WO2020144624A1 - Configuration et communication de rapport de mesurage de cli - Google Patents

Configuration et communication de rapport de mesurage de cli Download PDF

Info

Publication number
WO2020144624A1
WO2020144624A1 PCT/IB2020/050157 IB2020050157W WO2020144624A1 WO 2020144624 A1 WO2020144624 A1 WO 2020144624A1 IB 2020050157 W IB2020050157 W IB 2020050157W WO 2020144624 A1 WO2020144624 A1 WO 2020144624A1
Authority
WO
WIPO (PCT)
Prior art keywords
cli
measurement
wireless device
information
reference signal
Prior art date
Application number
PCT/IB2020/050157
Other languages
English (en)
Inventor
Sebastian FAXÉR
Petter ERSBO
Naga Vishnu Kanth IRUKULAPATI
Jingya Li
Mårten SUNDBERG
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of WO2020144624A1 publication Critical patent/WO2020144624A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present disclosure relates to measurement configuration and reporting in a cellular communications system and, in particular, to Cross-Link Interference (CLI) measurement configuration and reporting in a cellular communications system.
  • CLI Cross-Link Interference
  • Wireless cellular networks are built up of cells, each cell defined by a certain coverage area of a Network Node (NN).
  • the NN communicates with User Equipment (UE) in the network wirelessly.
  • the communication is carried out in either paired or unpaired spectrum.
  • DL downlink
  • UL uplink
  • FDD Frequency Division Duplexing
  • TDD Time Division Duplexing
  • the DL and UL use the same spectrum, which is called TDD.
  • TDD Guard Period
  • a GP serves several purposes.
  • the processing circuitry at the NN and UE needs sufficient time to switch between transmission and reception; however, this is typically a fast procedure and does not significantly contribute to the requirement of the GP size.
  • the GP at the DL-to-UL switch must be sufficiently large to allow a UE to receive a (time-delayed) DL grant scheduling the UL and transmit the UL signal with proper timing advance (compensating for the propagation delay) such that it is received in the UL part of the frame at the NN.
  • the GP at the UL-to-DL switch is created with an offset to the timing advance.
  • the GP should be larger than two times the propagation time towards a UE at the cell edge; otherwise, the UL and DL signals in the cell will interfere. Because of this, the GP is typically chosen to depend on the cell size such that larger cells (i.e., larger inter ⁇ site distances) have a larger GP and vice versa.
  • the GP reduces DL-to-UL interference between NNs by allowing a certain propagation delay between cells without having the DL transmission of a first NN enter the UL reception of a second NN.
  • the DL transmission power can be on the order of 20 decibels (dB) larger than the UL transmission power, and the pathloss between NNs, perhaps above roof top and in Line of Sight (LOS), may often be much smaller than the pathloss between NNs and UEs (in non-LOS).
  • LOS Line of Sight
  • TDD macro networks are typically operated in a synchronized and aligned fashion where the symbol timing is aligned and a semi-static TDD UL/DL pattern is used which is the same for all the cells in the network.
  • NR uses Orthogonal Frequency Division Multiplexing (OFDM) in the DL (i.e., from a NN such as a NR base station (gNB) or base station, to a user equipment or UE).
  • OFDM Orthogonal Frequency Division Multiplexing
  • the basic NR physical resource over an antenna port can thus be seen as a time-frequency grid as illustrated in Figure 1, where a Resource Block (RB) in a 14-symbol slot is shown.
  • a RB corresponds to 12 contiguous subcarriers in the frequency domain. RBs are numbered in the frequency domain, starting with 0 from one end of the system bandwidth.
  • Each Resource Element (RE) corresponds to one OFDM subcarrier during one OFDM symbol interval.
  • Af (15 x 2 a ) kilohertz (kHz) where a E (0,1, 2, 3, 4).
  • Af 15 kHz is the basic (or reference) subcarrier spacing that is also used in LTE.
  • DL and UL transmissions in NR will be organized into equally-sized Subframes (SFs) of 1 millisecond (ms) each, similar to LTE.
  • a SF is further divided into multiple slots.
  • There is only one slot per SF at Af 15 kHz and a slot consists of 14 OFDM symbols.
  • DL transmissions are dynamically scheduled, i.e. in each slot the gNB transmits DL Control Information (DCI) about which UE data is to be transmitted to and which RBs in the current DL slot the data is transmitted on.
  • the control information is carried on the Physical Downlink Control Channel (PDCCH), and data is carried on the Physical Downlink Shared Channel (PDSCH).
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • a UE first detects and decodes PDCCH and, if a PDCCH is decoded successfully, it then decodes the corresponding PDSCH based on the decoded control information in the PDCCH.
  • RSs Reference Signals
  • UL data transmissions carried on Physical Uplink Shared Channel (PUSCH) are also dynamically scheduled by the gNB by transmitting a DCI.
  • the DCI (which is transmitted in the DL region) always indicates a scheduling offset so that the PUSCH is transmitted in a slot in the UL region.
  • LTE special SFs
  • NR flexible slots
  • each radio frame of length 10 ms consists of two half-frames of length 5 ms each.
  • Each half-frame consists of five SFs of length 1 ms.
  • Each SF is defined by two slots of length 0.5 ms each.
  • a subset of SFs is reserved for UL transmissions, and the remaining SFs are allocated for DL transmissions, or for special SFs, where the switch between DL and UL occurs.
  • a special SF is split into three parts: a DL part (Downlink Pilot Time Slot (DwPTS)), GP, and an UL part (Uplink Pilot Time Slot (UpPTS)).
  • DwPTS Downlink Pilot Time Slot
  • UpPTS Uplink Pilot Time Slot
  • Ten different special SF configurations (the lengths of DwPTS, GP and UpPTS in symbols) are supported for LTE TDD configuration.
  • the DL/UL configuration and the configuration of the special SF used in a cell are signaled as part of the system information, which is included in system information block 1 (SIB1) and broadcasted every 80 ms within SF 5.
  • SIB1 system information block 1
  • the enhanced Interference Mitigation and Traffic Adaptation (elMTA) feature was introduced in LTE Release 12 to allow for dynamic and flexible configuration of TDD UL/DL resources. More specifically, a UE can be configured by higher layers to monitor PDCCHs with Cyclic Redundancy Check (CRC) scrambled by elMTA Radio Network Temporary Identifier (RNTI). By detecting the DCI carried on the PDCCHs (i.e., DCI format 1C), the UE knows the reconfigured TDD UL/DL configurations for one or more serving cell(s).
  • CRC Cyclic Redundancy Check
  • RNTI Radio Network Temporary Identifier
  • the reconfigured TDD UL/DL configuration for each serving cell is selected from the seven configurations defined in Table 1 and signaled by the corresponding 3-bit UL/DL configuration index filed in the DCI.
  • Table 1 illustrates the elMTA based flexible TDD frame structure, where "F” denotes a flexible SF, which can be configured either to UL or DL, depending on which TDD UL/DL configuration is selected.
  • the TDD UL/DL reconfiguration can be operated on a radio frame basis, and the reconfiguration can be applied for a few radio frames configured by higher layer parameters.
  • NR supports semi-static TDD UL/DL configurations by cell-specific Radio Resource Control (RRC) signaling (TDD-UL-DL-ConfigurationCommon in SIB 1).
  • RRC Radio Resource Control
  • TDD-UL-DL-ConfigurationCommon up to two concatenated TDD DL-UL patterns can be configured in NR.
  • Each TDD DL-UL pattern is defined by a number of consecutive full DL slots at the beginning of the TDD pattern, a number of consecutive DL symbols in the slot following the full DL slots, a number of symbols between DL and UL segments (GP, or flexible symbols), a number of UL symbols in the end of the slot preceding the first full UL slot, and a number of consecutive full UL slots at the end of the TDD pattern.
  • the periodicity of a TDD DL-UL pattern can be configured ranging from 0.5 ms to 10 ms.
  • a UE can be additionally configured by an UE-specific RRC signaling (TDD-UL-DL-ConfigDedicated) to override only the flexible symbols provided in the cell-specific semi-static TDD configuration.
  • TDD-UL-DL-ConfigDedicated UE-specific RRC signaling
  • NR supports dynamic TDD, that is, dynamical signaling of the DL, flexible, and UL allocation on symbol level for one or multiple slots to a group of UEs by using a Slot Format Indicator (SFI) in the DCI carried on a group-common PDCCH (DCI Format 2_0).
  • SFI Slot Format Indicator
  • the SFI field in a DCI format 2_0 indicates a group of UEs a slot format for each slot in a number of slots starting from a slot where the DCI format 2_0 is detected.
  • a slot format is identified by a corresponding format index as provided in Table 2 (which is a subset of rows from Table 11.1.1-1 of 3GPP TS 38.213, where 'D' denotes a downlink DL symbol, 'U' denotes an uplink UL symbol, and 'F' denotes a flexible symbol.
  • Table 2 Slot formats for normal cyclic prefix (a subset of rows from TS 38.213 Table
  • the support for dynamic TDD enables NR to maximally utilize available radio resources in the most efficient way for both traffic directions.
  • dynamic TDD brings significant performance gain at low to medium loads, the performance benefits become smaller as the traffic load increases due to CLI.
  • CLI very strong interference
  • UE-to-UE interference UE-to-UE CLI
  • NN2 will also experience interference (i.e., CLI) from NN1 since NN1 is transmitting (DL).
  • CLI This type of CLI is referred to herein as NN-to-NN interference or NN-to-NN CLI.
  • CLI is to be distinguished from conventional inter-cell interference, which is NN-to-UE interference or UE-to-NN interference.
  • CLI is the main impediment to performance gains from dynamic TDD operation at higher loads as compared to static TDD.
  • Most solutions to minimize the CLI involve defining signaling between NNs to exchange information regarding the sources and the levels of interference in the operator network.
  • CLI measurements can be adopted. These measurements can be based on for example the total received signal, e.g. Received Signal Strength Indicator (RSSI), or the received signal strength from a specific (set of) transmitting NN/UE, e.g. Received Signal
  • RSRP Reference Power
  • CSI feedback is used by a NN to obtain DL CSI from a UE in order to determine how to transmit DL data to a UE over a plurality of antenna ports.
  • CSI typically includes a channel Rank Indicator (RI), a Precoding Matrix Indicator (PMI), and a Channel Quality Indicator (CQI).
  • RI is used to indicate the number of data layers that can be transmitted simultaneously to a UE
  • PMI is used to indicate the precoding matrix over the indicated data layers
  • CQI is used to indicate the modulation and coding rate can be achieved by with the indicated rank and the precoding matrix.
  • P-CSI Periodic CSI
