WO2023213302A1 - Procédés et contraintes pour une configuration d'ue dans un réseau de sous-bande en duplex intégral - Google Patents

Procédés et contraintes pour une configuration d'ue dans un réseau de sous-bande en duplex intégral Download PDF

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Publication number
WO2023213302A1
WO2023213302A1 PCT/CN2023/092308 CN2023092308W WO2023213302A1 WO 2023213302 A1 WO2023213302 A1 WO 2023213302A1 CN 2023092308 W CN2023092308 W CN 2023092308W WO 2023213302 A1 WO2023213302 A1 WO 2023213302A1
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WIPO (PCT)
Prior art keywords
subband
restricting
clusters
gbs
rbs
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PCT/CN2023/092308
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English (en)
Inventor
Jozsef Gabor NEMETH
Mohammed S Aleabe AL-IMARI
Timothy Frost
Lung-Sheng Tsai
Francesc Boixadera-Espax
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Mediatek Singapore Pte. Ltd.
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Application filed by Mediatek Singapore Pte. Ltd. filed Critical Mediatek Singapore Pte. Ltd.
Priority to TW112116868A priority Critical patent/TW202349907A/zh
Publication of WO2023213302A1 publication Critical patent/WO2023213302A1/fr

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    • 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
    • H04L5/1461—Suppression of signals in the return path, i.e. bidirectional control circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present disclosure is generally related to mobile communications and, more particularly, to methods and constraints for user equipment (UE) configuration in subband-fullduplex (SBFD) networks.
  • UE user equipment
  • SBFD subband-fullduplex
  • a time-division duplex (TDD) carrier is portioned into uplink (UL) and downlink (DL) subbands where different half-duplex UEs can transmit and receive concurrently.
  • the intra-cell and inter-site interferences include gNB self-interference and cross-link interferences (CLIs) .
  • the CLIs include gNB/DL-to-gNB-UL and UE/UL-to-UE/DL. Suppression of one or another type of interference would require a frequency guard band (GB) between UL and DL subbands within partitioned symbols and slots.
  • GB frequency guard band
  • Another issue is that scheduling constraints with respect to GB sizes need to be defined. Another issue is that enhanced UE may be required to achieve a certain level of isolation from UL subband transmission of an aggressor UE to the ongoing reception in the DL subband. A further issue is that, if the link direction in a subband of a particular symbol or slot can flip from UL to DL, or vice versa (e.g., due to dynamic scheduling) , then all subbands are used in the same link direction. As such, it is an open issue as to whether these GBs ought to be maintained or could be allocated to transmission or reception. In other words, whether the scheduling in this case behaves the same as that for non-partitioned symbols/slots is an issue that needs to be addressed. Therefore, there is a need for a solution of methods and constraints for UE configuration in SBFD networks.
  • An objective of the present disclosure is to propose solutions or schemes that address the issue (s) described herein. More specifically, various schemes proposed in the present disclosure are believed to provide solutions involving methods and constraints for UE configuration in SBFD networks. For instance, some of the proposed schemes in accordance with the present disclosure aim to restrict the flexibility in frequency-domain partitioning, with respect to the allowed number of subbands and the allowed number of partitioning configurations, respectively.
  • Some other proposed schemes in accordance with the present disclosure aim to reuse the GB for allocations when a link direction in a subband of a particular symbol or slot flips from UL to DL, or vice versa, in such a way that all subbands are used in the same link direction (e.g., as if the slot/symbol was not partitioned) .
  • a method may involve a UE communicating in a SBFD.
  • the method may also involve the UE restricting flexibility in frequency-domain subband partitioning within one or more symbols or slots with respect to either or both of an allowed number of subbands and an allowed number of partitioning configurations.
  • a method may involve a UE communicating in a SBFD.
  • the method may also involve the UE reusing flexibility GBs in resource allocations when a link direction of a subband or cluster of a symbol or slot is switched from one of UL and DL directions to another of the UL and DL directions such that all subbands or clusters of the symbol or slot are used in a same link direction.
