TW202349907A - Method for wireless communication and apparatus implementable in user equipment - Google Patents

Abstract

Techniques pertaining to methods and constraints for user equipment (UE) in subband-fullduplex (SBFD) networks are described. A UE communicates in a SBFD radio access network (RAN) and performs 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 guard bands (GBs) in resource allocations when a link direction of a subband or cluster of a symbol or slot is switched from one of uplink (UL) and downlink (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.

Description

Wireless communication method and device implementable in user device

The present invention relates to mobile communication, and in particular to methods and limitations for user equipment (UE) configuration in subband-full duplex (SBFD) networks. .

Unless otherwise stated, the methods mentioned in this section are not prior art to the claims listed below in this case, and are not admitted as prior art by virtue of being included in this section.

In wireless communications, such as fifth generation ( ^5th Generation, 5G) New Radio (NR) mobile communications based on the 3rd Generation Partnership Project (3GPP) specification, in non-overlapping ( In non-overlapping subband-fullduplex (SBFD) radio access network (RAN) deployment, time-division duplex (TDD) carrier (carrier) It is divided into uplink (UL) and downlink (downlink, DL) sub-bands, and different half-duplex (half-duplex) UEs in these sub-bands can transmit and receive at the same time. Intra-cell and inter-site interference include gNB self-interference and cross-link interference (CLI). CLI includes gNB/DL versus gNB-UL and UE/UL versus UE/DL. One or other type of interference suppression may require frequency guard bands (GB) between UL and DL sub-bands within separate symbols and slots. However, there are still some issues to be resolved.

One of the issues is the need to define scheduling constraints related to GB size. Another problem is that the enhanced UE will be required to achieve a certain degree of isolation between the upcoming reception in the DL sub-band and the UL sub-band transmission of the aggressor UE. Another issue is that if the link direction in a sub-band of a particular symbol or slot can be flipped from UL to DL or vice versa (e.g. due to dynamic scheduling), then all sub-bands can be used for the same link direction. As such, it is an open question whether these GB should be maintained or whether these GB can be allocated for transmission or reception. In other words, whether the schedule in this case is the same as the undivided symbols/slots is a question that needs to be resolved. Therefore, methods and limitations for solving UE configuration in SBFD networks are needed.

The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits, and advantages of the novel and non-obvious technologies described herein. Selected implementations are further described in the embodiments. Accordingly, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended to be used to determine the scope of the claimed subject matter.

One of the objectives of the present invention is to provide a solution or architecture to solve the above problems. In detail, the various architectures proposed by embodiments of the present invention can provide solutions involving methods and restrictions for UE configuration in SBFD networks. For example, the purpose of some architectures proposed by embodiments of the present invention is to limit the flexibility of frequency-domain partitioning in terms of the number of allowed sub-bands and the number of allowed partitioning configurations, respectively. The purpose of some architectures proposed by embodiments of the present invention is to reuse GB for allocation when the link direction in the sub-band of a specific symbol or time slot is flipped from UL to DL (or vice versa), This way all sub-bands are used for the same link direction (e.g. slots/symbols are not partitioned).

In one aspect, a wireless communication method involves UEs communicating in SBFD. The wireless communication method further involves the UE limiting the flexibility of the frequency domain sub-band partition in at least one symbol or time slot on at least one of the allowed number of sub-bands and the allowed number of partition configurations.

In another aspect, a wireless communication method involves UEs communicating in SBFD. The wireless communication method further involves switching a link direction of a sub-band or cluster of a symbol or a time slot from one of the UL and DL directions to the other of the UL and DL directions, so that all of the symbols or time slots When the sub-bands or clusters are used for the same link direction, the adjustable GB is reused in resource allocation. Among them, the resource block (RB) group in the sub-band or cluster is aggregated. ).

In another aspect, an apparatus implementable in user equipment (UE) includes a transceiver and a processor coupled to the transceiver. Transceivers are used to communicate wirelessly. The processor may communicate in the SBFD RAN and perform at least one of the following: (1) Limit frequency domain sub-bands within at least one symbol or time slot on at least one of the allowed number of sub-bands and the allowed number of partition configurations. Flexibility of band partitioning; and (2) when the link direction of a sub-band or cluster of a symbol or slot is switched from one of the UL and DL directions to the other of the uplink UL and DL directions , so that when all sub-bands or clusters of this symbol or time slot are used for the same link direction, the GB is reused in resource allocation.

It should be noted that although the description provided here is in the context of a specific radio access technology, network and network topology (such as the network and network topology of 5G/NR mobile communications), the proposed The concepts, architecture, and any variations/derivations may be implemented by or in other types of radio access technologies, networks, and network topologies, such as, but not Limited to, Long-Term Evolution (LTE), Advanced LTE (LTE-Advanced), Advanced LTE upgraded version (LTE-Advanced Pro), Internet-of-Things (IoT), Narrow Band Internet of Things (NB-IoT), Industrial Internet of Things (IIoT), Vehicle-to-everything (V2X), and non-terrestrial network (NTN) communications. Therefore, the scope of the present disclosure is not limited to the examples described herein.

