Method for self-interference and cross-link interference measurement in millimeter wave frequency bands

Abstract

Methods, systems, and devices for wireless communications for self-interference or cross-link interference measurements at a user equipment (UE) are described. A UE can receive, from a base station, configuration information indicating one or more slot format index (SFI) values that are compatible with cross-link interference or self-interference measurements. Based on the configured SFI, the UE can measure interference in a plurality of symbols that can be used to estimate an amount of cross-link interference or self-interference, and the UE can transmit a measurement report to the base station. Based on the measurement report, the base station can identify one or more compatible SFIs, beam pairs, or combinations thereof, for subsequent communications with one or more UEs. The interference measurements can identify cross-link interference at the UE resulting from transmissions by a different UE, or can identify self-interference of concurrent communications of multiple channels at the same UE.

Description

[0001] Cross-referencing

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 009,236, filed April 13, 2020, entitled “Methods for Self-Interference and Cross-Link Interference Measurements in Millimeter WaveBands”, and U.S. Patent Application No. 17 / 224,004, filed April 6, 2021, entitled “Methods for Self-Interference and Cross-Link Interference Measurements in Millimeter WaveBands”, each of which is assigned to the assignee of this application. Technical Field

[0003] The following generally relates to wireless communication and to methods for measuring self-interference and cross-link interference in the millimeter-wave (mmW) band.

[0004] background

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (such as Long Term Evolution (LTE) systems, LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ various technologies, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication from multiple communication devices, which may also be referred to as User Equipment (UE).

[0006] Overview

[0007] The described technology relates to improved methods, systems, apparatus, and devices for measuring self-interference and cross-link interference in millimeter-wave (mmW) bands. Aspects provide that a user equipment (UE) can receive configuration information from a base station indicating one or more Slot Format Index (SFI) values ​​compatible with cross-link interference or self-interference measurements. Based on the configured SFIs, the UE can measure interference in multiple symbols, which can be used to estimate the amount of cross-link interference or self-interference, and transmit a measurement report to the base station. In some cases, the UE can indicate one or more SFIs compatible with communication with the UE based on interference measurements. Based on the measurement report, the base station can identify one or more compatible SFIs for communication with one or more UEs and use the identified compatible SFIs to perform communication. In some cases, interference measurements can identify cross-link interference at the UE caused by transmissions from different UEs. In some cases, interference measurements can identify self-interference from concurrent communication on multiple channels at the same UE.

[0008] A method for wireless communication at a base station is described. The method may include: selecting a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; configuring a first timeslot format at the first UE using the first SFI and configuring a second timeslot format at the second UE using the second SFI; and receiving a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

[0009] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; configure a first timeslot format at the first UE using the first SFI and a second timeslot format at the second UE using the second SFI; and receive a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

[0010] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: selecting a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; configuring a first timeslot format at the first UE with the first SFI and a second timeslot format at the second UE with the second SFI; and receiving a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

[0011] A non-transient computer-readable medium is described, storing code for wireless communication at a base station. The code may include instructions executable by a processor to: select a first SFI for communication with a first UE via a first carrier and a second SFI for communication with a second UE via a second carrier, wherein the first and second SFIs are selected based on compatibility for measuring interference between the first and second UEs at one or more of the first or second UEs; configure a first timeslot format at the first UE using the first SFI and a second timeslot format at the second UE using the second SFI; and receive a measurement report for one or more of the first or second UEs, the measurement report indicating one or more interference measurements based on the first or second SFI.

[0012] In some examples of the methods, apparatuses (devices), and non-transient computer-readable media described herein, a first symbol of each of the first SFI and the second SFI is configured as a downlink symbol, wherein each of the first UE and the second UE receives information from the base station during the first symbol period; a second symbol of the first UE is configured for uplink transmission from the first UE, and the second UE is configured for downlink reception during the second symbol period; and the second UE is configured to measure interference from concurrent transmissions from the first UE and the base station during the second symbol period relative to a baseline case where downlink reception is performed solely from the base station during the first symbol period. Some examples of the methods, apparatuses (devices), and non-transient computer-readable media described herein may further include operations, features, means, or instructions for configuring the first or second UE for uplink transmission or downlink reception in the first or second symbol period via reconfiguration of flexible symbols or gap symbols, wherein the measurement report indicates cross-link interference measurements of the first UE based on measurement differences between the first and second symbols. In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the number of symbols or time slots configured for cross-link interference measurement by the first SFI and the second SFI is based on the subcarrier spacing (SCS) of the first UE or the second UE. In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the number of symbols or time slots configured for cross-link interference measurement by the first SFI and the second SFI is based on the interference estimation quality associated with the measurement report. In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the interference estimation quality may be a band-specific, bandwidth-specific, or link-specific estimation quality.

[0013] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the power level at the first UE may be configured based on the compatibility of the first SFI being selected for measuring interference between the first UE and the second UE. Some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein may further include operations, features, means, or instructions for configuring beamforming parameters of the first UE and the second UE to be consistent at least during the portion of the first SFI and the second SFI used to measure cross-link interference between the first UE and the second UE.

[0014] Some examples of the methods, apparatuses, and nontransient computer-readable media described herein may further include operations, features, means, or instructions for receiving from one or more of the first UE or the second UE a request to perform interference measurements for one or more SFIs, wherein the selection and configuration are performed in response to the request. In some examples of the methods, apparatuses, and nontransient computer-readable media described herein, the measurement report is received from the second UE and provides one or more of the following: an indication of a compatible set of SFIs based on interference measurements at the second UE, a first interference estimate associated with a first symbol not transmitted by the first UE in the time slot, a second interference estimate associated with a second symbol transmitted by the first UE in the time slot for uplink communication, or any combination thereof. In some examples of the methods, apparatuses, and nontransient computer-readable media described herein, the first UE and the second UE may be the same UE, and wherein the first carrier uses a first frequency band, and the second carrier uses a second frequency band different from the first frequency band.

[0015] A method for wireless communication at a second UE is described. The method may include: receiving configuration information from a base station indicating a first Signal-Free Interference Component (SFI) for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmitting a measurement report to the base station providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on a first interference measurement during the first measurement symbol period, and the second interference estimate is based on a second interference measurement during the second measurement symbol period.

[0016] An apparatus for wireless communication at a second UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: receive configuration information from a base station, the configuration information indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmit a measurement report to the base station, the measurement report providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on a first interference measurement during the first measurement symbol period, and the second interference estimate is based on a second interference measurement during the second measurement symbol period.

[0017] Another apparatus for wireless communication at a second UE is described. The apparatus may include means for: receiving configuration information from a base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmitting a measurement report to the base station providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on a first interference measurement during the first measurement symbol period, and the second interference estimate is based on a second interference measurement during the second measurement symbol period.

[0018] A non-transient computer-readable medium is described, storing code for wireless communication at a second UE. The code may include instructions executable by a processor to: receive configuration information from a base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmit a measurement report to the base station providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on a first interference measurement during the first measurement symbol period, and the second interference estimate is based on a second interference measurement during the second measurement symbol period.

[0019] In some examples of the methods, apparatuses, and non-transient computer-readable media described herein, a first measurement symbol is configured as a downlink symbol for receiving information from the base station at a second UE during the first measurement symbol period; a second measurement symbol is configured for uplink transmission at the first UE and is also configured as a downlink symbol for receiving information from the base station at the second UE; and the measurement report indicates interference from concurrent transmissions from the first UE and the base station during the second measurement symbol period, relative to a baseline scenario of downlink reception solely from the base station during the first measurement symbol period. Some examples of the methods, apparatuses, and non-transient computer-readable media described herein may further include operations, features, means, or instructions for receiving further configuration information from the base station, which configures uplink transmission or downlink reception in the first or second measurement symbol period via reconfiguration of flexible symbols or gap symbols, and wherein the measurement report indicates cross-link interference measurements of the UE based on measurement differences between the first and second measurement symbols. In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the measurement report indicates one or more of the SFI set compatible with communication with the second UE, the beam pair set compatible with communication with the second UE, or any combination thereof.

[0020] In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the number of symbols or time slots configured for cross-link measurements by the first SFI may be based on the SCS of the second UE. In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, the number of symbols or time slots configured for cross-link measurements by the first SFI may be based on the interference estimation quality associated with the measurement report. In some examples of the methods, apparatus (devices), and non-transient computer-readable media described herein, this interference estimation quality may be a band-specific, bandwidth-specific, or link-specific estimation quality.

[0021] Examples of methods, apparatuses, and non-transient computer-readable media described herein include a second UE whose receive beamforming parameters are configured to be consistent at least during the first and second measurement symbols. Examples of methods, apparatuses, and non-transient computer-readable media described herein may further include operations, features, means, or instructions for transmitting to the base station a request to perform interference measurements for one or more time slot formats, wherein the configuration information is received in response to the request. Brief description of the attached diagram

[0023] Figure 1 Examples of wireless communication systems that support methods for measuring self-interference and cross-link interference in the millimeter-wave (mmW) band according to various aspects of this disclosure are explained.

[0024] Figure 2 An example of a wireless communication system that supports methods for measuring self-interference and cross-link interference in the mmW band according to various aspects of this disclosure is explained.

[0025] Figure 3 An example of a configured time slot format for a method supporting self-interference and cross-link interference measurement in the mmW band, according to various aspects of this disclosure, is explained.

[0026] Figure 4 An example of a configured time slot format for a method supporting self-interference and cross-link interference measurement in the mmW band, according to various aspects of this disclosure, is explained.

[0027] Figure 5 An example of a configured time slot format for a method supporting self-interference and cross-link interference measurement in the mmW band, according to various aspects of this disclosure, is explained.

