Multi-port configuration in cross-link interference (CLI) measurement
By performing CLI measurements on multiple ports and sending reports, the problem of single configuration of CLI measurement resources in the prior art is solved, and detection capabilities and system bandwidth utilization are improved.
Patent Information
- Application Number
- CN202080100349.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-04-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2040-04-30
AI Technical Summary
In the prior art, the cross-link interference (CLI) measurement resource configuration of the victim UE is single, resulting in an increase in the possibility of events not being triggered, and the RRC configuration overhead is too large to effectively detect and reduce CLI.
Perform CLI measurements on multiple ports and send CLI measurement reports based on multiple measurement values. By performing measurements and reporting on multiple CLI resources, reducing overhead and improving detection capabilities.
By performing CLI measurements on multiple ports, CLI can be detected better, reporting overhead can be reduced, and available system bandwidth for wireless communication systems can be increased.
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Figure CN115486011B_ABST
Abstract
Description
Technical Field
[0001] Aspects of the present disclosure generally relate to wireless communication systems, and more particularly to cross-link interference (CLI) measurements.
[0002] Description of Related Art
[0003] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. A wireless multi-access communication system may include multiple base stations or network access nodes, each of which simultaneously supports the communication of multiple communication devices, which may also be referred to as user equipment (UE). These systems may be capable of supporting communication with multiple UEs by sharing available system resources such as time, frequency, and power. Examples of such multi-access systems include fourth-generation (4G) systems such as Long-Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth-generation (5G) systems that may be referred to as New Radio (NR) systems. These systems may employ 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 spread orthogonal frequency division multiplexing (DFT-S-OFDM).
[0004] A wireless communication network may include multiple base stations or Node Bs that may support the communication of multiple user equipment (UE). The UE may communicate with the base station via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, while the uplink (or reverse link) refers to the communication link from the UE to the base station.
[0005] The base station may send data and control information to the UE on the downlink and / or may receive data and control information from the UE on the uplink. On the downlink, the transmission from the base station may encounter interference from transmissions from adjacent base stations or from other radio frequency (RF) transmitters. On the uplink, the transmission from the UE may encounter interference from the uplink transmissions of other UEs communicating with adjacent base stations or from other radio RF transmitters. Such interference may degrade the performance of both the downlink and the uplink.
[0006] Due to the proliferation of wireless communication applications and a greater number and density of wireless communication devices within a coverage area, managing interference between devices can become more challenging. In some example scenarios, a UE referred to as the "victim UE" may be receiving downlink (DL) communication from a base station while another UE referred to as the "attacker UE" is transmitting uplink (UL) communication, which interferes with the DL communication. As a result, UL symbols transmitted by the attacker UE may conflict with DL symbols received by the victim UE. This interference between DL and UL can be referred to as cross-link interference (CLI). The victim UE may be configured to perform CLI measurements to measure CLI based on CLI resource configuration received from the base station. Typically, the base station configures a single CLI resource for the victim UE to use to perform each CLI measurement, and each CLI measurement may be performed periodically and may trigger an event or periodic reporting of CLI measurement results. For example, the event may be that there is a CLI amount above a threshold at the victim UE. However, the single CLI resource may not be detected or trigger the event.
[0007] Additionally, at least some types of CLI resources of the victim UE are configured with a single port, which further increases the likelihood that the event is not triggered. For example, the network may configure multiple ports for the attacker UE for sounding reference signals (SRS) and configure a single SRS resource for the victim UE, such as a single SRS port corresponding to one of the multiple ports for SRS transmission from the attacker UE, to measure CLI. In some embodiments, if the victim UE is configured to receive SRS for CLI measurement, the victim UE SRS configuration for CLI measurement is independent of the SRS configuration of the attacker UE for transmission. When each port of the SRS of the attacker UE is configured separately, the radio resource control (RRC) CLI configuration overhead increases, and the victim UE may demodulate the SRS resources separately for all ports of the SRS of the attacker UE because the victim UE does not know that these resources are associated with the same attacker UE. SUMMARY OF THE DISCLOSURE
[0008] Some aspects of the present disclosure are summarized below to provide a basic understanding of the technologies discussed. This summary is not an extensive overview of all the expected features of the present disclosure and is neither intended to identify the key or critical elements of all aspects of the present disclosure nor to delineate the scope of any or all aspects of the present disclosure. Its sole purpose is to present some concepts of one or more aspects of the present disclosure in a summary form as a prelude to the more detailed description that is presented later.
[0009] One innovative aspect of the subject matter described in this disclosure can be implemented in a wireless communication method performed by a user equipment (UE). The method includes performing one or more cross-link interference (CLI) measurements on each of a plurality of ports to determine a plurality of measurement values for the plurality of ports. The method further includes sending a CLI measurement report based on the plurality of measurement values.
[0010] Another innovative aspect of the subject matter described in this disclosure can be implemented in a UE. The UE includes at least one processor and a memory coupled to the at least one processor and storing processor-readable instructions that, when executed by the at least one processor, are configured to perform one or more cross-link interference (CLI) measurements on each of a plurality of ports to determine a plurality of measurement values for the plurality of ports. The at least one processor is further configured to initiate the sending of a CLI measurement report based on the plurality of measurement values.
[0011] Another innovative aspect of the subject matter described in this disclosure can be implemented in a device configured for wireless communication. The device includes means for performing one or more cross-link interference (CLI) measurements on each of a plurality of ports to determine a plurality of measurement values for the plurality of ports. The device also includes means for sending a CLI measurement report based on the plurality of measurement values.
[0012] Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations including performing one or more cross-link interference (CLI) measurements on each of a plurality of ports to determine a plurality of measurement values for the plurality of ports. These operations further include sending a CLI measurement report based on the plurality of measurement values.
[0013] Another innovative aspect of the subject matter described in this disclosure can be implemented in a wireless communication method performed by a base station. The method includes sending a message to a user equipment (UE) that includes a cross-link interference (CLI) resource configuration indicating a plurality of ports for a plurality of CLI measurements. The method further includes receiving a CLI measurement report from the UE based on a plurality of CLI measurements performed by the UE via the plurality of ports.
[0014] Another innovative aspect of the subject matter described in this disclosure can be implemented in a base station. The base station includes at least one processor and a memory coupled to the at least one processor and storing processor-readable code that, when executed by the processor, is configured to initiate the sending of a message to a user equipment (UE) that includes a cross-link interference (CLI) resource configuration indicating a plurality of ports for a plurality of CLI measurements. The at least one processor is further configured to receive a CLI measurement report from the UE based on a plurality of CLI measurements performed by the UE via the plurality of ports.
[0015] Another innovative aspect of the subject matter described in this disclosure can be implemented in a device configured for wireless communication. The device includes means for sending a message to a user equipment (UE) that includes a cross-link interference (CLI) resource configuration indicating multiple ports for multiple CLI measurements. The device further includes means for receiving a CLI measurement report from the UE based on multiple CLI measurements performed by the UE via the multiple ports.
[0016] Another innovative aspect of the subject matter described in this disclosure can be implemented in a non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations including initiating the transmission of a message to a user equipment (UE) that includes a cross-link interference (CLI) resource configuration indicating multiple ports for multiple CLI measurements. The operations further include receiving a CLI measurement report from the UE based on multiple CLI measurements of the UE via the multiple ports.
[0017] Other aspects, features, and implementations of this disclosure will become apparent to those of ordinary skill in the art when considering the following description of specific example implementations of this disclosure in conjunction with the drawings. Although the features of this disclosure may be described with respect to specific implementations and drawings below, all implementations of this disclosure may include one or more of the advantageous features described herein. In other words, while one or more implementations may be described as having specific advantageous features, one or more of such features may be used in accordance with the various implementations of this disclosure described herein. In a similar manner, although example implementations may be described below as device, system, or method implementations, such example implementations may be implemented in a variety of devices, systems, and methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] A further understanding of the nature and advantages of this disclosure can be realized by reference to the following drawings. In the drawings, like components or features may have the same reference numeral. Further, various components of the same type can be distinguished by following the reference numeral with a dash and a second numeral that differentiates the similar components. If only the first reference numeral is used in the specification, the description applies to any one of the similar components having the same first reference numeral, regardless of the second reference numeral.
[0019] Figure 1 is a block diagram illustrating details of an example wireless communication system.
[0020] Figure 2 is a block diagram conceptually illustrating an example design of a base station and a user equipment (UE).
[0021] Figure 3 is a diagram illustrating an example related to cross-link interference (CLI).
[0022] Figure 4 The block diagram of an example wireless communication system that supports performing CLI measurements on multiple CLI resources according to some aspects.
[0023] Figure 5 A diagram illustrating an example of CLI measurements performed on multiple CLI resources according to some aspects.
[0024] Figure 6 A diagram illustrating an example of a CLI measurement style according to some aspects.
[0025] Figure 7 A diagram illustrating an example of CLI measurements performed on multiple CLI resources according to some aspects.
[0026] Figure 8 A flowchart illustrating an example process that supports performing CLI measurements on multiple CLI resources according to some aspects.
[0027] Figure 9 The block diagram of an example UE that supports performing CLI measurements on multiple CLI resources according to some aspects.
[0028] Figure 10 A flowchart showing an example process that supports configuring CLI resources to enable CLI measurements on multiple CLI resources according to some aspects.
[0029] Figure 11 The block diagram of an example base station that supports configuring CLI resources according to some aspects.
[0030] Like reference numerals in different figures indicate like elements. Detailed Description
[0031] Aspects of the present disclosure are described more fully hereinafter with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art can understand that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of any other aspect of the present disclosure or in combination with any other aspect of the present disclosure. For example, any number of the aspects set forth herein may be used to implement a device or practice a method. Additionally, the scope of the present disclosure is intended to cover devices or methods practiced using other structures, functions, or combinations of structures and functions in addition to the aspects of the present disclosure set forth herein. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0032] The present disclosure provides systems, apparatuses, methods, and computer-readable media for supporting multiple cross-link interference (CLI) measurements performed on multiple CLI resources. For example, the multiple CLI resources may include multiple sounding reference signal (SRS) resources, such as multiple SRS ports. By way of illustration, in some embodiments, a user equipment (UE) may receive a CLI resource configuration indicating the multiple CLI resources configured for the UE. In some embodiments, the CLI resource configuration may define, for the UE, such as the victim UE measuring the CLI, a multi-port SRS resource. The number of ports of the multi-port SRS resource may be the same as or less than the number of ports of the corresponding SRS from an attacker UE. The UE may perform one or more CLI measurements on each of the multiple ports to determine multiple measurements of the multiple CLI resources. The UE may then send a CLI measurement report to a base station based on the multiple measurements.
[0033] In some other embodiments, the multiple CLI resources, such as multiple SRS ports, are configured to be time-division multiplexed across multiple time slots, time-division multiplexed across multiple symbols, or a combination thereof. For example, the UE may be configured to switch between different CLI resources or different combinations of CLI resources for different time slots, different CLI resources or different combinations of CLI resources for different symbols, or a combination thereof. Additionally or alternatively, the UE may be configured to switch between multiple CLI resources based on or according to a pattern. For example, the pattern may be received at the UE from the base station, and the pattern may be a pattern defined by a standard or a pattern determined by the UE.
[0034] In some embodiments, the UE may individually determine the CLI measurement for each CLI resource, such as each SRS port, and report one or more individual CLI measurement values. In some other embodiments, the UE may combine one or more CLI measurement values and report a combined value. To combine the CLI measurement values, the UE may average the measurements across multiple CLI resources, determine the maximum measurement across multiple CLI resources, or a combination thereof. Additionally or alternatively, the UE may determine a combined measurement per time slot, a combined measurement per symbol, or a combination thereof.
[0035] In some embodiments, the UE may also include multiple receive (RX) antennas. In some such embodiments, the UE may combine measurements from multiple RX antennas, such as measurements from multiple RX antenna ports. For example, the UE may average the measurements across multiple RX antennas, determine the maximum measurement across multiple RX antennas, or a combination thereof. For example, the UE may average the measurements across multiple RX antennas, determine the maximum measurement across multiple RX antennas, or a combination thereof. Additionally or alternatively, the UE may combine the measurements of multiple RX antennas according to an identified precoder or beam. The precoder or beam may be indicated by the base station via an indicator. For example, the UE may receive from the base station a radio resource control (RRC), media access control (MAC)-control element (CE), or downlink control information (DCI) including the indicator. In some embodiments, the measurements of the RX antennas and the measurements of multiple CLI resources may both be combined. For example, the measurements of the RX antennas may be combined before or after the measurements of multiple CLI resources are combined.