  • Parameters such as periodicity and slot offset are configured semi-statically by higher layer RRC signaling from the NN to the UE.
  • Aperiodic CSI (A-CSI) Reporting on PUSCH This type of CSI reporting involves a single-shot (i.e., one time) CSI report by a UE which is dynamically triggered by the NN using DCI. Some of the parameters related to the configuration of the A- CSI report is semi-statically configured by RRC but the triggering is dynamic.
  • SP-CSI Semi-Persistent CSI
  • SP-CSI reporting has a periodicity and slot offset which may be semi-statically configured.
  • a dynamic trigger from the NN to the UE may be needed to allow the UE to begin SP-CSI reporting.
  • a dynamic trigger from the NN to the UE is needed to request the UE to stop the SP-CSI reporting.
  • NZP Non-Zero Power
  • NZP CSI-RS is used for measuring downlink CSI by a UE.
  • CSI-RS is
  • the CSI-RSs are multiplexed in time, frequency, and code domain such that the channel between each Tx antenna port at the NN and each receive (Rx) antenna port at a UE can be measured by the UE.
  • a time frequency resource used for transmitting CSI- RS is referred to as a CSI-RS resource.
  • Periodic CSI-RS (P CSI-RS): CSI-RS is transmitted periodically in certain slots.
  • This CSI-RS transmission is semi-statically configured using parameters such as CSI-RS resource, periodicity, and slot offset.
  • Aperiodic CSI-RS (AP CSI-RS): This is a one-shot CSI-RS transmission that can happen in any slot. Here, one-shot means that CSI-RS transmission only happens once per trigger.
  • the CSI-RS resources i.e., the RE locations which consist of subcarrier locations and OFDM symbol locations) for aperiodic CSI-RS are semi-statically configured.
  • the transmission of AP CSI-RS is triggered by dynamic signaling through PDCCH using the CSI request field in UL DCI.
  • Multiple AP CSI-RS resources can be included in a CSI-RS resource set and the triggering of AP CSI-RS is on a resource set basis.
  • SP CSI-RS Semi-Persistent CSI-RS
  • resources for SP CSI- RS transmissions are semi-statically configured with parameters such as periodicity and slot offset.
  • dynamic signaling is needed to activate and deactivate the CSI-RS transmission.
  • the NN RRC configures the UE with S c CSI triggering states.
  • Each triggering state contains the A-CSI report setting to be triggered along with the associated AP CSI-RS resource sets.
  • a UE can be configured with N3 1 CSI reporting settings (i.e., CSI- ReportConfig), or M31 resource settings (i.e., CSI-ResourceConfig), where each CSI reporting setting is linked to one or more resource setting for channel and/or
  • N3 1 CSI reporting settings i.e., CSI- ReportConfig
  • M31 resource settings i.e., CSI-ResourceConfig
  • the CSI framework is modular, meaning that several CSI reporting settings may be associated with the same resource setting.
  • the CSI- ReportCon fig Inform on Element comprises the following configurations:
  • reportConfigType o Defines the time domain behavior, i.e. P-CSI, SP-CSI, or A-CSI along with the periodicity and slot offset of the report for P-CSI.
  • the reported CSI parameter(s) i.e., the CSI content
  • the reported CSI parameter(s) i.e., the CSI content
  • PMI PMI
  • CQI CQI
  • RI Layer Indicator
  • LI CSI-RS Resource Index
  • Ll- RSRP Ll- RSRP
  • CBSR Codebook Subset Restriction
  • o Define the frequency granularity of PMI and CQI (wideband or subband), if reported, along with the CSI reporting band, which is a subset of subbands of the Bandwidth Part (BWP) which the CSI corresponds to.
  • BWP Bandwidth Part
  • a resource setting comprises a list of either S> 1 set(s) of NZP CSI-RS resources or a list of 5> 1 set(s) of CSI Interference Measurement (CSI-IM) resources. Additionally, a NZP CSI-RS-based resource setting may comprise a list of 5>1 set(s) of Synchronization Signal Block (SSB) resources.
  • a NZP CSI-RS resource set contains the configuration of K s 3 1 CSI-RS resources, where the configuration of each CSI-RS resource includes at least: mapping to REs, the number of antenna ports, time domain behavior, etc.
  • Resource sets comprising CSI-IM or SSB resources are defined in a similar manner.
  • a resource setting is also associated with a time domain behavior (periodic, semi-persistent, or aperiodic) and the resource setting can only comprise sets of resources with the same time domain behavior as that of the resource setting itself.
  • A-CSI reporting over PUSCH is triggered by a DCI for scheduling PUSCH, i.e. a UL DCI.
  • a special CSI request bit field in the DCI is defined for the purpose.
  • Each value of the CSI request bit field defines a codepoint and each codepoint can be associated with a higher layer configured CSI report trigger state. The first codepoint with all "0"s corresponds to no CSI request.
  • each of the S c triggering states comprise an indication of one or more A-CSI reports to be triggered.
  • each triggered A-CSI report may also trigger aperiodic NZP CSI-RS resource sets for channel measurements, aperiodic CSI-IM, and/or aperiodic NZP CSI-RS for interference measurements.
  • each CSI report trigger state defines at least the following information:
  • Type II i.e. wideband or subband, Type I or Type II
  • the bit width, L c , of the CSI request field is configurable from 0 to 6 bits.
  • S CI is larger than the number of codepoints, i.e. S c > 2 LC - 1
  • MAC Medium Access Control
  • CE Control Element
  • Figure 4 is an illustration of A-CSI reporting.
  • a method performed by a wireless device for performing CLI measurements comprises receiving, via one or more Radio Resource Control (RRC) messages, information that configures a CLI measurement to be performed by the wireless device, wherein the CLI measurement is a measurement of CLI at the wireless device that results from uplink transmissions from one or more other wireless devices.
  • RRC Radio Resource Control
  • the method further comprises performing the CLI measurement in accordance with the received information and reporting the CLI measurement to a network node. In this manner, CLI measurement and reporting is accommodated by RRC messaging.
  • a wireless device for performing CLI measurements is adapted to receive, via one or more RRC messages, information that configures a CLI measurement to be performed by the wireless device, wherein the CLI measurement is a measurement of CLI at the wireless device that results from uplink transmissions from one or more other wireless devices.
  • the wireless device is further adapted to perform the CLI measurement in accordance with the received information and report the CLI measurement to a network node.
  • the wireless device comprises one or more
  • the processing circuitry is configured to cause the wireless device to receive, via the one or more RRC messages, the information that configures the CLI measurement to be performed by the wireless device, perform the CLI measurement in accordance with the received information, and report the CLI measurement to the network node.
  • Embodiments of a method performed by a network node are also disclosed.
  • a method performed by a network node for configuring a wireless device to perform CLI measurements comprises transmitting, to a wireless device via one or more RRC messages, information that configures a CLI measurement to be performed by the wireless device, wherein the CLI measurement is a
  • a network node for configuring a wireless device to perform CLI measurements is adapted to transmit, to a wireless device via one or more RRC messages, information that configures a CLI measurement to be performed by the wireless device, wherein the CLI measurement is a measurement of CLI at the wireless device that results from uplink transmissions from one or more other wireless devices.
  • the network node comprises processing circuitry configured to cause the network node to transmit, to the wireless device via the one or more RRC messages, the information that configures the CLI measurement to be performed by the wireless device.
  • Figure 1 illustrates the basic New Radio (NR) physical resource as a time- frequency grid
  • FIG. 2 illustrates the issue of Cross-Link Interference (CLI) in a dynamic Time Division Duplexing (TDD) system
  • Figure 3 illustrates the issue of CLI in a NR dynamic TDD system in a given slot
  • FIG. 4 is an illustration of Aperiodic Channel State Information (CSI) (A-CSI) reporting;
  • Figure 5 illustrates one example of a cellular communications system in which embodiments of the present disclosure may be implemented
  • FIG. 6 illustrates the operation of a NN and a User Equipment (UE) for CLI measurement configuration and reporting uses a Radio Resource Control (RRC) framework in accordance with some of the embodiments of the present disclosure
  • Figure 7 illustrates the operation of a NN and a UE to perform CLI
  • Figure 8 illustrates the operation of a NN and a UE to perform CLI
  • CLI Interference Measurement Resources CLI-IMRs
  • Figure 9 illustrates the operation of a NN and a UE to perform CLI
  • Figure 10 illustrates the operation of a NN and a UE to perform CLI
  • Figures 11 through 13 are schematic block diagrams of example embodiments of a radio access node.
  • Figures 14 and 15 are schematic block diagrams of a UE.
  • Ns Network Nodes
  • BS Base Station
  • IAB Integrated Access and Backhaul
  • MSR Multi-Standard Radio
  • eNB enhanced or evolved Node B
  • NR New Radio
  • gNB Master eNB
  • SeNB Secondary eNB
  • RNC Radio Network Controller
  • BSC Base Side Unit
  • RSU Road Side Unit
  • BTS Base Transceiver Station
  • AP Access Point
  • RRU Remote Radio Unit
  • RRH Remote Radio Head
  • DAS Distributed Antenna System
  • core network node e.g., Mobile Switching Center (MSC), Mobility Management Entity (MME) etc.
  • O&M Operations Support System
  • SON Self-Organizing Network
  • positioning node e.g., Evolve
  • a User Equipment can be generalized to correspond to a user terminal, or a network node like a relay node or an IAB node.
  • An uplink (UL) can be generalized to correspond to UL in the access link, and UL in the backhaul link.
  • a downlink (DL) can be generalized to correspond to DL in the access link, and DL in the backhaul link.
  • Radio Access Technology may refer to any RAT, e.g.
  • UTRA Universal Terrestrial Radio Access
  • E-UTRA Evolved UTRA
  • NB-IoT narrowband Internet of Things
  • WiFi Bluetooth
  • next generation RAT which is referred to as NR, Fourth Generation (4G), Fifth Generation (5G), etc.
  • NR Fifth Generation
  • 4G Fourth Generation
  • 5G Fifth Generation
  • Any of the first and the second nodes may support a single or multiple RATs.
  • the term signal used herein can be any physical signal or physical channel.
  • downlink physical signals are Reference Signals (RSs) such as Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Cell-Specific Reference Signal (CRS), Positioning Reference Signal (PRS), Channel State Information (CSI) Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS), Narrowband Reference Signal (NRS), Narrowband PSS (NPSS), Narrowband SSS (NSSS),