  • an apparatus implementable in an application server side network may include a transceiver and a processor coupled to the transceiver.
  • the transceiver may be configured to communicate wirelessly.
  • the processor may communicate in a SBFD RAN and perform either or both of: (1) restricting flexibility in frequency-domain subband partitioning within one or more symbols or slots with respect to either or both of an allowed number of subbands and an allowed number of partitioning configurations; and (2) reusing flexibility GBs in resource allocations when a link direction of a subband or cluster of a symbol or slot is switched from one of UL and DL directions to another of the UL and DL directions such that all subbands or clusters of the symbol or slot are used in a same link direction.
  • LTE Long-Term Evolution
  • NB-IoT Narrow Band Internet of Things
  • IIoT Industrial Internet of Things
  • V2X vehicle-to-everything
  • NTN non-terrestrial network
  • FIG. 1 is a diagram of an example network environment in which various proposed schemes in accordance with the present disclosure may be implemented.
  • FIG. 2 is a diagram of an example scenario under a proposed scheme in accordance with the present disclosure.
  • FIG. 3 is a diagram of an example scenario under a proposed scheme in accordance with the present disclosure.
  • FIG. 4 is a diagram of an example scenario under a proposed scheme in accordance with the present disclosure.
  • FIG. 5 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
  • FIG. 6 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 7 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and/or solutions pertaining to methods and constraints for UE configuration in SBFD networks.
  • a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
  • the term “subband” or “cluster” may refer to a contiguous set of resource blocks (RBs) sharing the same link direction.
  • the term “group of RBs” or “RB set” may refer to a set of contiguous RBs within a carrier and should be distinguished from the existing concept of “RB sets” in Release 17 (R17) of the 3GPP specification regarding New Radio unlicensed band (NR-U) , which are used in wideband operation over shared spectrum.
  • the concept of cluster availability is based on listen-before-talk in R17 while, in R18, cluster availability for sending or receiving is based on a periodic subband layout pattern. In R17, all UEs use the same cluster availability, whereas in R18, cluster configurations may be different per UE.
  • non-contiguous cluster operation is not allowed in R17, whereas in R18, non-contiguous cluster operation needs to be supported. Furthermore, in R18, it is assumed that there is co-existence of legacy UEs (time-division duplexing (TDD) ) and enhanced UEs (SBFD-aware) .
  • the term “CLI” may refer to cross-link interference (e.g., UE/UL-to-UE/DL, gNB/DL-to-gNB/UL) .
  • SIC may refer to self-interference cancellation on the gNB side.
  • CC may refer to component carrier in the context of carrier aggregation (CA) or multi-carrier duplexing.
  • the term “RateMatchPattern” may refer to a concept used by the 3GPP standard to define a frequency-time region and its repetitions (called a pattern) over the network resources that are excluded from those network resources used by a DL transmission scheduled in an overlapping region. To send the same payload over less resources, the coding rate needs to be matched.
  • the term “active UE DL cluster” may refer to a cluster that is schedulable for a UE in a given slot when the UE is receiving.
  • the term “active UE UL cluster” may refer to a cluster that is schedulable for a UE in a given slot when the UE is transmitting.
  • the term “active UE cluster” may refer to any DL or UL cluster that is schedulable for the UE in a given slot.
  • FIG. 1 illustrates an example network environment 100 in which various solutions and schemes in accordance with the present disclosure may be implemented.
  • FIG. 2 ⁇ FIG. 7 illustrate examples of implementation of various proposed schemes in network environment 100 in accordance with the present disclosure. The following description of various proposed schemes is provided with reference to FIG. 1 ⁇ FIG. 7.
  • network environment 100 may involve a UE 110 in wireless communication with a RAN 120 (e.g., a 5G NR mobile network or another type of network such as an NTN) .
  • UE 110 may be in wireless communication with RAN 120 via a base station or network node 125 (e.g., an eNB, gNB or transmit-receive point (TRP) ) .
  • RAN 120 may be a part of a network 130.
  • UE 110 and network 130 via network node 125 of RAN 120 may implement various schemes pertaining to methods and constraints for UE configuration in SBFD networks, as described below.