[0028] Figure 6An example of the process flow for methods supporting self-interference and cross-link interference measurement in the mmW band is explained according to various aspects of this disclosure.

[0029] Figure 7 and 8 A block diagram of an apparatus supporting a method for measuring self-interference and cross-link interference in the mmW band is shown, according to various aspects of this disclosure.

[0030] Figure 9 A block diagram of a communication manager supporting methods for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, is shown.

[0031] Figure 10 A diagram of a system including a device for measuring self-interference and cross-link interference in the mmW band is shown, according to various aspects of this disclosure.

[0032] Figure 11 and 12 A block diagram of an apparatus supporting a method for measuring self-interference and cross-link interference in the mmW band is shown, according to various aspects of this disclosure.

[0033] Figure 13 A block diagram of a communication manager supporting methods for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, is shown.

[0034] Figure 14 A diagram of a system including a device for measuring self-interference and cross-link interference in the mmW band is shown, according to various aspects of this disclosure.

[0035] Figures 15 to 17 A flowchart illustrating a method for measuring self-interference and cross-link interference in the mmW band according to various aspects of this disclosure is shown.

[0036] Detailed description

[0037] In some deployments, wireless communication systems can operate in the millimeter-wave (mmW) frequency range (e.g., 24.25–29 GHz, 37–40 GHz, 52.6–71 GHz, etc.). Wireless communication at these frequencies can be associated with increased signal attenuation (e.g., path loss, penetration loss, obstacle loss), which can be affected by various factors such as diffraction, propagation environment, obstacle density, material properties, etc. As a result, signal processing techniques such as beamforming can be used to coherently combine energy and overcome path loss at these frequencies. Due to the increased path, penetration, and obstacle losses in mmW communication systems, transmissions between wireless devices (e.g., from base stations and / or user equipment (UEs)) can be beamformed. Furthermore, receiving devices can use beamforming techniques to configure antennas and / or antenna arrays and / or antenna array modules to receive transmissions in a directional manner.

[0038] Furthermore, in some deployments, the UE and base station can communicate using Time Division Duplex (TDD). To provide enhanced flexibility for both the UE and base station, dynamic TDD technology can be used, where several different TDD formats can be used, and symbols within a time slot can be configured as uplink symbols, downlink symbols, or flexible symbols. A specific TDD format suitable for the instantaneous ratio of uplink and downlink traffic at the UE can be selected. This specific TDD format can be requested by the UE and / or indicated to the UE as a Slot Format Index (SFI), where multiple different SFIs are mapped to different TDD formats for uplink / downlink or flexible symbols. Furthermore, when an SFI is associated with a time slot format having one or more flexible symbols, the base station can indicate to the UE whether such symbols are used as uplink symbols, downlink symbols, or slot symbols that can be used for retuning the transmit / receive circuitry, measurements at the UE, etc.

[0039] Furthermore, different UEs may be configured with different SFIs, which could lead to cross-link interference at one or more other UEs. For example, if a first UE is configured to receive downlink communication in a specific symbol, and an adjacent UE is configured to transmit uplink communication in the same symbol, the first UE may experience interference when attempting to receive downlink communication. Additionally or alternatively, the first UE may have the capability to communicate concurrently on different channels (e.g., using inter-band carrier aggregation in different frequency ranges, or using full-duplex technology within the same UE), and may be configured with different SFIs for different channels, which could lead to self-interference at the first UE.

[0040] The various techniques discussed herein provide self-interference and cross-link interference measurements at one or more UEs. In some cases, the UE may receive configuration information from the base station indicating one or more SFIs compatible with cross-link interference or self-interference measurements. Based on the configured SFIs, the UE may measure interference in multiple symbols, which can be used to estimate the amount of cross-link interference or self-interference and transmit a measurement report to the base station. In some cases, the UE may indicate one or more SFIs compatible with communication with the UE based on interference measurements. Based on the measurement report, the base station may identify one or more compatible SFIs for communication with one or more UEs and use the identified compatible SFIs to perform communication.

[0041] In some scenarios, the base station can coordinate compatible SFIs at different UEs or within the same UE, and can coordinate beamforming to ensure that the appropriate set of symbols is configured for transmit or receive roles across one or more time slots of one or more UEs to achieve self-interference or cross-link interference measurement. In some scenarios, a UE with one or more symbols configured for receive roles can measure interference in different symbols, wherein at least one of the measured symbols is used for transmission by another UE or for transmission by the same UE (e.g., on another carrier in an inter-band carrier aggregation configuration). Measurement reports indicating the measured interference can be used at the UE or at the base station to identify one or more compatible SFIs, one or more beamforming parameters, or any combination thereof, for subsequent communication by one or more UEs.

[0042] In some cases, the number of symbols / slots requiring coordination for measurements depends on one or more of the following: subcarrier spacing (SCS) across one or more UEs, cross-link interference or self-interference estimation quality (e.g., which may vary by frequency band or by link quality), or any combination thereof. Furthermore, in some cases, the power level for concurrent communication can be set by the base station such that the uplink transmissions of the UE in the transmission role are suitable for measurement interference in the uplink symbols. In some cases, one or more UEs may transmit a request to the base station to perform measurements, or the base station may determine to perform measurement procedures. In some cases, based on measurements at the UE in the measurement role and the levels of self-interference or cross-link interference identified by these measurements, the UE may recommend a set of compatible SFI pairs for communication, an appropriate set of beam pairs for use in communication, or a combination thereof.

[0043] Such techniques can provide one or more advantages in systems utilizing dynamic TDD. For example, by allowing measurements of cross-link interference or self-interference at the UE, more accurate interference estimates between different SFIs can be determined, which allows for the selection of compatible SFIs and beam pairs for subsequent communications. This can generate an enhanced likelihood of successful communication by managing potential sources of interference. Radio resource efficiency can be further enhanced by scheduling devices for concurrent communication, which allows multiple devices to communicate and thus increases overall system throughput. Additionally, beamforming parameter selection based on interference measurements can reduce instances where transmitting devices may interfere with receiving devices, which can reduce instances of retransmissions of unsuccessfully received communications.

[0044] The aspects of this disclosure are initially described in the context of wireless communication systems. Various examples of SFI and measurement techniques are then discussed. The aspects of this disclosure are further explained and described by means of, and with reference to, apparatus diagrams, system diagrams and flowcharts relating to methods for measuring self-interference and cross-link interference in the mmW band.

[0045] Figure 1 Examples of a wireless communication system 100 supporting methods for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, are described. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0046] Base station 105 can be distributed across a geographical area to form wireless communication system 100, and can be different types of devices or devices with different capabilities. Base station 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area over which base station 105 and UE 115 can support signal communication according to one or more radio access technologies.

[0047] Each UE 115 can be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. Each UE 115 can be a different type of device or a device with different capabilities. Figure 1The document describes some example UE 115s. The UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network equipment (e.g., core network nodes, relay equipment, integrated access and backhaul (IAB) nodes, or other network equipment). Figure 1 As shown in the image.

[0048] Each base station 105 may communicate with the core network 130, or with each other, or both. For example, base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other directly (e.g., directly between base stations 105), indirectly (e.g., via the core network 130), or directly and indirectly on backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or include one or more radio links.

[0049] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base transceiver station, radio base station, access point, radio transceiver, B node, evolved B node (eNB), next-generation B node or gigabit B node (any of which may be referred to as gNB), home B node, home evolved B node, or other suitable terms.

[0050] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, which may be implemented in various objects such as appliances or vehicles, meters, etc.

[0051] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, as well as base station 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 As shown in the image.

[0052] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0053] In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. The carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by UE 115. The carrier may operate in an autonomous mode in which initial acquisition and connection can be performed by UE 115 via that carrier, or in a non-autonomous mode in which the carrier may connect to carriers anchored using different carriers (e.g., different carriers of the same or different radio access technologies).

[0054] The communication link 125 shown in the wireless communication system 100 may include uplink transmission from UE 115 to base station 105, or downlink transmission from base station 105 to UE 115. The carrier may carry downlink or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0055] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several defined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) of a carrier for a particular radio access technology. Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication over a single carrier bandwidth within a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate over a portion (e.g., a subband, BWP) or all of the carrier bandwidth.

[0056] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate the UE 115 can achieve. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and using multiple spatial layers can further improve the data rate or data integrity of communication with the UE 115.

[0057] One or more parameter designs for a carrier can be supported, where the parameter design may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier can be divided into one or more BWPs with the same or different parameter designs. In some examples, UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier can be active at a given time, and communication for UE 115 can be limited to one or more active BWPs.

[0058] The time interval of base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period T. s =1 / (Δf) max ·N f ) seconds, where Δf max This can represent the maximum supported subcarrier spacing, while Nf This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).

[0059] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into several time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include several symbol periods (e.g., depending on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N) symbols. f (Number) sampling periods. The duration of a symbol period can depend on the subcarrier interval or the operating frequency band.

[0060] A subframe, time slot, mini-slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0061] Physical channels can be multiplexed on a carrier using various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, using one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information in a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set configured to send control information to a specific UE 115.

[0062] Each base station 105 may provide communication coverage via one or more cells (e.g., macrocells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with base station 105 (e.g., on a carrier) and may be associated with an identifier used to distinguish adjacent cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or others). In some examples, a cell may also refer to a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The extent of such cells may vary from smaller areas (e.g., structures, subsets of structures) to larger areas depending on various factors (such as the capabilities of base station 105). For example, a cell may be or include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110, among other examples.

[0063] Macrocells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs 115 that have service subscriptions with a network provider supporting the macrocell. Small cells may be associated with a lower-power base station 105 (compared to macrocells) and may operate in the same or different (e.g., licensed or unlicensed) frequency bands as macrocells. Small cells may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with the small cell (e.g., UEs 115 in a Closed Subscriber Group (CSG), or UEs 115 associated with a user in a home or office). Base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0064] In some examples, a carrier can support multiple cells and can be configured with different cells based on different protocol types that can provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).