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • CRS Cell-Specific Reference Signal
  • PRS Positioning Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • DMRS Demodulation Reference Signal
  • Narrowband Reference Signal Narrowband Reference Signal
  • NPSS Narrowband PSS
  • NSSS Narrowband SSS
  • Synchronization Signal (SS), Multicast-Broadcast Signal Frequency Network (MBSFN) RS, etc.
  • uplink physical signals are RSs such as Sounding Reference Signal (SRS), DMRS, etc.
  • SRS Sounding Reference Signal
  • DMRS Downlink Reference Signal
  • the term physical channel (e.g., in the context of channel reception) used herein is also referred to as channel.
  • the physical channel carries higher layer information (e.g., Radio Resource Control (RRC), logical control channel, etc.).
  • RRC Radio Resource Control
  • Cross-Link Interference (CLI) measurement report might be generalized to a/any measurement report, not necessarily related to CLI, although the present disclosure introduces them in this context.
  • UE-to-UE CLI measurements may provide useful information to the NN which enables scheduling coordination, it is unclear how to configure a UE to perform measurements and how such measurements can effectively be reported to the NN taking into account flexibility and reporting overhead.
  • CLI measurements are reported using the RRC measurement reporting framework. Certain embodiments may provide one or more of the following technical advantage(s). CLI reporting can be accommodated by RRC messages compared to more complex reporting procedures on the physical layer.
  • CLI measurements are incorporated into the NR CSI framework.
  • aspects include:
  • Certain embodiments may provide one or more of the following technical advantage(s).
  • CLI measurements and reporting can be seamlessly integrated into existing NR functionality, providing large flexibility in configuring and triggering different types of CLI measurements without introducing separate mechanisms, which may incur additional overhead and complexity.
  • This disclosure presents various embodiments of systems and methods for configuring a UE to perform CLI measurements and the associated reporting
  • the present disclosure describes systems and methods for configuring a UE to report CLI measurement comprised in RRC messages.
  • Figure 5 illustrates one example of a cellular communications network 500 in which embodiments of the present disclosure may be implemented.
  • the cellular communications network 500 is a 5G NR network; however, the present disclosure is not limited thereto.
  • the cellular communications network 500 includes base stations 502-1 and 502-2, which in 5G NR are referred to as gNBs, controlling corresponding macro cells 504-1 and 504-2.
  • the base stations 502-1 and 502-2 are generally referred to herein collectively as base stations 502 and individually as base station 502.
  • the macro cells 504-1 and 504-2 are generally referred to herein collectively as macro cells 504 and individually as macro cell 504.
  • the cellular communications network 500 may also include a number of low power nodes 506-1 through 506-4 controlling corresponding small cells 508-1 through 508-4.
  • the low power nodes 506-1 through 506-4 can be small base stations (such as pico or femto base stations) or RRHs, or the like. Notably, while not
  • one or more of the small cells 508-1 through 508-4 may alternatively be provided by the base stations 502.
  • the low power nodes 506-1 through 506-4 are generally referred to herein collectively as low power nodes 506 and individually as low power node 506.
  • the small cells 508-1 through 508-4 are generally referred to herein collectively as small cells 508 and individually as small cell 508.
  • the base stations 502 (and optionally the low power nodes 506) are connected to a core network 510.
  • the base stations 502 and the low power nodes 506 provide service to wireless devices 512-1 through 512-5 in the corresponding cells 504 and 508.
  • the wireless devices 512-1 through 512-5 are generally referred to herein collectively as wireless devices 512 and individually as wireless device 512.
  • the wireless devices 512 are also sometimes referred to herein as UEs.
  • UE-to-UE CLI i.e., CLI at one UE resulting from UL transmission by another UE
  • NN-to-NN CLI i.e., CLI at one NN resulting from DL transmission by another NN
  • the UE performing and reporting the CLI measurements may or may not be aware that the measurements and reports described herein are for CLI measurement purposes. That is, the UE may be instructed to perform a generic interference measurement and report according to the characterized aspects described herein, not being aware of what particular kind of interference that the measurement captured and not being aware of the purpose (e.g., CLI mitigation) for which the recipient of the measurement report will utilize the measurement report.
  • CLI mitigation e.g., CLI mitigation
  • the CLI measurement reporting is configured by the NN (e.g., the base station 502) to the UE (e.g., the wireless device 512) by RRC signaling.
  • the measurement configuration may include:
  • the measurement configuration is given by a
  • the measurement object indicates the time and frequency resources where the measurement is to be performed.
  • the measurement object configuration may include a carrier frequency indicator such as an ARFCN- Va!ueNR.
  • the measurement object configuration may include information to identify the RS, such as the RS sequence or sequence initialization seed, a subcarrier spacing used to transmit the RS, and a timing offset relative to the UE's DL frame timing whereon the RS is assumed to be received.
  • the time resources to measure on could be configured by the NN to include time resources based on information of where CLI is known to occur and/or where CLI might occur and/or where CLI is known not to occur. By comparing such measurements provided by the UE, the NN can determine the level of interference caused by CLI at the measuring UE. Furthermore, the time resources could include resources on, e.g., slot-level or symbol-level, using one or more slots and/or symbols configured to perform the measurement.
  • the frequency resources could include a certain frequency range, and possibly a subset of Resource Elements (REs) within that frequency range on which to measure.
  • REs Resource Elements
  • One example of a subset could be the use of a comb-based measurement, performing measurements on every Xth RE in frequency.
  • the signal measurement to be provided could be RSSI and/or RSRP based measurements.
  • the signal measurements could further be configured to be processed by the UE before reporting it to the NN, e.g. applying averaging over a subset of the configured time and frequency resources.
  • the UE is configured to apply a layer 3 filter to filter the measurement results across multiple measurement occasions so as to potentially improve the reliability of the measurement.
  • the layer 3 filter may for instance be a Finite Impulse Response (FIR) or Infinite Impulse Response (HR) filter, with its properties configured to the UE or predefined in specification.
  • FIR Finite Impulse Response
  • HR Infinite Impulse Response
  • the UE may also be configured with one or more measurement identifiers, which link a measurement object with a report configuration.
  • the UE is also configured with one or more report configurations, which indicate how the CLI measurements are to be reported.
  • the UE is configured by a report configuration to provide periodic reports at certain time intervals, e.g. once every fifth second.
  • the UE is configured by a report configuration to be triggered based on events at the UE.
  • an event is triggered by: • a certain level of the signal measurement, the level defined by a threshold that can be either predefined or configured to the UE; or
  • the resource sets could for example be configured by the network to contain resources not impacted by CLI in one set, and resources potentially impacted by CLI in the other set.
  • the resource set may for instance correspond to different measurement objects, or it may be separately defined reference resources.
  • the UE is, either in a measurement object or report configuration, configured with one or more offset values such that the event is only triggered if the difference in the measurement quantity is larger than the configured offset.
  • the UE may additionally be configured with one or more quantity
  • configurations which may comprise information of what filtering to perform on the CLI measurements and what quantization range to use for RSRP/RSSI reporting.
  • the UE may additionally be configured with measurement gaps, which indicate periods in time where the UE can perform measurements without being scheduled with UL or DL transmissions.
  • the message is sent to lower layers for transmission.
  • the transmission is carried out using an RRC message.
  • the transmission is carried out using a Medium Access Control (MAC) Control Element (CE).
  • MAC Medium Access Control
  • CE Control Element
  • Figure 6 illustrates the operation of a network node and a UE in accordance with at least some of the embodiments described above.
  • the network node is a base station 502
  • the UE is a wireless device 512.
  • the base station 502 transmits one or more RRC messages to the wireless device 512 that configure CLI measurement(s) to be performed by the wireless device 512 (step 600).
  • the RRC message(s) may include a measurement object(s) that configure the CLI measurement(s) to be performed (e.g., configures the time and frequency resources on which the CLI measurements are to be performed by the wireless device 512, etc.).
  • the RRC message(s) may include a
  • the wireless device 512 performs a CLI measurement(s) in accordance with the received
  • step 602 reports the CLI measurement(s) to the base station 502, e.g., in accordance with associated report configuration(s) (step 604).
  • this disclosure presents various additional embodiments of systems and methods for configuring a UE to perform CLI measurements and the associated reporting mechanisms. These embodiments are described below with respect to a number of different “aspects" of the present disclosure. Note that while described separately, these aspects may be used separately or used together in any desired combination.
  • CLI there are two types, namely, UE-to-UE CLI (i.e., CLI at one UE resulting from UL transmission by another UE) and NN-to-NN CLI (i.e., CLI at one NN resulting from DL transmission by another NN).
  • UE-to-UE CLI i.e., CLI at one UE resulting from UL transmission by another UE
  • NN-to-NN CLI i.e., CLI at one NN resulting from DL transmission by another NN.
  • these CLI measurements are UE-to-UE CLI measurements (i.e., measurements of CLI at one UE resulting from UL transmission by another UE).
  • the UE may or may not be aware that the measurements and reports described herein are for CLI measurement purposes.
