Data signaling with superimposed pilots
By using superimposed pilot technology in wireless communications, the challenges of spectrum efficiency and resource management in dense MU-MIMO systems are solved, achieving higher spectrum efficiency and throughput.
Patent Information
- Application Number
- CN202380064930.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-15
- Filing Date
- 2023-09-13
- Publication Date
- 2025-04-18
AI Technical Summary
Existing wireless communication technologies have challenges in spectrum efficiency and resource management, especially in dense multi-user multi-input multiple output (MU-MIMO) systems, it is difficult to effectively utilize spectrum resources and optimize the total throughput.
Using superimposed pilot technology, superimposed pilots in data signaling. Through this method, the resource is shared with data signaling on time, frequency and decoding resources to realize channel estimation and data decoding.
Improves spectrum efficiency and resource management capabilities, reduces the need for orthogonal pilot resources, supports higher throughput and spectrum utilization efficiency, and reduces receiver complexity.
Smart Images

Figure CN119856454A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. non-provisional patent application No. 17 / 932,558, entitled “DATA SIGNALING WITH SUPERIMPOSED PILOTS,” filed on September 15, 2022, which is hereby expressly incorporated herein by reference. Technical Field
[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for data signaling with superimposed pilots. 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 performing wireless communications by a user equipment (UE). The method may include receiving a communication including data signaling and a superimposed pilot, the superimposed pilot being superimposed on the data signaling sent via one or more communication resources of the communication. The method may include decoding the data signaling from the communication. The method may include measuring one or more channels of one or more beams based at least in part on the superimposed pilot.
[0008] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending an indication that the communication includes a superimposed pilot. The method may include sending a communication including data signaling and a superimposed pilot, the superimposed pilot being superimposed on the data signaling sent via one or more communication resources of the communication.
[0009] Some aspects described herein relate to a UE for wireless communication. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a communication including data signaling and a superimposed pilot, the superimposed pilot being superimposed on the data signaling sent via one or more communication resources of the communication. The one or more processors may be configured to decode the data signaling from the communication. The one or more processors may be configured to measure one or more channels of one or more beams based at least in part on the superimposed pilot.
[0010] Some aspects described herein relate to a network node for wireless communication. The network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send an indication that the communication includes a superimposed pilot. The one or more processors may be configured to send a communication including data signaling and a superimposed pilot, the superimposed pilot being superimposed on the data signaling sent via one or more communication resources of the communication.
[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may enable the UE to receive a communication including data signaling and a superimposed pilot, the superimposed pilot being superimposed on the data signaling sent via one or more communication resources of the communication. The instruction set, when executed by one or more processors of the UE, may enable the UE to decode the data signaling from the communication. The instruction set, when executed by one or more processors of the UE, may enable the UE to measure one or more channels of one or more beams based at least in part on the superimposed pilot.
[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send an indication that the communication includes a superimposed pilot. The instruction set, when executed by one or more processors of the network node, may cause the network node to send a communication including data signaling and a superimposed pilot, the superimposed pilot being superimposed on the data signaling sent via one or more communication resources of the communication.
[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a communication including data signaling and a superimposed pilot superimposed on the data signaling sent via one or more communication resources of the communication. The apparatus may include means for decoding the data signaling from the communication. The apparatus may include means for measuring one or more channels of one or more beams based at least in part on the superimposed pilot.
[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending an indication that a communication includes a superimposed pilot. The apparatus may include means for sending a communication including data signaling and a superimposed pilot superimposed on the data signaling sent via one or more communication resources of the communication.
[0015] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having a sequence of balancing within a codeword. The method may include receiving the balanced code communication from a network node, receiving the balanced code communication including decoding the codeword of the balanced code communication and estimating one or more parameters of communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0016] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having a sequence of balancing within a codeword. The method may include sending the balanced code communication from the network node, the sending the balanced code communication including encoding a codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0017] Some aspects described herein relate to a user equipment UE for wireless communication. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword. The one or more processors may be configured to receive balanced code communication from a network node, receiving balanced code communication includes decoding a codeword of the balanced code communication and estimating one or more parameters for communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0018] Some aspects described herein relate to a network node for wireless communication. The network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword. The one or more processors may be configured to send balanced code communication to a user equipment UE, sending the balanced code communication includes encoding a codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as an attribute of the balanced code communication.
[0019] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a user equipment UE. The instruction set, when executed by one or more processors of the UE, can cause the UE to receive an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword. The instruction set, when executed by one or more processors of the UE, can cause the UE to receive balanced code communication from a network node, receiving balanced code communication includes decoding a codeword of the balanced code communication and estimating one or more parameters for communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0020] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having a balanced sequence within a codeword. The instruction set, when executed by one or more processors of the network node, may cause the network node to send the balanced code communication to a UE, the sending of the balanced code communication including encoding a codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as an attribute of the balanced code communication.
[0021] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having a sequence of balancing within a codeword. The apparatus may include means for receiving the balanced code communication from a network node, receiving the balanced code communication includes decoding the codeword of the balanced code communication and estimating one or more parameters for communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0022] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having a sequence of balancing within a codeword. The apparatus may include means for sending the balanced code communication to a user equipment (UE), the sending the balanced code communication including encoding a codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0023] Aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.
[0024] The features and technical advantages of the 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 the limitations of the claims.
[0025] 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
[0026] 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.
[0027] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0028] 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.
[0029] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.
[0030] Figure 4 is a diagram illustrating an example of pilots within time and frequency resources of a communication link according to the present disclosure.
[0031] Figure 5 is a diagram of an example associated with data signaling with superimposed pilots according to the present disclosure.
[0032] Figure 6 is a diagram of an example associated with data signaling with superimposed pilots according to the present disclosure.
[0033] Figure 7 is a diagram of an example associated with data signaling with superimposed pilots according to the present disclosure.
[0034] Figure 8 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0035] Fig. 9 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.
[0036] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0037] Fig.11 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0038] Fig.12 is a diagram of an example associated with a balanced coding scheme according to the present disclosure.
[0039] Fig.13 An example trellis diagram that may be used in a balanced code decoding scheme according to the present disclosure is shown.
[0040] Fig.14 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0041] Fig.15 is a diagram illustrating an example process performed, for example, by a base station according to the present disclosure. DETAILED DESCRIPTION
[0042] 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 interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the present disclosure will be fully conveyed to those skilled in the art. It should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present 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, functionality, or structures and functionality other than the various aspects of the disclosure set forth herein or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present claim.
[0043] 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.
[0044] 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 5G and beyond (e.g., 6G) RATs.
[0045] Figure 11 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), one 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, meaning that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), meaning 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).
[0046] In some examples, the network node 110 is or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. 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.
[0047] 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, 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. The network node may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographic area of the cells may move according to the location of the mobile network node 110 (e.g., a mobile network node).
[0048] In some aspects, the term "base station" or "network node" may refer to an aggregated 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 multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a plurality 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 execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.
[0049] 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, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communications between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.
[0050] 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).
[0051] 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.
[0052] UE 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may 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.
[0053] 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 in a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0054] 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.
[0055] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network node 110 as an intermediary) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.
[0056] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., according to 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 ranges designated FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that although portions of FR1 are greater than 6 GHz, FR1 is often (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. A similar naming problem sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).
[0057] The 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, and therefore the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, currently higher frequency bands are being explored to extend 5G NR operation to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designation 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.
[0058] Considering the above examples, unless otherwise explicitly 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. In addition, unless otherwise explicitly 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.
[0059] In some aspects, the UE 120 may include a communications manager 140. As described in more detail elsewhere herein, the communications manager 140 may receive communications including data signaling and superimposed pilots superimposed on data signaling sent via one or more communications resources of the communications; decode the data signaling from the communications; and measure one or more channels of one or more beams based at least in part on the superimposed pilots. As described in more detail elsewhere herein, the communications manager 140 may receive an indication of a configuration for balanced code communications, the configuration indicating parameters of a signal of balanced code communications having balanced sequences within codewords; and receive balanced code communications from a network node, receiving the balanced code communications including decoding codewords of the balanced code communications and estimating one or more parameters of communications with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communications. Additionally or alternatively, the communications manager 140 may perform one or more other operations described herein.
[0060] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword; and send balanced code communication from the network node, the sending balanced code communication comprising encoding a codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication. As described in more detail elsewhere herein, the communication manager 150 may send an indication that the communication includes superimposed pilots; and send a communication including data signaling and superimposed pilots, the superimposed pilots being superimposed on the data signaling sent via one or more communication resources of the communication. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0061] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.
[0062] 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.
[0063] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, 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 further 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).
[0064] 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 a housing.
[0065] 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.
[0066] 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 coupled to one or more transmit and / or receive components (such as antennas). Figure 2 One or more antenna elements of one or more components in.
[0067] 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 aspects of any of the methods described herein (eg, with reference to Figures 5 to 15 ).
[0068] 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 aspects of any of the methods described herein (e.g., reference 20 to FIG. 1 ). Figures 5 to 15 ).
[0069] 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 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 Figure 8 The process of 800 Fig. 9 The process of 900 Fig.14 The process of 1400 Fig.15 1500 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 that stores one or more instructions (e.g., code and / or program code) for wireless communication. For example, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly, or after compilation, conversion, and / or interpretation), the one or more instructions may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 8 The process of 800 Fig. 9 The process of 900 Fig.14 The process of 1400 Fig.15 The process 1500 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.
