Wireless device and network device and method of operation thereof

Abstract

In an aspect, a network device (e.g., a BS, a core network component, etc.) determines a self-interference measurement (SIM) configuration associated with zero-point formation at a wireless device (e.g., a UE or a BS), the zero-point formation associated with steering at least one receive beam of the wireless device and / or at least one transmit beam of the wireless device away from one or more external self-interference sources. The network device transmits the SIM configuration to the wireless device. The wireless device performs at least one zero-point formation procedure in accordance with the SIM configuration.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims the benefits of U.S. Provisional Application No. 63 / 036,137, filed June 8, 2020, entitled “NULL-FORMING BASED ON SELF-INTERFERENCE MEASUREMENT CONFIGURATION,” and U.S. Non-Provisional Application No. 17 / 236,875, filed April 21, 2021, entitled “NULL-FORMING BASED ON SELF-INTERFERENCE MEASUREMENT CONFIGURATION,” both of which have been assigned to the assignee of this application and are hereby expressly incorporated herein by reference in their entirety. Technical Field

[0003] Various aspects of this disclosure generally relate to wireless communication systems, and more specifically, various aspects of this disclosure relate to interference mitigation. Some aspects of the techniques discussed below can be implemented and provide null formation based on a self-interference measurement (SIM) configuration (e.g., redirecting at least one receive beam and / or at least one transmit beam of a first wireless device away from one or more external self-interference sources (e.g., clutter)). Background Technology

[0004] Wireless communication networks are widely deployed to provide various communication services, such as voice, video, packet data, messaging, and broadcasting. These wireless networks can be multiple-access networks capable of supporting multiple users by sharing available network resources. Such networks (which are typically multiple-access networks) support communication for multiple users by sharing available network resources.

[0005] A wireless communication network may include multiple base stations or nodes B capable of supporting communication for multiple user equipments (UEs). UEs may communicate with base stations via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the base station to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the base station.

[0006] A base station can send data and control information to a UE on the downlink and / or receive data and control information from a UE on the uplink. On the downlink, transmissions from the base station may encounter interference from neighboring base stations or other radio frequency (RF) transmitters. On the uplink, transmissions from the UE may encounter interference from other UEs communicating with neighboring base stations or from uplink transmissions from other RF transmitters. This interference can degrade performance on both the downlink and uplink.

[0007] As the demand for mobile broadband access continues to increase, the likelihood of network interference and congestion grows with more user devices (UEs) accessing long-range wireless communication networks and more short-range wireless systems being deployed in communities. Research and development continue to advance wireless technologies not only to meet the growing demand for mobile broadband access but also to advance and enhance the user experience of mobile communications. Summary of the Invention

[0008] The following outlines some aspects of this disclosure to provide a basic understanding of the techniques discussed. This outline is not a comprehensive summary of all intended features of this disclosure, nor is it intended to identify key or essential elements of all aspects of this disclosure, nor to describe the scope of any or all aspects of this disclosure. Its sole purpose is to present some concepts of one or more aspects of this disclosure in a generalized form as a prelude to the more detailed description given later.

[0009] Various null formation processes can be performed, including receive null formation processes (e.g., fixing and repeating the transmit beam, and using multiple receive beams associated with previously received beams for measurement), transmit null formation processes (e.g., using multiple transmit beams associated with previously transmitted beams, and fixing and repeating the receive beam), joint transmit and receive null formation processes (e.g., transmission and measurement over multiple self-interference (SI) resources with different selections of transmit and receive beams associated with a pair of previously transmitted and received beams (e.g., by a spatial QCL), or iterative null formation processes (e.g., starting with a receive or transmit null formation process and then switching to another null formation process type if necessary).

[0010] In some conventional wireless devices, as a baseline, multiple spatial QCL beams with different null formations (e.g., different side-lobe suppression and suppression amounts) are pre-configured and stored at the wireless device for any beam. The wireless device must traverse the list and perform measurements to find good candidates. In some designs, multiple beams can be created on-the-fly and based on previous measurements. In other designs, the wireless device may have already performed previous measurements (e.g., detecting clutter, their direction, and intensity) and can utilize that information to find / create an appropriate null formation configuration.

[0011] Various aspects of this disclosure relate to transmitting a self-interference measurement (SIM) configuration to a wireless device, in contrast to a wireless device implementing a pre-stored SIM configuration or its own autonomous and dynamically configured (i.e., on-the-fly) SIM configuration. Such an implementation can provide various technical advantages, including more accurate null formation, faster null formation, and network-coordinated null formation (e.g., the transmission portion of the null formation process can therefore be monitored by other wireless entities for location, power control, etc.).

[0012] In one aspect of this disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a wireless device (e.g., a UE or a BS). The wireless device may receive an instruction for a self-interference measurement (SIM) configuration associated with null formation at a first wireless device, the null formation being associated with redirecting at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof, away from one or more external self-interference sources; and may perform at least one null formation process according to the SIM configuration.

[0013] In one aspect of this disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a network device (e.g., a BS or core network component). The network device may determine a self-interference measurement (SIM) configuration associated with null formation at a wireless device, the null formation being associated with redirecting at least one receive beam and / or at least one transmit beam of the wireless device away from one or more external self-interference sources; and may send an instruction to the wireless device regarding the SIM configuration to facilitate at least one null formation process at the wireless device.

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

[0015] The features and technical advantages of the examples according to this disclosure have been outlined rather broadly above in order to provide a better understanding of the following specific embodiments. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily utilized as a basis for modifying or designing other structures for achieving the same purpose of this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and manner of operation) along with their associated advantages will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each drawing in the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to define limitations on the claims. Attached Figure Description

[0016] A further understanding of the nature and advantages of this disclosure can be achieved by referring to the following figures. In the figures, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by a dash following the reference numeral and a second reference numeral used to distinguish similar components. If only the first reference numeral is used in the specification, the description is applicable to any of the similar components having the same first reference numeral, regardless of the second reference numeral.

[0017] Figure 1 This is a block diagram illustrating details of a wireless communication system according to some aspects of this disclosure.

[0018] Figure 2 This is a block diagram conceptually illustrating the design of a base station and a UE configured according to some aspects of this disclosure.

[0019] Figure 3A and Figure 3B This is a diagram showing an example of an antenna array.

[0020] Figure 4A and Figure 4B An example of transmitting zero-point scanning is shown.

[0021] Figure 5 An exemplary wireless communication process according to one aspect of this disclosure is shown.

[0022] Figure 6 An exemplary wireless communication process according to one aspect of this disclosure is shown.

[0023] Figure 7 This is a conceptual data flow diagram illustrating the data flow between different components / assemblies in an exemplary device according to one aspect of this disclosure.

[0024] Figure 8 This is a diagram illustrating an example of a hardware implementation for a device employing a processing system.

[0025] Figure 9 This is a diagram illustrating another example of a hardware implementation for a device employing a processing system. Detailed Implementation

[0026] The specific embodiments described below with reference to the accompanying drawings are intended to describe various configurations and are not intended to limit the scope of this disclosure. Rather, these specific embodiments include detailed descriptions to provide a thorough understanding of the subject matter of the invention. It will be apparent to those skilled in the art that these specific details are not required in every situation, and in some instances, well-known structures and components are shown in block diagram form for clarity of representation.

[0027] This disclosure generally relates to providing or participating in communication between two or more wireless devices in one or more wireless communication systems (also referred to as wireless communication networks). In various embodiments, technologies and apparatus can be used in wireless communication networks such as Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, Single Carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, fifth-generation (5G) or new radio (NR) networks (sometimes referred to as "5G NR" networks / systems / devices), and other communication networks. As described herein, the terms "network" and "system" can be used interchangeably.

[0028] CDMA networks can implement radio technologies such as Universal Terrestrial Radio Access (UTRA) and CDMA2000. UTRA includes Wideband CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers the IS-2000, IS-95, and IS-856 standards.

[0029] TDMA networks can implement radio technologies such as GSM. 3GPP defines the standard for the GSM EDGE (Enhanced Data Rate GSM Evolution) Radio Access Network (RAN) (also referred to as GERAN). GERAN is the radio component of GSM / EDGE that connects base stations (e.g., Ater and Abis interfaces) to base station controllers (A interface, etc.). The radio access network represents a component of the GSM network through which telephone calls and packet data are routed from the Public Switched Telephone Network (PSTN) and the Internet to the subscriber's handset (also called the user terminal or user equipment (UE)) and from the subscriber's handset to the PSTN and the Internet. A mobile phone operator's network may include one or more GERANs, which, in the case of UMTS / GSM networks, may be coupled to the Universal Terrestrial Radio Access Network (UTRAN). The operator's network may also include one or more LTE networks, and / or one or more other networks. Different network types may use different Radio Access Technologies (RATs) and Radio Access Networks (RANs).