Examples and implementations of the claimed subject matter are disclosed herein. However, it should be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matter, which may be implemented in various forms. The invention may be embodied in many different forms and should not be limited to the example embodiments and implementations set forth herein. Rather, these example embodiments and implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Well-known features and techniques may be omitted from the following description to avoid unnecessarily obscuring the presented embodiments and implementations. Overview

Embodiments of the present invention relate to various technologies, methods, architectures, and/or solutions related to methods and limitations for UE configuration in SBFD networks. According to embodiments of the present invention, multiple possible solutions can be implemented separately or jointly. In other words, although these possible solutions may be described separately below, at least two of these possible solutions may be implemented in one or other combinations.

In this disclosure, the term "subband" or "cluster" may refer to a group of contiguous resource blocks (RBs) that share the same link direction. The term "group of RBs" or "RB set" may refer to a group of contiguous RBs in a carrier and should be consistent with the 3GPP Release 17 (R17) specification for new radio unlicensed bands. (unlicensed band, NR-U) is separated from the existing concept "RB sets", which is used for broadband operations on a shared spectrum. In R17, the concept of cluster availability is based on listen-before-talk, whereas in R18 cluster availability for transmission or reception is based on a periodic subband layout pattern. In R17, all UEs use the same cluster availability, however in R18 the cluster configuration may be different for each UE. In addition, R17 does not allow discontinuous cluster operations, however, discontinuous cluster operations need to be supported in R18. In addition, R18 assumes that legacy UE (time-division duplexing, TDD) and enhanced UE (SBFD sensing) coexist. The term "CLI" means cross-link interference (e.g. UE/UL to UE/DL, gNB/DL to gNB/UL). The term "SIC" refers to self-interference cancellation at the gNB side. The term "CC" refers to the process of carrier aggregation (CA) or A component carrier in a multi-carrier duplex scenario. The term "RateMatchPattern" refers to the 3GPP standard used to define a frequency-time region on network resources and the repetition of this region. A concept (called a mode) of network resources that does not include network resources for DL transmissions scheduled in overlapping areas. In order to deliver the same payload with fewer resources, matching encodings are required Coding rate. The term "active UE DL cluster" refers to the clusters that can be scheduled for the UE in a given time slot when the UE is receiving. The term "active UE UL cluster" refers to the cluster when the UE is receiving When transmitting, the clusters that can be scheduled for the UE in a given time slot. The term "enabled UE cluster" refers to any DL or UL cluster that can be scheduled for the UE in a given time slot.

Figure 1 illustrates an exemplary network environment 100 in which various architectures proposed by the present invention can be implemented. Figures 2 to 7 illustrate exemplary implementations of various proposed architectures in the network environment 100 according to embodiments of the present invention. Various proposed architectures are described below with reference to Figures 1 to 7.

Referring to FIG. 1 , the network environment 100 may involve a user equipment (UE) 110 that communicates wirelessly with a radio access network (RAN) 120 (such as a 5G NR mobile network or other types of networks such as NTN). Communication. The UE 110 may wirelessly communicate with the RAN 120 through a base station or a network node 125 (such as an eNB, a gNB, or a transmit-receive point (TRP)). The RAN 120 may be a network 130 (also known as a wireless network). 130 and cell 130). As described below, in the network environment 100, the UE 110 and the network 130 (via the network node 125 of the RAN 120) can implement the configuration for the UE in the SBFD network. methods and limitations of various architectures. It should be noted that although multiple proposed architectures, options, and methods may be described individually below, in actual applications, these proposed architectures, options, and methods may be used separately or jointly. Implementation. That is, in some cases, at least one of the proposed architectures, alternatives, and methods may each be implemented individually or separately. In other cases, some or all of the proposed architectures, alternatives, and Methods can be implemented jointly.