[0036] Certain embodiments of the subject matter described in this disclosure may be implemented to achieve one or more of the following potential advantages. In some aspects, this disclosure provides techniques for supporting multiple CLI measurements performed on multiple CLI resources, such as multiple SRS resources. Performing multiple CLI measurements on multiple CLI resources may enable the UE to better detect CLIs from attacking UEs. Additionally, by combining or aggregating multiple CLI measurement values into one or more representative values, the UE may report the measured CLIs to the base station with less overhead than if the UE reported each CLI measurement for each CLI resource, which may increase the available system bandwidth in a wireless communication system.
[0037] This disclosure generally relates to providing or participating in licensed shared access between two or more wireless communication systems, also referred to as wireless communication networks. In various embodiments, these techniques and apparatuses may be used in wireless communication networks such as code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) networks, single-carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, fifth-generation (5G) or new radio (NR) networks (sometimes referred to as "5G NR" networks, systems, or devices), and other communication networks. As described herein, the terms "network" and "system" may be used interchangeably.
[0038] CDMA networks may implement radio technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, etc. UTRA includes Wideband CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers the IS-2000, IS-95, and IS-856 standards.
[0039] TDMA networks can implement radio technologies such as Global System for Mobile Communications (GSM). 3GPP has defined the standards for the GSM EDGE (Enhanced Data Rates for GSM Evolution) Radio Access Network (RAN), also known as GERAN. GERAN is the radio component of GSM or GSM EDGE, and the network that connects base stations (such as other examples like the Ater and Abis interfaces) and base station controllers (such as other examples like the A interface). The radio access network represents a component of the GSM network through which telephone calls and packet data to the Public Switched Telephone Network (PSTN) and the Internet are routed to the subscriber's mobile phone, also known as the user terminal or user equipment (UE). The network of a mobile phone operator can include one or more GERANs, which can be coupled to the UTRAN in the case of a UMTS or GSM network. Additionally, the operator network can include one or more LTE networks, or one or more other networks. Various different network types can use different Radio Access Technologies (RATs) and Radio Access Networks (RANs).
[0040] OFDMA networks can implement radio technologies such as evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, flash-OFDM, etc. UTRA, E-UTRA, and GSM are part of the Universal Mobile Telecommunications System (UMTS). In particular, Long Term Evolution (LTE) is the UMTS version that uses E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents provided by an organization called the "3rd Generation Partnership Project" (3GPP), and CDMA2000 is described in documents provided by an organization called the "3rd Generation Partnership Project 2" (3GPP2). These various radio technologies and standards are known or under development. For example, 3GPP is a collaboration among telecommunications association groups that aims to define globally applicable third-generation (3G) mobile phone specifications. 3GPP Long Term Evolution (LTE) is a 3GPP project that aims to improve the Universal Mobile Telecommunications System (UMTS) handset standard. 3GPP can define the specifications for next-generation mobile networks, mobile systems, and mobile devices. Certain aspects of the present disclosure may be described with reference to LTE, 4G, 5G, or NR technologies; however, the description is not intended to be limited to a specific technology or application, and one or more aspects described with reference to one technology can be understood to apply to another technology. In fact, one or more aspects of the present disclosure relate to shared access to the radio spectrum between networks using different radio access technologies or radio air interfaces.
[0041] The 5G network envisions diverse deployments, diverse spectrums, and diverse services and devices that can be realized using an OFDM-based unified air interface. To achieve these goals, in addition to developing new radio technologies for the 5G NR network, further enhancements to LTE and LTE-A are also considered. 5G NR will be able to scale to (1) provide coverage for massive Internet of Things (IoT) with ultra-high density (e.g., ~1 million nodes / km2), ultra-low complexity (e.g., ~10 bits / second), ultra-low power consumption (e.g., battery life of ~10 years or more), and deep coverage with the ability to reach challenging locations; (2) include mission-critical control with strong security for protecting sensitive personal, financial, or confidential information, ultra-high reliability (e.g., reliability of ~99.9999%), ultra-low latency (e.g., ~1 millisecond (ms)), and users with a wide range of mobility or lack thereof; and (3) enhanced mobile broadband, including ultra-high capacity (e.g., ~10 Tbps / km2), extreme data rates (e.g., multi-Gbps rates, 100+ Mbps user experience rate), and discovery and optimization of advanced depth perception.
[0042] 5G NR devices, networks, and systems can be implemented to use optimized OFDM-based waveform characteristics. These characteristics can include scalable parameter sets and transmission time intervals (TTIs); a general, flexible framework for efficiently multiplexing services and features in dynamic, low-latency time-division duplex (TDD) or frequency-division duplex (FDD) designs; and advanced radio technologies such as massive multiple-input multiple-output (MIMO), robust millimeter-wave (mmWave) transmission, advanced channel coding, and device-centric mobility. The scalability of the parameter sets in 5G NR and the expansion of the subcarrier spacing can effectively address the issues of operating different services across different spectrums and different deployments. For example, in various outdoor and macro-coverage deployments with less than 3 GHz FDD or TDD implementations, the subcarrier spacing may occur at 15 kHz over bandwidths such as 1, 5, 10, 20 MHz, etc. For other various outdoor and small-cell coverage deployments with TDD greater than 3 GHz, the subcarrier spacing may occur at 30 kHz over 80 or 100 MHz bandwidths. For other various indoor broadband implementations using TDD in the unlicensed portion of the 5 GHz band, the subcarrier spacing may occur at 60 kHz over 160 MHz bandwidths. Finally, for various deployments using millimeter-wave components for transmission with TDD at 28 GHz, the subcarrier spacing may occur at 120 kHz over 500 MHz bandwidths.
[0043] The scalable parameter sets of 5G NR contribute to scalable TTIs that can meet various latency and Quality of Service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. The effective multiplexing of long and short TTIs allows transmissions to start at symbol boundaries. 5G NR also envisions a self - contained integrated sub - frame design with uplink or downlink scheduling information, data, and acknowledgments in the same sub - frame. The self - contained integrated sub - frame supports communication in unlicensed or contention - based shared spectrum, and an adaptive uplink or downlink that can be flexibly configured on a per - cell basis to dynamically switch between uplink and downlink to meet current traffic demands.
[0044] For clarity, certain aspects of the apparatus and techniques may be described below with reference to example 5G NR implementations or in a 5G - centric manner, and 5G terminology may be used as illustrative examples in the following description sections; however, the description is not intended to be limited to 5G applications.
[0045] Furthermore, it should be understood that in operation, a wireless communication network adapted according to the concepts herein can operate in any combination of licensed or unlicensed spectrum depending on load and availability. Thus, it will be apparent to those of ordinary skill in the art that the systems, apparatus, and methods described herein can be applied to other communication systems and applications in addition to the specific examples provided.
[0046] Figure 1 is a block diagram showing details of an example wireless communication system. The wireless communication system may include a wireless network 100. The wireless network 100 may include, for example, a 5G wireless network. As understood by those skilled in the art, Figure 1 the components that appear in [the figure] are likely to have corresponding counterparts in other network arrangements, including, for example, cellular network arrangements and non - cellular network arrangements such as other examples of device - to - device, peer - to - peer, or ad hoc network arrangements.
[0047] Figure 1The illustrated wireless network 100 includes multiple base stations 105 and other network entities. A base station can be a station that communicates with a UE and can be referred to as an evolved Node B (eNB), a next-generation eNB (gNB), an access point, etc. Each base station 105 can provide communication coverage for a specific geographical area. In 3GPP, the term "cell" can refer to this specific geographical coverage area of a base station or the base station subsystem serving the coverage area, depending on the context in which the term is used. In an implementation of the wireless network 100 herein, the base stations 105 can be associated with the same operator or different operators, such that the wireless network 100 can include multiple operator wireless networks. Additionally, in an implementation of the wireless network 100 herein, the base stations 105 can use one or more of the same frequencies, such as one or more frequency bands in licensed spectrum, unlicensed spectrum, or a combination thereof, as adjacent cells to provide wireless communication. In some examples, an individual base station 105 or UE 115 can be operated by more than one network operation entity. In some other examples, each base station 105 and UE 115 can be operated by a single network operation entity.
[0048] A base station can provide communication coverage for a macro cell or a small cell such as a pico cell or a femto cell or other types of cells. A macro cell typically covers a relatively large geographical area, such as a geographical area with a radius of several kilometers, and can allow unrestricted access for UEs having a service subscription provided by a network provider. A small cell such as a pico cell typically will cover a relatively small geographical area and can allow unrestricted access for UEs having a service subscription provided by a network provider. A small cell such as a femto cell typically will also cover a relatively small geographical area, such as a home, and in addition to unrestricted access, can provide restricted access for UEs associated with the femto cell, such as UEs in a closed subscriber group (CSG), UEs for home users, etc. A base station for a macro cell can be referred to as a macro base station. A base station for a small cell can be referred to as a small cell base station, a pico base station, a femto base station, or a home base station. In Figure 1 the illustrated example, base stations 105d and 105e are conventional macro base stations, while base stations 105a to 105c are macro base stations enabled with one of three-dimensional (3D), full-dimensional (FD), or massive MIMO. Base stations 105a to 105c utilize their higher-dimensional MIMO capabilities to employ 3D beamforming in elevation and azimuth beamforming to increase coverage and capacity. Base station 105f is a small cell base station, which can be a home node or a portable access point. A base station can support one or more cells, such as two cells, three cells, four cells, etc.
[0049] Wireless network 100 may support synchronous or asynchronous operations. For synchronous operations, base stations may have similar frame timings, and transmissions from different base stations may be approximately aligned in time. For asynchronous operations, base stations may have different frame timings, and transmissions from different base stations may not be aligned in time. In some scenarios, the network may be enabled or configured to handle dynamic switching between synchronous and asynchronous operations.
[0050] UEs 115 are dispersed throughout wireless network 100, and each UE may be stationary or mobile. It should be understood that while mobile devices are typically referred to as user equipment (UE) in the standards and specifications promulgated by 3GPP, those skilled in the art may alternatively or otherwise refer to such devices as mobile stations (MS), subscriber stations, mobile units, subscriber units, radio units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals (AT), mobile terminals, wireless terminals, remote terminals, cellular phones, terminals, user agents, mobile clients, clients, or some other suitable term. In this document, a "mobile" device or UE does not necessarily need to have the ability to move and may be stationary. Some non-limiting examples of mobile devices, such as implementations that may include one or more of the UEs 115, include mobile phones, cellular phones, smart phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, laptop computers, personal computers (PC), notebooks, netbooks, smartbooks, tablet computers, and personal digital assistants (PDA). Mobile devices may additionally be "Internet of Things" (IoT) or "Internet of Everything" (IoE) devices, such as automobiles or other transportation vehicles, satellite radios, global positioning system (GPS) devices, logistics controllers, drones, multi-rotor helicopters, quad-rotor helicopters, smart energy or security devices, solar panels or solar arrays, municipal lighting, water, or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices, such as glasses, wearable cameras, smart watches, health or fitness trackers, mammalian implant devices, gesture tracking devices, medical devices, digital audio players (such as MP3 players), cameras, or gaming consoles, among other examples; and digital home or smart home devices, such as home audio, video, and multimedia devices, appliances, sensors, vending machines, smart lighting, home security systems, or smart meters, among other examples. In one aspect, a UE may be a device that includes a universal integrated circuit card (UICC). In another aspect, a UE may be a device that does not include a UICC. In some aspects, a UE that does not include a UICC may be referred to as an IoE device. Figure 1UEs 115a through 115d of the illustrated embodiments are examples of mobile smartphone-type devices that access the wireless network 100. A UE may be a machine specifically configured for connectivity communications, including machine type communications (MTC), enhanced MTC (eMTC), narrowband IoT (NB-IoT), etc. Figure 1 UEs 115e through 115k of the illustrated embodiments are examples of various machines configured for access to the 5G network 100 for communications.