  • the UE may be instructed to perform a generic interference measurement and report according to the characterized aspects described herein, not being aware of what particular kind of interference that the measurement captured and not being aware of the purpose (e.g., CLI mitigation) for which the recipient of the measurement report is to utilize the measurement report.
  • CLI mitigation e.g., CLI mitigation
  • the UE is configured, e.g., via higher layer signaling, such as RRC, with one or more CLI-IMRs (also referred to herein as a "CLI resources” or "CLI-IM resources”). More specifically, the UE is configured with one or more CLI-IMR definitions, each being information that defines a respective CLI-IMR.
  • CLI-IMRs also referred to herein as a "CLI resources” or "CLI-IM resources”
  • CLI-IMR definitions each being information that defines a respective CLI-IMR.
  • a CLI-IMR is physical resources on which the UE is to perform a CLI measurement.
  • the CLI-IMR definition may comprise an indication of which frequency domain subcarriers in the RE grid are to be used for the CLI measurement.
  • the CLI-IMR definition may also comprise information that indicates which Orthogonal Frequency Division Multiplexing (OFDM) symbol(s) within a slot are to be used for the CLI measurement.
  • OFDM Orthogonal Frequency Division Multiplexing
  • Such an indication of subcarriers and/or OFDM symbols may be given jointly, implying that certain time-frequency REs within the slot are indicated, or the indications of subcarriers and OFDM symbols may be given separately.
  • the time and frequency resources for CLI measurement may be given indirectly, such as by indicating another type of resource or an aggregation or accumulation of other types of resources.
  • the CLI-IMR definition may, in some embodiments, comprise information that defines the time domain behavior of the CLI-IMR, such as aperiodic, semi-persistent, or periodic time domain behavior.
  • the time domain behavior of the CLI-IMR is not given by the CLI-IMR definition, but instead the time domain behavior may depend on the context in which the CLI-IMR is referenced, i.e. the CLI-IMR definition itself can be said to be time domain behavior agnostic.
  • the time domain behavior of the CLI-IMR may be inferred from a higher order Information Element (IE) which comprises the definition of the CLI-IMR, or by a higher order IE which references the CLI-IMR or comprises an indication of the CLI-IMR.
  • IE Information Element
  • the CLI- IMR definition may comprise a periodicity of the CLI-IMR, which may in some
  • the periodicity may be given in absolute time such as a number of milliseconds, or the semi-static Time Division Duplexing (TDD) DL/UL periodicity.
  • the CLI-IMR definition may also comprise a timing offset, such that the multiple time domain locations of the CLI-IMR are given by the periodicity and timing offset jointly.
  • the timing offset may be given as a slot offset.
  • the slot offset and periodicity may be indicated jointly in order to conserve overhead of the indication since not all slot offsets are applicable for all periodicities, but the slot offset and periodicity may alternatively be indicated separately.
  • the UE may be assumed to continuously perform measurements on a configured CLI-IMR with periodic time domain behavior; however, a configured CLI-IMR with semi-persistent time domain behavior may need to be activated before the UE should perform CLI measurements on the CLI-IMR.
  • Such activation (and deactivation) messages may be transmitted to the UE, e.g., using L2 signaling, such as a MAC CE message.
  • L2 signaling such as a MAC CE message.
  • One type of CLI-IMR is associated with RSRP-based CLI measurement.
  • the definition of such a CLI-IMR comprises an indication of a RS to be measured upon, such as an SRS.
  • the CLI-IMR definition may thus comprise a SRS-Resource (as defined in Technical Specification (TS) 38.311 V15.3.0) configuration, comprising the number of ports, resource mapping in time, frequency domain position, and sequence type. It may also comprise only a subset of fields of SRS-Resource that are relevant for CLI
  • spatial Relationlnfo and ptrs-Portlndex comprised in SRS- Resource may be omitted from the definition since those fields may not relate to how a UE would perform CLI measurement.
  • additional information may be included in the CLI-IMR, such as relative timing offset to account for a difference in the SRS timing relative to the DL frame timing of the measuring UE.
  • CLI-IMR Another type of CLI-IMR is associated with RSSI-based CLI measurement.
  • the definition of such a CLI-IMR is not associated with a RS but instead directly indicates the physical resources whereon the UE should measure CLI.
  • the indication may comprise the OFDM symbols within the slot and the measurement bandwidth such as the number of contiguous Physical Resource Blocks (PRBs) within the carrier bandwidth or Bandwidth Part (BWP), in some embodiments given as a multiple x of a number K of adjacent PRBs, such that the granularity of the definition in the frequency domain is K PRBs and the total measurement bandwidth is xK PRBs.
  • the definition may also comprise which subset of subcarriers within the measurement bandwidth shall be used for the CLI measurement, or alternatively, which REs within a Resource Block (RB) and slot are to be used.
  • the subset of subcarriers is indicated as a RE or subcarrier pattern applied within a RB or RB and slot, such as a 4x1, 2x2,
  • FxT denotes a number of subcarriers F and a number of OFDM symbols T.
  • a frequency domain density L e (1,2,3 ... ⁇ on a RB level may be indicated, implying that the CLI-IMR is present only on every L:th RB.
  • n Repetition Factor
  • One or more CLI-IMRs may be configured to the UE in the form of a list (or set) of CLI-IMRs (or CLI-IMR definitions), wherein each defined CLI-IMR may be associated with a CLI-IMR ID.
  • Multiple lists of CLI-IMRs (or CLI-IMR definitions) may also be configured to the UE, where the different lists may separate the CLI-IMRs based on for instance CLI-IMR type or time domain behavior.
  • the CLI-IMR definition may also comprise an assumption or indication of a UE receive (Rx) beam setting to be applied when performing the CLI measurement.
  • a CLI-IMR may be associated with a Quasi Co-Location (QCL) Type D relation to a DL (or UL) RS, that is, a RS may act as QCL source with respect to QCL Type D (spatial QCL) to the CLI-IMR.
  • QCL Quasi Co-Location
  • a RS may act as QCL source with respect to QCL Type D (spatial QCL) to the CLI-IMR.
  • QCL Quasi Co-Location
  • Such a QCL relation may be explicitly configured as part of the CLI-IMR definition or may be indirectly given via an associated Transmission Configuration Indication (TCI) state, which acts as a QCL proxy.
  • TCI Transmission Configuration Indication
  • the QCL source relation such as the TCI state, may be directly associated to the CLI-IMR or given by a higher order IE dependent on the context by which the CLI-IMR is referred.
  • the NN may infer the CLI from different receive directions at the UE which may assist in scheduling coordination for CLI mitigation.
  • Figure 7 illustrates the operation of a UE (e.g., a wireless device 512) and a NN (e.g., a base station 502) in accordance with at least some embodiments of Aspect #1.
  • the NN is a base station 502
  • the UE is a wireless device 512; however, the present disclosure is not limited thereto.
  • the base station 502 sends, to the wireless device 512, a CLI-IMR configuration that includes information that defines one or more CLI-IMRs (step 700).
  • the information that defines a CLI-IMR is referred to herein as a "CLI-IMR definition".
  • a CLI-IMR is physical resources on which the wireless device 512 is to perform a CLI measurement. Further details of various embodiments of the CLI-IMR configuration and the CLI-IMR(s) are provided above and therefore not included here.
  • the wireless device 512 performs CLI measurement(s) in accordance with the CLI-IMR configuration (step 702) and reports the CLI measurement(s) or information derived therefrom to the base station 502 (step 704).
  • Aspect #2 Aggregation/Grouping of CLI-IMRs into resource sets and/or resource settings
  • the UE is configured via higher layer signaling to group one or more CLI-IMRs in different levels for the purpose of efficient configuration and triggering of multiple CLI measurements.
  • one or more CLI-IMRs may be grouped into a CLI-IMR set, where a CLI- IMR set is associated with a CLI measurement report. For instance, in a certain CLI measurement report, a CLI measurement for each CLI-IMR in the CLI-IMR set may be reported. This may be useful if each CLI-IMR corresponds to a certain interference hypothesis, where for instance each hypothesis corresponds to different UEs or sets of UEs transmitting interference from adjacent cells. As another example, each
  • interference hypothesis corresponds to the NN's knowledge about the CLI situations (e.g., always CLI, potential CLI, or no CLI) for the CLI-IMR.
  • each interference hypothesis corresponds to the NN's knowledge or estimation about different Adjacent Channel Interference (ACI) situations (e.g., potential ACI or no ACI), or the NN's knowledge or estimation about different ACI+CLI situations.
  • ACI Adjacent Channel Interference
  • multiple CLI-IMR sets may be configured to the UE.
  • Different CLI measurement reports may be configured or triggered for the different sets of hypotheses, for instance with different reporting periodicity.
  • the different CLI-IMR sets may be of different size, i.e. comprising a different number of CLI-IMRs. This allows reporting for instance a larger set of interference hypotheses more seldom than a smaller set so as to reduce the reporting overhead.
  • Measurements corresponding to different CLI-IMR sets may also be aperiodically triggered by the NN, depending on the traffic situation and buffer status of the UEs in the interfering neighboring cells.
  • one or more CLI-IMR sets are further grouped into CLI resource settings. That is, a CSI-ResourceConfig may be extended to optionally comprise a list of CLI-IMR sets instead of lists of CSI-IM resource sets or Non-Zero Power (NZP) CSI-RS resource sets. Grouping multiple CLI-IMR sets in such a fashion may be useful for aperiodic CLI reporting where a CLI resource setting is associated with a report setting. Different CLI-IMR sets corresponding to the same report setting may be associated with different aperiodic trigger states. Such a grouping and association is useful in order to reduce the overhead of RRC configuration as the reporting configuration is the same irrespective of which CLI-IMR set is used for measurement and thus the reporting information does not need to be duplicated.
  • NZP Non-Zero Power
  • Figure 8 illustrates the operation of a UE (e.g., a wireless device 512) and a NN (e.g., a base station 502) in accordance with at least some embodiments of Aspect #2.
  • the NN is a base station 502
  • the UE is a wireless device 512; however, the present disclosure is not limited thereto.
