WO2023206051A1 - Signal de référence d'informations d'état de canal apériodique pour interférence entre liaisons dans des symboles de garde ou à proximité de ces derniers - Google Patents

Signal de référence d'informations d'état de canal apériodique pour interférence entre liaisons dans des symboles de garde ou à proximité de ces derniers Download PDF

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Publication number
WO2023206051A1
WO2023206051A1 PCT/CN2022/089166 CN2022089166W WO2023206051A1 WO 2023206051 A1 WO2023206051 A1 WO 2023206051A1 CN 2022089166 W CN2022089166 W CN 2022089166W WO 2023206051 A1 WO2023206051 A1 WO 2023206051A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
state information
channel state
information reference
measurement
Prior art date
Application number
PCT/CN2022/089166
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English (en)
Inventor
Jie Gao
Original Assignee
Nokia Shanghai Bell Co., Ltd.
Nokia Solutions And Networks Oy
Nokia Technologies Oy
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Application filed by Nokia Shanghai Bell Co., Ltd., Nokia Solutions And Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co., Ltd.
Priority to PCT/CN2022/089166 priority Critical patent/WO2023206051A1/fr
Publication of WO2023206051A1 publication Critical patent/WO2023206051A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Definitions

  • Some example embodiments may generally relate to communications including mobile or wireless telecommunication systems, such as Long Term Evolution (LTE) or fifth generation (5G) radio access technology or new radio (NR) access technology, or other communications systems.
  • LTE Long Term Evolution
  • 5G fifth generation
  • NR new radio
  • certain example embodiments may generally relate to systems and/or methods for providing aperiodic channel state information reference signal for cross-link interference in or near guard symbols in full duplex mode, time division duplex mode, or evolution of duplex operation.
  • Examples of mobile or wireless telecommunication systems may include the Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN) , Long Term Evolution (LTE) Evolved UTRAN (E-UTRAN) , LTE-Advanced (LTE-A) , MulteFire, LTE-APro, and/or fifth generation (5G) radio access technology or new radio (NR) access technology.
  • UMTS Universal Mobile Telecommunications System
  • UTRAN Long Term Evolution
  • E-UTRAN Long Term Evolution
  • LTE-A LTE-Advanced
  • MulteFire LTE-APro
  • 5G wireless systems refer to the next generation (NG) of radio systems and network architecture.
  • NG next generation
  • a 5G system is mostly built on a 5G new radio (NR) , but a 5G (or NG) network can also build on the E-UTRA radio.
  • NR provides bitrates on the order of 10-20 Gbit/sor higher, and can support at least service categories such as enhanced mobile broadband (eMBB) and ultra-reliable low-latency-communication (URLLC) as well as massive machine type communication (mMTC) .
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable low-latency-communication
  • mMTC massive machine type communication
  • NR is expected to deliver extreme broadband and ultra-robust, low latency connectivity and massive networking to support the Internet of Things (IoT) .
  • IoT Internet of Things
  • M2M machine-to-machine
  • the next generation radio access network represents the RAN for 5G, which can provide both NR and LTE (and LTE-Advanced) radio accesses.
  • the nodes that can provide radio access functionality to a user equipment i.e., similar to the Node B, NB, in UTRAN or the evolved NB, eNB, in LTE
  • gNB next-generation NB
  • NG-eNB next-generation eNB
  • An embodiment may be directed to an apparatus.
  • the apparatus can include at least one processor and at least one memory including computer program code.
  • the at least one memory and the computer program code can be configured to, with the at least one processor, cause the apparatus at least to configure a user equipment channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the at least one memory and the computer program code can also be configured to, with the at least one processor, cause the apparatus at least to schedule data to the user equipment with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • the at least one memory and the computer program code can further be configured to, with the at least one processor, cause the apparatus at least to receive at least one measurement of the aperiodic channel state information reference signal from the user equipment.
  • An embodiment may be directed to an apparatus.
  • the at least one memory and the computer program code can be configured to, with the at least one processor, cause the apparatus at least to receive, at a user equipment from a network element, a configuration for channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the at least one memory and the computer program code can also be configured to, with the at least one processor, cause the apparatus at least to receive data at the user equipment from the network element together with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • the at least one memory and the computer program code can further be configured to, with the at least one processor, cause the apparatus at least to obtain at least one measurement of the aperiodic channel state information reference signal.
  • the at least one memory and the computer program code can additionally be configured to, with the at least one processor, cause the apparatus at least to provide the at least one measurement to the network element.
  • An embodiment may be directed to a method.
  • the method can include configuring a user equipment channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the method can also include scheduling data to the user equipment with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • the method can further include receiving at least one measurement of the aperiodic channel state information reference signal from the user equipment.
  • An embodiment may be directed to a method.
  • the method can include receiving, at a user equipment from a network element, a configuration for channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the method can also include receiving data at the user equipment from the network element together with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • the method can further include obtaining at least one measurement of the aperiodic channel state information reference signal.