[0030] OFDMA networks can implement radio technologies such as Evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, and flash-OFDM. UTRA, E-UTRA, and GSM are part of the Universal Mobile Telecommunications System (UMTS). Specifically, Long Term Evolution (LTE) is a UMTS version using E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents from an organization called the 3rd Generation Partnership Project (3GPP), while cdma2000 is described in documents from an organization called 3rd Generation Partnership Project 2 (3GPP2). These various radio technologies and standards are known or under development. For example, the 3rd Generation Partnership Project (3GPP) is a collaboration between various telecommunications association groups that aims to define globally applicable third-generation (3G) mobile phone specifications. 3GPP Long Term Evolution (LTE) is a 3GPP project aimed at improving the Universal Mobile Telecommunications System (UMTS) mobile phone standard. 3GPP defines specifications for next-generation mobile networks, mobile systems, and mobile devices. This disclosure focuses on the evolution of wireless technologies from LTE, 4G, 5G, NR, and beyond, which features shared access to the radio spectrum between networks using new and different sets of radio access technologies or radio air interfaces.

[0031] 5G networks envision a wide range of deployments, spectrum, services, and devices that can be implemented using a unified OFDM-based air interface. To achieve these goals, in addition to developing new radio technologies for 5G NR networks, further enhancements to LTE and LTE-A are being considered. 5G NR will be able to scale to provide coverage for: (1) massive Internet of Things (IoT) with ultra-high density (e.g., ~1M nodes / km2), ultra-low complexity (e.g., ~tens of bits / second), ultra-low energy (e.g., ~10+ years of battery life), and deep coverage to reach challenging locations; (2) mission-critical control including strong security (to protect sensitive personal, financial, or confidential information), ultra-high reliability (e.g., ~99.9999% reliability), ultra-low latency (e.g., ~1ms), and a wide range of mobility or lack thereof; and (3) enhanced mobile broadband including extremely high capacity (e.g., ~10Tbps / km2), extreme data rates (e.g., multi-Gbps rates, 100+Mbps user experience rates), and deep cognition with advanced discovery and optimization.

[0032] 5G NR devices, networks, and systems can utilize optimized OFDM-based waveform characteristics. These characteristics can include: scalable parameter sets (numerology) and transmission time intervals (TTI); a shared, flexible framework for efficiently multiplexing services and characteristics using dynamic, low-latency Time Division Duplex (TDD) / Frequency Division Duplex (FDD) designs; and advanced radio technologies such as massive MIMO, robust millimeter-wave (mmWave) transmission, advanced channel decoding, and device-centric mobility. The scalability of parameter sets in 5G NR, along with the scaling of subcarrier spacing, efficiently addresses the operation of diverse services across diverse spectrum and deployments. For example, in various outdoor and macro coverage deployments implemented with FDD / TDD below 3 GHz, subcarrier spacing can occur at 15 kHz over bandwidths such as 1, 5, 10, and 20 MHz. For other various outdoor and small-cell coverage deployments with TDD above 3 GHz, subcarrier spacing can occur at 30 kHz over an 80 / 100 MHz bandwidth. For various other indoor broadband implementations, by using TDD on the unlicensed portion of the 5 GHz band, subcarrier spacing can occur at 60 kHz over a 160 MHz bandwidth. Finally, for various deployments transmitting mmWave components under TDD at 28 GHz, subcarrier spacing can occur at 120 kHz over a 500 MHz bandwidth.

[0033] 5G NR's scalable parameter set facilitates scalable TTIs for various latency and Quality of Service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmissions to begin at symbol boundaries. 5G NR also envisions self-contained integrated subframe designs that incorporate uplink / downlink scheduling information, data, and acknowledgments within the same subframe. These self-contained integrated subframes support communication in unlicensed or contention-based shared spectrum and enable flexible, per-cell-based adaptive uplink / downlink configuration to dynamically switch between uplink and downlink to meet current traffic needs.

[0034] For clarity, aspects of the devices and technologies will be described below with reference to example LTE implementations or in an LTE-centric manner, and LTE terminology may be used in various sections of the following description as illustrative examples; however, this description is not intended to be limited to LTE applications. In fact, some aspects of this disclosure relate to shared access to radio spectrum between networks using different radio access technologies or radio air interfaces (e.g., those of 5G NR).

[0035] Furthermore, it should be understood that in operation, wireless communication networks adapted according to the concepts herein can operate using any combination of licensed or unlicensed spectrum, depending on load and availability. Therefore, it will be apparent to those skilled in the art that the systems, apparatuses, and methods described herein can be applied to other communication systems and applications besides the specific examples provided.

[0036] While aspects and features are described herein by way of example, those skilled in the art will understand that additional implementations and use cases may arise in many different arrangements and scenarios. The innovations described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and package arrangements. For example, aspects and / or uses may arise via integrated chip aspects and / or other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / shopping devices, medical devices, AI-enabled devices, etc.). While some examples may or may not be specific to particular use cases or applications, broad applicability of the described innovations is possible. The scope of implementations can range from chip-level or modular components to non-modular, non-chip-level implementations, and further to aggregated, distributed, or OEM devices or systems incorporating one or more described aspects. In some practical contexts, devices incorporating the described aspects and features may also necessarily include additional components and features for the implementation and practice of the claimed and described aspects. The innovations described in this article are intended to be implemented in a wide variety of ways, including both large and small devices of different sizes, shapes and configurations, chip-level components, multi-component systems (e.g., RF chains, communication interfaces, processors), distributed deployments, end-user devices, and so on.

[0037] Figure 1 A wireless network 100 for communication is illustrated according to some aspects. The wireless network 100 may, for example, include a 5G wireless network. As those skilled in the art will appreciate, Figure 1 The components appearing in this network likely have corresponding parts in other network arrangements (including, for example, cellular network arrangements and non-cellular network arrangements (e.g., device-to-device, peer-to-peer, or self-organizing network arrangements)).

[0038] Figure 1The wireless network 100 shown includes multiple base stations 105 and other network entities. Base stations can be stations communicating with UEs and may also be referred to as evolved Node B (eNB), next-generation eNB (gNB), access points, etc. Each base station 105 can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to such a specific geographic coverage area of ​​a base station and / or a base station subsystem serving that coverage area, depending on the context in which the term is used. In the implementation of the wireless network 100 herein, base stations 105 may be associated with the same operator or different operators (e.g., the wireless network 100 may include multiple operator wireless networks) and may use one or more frequencies (e.g., licensed spectrum, unlicensed spectrum, or one or more bands of a combination thereof) from the same frequencies as neighboring cells to provide wireless communication. In some examples, an individual base station 105 or UE 115 may be operated by more than one network operating entity. In other examples, each base station 105 and UE 115 may be operated by a single network operating entity.

[0039] Base stations can provide communication coverage for macrocells or small cells (such as picocells or femtocells), and / or other types of cells. Macrocells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with service subscriptions to a network provider. Small cells (such as picocells) typically cover a relatively small geographic area and allow unrestricted access by UEs with service subscriptions to a network provider. Small cells (such as femtocells) also typically cover a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, allow restricted access by UEs associated with that femtocell (e.g., UEs in a closed subscriber group (CSG), UEs of users in that home, etc.). A base station used for a macrocell can be referred to as a macro base station. A base station used for a small cell can be referred to as a small cell base station, pico base station, femtocell, or home base station. Figure 1 In the example shown, base stations 105d and 105e are conventional macro base stations, while base stations 105a-105c are macro base stations with one of 3D, full-dimensional (FD), or massive MIMO enabled. Base stations 105a-105c utilize their higher-dimensional MIMO capabilities to increase coverage and capacity using 3D beamforming in both elevation and azimuth beamforming. Base station 105f is a small cell base station, which can be a home node or a portable access point. A base station can support one or more (e.g., two, three, four, etc.) cells.

[0040] Wireless Network 100 can support synchronous or asynchronous operation. For synchronous operation, base stations can have similar frame timings, and transmissions from different base stations can be roughly aligned in time. For asynchronous operation, base stations can have different frame timings, and transmissions from different base stations may not be aligned in time. In some scenarios, the network can be enabled or configured to handle dynamic switching between synchronous and asynchronous operation.