[0051] A mobile device, such as UE 115, is capable of communicating with any type of base station, whether it is a macro base station, a pico base station, a femto base station, a relay station, etc. In Figure 1 , the communication link (represented as lightning) indicates the wireless transmission between the UE and the serving base station, which is the base station designated to serve the UE on the downlink or uplink, or for the desired transmission between base stations and the backhaul transmission between base stations. The backhaul communication between the base stations of the wireless network 100 may occur using a wired or wireless communication link.
[0052] When the 5G network 100 is operating, base stations 105a through 105c use 3D beamforming and coordinated spatial techniques, such as coordinated multipoint (CoMP) or multi-connectivity, to serve UEs 115a and UE115b. Macro base station 105d performs backhaul communication with base stations 105a through 105c and small cell base station 105f. Macro base station 105d also transmits multicast services subscribed to and received by UEs 115c and UE115d. Such multicast services may include mobile TV or streaming video, or may include other services for providing community information, such as weather emergencies or alerts, such as Amber alerts or Gray alerts.
[0053] The wireless network 100 of the illustrated embodiments supports mission-critical communications with ultra-reliable and redundant links for mission-critical devices such as UEs 115e that are drones. The redundant communication links with UE 115e include macro base station 105d and macro base station 105e, as well as small cell base station 105f. Other machine type devices, such as UE 115f (thermometer), UE115g (smart meter), and UE 115h (wearable device), may communicate directly with base stations such as small cell base station 105f and macro base station 105e through the wireless network 100, or communicate in a multi-hop configuration by relaying their information to the network through another user equipment, such as UE 115f that conveys temperature measurement information to the smart meter (i.e., UE 115g), and the temperature measurement information is then reported to the network through small cell base station 105f. The 5G network 100 may provide additional network efficiency through dynamic, low-latency TDD or FDD communications, such as in a vehicle-to-vehicle (V2V) mesh network between UEs 115i through 115k communicating with macro base station 105e.
[0054] Figure 2 is a block diagram conceptually illustrating an example design of base station 105 and UE 115. Base station 105 and UE 115 can be Figure 1 one of the base stations in and one of the UEs in. For the restricted association scenario (as described above), base station 105 can be Figure 1 the small cell base station 105f in, and UE 115 can be UE 115c or 115d operating in the service area of base station 105f. In order to access small cell base station 105f, UE 115c or 115d will be included in the list of accessible UEs of small cell base station 105f. Additionally, base station 105 can be some other type of base station. As Figure 2 shown, base station 105 can be equipped with antennas 234a through 234t, and UE 115 can be equipped with antennas 252a through 252r to facilitate wireless communication.
[0055] At base station 105, transmit processor 220 can receive data from data source 212 and control information from controller 240. The control information can be for other examples such as physical broadcast channel (PBCH), physical control format indicator channel (PCFICH), physical hybrid ARQ (automatic repeat request) indicator channel (PHICH), physical downlink control channel (PDCCH), enhanced physical downlink control channel (EPDCCH), or MTC physical downlink control channel (MPDCCH). The data can be for other examples such as PDSCH. Transmit processor 220 can process the data and control information, such as encoding and symbol mapping, to obtain data symbols and control symbols respectively. Additionally, transmit processor 220 can generate reference symbols such as for primary synchronization signal (PSS) and secondary synchronization signal (SSS) and cell-specific reference signal, etc. Transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing on the data symbols, control symbols, or reference symbols, if applicable, and can provide output symbol streams to modulators (MOD) 232a through 232t. For example, the spatial processing performed on the data symbols, control symbols, or reference symbols can include precoding. Each modulator 232 can process the corresponding output symbol stream for other examples such as OFDM to obtain an output sample stream. Each modulator 232 can additionally or alternatively process the output sample stream to obtain a downlink signal. For example, to process the output sample stream, each modulator 232 can convert, amplify, filter, and up-convert the output sample stream to obtain a downlink signal. The downlink signals from modulators 232a through 232t can be transmitted via antennas 234a through 234t respectively.
[0056] At the UE 115, antennas 252a through 252r may receive downlink signals from the base station 105 and may provide the received signals to demodulators (DEMOD) 254a through 254r, respectively. Each demodulator 254 may condition the corresponding received signal to obtain input samples. For example, to condition the corresponding received signal, each demodulator 254 may filter, amplify, down-convert, and digitize the corresponding received signal to obtain input samples. Each demodulator 254 may further process the input samples, such as OFDM and the like, to obtain received symbols. The MIMO detector 256 may obtain the received symbols from demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide the detected symbols. The receive processor 258 may process the detected symbols, provide the decoded data of the UE 115 to the data sink 260, and provide the decoded control information to the controller 280. For example, to process the detected symbols, the receive processor 257 may demodulate, de-interleave, and decode the detected symbols.
[0057] On the uplink, at the UE 115, the transmit processor 264 may receive and process data (e.g., for the physical uplink shared channel (PUSCH)) from the data source 262 and receive and process control information (e.g., for the physical uplink control channel (PUCCH)) from the controller 280. Additionally, the transmit processor 264 may generate reference symbols for reference signals. If applicable, the symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, further processed by modulators 254a through 254r (such as other examples like SC-FDM), and transmitted to the base station 105. At the base station 105, if applicable, the uplink signal from the UE 115 may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236, and further processed by the receive processor 238 to obtain the decoded data and control information transmitted by the UE 115. The receive processor 238 may provide the decoded data to the data sink 239 and provide the decoded control information to the controller 240.
[0058] The controller 240 and the controller 280 may direct operations at the base station 105 and the UE 115, respectively. The controller 240 or other processors and modules at the base station 105 or the controller 280 or other processors and modules at the UE 115 may execute or direct the execution of the various processes of the techniques described herein, such as executing or directing Figures 3 to 11 the execution shown in FIGS. 13 through 16 or other processes of the techniques described herein. The memories 242 and 282 may store data and program codes of the base station 105 and the UE 115, respectively. The scheduler 244 may schedule data transmissions of the UE on the downlink or the uplink.
[0059] In some cases, the UE 115 and the base station 105 may operate in a shared radio spectrum band, which may include licensed or unlicensed spectrum, such as contention-based spectrum. In the unlicensed frequency portion of the shared radio spectrum band, the UE 115 or the base station 105 may conventionally perform a medium sensing process to compete for access to the spectrum. For example, the UE 115 or the base station 105 may perform a listen-before-talk or listen-before-transmit (LBT) process, such as a clear channel assessment (CCA), before communication to determine whether the shared channel is available. The CCA may include an energy detection process to determine whether there is any other active transmission. For example, the device may infer that a change in the received signal strength indicator (RSSI) of a power meter indicates that the channel is occupied. Specifically, signal power concentrated in a certain bandwidth and exceeding a predetermined background noise may indicate another wireless transmitter. In some embodiments, the CCA may include detecting a specific sequence indicating channel usage. For example, another device may transmit a specific preamble before transmitting a data sequence. In some cases, the LBT process may include a wireless node adjusting its own backoff window based on the magnitude of the energy detected on the channel or the acknowledgment or negative acknowledgment (ACK or NACK) feedback of its own transmitted packet acting as a collision proxy.
[0060] Figure 3 is a diagram showing an example related to CLI. For example, Figure 3 illustrates a first wireless communication system 300. The first wireless communication network 300 may include a first base station 302, a second base station 304, a first UE 306, and a second UE 308. The first base station 304 may be configured to provide a first cell "Cell 1", and the second base station 304 may be configured to provide a second cell "Cell 2".
[0061] If different uplink-downlink (UL-DL) time slot formats are assigned to the UE, a nearby UE called the "attacking UE" may cause CLI to another UE called the "victim UE". For example, if the UL transmission from the first UE 306 conflicts with the DL transmission to the second UE 308, the first UE 306 may cause CLI to the second UE 308. CLI may occur even if the first UE 306 and the second UE 30 are in different cells.
[0062] Figure 3A second wireless communication system 310 is also shown. The second wireless communication system 310 may include a base station 312, a first UE 314, and a second UE 316. The base station 312 may be configured to provide a cell "Cell 1". When the first UE 314 is close to the second UE 316 within the cell, if different UL-DL time slot formats are assigned to the UEs, the first UE 314 may cause CLI to the second UE 316.
[0063] Figure 3 An illustrative time slot format 320 associated with the occurrence of CLI is further shown. The time slot format 320 includes a first time slot format 322 associated with a first UE, such as the first UE 306 or the first UE 314; and a second time slot format 324 associated with a second UE, such as the second UE 308 or the second UE 316. The first time slot format 322 may be different from the second time slot format 324. For example, one or more OFDM symbols of the first time slot format 322 may be scheduled for UL transmission, while one or more OFDM symbols of the second time slot format 324 may be scheduled for DL reception. For illustration, the ninth and tenth OFDM symbols of the first time slot format 322 may be scheduled for UL transmission and the ninth and tenth OFDM symbols of the second time slot format 324 may be scheduled for DL reception. Due to the scheduling, UL symbols from the first UE may conflict with DL symbols to the second UE, resulting in CLI to the second UE. CLI may be caused by any type of UL transmission from the first UE, such as physical uplink control channel (PUCCH) transmission, physical uplink shared channel (PUSCH) transmission, random access channel (RACH) transmission, or SRS transmission.
[0064] To enable the measurement of CLI, a victim UE, such as the second UE 308 or the second UE 316, receives CLI resource configuration from the network. The victim UE can then perform CLI measurement using the configured CLI resources and may send a CLI measurement report to the network based on the CLI measurement. Since the network configures the CLI resources, the victim UE does not need to know the time-domain UL / DL configuration (time slot format) or SRS transmission configuration of the attacking UE. The network may receive the CLI measurement report and perform one or more operations, such as changing the time slot format or SRS transmission configuration of the attacking UE, to reduce the CLI measured at the victim UE.
[0065] Figure 3An example of port mapping for SRS configuration is also shown, which is typically designated as 330. The SRS configuration 330 includes a plurality of resource blocks and a plurality of physical resources / ports. In some embodiments, a 1-symbol SRS with up to 16 orthogonal ports can be supported in a first configuration with a combination level = 4 and a cyclic shift = 4 or in a second configuration with a combination level = 2 and a cyclic shift = 8. Additionally or alternatively, the number of SRS antenna ports can be 1, 2, or 4, and the number of OFDM symbols allocated for SRS per time slot can be 1, 2, 4, or a combination thereof.
[0066] As shown at 330, the port mapping is shown for a first time slot 332 (time slot n) and a second time slot 336 (time slot n+1). The first time slot 332 includes a first SRS 334 and the second time slot 336 includes a second SRS 338. Additionally, port mapping for a combination level 4, 4 cyclic shifts, and two antenna ports per time slot with time division multiplexing. Further, a plurality of ports are organized by cyclic shift (CS).
[0067] Figure 4 is a block diagram of an example wireless communication system 400 that supports performing CLI measurements on multiple CLI resources according to some aspects. In some examples, the wireless communication system 400 may implement various aspects of the wireless network 100. The wireless communication system 400 includes a UE 115 and a base station 105. Although one UE 115 and one base station 105 are shown, in some other embodiments, the wireless communication system 400 may typically include multiple UEs 115 and may include more than one base station 105.
[0068] The UE 115 may include various components (e.g., structures, hardware components) for performing one or more functions described herein. For example, these components may include one or more processors 402 (collectively referred to hereinafter as "processor 402"), one or more memory devices 404 (collectively referred to hereinafter as "memory 404"), one or more transmitters 416 (collectively referred to hereinafter as "transmitter 416"), one or more receivers 418 (collectively referred to hereinafter as "receiver 418"), and CLI resources 424. The processor 402 may be configured to execute instructions stored in the memory 404 to perform the operations described herein. In some embodiments, the processor 402 includes or corresponds to one or more of the receive processor 258, the transmit processor 264, and the controller 280, and the memory 404 includes or corresponds to the memory 282.