For a component carrier (CC) in the licensed band (licensed band), the UE can be configured with a channel resource block (CRB) according to the UE channel bandwidth and bandwidth part (BWP) configuration. A continuous range for DL reception and UL transmission. According to a study on non-overlapping subband-wise full duplex in the 3GPP technical specification Release 18 (R18), a base station (such as a gNB) can operate on non-overlapping frequencies in a given time slot Transmit and receive on sub-bands. The configuration of sub-bands that can be applied to a radio frame in a network/gNB is called a sub-band layout. At the base station (BS) side, transmit (Tx) and receive (Rx) sub-band selectivity can reduce DL-UL BS self-interference and BS-BW cross-link interference. In order to minimize latency and increase user-perceived throughput and/or coverage when operating in full-duplex deployment, new requirements are required for enhanced UEs. However, such requirements are currently yet to be defined. For legacy victim UEs, there can be two UE-UE CLI scenarios or situations depending on the DL BWP RB configuration of the UE with respect to the interfering UE UL outgoing RB. In the first scenario (Scenario 1), the interfering UL UE transmits in the stop-band of the victim UE receiver. Therefore, interference in each RB is reduced by the adjacent subband selectivity (ASBS) of the receiver. ASBS or adjacent subband leakage ratio (ASBLR) will become worse. In the second scenario (Scenario 2), the interfering UL UE transmits in the pass-band of the victim UE receiver. Therefore, the interference in each RB is reduced by the in-cell selectivity (ICS) of the receiver. In-channel selectivity will be the limiting factor compared to adjacent channel leakage ratio (ACLR) and/or ASBLR. The current 3GPP specifications (e.g. in 3GPP Technical Specification (TS) 38.101-1) appear to suggest that adjacent channel selectivity (ACS) and ACLR should be applied not only to the carrier, but also to the BWP , so that the minimum GB requirement can be met.

Generally speaking, a cluster consists of a set of contiguous, schedulable RBs. Like BWP size, cluster size can be described in terms of the number of RBs that can be scheduled. Adjacent UL and DL clusters are separated by GBs in a channel-like manner. In this disclosure, the term "sub-band" may be alternatively referred to as "cluster", but may also refer to a bandwidth including gigabytes in certain contexts (for example, when referring to nominal channel bandwidth).

In various proposed architectures of the present disclosure, for legacy UEs, UE channel configuration or BWP configuration is used to determine the selected cluster. However, transmit (Tx) and receive (Rx) selectivity are only assumed when standard channel sizes are selected. Therefore, the network configuration may be constrained to ensure that Tx and Rx inter-subband selectivity can be assumed for legacy UEs operating in the cell. The enhanced UE may or may not support enabling multiple clusters in a specific link direction in a specific time slot. For enhanced UE, new methods can be designed for cluster configuration. One extreme is for the cluster to select only one set of RBs (eg one/multiple RB groups). The other extreme is that a cluster also has multiple attributes that manage allocations, similar to attributes of BWP (e.g. one/more enabled BWP). Solutions between the two extremes are available. In addition, the network and enhanced UE will need to support fast reconfiguration of sub-band partitions between subsequent time slots.

Under the architecture related to sub-band layout configuration proposed by the embodiment of the present invention, during initial access, the DL BWP (MIB-defined DL BWP) defined by the master information block (MIB) can be used as the initial DL sub-band. Under the proposed architecture, system information blocks (such as SIB1) can be used to support the configuration of multiple clusters. Alternatively or additionally, UE-specific radio resource control (RRC) configuration may be used to support configuration of multiple clusters.

Under the architecture proposed by the embodiment of the present invention, multiple inter-sub-band GBs and/or distributed enablement clusters in the DL or UL BWP of the UE may be restricted by 3GPP specifications and/or UE capability reporting. For example, the same limit on the number of GB can apply to DL as well as UL transmission. Alternatively or additionally, the same limit on the number of distributed clusters may apply to DL as well as UL transmissions. Optionally or additionally, limits can be applied to the number of distributed DL and UL enabled clusters. Alternatively or additionally, a set of sub-band layouts (with parameterized sub-band sizes) can be pre-defined in the 3GPP standard.

Under the architecture proposed by the embodiment of the present invention, changes in multiple GB frequency positions (positions) in the periodic sub-band layout mode and/or GB frequency positions between two adjacent time slots can be determined by 3GPP specifications and/or UE Capacity reporting limitations. For example, the number of GB positions between sub-bands may be limited to 1 (GBs on channel edges are not counted). Alternatively or additionally, inter-subband GB can be enabled or disabled between adjacent time slots, but cannot be moved or changed in frequency.

It should be noted that in the case where the cluster is simply an RB group in the CRB to physical resource block (PRB) mapping, the aggregation of this RB group can be performed freely, because the aggregation of this RB group is important for scheduling. Transparent. Optionally, a cluster can be opaque to scheduling and can require additional rules to aggregate respective allocations. Under the architecture proposed by the embodiment of the present invention, in the case of a localized cluster, when the GBs of a group of schedulable RBs completely overlap with the aggregated schedulable RBs, the group of schedulable RBs can be added. RB. Under another architecture proposed by the embodiment of the present invention, when the link directions of clusters that are adjacent and separated by GB are the same (for example, both are DL or both are UL), these GBs are replaced by schedulable RBs. , a regionalized cluster can be formed from this cluster that is adjacent and separated by GB.