[0065] In some examples, base station 105 may be mobile, and thus provide communication coverage to mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage to various geographic coverage areas 110.

[0066] Some UE 115 devices (such as MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that have integrated sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to people interacting with the application. Some UE 115 devices may be designed to collect information or automate the behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wilderness survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial toll collection.

[0067] Wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services, such as Mission-Critical Talk-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData)). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general business applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency are used interchangeably herein.

[0068] In some examples, UE 115 may also be able to communicate directly with other UE 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UE 115s utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of base station 105 or may be unable to receive transmissions from base station 105 for other reasons. In some examples, groups of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between the individual UE 115s without involving base station 105.

[0069] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-vehicle (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these communications. Vehicles may signal information related to traffic conditions, signaling, weather, safety, emergencies, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate via vehicle-to-network (V2N) communication through one or more network nodes (e.g., base station 105) with roadside infrastructure (such as roadside units), or with the network, or with both.

[0070] Core network 130 provides user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC). The EPC or 5GC may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) for routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by base station 105 associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Carrier IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0071] Some network devices (such as base station 105) may include sub-components, such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio headends and ANCs) or combined into a single network device (e.g., base station 105).

[0072] Wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz band is referred to as a UHF band or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to UE 115 located indoors. Compared to transmissions using smaller frequencies and longer waves in the lower HF or VHF portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).

[0073] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) zoning using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band) or in the extremely high frequency (EHF) zoning using a spectrum (e.g., from 30 GHz to 300 GHz) (also known as the millimeter band). In some examples, the wireless communication system 100 can support mmW communication between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices can be smaller and more closely spaced than UHF antennas. In some examples, this can facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein can be employed across transmissions using one or more different frequency zonings, and the frequency band usage specified across these frequency zonings may vary by country or regulatory authority.

[0074] Wireless communication system 100 may utilize both licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio spectrum bands, devices (such as base station 105 and UE 115) may employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed frequency bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed frequency bands. Operation in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.

[0075] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may coexist at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array with several rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0076] Base station 105 or UE 115 can use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique is known as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.

[0077] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array, such that some signals propagating relative to a particular orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustments associated with each antenna element may be defined by a beamforming weight set associated with a particular orientation (e.g., the antenna array relative to the transmitting or receiving device, or relative to some other orientation).

[0078] Base station 105 or UE 115 may use beamsweeping techniques as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) for beamforming operations to facilitate directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals based on different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the transmitting device (such as base station 105) or the receiving device (such as UE 115)) to identify the beam direction that base station 105 uses for later transmission or reception.

[0079] Some signals (such as data signals associated with a specific receiving device) may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with the receiving device (such as UE 115)). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signals received by UE 115 with the highest signal quality or other acceptable signal quality.

[0080] In some examples, transmissions performed by a device (e.g., by base station 105 or UE 115) may be executed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate combined beams for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals that may be precoded or unprecoded (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)). UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0081] A receiver device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiver device may attempt multiple receive directions by: receiving via different antenna subarrays; processing received signals according to different antenna subarrays; receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiver device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0082] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer can be IP-based. The Radio Link Control (RLC) layer performs packet segmentation and reassembly for communication on logical channels. The Media Access Control (MAC) layer performs priority handling and multiplexing of logical channels into transport channels. The MAC layer can also use error detection, error correction, or both to support MAC layer retransmissions to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections between the UE 115 and the base station 105 or core network 130 that support user plane data radio bearers. At the physical layer, transport channels can be mapped to physical channels.

[0083] In some scenarios, one or more UEs 115 may perform self-interference or cross-link interference measurements according to the techniques described herein. In some scenarios, UE 115 may receive configuration information from base station 105 indicating one or more SFI values ​​compatible with cross-link interference or self-interference measurements. Based on the configured SFI, UE 115 may measure interference in multiple symbols, which can be used to estimate the amount of cross-link interference or self-interference, and UE 115 may transmit a measurement report to base station 105. In some scenarios, UE 115 may indicate one or more SFIs for compatible communication based on interference measurements. Based on the measurement report, base station 105 may identify one or more compatible SFIs for communication with one or more UEs 115 and use the identified compatible SFIs to perform subsequent communication. In some scenarios, interference measurements may identify cross-link interference at UE 115 caused by transmissions from different UEs 115. In some scenarios, interference measurements may identify self-interference from concurrent communication on multiple channels at the same UE 115.

[0084] Figure 2 Examples of a wireless communication system 200 supporting methods for measuring self-interference and cross-link interference in the mmW band according to various aspects of this disclosure are described. In some examples, the wireless communication system 200 may implement various aspects of the wireless communication system 100. In this example, the wireless communication system 200 includes a first UE 115-a, a second UE 115-b, a first base station 105-a providing a serving cell for the first UE 115-a, and a second base station 105-b providing a serving cell for the second UE 115-b.

[0085] Although described separately, in some cases, the first base station 105-a and the second base station 105-b may be part of the same base station (e.g., the radio head or antenna panel of the gNB). The UE 115 and base station 105 may be as described in reference... Figure 1 Examples of UE 115 and base station 105 described.

[0086] The first base station 105-a can use downlink beam 205 to transmit downlink communication 210 to the first UE 115-a. Further, the second UE 115-b can use uplink beam 215 to transmit uplink communication 220 to the second base station 105-b. In other examples, the same UE 115 can receive downlink communication 210 and transmit uplink communication 220, such as according to in-band or inter-band carrier aggregation techniques or in full-duplex operation mode. As discussed herein, in some cases, TDD can be used for communication between base station 105 and UE 115, where each UE 115 can be configured with one or more different available TDD timeslot formats, which can be indicated to the UE 115 in the SFI. In some scenarios, one or more symbols in the TDD format may provide uplink communication from the second UE 115-b to the second base station 105-b, while the same symbols may provide downlink communication from the first base station 105-a to the first UE 115-a. This could lead to cross-link interference 225 at the first UE 115-a. Similarly, in cases where the first UE 115-a transmits uplink communication in symbols while the second UE 115-b receives downlink communication during these symbols, the second UE 115-b may experience such cross-link interference 225. Furthermore, in cases where the same UE 115 may communicate in different directions during one or more symbols, such UE 115 may generate self-interference between its own transmit and receive beams. Various techniques for measuring and reporting cross-link interference or self-interference are discussed herein. Figures 3 to 5 Several examples of cross-link interference or self-interference and their measurement are provided.

[0087] Figure 3 Examples of configured time slot format 300 supporting methods for measuring self-interference and cross-link interference in the mmW band according to various aspects of this disclosure are described. In some examples, the configured time slot format 300 may implement various aspects of wireless communication systems 100 or 200. In this example, the first UE (or the first carrier of the first UE) (e.g., Figure 1 or Figure 2 UE 115 may be configured with a first SFI 305 (e.g., SFI0) providing a slot format with all downlink symbols. The second UE (or the second carrier of the first UE) may be configured with a second SFI 310 (e.g., SFI 28) providing a slot format with downlink symbols for symbols 0 to 11, flexible symbols at symbol 12, and uplink symbols at symbol 13.

[0088] In some scenarios, to enable inter-band self-interference measurement within the UE or cross-link interference measurement across the UE, the measurement at the first UE can be configured according to the first SFI 305 and the second SFI 310. Note that the same SCS is assumed in this example, and the time slot duration is therefore the same. In some scenarios, the serving base station can configure the SFI to enable efficient self-interference or cross-link interference measurement. In this example, the first set of symbols 315 across both the first SFI 305 and the second SFI 310 is a downlink symbol, differing in the last two symbols of the time slot, where symbol 12 of the second SFI 310 is configured as a flexible / gap symbol 320 during which the first UE can measure downlink interference, and where symbol 13 of the second SFI 310 is configured as an uplink symbol 325 during which the first UE can measure self-interference or cross-link interference. Although the difference in symbols is shown in the last two symbols of the time slot in this example, it should be understood that this example is provided for illustrative and discussion purposes only, and techniques such as those discussed herein can be used in many different time slot formats that can be coordinated across UEs so that one UE can transmit and another UE can have flexible / gap symbols for measurement.

[0089] As indicated, the first SFI 305 and the second SFI 310 can be configured at different UEs or at the same UE for the transmit / receive portion of the device (e.g., in inter-band carrier aggregation, such as frequency range FR2 / FR4 CA, or in full-duplex operation). In this example, the second UE can be configured by the base station not to transmit on flexible / gap symbols 320, while the first UE is configured to receive and measure downlink communication from the base station during symbol 320. Subsequently, the second UE is configured to transmit on uplink symbols 325, during which the first UE can measure. The first UE can thus determine differential measurements, which can be used to estimate cross-link interference or self-interference at the UE. In some cases, the first UE can transmit measurement reports to the base station, and the base station can select one or more SFIs, beam pairs, or combinations thereof for subsequent communication at the first UE and the second UE (or different carriers of the first UE), which is compatible with the estimated interference based on the measurements at the first UE. In some scenarios, the first UE may provide indications for one or more compatible SFIs based on measurements, which may be selected at the base station for subsequent communication. In some scenarios, the downlink transmission beam for the first UE may be coordinated to be identical across symbols 320 and 325 to help provide measurement consistency (e.g., by using the same parameters across symbols). Furthermore, the power levels used across symbols 320 and 325 may be configured to ensure good quality measurements without interfering with other nodes in the network. Furthermore, in some scenarios, the SFIs used for measurements at the first UE may be selected to provide more accurate interference estimates, such as by having the measuring UE perform measurements during flexible symbol periods, such as... Figure 4 What is being explained.