  • the method can additionally include providing the at least one measurement to the network element.
  • An embodiment may be directed to an apparatus.
  • the apparatus can include means for configuring a user equipment channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the apparatus can also include means for scheduling data to the user equipment with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • the apparatus can further include means for receiving at least one measurement of the aperiodic channel state information reference signal from the user equipment.
  • An embodiment may be directed to an apparatus.
  • the apparatus can include means for receiving, at a user equipment from a network element, a configuration for channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the apparatus can also include means for receiving data at the user equipment from the network element together with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • the apparatus can further include means for obtaining at least one measurement of the aperiodic channel state information reference signal.
  • the apparatus can additionally include means for providing the at least one measurement to the network element.
  • FIG. 1 illustrates a high-level sketch of flexible frequency division duplex carrier configuration for an unpaired band
  • FIG. 2 illustrates flexible frequency division duplex and frequency division examples
  • FIG. 3 illustrates time division duplex frame structure examples
  • FIG. 4 illustrates full flexible duplex slot examples
  • FIG. 5 illustrates a flexible full duplex slot with channel state information reference signal for cross-link interference
  • FIG. 6 illustrates channel state information reference signal for cross-link interference with downlink resource allocation type 0 physical downlink shared channel schedule in guard period function examples
  • FIG. 7 illustrates an example of a four-symbol guard period
  • FIG. 8 illustrates half guard symbols that can be used for channel state information reference signal for cross-link interference measurements, according to certain embodiments
  • FIG. 9 illustrates cells having different slot formats, according to certain embodiments.
  • FIG. 10 illustrates various kinds of channel state information reference signal for cross-link interference measurements in guard period, according to certain embodiments
  • FIG. 11 illustrates further kinds of channel state information reference signal for cross-link interference measurements near to guard period, according to certain embodiments
  • FIG. 12 illustrates a channel state information measurement configuration, according to certain embodiments.
  • FIG. 13 illustrates a method according to certain embodiments
  • FIG. 14 illustrates a method according to certain embodiments.
  • FIG. 15 illustrates an example block diagram of a system, according to an embodiment.
  • Certain embodiments may have various aspects and features. These aspects and features may be applied alone or in any desired combination with one another. Other features, procedures, and elements may also be applied in combination with some or all of the aspects and features disclosed herein.
  • FIG. 1 illustrates a high-level sketch of flexible frequency division duplex (FDD) carrier configuration for an unpaired band.
  • FDD flexible frequency division duplex
  • each carrier or cell can have static downlink and uplink transmission frequency domains, dynamic downlink and uplink frequency domains, and a guard band and guard symbols between the downlink and uplink resource regions.
  • UEs User equipment
  • FIG. 1 full duplexing may introduce cross-link interference from UL inter/intra-cell UEs.
  • FIG. 2 illustrates flexible frequency division duplex and frequency division examples.
  • FDU flexible full duplex
  • FD Frequency division
  • gNB next generation Node B
  • UEs may only be allowed to transmit either in UL or DL, but not at the same time, which can be described as functionally half-duplex UEs.
  • FD could come in the form that FD is supported by both the gNB and the UEs.
  • FDU can include a guard band and guard time in one carrier.
  • the introduction of guard resource blocks (RBs) may be to increase the isolation in the reception of the base station.
  • the introduction of guard symbols may be to reduce the interference between users in the cell.
  • the guard RBs and guard symbols will waste many air interface resources.
  • the frame structure of the time division duplex (TDD) mode may have protection symbols for uplink and downlink conversion, and at the same time determine the radius of the cell to prevent uplink and downlink interference, inter-cell interference and so on.
  • FIG. 3 illustrates time division duplex (TDD) frame structure examples.
  • FIG. 4 illustrates full flexible duplex slot examples.
  • the frame structure of the TDD mode FIG. 3 and FIG. 4 may have protection symbols for uplink and downlink conversion, and at the same time determine the radius of the cell to prevent uplink and downlink interference, inter-cell interference and so on.
  • the channel state information reference signal CSI-RS
  • Certain embodiments may use the guard symbols for CLI measurement, and may introduce a new mode CSI-RS for CLI can use in guard symbols.
  • FIG. 5 illustrates a flexible full duplex slot with channel state information reference signal for cross-link interference in half guard period or near to guard period.
  • the CSI-RS for CLI of certain embodiments as illustrated in FIG. 5 can be used to measure the interference of the uplink service users to the downlink service users in the cell and the interference of the uplink users from neighbor cells.
  • the configuration according to certain embodiments can be a flexible configuration of CSI-RS. Certain embodiments can provide for real-time detection of the neighbor cells interference and can make it easier to find DL issues and interference sources.
  • FIG. 6 illustrates channel state information reference signal for cross-link interference with downlink resource allocation type 0 physical downlink shared channel schedule in guard period function examples.