[0069] In some embodiments, the memory 404 is configured to store CLI measurements 406, accumulated values 408, average values 410, maximum values 412, patterns 414, or combinations thereof. As further described herein, the UE 115 may generate CLI measurement values 406 by performing CLI measurements on CLI resources 424. The accumulated value 408 may be the accumulation or sum of one or more of the CLI measurements in the CLI measurements 406. The average value 410 may be the arithmetic or geometric mean of one or more of the CLI measurements in the CLI measurements 406. The maximum value 412 may be the maximum value of one or more of the CLI measurements in the CLI measurements 406. The pattern 414 may include a pattern or scheme for switching between two or more different CLI resources, such as two or more different SRS resources.
[0070] The transmitter 416 is configured to send reference signals, control information, and data to one or more other devices, and the receiver 418 is configured to receive reference signals, synchronization signals, control information, and data from one or more other devices. For example, the transmitter 416 may send signaling, control information, and data to the base station 105, and the receiver 418 may receive signaling, control information, and data from the base station 105. In some embodiments, the transmitter 416 and the receiver 418 may be integrated in one or more transceivers. Additionally or alternatively, the transmitter 416 or the receiver 418 may include or correspond to one or more components of the UE 115 as described. In some embodiments, the receiver 418 includes one or more receive (RX) antennas, one or more RX antenna ports 422, or a combination thereof. Antenna ports are defined such that the channel of a symbol transmitted on a transmit antenna port can be inferred from the channel of another symbol transmitted on the same antenna port. In some embodiments, one or more antenna ports may be physical or logical. Figure 2 The CLI resource 424 may include one or more SRS resources, such as one or more SRS ports. Each CLI resource 424 may be configured for CLI measurement.
[0071]
[0072] Base station 105 may include various components (e.g., structures, hardware components) for performing one or more functions described herein. For example, these components may include one or more processors 452 (collectively referred to hereinafter as "processor 452"), one or more memory devices 454 (collectively referred to hereinafter as "memory 454"), one or more transmitters 456 (collectively referred to hereinafter as "transmitter 456"), and one or more receivers 458 (collectively referred to hereinafter as "receiver 458"). Processor 452 may be configured to execute instructions stored in memory 454 to perform the operations described herein. In some embodiments, processor 452 includes or corresponds to one or more of receiving processor 238, transmitting processor 220, and controller 240, and memory 454 includes or corresponds to memory 242.
[0073] Memory 454 may include one or more SRS resource configurations 460 (collectively referred to hereinafter as "SRS resource configurations 460"), one or more CLI resource configurations 462 (collectively referred to hereinafter as "CLI resource configurations 462"), and one or more styles 464 (collectively referred to hereinafter as "styles 464"). SRS resource configuration 460 may include configurations for a UE, such as UE 115 or another UE, to transmit one or more SRSs. CLI resource configuration 462 may include configurations of CLI resources, such as CLI resource 424. As an illustrative, non-limiting example, CLI resource configuration 462 may indicate multiple SRS ports for UE 115 to perform CLI measurements. Style 464 may include a style or scheme for switching between two or more different CLI resources, such as two or more different SRS resources. For example, style 464 may include or correspond to style 414.
[0074] Transmitter 456 is configured to send reference signals, synchronization signals, control information, and data to one or more other devices, and receiver 458 is configured to receive reference signals, control information, and data from one or more other devices. For example, transmitter 456 may send signaling, control information, and data to UE 115, and receiver 458 may receive signaling, control information, and data from UE 115. In some implementations, transmitter 456 and receiver 458 may be integrated in one or more transceivers. Additionally or alternatively, transmitter 456 or receiver 458 may include or correspond to one or more of the components of base station 105 described Figure 2 above.
[0075] In some embodiments, the wireless communication system 400 implements a 5G New Radio (NR) network. For example, the wireless communication system 400 may include multiple 5G-capable UEs 115 and multiple 5G-capable base stations 105, such as UEs and base stations configured to operate according to 5G NR network protocols, such as those defined by 3GPP.
[0076] During operation of the wireless communication system 400, the base station 105 may communicate with the UE 115 to configure one or more resources of the UE 115. In some embodiments, the base station 105 may also select an SRS resource configuration 460 for another UE. The SRS resource configuration 460 may include or correspond to an SRS schedule for other UEs to perform one or more SRS transmissions. The base station 105 may send a message to other UEs, the message including or indicating the SRS resource configuration 460, such as the SRS schedule.
[0077] The base station 105 may select a CLI resource configuration 462 for configuring the UE 115 for SRS measurement. In some embodiments, the base station 105 may select the CLI resource configuration 462 based on the SRS resource configuration 460. Additionally or alternatively, the base station 105 may select the CLI resource configuration 462 based on an indication of receiving a CLI from the UE 115 or a previous CLI measurement report and based on information generated or received by the base station 105, such as historical interference information or historical CLI measurement reports received from the UE 115, location data associated with other UEs served by the base station 105, time slot formats assigned to the UE 115 and other UEs, other information, or a combination thereof. The base station 105 sends a message 470 to the UE 115, such as a configuration message. The message may include or indicate the CLI resource configuration 462.
[0078] In some embodiments, the base station 105 may select a pattern 464 to use with the CLI resource configuration 462. The base station 105 may generate an indicator 474 corresponding to the pattern 464. The base station 105 may send the indicator 474 to the UE 115. For example, the base station 105 may optionally (as indicated by the dashed box) include the indicator 474 in the message 472. In some embodiments, the indicator 474 may be included in the CLI resource configuration 462. As another example, the indicator 474 may be sent to the UE 115 in another message different from the message 470.
[0079] The UE 115 may receive the message 470 and configure the CLI resource 424 based on the CLI resource configuration 462. For example, the UE 115 may configure ports 426, such as a first port 430 and a second port 432. By way of illustration, the UE 115 may configure multiple SRS ports (e.g., 426).
[0080] UE 115 may perform one or more CLI measurements on each CLI resource 424. By way of illustration, UE 115 may perform one or more CLI measurements on a first port 430 and a second port 432. UE 115 may determine CLI measurement 406 based on the CLI measurements.
[0081] In some embodiments, UE 115 may determine a pattern 414. For example, UE 115 may receive an indicator 474 and identify the pattern based on the indicator 474. Alternatively, UE 115 may select pattern 414 independent of an indication or instruction received from base station 105. In some embodiments, pattern 414 may be specified by a standard. UE 115 may perform one or more CLI measurements on each CLI resource 424 based on pattern 414.
[0082] Based on one or more CLI measurements 406, UE 115 may generate and transmit a CLI measurement report 480. The CLI measurement report 480 may include CLI measurement values 406, an accumulated value 408, an average value 410, a maximum value 412, or a combination thereof. In some embodiments, the CLI measurement report 480 may optionally (as shown by the dashed box) include one or more indicators 482. The one or more indicators 482 may indicate which CLI measurement values 406 correspond to which port 426 or combination of ports 426. In some embodiments, UE 115 may generate the CLI measurement report 480 based on measurements received via multiple RX antennas, such as RX antenna ports 422.
[0083] In some embodiments, base station 105 may optionally (as shown by the dashed box) send a message 476 to UE 115, such as a control message. The message 476 may include or correspond to a radio resource control (RRC), a media access control (MAC) control element (CE), or downlink control information (DCI). The message 476 may include an indicator 478. The indicator 478 may correspond to a precoder or beam for combining measurements from multiple RX antennas (such as RX antenna ports 422). In some such embodiments, UE 115 may generate the CLI measurement report 480 based on the precoder or beam.
[0084] In some embodiments, UE 115 may perform CLI measurements on multiple CLI resources, such as multiple ports, based on time-division multiplexing (TDM), which may enable the UE to process multiple CLI resources. In such embodiments, and as referred to herein Figure 5As described above, each port can be a single port, such that the CLI resource is equivalent to the resource port. Thus, a reference to combining multiple resources can be understood as combining ports. For example, UE 115 can be configured to switch CLI resources based on a CLI resource configuration. By way of illustration, UE 115 can be configured to switch CLI resources for different time slots, switch CLI resources for different symbols, or a combination thereof. In some embodiments, multiple CLI resources can be assigned to different time slots. For example, multiple CLI resources in a time slot, such as multiple ports, can be symbol-based or CS-based. In embodiments where multiple CLI resources are switched in a symbol, the multiple CLI resources can be orthogonal at the symbol level.
[0085] Reference Figure 5 , a diagram is shown illustrating an example of CLI measurements performed on multiple CLI resources according to some aspects. Examples of TDM methods that support multiple CLI resource measurements, such as multi-port measurements, are shown at 500, 510, 520, 530, 540, 550. Examples of using CLI resources for different time slots are shown at 500, 510, 520 and examples of using CLI resources for different symbols are shown at 530, 540, 550.
[0086] At example 500, the CLI resource 424 includes four ports - a first port 0, a second port 1, a third port 2, and a fourth port 3. These ports are used for different time slots. By way of illustration, the first port 0 is used for CLI measurements during time slot n, the second port 1 is used for CLI measurements during time slot n+1, the third port 2 is used for CLI measurements during time slot n+2, and the fourth port 3 is used for CLI measurements during time slot n+3.
[0087] At example 510, the CLI resource 424 includes four ports - a first port 0, a second port 1, a third port 2, and a fourth port 3. Two or more ports are used for different time slots. By way of illustration, the first port 0 and the second port 1 are used for CLI measurements during time slots n and n+2, and the third port 2 and the fourth port 3 are used for CLI measurements during time slots n+1 and n+3.
[0088] At example 520, the CLI resource 424 includes two ports - a first port 0 and a second port 1. These ports are used for different time slots. By way of illustration, the first port 0 is used for CLI measurements during time slot n, the second port 1 is used for CLI measurements during time slot n+1, the first port 0 is used for CLI measurements during time slot n+2, and the second port 1 is used for CLI measurements during time slot n+3.
[0089] At example 530, the CLI resource 424 includes four ports - a first port 0, a second port 1, a third port 2, and a fourth port 3. These ports are used for different symbols within time slot n. For illustration, the first port 0 is used for CLI measurements during the first symbol, the second port 1 is used for CLI measurements during the second symbol, the third port 2 is used for CLI measurements during the third symbol, and the fourth port 3 is used for CLI measurements during the fourth symbol.
[0090] At example 540, the CLI resource 424 includes two ports - a first port 0 and a second port 1. These ports are used for different symbols within time slot n. For illustration, the first port 0 is used for CLI measurements during the first and second symbols, and the second port 1 is used for CLI measurements during the third and fourth symbols.
[0091] At example 550, the CLI resource 424 includes two ports - a first port 0 and a second port 1. These ports are used for different symbols within time slot n. For illustration, the first port 0 is used for CLI measurements during the first symbol, and the second port 1 is used for CLI measurements during the second symbol.
[0092] Referring again to Figure 4 , in some embodiments, the base station 105 may configure the CLI resource 424, such as multiple ports 426, of the UE 115 for CLI measurements. For example, the CLI resource 424 (or the multiple ports 426) may be configured to have the same time domain configuration across multiple ports. In such embodiments, and as referred to herein with reference to Figure 6As described, the CLI resource includes multiple ports, and for the CLI resource, two or more of the multiple ports of the CLI resource can be combined. Thus, if the ports are combined, the ports of the CLI resource are combined, rather than the ports of different CLI resources. The UE 115 can use patterns 414, 464 to measure a subset of the CLI resource 424 (or a subset of the multiple ports 426). For example, the base station 105 can configure patterns 414, 464 for the UE 115 to switch the CLI resource or ports. The patterns 414, 464 indicated by the base station 105 can include or correspond to the patterns (or schemes) described in reference port switching examples 500, 510, 520, 530, 540, 550. In some embodiments, the base station 105 can configure one CLI resource (e.g., one port) per time slot, and the UE 115 can perform only one CLI measurement per time slot and switch the CLI resource per time slot. As another example, the UE 115 can follow predefined patterns (e.g., 414, 464) defined in the standard. For example, the standard can indicate the number of CLI resources per time slot, such as two or more CLI resources (or two or more ports per time slot). In some embodiments, the patterns defined by the standard can correspond to the transmission patterns defined by the standard, such as the SRS transmission pattern. As another example, the UE 115 can determine which pattern to implement to switch the CLI resource or ports. For illustration, the UE 115 can have one or more constraints on CLI resource switching, such as one or more constraints on antenna or port switching. Based on one or more constraints, the UE 115 can be restricted as to which CLI resources can be switched. For illustration, the UE 115 may be able to switch ports only in two time slots or after using the CLI resource for two time slots. Thus, the UE 115 switches the CLI resource according to the constraints.