  • a UE For a single component carrier (CC) in a licensed band, a UE can be configured with a single contiguous range of channel resource blocks (CRBs) for DL reception or UL transmission as determined by UE channel bandwidth and bandwidth part (BWP) configurations.
  • CRBs channel resource blocks
  • BWP bandwidth part
  • a base station e.g., gNB
  • gNB can transmit and receive on non-overlapping frequency subbands in a given slot.
  • the configuration of subbands applicable over a radio frame within the network/gNB is referred to as a subband layout.
  • transmitting (Tx) and receiving (Rx) subband selectivity can reduce the DL-UL BS self-interference as well as BS-BW cross-link interferences.
  • Tx and Rx receiving subband selectivity
  • For a legacy victim UE depending on its DL BWP RB configuration with respect to an aggressor UE UL transmission RB, there may be two UE-UE CLI situations or cases. In a first case (Case 1) , the aggressor UL UE is transmitting in a stop-band of the victim UE receiver.
  • the interference in the respective RBs is attenuated by an adjacent subband selectivity of the receiver (ASBS) .
  • ASBS adjacent subband selectivity of the receiver
  • ASBLR adjacent subband leakage ratio
  • the aggressor UL UE is transmitting in a pass-band of the victim UE receiver.
  • the interference in the respective RBs is attenuated by in-cell selectivity of the receiver (ICS) .
  • the in-channel selectivity may be the limiting factor, compared to adjacent channel leakage ratio (ACLR) and/or ASBLR.
  • the current 3GPP specification e.g., in 3GPP Technical Specification (TS) 38.101-1) seems to suggest that adjacent channel selectivity (ACS) and ACLR should apply not only to carriers but also BWP, provided that the minimum GB requirements are met.
  • a cluster is composed of a group of contiguous, schedulable RBs.
  • cluster size may be expressed in terms of the number of RBs that can be scheduled.
  • Adjacent UL and DL clusters are separated by GBs, in a similar way as channels are.
  • the term “subband” may interchangeably refer to “cluster” , but in certain contexts it may refer to the bandwidth including GBs as well (e.g., when reference is made to the nominal channel bandwidths) .
  • UE channel configuration or BWP configuration may be used to determine the selected cluster.
  • transmission (Tx) and reception (Rx) selectivity may only be assumed if standard channel sizes are selected. Therefore, network configurations may be constrained to ensure that Tx and RX inter-subband selectivity can be assumed for legacy UEs operating in the cell.
  • Enhanced UEs may or may not support the case in which multiple clusters are active in a specific link direction in a specific slot.
  • new methods may be devised for cluster configuration. One extreme may be that the cluster only selects a group of RBs (e.g., single/multiple RB sets) .
  • the other extreme may be that the cluster also has attributes that govern allocations similarly as with attributes of a BWP (e.g., single/multiple active BWPs) .
  • Other solutions between the two extremes may be utilized.
  • the network and enhanced UEs may need to support fast reconfiguration of subband partitions between subsequent slots.
  • MIB master information block
  • RRC radio resource control
  • a number of inter-subband GBs and/or distributed active clusters in a DL or UL BWP of a UE may be limited by the 3GPP specification and/or by UE capability reporting.
  • the same limit on the number of GBs may apply to both DL and UL transmissions.
  • the same limit on the number of distributed clusters may apply to both DL and UL transmissions.
  • the limit may apply on the number of distributed DL and UL active clusters.
  • a set of subband layouts (with parametrized subband sizes) may be predefined in the 3GPP standard.
  • a number of GB frequency positions within a periodic subband layout pattern and/or a change of GB frequency positions between two adjacent slots may be restricted by the 3GPP specification and/or UE capability reporting.
  • the number of inter-subband GB positions may be limited to 1 (not counting the GBs on the channel edges) .
  • the inter-subband GB (s) may be enabled and disabled between adjacent slots but may not move or change in frequency.
  • a cluster is simply a group of RBs in a CRB-to-PRB mapping
  • the aggregation of such group of RBs may freely be done as it is transparent to scheduling.