  • the CSI-RS for CLI may be aperiodic. If a UE is configured with a CSI-RS-Resource-CLI configured with a higher layer parameter, the UE may assume that the CSI-RS resources, described in 3GPP TS 38.214, Clause 5.2.2. X, within the NZP-CSI-RS-ResourceSet are transmitted with the same downlink spatial domain transmission filter, and that the CSI-RS resources in the NZP-CSI-RSResourceSet are transmitted in different orthogonal frequency division multiplexed (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexed
  • the UE may further assume that the number of RBs are aligned with a physical downlink shared channel (PDSCH) RB.
  • PDSCH physical downlink shared channel
  • DL PDSCH can be scheduled with downlink resource allocation type 0 and CSI-RS for CLI RB position.
  • the CSI-RS for CLI can be flexibly configured based on PDSCH schedule type.
  • Downlink resource allocation type 0 can be discontinuous resource block group (RBG)
  • type 1 can be continuous RBs.
  • the CSI-RS for CLI may not have a restriction on RB numbers. So, for example, RBs 1 to 276 can be flexibly configured. For example, if PDSCH is one RB, then the CSI-RS for CLI RB can also be one.
  • the RB frequency position can be discrete or discontinuous and can be aligned with PDSCH RB position.
  • Antenna port numbers can align with PDSCH quasi-colocation (QCL) type D with same beams.
  • CSIRS for CLI can use the same beams as PDSCH. For example, if PDSCH is two antenna ports with one beam, CSIRS for CLI may also be two ports with the same beam. Similarly, if PDSCH uses 4 antenna ports with two beams, then the CSI-RS for CLI can use 4 ports with the same beams.
  • FIG. 12 illustrates a channel state information measurement configuration, according to certain embodiments.
  • the value of firstOFDMSymbolInTimeDomain can be configured to provide an appropriate offset with the last PDSCH symbol.
  • item 0 of the CSI-RS for CLI can be offset by 1
  • item 1 of the CSI-RS for CLI can be offset by 2.
  • the CSI-RS for CLI can be aligned with PDSCH. Because CSI-RS for CLI can be configured aperiodically, the periodicity and offset parameter, periodicityAndOffset, can be null.
  • FIG. 12 may correspond, for example, to the resource block usage as illustrated in FIG. 9, in which a two-symbol CSI-RS for CLI can be used with discontinuous or continuous RBs based on PDSCH RBs.
  • the frame structure of the TDD mode shown in FIG. 3 and FIG. 4 may have protection symbols for uplink and downlink conversion.
  • the frame structure may also, at the same time, be determined based on the radius of the cell to prevent uplink and downlink interference, inter-cell interference, and so on.
  • FIG. 7 illustrates an example of a four-symbol guard period.
  • a guard period can be used to control the switching between the UL and DL transmission. More specifically, the GP can be used to take into account the time it takes to switch. For example, switching between transmission directions may have a small hardware delay for both UE and gNodeB. This delay can be compensated by GP. GP can be large enough to cover the propagation delay of DL interferers. Moreover, the length of the guard period may determine the maximum supportable cell size in view of the relation to propagation delay.
  • FIG. 8 illustrates half guard symbols that can be used for CSI-RS CLI measurements, according to certain embodiments.
  • CSI-RS for CLI can be provided in half of the 4 symbols allocated for GP.
  • DL users in different locations can receive the DL signal at different times, and UL UEs in different locations can send the UL signal at different times.
  • the result may be complex interference both intra cell and to/from neighbor cells while FDU function is enabled.
  • the overlapping symbols of CSIRS-CLI and U slot have interference from users in the cell.
  • FIG. 9 illustrates cells having different slot formats, according to certain embodiments.
  • cell1 can have DL and UL traffic
  • cell2 can have at least UL traffic.
  • the first CSIRS-CLI can be used to measure the neighbor cell interference and the second CSIRS for CLI can be used to measure the service cell UL users’ interference and neighbor cells’ interference.
  • the CSI-RS for CLI can be sent in half of the guard symbols, thereby minimizing intra-cell impact.
  • FIG. 10 illustrates various kinds of channel state information reference signal for cross-link interference measurements in the guard period, according to certain embodiments.
  • zero power (SP) CSI-RS can be provided in the second half of the guard period and CSI-RS for CLI can be provided in the first half of the guard period.
  • the CSI-RS for CLI and the ZP CSI-RS can occupy half of the guard period.
  • the downlink (D) such as PDSCH may be in various frequency bands with RBs that are discontinuous, and the CSI-RS for CLI and the ZP CSI-RS can be provided as in 1010.
  • the approach at 1050 is like the approach at 1020 except that the PDSCH is in various frequency bands with RBs that are discontinuous.
  • FIG. 11 illustrates further kinds of channel state information reference signal for cross-link interference measurements near the guard period.
  • CSI-RS for CLI is incorporated into a final symbol of the PDSCH
  • 1120 illustrates the same principle but with distinct bands of downlink and discontinuous RBs.