[0093] Reference Figure 6 , a figure is shown illustrating an example of a CLI measurement pattern according to some aspects. For example, the time slot configuration and multiple configured CLI resources (e.g., 424), such as multiple configured ports, are shown at example 600. For each SRS of each time slot (e.g., time slots n–n+3), the UE 115 can be configured to use one or more of a first port 0, a second port 1, a third port 2, or a fourth port 3. In some embodiments, the pattern can include or correspond to the use of the CLI resource described in reference Figure 5 examples 500, 510, 520, 530, 540, 550 and can be a time slot pattern, a symbol pattern, or a combination thereof.
[0094] The first example switching pattern is shown at 602. The first example switching pattern 602 may include or correspond to a pattern determined by the base station 105. In the first example switching pattern 602, the UE 115 is configured to switch the CLI port every time slot. For illustration, the UE 115 is configured to measure the first port 0 during time slot n, the second port 1 during time slot n+1, the third port 2 during time slot n+2, and the fourth port 3 during time slot n+3.
[0095] The second example switching pattern is shown at 604. The second example switching pattern 604 may include or correspond to a pattern defined based on a standard. In the second example switching pattern 604, the UE 115 is configured to use two CLI ports every time slot. For illustration, the UE 115 is configured to measure the first port 0 and the second port 1 during each of time slot n and time slot n+2, and to measure the third port 2 and the fourth port 3 during each of time slot n+1 and time slot n+3.
[0096] The third example switching pattern is shown at 606. The third example switching pattern 606 may include or correspond to a switching pattern determined by the UE 115, for example, based on one or more operation or switching constraints. In the third example switching pattern 606, the UE 115 is configured to switch the CLI port for two time slots. For illustration, the UE 115 is configured to measure the first port 0 for time slot n and time slot n+1, and to measure the second port 1 for time slot n+2 and time slot n+3.
[0097] Referring again to Figure 4 , in some embodiments, the UE 115 may measure multiple CLI resource ports in the same time slot or the same symbol. In such embodiments, and as described herein with reference to Figure 7 , the CLI resource includes multiple ports, and for a CLI resource, two or more of the multiple ports of the CLI resource may be combined. Thus, if the ports are combined, the ports of the CLI resource are combined, rather than the ports of different CLI resources. For example, the UE 115 may measure and report two CLI resource ports in the same symbol and report each CLI resource separately (e.g., respectively). As another example, the UE 115 may measure two or more CLI resource ports in a symbol and combine the measurements of the two or more CLI resource ports. For illustration, the UE 115 may average the measurements from two or more CLI resource ports, or may determine the maximum value among the measurements from two or more CLI resource ports.
[0098] Referring to Figure 7, showing a diagram illustrating an example 700 of CLI measurements performed on multiple CLI resources according to some aspects. In example 700, the UE 115 is configured to use two CLI resource ports per time slot (e.g., per symbol).
[0099] In a first implementation of this example, the UE 115 is configured to measure a first port 0 and a second port 1 during each of time slots n and n + 2, and to measure a third port 2 and a fourth port 3 during each of time slots n + 1 and n + 3. In some implementations, the UE 115 may measure and report the measurements of each port separately. For example, the UE 115 may measure and report the CLI measurement values for each of the first port 0 and the second port 1 for time slot n separately, measure and report the CLI measurement values for each of the third port 2 and the fourth port 3 for time slot n + 1 separately, measure and report the CLI measurement values for each of the first port 0 and the second port 1 for time slot n + 2 separately, and measure and report the CLI measurement values for each of the third port 2 and the fourth port 3 for time slot n + 3 separately.
[0100] In a second implementation of example 700, the UE is configured to combine the measurements of two or more ports and report a combined CLI value. For example, the UE 115 may report the average of two or more ports. By way of illustration, the UE 115 may average the measurements of the first port 0 and the second port 1 for time slot n and report the average CLI value for time slot n, average the measurements of the third port 2 and the fourth port 3 for time slot n + 1 and report the average CLI value for time slot n + 1, average the measurements of the first port 0 and the second port 1 for time slot n + 2 and report the average CLI value for time slot n + 2, and average the measurements of the third port 2 and the fourth port 3 for time slot n + 3 and report the average CLI value for time slot n + 3. As another example, the UE 115 may report the maximum value among two or more ports. By way of illustration, the UE 115 may determine the maximum value among the measurements of the first port 0 and the second port 1 for time slot n and report the maximum CLI value for time slot n, determine the maximum value among the measurements of the third port 2 and the fourth port 3 for time slot n + 1 and report the maximum CLI value for time slot n + 1, determine the maximum value among the measurements of the first port 0 and the second port 1 for time slot n + 2 and report the maximum CLI value for time slot n + 2, and determine the maximum value among the measurements of the third port 2 and the fourth port 3 for time slot n + 3 and report the maximum CLI value for time slot n + 3. For example, the first port 0 may have the maximum value in time slot n, and the second port 1 may have the maximum value in time slot n + 2.
[0101] Refer back to Figure 4, in some embodiments, UE 115 includes multiple RX antennas, such as multiple RX antenna ports 422. UE 115 may be configured to combine measurements from multiple RX antennas. For illustration, UE 115 may be configured to combine measurements from multiple RX antenna ports 422. For example, to combine measurements, UE 115 may be configured to average the measurements across multiple RX antennas. As another example, to combine measurements, UE 115 may be configured to determine the maximum measurement across multiple RX antennas. As an additional example, to combine measurements, UE 115 may be configured to use a specific precoder or beam indicated by base station 105. For illustration, base station 105 may send an indicator 478 indicating a precoder or beam to UE 115. In some embodiments, indicator 478 may be included in a control message, such as RRC, MAC-CE, or DCI. In some other embodiments, indicator 478 may be included with the configuration / activation of the CLI-SRS resource of UE 115 in a message such as message 470 or in another message.
[0102] In some embodiments, in addition to combining measurements of RX antennas, measurements of CLI resources 424, such as port 426, may also be combined. For example, measurements of multiple CLI resources 424 may be performed before combining measurements of multiple RX antennas. As another example, measurements of multiple RX antennas may be combined before combining measurements from multiple CLI resources 424.
[0103] As described in reference to Figure 4 the present disclosure provides techniques for enabling UE 115 to perform CLI measurements on multiple CLI resources 424. Performing CLI measurements on multiple CLI resources 424 enables UE 115 to perform CLI measurements to measure the CLI of multiple SRSs from an attacking UE. For example, the present disclosure provides techniques for supporting multiple CLI measurements performed on multiple CLI resources, such as on multiple SRS resources. Performing multiple CLI measurements on multiple CLI resources may enable the UE to better detect the CLI from an attacking UE. In some other embodiments, the CLI measurement report 480 only includes the accumulated value 408, the average value 410, the maximum value 412, or a combination thereof, which reduces the size of the CLI measurement report compared to a conventional CLI measurement report. Reducing the size of the CLI measurement report 480 may reduce overhead and increase the available system bandwidth of the wireless communication system 400.
[0104] Figure 8 is a flow chart illustrating an example process 800 for supporting CLI measurements performed on multiple CLI resources according to some aspects. The operations of process 800 may be performed by a UE, such as the one referenced above Figure 1 、 2the UE 115 described in or 4 or Figure 3 UEs 306, 308, 314, 316. For example, the exemplary operations (also referred to as “boxes”) of process 800 may enable the UE to perform CLI measurements on multiple CLI resources, such as multiple SRS ports.
[0105] Figure 9 is a block diagram of an exemplary UE 900 that supports performing CLI measurements on multiple CLI resources according to some aspects. The UE 900 may be configured to perform operations including the reference of performing CLI measurements on multiple CLI resources Figure 8 to the boxes of process 800 described. In some embodiments, the UE 900 includes the reference Figure 1 , 2 the UE 115 described in or 4 or Figure 3 the structures, hardware, and components shown and described for UEs 306, 308, 314, 316. For example, the UE 900 includes a controller 280 that operates to execute logic or computer instructions stored in a memory 282 and controls the components of the UE 900 that provide the features and functions of the UE 900. Under the control of the controller 280, the UE 900 transmits and receives signals via radios 901a-r and antennas 252a-r. The radios 901a-r include various components and hardware, such as Figure 2 illustrated for the UE 115 in, including modulators and demodulators 254a-r, a MIMO detector 256, a receive processor 258, a transmit processor 264, and a TX MIMO processor 266.
[0106] As shown, the memory 282 may include receive logic 902, a CLI measurer 903, and transmit logic 904. The receive logic 902 may be configured to receive messages from a base station, such as a message including CLI resource configuration. The CLI measurer 903 may be configured to perform one or more CLI measurements based on the configured CLI resources. The transmit logic 904 may be configured to initiate the transmission of a message to the base station, such as a CLI measurement report. The UE 900 may receive signals from or send signals to one or more network entities, such as Figure 1 , 2 the base station 105 described in or 4, Figure 3 the base stations 302, 204, 312 described in or as Figure 11 illustrated for the base station.
[0107] Return Figure 8 , Figure 8FIG. 0 is a flow diagram illustrating a process 800 that supports performing CLI measurements on multiple CLI resources in accordance with some aspects. At block 802, UE 900 performs one or more CLI measurements on each of multiple ports to determine multiple measurement values for the multiple ports. For illustration, under the control of controller 280, UE 900 may execute CLI measurer 903 stored in memory 282. The execution environment of CLI measurer 903 provides the functionality to perform corresponding CLI measurements on each of the multiple CLI resources.
[0108] In some embodiments, the multiple ports may include or correspond to CLI resources 424 or ports 426. For example, the multiple ports include multiple sounding reference signal (SRS) resources. The multiple ports may include the same or fewer number of ports of sounding reference signals from an attacking UE. Additionally or alternatively, the multiple ports may be configured to be time division multiplexed across multiple time slots, time division multiplexed across multiple symbols, or a combination thereof. In some embodiments, the multiple ports may have the same time domain configuration as the sounding reference signal (SRS) transmission from an attacking UE. Each of the multiple ports may also be configured to be assigned to a different transmission time slot. In some embodiments, a single port or multiple ports among the multiple ports are assigned to one time slot. Additionally or alternatively, the multiple ports assigned to one time slot have a symbol-based assignment or a cyclic shift (CS)-based assignment.
[0109] At block 804, UE 1200 transmits a CLI measurement report based on the multiple measurement values. In some embodiments, the CLI measurement report is transmitted to a base station. For illustration, under the control of controller 280, UE 900 may execute transmission logic 904 stored in memory 282. The execution environment of transmission logic 904 provides the functionality to transmit the CLI measurement report.
[0110] In some embodiments, the UE receives a message from the base station that includes a CLI resource configuration indicating the multiple ports. The base station may include or correspond to Figure 1 、 2 base station 105 of 4, Figure 3 base stations 302, 304, 312 of Figure 11 or base station 1100 of
[0111] In some embodiments, performing one or more CLI measurements on each of a plurality of ports includes the UE 900 performing a first set of one or more CLI measurements using a first set of one or more ports of the plurality of ports during a first time slot. Additionally, performing one or more CLI measurements on each of the plurality of ports may further include the UE performing a second set of one or more CLI measurements using a second set of one or more ports of the plurality of ports during a second time slot. The first set of one or more ports may be different from the second set of one or more ports.
[0112] In some other embodiments, the UE 900 may perform a third set of one or more CLI measurements using the first set of one or more ports during a third time slot, or perform a fourth set of one or more CLI measurements using the second set of one or more ports during a fourth time slot. Alternatively, the UE 900 may perform a third set of one or more CLI measurements using a third set of one or more ports of the plurality of ports during a third time slot, or perform a fourth set of one or more CLI measurements using a fourth set of one or more ports of the plurality of ports during a fourth time slot. In some embodiments, each of the first set of one or more ports and the second set of one or more ports includes a single port.
[0113] In some embodiments, to perform one or more CLI measurements on each of the plurality of ports, the UE 900 performs a first CLI measurement using a first port of the plurality of ports during a first symbol of a plurality of symbols. Additionally or alternatively, to perform one or more CLI measurements on each of the plurality of ports, the UE 900 performs a second CLI measurement using a second port of the plurality of ports during a second symbol of the plurality of symbols.