  • the base station 502 sends, to the wireless device 512, a CLI-IMR configuration that includes information that defines multiple CLI-IMRs (step 800).
  • the base station 502 also sends one or more CLI-IMR aggregation configuration(s) to the wireless device 512 (step 802).
  • the aggregation configuration(s) define one or more CLI-IMR sets, as described above. Further, in some embodiments, the aggregation configuration(s) may further group two or more CLI-IMR sets into a single group, as described above.
  • the wireless device 512 performs CLI measurement(s) in accordance with the CLI-IMR configuration (step 804) and reports the CLI measurement(s) or information derived therefrom to the base station 502 in accordance with the CLI-IMR aggregation configuration(s), as described above (step 806). For example, the CLI-IMR measurements for multiple CLI-IMRs grouped into a single CLI-IMR set are reported in a single report.
  • the UE is configured via higher layer signaling with at least one CLI measurement report configuration.
  • the CLI measurement report is treated as a type of CSI report and the CSI report setting configuration in CSI-ReportConfig ⁇ s extended to support CLI
  • CSI-ReportConfig may also be extended to
  • CSI-ResourceConfig comprising CLI-IMR resource sets, or alternatively, to CLI-IMR resource set(s) directly or even one or more CLI-IMR(s) directly.
  • a rule may be introduced stating that the aforementioned new field is optionally present conditioned on that reportQuantity indicates that the CSI report setting corresponds to CLI measurement.
  • There may also be a rule stating that no other CSI-ResourceConfig can be associated with the CSI-ResourceConfig in this case, i.e.
  • csi-IM- ResourcesForlnterference and nzp-CSI-RS-ResourcesForlnterference may not be present.
  • the resourcesForChannelMeasurement field is mandatory present in CSI-ReportConfig and can hence not be omitted in this case. To solve this issue, there may be a rule stating that the resourcesForChannelMeasurement field is ignored.
  • that field may indicate a CSI-ResourceConfig comprising CLI-IMR resource sets instead of introducing a new dedicated field for this purpose (i.e., di-IM- ResourcesForlnterference).
  • CLI measurement reports are treated as one special case of CSI report and therefore the CSI reporting mechanisms, such as configuration and triggering, encoding in UL Control Information (UCI), transmission on Physical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH), etc., may be reused with minimal or no change.
  • UCI UL Control Information
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • Figure 9 illustrates the operation of a UE (e.g., a wireless device 512) and a NN (e.g., a base station 502) in accordance with at least some embodiments of Aspect #3.
  • the NN is a base station 502
  • the UE is a wireless device 512; however, the present disclosure is not limited thereto.
  • the base station 502 sends, to the wireless device 512, a CLI-IMR configuration that includes information that defines one or more CLI-IMRs (step 900).
  • the base station 502 also sends one or more CLI-IMR measurement report configuration(s) to the wireless device 512 (step 902).
  • the measurement report configuration(s) is sent via higher layer signaling such as, e.g., in a CSI report setting configuration.
  • the base station 502 may optionally send, to the wireless device 512, one or more CLI-IMR aggregation
  • the wireless device 512 performs CLI measurement(s) in accordance with the CLI-IMR configuration (step 904) and reports the CLI measurement(s) or information derived therefrom to the base station 502 in accordance with the CLI-IMR measurement report configuration(s), as described above (step 906).
  • Another aspect of the present disclosure relates to the CLI measurement quantity.
  • the UE reports, for each CLI-IMR in the CLI-IMR set, an RSRP or RSSI value quantized to a number of bits.
  • An example of such quantization for RSRP is given in Table 5 below.
  • the UE is configured (e.g., in the measurement report configuration as described above) to only report the strongest K RSRP/RSSI values as well as the indices of the corresponding CLI-IMRs within the CLI-IMR set.
  • the selected indices may for instance be conveyed using a combinatorial numbering index using [log 2 ( ⁇ )j bits, where N 3 1 is the number of CLI-IMRs in the CLI-IMR set and 1 ⁇ K £ N.
  • the K indices may be conveyed directly using K ⁇ log 2 (N)] bits.
  • a differential encoding scheme is used, where a number K strongest RSRP/RSSI values are indicated among with the indices of the corresponding CLI-IMRs within the CLI-IMR set.
  • K strongest RSRP/RSSI values are indicated among with the indices of the corresponding CLI-IMRs within the CLI-IMR set.
  • RSRP/RSSI is then reported as an absolute value, while the second strongest is reported as a differential RSRP/RSSI value relative to the strongest RSRP/RSSI value, and so forth.
  • a differential encoding scheme is used when each CLI-IMR in the CLI-IMR set corresponds to a certain CLI hypothesis (e.g., always CLI, potential CLI, or no CLI).
  • the RSRP/RSSI associated to the CLI-IMR that will not be affected by CLI is assumed to be the reference and reported as an absolute value, while the RSRP/RSSI associated to other interference hypotheses are reported as a differential value relative to the reference value. It is also possible to define the RSRP/RSSI associated to the CLI-IMR that will always be affected by CLI is selected as the reference.
  • the same methodology can be applied for the cases where the interference hypothesis also comprises the NN's knowledge about the ACI situations.
  • the resource index of the reference CLI-IMR may for instance be conveyed to the UE via riog 2 (iV)l bits signaling or a predefined and fixed rule may be used to determine the reference CLI-IMR, e.g. the first CLI-IMR within the set.
  • Another aspect of the present disclosure relates to aperiodic reporting of CLI measurements.
  • the UE is instructed to transmit a CLI
  • the UE is also given a UL resource allocation by the DCI whereon the CLI measurement report is to be transmitted.
  • a UL resource allocation may typically comprise the scheduling of a PUSCH but may also comprise the scheduling of a PUCCH.
  • the CLI report may then be multiplexed in UCI potentially together with other UCI content such as Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK), Scheduling Request (SR), or other CSI reports and transmitted on the PUSCH or PUCCH.
  • HARQ Hybrid Automatic Repeat Request
  • ACK Hybrid Automatic Repeat Request
  • SR Scheduling Request
  • the UE then either collects a previously measured CLI measurement stored in memory (for instance based on periodic or semi-persistent CLI-IMR) or performs a new CLI measurement based on aperiodic CLI-IMR.
  • aperiodic CLI-IMR the triggering of the aperiodic CLI-IMR may be indicated by the triggered trigger state (and hence indirectly via the codepoint of the CSI request field).
  • the time and/or frequency position of the aperiodic CLI-IMR may be inferred from the triggered trigger state and may for instance be encoded in the trigger state itself or be associated with the CLI-IMR set or even the CLI-IMR itself.
  • multiple (independent) CLI measurement reports are triggered with the same trigger state, where each triggered CLI measurement report may be associated with as separate CSI report config and/or CLI-IMR set.
  • Figure 10 illustrates the operation of a UE (e.g., a wireless device 512) and a NN (e.g., a base station 502) in accordance with at least some embodiments of Aspect #5.
  • the NN is a base station 502
  • the UE is a wireless device 512; however, the present disclosure is not limited thereto.
  • the base station 502 sends, to the wireless device 512, a CLI-IMR configuration that includes information that defines one or more CLI-IMRs (step 1000).
  • the base station 502 also sends one or more DCI triggering aperiodic reporting of CLI, as described above (step 1002).
  • the wireless device 512 obtains CLI measurement(s) in accordance with the CLI-IMR configuration (step 1004). As discussed above, the wireless device 512 may obtain previous CLI measurements stored in memory and/or perform new CLI measurements on the configured CLI-IMR(s). The wireless device 512 reports the CLI measurement(s) or information derived therefrom to the base station 502 on the allocated UL resource, as described above (step 1006).
  • a UE may be configured with a periodic CLI measurement report which is carried on the PUCCH with a certain periodicity and timing offset.
  • a UE may also be configured with semi-persistent CLI reporting on PUSCH, where periodic PUSCH resources are allocated for CLI reporting.
  • the configuration may be done by RRC and the transmission may be activated/deactivated by DCI.
  • Semi-persistent CLI reporting would in a reasonable implementation be used only for periodic or semi-persistent CLI-IMR (not aperiodic), and periodic reporting only for periodic CLI-IMR. As mentioned in a previous section, aperiodic reporting can be used for any CLI-IMR time domain behavior. Technically, it is possible to use any combination of scheduling for the CLI reporting and CLI-IMR.
  • the CLI-IMR configuration comprises an indication on if measurement restriction is to be applied or not.
  • a measurement restriction may be defined such that the UE is not allowed to perform averaging across serval occupancies of the CLI-IMR in the time domain.
  • a periodic CLI-IMR may be configured and the NN wants to evaluate different UE interference hypotheses on the same CLI-IMR in the different time instances and hence wants to make sure that the UE only performs single-shot measurement so as to not average the different interference hypotheses together.
  • the measurement restriction may also be defined such that the UE is allowed to average blocks of N adjacent CLI- IMR occasions in the time domain, in order to attain a better estimate than single-shot measurement but still allow the NN to Time Domain Multiplex (TDM) different UE interference hypotheses on the same CLI-IMR.
  • TDM Time Domain Multiplex
  • the measurement restriction is defined such that the UE can average the CLI-IMRs that will not be affected by CLI (provided as a CLI-free reference), but it can only perform single-slot measurement on the CLI-IMRs that may potentially affected by CLI to assist the NN to understand more about the CLI situation in different time instances (e.g., flexible slots).
  • FIG 11 is a schematic block diagram of a radio access node 1100 according to some embodiments of the present disclosure.
  • the radio access node 1100 may be, for example, a base station 502 or 506.
  • the radio access node 1100 includes a control system 1102 that includes one or more processors 1104 (e.g., Central Processing Units (CPUs), Application Specific Integrated Circuits (ASICs), Field
  • the one or more processors 1104 are also referred to herein as processing circuitry.
  • the radio access node 1100 includes one or more radio units 1110 that each includes one or more transmitters 1112 and one or more receivers 1114 coupled to one or more antennas 1116.