  • the example at 1130 shows an example in which both CSI-RS for CLI and ZP CSI-RS are incorporated into the final two symbols of the PDSCH or CSI-RS for CLI may be in the last PDSCH symbol and ZP CSI-RS may be in the guard period.
  • These three cases may be considered cases where the CSI-RS for CLI is placed near to the GP.
  • certain embodiments can be applied to “UL interference from neighbor cells” CLI interference detection. When the UL interference from neighbor cells detection is used, the CSIRS for CLI can be placed on a symbol near to the GP, as shown in FIG 11.
  • FIG. 13 illustrates an example flow diagram of a method for providing aperiodic channel state information reference signal for cross-link interference in or near guard symbols in full duplex mode, time division duplex mode, or evolution of duplex operation, according to certain embodiments.
  • FIG. 13 illustrates a method according to certain embodiments.
  • the method can include, at 1310, sending to a user equipment a configuration for channel state information reference signal for cross-link interference measurement.
  • This sending can involve configuring the user equipment with respect to channel state information reference signal for cross-link interference measurement.
  • the channel state information reference signal for cross-link interference measurement can be located around guard period following data part.
  • the sending the configuration at 1310 can include sending a radio resource control reconfiguration.
  • the RRC reconfiguration can provide CSI-RS for CLI parameters to UEs.
  • the details of such reconfiguration may be seen in FIG. 12 and CSI-RS for CLI detail physical layer parameters can refer to 7.4.1.5 CSI reference signals of the third generation partnership project (3GPP) technical specification (TS) 38.211.
  • 3GPP third generation partnership project
  • TS technical specification
  • the method can further include, at 1320, scheduling data to the user equipment with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration.
  • a cell can schedule UE DL data with aperiodic CSI-RS for CLI within half or fewer of the guard symbols or near to a GP symbol.
  • the slot can be an FDU slot or special slot.
  • the cell can indicate the CSI-RS resource for aperiodic CSI-RS for CLI using downlink control information (DCI) .
  • DCI downlink control information
  • the method can additionally include, at 1330, receiving at least one measurement of the aperiodic channel state information reference signal from the user equipment.
  • the at least one measurement can include at least one of signal to interference plus noise ratio (SINR) , channel quality indicator (CQI) , or reference signal received quality (RSRQ) .
  • SINR signal to interference plus noise ratio
  • CQI channel quality indicator
  • RSRQ reference signal received quality
  • the measurement of the aperiodic channel state information reference signal can provide a measurement of interference of uplink service users to downlink service users in a cell.
  • the measurement of the aperiodic channel state information reference signal can provide a measurement of interference of uplink service users from at least one neighbor cell to downlink service users in a cell.
  • the channel state information reference signal for cross-link interference measurement can be located in a guard period following the data.
  • the channel state information reference signal for cross-link interference measurement can be located in a first half of a guard period following the data.
  • the channel state information reference signal for cross-link interference measurement can be located in the data within one or two symbols from the guard period based on half the guard period’s length in symbols.
  • FIG. 13 is provided as one example embodiment of a method or process. However, certain embodiments are not limited to this example, and further examples are possible as discussed elsewhere herein.
  • FIG. 14 illustrates an example flow diagram of a method for providing aperiodic channel state information reference signal for cross-link interference in or near guard symbols in full duplex mode, time division duplex mode, or evolution of duplex operation, according to certain embodiments.
  • the method of FIG. 14 can be used alone or in combination with the method of FIG. 13.
  • FIG. 14 illustrates a method according to certain embodiments.
  • a method can include, at 1410, receiving, at a user equipment from a network element, a configuration for channel state information reference signal for cross-link interference measurement. This can be the same configuration sent at 1310 above.
  • the method can also include, at 1420, receiving receive data at the user equipment from the network element together with an aperiodic channel state information reference signal for cross-link interference measurement in accordance with the configuration. This can be the same data and CSI-RS for CLI scheduled at 1320 above.
  • the UE can obtain at least one measurement of the aperiodic channel state information reference signal. Then, at 1440, the UE can provide, for example report, the at least one measurement to the network element. This can be the same at least one measurement described above with references to 1330.
  • FIG. 14 is provided as one example embodiment of a method or process. However, certain embodiments are not limited to this example, and further examples are possible as discussed elsewhere herein.
  • FIG. 15 illustrates an example of a system that includes an apparatus 10, according to an embodiment.
  • apparatus 10 may be a node, host, or server in a communications network or serving such a network.
  • apparatus 10 may be a network node, satellite, base station, a Node B, an evolved Node B (eNB) , 5G Node B or access point, next generation Node B (NG-NB or gNB) , TRP, HAPS, integrated access and backhaul (IAB) node, and/or a WLAN access point, associated with a radio access network, such as a LTE network, 5G or NR.
  • apparatus 10 may be gNB or other similar radio node, for instance.