[0114] In some embodiments, the plurality of symbols are included in a single time slot, the first symbol and the second symbol are consecutive symbols, and the first port and the second port are different ports or a combination thereof. By way of illustration, the plurality of ports may be orthogonally switched at the symbol level to perform one or more CLI measurements.
[0115] In some embodiments, to perform one or more CLI measurements on each of the plurality of ports, the UE 900 selects one or more ports for CLI measurement according to a pattern. The pattern may include a per-time-slot port switching pattern, a per-symbol port switching pattern, or a combination thereof. For example, the pattern may indicate using one port per time slot, indicate switching ports per time slot, indicate switching ports per symbol, or a combination thereof. In some embodiments, the message includes an indication of the pattern. Additionally or alternatively, the pattern is defined by a standard or determined by the UE 900.
[0116] In some embodiments, to perform multiple CLI measurements, UE 900 performs a first set of CLI measurements using a first port among a plurality of ports and a second port among the plurality of ports during the same symbol. The first port and the second port may respectively include or correspond to the first port 430 and the second port 432. UE 900 may also generate a CLI measurement report to indicate the first CLI measurement from the first port and the second CLI measurement from the second port.
[0117] In some embodiments, UE 900 may combine the first CLI measurement from the first port and the second CLI measurement from the second port to generate a combined CLI measurement, and generate a CLI measurement report to indicate the combined measurement. To combine the first CLI measurement from the first port and the second CLI measurement from the second port, UE 900 may average the first CLI measurement and the second CLI measurement, aggregate the first CLI measurement and the second CLI measurement, or select the maximum value of the first CLI measurement and the second CLI measurement as the combined measurement.
[0118] In some embodiments, multiple CLI measurements may be performed via a plurality of RX antenna ports. UE 900 may average the measurements received via a set of RX antenna ports among the plurality of RX antenna ports, determine the maximum measurement among a set of RX measurements received via a set of RX antenna ports among the plurality of RX antenna ports, or use a precoder or beam to combine a set of RX measurements received via a set of RX antenna ports among the plurality of RX antenna ports. In some embodiments, UE 900 may receive an indicator corresponding to the precoder or beam from the base station. For example, UE 900 may receive an RRC, MAC-CE, or DCI including the indicator. Additionally or alternatively, UE 900 may receive a message from the base station including a CLI resource configuration indicating a plurality of ports, and the message may include the indicator.
[0119] In some embodiments, UE 900 may combine a set of CLI measurements from a set of ports among a plurality of ports, and combine a set of RX measurements from a set of RX antenna ports among the plurality of RX antenna ports. For example, the set of CLI measurements may be combined before the set of RX measurements is combined. As another example, the set of RX measurements may be combined before the set of CLI measurements is combined.
[0120] Figure 10 is a flow chart illustrating an example process 1000 for supporting the configuration of CLI resources to enable CLI measurements on multiple CLI resources according to some aspects. The operations of process 1000 may be performed by a base station, such as the base station 105 described above with reference to Figure 1 、 2 or 4 or Figure 3Base stations 302, 304, 312. For example, the exemplary operations of process 1000 may enable a base station to configure CLI resources for a UE.
[0121] Figure 11 is a block diagram of an exemplary base station 1100 that supports configuring CLI resources according to some aspects. The base station 1100 may be configured to perform operations including the blocks of process 1000 described with reference Figure 10 In some embodiments, the base station 1100 includes those structures, hardware, and components illustrated and described with reference to Figure 1 , 2 base station 105 of 4 or Figure 3 the base stations 302, 304, 312 shown and described. For example, the base station 1100 may include a controller 240 that operates to execute logic or computer instructions stored in a memory 242 and controls the components of the base station 1100 that provide the features and functions of the base station 1100. Under the control of the controller 240, the base station 1100 transmits and receives signals via radio stations 1101a-t and antennas 234a-t. The radio stations 1101a-t include various components and hardware, such as Figure 2 illustrated for base station 105 in
[0122] including modulators and demodulators 232a-t, a transmit processor 220, a TX MIMO processor 230, a MIMO detector 236, and a receive processor 238. Figure 1 , 2 UE 115 of 4, Figure 3 UEs 306, 308, 314, 316 of Figure 9 UE 900.
[0123] Return Figure 10 , Figure 10FIG. 1000 is a flowchart of a process 1000 for configuring CLI resources according to some aspects to enable CLI measurements on multiple CLI resources. In block 1002, base station 1100 sends a message to UE that includes a CLI resource configuration indicating multiple ports for multiple CLI measurements. The message and the CLI resource configuration may respectively include or correspond to message 470 and CLI resource configuration 462. For illustration, under the control of controller 240, base station 1100 may execute CLI configuration logic 1102 and transmission logic 1103 stored in memory 242. The execution environment of CLI configuration logic 1102 provides a function of generating a CLI resource configuration indicating multiple ports configured for UE. The execution environment of transmission logic 1103 provides a function of sending a message including the CLI resource configuration to UE.
[0124] In block 1004, base station 1100 receives a CLI measurement report from UE based on multiple CLI measurements performed by UE via multiple ports. The CLI measurement report may include or correspond to CLI measurement report. For illustration, under the control of controller 240, base station 1100 may execute reception logic 1104 stored in memory 242. The execution environment of reception logic 1104 provides a function of receiving a CLI measurement report based on multiple CLI measurements performed by UE.
[0125] In some implementations, the base station may generate a message. Additionally or alternatively, the multiple ports include multiple SRS resources. The multiple ports may include the same or fewer number of ports as the SRS of the attacking UE. The multiple ports may be configured for time division multiplexing across multiple time slots, time division multiplexing across multiple symbols, or a combination thereof. In some embodiments, the multiple ports have the same time domain configuration as the SRS transmission from the attacking UE.
[0126] In some embodiments, base station 1100 may determine the pattern in which UE uses the multiple ports. For example, the pattern may include or correspond to pattern 414, 464, or indicator 474. The pattern may include a per-time-slot port switching pattern, a per-symbol port switching pattern, or a combination thereof. For example, the pattern may indicate using one port per time slot, indicating port switching per time slot, indicating port switching per symbol, or a combination thereof. In some embodiments, the message includes an indication of the pattern, which is defined by a standard, or a combination thereof.
[0127] In some embodiments, the base station 1100 generates an indicator to indicate whether a UE is to use a precoder or beam to combine a set of RX measurements received via a set of Rx antenna ports. The indicator may include or correspond to indicator 478. Additionally or alternatively, the base station 1100 may send the indicator to the UE. For example, the base station 1100 may send an RRC, MAC-CE, or DCI including the indicator. As another example, the indicator may be included in a message, such as message 470.
[0128] Note that a reference Figure 8 and 10 one or more of the boxes (or operations) described may be combined with one or more of the boxes (or operations) described in another figure of the reference drawings. For example, Figure 8 one or more of the boxes (or operations) of Figure 10 may be combined with one or more of the boxes (or operations) of Figure 8 As another example, one or more of the boxes associated with Figure 2 or 10 may be combined with one or more of the boxes (or operations) associated with Figures 1 to 11 or 4 to 7. Additionally or alternatively, one or more of the operations described above with reference to Figures 1 to 11 may be combined with one or more of the operations described in another figure of the reference
[0129] In some aspects, techniques for enabling CLI measurements on CLI resources may include additional aspects, such as any single aspect described below or any combination of aspects or any single aspect or any combination of aspects related to one or more other processes or devices described elsewhere herein. In some aspects, performing CLI measurements on multiple CLI resources may include means configured to perform one or more cross-link interference (CLI) measurements on each of multiple ports to determine multiple measurements of the multiple CLI resources. The means may also be configured to send a CLI measurement report based on the multiple measurements. In some embodiments, the means includes a wireless device, such as a UE. In some embodiments, the means may include at least one processor and a memory coupled to the processor. The processor may be configured to perform the operations described herein with respect to the wireless device. In some other embodiments, the means may include a non-transitory computer-readable medium having program code recorded thereon, and the program code may be executed by a computer to cause the computer to perform the operations described herein with reference to the wireless device. In some embodiments, the means may include one or more components configured to perform the operations described herein.
[0130] In a first aspect, a plurality of ports includes a plurality of SRS resources. In some embodiments of the first aspect, each port (among the plurality of ports) corresponds to a different resource or the plurality of ports corresponds to the same resource.
[0131] In a second aspect, alone or in combination with the first aspect, the apparatus is further configured to receive, from a base station, a message including a CLI resource configuration indicating the plurality of ports.
[0132] In a third aspect, alone or in combination with the second aspect, a CLI measurement report is sent to the base station.
[0133] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the plurality of ports includes the same or a smaller number of ports of sounding reference signals from an attacking UE.
[0134] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the plurality of ports is configured for time division multiplexing across a plurality of time slots, time division multiplexing across a plurality of symbols, or a combination thereof.
[0135] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, for performing one or more CLI measurements on each port among the plurality of ports, the apparatus is further configured to perform a first set of one or more CLI measurements using a first set of one or more ports among the plurality of ports during a first time slot.
[0136] In a seventh aspect, in combination with the sixth aspect, for performing one or more CLI measurements on each port among the plurality of ports, the apparatus is further configured to perform a second set of one or more CLI measurements using a second set of one or more ports among the plurality of ports during a second time slot.
[0137] In an eighth aspect, in combination with the seventh aspect, the first set of one or more ports is different from the second set of one or more ports.
[0138] In a ninth aspect, alone or in combination with one or more of the sixth to eighth aspects, the apparatus is further configured to perform a third set of one or more CLI measurements using the first set of one or more ports during a third time slot.
[0139] In a tenth aspect, in combination with the ninth aspect, the apparatus is further configured to perform a fourth set of one or more CLI measurements using the second set of one or more ports during a fourth time slot.
[0140] In an eleventh aspect, alone or in combination with one or more of the ninth to tenth aspects, the apparatus is further configured to perform a third set of one or more CLI measurements using a third set of one or more ports among the plurality of ports during the third time slot.
[0141] In a twelfth aspect, in combination with the eleventh aspect, the apparatus is further configured to perform a fourth set of one or more CLI measurements using a fourth set of one or more ports among the plurality of ports during a fourth time slot.
[0142] In a thirteenth aspect, either alone or in combination with one or more of the sixth to twelfth aspects, each of the first set of one or more ports and the second set of one or more ports includes a single port.
[0143] In a fourteenth aspect, either alone or in combination with one or more of the sixth to twelfth aspects, the first set of one or more ports is time-division multiplexed within a first time slot, and the time-division multiplexing is symbol-based or CS-based.
[0144] In a fifteenth aspect, either alone or in combination with one or more of the first to fifth aspects, in order to perform one or more CLI measurements on each of the plurality of ports, the apparatus is further configured to perform a first CLI measurement using a first port among the plurality of ports during a first symbol among the plurality of symbols.
[0145] In a sixteenth aspect, in combination with the fifteenth aspect, in order to perform one or more CLI measurements on each of the plurality of ports, the apparatus is further configured to perform a second CLI measurement using a second port among the plurality of ports during a second symbol among the plurality of symbols.
[0146] In a seventeenth aspect, in combination with the sixteenth aspect, the plurality of symbols are included in a single time slot, the first symbol and the second symbol are consecutive symbols, the first port and the second port are different ports, or a combination thereof.
[0147] In an eighteenth aspect, either alone or in combination with one or more of the first to seventeenth aspects, the plurality of ports are orthogonally switched at the symbol level to perform one or more CLI measurements.
[0148] In a nineteenth aspect, either alone or in combination with one or more of the first to eighteenth aspects, the plurality of ports have the same time domain configuration as the SRS transmission from the attacking UE.
[0149] In a twentieth aspect, either alone or in combination with one or more of the first to nineteenth aspects, in order to perform one or more CLI measurements on each of the plurality of ports, the apparatus is further configured to select one or more ports for CLI measurement according to a pattern.
[0150] In a twenty-first aspect, in combination with the twentieth aspect, the pattern includes a per-time-slot port switching pattern, a per-symbol port switching pattern, or a combination thereof, and optionally, the plurality of ports correspond to the same resources.