[0070] In some aspects, the UE includes components for receiving communications including data signaling and superimposed pilots that are superimposed on data signaling sent via one or more communication resources of the communication (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, or memory 282); components for decoding data signaling from the communication (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, etc.); and / or components for measuring one or more channels of one or more beams based at least in part on the superimposed pilots (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, memory 282, etc.). In some aspects, the UE includes means for receiving an indication of a configuration for balanced code communications, the configuration indicating parameters of a signal of balanced code communications having a balanced sequence within a codeword (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, or memory 282); and / or means for receiving balanced code communications from a network node, receiving balanced code communications including decoding codewords of the balanced code communications and estimating one or more parameters of communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communications (e.g., using antenna 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, or memory 282). Means for the UE to perform operations described herein may include, for example, one or more of the following: communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0071] In some aspects, the network node includes means for sending an indication that the communication includes a superimposed pilot (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the memory 242, etc.); and / or means for sending a communication including data signaling and a superimposed pilot, which is superimposed on the data signaling sent via one or more communication resources of the communication (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, or the memory 242). In some aspects, the network node includes means for sending an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the memory 242, etc.); and / or means for sending balanced code communication from the network node, sending the balanced code communication includes encoding the codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the memory 242, etc.). In some aspects, components for a network node to perform operations described herein may include, for example, one or more of the following: a communication manager 150, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.
[0072] Although Figure 2 The blocks in the 200 and 210 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.
[0073] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.
[0074] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also called 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).
[0075] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack 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 physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.
[0076] 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 independently. 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 the decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.
[0077] 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.
[0078] Each of these units (including CU 310, DU 330, RU 340) and near-RT RIC 325, non-RTRIC 315 and SMO framework 305) may include or be coupled to one or more interfaces, which are configured to receive or send signals, data or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of these 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 the transmission medium. In some examples, each of these units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, and the wireless interface may include a receiver, a transmitter or a transceiver (such as an RF transceiver), which is configured to receive signals or send signals to one or more of the other units via a wireless transmission medium, or both.
[0079] In some aspects, the 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 configured to communicate signals with other control functions hosted by the CU 310. The 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, the CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU 310 may be implemented to communicate with the DU 330 for network control and signaling.
[0080] 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 split (such as a functional split 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.
[0081] 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 (such as performing FFT, performing iFFT, digital beamforming or PRACH extraction and filtering, etc.) based on functional splitting (e.g., functional splitting defined by 3GPP) (such as lower layer functional splitting). In such an 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 communicating with the control plane and user plane of 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.
[0082] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 335) 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.
[0083] 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 communicate 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.
[0084] 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).
[0085] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.
[0086] Figure 4 4 is a diagram illustrating an example 400 of pilots within time and frequency resources of a communication link according to the present disclosure. In some networks, a network node may send downlink communications on a physical downlink shared channel (PDSCH) along with data and DMRS used to estimate a channel of the PDSCH. The UE may use the DMRS to improve reception (e.g., demodulation and / or decoding) of data sent within the PDSCH.
[0087] like Figure 4As shown, in addition to the DMRS, the network node may also send other pilots for measurement by other UEs or by the UE. For example, as part of a beam management operation, a beam selection operation, a beam refinement operation, a handover operation, etc., the network node may send other pilots for measurement. The network node may send other pilots on the same beam as the data (e.g., an active beam). Figure 4 As shown, the additional pilots may consume network resources that would otherwise have been allocated for data communications.
[0088] like Figure 4 As shown, the communication may include physical downlink control channel (PDCCH) symbols (e.g., symbols 0 and 1) associated with the PDSCH. In addition to the PDCCH symbols, DMRS (e.g., 1-4 symbols of DMRS) and other pilots may consume a large portion of the resources of the communication. This may result in inefficient communication of data, where, for example, approximately 40% or more of the resources of the communication cannot carry data because they are used to carry other signaling.
[0089] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.
[0090] Some networks use massive multi-user MIMO (MU-MIMO) to improve spectral efficiency, such as dense MU-MIMO. Dense MU-MIMO systems can use a relatively large number of Tx antennas to form a correspondingly large number of beams, which can enable multiplexing of a larger number of users and improve spectrum utilization in the spatial domain. However, for dense MU-MIMO, determining the network node precoding matrix to optimize the overall throughput and minimize inter-user interference can be challenging.
[0091] For precoding adaptation, the channels from a larger number of transmit antennas to all UEs should be estimated and reported. However, transmitting orthogonal reference signals from a larger number of ports (e.g., beams) will reduce the total bandwidth available for data (e.g., as in Figure 4 Using non-orthogonal pilots (e.g., in a MU-MIMO configuration) may result in pilot contamination, which reduces the effectiveness of the pilots in improving communication with the UE. Efficient allocation of reference signal resources may be important for dense MU-MIMO to ensure that sufficient resources are available to carry data.
[0092] In some networks, the channel from a network node to the i-th UE may be designated as having R i The matrix H of the receiving antenna elements and T transmitting antenna elements i The pre-decoded channel to the i-th UE will be H i Pi . Pre-decoding matrix P i It may be desirable to optimize the signal-to-noise ratio (SNR) for the i-th UE and minimize interference to other UEs. The metric for the precoding matrix may be This leads to P i yes →The main eigenvector of which needs to be obtained The pre-decoding matrix is calculated based on the knowledge of
[0093] DMRS is an estimate of H i However, since they are pre-decoded, they provide information about H i (non-precoded channels). In order to obtain additional information, more transmit ports may need to be transmitted as reference signals. If reciprocity is assumed, this can be achieved through channel state information reference signal (CSI-RS), extended DMRS, CRS and / or sounding reference signal (SRS). However, all these reference signals reduce the available bandwidth for data because they are multiplexed with the data (in time and frequency).
[0094] In some aspects described herein, a network node may send a communication including data signaling and a superimposed pilot, wherein the superimposed pilot is superimposed on the data signaling sent via one or more communication resources of the communication. In some aspects, the communication may include an orthogonal DMRS (e.g., having orthogonality with the data signaling) for channel estimation and / or data demodulation.
[0095] The superimposed pilot may include an estimated CSI-RS, CRS, and / or extended DMRS for a downlink pre-decoder. The CSI-RS, CRS, and / or extended DMRS may have a waveform different from that of the orthogonal pilot. For example, in the absence of a conventional waveform for an orthogonal pilot, the superimposed pilot may serve as a CSI-RS, CRS, and / or extended DMRS. In some aspects, the UE and / or other UEs may use the superimposed pilot to perform one or more operations, such as beam management, beam selection, beam refinement, or mobility operations.
[0096] In some aspects, the superposition pilot ports (e.g., ports associated with beams) may be orthogonal between them. For example, the superposition pilot ports may be orthogonal to each other based at least in part on multiplexing in frequency, time, and / or code. In this way, only orthogonality to data signaling may be lost. This configuration may avoid pilot contamination and allow an efficient receiver to separate data from superposition pilots.
[0097] and Figure 4In contrast to the example of , the superimposed pilot is not orthogonal to the data signaling. For example, the superimposed pilot may share time and frequency resources and / or coding resources (e.g., orthogonal cover code (OCC) resources) with the data signaling. The superimposed pilot may be added on top of the data symbol and may share transmit power resources (e.g., transmit power may be split between the superimposed pilot and the data signaling). Orthogonality is not achieved, which may require increased complexity of the receiver (e.g., at the UE).
[0098] In an example network, the capacity per resource element of the multiplexed pilot can be compared with the capacity per resource element of the superimposed pilot configuration. The capacity per resource element per time slot can be estimated as N*log 2 (1+SNR), where N is the number of available data symbols (e.g., PDSCH) in a time slot. In this example, assume N=12. The number of ports (e.g., beams, virtual ports, digital ports, etc.) that can be multiplexed in frequency depends on the channel coherence bandwidth. For example, a communication has 12 channel ports assumed to be multiplexed in frequency, which can represent a typical network with a CSI-RS density of 1 resource element per resource block.
[0099] For multiplexed pilot configurations, multiple pilot ports come at the expense of time and frequency resources. To accommodate pilots, set N = 12-ports / 12, which corresponds to an estimate of throughput.
[0100] For superimposed pilots, no resource is dedicated only to superimposed pilots. Instead, a portion of the signal power of each resource element is used for superimposed pilots. Maintaining the same power as the multiplexing configuration, spreading the pilots over 12 symbols requires 1 / 12 of the symbol power. The throughput is achieved by To estimate, 144 comes from multiplexing 12 ports in frequency and splitting the power over 12 symbols in time.
[0101] Both configurations (multiplexed pilot and superposition pilot) can provide the same throughput in the following two cases: there are no pilot ports and all resources are used for data, and there are 144 pilot ports, where all frequency and time resources are used for channel estimation in the multiplexed pilot configuration case, and all power is used for superposition pilots in the superposition configuration. In all intermediate cases 0<port<144, superposition pilot can outperform the multiplexing configuration.
[0102] The above examples illustrate the comparison between superimposed pilots and multiplexed pilots by maintaining the same pilot energy. However, the superimposed pilot configuration also presents greater flexibility to assign arbitrary pilot to data power ratios and / or employ superimposed pilot schemes for frequency and / or time selectivity of the channel and for the estimation quality required for efficient communication.
[0103] The receiving device (e.g., UE) may need to separate the superimposed pilot from the data signaling to decode the signaling. This can be done by an iterative elimination algorithm that jointly estimates the channel port (e.g., superimposed pilot) and the data. For example, the receiving device can iteratively use minimum mean square error (MMSE) estimation for the data signaling and the superimposed pilot.
[0104] In an example, the received signal (eg, measurement samples) may be Where x is data signaling and the superimposed pilot is h i , H D is a (R*RE)x(L*RE) block diagonal matrix, where R is the number of receive antennas, L is the number of layers, B and F are basis functions that describe the channel variations in time and frequency, respectively, and h i is the (unknown) ith channel basis function for the ith superimposed pilot port, I R*R is the identity matrix of R*R, and is the Kronecker product.