[0041] UE 115 is distributed across the wireless network 100, and each UE can be fixed or mobile. It should be understood that although mobile devices are generally referred to as User Equipment (UE) in standards and specifications issued by the 3rd Generation Partnership Project (3GPP), such devices may also be referred to by those skilled in the art as mobile station (MS), subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal (AT), mobile terminal, radio terminal, remote terminal, handheld device, terminal, user agent, mobile client, client, or any other suitable term. Within this document, a “mobile” device or UE does not necessarily have mobility capabilities and may be fixed. Some non-limiting examples of mobile devices include embodiments that may include one or more of UE 115, including mobile stations, cellular (phone) phones, smartphones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, laptops, personal computers (PCs), laptops, netbooks, smartbooks, tablets, and personal digital assistants (PDAs). Mobile devices can also be “Internet of Things” (IoT) or “Internet of Everything” (IoE) devices, such as automobiles or other transportation vehicles, satellite radios, Global Positioning System (GPS) devices, logistics controllers, drones, multi-rotor aircraft, quadcopters, smart energy or security devices, solar panels or solar arrays, urban lighting, water supply or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices, such as glasses, wearable cameras, smartwatches, health or fitness trackers, mammalian implantable devices, posture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, game consoles, etc.; and digital home or smart home devices, such as home audio, video and multimedia equipment, appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, a UE can be a device that includes a Universal Integrated Circuit Card (UICC). In another aspect, a UE can be a device that does not include a UICC. In some aspects, a UE that does not include a UICC can also be referred to as an IoE device. Figure 1The UEs 115a-115d shown are examples of mobile smartphone-type devices accessing the wireless network 100. The UE can also be a machine specifically configured for connected communications, including machine-type communication (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT), etc. Figure 1 The UE 115e-115k shown is an example of various machines configured for accessing communications of the wireless network 100.

[0042] Mobile devices (such as UE 115) can communicate with any type of base station (whether macro base station, pico base station, femto base station, relay, etc.). Figure 1 In this context, a lightning bolt (e.g., a communication link) indicates a radio transmission between the UE and a serving base station (a serving base station is a base station designated to serve the UE on the downlink and / or uplink), or a desired transmission between base stations, and a backhaul transmission between base stations. Backhaul communication between base stations of the wireless network 100 can occur using wired and / or wireless communication links.

[0043] In the operation of wireless network 100, base stations 105a-105c use 3D beamforming and coordinated spatial technologies (such as Coordinated Multipoint (CoMP) or multi-connectivity) to serve UEs 115a and 115b. Macro base station 105d performs backhaul communication with base stations 105a-105c and small cell base station 105f. Macro base station 105d also transmits multicast services subscribed to and received by UEs 115c and 115d. Such multicast services may include mobile television or streaming video, or may include other services for providing community information (such as weather emergencies or alerts, such as Amber Alerts or Grey Alerts).

[0044] The wireless network 100 supports mission-critical communication with highly reliable and redundant links for mission-critical devices such as UE 115e, which is a drone. Redundant communication links with UE 115e include those from macro base stations 105d and 105e, and small cell base station 105f. Other machine-type devices (such as UE 115f (thermometer), UE 115g (smart meter), and UE 115h (wearable device)) can communicate directly with base stations (such as small cell base station 105f and macro base station 105e) via the wireless network 100, or in a multi-hop configuration via the wireless network 100 by communicating with another user device relaying its information to the network (e.g., UE 115f relays temperature measurement information to smart meter UE 115g, which is then reported to the network via small cell base station 105f). Wireless network 100 can also provide additional network efficiency through dynamic, low-latency TDD / FDD communication, such as in vehicle-to-vehicle (V2V) mesh networks between UEs 115i-115k communicating with macro base station 105e.

[0045] Figure 2 A block diagram showing the design of base station 105 and UE 115 is provided. Figure 1 Any one of the base stations and one of the UEs. For restricted association scenarios (as mentioned above), base station 105 can be... Figure 1 In the small cell base station 105f, UE 115 can be UE 115c or 115D operating within the service area of ​​base station 105f. To access small cell base station 105f, UE 115 can be included in the list of accessible UEs of small cell base station 105f. Base station 105 can also be some other type of base station. Figure 2 As shown, base station 105 may be equipped with antennas 234a to 234t, and UE 115 may be equipped with antennas 252a to 252r for facilitating wireless communication.

[0046] At base station 105, transmitting processor 220 can receive data from data source 212 and control information from controller / processor 240. This control information can be used for Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ (Automatic Repeat Request) Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), MTC Physical Downlink Control Channel (MPDCCH), etc. Data can be used for PDSCH, etc. Transmitting processor 220 can process (e.g., encode and map symbols) the data and control information to obtain data symbols and control symbols respectively. Transmitting processor 220 can also generate reference symbols, such as reference symbols for primary synchronization signal (PSS) and secondary synchronization signal (SSS), and cell-specific reference signals. The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, and / or reference symbols where applicable, and can provide the output symbol stream to modems 232a to 232t. Each modem 232 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modem 232 can additionally or alternatively process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from modems 232a to 232t can be transmitted via antennas 234a to 234t, respectively. Base station 105 may include a communication unit 246 and communicate with network controller 200 (e.g., RAN or core network component) via the communication unit 246. Network controller 200 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0047] At UE 115, antennas 252a to 252r can receive downlink signals from base station 105 and can respectively provide the received signals to modems 254a to 254r. Each modem 254 can adjust (e.g., filter, amplify, downconvert, and digitize) its respective received signal to obtain an input sample. Each modem 254 can further process the input sample (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from modems 254a to 254r, perform MIMO detection on these received symbols where applicable, and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate, deinterleave, and decode) these detected symbols, provide the decoded data for UE 115 to data sink 260, and provide the decoded control information to controller / processor 280.

[0048] On the uplink, at UE 115, the transmitting processor 264 can receive and process data from data source 262 (e.g., data for the Physical Uplink Shared Channel (PUSCH)) and control information from controller / processor 280 (e.g., control information for the Physical Uplink Control Channel (PUCCH)). The transmitting processor 264 can also generate reference symbols for reference signals. Symbols from the transmitting processor 264 can be pre-decoded by the TX MIMO processor 266, where applicable, further processed by modems 254a to 254r (e.g., for SC-FDM, etc.), and transmitted to base station 105. At base station 105, uplink signals from UE 115 can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236, where applicable, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 115. The receiver processor 238 can provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240.

[0049] Controllers / processors 240 and 280 can respectively direct operations at base station 105 and UE 115. Controllers / processors 240 and / or other processors and modules at base station 105 and / or controllers / processors 280 and / or other processors and modules at UE 115 can perform or direct the execution of various processes used in the techniques described herein, such as performing or directing... Figures 5-6 The execution and / or other processes used in the techniques described herein are shown. Memory 242 and 282 may store data and program code for base station 105 and UE 115, respectively. Scheduler 244 may schedule the UE for data transmission on downlink and / or uplink.

[0050] Wireless communication systems operated by different network operating entities (e.g., network operators) can share spectrum. In some instances, a network operating entity can be configured to use an entire designated shared spectrum for at least one time period, and then another network operating entity can use the same entire designated shared spectrum for a different time period. Thus, to allow network operating entities to use the entire designated shared spectrum and to mitigate interference communications between different network operating entities, specific resources (e.g., time) can be allocated and distributed to different network operating entities for specific types of communication.

[0051] For example, specific time resources can be allocated to a network operator, reserved for exclusive communication using the entire shared spectrum. Other time resources can also be allocated to a network operator, giving it priority over other network operators in using the shared spectrum for communication. These time resources, preferentially allocated to the network operator, can be utilized by other network operators on an opportunity basis if the preferential network operator does not use them. Additional time resources can be allocated to any network operator for use on an opportunity basis.

[0052] Access to shared spectrum and arbitration of time resources among different network operators can be centrally controlled by a single entity, determined autonomously through a predefined arbitration scheme, or dynamically determined based on the interaction between wireless nodes of network operators.