Figure 2 illustrates an example scenario 200 under the architecture proposed by the embodiment of the present invention. Parts (A), (B), and (C) of Figure 2 show examples of clusters or RB groups for DL and UL transmission. Parts (B) and (C) of Figure 2 also show the use of GB. In scenario 200 it is assumed that the same sub-band layout will be repeated in every radio frame. Under the proposed architecture, the UE configuration method can involve enabling and/or disabling clustering in each time slot, and regionalized clustering can be applied in which all bandwidth can be used exclusively for DL or UL transmission. . With regionalized clusters, all RBs can become available for scheduling, and receiver filtering can protect the aggregate cluster. Note that a pattern can have up to two GBs in each time slot, and the location of these GBs does not change between the time slots in which these GBs are in effect.

Figure 3 illustrates an example scenario 300 under the architecture proposed by the embodiment of the present invention. In scenario 300, GB loses its effect because GB is no longer in effect across regionalized clusters. This actually involves switching the BS receiver filter and using a fast Fourier transform (FFT). As bandwidth increases, minimum GB limits will also need to be met.

Figure 4 illustrates an example scenario 400 under the architecture proposed by the embodiment of the present invention. In scenario 400, GB loses its effect because GB is no longer in effect across regionalized clusters. The intermediate GB will be merged into the RB that can be allocated. The BS receiver filter needs to be switched and the size of the FFT needs to be updated. As bandwidth increases, minimum GB limits will also need to be met. Example implementation

Figure 5 illustrates an example communication system 500 according to an embodiment of the present invention. The communication system 500 has at least an example device 510 and an example device 520. The device 510 and the device 520 can perform a variety of functions to implement the architecture, technology, process, and methods related to the methods and restrictions for UE configuration in the SBFD network according to the embodiment of the present invention, including the various proposed designs, concepts, Architectures, systems, and methods describe various architectures including network environment 100 and the processes described below.

Device 510 and device 520 may be part of an electronic device, which may be a network device or a UE (such as UE 110), such as a portable or mobile device, a wearable device, a vehicle device or a vehicle, Wireless communication device or computing device. For example, the device 510 and the device 520 may be used in a smartphone, a smart watch, a personal digital assistant, an electronic control unit (ECU) in a vehicle, a digital camera, or a computing device (eg, a tablet, laptop, etc.) computer or laptop). The device 510 and the device 520 may also be machine type apparatus. The machine type apparatus is, for example, an Internet of Things (IoT) device, such as an immobile or fixed device, a home device, or a roadside unit. unit, RSU), wired communication device or computing device. For example, the device 510 and the device 520 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. When implemented in or as a network device, device 510 and/or device 520 may be an eNodeB in an LTE, LTE-Advanced or LTE-Advanced Pro network. , or implemented in gNB or TRP in 5G network, NR network or IoT network.

In some embodiments, the device 510 and the device 520 may be implemented in the form of one or more integrated circuit (IC) chips, such as but not limited to at least one single-core processor, at least one multi-core processor, At least one complex-instruction-set-computing (CISC) processor, or at least one reduced-instruction-set-computing (RISC) processor. Under various described architectures, device 510 and device 520 may be implemented in or as a network device or UE. Device 510 and device 520 may include at least some of the elements shown in Figure 5, such as processor 512 and processor 522, respectively. The device 510 and the device 520 may further include at least one other component (such as an internal power supply, a display device, and/or a user interface device) that is not related to the architecture proposed by the present invention. Therefore, for the sake of simplicity, the device 510 and the device 520 These components are not shown in Figure 5 and are not described below.

In one aspect, the processor 512 and the processor 522 may be implemented in the form of at least one single-core processor, at least one multi-core processor, or at least one CISC processor or RISC processor. That is, although processor 512 and processor 522 are described herein in the singular "processor," processor 512 and processor 522 may include multiple processors in some implementations of the invention and a single processor in other implementations of the invention. processor. In other aspects, the processor 512 and the processor 522 may be implemented in the form of hardware (optionally, and firmware) using electronic components, such as, but not limited to, configured and arranged to achieve specific embodiments of the present invention. The object is at least one transistor, at least one diode, at least one capacitor, at least one resistor, at least one inductor, at least one memristor and/or at least one varactor. In other words, in at least some implementations, processor 512 and processor 522 are specifically designed, arranged, and configured to perform specific tasks, including methods and limitations regarding embodiments of the present invention for UE configuration in SBFD networks. Machinery for special purposes.

In some embodiments, the device 510 further includes a transceiver 516 coupled to the processor 512 . Transceiver 516 is capable of transmitting and receiving data wirelessly. In some embodiments, the transceiver 516 is capable of wirelessly communicating with different types of wireless networks of different radio access technologies (RATs). In some embodiments, the transceiver 516 may have multiple antenna ports (not shown), such as four antenna ports. That is, the transceiver 516 may have multiple transmit antennas and multiple receive antennas for multiple-input multiple-output (MIMO) wireless communications. In some implementations, device 520 may further include a transceiver 526 coupled to processor 522 . Transceiver 526 may include a transceiver capable of transmitting and receiving data wirelessly. In some embodiments, the transceiver 526 is capable of wirelessly communicating with different types of UEs/wireless networks in different RATs. In some embodiments, the transceiver 526 may have multiple antenna ports (not shown), such as four antenna ports. That is, the transceiver 526 may have multiple transmit antennas and multiple receive antennas for MIMO wireless communication.