[0105] The receiving device can estimate the data based on the received signaling. For example, the receiving device can perform MMSE data estimation on a time and frequency segment (e.g., 12 resource elements in frequency and 12 symbols in time). The noise Rnn includes superimposed pilots and thermal noise, assuming as well as Make The receiving device can be based on the Euclidean distance To assign the probability of each constellation point, where p c is the probability of constellation point c, is the MMSE output, and x c It is constellation point c.
[0106] The receiving device can calculate the average and variance The average value is used to eliminate, where This variance is used for Rnn calculation in the superimposed pilot estimation stage.
[0107] After estimating the data from the received signaling, the receiving device can estimate the superimposed pilot. For example, the UE can perform MMSE superimposed pilot estimation, where And the diagonal matrix Based on the mean and variance estimated from the data, the receiving device can remove the superimposed pilot from the received samples, where
[0108] The receiving device can use the signal with the superimposed pilot removed to estimate the data again. After re-estimating the data, the receiving device can estimate the superimposed pilot again. In this way, the receiving device can iteratively refine the estimate until the data signaling is sufficiently refined for decoding.
[0109] In some aspects, the UE may report the capability to support the superposition pilot. In some aspects, the network node may use the superposition pilot only if the UE has reported the capability to support the superposition pilot. The capability may be partial support, such as supporting restrictions on the number of superposition ports and / or the type of superposition pilot (e.g., superposition with time (using, for example, time division duplex (TDD)), frequency (using, for example, frequency division duplex (FDD)), and / or coding), etc.
[0110] In some aspects, the UE may indicate support for one or more parameters for superimposed pilots, and / or the network node may indicate a configuration indicating the one or more parameters. For example, the UE and / or the network node may indicate a pilot table associated with a parameter (e.g., similar to a CSI-RS configuration), the parameter including the number of ports for superimposed pilots, the symbol span for superimposed pilots, the number of resource blocks for superimposed pilots, the type of superimposed pilot port multiplexing (e.g., frequency domain multiplexing, time domain multiplexing, code division multiplexing, or a hybrid scheme), and / or the relative allocation power of superimposed pilots to data power (e.g., calculated as Rnn at the auxiliary receiver), etc.
[0111] In some aspects, the network node may send a downlink control information (DCI) message to indicate the presence of superimposed pilots and the pilot type of the superimposed pilots. Additionally or alternatively, several options for superimposed pilot multiplexing may be signaled via RRC signaling, and a dynamic selection of the current type may be signaled in the DCI.
[0112] Based at least in part on the use of superimposed pilots, the network can save network resources that might have been used to convey orthogonal pilots for data. In this way, the network can support additional pilots, higher throughput for the same number of pilots, and / or higher spectral efficiency.
[0113] Figure 5 is a diagram of an example 500 associated with data signaling with superimposed pilots according to the present disclosure. Figure 5 As shown, a network node (e.g., network node 110, CU, DU, and / or RU) may communicate with a UE (e.g., UE 120). In some aspects, the network node and the UE may be part of a wireless network (e.g., wireless network 100). The UE and the network node may be in a Figure 5 The illustrated operations are preceded by establishing a wireless connection. In some aspects, the network may support MU-MIMO and / or dense MU-MIMO.
[0114] As indicated by reference numeral 505, the network node may send configuration information, and the UE may receive the configuration information. In some aspects, the UE may receive the configuration information via one or more of RRC signaling, one or more medium access control (MAC) control elements (CEs), and / or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for the UE to select (e.g., known to the UE and / or previously indicated by the network node or other network device) and / or explicit configuration information for the UE to configure the UE, etc.
[0115] In some aspects, the configuration information may indicate that the UE will send an indication of support for receiving communications including data signaling and superimposed pilots. In some aspects, the configuration information may indicate that the UE will send an indication of support for one or more parameters configured for superimposed pilots.
[0116] The UE may configure itself based at least in part on the configuration information.In some aspects, the UE may be configured to perform one or more operations described herein based at least in part on the configuration information.
[0117] As shown by reference numeral 510, the UE may send an indication of support for receiving communications including data signaling and superimposed pilots, and the network node may receive the indication (e.g., within a capability report). In some aspects, the indication of support may identify a set of parameters for superimposed pilots that the UE supports. In some aspects, the UE may indicate the parameters individually. In some aspects, the UE may indicate the set of parameters (e.g., using an indicator mapped to the set of parameters).
[0118] In some aspects, the indication of support may indicate support when using superimposed pilots with one or more parameters. For example, the indication of support may indicate support for the number of superimposed pilot ports in the communication, the span of symbols used for superimposed pilots, the frequency resources used for superimposed pilots, the pilot type of superimposed pilots, and / or the proportion of available power used for data signaling or for superimposed pilots, etc.
[0119] As indicated by reference numeral 515, the UE may receive an indication of a configuration for receiving communications including data signaling and superimposed pilots, and the network node may send the indication. In some aspects, the configuration may indicate the number of superimposed pilot ports in the communication, the span of symbols used for superimposed pilots, the frequency resources used for superimposed pilots, the pilot types of superimposed pilots, and / or the proportion of available power used for data signaling or for superimposed pilots, etc. In some aspects, the configuration for superimposed pilots may indicate the location (e.g., time and frequency resources) of the superimposed pilots and / or the pilot sequence of the superimposed pilots, etc. In some aspects, the UE may send feedback (e.g., confirmation) based at least in part on receiving the indication of the configuration.
[0120] As indicated by reference numeral 520, the UE may receive an indication that the communication includes data signaling and superimposed pilots, and the network node may send the indication. For example, the indication may be included in a DCI. The DCI may be the same DCI message that scheduled the communication.
[0121] As shown in reference numeral 525, a UE may receive a communication including data signaling and a superimposed pilot. In some aspects, the superimposed pilot may include a pilot sent on an inactive beam (e.g., a beam that is inactive or active for different UEs). In some aspects, the superimposed pilot may be superimposed on the data signaling on one or more communication resources of the communication. For example, the superimposed pilot and the data signaling may occupy the same set of time and frequency resources and / or may be sent using different beams. In some aspects, the data signaling may be encoded using a balanced code decoding scheme.
[0122] In some aspects, the UE may receive data signaling via an active beam and may receive superimposed pilots via one or more inactive beams. In some aspects, the active beam and the inactive beam may refer to network node transmit beams. In some aspects, the UE may receive data signaling and superimposed pilots via the same UE receive beam, and the UE may separate the data signaling from the superimposed pilots from the same UE receive beam. In some aspects, the UE may receive data signaling and superimposed pilots via one or more additional receive beams of the UE.
[0123] In some aspects, the superimposed pilot may include a reference signal, such as a CSI-RS, a CRS, and / or an extended DMRS, etc. In some aspects, the superimposed pilot may include a reference signal having a waveform different from that of a multiplexed reference signal based at least in part on being superimposed on a data signal. For example, the reference signal may be used as a CSI-RS, a CRS, and / or an extended DMRS without having a conventional waveform.
[0124] In some aspects, the superposition pilots may include multiple sets of superposition pilots. For example, the superposition pilots may include sets of superposition pilots associated with different pilot ports and / or beams. In some aspects, the first set of superposition pilots may be orthogonal to the second set of superposition pilots. In some aspects, each superposition pilot in a set of superposition pilots (SIPs) (e.g., SIPs from each different pilot port and / or beam) may be orthogonal (e.g., in time and frequency resources and / or in coding resources).
[0125] In some aspects, the superposition pilot shares available transmit power with data signaling sent via one or more communication resources. For example, the network node may have a power limit P for each resource (e.g., resource element) of the communication. The network node may configure a first power P1 for sending data signaling and a second power P2 for sending superposition pilots, where the sum of P1 and P2 is P. In some aspects, the amount of power allocated to data signaling P1 is based at least in part on the number of ports used for superposition pilots.
[0126] As shown by reference numeral 530, the UE may estimate the channel based at least in part on a pilot of an active beam associated with data signaling. In some aspects, an active beam is a beam that carries data signaling. In some aspects, the pilot of the active beam may be orthogonal to the data signaling (e.g., using a unique combination of time and frequency resources and / or coding resources, etc.). In some aspects, the pilot of the active beam may not be orthogonal to the data signaling (e.g., superimposed pilots) and may overlap with the data signaling on time and frequency resources and / or coding resources.
[0127] The UE may decode data signaling from the communication, as indicated by reference numeral 535. For example, the UE may subtract an estimate of the superimposed pilot from a received signal (eg, signal samples) to improve isolation (eg, noise reduction) from the data signaling.
[0128] In some aspects, the UE may iteratively estimate the data, subtract the data from the received signal to isolate the superimposed pilot, estimate the superimposed pilot from the signal from which the data has been subtracted, and then re-estimate the data based at least in part on the signal from which the superimposed pilot has been subtracted. For example, the UE may perform iterative data estimation on data signaling in a time and frequency segment of the communication resource, and / or perform iterative data estimation on superimposed pilots in a time and frequency segment of the communication resource. In some aspects, the UE may perform multiple iterations of estimating the data and superimposed pilots. For example, the iterations of estimating the data and superimposed pilots may include performing iterative data estimation on data signaling in a time and frequency segment of the communication resource, and performing iterative pilot channel estimation on the signaling of the communication (e.g., signaling from which the iterative estimation of the data has been subtracted). The UE may perform multiple iterations to improve the accuracy of the estimation.
[0129] In some aspects, the UE may decode the data signaling based at least in part on knowing that the data signaling has a balanced sequence within a codeword.
[0130] As shown by reference numeral 540, the UE may measure one or more channels of one or more beams based at least in part on the superimposed pilot. In some aspects, the UE may measure one or more inactive beams (e.g., neighbor beams, beams used for communication with another UE, and / or beams configured for activation and / or selection by the UE).