[0053] In some scenarios, UE 115 and base station 105 may operate in a shared radio spectrum band, which may include licensed or unlicensed (e.g., contention-based) spectrum. In the unlicensed frequency portion of the shared radio spectrum band, UE 115 or base station 105 may conventionally perform a medium-sensing procedure to compete for spectrum access. For example, UE 115 or base station 105 may perform a Listen-Before-Talk (LBT) procedure (such as Clear Channel Assessment (CCA)) before communication to determine if a shared channel is available. CCA may include an energy detection procedure to determine if any other active transmissions exist. For example, the device may infer that a change in the Received Signal Strength Indicator (RSSI) of the power meter indicates that the channel is occupied. Specifically, signal power concentrated in a specific bandwidth and exceeding a predetermined noise floor may indicate another wireless transmitter. CCA may also include the detection of a specific sequence indicating channel usage. For example, another device may transmit a specific preamble before transmitting a data sequence. In some cases, the LBT process may include a wireless node acting as a collision-prone agent to adjust its own backoff window based on the amount of energy detected on the channel and / or ACK / NACK feedback on packets it transmits.

[0054] refer to Figure 3A and Figure 3B The image shows an example of an antenna array. Figure 3A This corresponds to a diagram illustrating a complex antenna array. The antenna array can be suitable for millimeter-wave communication, full-duplex operation (e.g., simultaneous transmission and reception), or both. Figure 3AIn the example, the antenna array has transmit (TX) and receive / receive (RX) antenna panels or elements that are separate and isolated from each other. For illustration purposes, the antenna panels are spaced apart from each other and have a structure that blocks the transmission path between two antenna panels. In some implementations and operating modes, a pair of TX and RX antenna panels / elements can transmit and receive data simultaneously, for example, by at least partially overlapping in time, frequency, or both.

[0055] Figure 3B Corresponding to what is shown in Figure 3A A diagram showing simultaneous operation and clutter interference on one side of the antenna array. Figure 3B In this configuration, the antenna elements of the TX and / or RX antenna panels form transmission nulls to reduce interference. Transmission nulls correspond to the intentional suppression of the antenna response (such as reduced, lower, or no energy sidelobes) in one or more specific directions. Figure 3B As shown, the antenna array of node N1 operates in full-duplex mode with node N2. The outgoing and incoming transmissions have a specific principal direction (e.g., spatial direction) or focus of the radiated energy from the antenna. To generate such a principal direction (e.g., spatial angle), the antenna panel also emits sidelobes or radiated energy in an additional direction fanned out from the principal direction. This sidelobe energy can cause interference. Figure 3B As shown in the example, sidelobe energy or signals can be reflected from objects such as C1 and C2. When the reflected transmission sidelobe energy is directed back to the RX antenna panel (which is activated to receive RX transmissions), the transmission sidelobe energy causes interference known as clutter interference (or clutter echo). This reflected transmission energy can cause incoming transmissions from node N2 to become cluttered, distorted, or spoofed.

[0056] In conventional operations such as submillimeter-wave operation and frequencies, clutter interference is generally not the largest cause of self-interference (e.g., reduced SINR). Typically, array leakage is the largest contributor to self-interference. However, in millimeter-wave operation and frequencies, array leakage (e.g., direct leakage) has been found to be lower, and clutter interference (e.g., echoes or indirect interference) has been found to cause significant or major amounts of self-interference. For example, the size of antenna elements used for millimeter-wave frequencies and the directional nature of millimeter-wave operation reduce array leakage. Reducing and mitigating clutter interference is a key challenge for achieving full-duplex operation in millimeter waves. One proposed technique for reducing clutter interference involves measuring interference at one node, reporting the measured interference to another node, and making determinations based on the measurements. This “closed-loop” clutter mitigation technique can be adapted to certain conditions and utilizes additional processing and signaling overhead. Open-loop clutter mitigation techniques have also been proposed.

[0057] Figure 4A and Figure 4B An example of transmitting zero-point scanning is shown. Figure 4AThe first transmission zero point is shown, and Figure 4B This shows a second and different transmission zero. In Figure 4A In this process, the transmitting antenna generates a first transmission null, which reduces or eliminates clutter echoes or feedback (clutter reflections) of object C1, such as reducing or eliminating the generation of clutter reflections.

[0058] exist Figure 4B In this process, the transmitting antenna generates a second transmission null, which reduces or eliminates clutter echoes or feedback (clutter reflections) from object C2. For example... Figure 4A and Figure 4B As shown, as a supplement or alternative, the receiving antenna can also form a transmission null (e.g., a receiving null). Figure 4A and Figure 4B In the example shown, the receiving antenna transmission null (e.g., the receiving null) also reduces or eliminates the pickup of clutter reflections.

[0059] A radiation pattern (or antenna beam pattern) includes a main lobe, side lobes, and nulls. A null is the point in the radiation pattern (or antenna beam pattern) where the minimum transmit or receive power exists (e.g., between lobes, such as...). Figures 4A-4B (as shown). In some designs, wireless devices can attempt to reduce or eliminate self-interference by performing multiple transmissions via the transmitting antenna while simultaneously measuring the level of interference caused by the transmission at the receiving antenna, as described above. Figures 4A-4B The discussion focuses on various null-forming processes that can be performed to align nulls, including receive null-forming processes (e.g., fixing and repeating the transmit beam, and using multiple receive beams associated with previously received beams for measurement), transmit null-forming processes (e.g., using multiple transmit beams associated with previously transmitted beams, and fixing and repeating the receive beam), joint transmit and receive null-forming processes (e.g., transmission and measurement over multiple self-interference (SI) resources having different selections of transmit and receive beams associated with a pair of previously transmitted and received beams (e.g., with a spatial QCL), or iterative null-forming processes (e.g., starting with a receive or transmit null-forming process and then switching to another null-forming process type if necessary). In other words, a transmit null can be tuned (or formed) to align with a receive lobe (e.g., a main lobe or a side lobe), a receive null can be tuned (or formed) to align with a transmit lobe (e.g., a main lobe or a side lobe), or both. Typically, one or more null-forming processes can be used to form one or more nulls to avoid interference (e.g., in this case, aligning the null with a self-interference source that can reduce or eliminate the interference on the transmitting side, the receiving side, or both).

[0060] In some conventional wireless devices, as a baseline, multiple spatial QCLs with different null formations (e.g., different sidelobe suppression and suppression amounts) are pre-configured and stored at the wireless device for any beam. The wireless device must traverse the list and perform measurements to find good candidates. In some designs, multiple beams can be created in operation and based on previous measurements. In other designs, the wireless device may have already performed previous measurements (e.g., detected clutter, their direction, and intensity) and can use that information to find / create an appropriate null formation configuration.

[0061] Various parameters can be configured during null formation, such as transmit antenna beam pattern, receive beam pattern, number of transmission repetitions per beam, signal type (e.g., SRS) and / or configuration (e.g., comb-2, comb-4, etc.), transmit power level, beam scan pattern, etc. As used herein, any parameters associated with a wireless device attempting to measure self-interference can be broadly characterized as part of the self-interference measurement (SIM) configuration. Wireless devices typically determine their SIM configuration independently, for example, via a pre-stored SIM configuration or via an autonomous and dynamically configured (i.e., in-operation) SIM configuration. Because such SIM configurations are incompatible with other entities, transmissions associated with the conventional null formation process cannot be used for other purposes (e.g., for positioning, for power control, etc.), and the SIM configuration used by a particular wireless device may be suboptimal (e.g., the network may possess knowledge unknown to the wireless device that could be used to generate a SIM configuration that will better align or form nulls to further reduce self-interference).

[0062] Compared to wireless devices implementing pre-stored SIM configurations or their own autonomous and dynamically configured (i.e., in-service) SIM configurations, aspects of this disclosure relate to transmitting SIM configurations to wireless devices. Such an implementation can provide various technical advantages, including more accurate null formation, faster null formation, and network-coordinated null formation (e.g., the transmission portion of the null formation process can thus be monitored by other wireless entities for positioning, power control, etc.).

[0063] Figure 5 An exemplary process 500 for wireless communication according to one aspect of this disclosure is shown. Figure 5 The process 500 is performed by a first wireless device that may correspond to BS105 or UE 115.

[0064] At 502, a first radio device (e.g., one or more antennas 252a…252r, modems 254a…254r, TX MIMO processor 266, transmit processor 264, etc., or antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmit processor 220, controller / processor 240, etc.) optionally sends a request for Self-Interference Measurement (SIM) configuration to the network entity. In some designs, the transmission at 502 may be implemented via L1, L2, or L3 RRC signaling. In some designs, the transmission at 502 is optional because the network entity may alternatively push the SIM configuration to UE 115 without an explicit request. In an example where the first radio device corresponds to BS105, the optional transmission may correspond to backhaul communication to a separate network entity (e.g., core network components, etc.) or data transfer from one logical component of BS105 to another logical component of BS105 (e.g., internal inter-layer communication at BS105). In one example, the request at 502 may specify certain desired attributes in the SIM configuration (e.g., the amount of SIM resources required based on the number of transmit and / or receive beams in the corresponding nulling codebook of the first wireless device, whether the SIM configuration should be associated with transmit, receive, iterative, or joint nulling processes, etc.).