In some embodiments, the device 510 may further include a memory 514 coupled to the processor 512 and capable of being accessed by the processor 512 and storing data therein. In some embodiments, the device 520 may further include a memory 524 coupled to the processor 522 and capable of being accessed by the processor 522 and storing data therein. Memory 514 and memory 524 may include a random-access memory (RAM), such as dynamic RAM (DRAM), static RAM (SRAM), thyristor RAM ( T-RAM), and/or zero-capacitor RAM (zero-capacitor RAM, Z-RAM). Alternatively or additionally, memory 514 and memory 524 may include a read-only memory (ROM), such as mask ROM (mask ROM), programmable ROM (programmable ROM, PROM), Erasable programmable ROM (erasable programmable ROM, EPROM), and/or electrically erasable programmable ROM (electrically erasable programmable ROM, EEPROM). Alternatively or additionally, the memory 514 and the memory 524 may include a non-volatile random-access memory (NVRAM), such as flash memory or solid-state memory. Solid-state memory, ferroelectric RAM (FeRAM), magnetoresistive RAM (MRAM), and/or phase-change memory.

The device 510 and the device 520 may be communication entities capable of communicating with each other using various architectures proposed by embodiments of the present invention. By way of example and not limitation, the following describes a device 510 as a UE (eg, UE 110) and a device as a network node (eg, network node 125) of a network (eg, network 130 as a 5G/NR mobile network) 520 capacity.

Under the multiple proposed architectures of embodiments of the present invention regarding methods and limitations for UE configuration in SBFD networks, the processor 512 of the device 510 implemented in or in the form of the UE 110 can be configured by Transceiver 516 communicates in the SBFD RAN of a network, such as network 130 via device 520 as network node 125. Additionally, the processor 512 may, via the transceiver 516, limit the adjustability of the frequency-domain sub-band partitioning within at least one symbol or time slot on at least one of an allowed number of sub-bands and an allowed number of partition configurations ( flexibility).

In some embodiments, in terms of limitations, the processor 512 may limit at least one of: (a) the number of inter-subband GBs; and (b) at least one distributed enabled cluster in the DL or UL BWP of the UE. In some embodiments, the same limit may be applied to the number of inter-sub-band GBs in both DL and UL directions. Optionally or in addition, the same limit may be applied to the number of enabled clusters for at least one distribution in the DL and UL directions. Alternatively or additionally, when limiting at least one distributed enabled cluster, processor 512 may limit the number of distributed DL and UL enabled clusters. Alternatively or additionally, when limiting, process 600 may involve processor 512 performing limitations based on a predefined set of sub-band layouts.

In some embodiments, when limiting, the processor 512 may limit at least one of the following: (a) the number of GB frequency locations in the periodic sub-band layout pattern; and (b) the number of GBs between two adjacent time slots. Change in frequency position. In some embodiments, when limiting, processor 512 may limit the number of inter-subband GBs to one. In some embodiments, when limiting, processor 512 may enable inter-subband GB locations between at least one adjacent time slot. Optionally, when limiting, processor 512 may disable inter-subband GB locations between at least one adjacent time slot.

Under other proposed architectures related to methods and restrictions for UE configuration in SBFD networks in embodiments of the present invention, the processor 512 of the device 510 (implemented as the UE 110 or implemented in the UE 110) can transmit and receive Device 516 communicates in the SBFD RAN of a network (eg, network 130 via device 520 as network node 125). In addition, when the link direction of sub-bands or clusters of a symbol or time slot is switched from one of the UL and DL directions to the other of the UL and DL directions, such that all sub-bands or clusters of the symbol or time slot use In the same link direction, the processor 512 can reuse the GB in resource allocation through the transceiver 516. Groups of resource blocks (RBs) in sub-bands or clusters may be aggregated.

In some embodiments, GBs responding to a set of schedulable RBs that each fully overlap the aggregated schedulable RBs of the regionalized cluster may join the set of schedulable RBs.