  • clusters may be non-transparent to scheduling and additional rules may be required to aggregate respective allocations.
  • a group of schedulable RBs may be joined in case their GBs fully overlap with the aggregated schedulable RBs.
  • localized clusters may be formed from adjacent clusters separated by GBs when their link direction are (or change from one slot to another) identical (e.g., both DL or both UL) by replacing these GBs with schedulable RBs.
  • FIG. 2 illustrates an example scenario 200 under a proposed scheme in accordance with the present disclosure.
  • Each of parts (A) , (B) and (C) of FIG. 2 shows an example of clusters or sets of RBs for DL and UL transmissions.
  • Each of parts (B) and (C) of FIG. 2 also shows use of GBs.
  • scenario 200 it may be assumed that the same subband layout may repeat in each radio frame.
  • a UE configuration method may involve enabling and/or disabling clusters in each slot, and localized clusters may be applied where the entire bandwidth is available to DL or UL transmissions exclusively. With localized clusters, all the RBs may become available for scheduling, and receiver filtering may protect the aggregate cluster.
  • FIG. 3 illustrates an example scenario 300 under a proposed scheme in accordance with the present disclosure.
  • GBs may lose their effect in that they are no longer in effect between localized clusters. This may effectively involve the BS receiver filter switched and a single fast Fourier transform (FFT) used. Minimum GB constraints may need to be met for the increased bandwidth, too.
  • FFT fast Fourier transform
  • FIG. 4 illustrates an example scenario 400 under a proposed scheme in accordance with the present disclosure.
  • GBs may lose their effect in that they are no longer in effect between localized clusters.
  • the in-between GBs may be merged into RBs that can be allocated.
  • the BS receiver filter needs to be switched and the FFT size needs to be updated.
  • Minimum GB constraints may need to be met for the increased bandwidth, too.
  • FIG. 5 illustrates an example communication system 500 having at least an example apparatus 510 and an example apparatus 520 in accordance with an implementation of the present disclosure.
  • apparatus 510 and apparatus 520 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to methods and constraints for UE configuration in SBFD networks, including the various schemes described above with respect to various proposed designs, concepts, schemes, systems and methods described above, including network environment 100, as well as processes described below.
  • Each of apparatus 510 and apparatus 520 may be a part of an electronic apparatus, which may be a network apparatus or a UE (e.g., UE 110) , such as a portable or mobile apparatus, a wearable apparatus, a vehicular device or a vehicle, a wireless communication apparatus or a computing apparatus.
  • a network apparatus e.g., UE 110
  • UE e.g., UE 110
  • each of apparatus 510 and apparatus 520 may be implemented in a smartphone, a smart watch, a personal digital assistant, an electronic control unit (ECU) in a vehicle, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer.
  • ECU electronice control unit
  • Each of apparatus 510 and apparatus 520 may also be a part of a machine type apparatus, which may be an IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a roadside unit (RSU) , a wire communication apparatus or a computing apparatus.
  • IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a roadside unit (RSU) , a wire communication apparatus or a computing apparatus.
  • RSU roadside unit
  • each of apparatus 510 and apparatus 520 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center.
  • apparatus 510 and/or apparatus 520 may be implemented in an eNodeB in an LTE, LTE-Advanced or LTE-Advanced Pro network or in a gNB or TRP in a 5G network, an NR network or an IoT network.
  • each of apparatus 510 and apparatus 520 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more complex-instruction-set-computing (CISC) processors, or one or more reduced-instruction-set-computing (RISC) processors.
  • IC integrated-circuit
  • CISC complex-instruction-set-computing
  • RISC reduced-instruction-set-computing
  • each of apparatus 510 and apparatus 520 may be implemented in or as a network apparatus or a UE.
  • Each of apparatus 510 and apparatus 520 may include at least some of those components shown in FIG. 5 such as a processor 512 and a processor 522, respectively, for example.
  • Each of apparatus 510 and apparatus 520 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of apparatus 510 and apparatus 520 are neither shown in FIG. 5 nor described below in the interest of simplicity and brevity.