[0065] At 504, a first wireless device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, etc.) receives an indication of a SIM configuration associated with null formation at the first wireless device, which is associated with redirecting at least one receive beam, at least one transmit beam, or a combination thereof of the first wireless device away from one or more external self-interference sources. In some designs, the received indication of the SIM configuration includes an indication of the SIM configuration being associated with null formation. In some designs, the SIM configuration specifies a transmit configuration for at least one null formation process, a receive configuration for at least one null formation process, or a combination thereof. In some designs, the SIM configuration instructs the first wireless device to perform a receive null formation process, a transmit null formation process, or a combination thereof. In some designs, the indication received at 504 includes the SIM configuration, while in other designs, the indication received at 504 includes a reference to the SIM configuration (e.g., an index that triggers a SIM configuration lookup operation at the first radio device). In an example where the first radio device corresponds to BS105, the reception at 504 may correspond to backhaul communication from a separate network entity (e.g., a core network component, etc.) or data transfer from one logical component of BS105 to another logical component of BS105 (e.g., internal inter-layer communication at BS105). In some designs, the SIM configuration may specify a transmit configuration (e.g., resources for transmitting multiple signals, such as SRS resources in the case of UL beamforming) and / or a receive configuration (e.g., resources for measurements thereon and associated receive beamforming).

[0066] At 506, in some designs, at least one null-forming process may include a transmit null-forming process, which includes transmitting multiple signals on multiple different transmit beams (e.g., where the multiple different transmit beams are spatially QCLed), and measuring the multiple signals on the same receive beam. In this case, one or more resources and / or configurations associated with the transmission of the multiple signals may be specified by the SIM configuration, or may be determined independently of the SIM configuration at the first wireless device. In a scenario where the first wireless device determines one or more resources and / or configurations associated with transmission independently of the SIM configuration, at 506, the first wireless device (e.g., one or more antennas 252a…252r, modems 254a…254r, TX MIMO processor 266, transmit processor 264, etc., or one or more antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmit processor 220, controller / processor 240, etc.) may optionally transmit an indication of at least one of the one or more resources or configurations associated with the transmission of multiple signals. As an example, this indication may coordinate the transmission of multiple signals with at least one other wireless device, enabling the other wireless device to perform actions such as measuring (e.g., for power control, for positioning, etc.) one or more signals. Therefore, it is not necessary to strictly perform a null-forming process for null-forming purposes, but rather the null-forming process can be used opportunistically to facilitate other functions.

[0067] At point 508, the first wireless device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, etc., or one or more antennas 252a…252r, modems 254a…254r, TX MIMO processor 266, transmitter processor 264, etc., or one or more antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmitter processor 220, controller / processor 240, etc.) performs at least one zero-point formation process according to the SIM configuration. The at least one zero-point formation process may include a receive zero-point formation process, a transmit zero-point formation process, or a combination thereof (e.g., an iterative or combined receive / transmit zero-point formation process).

[0068] At 510, a first wireless device (e.g., one or more antennas 252a…252r, modems 254a…254r, TX MIMO processor 266, transmit processor 264, etc., or one or more antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmit processor 220, controller / processor 240, etc.) optionally sends a request to a network entity (e.g., a gNB) for resources to report results associated with at least one nulling process. For example, the results may include measurement information associated with the nulling process, or selected sidelobe or beam configurations based on the nulling process. In some designs, optional transmissions at 510 are triggered periodically or semi-persistently in response to requests from the network entity, in an event-triggered manner (e.g., results indicating a new beam configuration for the first wireless device, or whether a good transmit and receive beam pairing has been identified based on the nulling process), or a combination thereof.

[0069] At 512, the first wireless device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, etc.) optionally receives resource configurations for reporting results associated with at least one zero-point formation process. In some designs, the optional reception at 512 is triggered periodically or semi-persistently in response to requests from network entities, in an event-triggered manner (e.g., results indicating a new beam configuration for the first wireless device, etc.), or a combination thereof.

[0070] At 514, a first wireless device (e.g., one or more antennas 252a…252r, modems 254a…254r, TX MIMO processor 266, transmit processor 264, etc., or one or more antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmit processor 220, controller / processor 240, etc.) optionally reports one or more results associated with at least one null formation process to a network entity. In some designs, the optional report at 514 is triggered periodically or semi-persistently in response to a request from a network entity, in an event-triggered manner (e.g., one or more results indicating a new beam configuration for the first wireless device, etc.), or a combination thereof. In some designs, the report at 514 may indicate the type of one or more null formation processes performed (e.g., transmit, receive, iterative, or joint null formation processes).

[0071] Figure 6 An exemplary process 600 for wireless communication according to one aspect of this disclosure is shown. Figure 6 The process 600 is performed by a network device, which may correspond to BS105 and is a separate network entity, such as network controller 200.

[0072] At 602, a network device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, or communication unit 246, or controller / processor 240, or communication unit 294, etc.) optionally sends a request for self-interference measurement (SIM) configuration. In some designs, the communication at 602 can be implemented via L1, L2, or L3 RRC signaling. In some designs, the transmission at 602 is optional because the network device can alternatively push the SIM configuration to UE 115 without an explicit request. In an example where the network device corresponds to BS105, the optional request may correspond to backhaul communication to a separate network entity (e.g., a core network component, such as network controller 200, etc.) or data transfer from one logical component of BS105 to another logical component of BS105 (e.g., inter-layer communication within BS105). In one example, the request at 602 may specify certain desired attributes in the SIM configuration (e.g., the amount of SIM resources required depending on the number of transmit and / or receive beams in the corresponding nulling codebook of the first wireless device, whether the SIM configuration should be associated with transmit, receive, iterative, or joint nulling processes, etc.).

[0073] At 604, a network device (e.g., controller / processor 240, controller / processor 290, etc.) determines a SIM configuration associated with nulling at a first wireless device, which is associated with redirecting at least one receive beam, at least one transmit beam, or a combination thereof from one or more external self-interference sources. In some designs, the SIM configuration is configured to instruct the first wireless device to perform a receive nulling process, a transmit nulling process, or a combination thereof. In an example where the first wireless device corresponds to BS105, the transmission at 604 may correspond to backhaul communication from a separate network entity (e.g., a core network component, such as network controller 200, etc.) or data transfer from one logical component of BS105 to another logical component of BS105 (e.g., internal inter-layer communication at BS105). In some designs, the SIM configuration may specify a transmit configuration (e.g., resources for multiple signals transmitted, such as SRS resources in the case of UL beamforming) and / or a receive configuration (e.g., resources for measurements thereon and associated receive beamforming).

[0074] At 606, a network device (e.g., one or more antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmit processor 220, controller / processor 240, or communication unit 294, etc.) sends an indication of SIM configuration to the first wireless device to facilitate at least one zero-point formation process at the first wireless device. In some designs, the transmitted indication of SIM configuration includes an indication of SIM configuration associated with zero-point formation. In some designs, the SIM configuration specifies a transmit configuration for at least one zero-point formation process, a receive configuration for at least one zero-point formation process, or a combination thereof. In some designs, the indication transmitted at 606 includes the SIM configuration, while in other designs, the indication transmitted at 606 includes a reference to the SIM configuration (e.g., an index that triggers a SIM configuration lookup operation at the first wireless device).

[0075] At 608, in some designs, at least one null-forming process may include a transmit null-forming process, which includes (at the first wireless device) transmitting multiple signals on multiple different transmit beams (e.g., where the multiple different transmit beams are spatially QCLed), and measuring the multiple signals on the same receive beam. In this case, one or more resources and / or configurations associated with the transmission of the multiple signals may be specified by the SIM configuration, or may be determined at the first wireless device independently of the SIM configuration. In a scenario where the one or more resources and / or configurations associated with transmission are determined independently of the SIM configuration at the first wireless device, at 608, a network device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, or communication unit 246, or controller / processor 240, or communication unit 294, etc.) may optionally receive an indication of at least one of the one or more resources or configurations associated with the transmission of multiple signals (at the first wireless device). As an example, this indication may coordinate the transmission of multiple signals with at least one other wireless device, enabling the other (one or more) wireless devices to perform actions such as measuring (e.g., for power control, for positioning, etc.) one or more signals. Therefore, it is not necessary to strictly perform a null-forming process for null-forming purposes, but rather the null-forming process can be used opportunistically to facilitate other functions.