In some embodiments, in response to the respective link directions becoming the same by replacing GBs with schedulable RBs, regionalized clusters may be composed of adjacent clusters separated by GBs. Sample process

Figure 6 is an example process 600 of an embodiment of the present invention. The process 600 may represent an aspect of implementing the various designs, concepts, architectures, systems, and methods proposed above, including part or all of the content related to the above. In detail, process 600 may represent one aspect of the proposed concepts and architecture regarding methods and limitations for UE configuration in SBFD networks. Process 600 may include at least one operation, action, or function illustrated by at least one of block 610 and block 620. Although illustrated as separate blocks, the various blocks of process 600 may be divided into more blocks, combined into fewer blocks, or eliminated depending on the desired implementation. In addition, the blocks/sub-blocks of process 600 may be executed in the order shown in FIG. 6 or in a different order. In addition, at least one block/sub-block of process 600 may be executed repeatedly. The process 600 and any variations thereof may be implemented by or in the devices 510 and 520 . For illustration only and not to limit the scope of the present invention, the process 600 below assumes that the device 510 serves as a UE (eg, UE 110), and the device 520 serves as a network, such as a network (eg, network 130 as a 5G/NR mobile network). Described in the context of a communication entity of a node or base station (eg, network node 125). Process 600 may begin at block 610.

At block 610 , process 600 may involve processor 512 of device 510 communicating via transceiver 516 in an SBFD RAN of a network (eg, network 130 via device 520 as network node 125 ). Flow 600 may proceed from block 610 to block 620.

At block 620 , process 600 may involve processor 512 , via transceiver 516 , limiting frequency domain subband partitioning within at least one symbol or time slot on at least one of an allowed number of subbands and an allowed number of partition configurations. Adjustability.

In some embodiments, in terms of limiting, process 600 may involve processor 512 limiting at least one of: (a) the number of inter-sub-band GBs; and (b) at least one distributed enabled cluster in the DL or UL BWP of the UE . In some embodiments, the same limit may be applied to the number of inter-sub-band GBs in both DL and UL directions. Optionally or in addition, the same limit may be applied to the number of enabled clusters for at least one distribution in the DL and UL directions. Alternatively or additionally, when limiting at least one distributed enabled cluster, process 600 may involve processor 512 limiting the number of distributed DL and UL enabled clusters. Alternatively or additionally, when limiting, process 600 may involve processor 512 performing limitations based on a predefined set of sub-band layouts.

In some embodiments, when limiting, process 600 may involve processor 512 limiting at least one of: (a) the number of GB frequency locations in a periodic sub-band layout pattern; and (b) the number of GB frequency locations between two adjacent time slots. The change of GB frequency position between. In some embodiments, when limiting, process 600 may involve processor 512 limiting the number of inter-subband GBs to one. In some embodiments, when limiting, process 600 may involve processor 512 enabling inter-subband GB locations between at least one adjacent time slot. Optionally, when limiting, process 600 may involve processor 512 disabling inter-sub-band GB locations between at least one adjacent time slot.

Figure 7 is an example process 700 of an embodiment of the present invention. The process 700 may represent an aspect of implementing the various designs, concepts, architectures, systems, and methods proposed above, including part or all of the content related to the above. In detail, process 700 may represent one aspect of the proposed concepts and architecture regarding methods and limitations for UE configuration in SBFD networks. Process 700 may include at least one operation, action, or function illustrated by at least one of block 710 and block 720 . Although illustrated as separate blocks, the various blocks of process 700 may be divided into more blocks, combined into fewer blocks, or eliminated depending on the desired implementation. In addition, the blocks/sub-blocks of process 700 may be executed in the order shown in FIG. 7 or in a different order. In addition, at least one block/sub-block of process 700 may be executed iteratively. The process 700 and any variations thereof may be implemented by or in the devices 510 and 520 . For illustration only and not to limit the scope of the present invention, the following process 700 assumes that the device 510 serves as a UE (eg, UE 110), and the device 520 serves as a network, such as a network (eg, network 130 as a 5G/NR mobile network). Described in the context of a communication entity of a node or base station (eg, network node 125). Process 700 may begin at block 710.

At block 710 , process 700 may involve processor 512 of device 510 communicating via transceiver 516 in an SBFD RAN of a network (eg, network 130 via device 520 as network node 125 ). Flow 700 may proceed from block 710 to block 720 .

At block 720 , the process 700 may involve the processor 512 switching, via the transceiver 516 , from one of the UL and DL directions to the other of the UL and DL directions in the link direction of the sub-band or cluster of symbols or time slots. Or, when all sub-bands or clusters of a symbol or time slot are used for the same link direction, the GB is reused in resource allocation. Groups of resource blocks (RBs) in sub-bands or clusters may be aggregated.

In some embodiments, GBs responding to a set of schedulable RBs that each fully overlap the aggregated schedulable RBs of the regionalized cluster may join the set of schedulable RBs.