[0151] In a twenty-second aspect, alone or in combination with one or more of the twentieth to twenty-first aspects, the pattern indicates using one port per time slot, indicates switching ports per time slot, indicates switching ports per symbol, or a combination thereof.
[0152] In a twenty-third aspect, alone or in combination with one or more of the twentieth to twenty-second aspects, the message includes an indication of the pattern.
[0153] In a twenty-fourth aspect, alone or in combination with one or more of the twentieth to twenty-second aspects, the pattern is defined by a standard.
[0154] In a twenty-fifth aspect, alone or in combination with one or more of the twentieth to twenty-fourth aspects, the apparatus is further configured to have the UE determine the pattern.
[0155] In a twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, to perform multiple CLI measurements, the apparatus is further configured to perform a first set of CLI measurements using a first port among multiple ports and a second port among multiple ports during the same symbol, and optionally, the multiple ports correspond to the same resource.
[0156] In a twenty-seventh aspect, in combination with the twenty-sixth aspect, the apparatus is further configured to generate a CLI measurement report to indicate a first CLI measurement from the first port and a second CLI measurement from the second port.
[0157] In a twenty-eighth aspect, in combination with the twenty-sixth aspect, the apparatus is further configured to combine a first CLI measurement from the first port and a second CLI measurement from the second port to generate a combined CLI measurement, and generate a CLI measurement report to indicate the combined measurement.
[0158] In a twenty-ninth aspect, in combination with the twenty-eighth aspect, to combine a first CLI measurement from the first port and a second CLI measurement from the second port, the apparatus is further configured to average the first CLI measurement and the second CLI measurement.
[0159] In a thirtieth aspect, in combination with the twenty-eighth aspect, to combine a first CLI measurement from the first port and a second CLI measurement from the second port, the apparatus is further configured to select the maximum value of the first CLI measurement and the second CLI measurement as the combined measurement.
[0160] In a thirty-first aspect, alone or in combination with one or more of the first to thirty-first aspects, multiple CLI measurements are performed via multiple receive (RX) antenna ports.
[0161] In a thirty-second aspect, in combination with the thirty-first aspect, the apparatus is further configured to average measurements received via a set of RX antenna ports among a plurality of RX antenna ports.
[0162] In a thirty-third aspect, in combination with the thirty-first aspect, the apparatus is further configured to determine a maximum measurement among a set of RX measurements received via a set of RX antenna ports among a plurality of RX antenna ports.
[0163] In a thirty-fourth aspect, in combination with the thirty-first aspect, the apparatus is further configured to receive a set of RX measurements via a set of Rx antenna ports among a plurality of RX antenna ports using a precoder or beamforming.
[0164] In a thirty-fifth aspect, in combination with the thirty-fourth aspect, the apparatus is further configured to receive an indicator corresponding to the precoder or beam from the base station.
[0165] In a thirty-sixth aspect, in combination with the thirty-fifth aspect, the apparatus is further configured to receive an RRC, MAC-CE, or DCI including the indicator.
[0166] In a thirty-seventh aspect, in combination with the thirty-fifth aspect, the apparatus is further configured to receive a message from the base station including a CLI resource configuration indicating a plurality of ports, and the message includes the indicator.
[0167] In a thirty-eighth aspect, alone or in combination with one or more of the first to thirty-seventh aspects, the apparatus is further configured to combine a set of CLI measurements from a set of ports among a plurality of ports, and combine a set of RX measurements from a set of RX antenna ports among a plurality of RX antenna ports.
[0168] In a thirty-ninth aspect, in combination with the thirty-eighth aspect, the set of CLI measurements is combined before the set of RX measurements is combined.
[0169] In a fortieth aspect, in combination with the thirty-eighth aspect, the set of RX measurements is combined before the set of CLI measurements is combined.
[0170] In some aspects, a device configured for wireless communication, such as a base station, is configured to send a message to a user equipment (UE) that includes a cross-link interference (CLI) resource configuration indicating multiple ports for multiple CLI measurements. The device is also configured to receive a CLI measurement report from the UE based on multiple CLI measurements performed by the UE via the multiple ports. In some embodiments, the device includes a wireless device, such as a base station. In some embodiments, the device may include at least one processor and a memory coupled to the processor. The processor may be configured to perform the operations described herein with respect to the wireless device. In some other embodiments, the device may include a non-transitory computer-readable medium having program code recorded thereon, and the program code may be executed by a computer to cause the computer to perform the operations described herein with reference to the wireless device. In some embodiments, the device may include one or more components configured to perform the operations described herein.
[0171] In a forty-first aspect, the multiple ports include multiple sounding reference signal (SRS) resources.
[0172] In a forty-second aspect, alone or in combination with the forty-first aspect, the device is further configured to generate a message.
[0173] In a forty-third aspect, alone or in combination with one or more of the forty-first to forty-second aspects, the multiple ports include the same or fewer ports of the probing reference signal of an attacking UE.
[0174] In a forty-fourth aspect, alone or in combination with one or more of the forty-first to forty-third aspects, the multiple ports are configured to be time-division multiplexed across multiple time slots, time-division multiplexed across multiple symbols, or a combination thereof.
[0175] In a forty-fifth aspect, alone or in combination with one or more of the forty-first to forty-fourth aspects, the multiple ports have the same time-domain configuration as the SRS transmission from an attacking UE.
[0176] In a forty-sixth aspect, alone or in combination with one or more of the forty-first to forty-fifth aspects, the device is further configured to determine the pattern in which the UE uses the multiple ports.
[0177] In a forty-seventh aspect, in combination with the forty-sixth aspect, the pattern includes a per-time-slot port-switching pattern, a per-symbol port-switching pattern, or a combination thereof.
[0178] In a forty-eighth aspect, alone or in combination with one or more of the forty-sixth to forty-seventh aspects, the pattern indicates using one port per time slot, indicates switching ports per time slot, indicates switching ports per symbol, or a combination thereof.
[0179] In a forty-ninth aspect, alone or in combination with one or more of the forty-sixth to forty-eighth aspects, the message includes an indication of a style.
[0180] In a fiftieth aspect, alone or in combination with one or more of the forty-sixth to forty-eighth aspects, the style is defined by a standard.
[0181] In a fifty-first aspect, alone or in combination with one or more of the forty-sixth to fiftieth aspects, the apparatus is further configured to generate an indicator to indicate whether the UE is to combine the use of a precoder or beam to receive a set of RX measurements via a set of Rx antenna ports, and to send the indicator to the UE.
[0182] In a fifty-second aspect, in combination with the fifty-first aspect, the apparatus is further configured to send an RRC, MAC-CE or DCI including the indicator.
[0183] In a fifty-third aspect, in combination with the fifty-first aspect, the indicator is included in a message.
[0184] Those skilled in the art will understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0185] As described herein with respect to Figures 1 to 11 the components, functional blocks and modules described include examples such as processors, electronic devices, hardware devices, electronic components, logic circuits, memories, software code, firmware code, etc. or any combination thereof. Additionally, the features discussed herein may be implemented via dedicated processor circuitry, via executable instructions, or a combination thereof.
[0186] Those skilled in the art will further understand that the various illustrative logical blocks, modules, circuits and algorithmic steps described in connection with the present disclosure may be implemented as electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability of hardware and software, the various illustrative components, blocks, modules, circuits and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in different ways for each particular application, but such implementation decisions should not be construed as causing a departure from the scope of the present disclosure. Those skilled in the art will also readily recognize that the order or combination of components, methods, or interactions described herein are merely examples, and that the components, means, or interactions of the various aspects of the present disclosure may be combined or performed in a manner different from that shown and described herein.
[0187] The various illustrative logical, logical blocks, modules, circuits, and algorithmic processes described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been generally described in terms of functionality and illustrated in the various illustrative components, blocks, modules, circuits, and processes described above. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0188] The hardware and data processing apparatus for implementing the various illustrative logical, logical blocks, modules, and circuits described in connection with the aspects disclosed herein can be a general-purpose single-chip or multi-chip processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a 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 herein. A general-purpose processor can be a microprocessor, or any conventional processor, controller, microcontroller, or state machine. In some implementations, the processor can be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. In some embodiments, specific processes and methods can be performed by circuitry specific to a given function.
[0189] In one or more aspects, the described functionality can be implemented in hardware, digital electronic circuitry, computer software, firmware, including the structures disclosed in this specification and structural equivalents thereof, or any combination thereof. Embodiments of the subject matter described in this specification can also be implemented as one or more computer programs, i.e., one or more modules of computer program instructions, encoded on a computer storage medium for execution by, or to control the operation of, a data processing apparatus.
[0190] If implemented in software, the functions can be stored or transmitted as one or more instructions or codes on a computer-readable medium. The processes of the methods or algorithms disclosed herein can be implemented as processor-executable software modules residing on a computer-readable medium. The computer-readable medium includes computer storage media and communication media, including any medium that can transfer a computer program from one place to another. The storage media can be any available medium accessible by a computer. By way of example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection can be properly termed a computer-readable medium. As used herein, disk and optical disks include compact disk (CD), laser disk, optical disk, digital versatile disk (DVD), floppy disk, and Blu-ray disk, where disks usually reproduce data magnetically, while optical disks reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media. Additionally, operations of a method or algorithm can reside as one or any combination or set of codes and instructions on a machine-readable medium and a computer-readable medium, which can be incorporated into a computer program product.
[0191] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to some other embodiments without departing from the spirit or scope of the disclosure. Thus, the claims are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the disclosure, the principles disclosed herein, and the novel features.
[0192] Additionally, those of ordinary skill in the art will readily understand that the terms "upper" and "lower" are sometimes used for convenience in describing the figures and indicate relative positions corresponding to the orientation of the figures on a properly oriented page, and may not reflect the correct orientation of any device implemented.
[0193] Certain features described in the context of separate embodiments in this specification can also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented separately in multiple embodiments or in any suitable sub-combination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, in some cases, one or more features from a claimed combination can be deleted from the combination, and the claimed combination can be directed to a sub-combination or a variation of the sub-combination.
[0194] Similarly, although operations are depicted in the figures in a particular order, this should not be construed as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed to achieve the desired result. Further, the figures may schematically depict yet another example process in the form of a flowchart. However, other operations not depicted may be incorporated into the example process illustrated schematically. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the operations illustrated. In some cases, multitasking and parallel processing may be advantageous. Additionally, the separation of various system components in the above-described embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, some other embodiments are within the scope of the following claims. In some cases, the acts recited in the claims can be performed in a different order and still achieve the desired result.
[0195] As used herein, including in the claims, the term "or" when used in a list of two or more items means that any one of the listed items can be used alone or any combination of two or more of the listed items can be used. For example, if a composition is described as containing components A, B, or C, the composition can contain only A; only B; only C; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C. Similarly, as used herein, including in the claims, "or" used in a list of items beginning with "at least one of" represents a disjunctive list, e.g., a list of "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) or any combination thereof. As will be understood by one of ordinary skill in the art, the term "substantially" is defined as largely but not necessarily wholly that which is specified (and includes that which is specified; e.g., substantially 90 degrees includes 90 degrees and substantially parallel includes parallel). In any of the disclosed embodiments, the term "substantially" can be replaced with "within [a percentage] of" that which is specified, where the percentage includes 0.1%, 1%, 5%, or 10%.
[0196] The foregoing description of the disclosure has been provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A wireless communication method performed by a user equipment (UE), the method comprising: Receiving, from a base station, a message including a cross-link interference (CLI) resource configuration indicating a plurality of ports; Performing one or more CLI measurements on each of the plurality of ports to determine a plurality of measurement values for the plurality of ports; And Sending a CLI measurement report based on the plurality of measurement values, Wherein the method further comprises: Combining a set of CLI measurements from a set of ports of the plurality of ports; and Combining a set of received RX measurements from a set of RX antenna ports of a plurality of RX antenna ports; and Wherein the set of CLI measurements is combined before the set of RX measurements is combined, or the set of RX measurements is combined before the set of CLI measurements is combined.
2. The method according to claim 1, wherein, The plurality of ports include a plurality of sounding reference signal (SRS) resources; and Wherein the CLI measurement report is sent to the base station.
3. The method according to claim 1, wherein: The plurality of ports include the same or fewer ports of the sounding reference signals from an attacking UE; and The plurality of ports are configured for time division multiplexing across a plurality of time slots, time division multiplexing across a plurality of symbols, or a combination thereof.