[0076] At 610, a network device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, or communication unit 246, or controller / processor 240, or communication unit 294, etc.) optionally receives from the first wireless device a request for resources to report results associated with at least one null formation process. For example, the results may include measurement information associated with the null formation process, or based on a selected sidelobe or beam configuration of the null formation process. In some designs, optional reception at 610 is triggered periodically or semi-persistently in response to requests from network entities, in an event-triggered manner (e.g., one or more results indicating a new beam configuration for a first wireless device, whether a good transmit and receive beam pair is identified based on one or more null-forming processes), or a combination thereof.

[0077] At 612, the first wireless device (e.g., one or more antennas 234a…234r, modems 232a…232r, TX MIMO processor 230, transmit processor 220, controller / processor 240, or communication unit 294, etc.) optionally transmits resource configurations for reporting results associated with at least one zero-point formation process. In some designs, the optional transmission at 612 is triggered periodically or semi-persistently in response to requests from network entities, in an event-triggered manner (e.g., results indicating a new beam configuration for the first wireless device, etc.), or a combination thereof.

[0078] At 614, a network device (e.g., one or more antennas 252a…252r, modems 254a…254r, MIMO detector 256, receiver processor 258, etc., or one or more antennas 234a…234r, modems 232a…232r, MIMO detector 236, receiver processor 238, or communication unit 246, or controller / processor 240, or communication unit 294, etc.) optionally receives one or more reports of one or more results associated with at least one null formation process. In some designs, optional reception at 614 is triggered periodically or semi-persistently in response to a request from a network entity, in an event-triggered manner (e.g., one or more results indicating a new beam configuration for a first wireless device, etc.), or a combination thereof. In some designs, one or more reports at 614 may indicate the type of one or more null formation processes performed (e.g., transmit, receive, iterative, or joint null formation processes).

[0079] refer to Figures 5-6 In some designs, as described above, at least one null-forming process may include a receive null-forming process. The receive null-forming process may include transmitting multiple signals by a first wireless device on the same transmit beam, and measuring multiple signals by the first wireless device on multiple different receive beams. In one example, the multiple different receive beams may be spatial QCLs (e.g., QCL type D). In some designs, the SIM configuration may specify the number of transmission repetitions. In some designs, the SIM configuration may specify the configuration of the spatial QCLs for the multiple different receive beams, while in other designs, the first wireless device may independently determine the receive configuration for the multiple different receive beams.

[0080] refer to Figures 5-6In some designs, as described above, at least one null-forming process may include a transmit null-forming process. The transmit null-forming process may include transmitting multiple signals by a first wireless device on multiple different transmit beams, and measuring multiple signals by the first wireless device on the same receive beam. In one example, the multiple different transmit beams may be spatial QCLs (e.g., QCL type D). In some designs, the SIM configuration may specify resources associated with the multiple different transmit beams (e.g., DL transmit beams or UL transmit beams such as SRS), while in other designs, the first wireless device may independently determine the transmit configuration for the multiple different transmit beams.

[0081] refer to Figures 5-6 In some designs, as described above, at least one zero-forming process may include a transmit zero-forming process and a receive zero-forming process. In some designs, the transmit and receive zero-forming processes are performed iteratively (e.g., one after another, where a subsequent zero-forming process is conditionally performed based on one or more results from the first zero-forming process). For example, if the initial zero-forming process provides sufficient results, another zero-forming process may not be necessary. In other designs, the transmit and receive zero-forming processes are performed jointly (e.g., simultaneously). This is based on the joint zero-forming process (e.g., transmission and measurement over multiple self-interference (SI) resources having different choices of transmit and receive beams associated with a pair of previous transmit and receive beams (e.g., spatial QCLs).

[0082] Figure 7 This is a conceptual data flow diagram 700 illustrating the data flow between different components / assemblies in exemplary devices 702 and 780 according to one aspect of this disclosure. Device 702 may be a wireless device (e.g., BS105 or UE 115) communicating with device 780, and device 780 may be a network device (e.g., BS105, such as a different logical component of BS105 in a scenario where wireless device 702 corresponds to BS105 or another network entity (such as network controller 200)).

[0083] Device 702 includes a transmission component 704, which can correspond to, for example... Figure 2The transmitter circuitry in the BS105 or UE 115 depicted includes a controller / processor 280, one or more antennas 252a…252r, one or more modems 254a…254r, a TX MIMO processor 266, a TX processor 264, or one or more antennas 234a…234r, modems 232a…232r, a TX MIMO processor 230, a transmit processor 220, a controller / processor 240, etc. The device 702 also includes a null-forming component 706, which can correspond to, for example... Figure 2 The processor circuitry in the BS105 or UE 115 shown includes controller / processor 240, controller / processor 280, etc. The device 702 also includes a receiving component 708, which can correspond to, for example... Figure 2 The receiver circuitry in the BS105 or UE 115 shown includes a controller / processor 280, one or more antennas 252a…252r, one or more modems 254a…254r, a MIMO detector 256, an RX processor 258, or one or more antennas 234a…234r, modems 232a…232r, a MIMO detector 236, a receiver processor 238, etc.

[0084] The device 780 includes a receiving component 782, which can correspond to, for example... Figure 2 The receiver circuitry in the BS105 or network controller 200 depicted includes a controller / processor 240, one or more antennas 234a…234r, one or more modems 232a…232r, a MIMO detector 236, an RX processor 238, a communication unit 246, or a communication unit 294. The device 780 also includes a SIM configuration component 784, which can correspond to, for example… Figure 2 The processor circuitry in the BS105 or network controller 200 depicted includes controller / processor 240 or controller / processor 290. The device 780 also includes a transmission component 786, which can correspond to, for example... Figure 2 The transmission circuitry in the BS105 or network controller 200 depicted includes, for example, a controller / processor 240, one or more antennas 234a…234r, one or more modems 232a…232r, a TX MIMO processor 230, a TX processor 220, a communication unit 246, or a communication unit 294.

[0085] refer to Figure 7Optionally, the transmission component 704 sends a SIM configuration request to the receiving component 782. The SIM configuration component 784 determines the SIM configuration, and the transmission component 786 sends an indication of the SIM configuration to the receiving component 708, which is relayed to the zero-point forming component 706. Optionally, the zero-point forming component 706 sends a zero-point forming resource / configuration indication associated with the zero-point forming process to the receiving component 782 via the transmission component 704, and the device 780 may optionally perform measurements based on the resource / configuration indication. The device 780 may also optionally send a report resource request to the receiving component 782, and the device 780 may respond using the report resource configuration sent to the receiving component 708 via the transmission component 786. The transmission component 704 may optionally send one or more zero-point forming results via the report resource configuration.

[0086] One or more components of devices 702 and 780 can perform Figures 5-6 Each box in the algorithm's box in the aforementioned flowchart. Therefore, Figures 5-6 Each block in the aforementioned flowchart can be executed by a component, and devices 702 and 780 can include one or more of those components. A component can be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for processor implementation, or some combination thereof.

[0087] Figure 8 Figure 800 illustrates an example of a hardware implementation of a device 702 employing a processing system 814. The processing system 814 can be implemented using a bus architecture typically represented by a bus 824. Depending on the specific application and overall design constraints of the processing system 814, the bus 824 may include any number of interconnect buses and bridges. The bus 824 links together various circuits including (represented by processor 804, components 704, 706, and 708, and computer-readable medium / memory 806) one or more processors and / or hardware components. The bus 824 may also link various other circuits, such as timing sources, peripherals, regulators, and power management circuits, which are well known in the art and therefore will not be described further.

[0088] Processing system 814 may be coupled to transceiver 810. Transceiver 810 is coupled to one or more antennas 820. Transceiver 810 provides components for communicating with various other devices via a transmission medium. Transceiver 810 receives signals from one or more antennas 820, extracts information from the received signals, and provides the extracted information to processing system 814, specifically receiving component 708. Additionally, transceiver 810 receives information from processing system 814 (specifically transmission component 704) and generates signals to be applied to one or more antennas 820 based on the received information. Processing system 814 includes processor 804 coupled to computer-readable medium / memory 806. Processor 804 is responsible for general processing, including executing software stored on computer-readable medium / memory 806. When executed by processor 804, the software causes processing system 814 to perform the various functions described above for any particular device. Computer-readable medium / memory 806 may also be used to store data manipulated by processor 804 during software execution. Processing system 814 also includes at least one of components 704, 706, and 708. A component may be a software component running in processor 804, a software component residing in / stored in computer-readable medium / memory 806, one or more hardware components coupled to processor 804, or some combination thereof. Figure 2 The components of BS105 or UE 115 may include at least one of memory 242 or 282, and / or TX processor 220 or 264, RX processor 238 or 258, and controller / processor 240 or 280.