In some embodiments, in response to the respective link directions becoming the same by replacing GBs with schedulable RBs, regionalized clusters may be composed of adjacent clusters separated by GBs. Other considerations

The subject matter described herein sometimes illustrates different elements contained within or connected to different other elements. It should be understood that the architectures described are examples only, and that many other architectures may be implemented that achieve the same functionality. In a conceptual sense, any arrangement of components used to achieve the same function is equivalently "associated" so as to achieve the desired function. Therefore, any two components combined to achieve a specific function in this article can be seen as "associated" with each other to achieve the desired function, regardless of the architecture or intermediary components. Likewise, any two elements so associated may also be deemed to be "operably connected" or "operably coupled" to each other to achieve the desired function, and any two elements so associated may also be considered Considered to be "operably coupled" to each other to achieve the desired functionality. Specific examples of operably coupled include, but are not limited to, elements that can physically mate and/or physically interact and/or elements that can interact wirelessly and/or interact wirelessly and/or logically interact and/or Components that can logically interact.

Furthermore, with respect to any plural and/or singular terms used herein, those skilled in the art may translate from the plural to the singular and/or from the singular to the plural as appropriate to the context and/or application. For the sake of clarity, various singular/plural permutations may be explicitly stated herein.

Furthermore, those skilled in the art will understand that generally terms used herein, and particularly in the appended claims (e.g., the subject matter of the appended claims), are generally intended to be "open-ended" terms, e.g., the term The term "includes" should be interpreted as "including but not limited to", the term "having" should be interpreted as "at least having", the term "including" should be interpreted as "including but not limited to", etc. It will also be understood by those skilled in the art that if a specific number in an introduced claim is intended, such intention will be expressly stated in the claim, and in the absence of such recitation no such intention exists . For example, to aid understanding, the claims appended below may include the use of the introductory phrases "at least one" and "one or more" to introduce claim statements. However, the use of such a phrase should not be taken to imply that a claim statement introduced by the indefinite article "a" or "an" limits any particular claim containing such an introduced claim statement to implementations containing only one such statement. , even if the same claim includes the introductory phrase "one or more" or "at least one" and an indefinite article such as "a" or "an" (e.g., "a" or "an" should be interpreted to mean " at least one" or "one or more"); the same is true for the use of the definite article used to refer to the claim statement. Furthermore, even if a specific number of a cited claim statement is expressly stated, one skilled in the art will recognize that such statement should be construed to mean at least the stated number, such as a bare statement of "two statements" in Without other modifiers it means at least two statements, or two or more statements. Furthermore, in those instances where a convention similar to "at least one of A, B, and C, etc." is used, typically the syntactic structure is intended to enable those skilled in the art to understand the convention, such as "having A, B , and at least one of C" shall include, but is not limited to, systems with A alone, B alone, C alone, A and B, A and C, B and C, and/or A, B, and C etc. system. In those instances where a convention similar to "at least one of A, B, or C, etc." is used, generally the syntactic structure is intended to enable those skilled in the art to understand the convention, such as "having A, B , or a system that is at least one of C" shall include, but is not limited to, a system with A alone, B alone, C alone, A and B, A and C, B and C, and/or A, B, or It is a system such as C. Those skilled in the art will also understand that, in fact, any transition words and/or phrases presenting two or more alternative words (whether in the description, claims or drawings) should be understood to mean, Possibilities include one, either, or both of these terms are contemplated. For example, the phrase "A or B" should be understood to include the possibilities of "A" or "B" or "A and B."

From the foregoing, it should be understood that various implementations of the disclosure have been described for purposes of illustration and that various modifications may be made without departing from the scope and spirit of the disclosure. Accordingly, the various implementations disclosed herein are not intended to be limiting, and the true scope and spirit are indicated by the following claims.

100:Network environment 110: User Equipment (UE) 120: Radio Access Network (RAN) 125:Network node 130:Network/Wireless Network/Community 200,300,400: Situation 500:Communication system 510,520:Device 512,522: Processor 514,524: memory 516,526:Transceiver 600,700:Process 610,620,710,720:block

The accompanying drawings are used to allow people to better understand the present disclosure, and are incorporated into the present disclosure and constitute a part of the present disclosure. The drawings illustrate embodiments of the invention and, together with the description, explain the principles of the invention. It is to be understood that the drawings are not necessarily to scale and that some elements may be shown disproportionately in size to actual implementation in order to clearly illustrate the concepts of the invention. Figure 1 is an exemplary network environment in which various architectures proposed by the present invention can be implemented. Figure 2 shows an example scenario under the architecture proposed by the present invention. Figure 3 shows an example scenario under the architecture proposed by the present invention. Figure 4 shows an example scenario under the architecture proposed by the present invention. Figure 5 is a block diagram of an exemplary communication system according to an embodiment of the present invention. Figure 6 is a flow chart of an exemplary process of an embodiment of the present invention. Figure 7 is a flow chart of an exemplary process of an embodiment of the present invention.