[0090] Figure 4 Examples of configured time slot format 400 supporting methods for measuring self-interference and cross-link interference in the mmW band according to various aspects of this disclosure are explained. In some examples, the configured time slot format 400 may implement various aspects of wireless communication systems 100 or 200. In this example, the first UE (or the first carrier of the first UE) (e.g., Figure 1 or Figure 2 UE 115 may be configured with a first SFI 405 (e.g., SFI 3) providing a time slot format having downlink symbols in time slots 0 to 12 and flexible symbols in symbol 13. A second UE (or a second carrier of the first UE) may be configured with a second SFI 410 (e.g., SFI 28) providing a time slot format having downlink symbols for symbols 0 to 11, flexible symbols at symbol 12, and uplink symbols at symbol 13.

[0091] In this example, inter-band self-interference within the UE or cross-link interference across the UE can be measured at the first UE based on the first SFI 405 and the second SFI 410. This example again assumes that the same SCS is used for each SFI, and therefore the time slot duration is the same. In this example, the first set of symbols 415 across both the first SFI 405 and the second SFI 410 is a downlink symbol, differing in the last two symbols of the time slot, where symbol 12 of the second SFI 410 is configured as a flexible / gap symbol 420 during which the first UE can measure downlink interference, and where symbol 13 of the second SFI 410 is configured as an uplink symbol 425 and a flexible symbol for the second UE during which the first UE can measure self-interference or cross-link interference.

[0092] In this example, the second UE can be configured by the base station not to transmit on the flexible / gap symbol 420, while the first UE is configured to receive and measure downlink communication from the base station during symbol 420. In the final symbol 425, the second UE (or the second carrier at the first UE) can be configured for uplink transmission, while the first UE (or the first carrier at the first UE) can be configured to receive and measure on the flexible symbol. Based on these two measurements, the first UE can determine relative cross-link interference or self-interference. In this example, similar to... Figure 3 For example, beams can be coordinated to be identical across measurement symbols to ensure measurement consistency, and power levels can be appropriately configured to ensure good quality measurements without interfering with other nodes in the network.

[0093] In some scenarios, whether the same or different SCSs are used for two UEs or two carriers, the confidence level in interference measurements can be used to determine how many symbols (e.g., measurement window length) are configured for measurement at the first UE, or for measurement at the second UE if the second UE also measures interference according to the configured SFI. In some cases, the measurement window length can vary by frequency band, by link quality, by deployment, or a combination thereof. A longer average measurement window may be needed in some situations to filter out short-term variations and noise, but introduces additional overhead by increasing latency in interference estimation for cross-link interference or self-interference, or both. In some cases, the base station may select the measurement window duration based on such factors.

[0094] Figure 5 Examples of a configured time slot format 500 supporting methods for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, are described. In some examples, the configured time slot format 500 may implement various aspects of the wireless communication system 100 or 200. In this example, the first UE (or the first carrier of the first UE) (e.g., Figure 1or Figure 2 The UE 115 may be configured to provide a first SFI 505 (e.g., SFI 3) with downlink symbols in slots 0 to 12 and flexible symbols in symbol 13.

[0095] exist Figure 5 In this example, the second UE (or the second carrier of the first UE) may be configured with a different SCS than the first UE, and thus use a different time slot duration. In this example, the second UE or the second carrier may have an SCS providing two time slots corresponding to a single time slot of the first UE (e.g., the second UE / carrier may have a 240kHz SCS, while the first UE / carrier has a 120kHz SCS), including a first time slot 515 configured with an SFI having all downlink symbols (e.g., SFI = 0) and a second time slot 520 configured with an SFI having all flexible symbols (e.g., SFI = 2). Based on a determination to perform cross-link or self-interference measurements, the base station may configure the SFI across multiple time slots so that for one or more symbols, one UE transmits and another UE has flexible / gap symbols for measurement. Thus, in this example, the second UE / carrier may be configured to transmit in the last one or two symbols of the second time slot 520. Additionally, in some cases, the base station may configure (the UEs) such that interference measurements associated with the second UE (or the second carrier of the first UE) can be performed. For example, in symbol 12 of the first UE / carrier, the second UE / carrier may be configured for downlink and uplink symbols of two corresponding symbols at the second UE / carrier, and the first UE may measure relative interference to estimate cross-link interference or self-interference present from the second UE or the second carrier. In symbol 13, the first UE / carrier may transmit uplink communication, and the second UE (or the second carrier at the first UE) may then measure to determine cross-link or self-interference from the first UE / carrier. Thus, in this case, cross-link interference or self-interference can be measured at both the first UE / carrier and the second UE / carrier. Furthermore, whether the same or different SCSs are used for the two UEs or for each carrier at the same UE, the confidence level in the interference measurement may be used to determine how many symbols are included in the measurement window length used for measurement at either UE. In some cases, the measurement window length may vary depending on the frequency band, link quality, deployment, or a combination thereof, similar to the situation regarding... Figure 3 and 4 The subject of discussion.

[0096] Figure 6Examples of process flow 600 supporting methods for measuring self-interference and cross-link interference in the mmW band according to various aspects of this disclosure are described. In some examples, process flow 600 may implement various aspects of wireless communication systems 100 or 200. Process flow 600 may be implemented by a first UE 115-c, a second UE 115-d, and a base station 105-b, which may be examples of UE 115 and base station 105 as described herein. Alternative examples are possible, in which some steps are performed in a different order than described or not at all. In some cases, the steps may include additional features not mentioned below, or further steps may be added.

[0097] At 605, the first UE 115-c may optionally transmit an interference measurement request to the base station 105-b. At 610, the second UE 115-d may optionally transmit an interference measurement request to the base station 105-b. In some cases, the determination of the need for interference measurement may be based on, for example, a decoding error rate exceeding a threshold, intermittent decoding errors, increased interference detected in certain symbols or time slots, or a combination thereof. The interference measurement request may be transmitted to the base station 105-b in RRC signaling, MAC-CE, uplink control information (UCI), or any combination thereof.

[0098] In 615, base station 105-b can be selected for the SFI of the first UE 115-c and the second UE 115-d, wherein the SFI is selected to be compatible with interference measurements at one or both of the first UE 115-c and the second UE 115-d. In some cases, the SFI is selected to provide, for example, downlink symbols or flexible / gap symbols for one or more symbols in a time slot (which may include the first symbol). In this case, the first UE 115-c can be configured via the SFI to measure the level of interference associated with normal downlink communication from base station 105-b in the first symbol (and optionally based on one or more other symbols of a measurement window), and can be configured via the SFI to measure cross-link interference or self-interference in at least the second symbol (e.g., downlink symbols or symbols configured as flexible / gap symbols). The second UE 115-d can also be configured via SFI configuration to suppress transmission during at least the first symbol period and perform uplink transmission during at least the second symbol period to allow cross-link interference or self-interference measurement. At 620, base station 105-b can transmit the SFI configuration for the first UE 115-c. At 625, base station 105-b can transmit the SFI configuration for the second UE 115-d. The SFI can be transmitted in some cases in the downlink control information (DCI) to each UE 115, in the MAC-CE, in the RRC signaling, or in any combination thereof.

[0099] At 630, the first UE 115-c can determine the SFI for an upcoming time slot and identify one or more symbols (e.g., a first symbol and optionally one or more other symbols) for downlink interference measurement, and one or more symbols (e.g., a second symbol and optionally one or more other symbols) for cross-link interference measurement. Similarly, at 635, the second UE 115-d can determine the SFI for an upcoming time slot, identify one or more symbols that are not configured for transmission (e.g., at least a first symbol), and identify one or more symbols (e.g., at least a second symbol) that the second UE 115-d will transmit uplink communication. Additionally, in some cases, the second UE 115-d can be configured to perform measurements in one or more symbols, thereby allowing both the first UE 115-c and the second UE 115-d to determine an estimate of cross-link or self-interference, such as by reference. Figure 5 The subject of discussion.

[0100] At 640, base station 105-b can transmit downlink transmissions to first UE 115-c according to the SFI configured at first UE 115-c. Concurrently, at 645, base station 105-b can transmit downlink transmissions to second UE 115-d according to the SFI configured at second UE 115-d. At 650, first UE 115-c can measure downlink interference in one or more configured downlink measurement symbols.

[0101] At 655, the second UE 115-d can transmit uplink transmissions in one or more symbols according to the SFI configured at the second UE 115-d. At 660, the first UE 115-c can measure cross-link interference in one or more configured downlink or flexible / gap measurement symbols corresponding to the symbols used by the second UE 115-d for uplink communication.

[0102] At 665, the first UE 115-c can format a measurement report based on downlink and cross-link or self-interference measurements. In some cases, the measurement report can also provide indications of one or more SFIs, which the first UE 115-c can identify as compatible for concurrent communication between the first UE 115-c and the second UE 115-d. At 670, the first UE 115-c can transmit the measurement report to the base station 105-b. At 675, the base station 105-b can identify compatible SFIs for both the first UE 115-c and the second UE 115-d, and can identify compatible beam pairs for concurrent communication with the first UE 115-c and the second UE 115-d. The identified SFIs and beam pairs can then be used for subsequent communication between the first UE 115-c, the second UE 115-d, and the base station 105-b.

[0103] Figure 7 A block diagram 700 of an apparatus 705 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to various aspects of this disclosure. Apparatus 705 may be an example of various aspects of UE 115 as described herein. Apparatus 705 may include a receiver 710, a communication manager 715, and a transmitter 720. Apparatus 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0104] Receiver 710 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to methods for measuring self-interference and cross-link interference in the mmW band). This information can be transmitted to other components of device 705. Receiver 710 can be a reference... Figure 10 Examples of various aspects of the transceiver 1020 described. The receiver 710 may utilize a single antenna or an array of antennas.