[0131] The UE and the network node can communicate based at least in part on the superimposed pilot, as indicated by reference numeral 545. For example, the UE can indicate whether beam reselection is needed based at least in part on the superimposed pilot.
[0132] Based at least in part on the use of superimposed pilots, the network can save network resources that might have been used to convey orthogonal pilots for data. In this way, the network can support additional pilots, higher throughput for the same number of pilots, and / or higher spectral efficiency.
[0133] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.
[0134] Figure 6 is a diagram of an example associated with data signaling with superimposed pilots according to the present disclosure. Figure 6 In the context of , a network node (e.g., network node 110, CU, DU, and / or RU) may communicate with a UE (e.g., UE 120). In some aspects, the network node and the UE may be part of a wireless network (e.g., wireless network 100). The UE and the network node may be in Figure 6 The illustrated operations are preceded by establishing a wireless connection. In some aspects, the network may support MU-MIMO and / or dense MU-MIMO.
[0135] As shown by reference numeral 600, the communication may include resources allocated to data and resources allocated to orthogonal pilots (e.g., additional pilots and / or pilots of active beams). For example, the orthogonal pilots may include DMRS, which the UE may use to estimate the channel of the active beam carrying the data. In some aspects, a symbol with DMRS may be designated as a DMRS symbol. In some aspects, the communication may include one or more DMRS symbols. In some aspects, data and orthogonal pilots may be sent via an active beam.
[0136] As shown by reference numeral 605, the communication may include superposition pilots. In some aspects, the superposition pilots may include superposition pilots associated with different pilot ports and / or beams. In some aspects, the superposition pilots associated with different pilot ports and / or beams may be orthogonal. For example, a first set of superposition pilots associated with a first pilot port and / or a first beam may be carried on a different set of time and frequency resources than a second set of superposition pilots associated with a second pilot port and / or a second beam.
[0137] As shown in reference numeral 610, the communication may include data and an orthogonal pilot with a superimposed pilot superimposed thereon. In some aspects, the data and the orthogonal pilot may be sent with greater power than the superimposed pilot. In some aspects, the superimposed pilot may not be a superimposed pilot on an orthogonal pilot and / or the orthogonal pilot may have a full allocation of transmit power.
[0138] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The described examples are different. For example, instead of orthogonal pilots, the network node may send pilots for channel estimation (e.g., pilots sent via active beams) as pilots superimposed on a subset of data. In some aspects, the pilots used for channel estimation may be a collection of superimposed pilots.
[0139] Figure 7 is a diagram of an example 700 associated with data signaling with superimposed pilots according to the present disclosure. Figure 7 In the context of , a network node (e.g., network node 110, CU, DU, and / or RU) may communicate with a UE (e.g., UE 120). In some aspects, the network node and the UE may be part of a wireless network (e.g., wireless network 100). The UE and the network node may be in Figure 7 The illustrated operations are preceded by establishing a wireless connection. In some aspects, the network may support MU-MIMO and / or dense MU-MIMO.
[0140] like Figure 7 As shown, the UE may receive a receive signal (e.g., as samples via one or more antennas). The UE may perform iterations of data estimation based at least in part on the receive signal. The UE may subtract an estimate of the data signal from the receive signal to isolate the superimposed pilot. The UE may input the received signal with the data removed for performing superimposed pilot estimation. The UE may also estimate the superimposed pilot using an estimate of the variance of the mean of the data signal. The UE may then subtract an estimate of the superimposed pilot signal from the receive signal.
[0141] The output including the received signal with the SIP signal eliminated (e.g., subtracted) can be provided as an input to the data estimate in a subsequent iteration of data estimation and superimposed pilot estimation. In some aspects, the UE can perform a configured number of iterations. In some aspects, the UE can continue to perform iterations until the data estimate is sufficiently refined for decoding.
[0142] As indicated above, Figure 7 are provided as examples. Other examples can be found in the Figure 7 The examples described are different.
[0143] Figure 8is a diagram illustrating an example process 800 performed, for example, by a UE in accordance with the present disclosure. Example process 800 is an example in which a UE (eg, UE 120) performs operations associated with data signaling with superimposed pilots.
[0144] like Figure 8 As shown, in some aspects, process 800 may include receiving a communication including data signaling and a superimposed pilot superimposed on the data signaling sent via one or more communication resources of the communication (block 810). Fig.10 The communication manager 140 and / or receiving component 1002 depicted in FIG. 1 may receive communications including data signaling and superimposed pilots superimposed on the data signaling sent via one or more communication resources of the communication, as described above.
[0145] like Figure 8 As further shown, in some aspects, process 800 may include decoding data signaling from the communication (block 820). For example, a UE (e.g., using Fig.10 The communications manager 140 and / or receiving component 1002 or communications manager 1008 depicted in FIG. 1004 may decode data signaling from the communications, as described above.
[0146] like Figure 8 As further shown, in some aspects, process 800 may include measuring one or more channels of one or more beams based at least in part on the superimposed pilots (block 830). Fig.10 The communication manager 140 and / or receiving component 1002 or the communication manager 1008 depicted in FIG. 1 may measure one or more channels of one or more beams based at least in part on the superimposed pilots, as described above.
[0147] Process 800 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.
[0148] In a first aspect, receiving communications includes receiving data signaling via an active beam and receiving superimposed pilots via one or more beams.
[0149] In a second aspect, either alone or in combination with the first aspect, process 800 includes estimating a channel associated with a communication based at least in part on a pilot received via an active beam.
[0150] In a third aspect, alone or in combination with one or more of the first and second aspects, process 800 includes receiving a pilot via an active beam as a superimposed pilot or as a pilot orthogonal to data signaling.
[0151] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the superimposed pilot includes one or more of a CSI-RS, a CRS, or an extended DMRS.
[0152] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the superimposed pilots include a first set of superimposed pilots and a second set of superimposed pilots orthogonal to the first set of superimposed pilots.
[0153] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the superimposed pilot shares available transmission power with data signaling transmitted via one or more communication resources.
[0154] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, an amount of power allocated to data signaling is based at least in part on a number of ports on which pilots are superimposed.
[0155] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, decoding data signaling from a communication includes performing iterative estimation of data and superimposed pilots.
[0156] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, performing iterative estimation of data and superimposed pilots includes performing iterative data estimation on data signaling in time and frequency segments of communication resources.
[0157] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, performing iterative estimation of data and superimposed pilot comprises performing iterative pilot channel estimation on communicated signaling minus the iterative estimate of data.
[0158] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, process 800 includes sending an indication of support for receiving communications.
[0159] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the indication of support indicates support for one or more parameters for communications including data signaling and superimposed pilots.
[0160] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, process 800 includes receiving an indication of a configuration for receiving communications including data signaling and superimposed pilots.
[0161] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the configuration indicates one or more of the number of superimposed pilot ports in the communication, the span of symbols used for superimposed pilots, the frequency resources used for superimposed pilots, the pilot type of superimposed pilots, or the ratio of available power used for data signaling or for superimposed pilots.
[0162] In a fifteenth aspect, alone or in combination with one or more of the first through fourteenth aspects, process 800 includes receiving an indication that the communication includes a superimposed pilot.
[0163] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 800 may be performed in parallel.
[0164] Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a network node in accordance with the present disclosure. Example process 900 is an example in which a network node (eg, network node 110) performs operations associated with data signaling with superimposed pilots.
[0165] like Fig. 9 As shown, in some aspects, process 900 may include sending an indication that the communication includes a superimposed pilot (block 910). For example, a network node (e.g., using Fig.10 The communication manager 150 and / or the sending component 1004 depicted in FIG. 1004 may send an indication that the communication includes a superimposed pilot, as described above.
[0166] like Fig. 9 As further shown, in some aspects, process 900 may include sending a communication including data signaling and a superimposed pilot superimposed on the data signaling sent via one or more communication resources of the communication (block 920). Fig.10 The communication manager 150 and / or transmitting component 1004 depicted in FIG. 1 may transmit communications including data signaling and superimposed pilots superimposed on the data signaling transmitted via one or more communication resources of the communication, as described above.
[0167] 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.
[0168] In a first aspect, transmitting communications includes transmitting data signaling via an active beam and transmitting a superimposed pilot via one or more beams.
[0169] In a second aspect, alone or in combination with the first aspect, process 900 includes sending a pilot via an active beam.
[0170] In a third aspect, alone or in combination with one or more of the first and second aspects, sending the pilot via the active beam includes sending the pilot via the active beam as an orthogonal pilot, or sending the pilot via the active beam as a superimposed pilot.
[0171] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the superimposed pilot includes one or more of a CSI-RS, a CRS, or an extended DMRS.
[0172] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the superimposed pilots include a first set of superimposed pilots and a second set of superimposed pilots orthogonal to the first set of superimposed pilots.
[0173] In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, the second set of superimposed pilots is orthogonal to the first set of superimposed pilots based at least in part on one or more of a first set of superimposed pilots and a second set of superimposed pilots using different time resources, a first set of superimposed pilots and a second set of superimposed pilots using different frequency resources, or a first set of superimposed pilots and a second set of superimposed pilots using different decoding resources.
[0174] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, superimposed pilots share available transmit power with data signaling transmitted via one or more communication resources.
[0175] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the amount of power allocated to data signaling is based at least in part on the number of ports on which the pilots are superimposed.
[0176] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 900 includes receiving an indication of support for receiving communications.
[0177] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the indication of support indicates support for one or more parameters for communications including data signaling and superimposed pilots.
[0178] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, process 900 includes sending an indication of a configuration for receiving communications including data signaling and superimposed pilots.
[0179] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the configuration indicates one or more of the number of superimposed pilot ports in the communication, the span of symbols used for superimposed pilots, the frequency resources used for superimposed pilots, the pilot type of superimposed pilots, or the ratio of available power used for data signaling or for superimposed pilots.
