comprising: receiving a first control communication with control information on the channel; decoding the control information to obtain decoded control information; re-encoding the decoded control information into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

[0140] Aspect 12: An apparatus for performing wireless communication 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 a method according to one or more of Aspects 1 to 11.

[0141] Aspect 13: A device for wireless communication, the device comprising a memory and one or more processors, the one or more processors being coupled to the memory, the one or more processors being configured to execute the method according to one or more of aspects 1 to 11.

[0142] Aspect 14: 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 11.

[0143] Aspect 15: 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 11.

[0144] Aspect 16: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of a device, causes the device to perform the method according to one or more aspects of aspects 1 to 11.

[0145] 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.

[0146] 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 as meaning 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, processes and / or functions, etc. As used herein, "processors" are 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 by 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 various 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.

[0147] 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.

[0148] 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).

[0149] Any element, action or instruction used herein should not be interpreted as critical or necessary unless clearly 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 one item, the phrase "only one" or similar terms will be used. Moreover, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "an element having" A may 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 method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving a first physical broadcast channel (PBCH) communication on a channel; decoding the first PBCH communication into a decoded PBCH payload; re-encoding the decoded PBCH payload into a first pilot signal; receiving a first data communication with first data; correcting the channel for the first data based on the first pilot signal; and decoding the first data.

2. The method of claim 1 , wherein the first pilot signal is an expected antenna point signal, and wherein correcting the channel for the first data comprises: comparing the expected antenna point signal with a received antenna point signal of the first PBCH communication; obtaining an estimate of the channel based on a result of the comparing; as well as The channel is corrected for the first data based on the estimate of the channel.

3. The method according to claim 2, further comprising: Beam selection is performed based at least in part on the estimate of the channel.

4. The method of claim 1 , wherein re-encoding the decoded PBCH payload comprises: The decoded PBCH payload is re-encoded based on the decoding success of the first PBCH communication.

5. The method according to claim 1, further comprising: receiving a second PBCH communication on the channel; re-encoding the decoded PBCH payload into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

6. The method of claim 5, wherein the second pilot signal is an expected antenna point signal, and wherein correcting the channel for the second data comprises: comparing the expected antenna point signal with a received antenna point signal for the second PBCH communication; obtaining an estimate of the channel based on a result of the comparing; as well as The channel is corrected for the second data based on the estimate of the channel.

7. The method according to claim 1, further comprising: The second PBCH communication is decoded to obtain a new decoded PBCH payload based on a difference between a demodulation reference signal signal-to-noise ratio (SNR) of the second PBCH communication and a PBCHSNR of the second PBCH communication satisfying a difference threshold.

8. The method of claim 1, wherein re-encoding the decoded PBCH payload comprises: The decoded PBCH payload is polar-encoded based at least in part on per-stage instructions of a butterfly trellis for polar-coding.

9. The method according to claim 1, further comprising: receiving a second data communication with second data on the channel; correcting the channel for the second data based on the first pilot signal; and decoding the second data.

10. The method of claim 1, wherein decoding the first data comprises decoding the first data to obtain decoded first data, and wherein the method further comprises: re-encoding the decoded first data into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

11. The method according to claim 1, further comprising: receiving a first control communication with control information on the channel; decoding the control information to obtain decoded control information; re-encoding the decoded control information into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

12. An apparatus for user equipment (UE) for wireless communication, the apparatus comprising: Memory; and One or more processors, the one or more processors being coupled to the memory, the memory comprising instructions executable by the one or more processors to cause the UE to: receiving a first physical broadcast channel (PBCH) communication on a channel; decoding the first PBCH communication into a decoded PBCH payload; re-encoding the decoded PBCH payload into a first pilot signal; receiving a first data communication with first data; correcting the channel for the first data based on the first pilot signal; as well as The first data is decoded.

13. The apparatus of claim 12, wherein the first pilot signal is an expected antenna point signal, and wherein when correcting the channel for the first data, the instructions are further executable by the one or more processors to cause the UE to: comparing the expected antenna point signal with a received antenna point signal of the first PBCH communication; obtaining an estimate of the channel based on a result of the comparing; and The channel is corrected for the first data based on the estimate of the channel.

14. The apparatus of claim 13, wherein the memory further comprises instructions executable by the one or more processors to cause the UE to perform reference signal received power estimation based at least in part on the estimate of the channel.