  • apparatus 10 may comprise an edge cloud server as a distributed computing system where the server and the radio node may be stand-alone apparatuses communicating with each other via a radio path or via a wired connection, or they may be located in a same entity communicating via a wired connection.
  • apparatus 10 represents a gNB
  • it may be configured in a central unit (CU) and distributed unit (DU) architecture that divides the gNB functionality.
  • the CU may be a logical node that includes gNB functions such as transfer of user data, mobility control, radio access network sharing, positioning, and/or session management, etc.
  • the CU may control the operation of DU (s) over a mid-haul interface, referred to as an F1 interface, and the DU (s) may have one or more radio unit (RU) connected with the DU (s) over a front-haul interface.
  • the DU may be a logical node that includes a subset of the gNB functions, depending on the functional split option. It should be noted that one of ordinary skill in the art would understand that apparatus 10 may include components or features not shown in FIG. 15.
  • apparatus 10 may include a processor 12 for processing information and executing instructions or operations.
  • processor 12 may be any type of general or specific purpose processor.
  • processor 12 may include one or more of general-purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) , field-programmable gate arrays (FPGAs) , application-specific integrated circuits (ASICs) , and processors based on a multi-core processor architecture, or any other processing means, as examples. While a single processor 12 is shown in FIG. 15, multiple processors may be utilized according to other embodiments.
  • apparatus 10 may include two or more processors that may form a multiprocessor system (e.g., in this case processor 12 may represent a multiprocessor) that may support multiprocessing.
  • processor 12 may represent a multiprocessor
  • the multiprocessor system may be tightly coupled or loosely coupled (e.g., to form a computer cluster) .
  • Processor 12 may perform functions associated with the operation of apparatus 10, which may include, for example, precoding of antenna gain/phase parameters, encoding and decoding of individual bits forming a communication message, formatting of information, and overall control of the apparatus 10, including processes related to management of communication or communication resources.
  • Apparatus 10 may further include or be coupled to a memory 14 (internal or external) , which may be coupled to processor 12, for storing information and instructions that may be executed by processor 12.
  • Memory 14 may be one or more memories and of any type suitable to the local application environment, and may be implemented using any suitable volatile or nonvolatile data storage technology such as a semiconductor-based memory device, a magnetic memory device and system, an optical memory device and system, fixed memory, and/or removable memory.
  • memory 14 can be comprised of any combination of random access memory (RAM) , read only memory (ROM) , static storage such as a magnetic or optical disk, hard disk drive (HDD) , or any other type of non-transitory machine or computer readable media, or other appropriate storing means.
  • the instructions stored in memory 14 may include program instructions or computer program code that, when executed by processor 12, enable the apparatus 10 to perform tasks as described herein.
  • apparatus 10 may further include or be coupled to (internal or external) a drive or port that is configured to accept and read an external computer readable storage medium, such as an optical disc, USB drive, flash drive, or any other storage medium.
  • an external computer readable storage medium such as an optical disc, USB drive, flash drive, or any other storage medium.
  • the external computer readable storage medium may store a computer program or software for execution by processor 12 and/or apparatus 10.
  • apparatus 10 may also include or be coupled to one or more antennas 15 for transmitting and receiving signals and/or data to and from apparatus 10.
  • Apparatus 10 may further include or be coupled to a transceiver 18 configured to transmit and receive information.
  • the transceiver 18 may include, for example, a plurality of radio interfaces that may be coupled to the antenna (s) 15, or may include any other appropriate transceiving means.
  • the radio interfaces may correspond to a plurality of radio access technologies including one or more of global system for mobile communications (GSM) , narrow band Internet of Things (NB-IoT) , LTE, 5G, WLAN, Bluetooth (BT) , Bluetooth Low Energy (BT-LE) , near-field communication (NFC) , radio frequency identifier (RFID) , ultrawideband (UWB) , MulteFire, and the like.
  • GSM global system for mobile communications
  • NB-IoT narrow band Internet of Things
  • BT Bluetooth
  • BT-LE Bluetooth Low Energy
  • NFC near-field communication
  • RFID radio frequency identifier
  • UWB ultrawideband
  • MulteFire and the like.
  • the radio interface may include components, such as filters, converters (for example, digital-to-analog converters and the like) , mappers, a Fast Fourier Transform (FFT) module, and the like, to generate symbols for a transmission via one or more downlinks and to receive symbols (via an
  • transceiver 18 may be configured to modulate information on to a carrier waveform for transmission by the antenna (s) 15 and demodulate information received via the antenna (s) 15 for further processing by other elements of apparatus 10.
  • transceiver 18 may be capable of transmitting and receiving signals or data directly.
  • apparatus 10 may include an input and/or output device (I/O device) , or an input/output means.
  • memory 14 may store software modules that provide functionality when executed by processor 12.
  • the modules may include, for example, an operating system that provides operating system functionality for apparatus 10.
  • the memory may also store one or more functional modules, such as an application or program, to provide additional functionality for apparatus 10.
  • the components of apparatus 10 may be implemented in hardware, or as any suitable combination of hardware and software.