  • the radio units 1110 may be referred to or be part of radio interface circuitry.
  • the radio unit(s) 1110 is external to the control system 1102 and connected to the control system 1102 via, e.g., a wired connection (e.g., an optical cable).
  • the radio unit(s) 1110 and potentially the antenna(s) 1116 are integrated together with the control system 1102.
  • the one or more processors 1104 operate to provide one or more functions of a radio access node 1100 as described herein (e.g., one or more functions of a network node or base station 502 as described herein, e.g., with respect to Figures 6-10 and Aspects #1 through #7 above).
  • the function(s) are implemented in software that is stored, e.g., in the memory 1106 and executed by the one or more processors 1104.
  • Figure 12 is a schematic block diagram that illustrates a virtualized
  • radio access node 1100 according to some embodiments of the present disclosure. This discussion is equally applicable to other types of network nodes. Further, other types of network nodes may have similar virtualized
  • a "virtualized" radio access node is an implementation of the radio access node 1100 in which at least a portion of the functionality of the radio access node 1100 is implemented as a virtual component(s) (e.g., via a virtual machine(s) executing on a physical processing node(s) in a network(s)).
  • the radio access node 1100 includes the control system 1102 that includes the one or more processors 1104 (e.g., CPUs, ASICs, FPGAs, and/or the like), the memory 1106, and the network interface 1108 and the one or more radio units 1110 that each includes the one or more transmitters 1112 and the one or more receivers 1114 coupled to the one or more antennas 1116, as described above.
  • the control system 1102 is connected to the radio unit(s) 1110 via, for example, an optical cable or the like.
  • the control system 1102 is connected to one or more processing nodes 1200 coupled to or included as part of a network(s) 1202 via the network interface 1108.
  • Each processing node 1200 includes one or more processors 1204 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 1206, and a network interface 1208. [0119] In this example, functions 1210 of the radio access node 1100 described herein are implemented at the one or more processing nodes 1200 or distributed across the control system 1102 and the one or more processing nodes 1200 in any desired manner.
  • processors 1204 e.g., CPUs, ASICs, FPGAs, and/or the like
  • some or all of the functions 1210 of the radio access node 1100 described herein are implemented as virtual components executed by one or more virtual machines implemented in a virtual environment(s) hosted by the radio access node 1100 described herein.
  • processing node(s) 1200 As will be appreciated by one of ordinary skill in the art, additional signaling or communication between the processing node(s) 1200 and the control system 1102 is used in order to carry out at least some of the desired functions 1210. Notably, in some embodiments, the control system 1102 may not be included, in which case the radio unit(s) 1110 communicate directly with the processing node(s) 1200 via an appropriate network interface(s).
  • a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of radio access node 1100 or a node (e.g., a processing node 1200) implementing one or more of the functions 1210 of the radio access node 1100 in a virtual environment according to any of the embodiments described herein (e.g., one or more functions of a network node or base station 502 as described herein, e.g., with respect to Figures 6-10 and Aspects #1 through #7 above) is provided.
  • a carrier comprising the aforementioned computer program product is provided.
  • the carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
  • FIG 13 is a schematic block diagram of the radio access node 1100 according to some other embodiments of the present disclosure.
  • the radio access node 1100 includes one or more modules 1300, each of which is implemented in software.
  • the module(s) 1300 provide the functionality of the radio access node 1100 described herein (e.g., one or more functions of a network node or base station 502 as described herein, e.g., with respect to Figures 6-10 and Aspects #1 through #7 above).
  • This discussion is equally applicable to the processing node 1200 of Figure 12 where the modules 1300 may be implemented at one of the processing nodes 1200 or distributed across multiple processing nodes 1200 and/or distributed across the processing node(s) 1200 and the control system 1102.
  • FIG 14 is a schematic block diagram of a UE 1400 according to some embodiments of the present disclosure.
  • the UE 1400 includes one or more processors 1402 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 1404, and one or more transceivers 1406 each including one or more transmitters 1408 and one or more receivers 1410 coupled to one or more antennas 1412.
  • the transceiver(s) 1406 includes radio-front end circuitry connected to the antenna(s) 1412 that is configured to condition signals communicated between the antenna(s) 1412 and the processor(s) 1402, as will be appreciated by on of ordinary skill in the art.
  • the processors 1402 are also referred to herein as processing circuitry.
  • the transceivers 1406 are also referred to herein as radio circuitry.
  • the functionality of the UE 1400 described above e.g., one or more functions of a UE or wireless device 512 as described herein, e.g., with respect to Figures 6-10 and Aspects #1 through #7 above
  • the UE 1400 may include additional components not illustrated in Figure 14 such as, e.g., one or more user interface components (e.g., an input/output interface including a display, buttons, a touch screen, a microphone, a speaker(s), and/or the like and/or any other components for allowing input of information into the UE 1400 and/or allowing output of information from the UE 1400), a power supply (e.g., a battery and associated power circuitry), etc.
  • user interface components e.g., an input/output interface including a display, buttons, a touch screen, a microphone, a speaker(s), and/or the like and/or any other components for allowing input of information into the UE 1400 and/or allowing output of information from the UE 1400
  • a power supply e.g., a battery and associated power circuitry
  • a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of the UE 1400 according to any of the embodiments described herein is provided.
  • a carrier comprising the aforementioned computer program product is provided.
  • the carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
  • FIG 15 is a schematic block diagram of the UE 1400 according to some other embodiments of the present disclosure.
  • the UE 1400 includes one or more modules 1500, each of which is implemented in software.
  • the module(s) 1500 provide the functionality of the UE 1400 described herein (e.g., one or more functions of a UE or wireless device 512 as described herein, e.g., with respect to Figures 6-10 and Aspects #1 through #7 above).
  • any appropriate steps, methods, features, functions, or benefits disclosed herein may be performed through one or more functional units or modules of one or more virtual apparatuses.
  • Each virtual apparatus may comprise a number of these functional units.
  • These functional units may be implemented via processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include Digital Signal Processor (DSPs), special-purpose digital logic, and the like.
  • the processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as Read Only Memory (ROM), Random Access Memory (RAM), cache memory, flash memory devices, optical storage devices, etc.
  • Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein.
  • the processing circuitry may be used to cause the respective functional unit to perform corresponding functions according one or more embodiments of the present disclosure.
  • Embodiment 1 A method performed by a wireless device for performing Cross-Link Interference, CLI, measurements, the method comprising: receiving (600), via one or more Radio Resource Control, RRC, messages, information that configures a CLI measurement to be performed by the wireless device; performing (602) the CLI measurement in accordance with the received information; and reporting (604) the CLI measurement to a network node.
  • RRC Radio Resource Control
  • Embodiment 2 The method of embodiment 1 wherein the information comprises information that indicates frequency resources on which the wireless device is to perform the CLI measurement and/or time resources on which the wireless device is to perform the CLI measurement.
  • Embodiment 3 The method of embodiment 1 wherein the information comprises a measurement object comprising information that indicates time and frequency resources on which the wireless device is to perform the CLI measurement.
  • Embodiment 4 The method of embodiment 3 wherein the measurement object further comprises information that indicates a carrier frequency on which the wireless device is to perform the CLI measurement.
  • Embodiment 5 The method of embodiment 3 or 4 wherein the CLI measurement is to be performed by the wireless device on a reference signal, and the measurement object further comprises information that identifies the reference signal.
  • Embodiment 6 The method of any one of embodiments 1 to 5 wherein the wireless device is further configured to process the CLI measurement before reporting the (processed) CLI measurement.
  • Embodiment 7 The method of any one of embodiments 1 to 6 wherein the information further comprises a report configuration that indicates how the CLI measurement is to be reported by the wireless device.
  • Embodiment 8 The method of any one of embodiments 1 to 7 wherein the information further comprises a quantity configuration for the CLI measurement.
  • Embodiment 9 The method of any one of embodiments 1 to 8 wherein the information further comprises information that configures one or more measurement gaps during which the wireless device can perform the CLI measurement.
  • Embodiment 10 A wireless device for performing Cross-Link Interference, CLI, measurements, the wireless device adapted to perform the method of any one of embodiments 1 to 9.
  • Embodiment 11 A method performed by a network node for configuring a wireless device to perform Cross-Link Interference, CLI, measurements, the method comprising: transmitting (600), to the wireless device via one or more Radio Resource Control, RRC, messages, information that configures a CLI measurement to be performed by the wireless device.
  • RRC Radio Resource Control
  • Embodiment 12 The method of embodiment 11 wherein the information comprises information that indicates frequency resources on which the wireless device is to perform the CLI measurement and/or time resources on which the wireless device is to perform the CLI measurement.