[0105] The communication manager 715 can receive configuration information from a base station indicating a first SFI for communication via a first carrier and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; determine a first interference estimate based on a first interference measurement during the first measurement symbol; determine a second interference estimate based on a second interference measurement during the second measurement symbol; and transmit a measurement report to the base station providing one or more of the first interference measurement, the second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, or any combination thereof.

[0106] The communication manager 715 may also receive configuration information from the base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmit a measurement report to the base station providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on a first interference measurement during the first measurement symbol period, and the second interference estimate is based on a second interference measurement during the second measurement symbol period. The communication manager 715 may be an example of aspects of the communication manager 1010 described herein.

[0107] The communication manager 715 may be implemented as described herein to achieve one or more potential advantages. One implementation may allow device 705 to reliably determine cross-link interference, self-interference, or a combination thereof, and report the determined interference to the base station, which may allow for enhanced reliability and reduced latency in communication based on interference mitigation or avoidance. Furthermore, various implementations may allow device 705 to initiate an interference measurement procedure based on detected channel conditions, which may further provide reduced communication latency and increase signaling reliability, throughput, user experience, and other advantages.

[0108] The communication manager 715 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 715 or its sub-components may be performed by a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described in this disclosure.

[0109] The communication manager 715 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 715 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 715 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof.

[0110] Transmitter 720 can transmit signals generated by other components of device 705. In some examples, transmitter 720 may coexist with receiver 710 in a transceiver module. For example, transmitter 720 may be a reference... Figure 10 Examples of various aspects of the transceiver 1020 described. The transmitter 720 may utilize a single antenna or an array of antennas.

[0111] Figure 8 A block diagram 800 of a device 805 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to aspects of this disclosure. Device 805 may be an example of aspects of device 705 or UE 115 as described herein. Device 805 may include a receiver 810, a communication manager 815, and a transmitter 835. Device 805 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0112] Receiver 810 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to methods for measuring self-interference and cross-link interference in the mmW band). This information can be transmitted to other components of device 805. Receiver 810 can be a reference... Figure 10 Examples of various aspects of the transceiver 1020 described. The receiver 810 may utilize a single antenna or an array of antennas.

[0113] Communication manager 815 may be an example of aspects of communication manager 715 as described herein. Communication manager 815 may include configuration manager 820, measurement manager 825, and measurement report manager 830. Communication manager 815 may be an example of aspects of communication manager 1010 as described herein.

[0114] Configuration manager 820 can receive configuration information from base station, which indicates a first SFI for communication via a first carrier and indicates at least a first measurement symbol and a second measurement symbol within the indicated SFI.

[0115] The measurement manager 825 can determine a first interference estimate based on a first interference measurement during a first measurement symbol, and determine a second interference estimate based on a second interference measurement during a second measurement symbol.

[0116] The measurement report manager 830 can transmit a measurement report to the base station, which provides one or more of the following: a first interference measurement, a second interference measurement, an indication of a compatible SFI set based on the first interference estimate and the second interference estimate.

[0117] Configuration manager 820 may also receive configuration information from the base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI. Measurement report manager 830 may also transmit a measurement report to the base station providing one or more of the following: a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on the first interference measurement during the first measurement symbol period, and the second interference estimate is based on the second interference measurement during the second measurement symbol period.

[0118] Transmitter 835 can transmit signals generated by other components of device 805. In some examples, transmitter 835 may coexist with receiver 810 in a transceiver module. For example, transmitter 835 may be a reference... Figure 10 Examples of various aspects of the transceiver 1020 described. The transmitter 835 may utilize a single antenna or an array of antennas.

[0119] Figure 9 A block diagram 900 illustrates a communication manager 905 supporting methods for measuring self-interference and cross-link interference in the mmW band, according to aspects of this disclosure. The communication manager 905 may be an example of aspects of the communication manager 715, communication manager 815, or communication manager 1010 described herein. The communication manager 905 may include a configuration manager 910, a measurement manager 915, a measurement report manager 920, an SFI manager 925, and a beam manager 930. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0120] Configuration manager 910 may receive configuration information from the base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI. In some examples, configuration manager 910 may receive further configuration information from the base station, which configures uplink transmission or downlink reception in the first or second measurement symbol via reconfiguration of flexible symbols or gap symbols.

[0121] In some cases, the first measurement symbol is configured as a downlink symbol for receiving information from the base station at the second UE during the first measurement symbol period. In other cases, the second measurement symbol is configured for uplink transmission at the first UE and is also configured as a downlink symbol for receiving information from the base station at the second UE.

[0122] Measurement manager 915 may determine a first interference estimate based on a first interference measurement during a first measurement symbol. In some examples, measurement manager 915 may determine a second interference estimate based on a second interference measurement during a second measurement symbol. Measurement report manager 920 may transmit a measurement report to the base station, which provides one or more of the first interference measurement, the second interference measurement, an indication of a compatible SFI set based on the first interference estimate and the second interference estimate, or any combination thereof. In some examples, the measurement report indicates the UE's cross-link interference measurement based on the measurement difference between the first measurement symbol and the second measurement symbol.

[0123] In some examples, the measurement report manager 920 may transmit a request to the base station to perform interference measurements for one or more time slot formats, wherein configuration information is received in response to the request. In some cases, the measurement report indicates interference from concurrent transmissions from the first UE and the base station during a second measurement symbol, relative to a baseline scenario of downlink reception solely from the base station during a first measurement symbol. In some cases, the measurement report indicates one or more of the following: a set of SFIs compatible with communication with the second UE, a set of beam pairs compatible with communication with the second UE, or any combination thereof. In some cases, the interference estimation quality is an estimated quality that varies by frequency band, by bandwidth portion, or by link.

[0124] The SFI Manager 925 can identify and configure SFIs. In some cases, the number of symbols or time slots configured for cross-link measurements in the first SFI is based on the SCS of the second UE. In other cases, the number of symbols or time slots configured for cross-link measurements in the first SFI is based on the interference estimation quality associated with the measurement report.

[0125] The beam manager 930 can receive beamforming parameters of the second UE, which are configured to be consistent at least during the first measurement symbol and the second measurement symbol.

[0126] In some examples, configuration manager 910 may receive configuration information from a base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI. In some examples, measurement report manager 920 transmits a measurement report to the base station providing one or more of the following: a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on the first interference measurement during the first measurement symbol, and the second interference estimate is based on the second interference measurement during the second measurement symbol.

[0127] Figure 10A diagram of a system 1000 including a device 1005 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to various aspects of this disclosure. Device 1005 may be an example of device 705, device 805, or UE 115 as described herein, or a component including such devices. Device 1005 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1010, an I / O controller 1015, a transceiver 1020, an antenna 1025, a memory 1030, and a processor 1040. These components may be in electronic communication via one or more buses (e.g., bus 1045).

[0128] The communication manager 1010 can receive configuration information from a base station indicating a first SFI for communication via a first carrier and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; determine a first interference estimate based on a first interference measurement during the first measurement symbol period; determine a second interference estimate based on a second interference measurement during the second measurement symbol period; and transmit a measurement report to the base station providing one or more of the first interference measurement, the second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, or any combination thereof.

[0129] The communication manager 1010 may also receive configuration information from the base station indicating a first SFI for communication via a first carrier and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmit a measurement report to the base station providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on a first interference measurement during the first measurement symbol period, and the second interference estimate is based on a second interference measurement during the second measurement symbol period.

[0130] The communication manager 1010 may be implemented as described herein to achieve one or more potential advantages. One implementation may allow the device 1005 to reliably determine cross-link interference, self-interference, or a combination thereof, and select compatible SFI and beampup links for communication with one or more UEs, which may allow for enhanced reliability and reduced latency in communication based on interference mitigation or avoidance.

[0131] I / O controller 1015 manages the input and output signals of device 1005. I / O controller 1015 can also manage peripheral devices not integrated into device 1005. In some cases, I / O controller 1015 may represent a physical connection or port to an external peripheral device. In some cases, I / O controller 1015 may utilize an operating system, such as... Or another known operating system. In other cases, the I / O controller 1015 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 1015 may be implemented as part of a processor. In some cases, a user may interact with the device 1005 via the I / O controller 1015 or via hardware components controlled by the I / O controller 1015.

[0132] Transceiver 1020 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 1020 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1020 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0133] In some cases, the wireless device may include a single antenna 1025. However, in other cases, the device may have more than one antenna 1025, which may be able to transmit or receive multiple wireless transmissions concurrently.

[0134] Memory 1030 may include random access memory (RAM) and read-only memory (ROM). Memory 1030 may store computer-readable, computer-executable code 1035, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 1030 may particularly include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0135] Processor 1040 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, central processing units (CPUs), microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1040 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 1040. Processor 1040 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1030) to cause device 1005 to perform various functions (e.g., functions or tasks supporting methods for measuring self-interference and cross-link interference in the mmW band).

[0136] Code 1035 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 1035 may be stored in a non-transient computer-readable medium, such as system memory or other types of memory. In some cases, code 1035 may not be directly executed by processor 1040, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0137] Figure 11 A block diagram 1100 of an apparatus 1105 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to aspects of this disclosure. Apparatus 1105 may be an example of aspects of base station 105 as described herein. Apparatus 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1120. Apparatus 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0138] Receiver 1110 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to methods for measuring self-interference and cross-link interference in the mmW band). This information can be transmitted to other components of device 1105. Receiver 1110 can be a reference... Figure 14 Examples of various aspects of the transceiver 1420 described. The receiver 1110 may utilize a single antenna or an array of antennas.