100:Network environment

110: User Equipment (UE)

120: Radio Access Network (RAN)

125:Network node

130:Network/Wireless Network/Community

Claims (20)

A wireless communication method including: communicating in a sub-band full duplex (SBFD) radio access network (RAN) by a processor of a user equipment (UE); and The processor limits the flexibility of frequency domain sub-band partitions within at least one symbol or time slot on at least one of an allowed number of sub-bands and an allowed number of partition configurations. As in the method of claim 1, the restricted operation includes restricting at least one of the following: The number of inter-sub-band guard bands (GB); and At least one distributed enabled cluster in a downlink (DL) or uplink (UL) bandwidth part (BWP) of the user equipment. The method of claim 2, wherein the same limit is applied to the number of guard bands between the sub-bands in the downlink and uplink directions. The method of claim 2, wherein the same limit is applied to the number of enabled clusters for the at least one distribution in both downstream and upstream directions. The method of claim 2, wherein the operation of limiting the enabled clusters of the at least one distribution includes limiting the number of downstream and upstream enabled clusters of the distribution. The method of claim 2, wherein the limiting operation includes limiting based on a predefined set of sub-band layouts. As in the method of claim 1, the restricted operation includes restricting at least one of the following: A number of guard band (GB) frequency locations in a periodic sub-band layout; and A change in the frequency position of this guard band between two adjacent time slots. The method of claim 7, wherein the limiting operation includes limiting the number of inter-sub-band guard band positions to 1. The method of claim 7, wherein the limiting operation includes enabling at least one inter-sub-band guard band position between adjacent time slots. The method of claim 7, wherein the limiting operation includes disabling at least one inter-sub-band guard band position between adjacent time slots. A wireless communication method including: communicating in a sub-band full duplex (SBFD) radio access network (RAN) by a processor of a user equipment (UE); and by the processor switching from one of the uplink (UL) and downlink (DL) directions to the uplink (UL) and downlink (DL) directions when a link direction of a sub-band or cluster of a symbol or a time slot is switched The other one is to reuse the guard band (GB) in resource allocation by the processor when all sub-bands or clusters of the symbol or time slot are used in the same link direction; Wherein, the resource block (RB) group in the sub-band or the cluster is aggregated. The method of claim 11, wherein the guard bands corresponding to a set of schedulable resource blocks respectively completely overlap with the aggregated schedulable resource blocks of the regionalized cluster, adding the set of schedulable resource blocks. . The method of claim 11, wherein in response to replacing the guard bands with schedulable resource blocks so that their respective link directions become the same, adjacent clusters form a regionalized cluster, and the adjacent clusters are separated by this guard band. A device that can be implemented in a user equipment (UE), including: a transceiver for wireless communication; and A processor is coupled to the transceiver, and the processor is used to perform a plurality of operations through the transceiver. The operations include: Communicate within a subband full duplex (SBFD) radio access network (RAN); and Do at least one of the following: Limiting the flexibility of frequency-domain sub-band partitioning within at least one symbol or time slot on at least one of an allowed number of sub-bands and an allowed number of partition configurations; and When a link direction of a sub-band or cluster of a symbol or time slot is switched from one of the uplink (UL) and downlink (DL) directions to the other of the uplink (UL) and downlink (DL) directions , so that when all sub-bands or clusters of the symbol or time slot are used in the same link direction, the processor reuses the guard band (GB) in resource allocation; Wherein, the resource block (RB) group in the sub-band or the cluster is aggregated. The device of claim 14, wherein the restricted operation includes restricting at least one of the following: The number of inter-sub-band guard bands (GB); and At least one distributed enabled cluster in a downlink (DL) or uplink (UL) bandwidth part (BWP) of the user equipment. Such as the device of claim 15, wherein: Apply the same limit to the number of guard bands between the sub-bands in both the downlink and uplink directions; or The same limit applies to the number of enabled clusters for the at least one distribution in both the downstream and upstream directions; or Limiting the cluster-enabled operation of the at least one distribution includes limiting the number of downstream and upstream enabled clusters of the distribution; or The operation of limiting includes limiting based on a predefined set of sub-band layouts. The device of claim 14, wherein the restricted operation includes restricting at least one of the following: A number of guard band (GB) frequency locations in a periodic sub-band layout; and A change in the frequency position of this guard band between two adjacent time slots. Such as the device of claim 17, wherein: Restricted operations include limiting the number of guard band positions between sub-bands to 1; or The restricted operation includes enabling or disabling at least one of the inter-sub-band guard band locations between adjacent time slots. The device of claim 14, wherein the guard bands corresponding to a set of schedulable resource blocks respectively completely overlap with the aggregated schedulable resource blocks of the regionalized cluster, adding the set of schedulable resource blocks. . The device of claim 14, wherein in response to replacing the guard bands with schedulable resource blocks so that respective link directions become the same, adjacent clusters form a regionalized cluster, and the adjacent clusters are separated by this guard band.