15. The apparatus of claim 12, wherein when re-encoding the decoded PBCH payload, the instructions are further executable by the one or more processors to cause the UE to re-encode the decoded PBCH payload based on the decoding success of the first PBCH communication.

16. The apparatus of claim 12, wherein the memory further comprises instructions executable by the one or more processors to cause the UE to: receiving a second PBCH communication on the channel; re-encoding the decoded PBCH payload into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

17. The apparatus of claim 16, wherein the second pilot signal is an expected antenna point signal, and wherein when correcting the channel for the second data, the instructions are further executable by the one or more processors to cause the UE to: comparing the expected antenna point signal with a received antenna point signal for the second PBCH communication; obtaining an estimate of the channel based on a result of the comparing; and The channel is corrected for the second data based on the estimate of the channel.

18. The apparatus according to claim 12, the memory further comprising instructions executable by the one or more processors to enable the UE to perform the following operations: decoding the second PBCH communication to obtain a new decoded PBCH payload based on a difference between a demodulation reference signal signal-to-noise ratio (SNR) of the second PBCH communication and a PBCHSNR of the second PBCH communication satisfying a difference threshold.

19. The apparatus of claim 12, wherein when re-encoding the first PBCH communication, the instructions are further executable by the one or more processors to polar-encode the decoded PBCH payload based at least in part on per-stage instructions of a butterfly trellis for polar-encoding.

20. The apparatus of claim 12, wherein the memory further comprises instructions executable by the one or more processors to cause the UE to: receiving a second data communication with second data on the channel; correcting the channel for the second data based on the first pilot signal; and decoding the second data.

21. The apparatus of claim 12, wherein when decoding the first data, the instructions are further executable by the one or more processors to decode the first data to obtain decoded first data, and wherein the memory further comprises instructions executable by the one or more processors to cause the UE to: re-encoding the decoded first data into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

22. The apparatus of claim 12, wherein the memory further comprises instructions executable by the one or more processors to cause the UE to: receiving a first control communication with control information on the channel; decoding the control information to obtain decoded control information; re-encoding the decoded control information into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

23. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions, when executed by one or more processors of a user equipment (UE), causes the UE to: receiving a first physical broadcast channel (PBCH) communication on a channel; decoding the first PBCH communication into a decoded PBCH payload; re-encoding the decoded PBCH payload into a first pilot signal; receiving a first data communication with first data; correcting the channel for the first data based on the first pilot signal; and decoding the first data.

24. The non-transitory computer-readable medium of claim 23, wherein the first pilot signal is an expected antenna point signal, and wherein in correcting the channel for the first data, the one or more instructions further cause the UE to: comparing the expected antenna point signal with a received antenna point signal of the first PBCH communication; obtaining an estimate of the channel based on a result of the comparing; and The channel is corrected for the first data based on the estimate of the channel.

25. The non-transitory computer readable medium of claim 23, wherein the one or more instructions further cause the UE to: receiving a second PBCH communication on the channel; re-encoding the decoded PBCH payload into a second pilot signal; receiving a second data communication with second data on the channel; correcting the channel for the second data based on the second pilot signal; and decoding the second data.

26. The non-transitory computer-readable medium of claim 23, wherein the one or more instructions further cause the UE to: receiving a second data communication with second data on the channel; correcting the channel for the second data based on the first pilot signal; and decoding the second data.

27. An apparatus for wireless communication, the apparatus comprising: means for receiving a first physical broadcast channel (PBCH) communication on a channel; means for decoding said first PBCH communication into a decoded PBCH payload; means for re-encoding the decoded PBCH payload into a first pilot signal; means for receiving a first data communication having first data; means for correcting the channel for the first data based on the first pilot signal; and Means for decoding said first data.

28. The apparatus of claim 27, wherein the first pilot signal is an expected antenna point signal, and wherein the means for correcting the channel for the first data comprises: means for comparing the expected antenna point signal with a received antenna point signal for the first PBCH communication; means for obtaining an estimate of said channel based on a result of said comparing; and Means for correcting the channel for the first data based on the estimate of the channel.

29. The apparatus according to claim 27, further comprising: means for receiving a second PBCH communication on said channel; means for re-encoding the decoded PBCH payload into a second pilot signal; means for receiving a second data communication with second data on said channel; means for correcting the channel for the second data based on the second pilot signal; and Means for decoding said second data.

30. The apparatus of claim 27, further comprising: means for receiving a second data communication with second data on said channel; means for correcting the channel for the second data based on the first pilot signal; and Means for decoding said second data.

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