[0180] although Fig. 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include Fig. 9 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 900 may be performed in parallel.
[0181] The receiving component 1002 can receive an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having balanced sequences within codewords. The receiving component 1002 can receive the balanced code communication from the network node, receiving the balanced code communication includes decoding the codeword of the balanced code communication and estimating one or more parameters of communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0182] Receiving component 1002 can receive the superimposed pilot on time and frequency resources shared with balanced code communications.
[0183] Communications manager 1008 and / or receiving component 1002 can measure one or more channels of one or more beams based at least in part on the superimposed pilot.
[0184] Receiving component 1002 can receive an indication of a plurality of candidate configurations for balanced code communication, wherein receiving the indication of the configuration comprises receiving in a DCI an indication of selecting a configuration from the plurality of candidate configurations.
[0185] The sending component 1004 can send an indication of support for communicating using balanced codes.
[0186] The communications manager 1008 may construct a trellis diagram for determining a balance of balanced code communications.
[0187] 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.10The illustrated set of component(s) may be described as being executable by Fig.10 Another collection of components shown performs one or more functions.
[0188] Fig.10 1 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a UE, 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 (e.g., communication manager 140).
[0189] In some aspects, the apparatus 1000 may be configured to perform Figures 5 to 7 , Figure 12 to Figure 13 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 The process of 800 Fig.14 In some aspects, the apparatus 1000 and / or the process 1400 and / or the combination of operations thereof. Fig.10 One or more of the components shown in the figure 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 at least partially implemented as software stored in a memory. For example, a component (or a portion of a component) may be implemented as an instruction or code that is stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0190] 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 2One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the UE.
[0191] 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.
[0192] The receiving component 1002 can receive a communication including data signaling and a superimposed pilot superimposed on the data signaling sent via one or more communication resources of the communication. The receiving component 1002 and / or the communication manager 1008 can decode the data signaling from the communication. The receiving component 1002 and / or the communication manager 1008 can measure one or more channels of one or more beams based at least in part on the superimposed pilot.
[0193] Receiving component 1002 and / or communication manager 1008 can estimate a channel associated with the communication based at least in part on pilots received via active beams.
[0194] Receiving component 1002 can receive the pilot via the active beam as a superimposed pilot or as a pilot orthogonal to data signaling.
[0195] Sending component 1004 can send an indication of support for receiving communications.
[0196] Receiving component 1002 can receive an indication of a configuration for receiving communications including data signaling and superimposed pilots.
[0197] Receiving component 1002 can receive an indication that the communication includes a superimposed pilot.
[0198] 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.10Two 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.
[0199] Fig.11 1 is a diagram of an example apparatus 1100 for wireless communication according to the present disclosure. Apparatus 1100 may be a network node, or a network node may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102 and a sending component 1104, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using receiving component 1102 and sending component 1104. As further shown, apparatus 1100 may include a communication manager 1108 (e.g., communication manager 150).
[0200] In some aspects, the apparatus 1100 may be configured to perform Figures 5 to 7 , Figure 12 to Figure 13 Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Fig. 9 The process of 900 Fig.15 In some aspects, Fig.11 The device 1100 and / or one or more components shown may include a combination of Figure 2 One or more components of the network node. Additionally or alternatively, Fig.11 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 at least partially implemented as software stored in a memory. For example, a component (or a portion of a component) may be implemented as an instruction or code that is stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0201] The receiving component 1102 may receive communications from the device 1106, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1102 may provide the received communications to one or more other components of the device 1100. In some aspects, the receiving component 1102 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 1100. In some aspects, the receiving component 1102 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network node.
[0202] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1106. In some aspects, one or more other components of the device 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the device 1106. In some aspects, the transmitting component 1104 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 1106. In some aspects, the transmitting component 1104 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.
[0203] Transmitting component 1104 can transmit an indication that the communication includes a superimposed pilot. Transmitting component 1104 can transmit a communication including data signaling and a superimposed pilot superimposed on the data signaling transmitted via one or more communication resources of the communication.
[0204] Transmitting component 1104 can transmit a pilot via an active beam.
[0205] Receiving component 1102 can receive an indication of support for receiving communications.
[0206] Transmitting component 1104 can transmit an indication of a configuration for receiving communications including data signaling and superimposed pilots.
[0207] The transmitting component 1104 can transmit an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of the balanced code communication having a balanced sequence within a codeword. The transmitting component 1104 can transmit the balanced code communication from the network node, the transmitting balanced code communication comprising encoding a codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0208] Transmitting component 1104 can transmit the superimposed pilot on time and frequency resources shared with balanced code communications.
[0209] The sending component 1104 can send an indication of a plurality of candidate configurations for balanced code communication, wherein sending the indication of the configuration includes sending an indication of selecting a configuration from the plurality of candidate configurations in a DCI.
[0210] Receiving component 1102 can receive an indication of support for communicating using balanced codes.
[0211] The communications manager 1108 may construct a trellis diagram for determining a balance of balanced code communications.
[0212] Fig.11 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.11 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.11 Two or more components shown may be implemented in a single component, or Fig.11 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.11 The illustrated set of component(s) may be described as being executable by Fig.11 Another collection of components shown performs one or more functions.
[0213] In some aspects described herein, balanced coding schemes may be used to support simplified decoding of communications and / or improve error correction of communications. In some aspects, balanced code communications may be used in a network that uses superimposed pilots to improve orthogonality between balanced code communications and superimposed pilots.
[0214] For example, to reduce receiver complexity (e.g., the complexity of receiving communications at a UE), balanced code communications can use an outer balanced code. In a balanced code, a codeword results in a vector of constellation points that sum to a known value (e.g., zero). Therefore, a superimposed pilot channel estimation filter that averages over the codeword will experience orthogonal data. The balanced code length matches the time and bandwidth of the superimposed pilot coherence, so that the codeword matches the averaging filter in time and frequency of the channel superimposed pilot estimate.
[0215] The encoding process may include k bBitmap to n b bits, where k b represents a sequence index (e.g., treated as an integer) that is mapped to the q-order constellation The balanced codeword of the symbol, each symbol is mapped to log 2 q bits, resulting in each codeword n b Bits are mapped from a bit stream to a bit stream. The network node can encode the codeword (e.g., the payload of the balanced code communication) using a low-density parity check (LDPC) code (e.g., an NR code). The network node can map the coded bits to symbols so that each balanced codeword is mapped to a coherent bandwidth and time intended to superimpose a superimposed pilot port. Since the LDPC code is systematic, the balanced codeword remains balanced. The result of this process is an LDPC coded slot in which the LDPC systematic portion is balanced and can be used for superimposed pilots while maintaining orthogonality to the superimposed pilots.
[0216] Balanced code decoding may have a code decoding rate R < 1. Therefore, balanced code decoding results in a loss of bandwidth compared to not decoding the payload. However, this loss is relatively small compared to using pilots that are orthogonal to the data (e.g., on different time and frequency resources), and thus orthogonality is achieved while maintaining improved spectral efficiency compared to orthogonal pilots. In addition, balanced codes themselves can improve error correction capabilities over LDPC, resulting in improved overall performance.
[0217] In order to multiplex multiple superimposed pilots on data, the balanced codewords can be split so that different SIP ports are multiplexed on each codeword (or codeword group). Balanced codes can also be used to reduce the number of iterations in an iterative receiver by being used to guide the iterative process.
[0218] In some aspects, the proposed balanced code is an enumeration of all balanced sequences of a fixed length and a given constellation in lexicographic order. The balanced decoding can achieve the highest decoding rate possible for the balanced code by construction. The balanced decoding can be achieved by "walking" along the path in the trellis diagram to convert the index to the sequence or the sequence to the index. The codebook can include real codewords of the pulse amplitude modulation (PAM) constellation, and each pair of codewords can be used as the real and imaginary parts of the block to match the superimposed pilot sequence.
[0219] The mesh graph may be constructed by a network node and / or another device associated with the network. The network node or other device may construct the mesh graph in a recursive manner. For example, a process may include:
[0220] Init:
[0221]
[0222] For k = N-1:-1:1
[0223] For the possible partial and values of level k
[0224] The possible partial sums at each level can be calculated relatively simply. For example, for level k, the set of possible partial sums is:
[0225]
[0226] where c max It is the maximum constellation point.
[0227] It can be calculated as the intersection between the constellation symbol and the difference of the partial sums of two consecutive and / or subsequent stages.
[0228] In some aspects, the UE may report the capability to support a balanced coding scheme. Additionally or alternatively, the UE may report the capability to support a balanced coding scheme in conjunction with using a superimposed pilot scheme.
[0229] The network node may send an indication of one or more parameters of the superimposed pilot scheme and / or one or more balanced code parameters. For example, the network node may indicate the length of the codeword, the constellation type, how to map the codeword within the resource block, and / or the grid diagram, etc. For example, the network node may indicate an operation for the UE to construct a grid diagram and / or may provide a grid diagram as constructed by the network node. In some aspects, the UE may send an indication that the UE has received or constructed a grid diagram before the network node begins using the balanced code decoding scheme. In some aspects, the network node may indicate the pilot pattern used within the balanced code decoding scheme.
[0230] In some aspects, a network node may send an indication of one or more parameters of a superimposed pilot scheme and / or one or more balancing code parameters via a DCI. For example, the DCI may be associated with scheduling balanced code communications. In some aspects, the DCI may indicate one or more parameters of a superimposed pilot scheme and / or one or more balancing code parameters based at least in part on indicating a candidate set of one or more parameters of a superimposed pilot scheme and / or one or more balancing code parameters from a set of previously indicated parameters (e.g., signaled in an RRC message).