  • components not pertinent to the proposed scheme of the present disclosure e.g., internal power supply, display device and/or user interface device
  • each of processor 512 and processor 522 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC or RISC processors. That is, even though a singular term “aprocessor” is used herein to refer to processor 512 and processor 522, each of processor 512 and processor 522 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 512 and processor 522 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure.
  • each of processor 512 and processor 522 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including those pertaining to methods and constraints for UE configuration in SBFD networks in accordance with various implementations of the present disclosure.
  • apparatus 510 may also include a transceiver 516 coupled to processor 512.
  • Transceiver 516 may be capable of wirelessly transmitting and receiving data.
  • transceiver 516 may be capable of wirelessly communicating with different types of wireless networks of different radio access technologies (RATs) .
  • RATs radio access technologies
  • transceiver 516 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 516 may be equipped with multiple transmit antennas and multiple receive antennas for multiple-input multiple-output (MIMO) wireless communications.
  • apparatus 520 may also include a transceiver 526 coupled to processor 522.
  • Transceiver 526 may include a transceiver capable of wirelessly transmitting and receiving data.
  • transceiver 526 may be capable of wirelessly communicating with different types of UEs/wireless networks of different RATs.
  • transceiver 526 may be equipped with a plurality of antenna ports (not shown) such as, for example, four antenna ports. That is, transceiver 526 may be equipped with multiple transmit antennas and multiple receive antennas for MIMO wireless communications.
  • apparatus 510 may further include a memory 514 coupled to processor 512 and capable of being accessed by processor 512 and storing data therein.
  • apparatus 520 may further include a memory 524 coupled to processor 522 and capable of being accessed by processor 522 and storing data therein.
  • RAM random-access memory
  • DRAM dynamic RAM
  • SRAM static RAM
  • T-RAM thyristor RAM
  • Z-RAM zero-capacitor RAM
  • each of memory 514 and memory 524 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and/or electrically erasable programmable ROM (EEPROM) .
  • ROM read-only memory
  • PROM programmable ROM
  • EPROM erasable programmable ROM
  • EEPROM electrically erasable programmable ROM
  • each of memory 514 and memory 524 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and/or phase-change memory.
  • NVRAM non-volatile random-access memory
  • Each of apparatus 510 and apparatus 520 may be a communication entity capable of communicating with each other using various proposed schemes in accordance with the present disclosure.
  • a description of capabilities of apparatus 510, as a UE (e.g., UE 110) , and apparatus 520, as a network node (e.g., network node 125) of a network e.g., network 130 as a 5G/NR mobile network
  • a description of capabilities of apparatus 510, as a UE (e.g., UE 110) , and apparatus 520, as a network node (e.g., network node 125) of a network e.g., network 130 as a 5G/NR mobile network
  • processor 512 of apparatus 510 may communicate, via transceiver 516, in a SBFD RAN of a network (e.g., network 130 via apparatus 520 as network node 125) .
  • processor 512 may restrict, via transceiver 516, flexibility in frequency-domain subband partitioning within one or more symbols or slots with respect to either or both of an allowed number of subbands and an allowed number of partitioning configurations.
  • processor 512 may restrict either or both of the following: (a) a number of inter-subband GBs; and (b) one or more distributed active clusters in a DL or UL BWP of the UE.
  • a same limit on the number of inter-subband GBs may be applied in both DL and UL directions.
  • a same limit on a number of the one or more distributed active clusters may be applied in both DL and UL directions.
  • processor 512 may apply a limit on a number of distributed DL and UL active clusters.
  • process 600 may involve processor 512 restricting based on a predefined set of subband layouts.
  • processor 512 may restrict either or both of the following: (a) a number of GB frequency positions within a periodic subband layout pattern; and (b) a change of the GB frequency positions between two adjacent slots. In some implementations, in restricting, processor 512 may restrict a number of inter-subband GB positions to 1. In some implementations, in restricting, processor 512 may enable one or more inter-subband GB positions between adjacent slots. Alternatively, in restricting, processor 512 may disable one or more inter-subband GB positions between adjacent slots.