4. The method according to claim 1, wherein, Each of the plurality of ports is configured to be assigned to a different transmission time slot, or wherein each port corresponds to a different resource; or A single port or a plurality of ports of the plurality of ports are assigned to one time slot; and The plurality of ports assigned to the one time slot have a symbol-based assignment or a cyclic shift (CS)-based assignment.
5. The method according to claim 1, wherein: Performing the one or more CLI measurements on each of the plurality of ports includes: Performing a first CLI measurement using a first port of the plurality of ports during a first symbol of a plurality of symbols; and Performing a second CLI measurement using a second port of the plurality of ports during a second symbol of the plurality of symbols; and The plurality of symbols are included in a single time slot, the first symbol and the second symbol are consecutive symbols, and the first port and the second port are different ports or a combination thereof.
6. The method according to claim 1, wherein: The plurality of ports are orthogonally switched at the symbol level to perform the one or more CLI measurements; The plurality of ports have the same time domain configuration as the sounding reference signal (SRS) transmission from an attacking UE; Performing the one or more CLI measurements on each of the plurality of ports includes selecting one or more ports for CLI measurement according to a pattern including a per-time-slot port switching pattern, a per-symbol port switching pattern, or a combination thereof; or A combination thereof.
7. The method according to claim 1, wherein performing the plurality of CLI measurements includes performing a first set of CLI measurements using a first port of the plurality of ports and a second port of the plurality of ports during the same symbol, and wherein, The plurality of ports correspond to the same resource.
8. The method according to claim 7, further comprising: Generating the CLI measurement report to indicate a first CLI measurement from the first port and a second CLI measurement from the second port; Among them, combining the set of CLI measurements includes: combining a first CLI measurement from the first port and a second CLI measurement from the second port to generate a combined CLI measurement; wherein combining the first CLI measurement from the first port and the second CLI measurement from the second port includes: averaging the first CLI measurement and the second CLI measurement; or selecting the maximum value of the first CLI measurement and the second CLI measurement as the combined CLI measurement; and generating the CLI measurement report to indicate the combined CLI measurement.
9. The method according to claim 1, wherein The plurality of CLI measurements are performed via a plurality of receiving RX antenna ports, and combining the set of CLI measurements includes: averaging the set of RX measurements received via a set of RX antenna ports of the plurality of RX antenna ports, or determining the maximum measurement among a set of RX measurements received via a set of RX antenna ports of the plurality of RX antenna ports.
10. The method according to claim 1, wherein the plurality of CLI measurements are performed via a plurality of receiving RX antenna ports, and combining the set of RX measurements includes: using a precoder or beam combining for a set of RX measurements received via a set of Rx antenna ports of the plurality of RX antenna ports, wherein the method further includes: receiving a radio resource control RRC, media access control MAC - control element CE, or downlink control information DCI including an indicator corresponding to the precoder or the beam; or receiving a message from a base station including a CLI resource configuration indicating the plurality of ports, and wherein the message includes an indicator corresponding to the precoder or the beam.
11. A user equipment UE includes: at least one processor; and a memory coupled to the at least one processor and storing processor - readable code, which when executed by the at least one processor, is configured to: receive a message from a base station including a cross - link interference CLI resource configuration indicating a plurality of ports; perform one or more CLI measurements on each of the plurality of ports to determine a plurality of measurement values of the plurality of ports; and initiate transmission of a CLI measurement report based on the plurality of measurement values, wherein the at least one processor is further configured to: combine a set of CLI measurements from a set of ports of the plurality of ports; and combine a set of RX measurements from a set of RX antenna ports of a plurality of RX antenna ports; and wherein the set of CLI measurements is combined before the set of RX measurements is combined, or the set of RX measurements is combined before the set of CLI measurements is combined.
12. The UE according to claim 11, wherein, The plurality of ports include a plurality of sounding reference signal SRS resources; and The CLI measurement report is received by the base station.
13. The UE according to claim 11, wherein: the plurality of ports include the same or fewer ports of sounding reference signals from an attacking UE; and the plurality of ports are configured for time - division multiplexing across multiple time slots, time - division multiplexing across multiple symbols, or a combination thereof; Each of the plurality of ports is configured to be assigned to a different transmission time slot; or A single port or multiple ports among the plurality of ports are assigned to one time slot, and the multiple ports assigned to the one time slot have a symbol-based assignment or a cyclic shift CS-based assignment.
14. The UE according to claim 11, wherein: The plurality of ports include the same or fewer number of ports of the sounding reference signal from the attacking UE, and the plurality of ports are configured for time division multiplexing across multiple time slots, time division multiplexing across multiple symbols, or a combination thereof; Or To perform the one or more CLI measurements on each of the plurality of ports, the at least one processor is further configured to: Perform a first CLI measurement using a first port among the plurality of ports during a first symbol among the plurality of symbols; Perform a second CLI measurement using a second port among the plurality of ports during a second symbol among the plurality of symbols; and The plurality of symbols are included in a single time slot, the first symbol and the second symbol are consecutive symbols, and the first port and the second port are different ports or a combination thereof.
15. The UE according to claim 11, wherein: The plurality of ports are switched orthogonally at the symbol level to perform the one or more CLI measurements; The plurality of ports have the same time domain configuration as the sounding reference signal SRS transmission from the attacking UE; To perform the one or more CLI measurements on each of the plurality of ports, the at least one processor is further configured to select one or more ports for CLI measurement according to a pattern including a per time slot port switching pattern, a per symbol port switching pattern, or a combination thereof; or A combination thereof.
16. The UE according to claim 11, wherein, To perform the plurality of CLI measurements, the at least one processor is further configured to perform a first set of CLI measurements using a first port among the plurality of ports and a second port of the plurality of ports during the same symbol.
17. The UE according to claim 11, wherein The plurality of CLI measurements are performed via a plurality of receive RX antenna ports; and The at least one processor is configured to combine the set of RX measurements by: Averaging the set of RX measurements received via a set of RX antenna ports among the plurality of RX antenna ports, or Determining the maximum measurement among a set of RX measurements received via a set of RX antenna ports among the plurality of RX antenna ports.
18. The UE according to claim 11, wherein: The plurality of CLI measurements are performed via a plurality of receive RX antenna ports; and The at least one processor is configured to combine the set of RX measurements by: Using a precoder or beam combining the set of RX measurements received via a set of Rx antenna ports among the plurality of RX antenna ports; Wherein, the at least one processor is further configured to: Receive a radio resource control RRC, a media access control MAC-control element CE, or a downlink control information DCI including an indicator corresponding to the precoder or the beam; or Receive a message from a base station that includes a CLI resource configuration indicating the plurality of ports, and wherein the message includes an indicator corresponding to the precoder or the beam.
19. A wireless communication method performed by a base station, the method comprising: Sending, to a user equipment UE, a message that includes a CLI resource configuration indicating a plurality of ports for a plurality of cross-link interference CLI measurements; And Receiving, from the UE, a CLI measurement report based on the plurality of CLI measurements performed by the UE via the plurality of ports, Wherein, a set of CLI measurements from a set of ports of the plurality of ports among the plurality of CLI measurements are combined, wherein the set of CLI measurements are combined before a set of received RX measurements from a set of RX antenna ports of a plurality of RX antenna ports are combined, or the set of RX measurements are combined before the set of CLI measurements are combined.
20. The method according to claim 19, further comprising generating the message, and wherein, The plurality of ports include a plurality of sounding reference signal SRS resources.
21. The method according to claim 19, wherein: The plurality of ports include the same or fewer ports of the sounding reference signal of the attacking UE; The plurality of ports are configured for time division multiplexing across a plurality of time slots, time division multiplexing across a plurality of symbols, or a combination thereof; The plurality of ports have the same time domain configuration as the sounding reference signal SRS transmission from the attacking UE; or A combination thereof.
22. The method according to claim 19, further comprising: Determining a pattern in which the UE uses the plurality of ports, and wherein the pattern includes a per time slot port switching pattern, a per symbol port switching pattern, or a combination thereof; and The pattern indicates using one port per time slot, indicates switching ports per time slot, indicates switching ports per symbol, or a combination thereof; or The message includes an indication of the pattern, and the pattern is defined by a standard.
23. The method according to claim 19, further comprising: Generating an indicator to indicate whether the UE is to receive a set of received RX measurements via a set of Rx antenna ports using a precoder or beam combination; And Sending the indicator to the UE; Wherein: Sending the indicator includes sending a radio resource control RRC, a media access control MAC-control element CE, or a downlink control information DCI that includes the indicator; or The indicator is included in the message.
24. A base station, comprising: At least one processor; And A memory coupled to the at least one processor and storing processor-readable code that, when executed by the at least one processor, is configured to: Initiate sending, to a user equipment UE, a message that includes a CLI resource configuration indicating a plurality of ports for a plurality of cross-link interference CLI measurements; and Receive, from the UE, a CLI measurement report based on the plurality of CLI measurements performed by the UE via the plurality of ports, Among them, a set of CLI measurements from a set of ports of the plurality of ports among the plurality of CLI measurements are combined, where the set of CLI measurements are combined before a set of received RX measurements from a set of RX antenna ports of the plurality of RX antenna ports are combined, or the set of RX measurements are combined before the set of CLI measurements are combined.
25. The base station according to claim 24, wherein, The at least one processor is further configured to generate the message, and where the plurality of ports include a plurality of sounding reference signal (SRS) resources.
26. The base station according to claim 24, where the plurality of ports include the same or fewer ports of the sounding reference signal of the attacking UE; the plurality of ports are configured for time division multiplexing across multiple time slots, time division multiplexing across multiple symbols, or a combination thereof; the plurality of ports have the same time domain configuration as the sounding reference signal (SRS) transmission from the attacking UE; or a combination thereof.
27. The base station according to claim 24, wherein, The at least one processor is further configured to: determine a pattern in which the UE uses the plurality of ports, and where the pattern includes a per-time-slot port switching pattern, a per-symbol port switching pattern, or a combination thereof; and where: the pattern indicates using one port per time slot, indicates switching ports per time slot, indicates switching ports per symbol, or a combination thereof; or the message includes an indication of the pattern, and the pattern is defined by a standard.
28. The base station according to claim 24, wherein, The at least one processor is further configured to: generate an indicator to indicate whether the UE is to receive a set of received RX measurements via a set of Rx antenna ports using a precoder or beam combination; and initiate transmission of the indicator to the UE; and where the indicator is included in the radio resource control (RRC), media access control (MAC)-control element (CE), or downlink control information (DCI), or the message.
29. A device for wireless communication, the device comprising: means for receiving, from a base station, a message including a cross-link interference (CLI) resource configuration indicating a plurality of ports; means for performing one or more CLI measurements on each of the plurality of ports to determine a plurality of measurement values of the plurality of ports; and means for sending a CLI measurement report based on the plurality of measurement values, where the device further comprises: means for combining a set of CLI measurements from a set of ports of the plurality of ports; and means for combining a set of received RX measurements from a set of RX antenna ports of the plurality of RX antenna ports; and where the set of CLI measurements are combined before the set of RX measurements are combined, or the set of RX measurements are combined before the set of CLI measurements are combined.
30. A non-transitory computer-readable medium having instructions stored thereon, the instructions executable by a processor to implement the method according to any one of claims 1 to 10.
31. A device for wireless communication, the device comprising: means for sending, to a user equipment (UE), a message including a CLI resource configuration indicating a plurality of ports for a plurality of cross-link interference (CLI) measurements; and A component for receiving a CLI measurement report from a UE based on a plurality of CLI measurements made by the UE via the plurality of ports, wherein a set of CLI measurements from a set of ports of the plurality of ports among the plurality of CLI measurements are combined, and wherein the set of CLI measurements are combined before a set of received RX measurements from a set of RX antenna ports of a plurality of RX antenna ports are combined, or the set of RX measurements are combined before the set of CLI measurements are combined.
32. A non-transitory computer-readable medium having instructions stored thereon, the instructions being executable by a processor to implement the method according to any one of claims 19 to 23.
Citation Information
Patent Citations
Sounding reference signal and channel state information-reference signal co-design in mobile communications
CN110100467A