  • Embodiment 13 The method of embodiment 11 wherein the information comprises a measurement object comprising information that indicates time and frequency resources on which the wireless device is to perform the CLI measurement.
  • Embodiment 14 The method of embodiment 13 wherein the measurement object further comprises information that indicates a carrier frequency on which the wireless device is to perform the CLI measurement.
  • Embodiment 15 The method of embodiment 13 or 14 wherein the CLI measurement is to be performed by the wireless device on a reference signal, and the measurement object further comprises information that identifies the reference signal.
  • Embodiment 16 The method of any one of embodiments 11 to 15 further comprising configuring the wireless device to process the CLI measurement before reporting the (processed) CLI measurement.
  • Embodiment 17 The method of any one of embodiments 11 to 16 wherein the information further comprises a report configuration that indicates how the CLI measurement is to be reported by the wireless device.
  • Embodiment 18 The method of any one of embodiments 11 to 17 wherein the information further comprises a quantity configuration for the CLI measurement.
  • Embodiment 19 The method of any one of embodiments 11 to 18 wherein the information further comprises information that configures one or more
  • Embodiment 20 A network node for configuring a wireless device to perform Cross-Link Interference, CLI, measurements, the network adapted to perform the method of any one of embodiments 11 to 19.
  • Embodiment 21 A method performed by a wireless device for performing Cross-Link Interference, CLI, measurements, the method comprising: receiving (700, 800, 900, 1000), from a network node, information that defines a CLI Interference Measurement Resource, CLI-IMR, wherein the CLI-IMR is physical resources on which the wireless device is to perform CLI measurement; obtaining (702, 804, 904, 1004) a CLI measurement on the configured CLI-IMR; and reporting (704, 806, 906, 1006) the CLI measurement to the network node.
  • CLI-IMR CLI Interference Measurement Resource
  • Embodiment 22 The method of embodiment 21 wherein obtaining the CLI measurement comprises performing the CLI measurement on the configured CLI-IMR.
  • Embodiment 23 The method of embodiment 21 or 22 wherein the information that defines the CLI-IMR comprises information that indicates: frequency domain resources (e.g., subcarriers) on which the wireless device is to perform CLI measurement; and/or time domain resources (e.g., Orthogonal Frequency Division Multiplexing, OFDM, symbols) on which the wireless device is to perform CLI
  • frequency domain resources e.g., subcarriers
  • time domain resources e.g., Orthogonal Frequency Division Multiplexing, OFDM, symbols
  • Embodiment 24 The method of any one of embodiments 21 to 23 wherein the information that defines the CLI-IMR comprises information that defines a time domain behavior of the CLI-IMR.
  • Embodiment 25 The method of any one of embodiments 21 to 24 wherein the information that defines the CLI-IMR comprises information that defines a periodicity of the CLI-IMR.
  • Embodiment 26 The method of any one of embodiments 21 to 25 wherein the CLI measurement is a Reference Signal Received Power, RSRP, based
  • the information that defines the CLI-IMR comprises an Sounding Reference Signal, SRS, resource configuration, the SRS resource configuration comprising a number of ports, resource mapping in time, frequency domain position, and/or sequence type.
  • Embodiment 27 The method of any one of embodiments 21 to 25 wherein the CLI measurement is an Received Signal Strength Indicator, RSSI, based
  • the information that defines the CLI-IMR comprises information that indicates a plurality of physical resources on which the wireless device is to perform CLI measurement.
  • Embodiment 28 The method of any one of embodiments 21 to 27 wherein the information that defines the CLI-IMR comprises an assumption or indication of a wireless device receive beam setting to be applied when performing the CLI
  • Embodiment 29 The method of any one of embodiments 21 to 28 wherein receiving the information that defines the CLI-IMR comprises receiving information that defines a plurality of CLI-IMRs including the CLI-IMR.
  • Embodiment 30 The method of embodiment 29 further comprising:
  • Embodiment 31 The method of any one of embodiments 21 to 30 further comprising receiving (902) a CLI measurement report configuration from the network node, wherein reporting the CLI-IMR measurement comprises reporting (906) the CLI- IMR measurement in accordance with the CLI measurement report configuration.
  • Embodiment 32 The method of any one of embodiments 21 to 31 wherein the CLI measurement is a RSRP or RSSI value quantized to a number of bits.
  • Embodiment 33 The method of any one of embodiments 21 to 32 wherein reporting the CLI measurement comprises reporting the CLI measurement if the CLI measurement satisfies one or more criteria for reporting (e.g., defined in the CLI measurement report configuration).
  • Embodiment 34 The method of any one of embodiments 21 to 33 further comprising: receiving (1002), from the network node, downlink control information that triggers aperiodic CLI reporting, the downlink control information comprising an uplink resource allocation for an uplink resource on which the wireless device is to transmit a CLI measurement report.
  • Embodiment 35 The method of embodiment 34 wherein obtaining the CLI measurement comprises obtaining the CLI measurement from memory or performing the CLI measurement.
  • Embodiment 36 The method of any one of embodiments 21 to 33 wherein the wireless device is configured with periodic or semi-persistent reporting of CLI measurements, and reporting the CLI measurement comprises reporting the CLI measurement in accordance with the configuration of the periodic or semi-persistent reporting.
  • Embodiment 37 The method of any one of embodiments 21 to 36 wherein the information that defines the CLI-IMR comprises an indication of whether
  • Embodiment 38 A wireless device for performing Cross-Link Interference, CLI, measurements, the wireless device adapted to perform the method of any one of embodiments 21 to 37.
  • Embodiment 39 A method performed by a network node (e.g., a base station) for obtaining Cross-Link Interference, CLI, measurements, the method comprising: transmitting (700, 800, 900, 1000) information that defines a CLI
  • CLI-IMR Interference Measurement Resource
  • the CLI-IMR is physical resources on which a wireless device is to perform CLI measurement; and receiving, from the wireless device, a report comprising a CLI measurement for the CLI-IMR.
  • Embodiment 40 The method of embodiment 39 wherein the information that defines the CLI-IMR comprises information that indicates: frequency domain resources (e.g., subcarriers) on which the wireless device is to perform CLI measurement; and/or time domain resources (e.g., Orthogonal Frequency Division Multiplexing, OFDM, symbols) on which the wireless device is to perform CLI measurement.
  • frequency domain resources e.g., subcarriers
  • time domain resources e.g., Orthogonal Frequency Division Multiplexing, OFDM, symbols
  • Embodiment 41 The method of embodiment 39 or 40 wherein the
  • information that defines the CLI-IMR comprises information that defines a time domain behavior of the CLI-IMR.
  • Embodiment 42 The method of any one of embodiments 39 to 41 wherein the information that defines the CLI-IMR comprises information that defines a
  • Embodiment 43 The method of any one of embodiments 39 to 42 wherein the CLI measurement is a Reference Signal Received Power, RSRP, based
  • the information that defines the CLI-IMR comprises a Sounding Reference Signal, SRS, resource configuration, the SRS resource configuration
  • Embodiment 44 The method of any one of embodiments 39 to 42 wherein the CLI measurement is a Received Signal Strength Indicator, RSSI, based
  • the information that defines the CLI-IMR comprises information that indicates a plurality of physical resources on which the wireless device is to perform CLI measurement.
  • Embodiment 45 The method of any one of embodiments 39 to 44 wherein the information that defines the CLI-IMR comprises an assumption or indication of a wireless device receive beam setting to be applied when performing the CLI
  • Embodiment 46 The method of any one of embodiments 39 to 45 wherein transmitting the information that defines the CLI-IMR comprises transmitting
  • Embodiment 47 The method of embodiment 46 further comprising:
  • Embodiment 48 The method of any one of embodiments 39 to 47 further comprising transmitting (902) a CLI measurement report configuration, wherein receiving the report comprises receiving the report in accordance with the CLI measurement report configuration.
  • Embodiment 49 The method of any one of embodiments 39 to 48 wherein the CLI measurement is a RSRP or RSSI value quantized to a number of bits.
  • Embodiment 50 The method of any one of embodiments 39 to 49 further comprising: transmitting (1002), to the wireless device, downlink control information that triggers aperiodic CLI reporting, the downlink control information comprising an uplink resource allocation for an uplink resource on which the wireless device is to transmit the report.
  • Embodiment 51 The method of any one of embodiments 39 to 49 further comprising configuring the wireless device with periodic or semi-persistent reporting of CLI measurements, and receiving the report comprises receiving the report in
  • Embodiment 52 The method of any one of embodiments 39 to 51 wherein the information that defines the CLI-IMR comprises an indication of whether
  • Embodiment 53 A method performed by a network node (e.g., a base station) for obtaining Cross-Link Interference, CLI, measurements, the network node adapted to perform the method of any one of embodiments 39 to 52.
  • a network node e.g., a base station
  • CLI Cross-Link Interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne des systèmes et des procédés relatifs à un mesurage et une communication de rapport de brouillage inter liaison. Dans certains modes de réalisation, un procédé exécuté par un dispositif sans fil pour exécuter des mesurages de CLI consiste à recevoir, via un ou plusieurs messages de gestion des ressources radio (RRC), des informations qui configurent un mesurage de CLI devant être exécuté par le dispositif sans fil, le mesurage de CLI étant un mesurage de CLI au niveau du dispositif sans fil qui résulte de transmissions de liaison montante à partir d'un ou plusieurs autres dispositifs sans fil. Le procédé consiste en outre à exécuter le mesurage de CLI d'après les informations reçues, et à communiquer le rapport de mesurage de CLI à un nœud de réseau. Des modes de réalisation correspondants concernent un dispositif sans fil.
PCT/IB2020/050157 2019-01-11 2020-01-09 Configuration et communication de rapport de mesurage de cli WO2020144624A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201962791429P 2019-01-11 2019-01-11
US201962791409P 2019-01-11 2019-01-11
US62/791,409 2019-01-11
US62/791,429 2019-01-11