[0089] In one configuration, the apparatus 702 for wireless communication (e.g., UE or BS) includes: components for receiving an indication of a self-interference measurement (SIM) configuration associated with null formation at a first wireless device, the null formation being associated with redirecting at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof, away from one or more external self-interference sources; and components for performing at least one null formation process according to the SIM configuration.

[0090] The aforementioned components may be one or more of the aforementioned components in device 702 and / or processing system 814 of device 702, configured to perform the functions described therein. As described above, processing system 814 may include at least one of memory 242 or 282, and / or TX processor 220 or 264, RX processor 238 or 258, and controller / processor 240 or 280.

[0091] Figure 9Figure 900 illustrates an example of a hardware implementation of a device 780 employing a processing system 914. The processing system 914 can be implemented using a bus architecture typically represented by a bus 924. Depending on the specific application and overall design constraints of the processing system 914, the bus 924 may include any number of interconnect buses and bridges. The bus 924 links together various circuits including (represented by processor 904, components 782, 784, and 786, and computer-readable medium / memory 906) one or more processors and / or hardware components. The bus 924 may also link various other circuits, such as timing sources, peripherals, regulators, and power management circuits, which are well known in the art and therefore will not be described further.

[0092] Processing system 914 may be coupled to transceiver 910. Transceiver 910 is coupled to one or more antennas 920. Transceiver 910 provides components for communicating with various other devices via a transmission medium. Transceiver 910 receives signals from one or more antennas 920, extracts information from the received signals, and provides the extracted information to processing system 914 (specifically, receiving component 782). Additionally, transceiver 910 receives information from processing system 914 (specifically, transmitting component 786) and generates signals to be applied to one or more antennas 920 based on the received information. Processing system 914 includes processor 904 coupled to computer-readable medium / memory 906. Processor 904 is responsible for general processing, including executing software stored on computer-readable medium / memory 906. When executed by processor 904, the software causes processing system 914 to perform the various functions described above for any particular device. Computer-readable medium / memory 906 may also be used to store data manipulated by processor 904 during software execution. Processing system 914 also includes at least one of components 782, 784, and 786. A component may be a software component running in processor 904, a software component residing in / stored in computer-readable medium / memory 906, one or more hardware components coupled to processor 904, or some combination thereof. Figure 2 The BS105 or network controller 200 components may include at least one of the following: memory 242 or 292, and / or TX processor 220, RX processor 238, or communication unit 294, and controller / processor 240 or 290.

[0093] In one configuration, apparatus 780 (e.g., BS or core network equipment) includes: components for determining a self-interference measurement (SIM) configuration associated with null formation at a first wireless device, the null formation being associated with redirecting at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof, away from one or more external self-interference sources; and components for sending an instruction to the first wireless device on the SIM configuration to facilitate at least one null formation process at the first wireless device.

[0094] The aforementioned components may be one or more of the aforementioned components in device 780 and / or processing system 914 of device 780, configured to perform the functions described therein. As described above, processing system 914 may include memory 242 or 292, and / or TX processor 220, RX processor 238, or communication unit 294, and at least one of controller / processor 240 or 290.

[0095] As can be seen in the detailed description above, different features are grouped together in the examples. This disclosure should not be construed as implying that the example clauses have more features than are explicitly mentioned in each clause. Rather, aspects of this disclosure may include fewer features than those in the individual example clauses disclosed. Therefore, the following clauses should be considered as included in the specification, where each clause can be considered a separate example on its own. While each dependent clause may refer in the clause to a specific combination with one of the other clauses, the aspect(s) of that dependent clause is not limited to that specific combination. It should be understood that other example clauses may also include combinations of aspects(s) of dependent clauses with the subject matter of any other dependent or independent clause, or any feature combined with other dependent and independent clauses. Unless expressly stated or readily inferred that a particular combination is not intended (e.g., contradictory aspects, such as defining an element as both an insulator and a conductor), the aspects disclosed herein expressly include such combinations. Furthermore, it is intended that aspects of a clause may be included in any other independent clause, even if that clause does not directly depend on that independent clause.

[0096] Implementation examples are described in the following numbered clauses:

[0097] Clause 1. A method of operating a first wireless device, comprising: receiving an instruction for a self-interference measurement (SIM) configuration associated with null formation at the first wireless device, the null formation being associated with redirecting at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof, away from one or more external self-interference sources; and performing at least one null formation process according to the SIM configuration.

[0098] Clause 2. The method as described in Clause 1, wherein the first wireless device corresponds to a user equipment (UE).

[0099] Clause 3. The method as described in Clause 2, wherein the instruction is received from the base station.

[0100] Clause 4. The method described in any one of Clauses 1 to 3, wherein the first wireless device corresponds to a base station.

[0101] Clause 5. The method as described in Clause 4, wherein the receipt receives the indication from an external physical network component, or wherein the receipt receives the indication from a second logical component of the base station at a first logical component of the base station.

[0102] Clause 6. The method as described in any one of Clauses 1 to 5, wherein at least one zero-point formation process includes receiving a zero-point formation process.

[0103] Clause 7. The method as described in Clause 6, wherein the receiving null formation process comprises: transmitting multiple signals on the same transmit beam and measuring multiple signals on multiple different receive beams.

[0104] Clause 8. The method as described in Clause 7, wherein multiple different receiving beams are spatially QCL.

[0105] Clause 9. The method as described in any one of Clauses 1 to 8, wherein at least one zero-point formation process includes sending a zero-point formation process.

[0106] Clause 10. The method as described in Clause 9, wherein the transmission null formation process comprises: transmitting multiple signals on multiple different transmission beams, and measuring multiple signals on the same reception beam.

[0107] Clause 11. The method as described in Clause 10, wherein multiple different transmit beams are spatially QCL.

[0108] Clause 12. The method as described in any one of Clauses 1 to 11, wherein the SIM configuration includes an indication of SIM configuration associated with zero-point formation.

[0109] Clause 13. The method as described in any one of Clauses 1 to 12, wherein at least one zero-point formation process includes a sending zero-point formation process and a receiving zero-point formation process.

[0110] Clause 14. The method as described in Clause 13, wherein the transmitting zero-point formation process and the receiving zero-point formation process are performed iteratively.

[0111] Clause 15. The method as described in any one of Clauses 13 to 14, wherein the transmitting zero-point formation process and the receiving zero-point formation process are performed jointly.

[0112] Clause 16. The method as described in any one of Clauses 13 to 15, wherein the SIM configuration specifies a transmit configuration for at least one zero-point formation process, a receive configuration for at least one zero-point formation process, or a combination thereof.

[0113] Clause 17. The method described in any one of Clauses 1 to 16 further includes: reporting to the network entity one or more results associated with at least one zero-point formation process.

[0114] Clause 18. The method of any one of Clauses 1 to 17 further comprises: sending a request for SIM configuration to a network entity, wherein the receiving entity receives the SIM configuration in response to the request.

[0115] Clause 19. A method of operating a network device, comprising: determining a self-interference measurement (SIM) configuration associated with null formation at a first wireless device, the null formation being associated with redirecting at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof, away from one or more external self-interference sources; and sending an instruction to the first wireless device on the SIM configuration to facilitate at least one null formation process at the first wireless device.

[0116] Clause 20. The method as described in Clause 19, wherein the first wireless device corresponds to a user equipment (UE) or a base station.

[0117] Clause 21. The method as described in any one of Clauses 19 to 20, wherein the network device corresponds to a base station.

[0118] Clause 22. The method as described in any one of Clauses 19 to 21, wherein at least one zero-point formation process includes receiving a zero-point formation process.

[0119] Clause 23. The method as described in any one of Clauses 19 to 22, wherein at least one zero-point formation process includes sending a zero-point formation process.

[0120] Clause 24. The method as described in any one of Clauses 19 to 23, wherein the SIM configuration includes an indication of SIM configuration associated with zero-point formation.

[0121] Clause 25. The method as described in any one of Clauses 19 to 24, wherein the SIM configuration specifies a transmit configuration for at least one zero-point formation process, a receive configuration for at least one zero-point formation process, or a combination thereof.