  • processor 12 and memory 14 may be included in or may form a part of processing circuitry/means or control circuitry/means.
  • transceiver 18 may be included in or may form a part of transceiver circuitry/means.
  • circuitry may refer to hardware-only circuitry implementations (e.g., analog and/or digital circuitry) , combinations of hardware circuits and software, combinations of analog and/or digital hardware circuits with software/firmware, any portions of hardware processor (s) with software (including digital signal processors) that work together to cause an apparatus (e.g., apparatus 10) to perform various functions, and/or hardware circuit (s) and/or processor (s) , or portions thereof, that use software for operation but where the software may not be present when it is not needed for operation.
  • hardware-only circuitry implementations e.g., analog and/or digital circuitry
  • combinations of hardware circuits and software e.g., combinations of hardware circuits and software, combinations of analog and/or digital hardware circuits with software/firmware, any portions of hardware processor (s) with software (including digital signal processors) that work together to cause an apparatus (e.g., apparatus 10) to perform various functions, and/or hardware circuit (s) and/or processor (s) , or portions thereof, that use
  • circuitry may also cover an implementation of merely a hardware circuit or processor (or multiple processors) , or portion of a hardware circuit or processor, and its accompanying software and/or firmware.
  • circuitry may also cover, for example, a baseband integrated circuit in a server, cellular network node or device, or other computing or network device.
  • apparatus 10 may be or may be a part of a network element or RAN node, such as a base station, access point, Node B, eNB, gNB, TRP, HAPS, IAB node, relay node, WLAN access point, satellite, or the like.
  • apparatus 10 may be a gNB or other radio node, or may be a CU and/or DU of a gNB.
  • apparatus 10 may be controlled by memory 14 and processor 12 to perform the functions associated with any of the embodiments described herein.
  • apparatus 10 may be configured to perform one or more of the processes depicted in any of the flow charts or signaling diagrams described herein, such as those illustrated in FIGs. 5, 6, and 8-14, or any other method described herein.
  • apparatus 10 may be configured to perform a procedure relating to providing aperiodic channel state information reference signal for cross-link interference in or near guard symbols in full duplex mode, time division duplex mode, or evolution of duplex operation, for example.
  • FIG. 15 further illustrates an example of an apparatus 20, according to an embodiment.
  • apparatus 20 may be a node or element in a communications network or associated with such a network, such as a UE, communication node, mobile equipment (ME) , mobile station, mobile device, stationary device, IoT device, or other device.
  • a UE communication node
  • ME mobile equipment
  • IoT device IoT device
  • a UE may alternatively be referred to as, for example, a mobile station, mobile equipment, mobile unit, mobile device, user device, subscriber station, wireless terminal, tablet, smart phone, IoT device, sensor or NB-IoT device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications thereof (e.g., remote surgery) , an industrial device and applications thereof (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain context) , a consumer electronics device, a device operating on commercial and/or industrial wireless networks, or the like.
  • apparatus 20 may be implemented in, for instance, a wireless handheld device, a wireless plug-in accessory, or the like.
  • apparatus 20 may include one or more processors, one or more computer-readable storage medium (for example, memory, storage, or the like) , one or more radio access components (for example, a modem, a transceiver, or the like) , and/or a user interface.
  • apparatus 20 may be configured to operate using one or more radio access technologies, such as GSM, LTE, LTE-A, NR, 5G, WLAN, WiFi, NB-IoT, Bluetooth, NFC, MulteFire, and/or any other radio access technologies. It should be noted that one of ordinary skill in the art would understand that apparatus 20 may include components or features not shown in FIG. 15.
  • apparatus 20 may include or be coupled to a processor 22 for processing information and executing instructions or operations.
  • processor 22 may be any type of general or specific purpose processor.
  • processor 22 may include one or more of general-purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) , field-programmable gate arrays (FPGAs) , application-specific integrated circuits (ASICs) , and processors based on a multi-core processor architecture, as examples. While a single processor 22 is shown in FIG. 15, multiple processors may be utilized according to other embodiments.
  • apparatus 20 may include two or more processors that may form a multiprocessor system (e.g., in this case processor 22 may represent a multiprocessor) that may support multiprocessing.
  • processor 22 may represent a multiprocessor
  • the multiprocessor system may be tightly coupled or loosely coupled (e.g., to form a computer cluster) .
  • Processor 22 may perform functions associated with the operation of apparatus 20 including, as some examples, precoding of antenna gain/phase parameters, encoding and decoding of individual bits forming a communication message, formatting of information, and overall control of the apparatus 20, including processes related to management of communication resources.
  • Apparatus 20 may further include or be coupled to a memory 24 (internal or external) , which may be coupled to processor 22, for storing information and instructions that may be executed by processor 22.
  • Memory 24 may be one or more memories and of any type suitable to the local application environment, and may be implemented using any suitable volatile or nonvolatile data storage technology such as a semiconductor-based memory device, a magnetic memory device and system, an optical memory device and system, fixed memory, and/or removable memory.