  • processor 512 of apparatus 510 may communicate, via transceiver 516, in a SBFD RAN of a network (e.g., network 130 via apparatus 520 as network node 125) .
  • processor 512 may reuse, via transceiver 516, GBs in resource allocations when a link direction of a subband or cluster of a symbol or slot is switched from one of UL and DL directions to another of the UL and DL directions such that all subbands or clusters of the symbol or slot are used in a same link direction.
  • a group of resource blocks RBs in the subband or cluster may be aggregated.
  • a group of schedulable RBs may be joined responsive to respective GBs of the group of schedulable RBs fully overlap with aggregated schedulable RBs of localized clusters.
  • localized clusters may be formed from adjacent clusters separated by respective GBs responsive to respective link direction being identical by replacing the respective GBs with schedulable RBs.
  • FIG. 6 illustrates an example process 600 in accordance with an implementation of the present disclosure.
  • Process 600 may represent an aspect of implementing various proposed designs, concepts, schemes, systems and methods described above, whether partially or entirely, including those pertaining to those described above. More specifically, process 600 may represent an aspect of the proposed concepts and schemes pertaining to methods and constraints for UE configuration in SBFD networks.
  • Process 600 may include one or more operations, actions, or functions as illustrated by one or more of blocks 610 and 620. Although illustrated as discrete blocks, various blocks of process 600 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks/sub-blocks of process 600 may be executed in the order shown in FIG. 6 or, alternatively in a different order.
  • Process 600 may be implemented by or in apparatus 510 and apparatus 520 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 600 is described below in the context of apparatus 510 as a UE (e.g., UE 110) and apparatus 520 as a communication entity such as a network node or base station (e.g., network node 125 network node 125) of a network (e.g., network 130 as a 5G/NR mobile network) .
  • Process 600 may begin at block 610.
  • process 600 may involve processor 512 of apparatus 510 communicating, via transceiver 516, in a SBFD RAN of a network (e.g., network 130 via apparatus 520 as network node 125) .
  • Process 600 may proceed from 610 to 620.
  • process 600 may involve processor 512 restricting, via transceiver 516, flexibility in frequency-domain subband partitioning within one or more symbols or slots with respect to either or both of an allowed number of subbands and an allowed number of partitioning configurations.
  • process 600 may involve processor 512 restricting either or both of the following: (a) a number of inter-subband GBs; and (b) one or more distributed active clusters in a DL or UL BWP of the UE.
  • a same limit on the number of inter-subband GBs may be applied in both DL and UL directions.
  • a same limit on a number of the one or more distributed active clusters may be applied in both DL and UL directions.
  • process 600 may involve processor 512 applying a limit on a number of distributed DL and UL active clusters.
  • process 600 may involve processor 512 restricting based on a predefined set of subband layouts.
  • process 600 may involve processor 512 restricting either or both of the following: (a) a number of GB frequency positions within a periodic subband layout pattern; and (b) a change of the GB frequency positions between two adjacent slots.
  • process 600 may involve processor 512 restricting a number of inter-subband GB positions to 1.
  • process 600 may involve processor 512 enabling one or more inter-subband GB positions between adjacent slots.
  • process 600 may involve processor 512 disabling one or more inter-subband GB positions between adjacent slots.
  • FIG. 7 illustrates an example process 700 in accordance with an implementation of the present disclosure.
  • Process 700 may represent an aspect of implementing various proposed designs, concepts, schemes, systems and methods described above, whether partially or entirely, including those pertaining to those described above. More specifically, process 700 may represent an aspect of the proposed concepts and schemes pertaining to methods and constraints for UE configuration in SBFD networks.
  • Process 700 may include one or more operations, actions, or functions as illustrated by one or more of blocks 710 and 720. Although illustrated as discrete blocks, various blocks of process 700 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks/sub-blocks of process 700 may be executed in the order shown in FIG. 7 or, alternatively in a different order.