[0122] Clause 26. The method described in any one of Clauses 19 to 25 further includes: receiving a report of one or more results associated with at least one zero-point formation process.

[0123] Clause 27. The method as described in Clause 26, wherein the report is triggered periodically or semi-persistently in response to a request from a network entity, in an event-triggered manner, or a combination thereof.

[0124] Clause 28. The method of any one of Clauses 19 to 27 further comprises: receiving a request for SIM configuration, wherein the sending is in response to the request to send SIM configuration.

[0125] Clause 29. An apparatus comprising a memory, at least one transceiver, and at least one processor communicatively coupled to the memory and at least one transceiver, the memory, at least one transceiver, and at least one processor being configured to perform a method according to any one of Clauses 1 to 28.

[0126] Clause 30. An apparatus comprising components for performing the method according to any one of Clauses 1 to 28.

[0127] Clause 31. A non-transitory computer-readable medium storing computer-executable instructions, the computer-executable instructions including at least one instruction for causing a computer or processor to perform a method according to any one of Clauses 1 to 28.

[0128] Those skilled in the art will further recognize that the various illustrative logic blocks, modules, circuits, and algorithm steps described herein in conjunction with this disclosure (e.g., Figures 5-6 The logic blocks (in the document) can be implemented as electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been generally described above regarding their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole. Those skilled in the art can implement the described functionality in alternative ways for each specific application; however, such implementation decisions should not be construed as departing from the scope of this disclosure. Those skilled in the art will also readily recognize that the order or combination of components, methods, or interactions described herein are merely examples, and components, methods, or interactions of various aspects of this disclosure can be combined or performed in ways different from those shown and described herein.

[0129] The various illustrative logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0130] The steps of the methods or algorithms described herein can be directly embodied in hardware, a software module executed by a processor, or a combination of both. The software module can reside in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, portable hard disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium can be coupled to a processor, enabling the processor to read information from and write information to the storage medium. Alternatively, the storage medium can be a component of the processor. The processor and storage medium can reside in an ASIC. The ASIC can reside in a user terminal. Alternatively, the processor and storage medium can reside as discrete components in the user terminal.

[0131] In one or more exemplary design schemes, the described functionality can be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functionality can be stored on or transmitted via a computer-readable medium as one or more instructions or code. A computer-readable medium includes both computer storage media and communication media, with communication media including any medium that facilitates the transmission of a computer program from one place to another. A computer-readable storage medium can be any available medium accessible by a general-purpose or special-purpose computer. By way of example, and not limitation, such a computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage devices, or any other medium capable of carrying or storing desired program code units having an instruction or data structure and accessible by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Furthermore, a connection can be appropriately referred to as a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, or digital subscriber line (DSL), then coaxial cable, fiber optic cable, twisted pair, or DSL is included in the definition of medium. As used herein, disks and optical discs include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), hard disks, solid-state drives (SSDs), and Blu-ray discs, where disks typically copy data magnetically, while optical discs use lasers to copy data optically. Combinations of these should also be included within the scope of computer-readable media.

[0132] As used herein (including in the claims), when used for a list of two or more items, the term "and / or" means that any one of the listed items may be used individually, or any combination of two or more of the listed items may be used. For example, if a composite is described as comprising components A, B, and / or C, the composite may comprise: only A; only B; only C; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C. Furthermore, as used herein (including in the claims), "or" as in a list of items ending with "at least one of" indicates a separate list, such that, for example, the list "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C), or any combination thereof.

[0133] The prior description of this disclosure is provided to enable those skilled in the art to implement or use it. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs disclosed herein, but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method of operating a first wireless device, comprising: receiving an indication of a self-interference measurement, SIM, configuration, the SIM configuration associated with null-forming at the first wireless device, the null-forming associated with steering at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof away from one or more external sources of self-interference; and performing at least one null-forming procedure in accordance with the SIM configuration.

2. The method of claim 1, wherein, The first wireless device corresponds to a user equipment, UE.

3. The method of claim 2, wherein, The indication is received from a base station.

4. The method of claim 1, wherein, The first wireless device corresponds to a base station.

5. The method of claim 4, wherein the indication is received from an external physical network component, or wherein the indication is received at a first logical component of the base station from a second logical component of the base station.

6. The method of claim 1, wherein, The at least one null-forming procedure comprises a receive null-forming procedure.

7. The method of claim 6, wherein, The receive null-forming procedure comprises: transmitting a plurality of signals on a same transmit beam, and measuring the plurality of signals on a plurality of different receive beams.

8. The method of claim 7, wherein, The plurality of different receive beams are spatially QCL.

9. The method of claim 1, wherein, The at least one null-forming procedure comprises a transmit null-forming procedure.

10. The method of claim 9, wherein, The transmit null-forming procedure comprises: transmitting a plurality of signals on a plurality of different transmit beams, and measuring the plurality of signals on a same receive beam.

11. The method of claim 10, wherein, The plurality of different transmit beams are spatially QCL.

12. The method of claim 1, wherein, The SIM configuration comprises an indication that the SIM configuration is associated with null-forming.

13. The method of claim 1, wherein, The at least one null-forming procedure comprises a transmit null-forming procedure and a receive null-forming procedure.

14. The method of claim 13, wherein, The transmit null-forming procedure and the receive null-forming procedure are performed iteratively.

15. The method of claim 13, wherein, The transmit null-forming procedure and the receive null-forming procedure are performed jointly.

16. The method of claim 13, wherein, The SIM configuration specifies a transmit configuration for the at least one null-forming procedure, a receive configuration for the at least one null-forming procedure, or a combination thereof.

17. The method of claim 1, further comprising: reporting one or more results associated with the at least one null-forming procedure to a network entity.

18. The method of claim 1, further comprising: sending a request for the SIM configuration to a network entity, wherein the SIM configuration is received in response to the request.

19. A method of operating a network device, comprising: determining a self-interference measurement, SIM, configuration associated with null-forming at a first wireless device, the null-forming associated with steering at least one receive beam of the first wireless device, at least one transmit beam of the first wireless device, or a combination thereof away from one or more external sources of self-interference; and sending an indication of the SIM configuration to the first wireless device to facilitate at least one null-forming procedure at the first wireless device.

20. The method of claim 19, wherein, The first wireless device corresponds to a user equipment, UE, or a base station.

21. The method of claim 19, wherein, The network device corresponds to a base station.

22. The method of claim 19, wherein, The at least one null-forming procedure comprises a receive null-forming procedure.

23. The method of claim 19, wherein, The at least one null-forming procedure comprises a transmit null-forming procedure.

24. The method of claim 19, wherein, The SIM configuration includes an indication that the SIM configuration is associated with the null-forming.

25. The method of claim 19, wherein, The SIM configuration specifies a transmission configuration for the at least one null-forming procedure, a reception configuration for the at least one null-forming procedure, or a combination thereof.

26. The method of claim 19, further comprising: receiving a report of one or more results associated with the at least one null-forming procedure.

27. The method of claim 26, wherein, triggering the report in response to a request from a network entity, in an event-triggered manner, or a combination thereof, periodically or semi-persistently.

28. The method of claim 19, further comprising: receiving a request for the SIM configuration, wherein the transmitting transmits the SIM configuration in response to the request.

29. A wireless device, comprising: a transceiver; at least one memory including instructions; and at least one processor configured to execute the instructions to cause the wireless device to: receive, via the transceiver, an indication of a self-interference measurement (SIM) configuration associated with null-forming at the wireless device, the null-forming associated with steering at least one receive beam of the wireless device, at least one transmit beam of the wireless device, or a combination thereof away from one or more external sources of self-interference; and perform at least one null-forming procedure in accordance with the SIM configuration.

30. A network device, comprising: a transceiver; at least one memory including instructions; and at least one processor configured to execute the instructions to cause the network device to: determine a self-interference measurement (SIM) configuration associated with null-forming at a wireless device, the null-forming associated with steering at least one receive beam of the wireless device and / or at least one transmit beam of the wireless device away from one or more external sources of self-interference; and transmit, via the transceiver, an indication of the SIM configuration to the wireless device to facilitate at least one null-forming procedure at the wireless device.

31. A computer-readable storage medium having instructions stored thereon, the instructions, when executed, cause one or more processors to perform the method of any one of claims 1-28.

32. A computer program product comprising computer-readable instructions, which, when executed by a processor, cause the processor to perform the method of any one of claims 1-28.

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