[0139] Communication manager 1115 can select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; configure a first timeslot format at the first UE with the first SFI and configure a second timeslot format at the second UE with the second SFI; and receive measurement reports for one or more of the first UE or the second UE, the measurement reports indicating one or more interference measurements based on the first SFI or the second SFI. Communication manager 1115 may be an example of aspects of communication manager 1410 described herein.

[0140] The communication manager 1115 or its sub-components may be implemented in hardware, processor-executable code (e.g., software or firmware), or any combination thereof. If implemented in processor-executable code, the functionality of the communication manager 1115 or its sub-components may be performed by a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0141] The communication manager 1115 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 1115 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 1115 or its subcomponents may be combined with one or more other hardware components (including, but not limited to, I / O components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof).

[0142] Transmitter 1120 can transmit signals generated by other components of device 1105. In some examples, transmitter 1120 may coexist with receiver 1110 in a transceiver module. For example, transmitter 1120 may be a reference... Figure 14 Examples of various aspects of the transceiver 1420 described. The transmitter 1120 may utilize a single antenna or an array of antennas.

[0143] Figure 12 A block diagram 1200 of an apparatus 1205 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to aspects of this disclosure. Apparatus 1205 may be an example of aspects of apparatus 1105 or base station 105 as described herein. Apparatus 1205 may include a receiver 1210, a communication manager 1215, and a transmitter 1235. Apparatus 1205 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0144] Receiver 1210 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to methods for measuring self-interference and cross-link interference in the mmW band). This information can be transmitted to other components of device 1205. Receiver 1210 can be a reference... Figure 14 Examples of various aspects of the transceiver 1420 described. The receiver 1210 may utilize a single antenna or an array of antennas.

[0145] Communication manager 1215 may be an example of aspects of communication manager 1115 as described herein. Communication manager 1215 may include SFI manager 1220, configuration manager 1225, and measurement report manager 1230. Communication manager 1215 may be an example of aspects of communication manager 1410 as described herein.

[0146] SFI manager 1220 can select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on the compatibility of measuring interference between the first UE and the second UE at one or more of the first UE or the second UE.

[0147] Configuration Manager 1225 can use the first SFI to configure the first time slot format at the first UE, and use the second SFI to configure the second time slot format at the second UE.

[0148] The measurement report manager 1230 can receive measurement reports for one or more of the first UE or the second UE, which indicate one or more interference measurements based on the first SFI or the second SFI.

[0149] Transmitter 1235 can transmit signals generated by other components of device 1205. In some examples, transmitter 1235 may coexist with receiver 1210 in a transceiver module. For example, transmitter 1235 may be a reference... Figure 14 Examples of various aspects of the transceiver 1420 described. The transmitter 1235 may utilize a single antenna or an array of antennas.

[0150] Figure 13 A block diagram 1300 of a communication manager 1305 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to aspects of this disclosure. The communication manager 1305 may be an example of aspects of the communication manager 1115, communication manager 1215, or communication manager 1410 described herein. The communication manager 1305 may include an SFI manager 1310, a configuration manager 1315, a measurement report manager 1320, a power level manager 1325, and a beam manager 1330. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0151] SFI manager 1310 can select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first and second SFIs are selected based on compatibility for measuring interference between the first and second UEs at one or more of the first or second UEs. In some cases, the first symbol of each of the first and second SFIs is configured as a downlink symbol, wherein each of the first and second UEs receives information from the base station during the first symbol period. In some cases, the second symbol of the first UE is configured for uplink transmission from the first UE, and the second UE is configured for downlink reception during the second symbol period.

[0152] Configuration manager 1315 can use a first SFI to configure a first timeslot format at the first UE and a second SFI to configure a second timeslot format at the second UE. In some examples, configuration manager 1315 can configure the first or second UE for uplink transmission or downlink reception in the first or second symbol via reconfiguration of flexible symbols or gap symbols. In some cases, the second UE is configured to measure interference from concurrent transmissions from the first UE and the base station during the second symbol, relative to a baseline scenario where downlink reception is performed solely from the base station during the first symbol.

[0153] In some cases, the number of symbols or time slots configured for cross-link interference measurement using the first SFI and the second SFI is based on the SCS of the first UE or the second UE. In some cases, the number of symbols or time slots configured for cross-link interference measurement using the first SFI and the second SFI is based on the interference estimation quality associated with the measurement report. In some cases, the interference estimation quality is a band-specific, bandwidth-specific, or link-specific estimation quality. In some cases, the first UE and the second UE are the same UE, and the first carrier uses a first frequency band and the second carrier uses a second frequency band different from the first frequency band.

[0154] Measurement report manager 1320 may receive measurement reports for one or more of a first UE or a second UE, the measurement reports indicating one or more interference measurements based on a first SFI or a second SFI. In some examples, the measurement report indicates cross-link interference measurements of the first UE based on measurement differences between a first symbol and a second symbol. In some examples, measurement report manager 1320 may receive a request from one or more of the first UE or the second UE to perform interference measurements for one or more SFIs, and wherein the selection and configuration are performed in response to the request. In some cases, the measurement report is received from the second UE and provides one or more of the following: an indication of a compatible set of SFIs based on interference measurements at the second UE, a first interference estimate associated with a first symbol that the first UE does not transmit in the time slot, a second interference estimate associated with a second symbol that the first UE transmits uplink communication in the time slot, or any combination thereof.

[0155] The power level manager 1325 can set the power level used for measuring symbols to provide consistent interference measurements. In some cases, the power level at the first UE is selected based on the first SFI to configure for compatibility of measuring interference between the first UE and the second UE.

[0156] The beam manager 1330 can identify the beam pairs and beamforming parameters of the first UE and the second UE to provide consistent transmission at least during the portion of the first SFI and the second SFI used to measure cross-link interference between the first UE and the second UE.

[0157] Figure 14 A diagram of a system 1400 including a device 1405 supporting methods for measuring self-interference and cross-link interference in the mmW band is shown according to various aspects of this disclosure. Device 1405 may be an example of device 1105, device 1205, or base station 105 as described herein, or a component including the aforementioned devices. Device 1405 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1410, a network communication manager 1415, a transceiver 1420, an antenna 1425, a memory 1430, a processor 1440, and an inter-station communication manager 1445. These components may be in electronic communication via one or more buses (e.g., bus 1450).

[0158] The communication manager 1410 can select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; configure a first timeslot format at the first UE with the first SFI and configure a second timeslot format at the second UE with the second SFI; and receive a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

[0159] The network communication manager 1415 can manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1415 can manage the delivery of data communication by client devices (such as one or more UEs 115).

[0160] Transceiver 1420 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 1420 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1420 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.

[0161] In some cases, the wireless device may include a single antenna 1425. However, in other cases, the device may have more than one antenna 1425, which may be able to transmit or receive multiple wireless transmissions concurrently.

[0162] Memory 1430 may include RAM, ROM, or a combination thereof. Memory 1430 may store computer-readable code 1435 including instructions that, when executed by a processor (e.g., processor 1440), cause the device to perform the various functions described herein. In some cases, memory 1430 may particularly include a BIOS that controls basic hardware or software operation, such as interaction with peripheral components or devices.

[0163] Processor 1440 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1440 may be configured to use a memory controller to operate a memory array. In some cases, the memory controller may be integrated into processor 1440. Processor 1440 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1430) to cause device 1405 to perform various functions (e.g., functions or tasks supporting methods for measuring self-interference and cross-link interference in the mmW band).

[0164] Inter-site communication manager 1445 manages communication with other base stations 105 and may include a controller or scheduler for cooperating with other base stations 105 to control communication with UE 115. For example, inter-site communication manager 1445 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, inter-site communication manager 1445 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.

[0165] Code 1435 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 1435 may be stored in a non-transient computer-readable medium, such as system memory or other types of memory. In some cases, code 1435 may not be directly executed by processor 1440, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0166] Figure 15 A flowchart illustrating method 1500 for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, is shown. Operation of method 1500 can be implemented by base station 105 or its components as described herein. For example, operation of method 1500 can be implemented by referring to... Figures 11 to 14 The described communication manager is used to perform this. In some examples, the base station can execute a set of instructions to control the functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0167] Optionally, at 1505, the base station may receive a request from one or more of the first UE or the second UE to perform interference measurements against one or more SFIs. Operation of 1505 may be performed according to the methods described herein. In some examples, aspects of operation of 1505 may be determined by reference to... Figures 11 to 14 The described measurement report manager is used to perform this.

[0168] In 1510, the base station can select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE. Operation of 1510 can be performed according to the method described herein. In some examples, aspects of the operation of 1510 can be determined by referring to... Figures 11 to 14 The SFI manager is described to perform this action. In some examples, this selection is performed in response to the request.

[0169] In step 1515, the base station can use a first SFI to configure a first timeslot format at the first UE, and a second SFI to configure a second timeslot format at the second UE. The operation of step 1515 can be performed according to the method described herein. In some examples, aspects of the operation of step 1515 can be described as follows: Figures 11 to 14 The configuration manager described is used to execute this. In some examples, the configuration is executed in response to the request.

[0170] At 1520, the base station may receive a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI. Operation of 1520 may be performed according to the method described herein. In some examples, aspects of the operation of 1520 may be determined by reference to... Figures 11 to 14 The described measurement report manager is used to perform this.

[0171] Figure 16 A flowchart illustrating method 1600 for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, is shown. Operation of method 1600 can be implemented by base station 105 or its components as described herein. For example, operation of method 1600 can be implemented by referring to... Figures 11 to 14 The described communication manager is used to perform this. In some examples, the base station can execute a set of instructions to control the functional elements of the base station to perform the following functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the following functions.

[0172] In step 1605, the base station can select a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE. Operation of step 1605 can be performed according to the method described herein. In some examples, aspects of operation of step 1605 can be determined by reference to... Figures 11 to 14 The SFI manager described is used to execute this.