  • memory 24 can be comprised of any combination of random access memory (RAM) , read only memory (ROM) , static storage such as a magnetic or optical disk, hard disk drive (HDD) , or any other type of non-transitory machine or computer readable media.
  • the instructions stored in memory 24 may include program instructions or computer program code that, when executed by processor 22, enable the apparatus 20 to perform tasks as described herein.
  • apparatus 20 may further include or be coupled to (internal or external) a drive or port that is configured to accept and read an external computer readable storage medium, such as an optical disc, USB drive, flash drive, or any other storage medium.
  • an external computer readable storage medium such as an optical disc, USB drive, flash drive, or any other storage medium.
  • the external computer readable storage medium may store a computer program or software for execution by processor 22 and/or apparatus 20.
  • apparatus 20 may also include or be coupled to one or more antennas 25 for receiving a downlink signal and for transmitting via an uplink from apparatus 20.
  • Apparatus 20 may further include a transceiver 28 configured to transmit and receive information.
  • the transceiver 28 may also include a radio interface (e.g., a modem) coupled to the antenna 25.
  • the radio interface may correspond to a plurality of radio access technologies including one or more of GSM, LTE, LTE-A, 5G, NR, WLAN, NB-IoT, Bluetooth, BT-LE, NFC, RFID, UWB, and the like.
  • the radio interface may include other components, such as filters, converters (for example, digital-to-analog converters and the like) , symbol demappers, signal shaping components, an Inverse Fast Fourier Transform (IFFT) module, and the like, to process symbols, such as OFDMA symbols, carried by a downlink or an uplink.
  • filters for example, digital-to-analog converters and the like
  • symbol demappers for example, digital-to-analog converters and the like
  • signal shaping components for example, an Inverse Fast Fourier Transform (IFFT) module, and the like
  • IFFT Inverse Fast Fourier Transform
  • transceiver 28 may be configured to modulate information on to a carrier waveform for transmission by the antenna (s) 25 and demodulate information received via the antenna (s) 25 for further processing by other elements of apparatus 20.
  • transceiver 28 may be capable of transmitting and receiving signals or data directly.
  • apparatus 20 may include an input and/or output device (I/O device) .
  • apparatus 20 may further include a user interface, such as a graphical user interface or touchscreen.
  • memory 24 stores software modules that provide functionality when executed by processor 22.
  • the modules may include, for example, an operating system that provides operating system functionality for apparatus 20.
  • the memory may also store one or more functional modules, such as an application or program, to provide additional functionality for apparatus 20.
  • the components of apparatus 20 may be implemented in hardware, or as any suitable combination of hardware and software.
  • apparatus 20 may optionally be configured to communicate with apparatus 10 via a wireless or wired communications link 70 according to any radio access technology, such as NR.
  • processor 22 and memory 24 may be included in or may form a part of processing circuitry or control circuitry.
  • transceiver 28 may be included in or may form a part of transceiving circuitry.
  • apparatus 20 may be a UE, SL UE, relay UE, mobile device, mobile station, ME, IoT device and/or NB-IoT device, or the like, for example.
  • apparatus 20 may be controlled by memory 24 and processor 22 to perform the functions associated with any of the embodiments described herein, such as one or more of the operations illustrated in, or described with respect to, FIGs. 5, 6, and 8-14, or any other method described herein.
  • apparatus 20 may be controlled to perform a process relating to providing aperiodic channel state information reference signal for cross-link interference in or near guard symbols in full duplex mode, time division duplex mode, or evolution of duplex operation, as described in detail elsewhere herein.
  • an apparatus may include means for performing a method, a process, or any of the variants discussed herein.
  • the means may include one or more processors, memory, controllers, transmitters, receivers, and/or computer program code for causing the performance of any of the operations discussed herein.
  • certain example embodiments provide several technological improvements, enhancements, and/or advantages over existing technological processes and constitute an improvement at least to the technological field of wireless network control and/or management.
  • Certain embodiments may have various benefits and/or advantages.
  • certain embodiments may save and use air interface resources in guard symbols.
  • the distance between uplink and downlink users in the cell can be judged by the interference difference between the two symbols.
  • neighbor cell interference can be detected in real-time, which can result in greater ease in finding downlink issues. Compared with measuring only CLI-SRS or RSSI, measuring downlink CSIRS for CLI can measure the interference level more accurately.
  • Certain embodiments may be able to reuse the Table 7.4.1.5.3-1: CSI-RS locations within a slot in 3GPP TS 38.211. Certain embodiments do not need configuration of numerology of RBs and symbols, that trigger by DCI with PDSCH data and align with PDSCH RBs. The symbol position can start from the last PDSCH symbol. CLI measurement may be performed without needing all UE to measure. For example, just DL traffic users may be measured. Discontinuous CSI-RS can also help users to do channel estimation and compensation.