Publications (1)

Publication Number Publication Date
WO2020144624A1 true WO2020144624A1 (fr) 2020-07-16

Family

ID=69326570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/050157 WO2020144624A1 (fr) 2019-01-11 2020-01-09 Configuration et communication de rapport de mesurage de cli

Country Status (1)

Country Link
WO (1) WO2020144624A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022020834A1 (fr) * 2020-07-20 2022-01-27 Qualcomm Incorporated Mesure et rapport d'interférence de liaison croisée et d'auto-brouillage simultanés
WO2022027164A1 (fr) * 2020-08-03 2022-02-10 Qualcomm Incorporated Configuration de ressources pour mesure d'interférence de liaison croisée réciproque
US20220053353A1 (en) * 2020-08-14 2022-02-17 Samsung Electronics Co., Ltd. Method and apparatus for measurement and reporting for multi-beam operations
WO2022055816A1 (fr) * 2020-09-10 2022-03-17 Qualcomm Incorporated Activation par mac-ce de l'établissement de rapports de cli
WO2022081258A1 (fr) * 2020-10-16 2022-04-21 Qualcomm Incorporated Rapport de mesure avec des informations de mesure de multiples occasions de mesure de signal de référence de positionnement associées à un point de transmission-réception
US20220140959A1 (en) * 2019-02-14 2022-05-05 Nokia Technologies Oy Cli measurement reporting in telecommunication systems
US11411664B2 (en) * 2019-02-14 2022-08-09 Samsung Electronics Co., Ltd. Method, terminal device, base station, computer readable medium for measuring cross-link interference, and methods and apparatuses for random access preamble allocation, determination, and data transmission
WO2022252210A1 (fr) * 2021-06-04 2022-12-08 Qualcomm Incorporated Techniques de priorisation de mesure d'interférence entre liaisons
WO2023272717A1 (fr) * 2021-07-02 2023-01-05 Qualcomm Incorporated Configuration et rapport d'indicateur d'intensité de signal reçu
WO2023064853A1 (fr) * 2021-10-13 2023-04-20 Qualcomm Incorporated Mesure et rapport d'indicateur d'intensité de signal reçu sur une couche spécifique au faisceau
EP4197265A1 (fr) * 2020-08-14 2023-06-21 QUALCOMM Incorporated Procédure de mesure de temps aller-retour sur des ressources de mesure d'interférences inter-liaisons réciproques
WO2023173316A1 (fr) * 2022-03-16 2023-09-21 Qualcomm Incorporated Rapport d'interférence de liaison croisée (cli) d'équipement utilisateur (ue) différentiel
WO2023211846A1 (fr) * 2022-04-28 2023-11-02 Qualcomm Incorporated Rapport d'interférence de liaison croisée sur des canaux de liaison montante physiques
WO2023212080A1 (fr) * 2022-04-26 2023-11-02 Intel Corporation Procédés et agencements d'atténuation d'interférence de liaison croisée
WO2023209543A1 (fr) * 2022-04-27 2023-11-02 Lenovo (Singapore) Pte. Ltd. Mesure et rapport dynamiques d'interférences entre liaisons
WO2023235654A1 (fr) * 2022-06-03 2023-12-07 Qualcomm Incorporated Améliorations de rapport de faisceau pour prédiction de faisceau
WO2024029157A1 (fr) * 2022-08-03 2024-02-08 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Terminal, station de base et procédé de communication
WO2024037511A1 (fr) * 2022-08-19 2024-02-22 维沃移动通信有限公司 Procédé de traitement d'interférences entre liaisons, dispositif et support de stockage lisible

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180323887A1 (en) * 2017-05-05 2018-11-08 Qualcomm Incorporated Interference management based on reference signals in wireless communications
US20180323916A1 (en) * 2017-05-05 2018-11-08 Mediatek Inc. Method And Apparatus For Cross-Link Interference Measurements In Mobile Communications
WO2018228421A1 (fr) * 2017-06-14 2018-12-20 中国移动通信有限公司研究院 Procédé de mesure de brouillage entre liaisons entre des terminaux d'utilisateur, terminal d'utilisateur et point de réception de transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180323887A1 (en) * 2017-05-05 2018-11-08 Qualcomm Incorporated Interference management based on reference signals in wireless communications
US20180323916A1 (en) * 2017-05-05 2018-11-08 Mediatek Inc. Method And Apparatus For Cross-Link Interference Measurements In Mobile Communications
WO2018228421A1 (fr) * 2017-06-14 2018-12-20 中国移动通信有限公司研究院 Procédé de mesure de brouillage entre liaisons entre des terminaux d'utilisateur, terminal d'utilisateur et point de réception de transmission

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MEDIATEK INC: "Cross-link interference management", vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, 12 September 2017 (2017-09-12), XP051329838, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_AH/NR_AH_1709/Docs/> [retrieved on 20170912] *
NOKIA ET AL: "Dynamic TDD Interference Mitigation Concepts in NR", vol. RAN WG1, no. Athens, Greece; 20170213 - 20170217, 6 February 2017 (2017-02-06), XP051220369, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_88/Docs/> [retrieved on 20170206] *
VIVO: "Details of UE-UE CLI measurements", vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, 17 September 2017 (2017-09-17), XP051339115, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/> [retrieved on 20170917] *
ZTE: "UE-to-UE measurement as an enabler for CLI mitigation schemes", vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, 17 September 2017 (2017-09-17), XP051339030, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Meetings_3GPP_SYNC/RAN1/Docs/> [retrieved on 20170917] *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220140959A1 (en) * 2019-02-14 2022-05-05 Nokia Technologies Oy Cli measurement reporting in telecommunication systems
US11411664B2 (en) * 2019-02-14 2022-08-09 Samsung Electronics Co., Ltd. Method, terminal device, base station, computer readable medium for measuring cross-link interference, and methods and apparatuses for random access preamble allocation, determination, and data transmission
WO2022020834A1 (fr) * 2020-07-20 2022-01-27 Qualcomm Incorporated Mesure et rapport d'interférence de liaison croisée et d'auto-brouillage simultanés
WO2022027164A1 (fr) * 2020-08-03 2022-02-10 Qualcomm Incorporated Configuration de ressources pour mesure d'interférence de liaison croisée réciproque
EP4197265A1 (fr) * 2020-08-14 2023-06-21 QUALCOMM Incorporated Procédure de mesure de temps aller-retour sur des ressources de mesure d'interférences inter-liaisons réciproques
US20220053353A1 (en) * 2020-08-14 2022-02-17 Samsung Electronics Co., Ltd. Method and apparatus for measurement and reporting for multi-beam operations
WO2022055816A1 (fr) * 2020-09-10 2022-03-17 Qualcomm Incorporated Activation par mac-ce de l'établissement de rapports de cli
WO2022081258A1 (fr) * 2020-10-16 2022-04-21 Qualcomm Incorporated Rapport de mesure avec des informations de mesure de multiples occasions de mesure de signal de référence de positionnement associées à un point de transmission-réception
WO2022252210A1 (fr) * 2021-06-04 2022-12-08 Qualcomm Incorporated Techniques de priorisation de mesure d'interférence entre liaisons
WO2023272717A1 (fr) * 2021-07-02 2023-01-05 Qualcomm Incorporated Configuration et rapport d'indicateur d'intensité de signal reçu
WO2023064853A1 (fr) * 2021-10-13 2023-04-20 Qualcomm Incorporated Mesure et rapport d'indicateur d'intensité de signal reçu sur une couche spécifique au faisceau
WO2023173316A1 (fr) * 2022-03-16 2023-09-21 Qualcomm Incorporated Rapport d'interférence de liaison croisée (cli) d'équipement utilisateur (ue) différentiel
WO2023212080A1 (fr) * 2022-04-26 2023-11-02 Intel Corporation Procédés et agencements d'atténuation d'interférence de liaison croisée
WO2023209543A1 (fr) * 2022-04-27 2023-11-02 Lenovo (Singapore) Pte. Ltd. Mesure et rapport dynamiques d'interférences entre liaisons
WO2023211846A1 (fr) * 2022-04-28 2023-11-02 Qualcomm Incorporated Rapport d'interférence de liaison croisée sur des canaux de liaison montante physiques
WO2023235654A1 (fr) * 2022-06-03 2023-12-07 Qualcomm Incorporated Améliorations de rapport de faisceau pour prédiction de faisceau
WO2024029157A1 (fr) * 2022-08-03 2024-02-08 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ Terminal, station de base et procédé de communication
WO2024037511A1 (fr) * 2022-08-19 2024-02-22 维沃移动通信有限公司 Procédé de traitement d'interférences entre liaisons, dispositif et support de stockage lisible

Similar Documents

Publication Publication Date Title
WO2020144624A1 (fr) Configuration et communication de rapport de mesurage de cli
US11284355B2 (en) Interference measurement method and related device
US11297521B2 (en) Determining and sending a measurement result performed per beam
US9509460B2 (en) Apparatus for receiving downlink signal in a wireless communication system and method thereof
US9807632B2 (en) Method and apparatus for acquiring system information in wireless communication system
US9661516B2 (en) Method and apparatus for performing measurement in wireless communication system
US9426801B2 (en) Method and apparatus for transceiving control signal
KR101915133B1 (ko) 무선 접속 시스템에서 채널 상태 정보 측정 방법 및 이를 위한 장치
US9282558B2 (en) Method for transmitting and receiving signal using time division duplex mode in wireless access system, and apparatus therefor
US9635618B2 (en) Method for setting downlink transmission power in wireless access system, and apparatus therefor
US20200344834A1 (en) User terminal and radio communication method
US20170135039A1 (en) User terminal, base station and communication method
AU2010275184A1 (en) Apparatus and method for transmitting channel state information in a wireless communication system
US20170086175A1 (en) Radio base station, user terminal and radio communication method
US20150036524A1 (en) Method and apparatus for measuring neighbor cell in wireless communication system
CN105580415A (zh) 无线基站、用户终端以及通信控制方法
WO2020170218A1 (fr) Procédés de signalement flexible de mesures de cli
US20220030456A1 (en) First Network Node, First UE and Methods Performed Therein for Handling Communication
KR20170123577A (ko) 다양한 빔 관리 방법을 적용하는 이동통신 시스템의 신호 송수신 방법 및 그 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20702354

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20702354

Country of ref document: EP

Kind code of ref document: A1