[0173] In 1610, the base station can use a first SFI to configure a first timeslot format at the first UE, and a second SFI to configure a second timeslot format at the second UE. The operation of 1610 can be performed according to the method described herein. In some examples, aspects of the operation of 1610 can be described as follows: Figures 11 to 14 The configuration manager described herein is used for execution. In some cases, the first symbol of each of the first SFI and the second SFI is configured as a downlink symbol, wherein each of the first UE and the second UE receives information from the base station during the first symbol period. In some cases, the second symbol of the first UE is configured for uplink transmission from the first UE, and the second UE is configured for downlink reception during the second symbol period.

[0174] In step 1615, the base station can configure the second UE to measure interference from concurrent transmissions from the first UE and the base station during the second symbol period, relative to a baseline scenario where downlink reception is performed solely from the base station during the first symbol period. Operation of step 1615 can be performed according to the method described herein. In some examples, aspects of operation of step 1615 can be derived from, as referenced... Figures 11 to 14 The configuration manager described is used to execute this.

[0175] In 1620, the base station can configure the first or second UE to perform uplink transmission or downlink reception in the first or second symbol via reconfiguration of flexible symbols or gap symbols. The operation of 1620 can be performed according to the methods described herein. In some examples, aspects of the operation of 1620 can be described as follows: Figures 11 to 14 The configuration manager described is used to execute this.

[0176] At 1625, the base station may receive a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI. Operation of 1625 may be performed according to the method described herein. In some examples, aspects of the operation of 1625 may be determined by reference to... Figures 11 to 14 The described measurement report manager is used to perform this. In some cases, the measurement report indicates the cross-link interference measurement of the first UE based on the measurement difference between the first symbol and the second symbol.

[0177] Figure 17 A flowchart illustrating method 1700 for measuring self-interference and cross-link interference in the mmW band, according to various aspects of this disclosure, is shown. Operation of method 1700 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1700 can be implemented by, as referenced... Figures 7 to 10The described communication manager is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.

[0178] Optionally, at 1705, the UE may transmit a request to the base station to perform interference measurements for one or more time slot formats. Operation of 1705 may be performed according to the methods described herein. In some examples, aspects of operation of 1705 may be derived from, as referenced... Figures 7 to 10 The described measurement report manager is used to perform this.

[0179] At 1710, the UE may receive configuration information from the base station indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI. Operation of 1710 may be performed according to the method described herein. In some examples, aspects of the operation of 1710 may be determined by reference to... Figures 7 to 10 The configuration manager described is used to execute this. In some examples, the configuration information is received in response to the request.

[0180] At 1715, the UE may transmit a measurement report to the base station, which provides one or more of the following: a first interference measurement, a second interference measurement, an indication of a compatible SFI set based on the first interference estimate and the second interference estimate, wherein the first interference estimate is based on the first interference measurement during a first measurement symbol, and the second interference estimate is based on the second interference measurement during a second measurement symbol. Operation of 1715 may be performed according to the methods described herein. In some examples, aspects of the operation of 1715 may be provided by reference to... Figures 7 to 10 The described measurement report manager is used to perform this.

[0181] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are also possible. Furthermore, aspects from two or more methods can be combined.

[0182] The following provides an overview of the various aspects of this disclosure:

[0183] Aspect 1: A method for wireless communication at a base station, comprising: selecting a first SFI for communicating with a first UE via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected at least in part based on compatibility for measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; configuring a first timeslot format at the first UE with the first SFI and configuring a second timeslot format at the second UE with the second SFI; and receiving a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

[0184] Aspect 2: The method of Aspect 1, wherein a first symbol of each of the first SFI and the second SFI is configured as a downlink symbol, wherein each of the first UE and the second UE receives information from the base station during the first symbol period; a second symbol of the first UE is configured for uplink transmission from the first UE, and the second UE is configured for downlink reception during the second symbol period; and the second UE is configured to measure interference from concurrent transmissions from the first UE and the base station during the second symbol period relative to a baseline case where downlink reception is performed solely from the base station during the first symbol period.

[0185] Aspect 3: The method of aspect 2 further includes: configuring the first or second UE to perform uplink transmission or downlink reception in the first or second symbol via flexible or gapped symbol reconfiguration; and wherein the measurement report indicates the cross-link interference measurement of the first UE based at least in part on the measurement difference between the first symbol and the second symbol.

[0186] Aspect 4: The method of any of Aspects 1 to 3, wherein the beamforming parameters of the first UE and the second UE are configured to be the same at least during the portion of the first SFI and the second SFI used to measure cross-link interference between the first UE and the second UE.

[0187] Aspect 5: The method of any of Aspects 1 to 4, wherein the number of symbols or time slots configured for cross-link interference measurement by the first SFI and the second SFI is at least partially based on the SCS of the first UE or the second UE.

[0188] Aspect 6: The method of any of Aspects 1 to 5, wherein the number of symbols or time slots configured for cross-link interference measurement is at least partially based on the interference estimation quality associated with the measurement report.

[0189] Aspect 7: The method of aspect 6, wherein the interference estimation quality is an estimation quality that varies by frequency band, by bandwidth portion, or by link.

[0190] Aspect 8: The method of any of Aspects 1 to 7, wherein the power level at the first UE is configured at least in part based on the first SFI being selected for compatibility of measuring interference between the first UE and the second UE.

[0191] Aspect 9: The method of any of Aspects 1 to 8 further includes: receiving from one or more of the first UE or the second UE a request to perform interference measurements for one or more SFIs, wherein the selection and the configuration are performed in response to the request.

[0192] Aspect 10: The method of aspect 9, wherein the measurement report is received from the second UE and provides one or more of the following: an indication of a compatible SFI set based on interference measurements at the second UE, a first interference estimate associated with a first symbol that the first UE does not transmit in the time slot, a second interference estimate associated with a second symbol that the first UE transmits uplink communication in the time slot, or any combination thereof.

[0193] Aspect 11: The method of any of Aspects 1 to 10, wherein the first UE and the second UE are the same UE, and the first carrier uses a first frequency band and the second carrier uses a second frequency band different from the first frequency band.

[0194] Aspect 12: A method for wireless communication at a second UE, comprising: receiving configuration information from a base station, the configuration information indicating a first SFI for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; and transmitting a measurement report to the base station, the measurement report providing one or more of a first interference measurement, a second interference measurement, an indication of a set of compatible SFIs at least partially based on a first interference estimate and a second interference estimate, wherein the first interference estimate is at least partially based on a first interference measurement during a first measurement symbol, and the second interference estimate is at least partially based on a second interference measurement during a second measurement symbol.

[0195] Aspect 13: The method of aspect 12, wherein a first measurement symbol is configured as a downlink symbol for receiving information from the base station at a second UE during the first measurement symbol period; a second measurement symbol is configured for uplink transmission at the first UE and is configured as a downlink symbol for receiving information from the base station at the second UE; and the measurement report indicates interference from concurrent transmissions from the first UE and the base station during the second measurement symbol period relative to a baseline case of downlink reception solely from the base station during the first measurement symbol period.

[0196] Aspect 14: The method of aspect 13 further includes: receiving further configuration information from the base station, the further configuration information configuring the uplink transmission or downlink reception in the first or second measurement symbol via flexible or gap symbol reconfiguration; and wherein the measurement report indicates the cross-link interference measurement of the UE based at least in part on the measurement difference between the first measurement symbol and the second measurement symbol.

[0197] Aspect 15: The method of any of Aspects 12 to 14, wherein the received beamforming parameters of the second UE are configured to be the same at least during the first measurement symbol and the second measurement symbol.

[0198] Aspect 16: The method of any of Aspects 12 to 15, wherein the measurement report indicates one or more of the following: a set of SFIs compatible with communication with the second UE, a set of beam pairs compatible with communication with the second UE, or any combination thereof.

[0199] Aspect 17: The method of any of Aspects 12 to 16, wherein the number of symbols or time slots configured for cross-link measurements of the first SFI is at least partially based on the SCS of the second UE.

[0200] Aspect 18: The method of any of Aspects 12 to 17, wherein the number of symbols or time slots configured for cross-link measurements is based at least in part on the interference estimation quality associated with the measurement report.

[0201] Aspect 19: The method of aspect 18, wherein the interference estimation quality is an estimation quality that varies by frequency band, by bandwidth portion, or by link.

[0202] Aspect 20: The method of any of Aspects 12 to 19 further includes: transmitting to the base station a request to perform interference measurements for one or more time slot formats, wherein the configuration information is received in response to the request.

[0203] Aspect 21: An apparatus for wireless communication at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any one of Aspects 1 to 11.

[0204] Aspect 22: An apparatus for wireless communication at a base station, comprising at least one means for performing the method as described in any one of aspects 1 to 11.

[0205] Aspect 23: A non-transient computer-readable medium storing code for wireless communication at a base station, the code including instructions executable by a processor to perform methods as described in any one of Aspects 1 to 11.

[0206] Aspect 24: An apparatus for wireless communication at a second UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any of Aspects 12 to 20.

[0207] Aspect 25: An apparatus for wireless communication at a second UE, comprising at least one means for performing a method as described in any of Aspects 12 to 20.

[0208] Aspect 26: A non-transient computer-readable medium storing code for wireless communication at a second UE, the code including instructions executable by a processor to perform methods as described in any of Aspects 12 to 20.

[0209] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein can also be applied to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0210] The information and signals described herein can be represented using any of a wide variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.

[0211] The various illustrative boxes and components described herein can be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in alternatives, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration).

[0212] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored or transmitted as one or more instructions or code on a computer-readable medium. Other examples and implementations fall within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions can also be physically located in various locations, including being distributed such that different parts of the function are implemented at different physical locations.