  • Process 700 may be implemented by or in apparatus 510 and apparatus 520 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 700 is described below in the context of apparatus 510 as a UE (e.g., UE 110) and apparatus 520 as a communication entity such as a network node or base station (e.g., network node 125 network node 125) of a network (e.g., network 130 as a 5G/NR mobile network) .
  • Process 700 may begin at block 710.
  • process 700 may involve processor 512 of apparatus 510 communicating, via transceiver 516, in a SBFD RAN of a network (e.g., network 130 via apparatus 520 as network node 125) .
  • Process 700 may proceed from 710 to 720.
  • process 700 may involve processor 512 reusing, via transceiver 516, GBs in resource allocations when a link direction of a subband or cluster of a symbol or slot is switched from one of UL and DL directions to another of the UL and DL directions such that all subbands or clusters of the symbol or slot are used in a same link direction.
  • a group of resource blocks RBs in the subband or cluster may be aggregated.
  • a group of schedulable RBs may be joined responsive to respective GBs of the group of schedulable RBs fully overlap with aggregated schedulable RBs of localized clusters.
  • localized clusters may be formed from adjacent clusters separated by respective GBs responsive to respective link direction being identical by replacing the respective GBs with schedulable RBs.
  • any two components so associated can also be viewed as being “operably connected” , or “operably coupled” , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable” , to each other to achieve the desired functionality.
  • operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne des techniques se rapportant à des procédés et des contraintes pour un équipement utilisateur (UE) dans des réseaux de sous-bande en duplex intégral (SBFD). Un UE communique dans un réseau d'accès radio (RAN) SBFD et effectue l'une ou l'autre ou les deux parmi les étapes suivantes consistant à : (1) limiter la flexibilité dans le partitionnement de sous-bandes dans le domaine fréquentiel dans un ou plusieurs symboles ou créneaux par rapport à un nombre autorisé de sous-bandes et/ou à un nombre autorisé de configurations de partitionnement ; et (2) réutiliser des bandes de garde de flexibilité (GB) dans des attributions de ressources lorsqu'une direction de liaison d'une sous-bande ou d'un groupe d'un symbole ou d'un créneau est commutée de l'une des directions de liaison montante (UL) et de liaison descendante (DL) à une autre des directions UL et DL de telle sorte que tous les sous-bandes ou groupes du symbole ou du créneau sont utilisés dans une même direction de liaison.
PCT/CN2023/092308 2022-05-06 2023-05-05 Procédés et contraintes pour une configuration d'ue dans un réseau de sous-bande en duplex intégral WO2023213302A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021203233A1 (fr) * 2020-04-07 2021-10-14 Qualcomm Incorporated Restriction de sous-ensemble de livre de codes spécifique de sous-bande
US20210336759A1 (en) * 2020-04-27 2021-10-28 Qualcomm Incorporated Bandwidth part (bwp) inactivity and mode switching for full duplex operation
US20210352667A1 (en) * 2020-05-08 2021-11-11 Qualcomm Incorporated Frequency domain resource allocation techniques for full duplex communications
US20220086029A1 (en) * 2020-09-17 2022-03-17 Qualcomm Incorporated Guard bands for resource block sets of full duplex slot configured bandwidth parts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021203233A1 (fr) * 2020-04-07 2021-10-14 Qualcomm Incorporated Restriction de sous-ensemble de livre de codes spécifique de sous-bande
US20210336759A1 (en) * 2020-04-27 2021-10-28 Qualcomm Incorporated Bandwidth part (bwp) inactivity and mode switching for full duplex operation
US20210352667A1 (en) * 2020-05-08 2021-11-11 Qualcomm Incorporated Frequency domain resource allocation techniques for full duplex communications
US20220086029A1 (en) * 2020-09-17 2022-03-17 Qualcomm Incorporated Guard bands for resource block sets of full duplex slot configured bandwidth parts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INCORPORATED: "On deployment scenarios and evaluation methodology for NR duplex evolution", 3GPP DRAFT; R1-2205030, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20220509 - 20220520, 29 April 2022 (2022-04-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052191696 *

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