[0231] Fig.12 is a diagram of an example 1200 associated with a balanced coding scheme according to the present disclosure. Fig.12 As shown, a network node (e.g., network node 110, CU, DU, and / or RU) may communicate with a UE (e.g., UE 120). In some aspects, the network node and the UE may be part of a wireless network (e.g., wireless network 100). The UE and the network node may be in a Fig.12 The operations shown are performed after a wireless connection has been established.
[0232] As indicated by reference numeral 1205, the network node may send configuration information, and the UE may receive the configuration information. In some aspects, the UE may receive the configuration information via one or more of RRC signaling, one or more MAC CEs, and / or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for the UE to select (e.g., known to the UE and / or previously indicated by the network node or other network device) and / or explicit configuration information for the UE to configure the UE, etc.
[0233] In some aspects, the configuration information may indicate that the UE is to provide an indication of support for communication using balanced codes when communicating with a network node. In some aspects, the configuration may indicate one or more parameters of balanced code communication supported by the UE. In some aspects, the configuration information may indicate that the UE is to obtain a grid map associated with balanced code communication. For example, the configuration information may indicate parameters for the UE to generate a grid map, the configuration information may indicate that the UE is to receive parameters for the UE to generate a grid map in a later communication, and / or the configuration information may indicate that the UE is to receive a grid map, etc.
[0234] The UE may configure itself based at least in part on the configuration information.In some aspects, the UE may be configured to perform one or more operations described herein based at least in part on the configuration information.
[0235] As shown by reference numeral 1210, the UE may send an indication of support for communication using balanced codes, and the network node may receive the indication. In some aspects, the indication of support may indicate one or more parameters that the UE supports for communication using balanced codes. For example, the UE may indicate the size (e.g., length) of codewords (e.g., balanced codewords) for which the UE supports communication using balanced codes. In some aspects, when using communication using balanced codes, the UE may indicate the number of codewords that the UE supports for a single transmission (e.g., a single transmission block).
[0236] As indicated by reference numeral 1215, the network node may obtain a trellis map associated with balanced code communication. In some aspects, the network node may obtain multiple trellis maps, where the multiple trellis maps are associated with different network and / or channel conditions for different UEs and / or each UE. In some aspects, the network node may construct the trellis map based at least in part on one or more parameters indicated from another network node or a node external to the network. In some aspects, the network node may receive the trellis map from other network nodes or nodes external to the network.
[0237] As shown by reference numeral 1220, the UE may receive an indication of a candidate configuration for balanced code communication, and the network node may send the indication. The configuration may indicate parameters of a signal of balanced code communication having a balanced sequence within a codeword. For example, the sequence may be balanced by summing to a known value, such as zero. In some aspects, the values of the sequence are summed to the known value. In some aspects, the values of the sequence are mapped to additional values that sum to the known value.
[0238] In some aspects, candidate configurations may include parameters of a signal (e.g., codeword) of a balanced code communication, such as the length of the codeword, the constellation type, how the codeword is mapped within a resource block, and / or a grid diagram, and the like.
[0239] As indicated by reference numeral 1225, the UE may receive an indication of a configuration for balanced code communications, and the network node may send the indication. In some aspects, the configuration may be associated with a plurality of subsequent balanced code communications, all of which are communicated with the active window, and / or until a subsequent configuration is sent. In some aspects, the configuration may be indicated as a selection from the candidate configurations described in conjunction with reference numeral 1220.
[0240] In some aspects, configuration may include parameters of a signal (e.g., codeword) of a balanced code communication, such as the length of the codeword, the constellation type, how the codeword is mapped within a resource block, and / or a grid diagram, and so forth.
[0241] In some aspects, the UE may receive an indication of the configuration via a DCI. For example, the DCI may indicate that a configuration is selected from the candidate configurations described in conjunction with reference numeral 1220.
[0242] As indicated by reference numeral 1230, the UE may obtain a mesh map associated with balanced code communications. In some aspects, the UE may construct the mesh map based at least in part on one or more parameters indicated from the network node. In some aspects, the UE may receive the mesh map from the network node (e.g., as part of or in conjunction with an indication of a configuration of balanced code communications as described in conjunction with reference numeral 1225).
[0243] The UE may receive balanced code communications and / or superimposed pilots, and the network node may send balanced code communications and / or superimposed pilots, as indicated by reference numeral 1235. For example, the network node may send balanced code communications without superimposed pilots, or may send balanced code communications and superimposed pilots (e.g., on a different beam than the beam carrying the balanced code communications).
[0244] In some aspects, the UE may receive a superimposed pilot on time and frequency resources shared with balanced code communications. The superimposed pilot may have characteristics described herein. In some aspects, the UE may measure one or more channels of one or more beams based at least in part on the superimposed pilot (e.g., for beam reselection or other beam management and / or mobility, etc.).
[0245] As indicated by reference numeral 1240, the UE may decode balanced code communications based at least in part on being balanced. For example, the UE may decode codewords of balanced code communications based at least in part on configuration and at least in part on applying balance as a property of balanced code communications. In this manner, attempts to decode balanced code communications that result in an imbalance (e.g., in the value of the codeword) may be discarded as invalid, and the UE may refine the attempts to only those decoding attempts that result in balanced codewords.
[0246] As indicated by reference numeral 1245, the UE may estimate one or more parameters for communicating with the network node. For example, the UE may estimate the one or more parameters for communicating with the network node based at least in part on the configuration and based at least in part on applying balancing as a property of balanced code communications. In some aspects, estimating the one or more parameters for communicating with the network node may include estimating a channel for communication between the network node and the UE or performing beam management, among other things.
[0247] Based at least in part on using balanced code communications, network nodes and UEs can save network resources that may have been used by sending multiple signals (e.g., data signals and superimposed pilots) on resources that are orthogonal in time and frequency. Additionally or alternatively, balanced codes can improve error correction capabilities over LDPC, so that overall performance is improved.
[0248] As indicated above, Fig.12 are provided as examples. Other examples can be found in the Fig.12 The examples described are different.
[0249] Fig.13 An example trellis diagram 1300 that may be used in a balanced code decoding scheme according to the present disclosure is shown. For illustration and simplicity, the trellis diagram shown has n=4; however, larger or smaller trellis diagrams may be used in the context of the present disclosure. The top path at each node represents 3, the second top path represents 1, the third top node represents -1 and the fourth top path represents -3. The trellis diagram is calculated backwards from the last symbol. In this example, 44 balanced codewords exist and are mapped in lexicographic order in the input sequence. Again, the example shows ratio.
[0250] The encoder in this example can proceed along the trellis diagram based at least in part on the codeword to be communicated. For example, given an input index I=21, at each level, the network node can select a step size based on an index range defined by traversing the path value (or previous path value) on the trellis diagram. For example:
[0251] InitI′=I,D=0
[0252]
[0253] I′=I′-10=11
[0254] D=D+d(1)=-1
[0255]
[0256] I′=I′-9=2
[0257] D=D+d(2)=2
[0258]
[0259] I′=I′-2=0
[0260] D=D+d(3)=3
[0261] At this point, in the selection process, there is only one valid path left, and I = 0, and D is a constellation point: d(4) = -D, so the output is d = (-1, 3, 1, -3) T .
[0262] At the decoder side (e.g., at the UE), the decoder receives the codeword d = (-1, 3, 1, -3) T The decoder can decode the codeword in the process where Init is I′=0, D=0. Since the first symbol is -1, D=-1 is the sum of the first symbol and
[0263] I'=10 is the sum of the forward paths of all valid transitions below symbol -1. Because the second symbol is 3, D=D+3=2 is the sum of the first two symbols, and I'=I'+(2+3+4)=19 is the sum of the forward paths of all valid transitions below symbol 3. Because the third symbol is 1, D=D+1=3 is the sum of the first three symbols,
[0264] I'=I'+(1+1)=21 is the sum of all valid paths forward for all transitions below symbol 1. Since the fourth symbol is -3, D=D-3=0 is the sum of all symbols, which indicates a valid codeword based at least in part on summing to zero (a known value), and there is only one valid path to advance.
[0265] As indicated above, Fig.13 are provided as examples. Other examples can be found in the Fig.13 The examples described are different.
[0266] Fig.14 14 is a diagram illustrating an example process 1400 performed, for example, by a UE according to the present disclosure. Example process 1400 is an example in which a UE (eg, UE 120) performs operations associated with a balanced coding scheme.
[0267] like Fig.14 As shown in FIG. 1 , in some aspects, process 1400 may include receiving an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal for balanced code communication having a balanced sequence within a codeword (block 1410). For example, a UE (e.g., using Fig.10 The communication manager 140 and / or receiving component 1002 depicted in FIG. 1 may receive an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal for balanced code communication having balanced sequences within a codeword, as described above.
[0268] like Fig.14 As further shown, in some aspects, process 1400 may include receiving a balanced code communication from a network node, receiving the balanced code communication includes decoding a codeword of the balanced code communication and estimating one or more parameters for communicating with the network node based at least in part on the configuration and based at least in part on applying balancing as a property of the balanced code communication (block 1420). Fig.10 The communication manager 140 and / or receiving component 1002 depicted in the figure can receive balanced code communications from a network node, and receiving the balanced code communications includes decoding codewords of the balanced code communications and estimating one or more parameters for communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communications, as described above.
[0269] Process 1400 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.
[0270] In a first aspect, estimating one or more parameters of communicating with a network node includes one or more of estimating a channel for communication between the network node and a UE or performing beam management.
[0271] In a second aspect, alone or in combination with the first aspect, process 1400 includes receiving a superimposed pilot on time and frequency resources shared with balanced code communications.
[0272] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1400 includes measuring one or more channels of one or more beams based at least in part on superimposed pilots.
[0273] In a fourth aspect, alone or in combination with one or more of the first to third aspects, receiving an indication of a configuration includes receiving a DCI indicating the configuration.