[0213] Computer-readable media includes both non-transient computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transient storage media can be any available medium accessible to a general-purpose or special-purpose computer. By way of example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transient medium that can be used to carry or store desired program code in the form of instructions or data structures and is accessible to a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Similarly, any connection is also legitimately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then that coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used in this article, disk and disc include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks often magnetically reproduce data while discs optically reproduce data using lasers. Combinations of these media are also included within the scope of computer-readable media.

[0214] As used herein (including in the claims), the word "or" in an enumeration of items (e.g., an enumeration of items accompanied by phrases such as "at least one of" or "one or more of") indicates an inclusive enumeration, such that an enumeration of at least one of, for example, 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). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0215] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, components of the same type may be distinguished by a dash following the reference numeral and a second reference numeral used to differentiate between similar components. If only the first reference numeral is used in the description, the description may apply to any of the similar components having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.

[0216] This document, illustrated with reference to the accompanying drawings, describes exemplary configurations but does not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not imply "superior" or "outperforming" other examples. This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0217] The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the universal principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a network node, comprising: A first time slot format index (SFI) for communicating with a first user equipment (UE) via a first carrier and a second SFI for communicating with a second UE via a second carrier are selected, wherein the first SFI and the second SFI are selected at least in part based on the compatibility of measuring interference between the first UE and the second UE at one or more of the first UE or the second UE. The first SFI is used to configure the first time slot format at the first UE, and the second SFI is used to configure the second time slot format at the second UE, wherein: The first symbol of each of the first SFI and the second SFI is configured as a downlink symbol, wherein each of the first UE and the second UE receives information from the network node during the first symbol period; The second symbol of the first UE is configured for uplink transmission from the first UE, and the second UE is configured for downlink reception during the second symbol period; and The second UE is configured to measure interference from concurrent transmissions from the first UE and the network node during the second symbol period, relative to a baseline scenario where downlink reception is performed solely from the network node during the first symbol period; and Receive a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

2. The method of claim 1, further comprising: The uplink transmission or downlink reception of the first UE or the second UE in the first symbol or the second symbol is configured via flexible or gapped symbol reconfiguration; and The measurement report indicates the cross-link interference measurement of the first UE based at least in part on the measurement difference between the first symbol and the second symbol.

3. The method of claim 1, wherein: The beamforming parameters of the first UE and the second UE are configured to be the same at least during the portion of the first SFI and the second SFI used to measure cross-link interference between the first UE and the second UE.

4. The method of claim 1, wherein the number of symbols or time slots configured for cross-link interference measurement of the first SFI and the second SFI is at least partially based on the subcarrier spacing (SCS) of the first UE or the second UE.

5. The method of claim 1, wherein the number of symbols or time slots configured for cross-link interference measurement of the first SFI and the second SFI is at least partially based on the interference estimation quality associated with the measurement report.

6. The method of claim 5, wherein the interference estimation quality is an estimation quality that varies depending on the frequency band, the bandwidth portion, or the link.

7. The method of claim 1, wherein the power level at the first UE is configured at least in part based on the first SFI being selected for measuring the compatibility of interference between the first UE and the second UE.

8. The method of claim 1, further comprising: The system receives a request from one or more of the first UE or the second UE to perform interference measurements for one or more SFIs, wherein selecting the first SFI and the second SFI, and configuring the first time slot format and the second time slot format are performed in response to the request.

9. The method of claim 8, wherein the measurement report is received from the second UE and provides one or more of the following: an indication of a compatible SFI set based on interference measurements at the second UE, a first interference estimate associated with a first symbol that the first UE does not transmit in the time slot, or a second interference estimate associated with a second symbol that the first UE transmits uplink communication in the time slot.

10. The method of claim 1, wherein the first UE and the second UE are the same UE, and wherein the first carrier uses a first frequency band and the second carrier uses a second frequency band different from the first frequency band.

11. A method for conducting wireless communication at a second user equipment (UE), comprising: Configuration information is received from a network node, the configuration information indicating a first slot format index (SFI) for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; as well as A measurement report is transmitted to the network node, the measurement report providing one or more of a first interference measurement, a second interference measurement, or an indication of a compatible SFI set at least partially based on a first interference estimate and a second interference estimate, wherein the first interference estimate is at least partially based on the first interference measurement during the first measurement symbol, and the second interference estimate is at least partially based on the second interference measurement during the second measurement symbol, wherein: The first measurement symbol is configured as a downlink symbol for receiving information from the network node at the second UE during the first measurement symbol period; The second measurement symbol is configured for uplink transmission at the first UE and is also configured as a downlink symbol for receiving information from the network node at the second UE; and The measurement report indicates interference from concurrent transmissions from the first UE and the network node during the second measurement symbol, relative to a baseline scenario where downlink reception is performed solely from the network node during the first measurement symbol.

12. The method of claim 11, further comprising: Further configuration information is received from the network node, which configures the uplink transmission or downlink reception in the first or second measurement symbol via flexible or gapped symbol reconfiguration; and The measurement report indicates the cross-link interference measurement of the UE based at least in part on the measurement difference between the first measurement symbol and the second measurement symbol.

13. The method of claim 11, wherein: The receive beamforming parameters of the second UE are configured to be the same at least during the first measurement symbol and the second measurement symbol.

14. The method of claim 11, wherein the measurement report indicates one or more of an SFI set compatible with communication with the second UE, or a beam pair set compatible with communication with the second UE.

15. The method of claim 11, wherein the number of symbols or time slots configured for cross-link measurement by the first SFI is at least partially based on the subcarrier spacing (SCS) of the second UE.

16. The method of claim 11, wherein the number of symbols or time slots configured for cross-link measurements by the first SFI is at least partially based on the interference estimation quality associated with the measurement report.

17. The method of claim 16, wherein the interference estimation quality is an estimation quality that varies by frequency band, by bandwidth portion, or by link.

18. The method of claim 11, further comprising: A request to perform interference measurements for one or more time slot formats is transmitted to the network node, wherein the configuration information is received in response to the request.

19. An apparatus for wireless communication at a network node, comprising: Means for selecting a first slot format index (SFI) for communicating with a first user equipment (UE) via a first carrier and a second SFI for communicating with a second UE via a second carrier, wherein the first SFI and the second SFI are selected at least in part based on compatibility of measuring interference between the first UE and the second UE at one or more of the first UE or the second UE; A means for configuring a first time slot format at the first UE using the first SFI and configuring a second time slot format at the second UE using the second SFI, wherein: The first symbol of each of the first SFI and the second SFI is configured as a downlink symbol, wherein each of the first UE and the second UE receives information from the network node during the first symbol period; The second symbol of the first UE is configured for uplink transmission from the first UE, and the second UE is configured for downlink reception during the second symbol period; and The second UE is configured to measure interference from concurrent transmissions from the first UE and the network node during the second symbol period, relative to a baseline scenario where downlink reception is performed solely from the network node during the first symbol period; and A means for receiving a measurement report for one or more of the first UE or the second UE, the measurement report indicating one or more interference measurements based on the first SFI or the second SFI.

20. The apparatus of claim 19, further comprising: A means for configuring the uplink transmission or downlink reception of the first UE or the second UE in the first symbol or the second symbol via reconfiguration of flexible or gapped symbols; and The measurement report indicates the cross-link interference measurement of the first UE based at least in part on the measurement difference between the first symbol and the second symbol.

21. The device of claim 19, wherein the beamforming parameters of the first UE and the second UE are configured to be the same at least during the portion of the first SFI and the second SFI used to measure cross-link interference between the first UE and the second UE.

22. The device of claim 19, wherein the number of symbols or time slots configured for cross-link interference measurement of the first SFI and the second SFI is at least partially based on the subcarrier spacing (SCS) of the first UE or the second UE.

23. The device of claim 19, wherein the number of symbols or time slots configured for cross-link interference measurement of the first SFI and the second SFI is at least partially based on the interference estimation quality associated with the measurement report.

24. An apparatus for wireless communication at a network node, comprising means for performing the method as described in any one of claims 6-10.

25. An apparatus for wireless communication at a second user equipment (UE), comprising: A means for receiving configuration information from a network node, the configuration information indicating a first slot format index (SFI) for communication via a first carrier, and indicating at least a first measurement symbol and a second measurement symbol within the indicated SFI; as well as A means for transmitting a measurement report to the network node, the measurement report providing one or more of a first interference measurement, a second interference measurement, or an indication of a compatible SFI set at least partially based on a first interference estimate and a second interference estimate, wherein the first interference estimate is at least partially based on the first interference measurement during the first measurement symbol, and the second interference estimate is at least partially based on the second interference measurement during the second measurement symbol, wherein: The first measurement symbol is configured as a downlink symbol for receiving information from the network node at the second UE during the first measurement symbol period; The second measurement symbol is configured for uplink transmission at the first UE and is also configured as a downlink symbol for receiving information from the network node at the second UE; and The measurement report indicates interference from concurrent transmissions from the first UE and the network node during the second measurement symbol, relative to a baseline scenario where downlink reception is performed solely from the network node during the first measurement symbol.

26. The apparatus of claim 25, further comprising: A means for receiving further configuration information from the network node, the further configuration information configuring the uplink transmission or downlink reception in the first measurement symbol or the second measurement symbol via flexible or gapped symbol reconfiguration; and The measurement report indicates the cross-link interference measurement of the UE based at least in part on the measurement difference between the first measurement symbol and the second measurement symbol.

27. The device of claim 25, wherein the receive beamforming parameters of the second UE are configured to be the same at least during the first measurement symbol and the second measurement symbol.

28. An apparatus for wireless communication at a second user equipment (UE), comprising means for performing the method as described in any one of claims 14-18.

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