  • FIG. 10 illustrates various kinds of channel state information reference signal for cross-link interference measurements, according to certain embodiments.
  • any of the methods, processes, signaling diagrams, algorithms or flow charts described herein may be implemented by software and/or computer program code or portions of code stored in memory or other computer readable or tangible media, and may be executed by a processor.
  • an apparatus may include or be associated with at least one software application, module, unit or entity configured as arithmetic operation (s) , or as a program or portions of programs (including an added or updated software routine) , which may be executed by at least one operation processor or controller.
  • Programs also called program products or computer programs, including software routines, applets and macros, may be stored in any apparatus-readable data storage medium and may include program instructions to perform particular tasks.
  • a computer program product may include one or more computer-executable components which, when the program is run, are configured to carry out some example embodiments.
  • the one or more computer-executable components may be at least one software code or portions of code. Modifications and configurations required for implementing the functionality of an example embodiment may be performed as routine (s) , which may be implemented as added or updated software routine (s) .
  • software routine (s) may be downloaded into the apparatus.
  • software or computer program code or portions of code may be in source code form, object code form, or in some intermediate form, and may be stored in some sort of carrier, distribution medium, or computer readable medium, which may be any entity or device capable of carrying the program.
  • carrier may include a record medium, computer memory, read-only memory, photoelectrical and/or electrical carrier signal, telecommunications signal, and/or software distribution package, for example.
  • the computer program may be executed in a single electronic digital computer or it may be distributed amongst a number of computers.
  • the computer readable medium or computer readable storage medium may be a non-transitory medium.
  • example embodiments may be performed by hardware or circuitry included in an apparatus, for example through the use of an application specific integrated circuit (ASIC) , a programmable gate array (PGA) , a field programmable gate array (FPGA) , or any other combination of hardware and software.
  • ASIC application specific integrated circuit
  • PGA programmable gate array
  • FPGA field programmable gate array
  • the functionality of example embodiments may be implemented as a signal, such as a non-tangible means, that can be carried by an electromagnetic signal downloaded from the Internet or other network.
  • an apparatus such as a node, device, or a corresponding component, may be configured as circuitry, a computer or a microprocessor, such as single-chip computer element, or as a chipset, which may include at least a memory for providing storage capacity used for arithmetic operation (s) and/or an operation processor for executing the arithmetic operation (s) .
  • Example embodiments described herein may apply to both singular and plural implementations, regardless of whether singular or plural language is used in connection with describing certain embodiments.
  • an embodiment that describes operations of a single network node may also apply to example embodiments that include multiple instances of the network node, and vice versa.

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

Abstract

L'invention concerne des systèmes, des procédés, des appareils et des produits-programmes informatiques permettant de fournir un signal de référence d'informations d'état de canal apériodique pour une interférence entre liaisons dans des symboles de garde ou à proximité de ces derniers, dans un mode duplex intégral, un mode duplex à répartition dans le temps ou une évolution d'une opération duplex. Par exemple, un procédé peut consister à configurer un signal de référence d'informations d'état de canal d'équipement utilisateur pour une mesure d'interférence entre liaisons. Le signal de référence d'informations d'état de canal pour une mesure d'interférence entre liaisons peut être situé autour d'une période de garde suivant une partie de données. Le procédé peut également consister à planifier des données pour l'équipement utilisateur avec un signal de référence d'informations d'état de canal apériodique pour une mesure d'interférence entre liaisons conformément à la configuration. Le procédé peut en outre consister à recevoir au moins une mesure du signal de référence d'informations d'état de canal apériodique en provenance de l'équipement utilisateur.
PCT/CN2022/089166 2022-04-26 2022-04-26 Signal de référence d'informations d'état de canal apériodique pour interférence entre liaisons dans des symboles de garde ou à proximité de ces derniers WO2023206051A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130170387A1 (en) * 2010-09-14 2013-07-04 Nokia Corporation Interference Measurement and Reporting for Device-to-Device Communications in a Communication System
CN108242985A (zh) * 2016-12-23 2018-07-03 维沃移动通信有限公司 一种参考信号配置方法、网络侧设备和用户设备
CN110383722A (zh) * 2017-01-09 2019-10-25 Lg电子株式会社 报告测量数据的方法及其终端
CN112889336A (zh) * 2018-10-25 2021-06-01 高通股份有限公司 用于远程设备的干扰减轻

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130170387A1 (en) * 2010-09-14 2013-07-04 Nokia Corporation Interference Measurement and Reporting for Device-to-Device Communications in a Communication System
CN108242985A (zh) * 2016-12-23 2018-07-03 维沃移动通信有限公司 一种参考信号配置方法、网络侧设备和用户设备
CN110383722A (zh) * 2017-01-09 2019-10-25 Lg电子株式会社 报告测量数据的方法及其终端
CN112889336A (zh) * 2018-10-25 2021-06-01 高通股份有限公司 用于远程设备的干扰减轻

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