[0274] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 1400 includes receiving an indication of a plurality of candidate configurations for balanced code communication, wherein receiving an indication of a configuration includes receiving an indication in a DCI of selecting a configuration from the plurality of candidate configurations.
[0275] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the parameters of a signal of balanced code communication include one or more of the length of a codeword, a constellation type, how to map a codeword within a resource block, or a grid diagram.
[0276] In a seventh aspect, either alone or in combination with one or more of aspects 1 to 6, the signal has a sequence that is balanced based at least in part on a value of a sum of the sequence to a known value or a mapping of the sequence to an additional value summed to a known value.
[0277] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the known value is zero.
[0278] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 1400 includes sending an indication of support for communications using balanced codes.
[0279] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, process 1400 includes constructing a trellis graph for determining a balance of balanced code communications.
[0280] although Fig.14 Example blocks of process 1400 are shown, but in some aspects, process 1400 may include Fig.14 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1400 may be performed in parallel.
[0281] Fig.15 is a diagram illustrating an example process 1500 performed, for example, by a base station, according to the present disclosure. The example process 1500 is an example in which a network node (eg, network node 110) performs operations associated with a balanced coding scheme.
[0282] like Fig.15 As shown in FIG. 1 , in some aspects, process 1500 may include sending an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal for balanced code communication having a balanced sequence within a codeword (block 1510). For example, a network node (e.g., using Fig.11 The communication manager 150 and / or the sending component 1104 depicted in FIG. 1 may send an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal for balanced code communication having balanced sequences within a codeword, as described above.
[0283] like Fig.15 As further shown, in some aspects, process 1500 may include sending a balanced code communication from a network node, the sending of the balanced code communication including encoding a codeword of the balanced code communication based at least in part on the configuration and based at least in part on applying balancing as a property of the balanced code communication (block 1520). Fig.11 The communication manager 150 and / or sending component 1104 depicted in the figure can send balanced code communications from the network node, and the sending balanced code communications includes encoding codewords of the balanced code communications based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communications, as described above.
[0284] Process 1500 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.
[0285] In a first aspect, process 1500 includes sending a superimposed pilot on time and frequency resources shared with balanced code communications.
[0286] In a second aspect, alone or in combination with the first aspect, sending an indication of the configuration includes receiving a DCI indicating the configuration.
[0287] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 1500 includes sending an indication of a plurality of candidate configurations for balanced code communication, wherein sending the indication of the configuration includes sending an indication in a DCI of selecting a configuration from the plurality of candidate configurations.
[0288] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the parameters of the signal of the balanced code communication include one or more of the length of the codeword, the constellation type, how to map the codeword within the resource block or the grid diagram.
[0289] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the signal has a sequence that is balanced based at least in part on a value of a sum of the sequence to a known value or a value of a mapping of the sequence to an additional value summed to a known value.
[0290] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the known value is zero.
[0291] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 1500 includes receiving an indication of support for communicating using balanced codes.
[0292] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 1500 includes constructing a trellis graph for determining a balance of balanced code communications.
[0293] although Fig.15 Example blocks of process 1500 are shown, but in some aspects, process 1500 may include Fig.15 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 1500 may be performed in parallel.
[0294] The following provides an overview of some aspects of the disclosure:
[0295] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a communication including data signaling and a superimposed pilot, wherein the superimposed pilot is superimposed on the data signaling sent via one or more communication resources of the communication; decoding the data signaling from the communication; and measuring one or more channels of one or more beams based at least in part on the superimposed pilot.
[0296] Aspect 2: The method according to aspect 1, wherein receiving the communication includes: receiving the data signaling via an active beam; and receiving the superimposed pilot via the one or more beams.
[0297] Aspect 3: The method according to aspect 2 also includes: estimating a channel associated with the communication based at least in part on the pilot received via the active beam.
[0298] Aspect 4: The method according to aspect 3 further includes: receiving the pilot as a superimposed pilot or as a pilot orthogonal to the data signaling via the active beam.
[0299] Aspect 5: A method according to any one of Aspects 1 to 4, wherein the superimposed pilot comprises one or more of the following: a channel state information reference signal (CSI-RS), a cell-specific reference signal (CRS), or an extended demodulation reference signal (DMRS).
[0300] Aspect 6: The method according to any one of aspects 1 to 5, wherein the superimposed pilots include: a first set of superimposed pilots and a second set of superimposed pilots orthogonal to the first set of superimposed pilots.
[0301] Aspect 7: The method according to any one of aspects 1 to 6, wherein the superimposed pilot shares available transmission power with the data signaling sent via the one or more communication resources.
[0302] Aspect 8: The method according to aspect 7, wherein the amount of power allocated to the data signaling is based at least in part on the number of ports of the superimposed pilot.
[0303] Aspect 9: The method according to any one of aspects 1 to 8, wherein decoding the data signaling from the communication includes: performing iterative estimation of data and the superimposed pilot.
[0304] Aspect 10: The method according to aspect 9, wherein performing the iterative estimation of the data and the superimposed pilot comprises: performing iterative data estimation on the data signaling in time and frequency segments of the communication resources.
[0305] Aspect 11: The method according to any one of aspects 9 to 10, wherein performing the iterative estimation of the data and the superimposed pilot comprises: performing iterative pilot channel estimation on the signaling of the communication, the signaling subtracting the iterative estimate of the data.
[0306] Aspect 12: The method according to any one of aspects 1 to 11, further comprising: sending an indication of support for receiving the communication.
[0307] Aspect 13: The method according to aspect 12, wherein the indication of support indicates support for the one or more parameters for communication including the data signaling and the superimposed pilot.
[0308] Aspect 14: The method according to any one of aspects 1 to 13, further comprising: receiving an indication of a configuration for receiving the communication including the data signaling and the superimposed pilot.
[0309] Aspect 15: A method according to Aspect 14, wherein the configuration indicates one or more of the following: the number of superimposed pilot ports in the communication, the span of symbols used for the superimposed pilot, the frequency resources used for the superimposed pilot, the pilot type of the superimposed pilot, or the ratio of available power used for the data signaling or for the superimposed pilot.
[0310] Aspect 16: The method according to any one of aspects 1 to 15 further comprises: receiving an indication that the communication includes the superimposed pilot.
[0311] Aspect 17: A method of wireless communication performed by a network node, the method comprising: sending an indication that a communication includes a superimposed pilot; and sending the communication including data signaling and the superimposed pilot, wherein the superimposed pilot is superimposed on the data signaling sent via one or more communication resources of the communication.
[0312] Aspect 18: The method according to aspect 17, wherein sending the communication includes: sending the data signaling via an active beam; and sending the superimposed pilot via the one or more beams.
[0313] Aspect 19: The method according to Aspect 18 further comprises: sending a pilot via an active beam.
[0314] Aspect 20: The method according to aspect 19, wherein sending the pilot via the active beam includes: sending the pilot via the active beam as an orthogonal pilot, or sending the pilot via the active beam as a superimposed pilot.
[0315] Aspect 21: A method according to any one of Aspects 17 to 20, wherein the superimposed pilot comprises one or more of the following: a channel state information reference signal (CSI-RS), a cell-specific reference signal (CRS), or an extended demodulation reference signal (DMRS).
[0316] Aspect 22: The method according to any one of aspects 17 to 21, wherein the superimposed pilots include: a first set of superimposed pilots and a second set of superimposed pilots orthogonal to the first set of superimposed pilots.
[0317] Aspect 23: A method according to Aspect 22, wherein the second set of superimposed pilots is orthogonal to the first set of superimposed pilots based at least in part on one or more of the following: the first set of superimposed pilots and the second set of superimposed pilots using different time resources, the first set of superimposed pilots and the second set of superimposed pilots using different frequency resources, or the first set of superimposed pilots and the second set of superimposed pilots using different decoding resources.
[0318] Aspect 24: The method according to any one of aspects 17 to 23, wherein the superimposed pilot shares available transmission power with the data signaling sent via the one or more communication resources.
[0319] Aspect 25: The method according to aspect 24, wherein the amount of power allocated to the data signaling is based at least in part on the number of ports of the superimposed pilot.
[0320] Aspect 26: The method according to any one of aspects 17 to 25, further comprising: receiving an indication of support for receiving the communication.
[0321] Aspect 27: The method according to aspect 26, wherein the indication of support indicates support for the one or more parameters for communication including the data signaling and the superimposed pilot.
[0322] Aspect 28: The method according to any one of aspects 17 to 27, further comprising: sending an indication of a configuration for receiving the communication including the data signaling and the superimposed pilot.
[0323] Aspect 29: A method according to Aspect 28, wherein the configuration indicates one or more of: the number of superimposed pilot ports in the communication, the span of symbols used for the superimposed pilot, the frequency resources used for the superimposed pilot, the pilot type of the superimposed pilot, or the ratio of available power used for the data signaling or for the superimposed pilot.
[0324] Aspect 30: An apparatus for 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 one or more of the methods described in Aspects 1 to 29.
[0325] Aspect 31: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 29.
[0326] Aspect 32: 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 29.
[0327] Aspect 33: 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 29.
[0328] Aspect 34: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 29.
[0329] The following provides an overview of some additional aspects of the present disclosure (starting again with Aspect 1):
[0330] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: receiving an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword; and receiving balanced code communication from a network node, receiving the balanced code communication comprising decoding the codeword of the balanced code communication and estimating one or more parameters of communicating with the network node based at least in part on the configuration and at least in part on applying balancing as a property of the balanced code communication.
[0331] Aspect 2: The method according to aspect 1, wherein estimating the one or more parameters for communicating with the network node comprises one or more of the following: estimating a channel for communication between the network node and the UE or performing beam management.
[0332] Aspect 3: The method according to any one of Aspects 1 to 2 further includes: receiving a superimposed pilot on time and frequency resources shared with the balanced code communication.
[0333] Aspect 4: The method according to aspect 3 also includes: measuring one or more channels of one or more beams based at least in part on the superimposed pilot.
[0334] Aspect 5: The method according to any one of aspects 1 to 4, wherein receiving the indication of the configuration includes: receiving downlink control information (DCI) indicating the configuration.
[0335] Aspect 6: The method according to aspect 5 further includes: receiving an indication of multiple candidate configurations for balanced code communication, wherein receiving the indication of the configuration includes receiving an indication in the DCI to select the configuration from the multiple candidate configurations.
[0336] Aspect 7: A method according to any one of Aspects 1 to 6, wherein the parameters of the signal of the balanced code communication include one or more of the following: the length of the codeword, the constellation type, how to map the codeword or grid diagram within the resource block.
[0337] Aspect 8: A method according to any one of aspects 1 to 7, wherein the signal has a sequence that is balanced based at least in part on: a value of the sequence summed to a known value or a value of the sequence mapped to an additional value summed to the known value.
[0338] Aspect 9: The method according to aspect 8, wherein the known value is zero.
[0339] Aspect 10: The method according to any one of aspects 1 to 9 further comprises: sending an indication of supporting communication using balanced codes.
[0340] Aspect 11: The method according to any one of aspects 1 to 10 further includes: constructing a grid diagram for determining the balance of the balanced code communication.
[0341] Aspect 12: A method of wireless communication performed by a network node, the method comprising: sending an indication of a configuration for balanced code communication, the configuration indicating parameters of a signal of balanced code communication having a balanced sequence within a codeword; and sending balanced code communication from the network node, sending the balanced code communication comprising encoding the codeword of the balanced code communication based at least in part on the configuration and at least in part on applying balance as an attribute of the balanced code communication.
[0342] Aspect 13: The method according to Aspect 12 further comprises: sending a superimposed pilot on time and frequency resources shared with the balanced code communication.
[0343] Aspect 14: The method according to any one of aspects 12 to 13, wherein sending the indication of the configuration includes: receiving downlink control information (DCI) indicating the configuration.
[0344] Aspect 15: The method according to aspect 14 further includes: sending an indication of multiple candidate configurations for balanced code communication, wherein sending the indication of the configuration includes sending an indication of selecting the configuration from the multiple candidate configurations in the DCI.
[0345] Aspect 16: A method according to any one of Aspects 12 to 15, wherein the parameters of the signal of the balanced code communication include one or more of the following: the length of the codeword, the constellation type, how to map the codeword or grid diagram within the resource block.
[0346] Aspect 17: A method according to any one of aspects 12 to 16, wherein the signal has a sequence that is balanced based at least in part on: a value of the sequence summed to a known value or a value of the sequence mapped to an additional value summed to the known value.
[0347] Aspect 18: The method according to Aspect 17, wherein the known value is zero.
[0348] Aspect 19: The method according to any one of aspects 12 to 18 further comprises: receiving an indication of supporting communication using balanced codes.
[0349] Aspect 20: The method according to any one of aspects 12 to 19 further includes: constructing a grid diagram for determining the balance of the balanced code communication.
[0350] Aspect 21: An apparatus for 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 one or more of the methods described in Aspects 1 to 20.
[0351] Aspect 22: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 20.
[0352] Aspect 23: 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 20.
[0353] Aspect 24: 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 20.
[0354] Aspect 25: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 20.
[0355] While the foregoing disclosure provides illustration and description, it 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 these aspects.
[0356] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or 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 implemented, procedures and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be clear that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to specific software codes herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method at least in part based on the description herein.
[0357] 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.
[0358] 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).
[0359] Any element, action or instruction used herein should not be interpreted as key or necessary, unless clearly stated so. In addition, as used herein, the articles "one" and "a kind of" are 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 with 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 only one project is intended to be referred to, the phrase "only one" or similar terms are used. In addition, as used herein, the terms "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "elements with" A can also have B). In addition, the phrase "based on" is intended to represent "based at least in part on", unless otherwise explicitly stated. 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 expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").
Claims
1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory and configured to: receiving a communication including data signaling and a superimposed pilot superimposed on the data signaling transmitted via one or more communication resources of the communication; decoding said data signaling from said communication; as well as One or more channels of one or more beams are measured based at least in part on the superimposed pilot.
2. The UE of claim 1 , wherein to receive the communication, the one or more processors are configured to: receiving the data signaling via an active beam; and The superimposed pilot is received via the one or more beams.
3. The UE of claim 2, wherein the one or more processors are further configured to: estimating a channel associated with the communication based at least in part on additional pilots received via the active beam, or The additional pilot is received via the active beam as a superimposed pilot or as a pilot orthogonal to the data signaling.
4. The UE of claim 1 , wherein the superimposed pilot comprises one or more of: Channel State Information Reference Signal (CSI-RS), Cell-specific Reference Signal (CRS), or Extended Demodulation Reference Signal (DMRS).
5. The UE according to claim 1, wherein the superimposed pilot comprises: The first set of superimposed pilots, and A second set of superimposed pilots is orthogonal to said first set of superimposed pilots.
6. The UE of claim 1, wherein the superimposed pilot shares available transmit power with the data signaling sent via the one or more communication resources.
7. The UE of claim 6, wherein an amount of power allocated to the data signaling is based at least in part on a number of ports of the superimposed pilot.
8. The UE of claim 1 , wherein to perform iterative estimation of data and the superimposed pilot, the one or more processors are configured to: performing iterative data estimation on the data signaling in time and frequency segments of the communication resources; or Iterative pilot channel estimation is performed on the communicated signaling having the iterative estimate of the data subtracted from the signaling.
9. The UE of claim 1, wherein the one or more processors are further configured to: An indication of support for receiving the communication including data signaling and superimposed pilot is sent.
10. The UE of claim 9, wherein the indication of support indicates support for the one or more parameters for the communication including data signaling and superimposed pilots.
11. The UE of claim 1 , wherein the one or more processors are further configured to: An indication of a configuration for receiving the communication including the data signaling and the superimposed pilot is received.
12. The UE of claim 11, wherein the configuration indicates one or more of the following: the number of superimposed pilot ports in the communication, the span of symbols used for the superimposed pilot, frequency resources used for the superimposed pilot, The pilot type of the superimposed pilot, or The ratio of available power used for the data signaling or for the superimposed pilot.
13. The UE of claim 1, wherein the one or more processors are further configured to: An indication is received that the communication includes the superimposed pilot.
14. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory and configured to: sending an indication that the communication includes a superimposed pilot; as well as The communication is transmitted including data signaling and the superimposed pilot, the superimposed pilot being superimposed on the data signaling transmitted via one or more communication resources of the communication.
15. The network node of claim 14, wherein to send the communication, the one or more processors are configured to: sending the data signaling via an active beam; and The superimposed pilot is transmitted via the one or more beams.
16. The network node of claim 15, wherein the one or more processors are further configured to: Additional pilots are sent via the active beam.
17. The network node of claim 16, wherein to transmit the pilot via the active beam, the one or more processors are configured to: sending the additional pilot as an orthogonal pilot via the active beam, or The additional pilot is sent via the active beam as a superimposed pilot.
18. The network node of claim 14, wherein the superimposed pilot comprises one or more of: Channel State Information Reference Signal (CSI-RS), Cell-specific Reference Signal (CRS), or Extended Demodulation Reference Signal (DMRS).
19. The network node of claim 14, wherein the superimposed pilot comprises: The first set of superimposed pilots, and A second set of superimposed pilots is orthogonal to said first set of superimposed pilots.
20. The network node of claim 19, wherein the second set of superimposed pilots is orthogonal to the first set of superimposed pilots based at least in part on one or more of: using the first set of superimposed pilots and the second set of superimposed pilots of different time resources, using the first set of superimposed pilots and the second set of superimposed pilots of different frequency resources, or The first set of superimposed pilots and the second set of superimposed pilots use different decoding resources.
21. The network node of claim 14, wherein the superimposed pilot shares available transmit power with the data signaling on the one or more communication resources.
22. The network node of claim 21, wherein an amount of power allocated to the data signaling is based at least in part on a number of ports of the superimposed pilots.
23. The network node of claim 14, wherein the one or more processors are further configured to: An indication of support for receiving the communication including the data signaling and the superimposed pilot is received.
24. The network node of claim 14, wherein the one or more processors are further configured to: An indication of a configuration for receiving the communication including the data signaling and the superimposed pilot is sent.
25. The network node of claim 24, wherein the configuration indicates one or more of the following: the number of superimposed pilot ports in the communication, the span of symbols used for the superimposed pilot, frequency resources used for the superimposed pilot, The pilot type of the superimposed pilot, or The ratio of available power used for the data signaling or for the superimposed pilot.
26. A method of wireless communication performed by a user equipment (UE), the method comprising: receiving a communication including data signaling and a superimposed pilot superimposed on the data signaling transmitted via one or more communication resources of the communication; decoding said data signaling from said communication; as well as One or more channels of one or more beams are measured based at least in part on the superimposed pilot.
27. The method of claim 26, wherein receiving the communication comprises: receiving the data signaling via an active beam; as well as The superimposed pilot is received via the one or more beams.
28. The method of claim 26, wherein the superimposed pilot comprises: The first set of superimposed pilots, and A second set of superimposed pilots is orthogonal to said first set of superimposed pilots.
29. A method of wireless communication performed by a network node, the method comprising: sending an indication that the communication includes a superimposed pilot; as well as The communication is transmitted including data signaling and the superimposed pilot, the superimposed pilot being superimposed on the data signaling transmitted via one or more communication resources of the communication.
30. The method of claim 29, wherein sending the communication comprises: sending the data signaling via an active beam; as well as The superimposed pilot is transmitted via the one or more beams.