Reporting measurement results
Mini-subband CLI-RSSI measurements in SBFD systems address the challenge of cross-link interference, optimizing resource allocation and enhancing network performance by accurately assessing frequency domain interference.
Patent Information
- Application Number
- PCT/CN2024/077246
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-15
- Publication Date
- 2025-08-21
AI Technical Summary
The existing duplexing modes in 3GPP NR, such as TDD, result in reduced coverage, increased latency, and reduced capacity due to limited time duration allocation for uplink, while SBFD introduces new cross-link interference types that current measurement methods like CLI-RSSI fail to accurately reflect frequency domain interference, impacting resource allocation efficiency.
Implementing mini-subband CLI-RSSI measurements and reporting to determine interference levels within SBFD subbands, allowing for refined interference assessment and optimized resource allocation by network devices.
Enhances resource allocation efficiency by accurately measuring and mitigating cross-link interference, improving network performance and throughput, especially for cell-edge UEs.
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Figure CN2024077246_21082025_PF_FP_ABST
Abstract
Description
REPORTING MEASUREMENT RESULTSFIELD
[0001] Various example embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to methods, devices, apparatuses and computer readable storage medium for reporting measurement results in subband Sub-band full duplex (SBFD) scenario.BACKGROUND
[0002] Currently, the 3rd generation partnership project (3GPP) the new radio (NR) supports two duplexing modes: frequency division duplexing (FDD) for paired bands and time division duplexing (TDD) for unpaired bands. In TDD, the time domain resource is split between downlink (DL) and uplink (UL) . Allocation of a limited time duration for the uplink in TDD would result in reduced coverage, increased latency, and reduced capacity.
[0003] To address the challenges above, a study on the evolution of duplexing operation in NR has been initiated. The SBFD has been proposed as a scheme of an enhanced duplex operation. In the SBFD, simultaneous DL transmission and UL reception on different physical resource blocks (PRBs) within an unpaired wideband NR cell is allowed. The set of PRBs assigned to a specific link direction is known as subband and this new way of duplexing is denoted as SBFD. Further, this duplexing scheme is also referred to as cross-division duplexing (xDD) or flexible duplexing (FDU) .SUMMARY
[0004] In a first aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus at least to: determine size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband; perform measurements of interference on the at least one part of the subband based on the size information; and transmit, to a second apparatus, a measurement report based on a result of the measurements.
[0005] In a second aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus at least to: receive a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.
[0006] In a third aspect of the present disclosure, there is provided a method. The method comprises: determining size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband; performing measurements of interference on the at least one part of the subband based on the size information; and transmitting, to a second apparatus, a measurement report based on a result of the measurements.
[0007] In a fourth aspect of the present disclosure, there is provided a method. The method comprises: receiving a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.
[0008] In a fifth aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises means for determining size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband; means for performing measurements of interference on the at least one part of the subband based on the size information; and means for transmitting, to a second apparatus, a measurement report based on a result of the measurements.
[0009] In a sixth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for receiving a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.
[0010] In a seventh aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the third aspect.
[0011] In an eighth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fourth aspect.
[0012] It is to be understood that the Summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Some example embodiments will now be described with reference to the accompanying drawings, where:
[0014] FIG. 1A illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;
[0015] FIG. 1B illustrates a block of example duplexing modes;
[0016] FIG. 1C illustrates a block of example SBFD resources and non-SBFD resources;
[0017] FIG. 2A illustrates a communication environment comprising multiple co-channel cross-link interference types;
[0018] FIG. 2B illustrates histograms of user perceived throughput (UPT) for SBFD and TDD with different configurations;
[0019] FIG. 2C illustrates an example Cross-link interference Received Signal Strength Indicator (CLI-RSSI) measurements in SBFD;
[0020] FIG. 3 illustrates blocks of CLI-RSSI measurement resource in accordance with some embodiments of the present disclosure;
[0021] FIG. 4 illustrates an example flowchart of a method implemented at a first apparatus according to some example embodiments of the present disclosure;
[0022] FIG. 5 illustrates an example signalling flow of communication in accordance with some embodiments of the present disclosure;
[0023] FIG. 6 illustrates an example SBFD structure in accordance with some embodiments of the present disclosure;
[0024] FIG. 7 illustrates an example block of CLI-RSSI measurement resource;
[0025] FIG. 8 illustrates an example flowchart of a method implemented at a first apparatus according to some example embodiments of the present disclosure;
[0026] FIG. 9 illustrates an example flowchart of a method implemented at a second apparatus according to some example embodiments of the present disclosure;
[0027] FIG. 10 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure; and
[0028] FIG. 11 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
[0029] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0030] Principle of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. Embodiments described herein can be implemented in various manners other than the ones described below.
[0031] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0032] References in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0033] It shall be understood that although the terms “first, ” “second” and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0034] As used herein, “at least one of the following: <a list of two or more elements>” and “at least one of <a list of two or more elements>” and similar wording, where the list of two or more elements are joined by “and” or “or” , mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.
[0035] As used herein, unless stated explicitly, performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.
[0036] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.
[0037] As used in this application, the term “circuitry” may refer to one or more or all of the following:
[0038] (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and
[0039] (b) combinations of hardware circuits and software, such as (as applicable) :
[0040] (i) a combination of analog and / or digital hardware circuit (s) with software / firmware and
[0041] (ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and
[0042] (c) hardware circuit (s) and or processor (s) , such as a microprocessor (s) or a portion of a microprocessor (s) , that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
[0043] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
[0044] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) and the sixth generation (6G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
[0045] As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , an NR NB (also re ferred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology. In some example embodiments, radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node. An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.
[0046] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) . The terminal device may include, but not limited to, a mobile phone, a cel lular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. The terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node) . In the following description, the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
[0047] As used herein, the term “resource, ” “transmission resource, ” “resource block, ” “physical resource block” (PRB) , “uplink resource, ” or “downlink resource” may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other resource enabling a communication, and the like.
[0048] Example Environment
[0049] FIG. 1A illustrates an example communication environment 100A in which example embodiments of the present disclosure can be implemented. The communication environment 100A may include a first apparatus 110 and a second apparatus 120, and optionally include other first apparatus and second apparatus. A serving area provided by the second apparatus 120 is called a cell. Further, the second apparatus 120 can provide one or more cells.
[0050] In some example embodiments, the first apparatus 110 may be comprised in a terminal device / apparatus and the second apparatus 120 may be comprised in a network device / apparatus serving the terminal device / apparatus.
[0051] In the following, for the purpose of illustration, some example embodiments are described with the first apparatus 110 operating as a terminal apparatus and the second apparatus 120 operating as a network apparatus. However, in some example embodiments, operations described in connection with a terminal apparatus may be implemented at a network apparatus or other apparatus, and operations described in connection with a network apparatus may be implemented at a terminal apparatus or other apparatus.
[0052] In some example embodiments, if the first apparatus 110 is a terminal apparatus and the second apparatus 120 is a network apparatus, a link from the second apparatus 120 to the first apparatus 110 is referred to as a downlink (DL) , and a link from the first apparatus 110 to the second apparatus 120 is referred to as an uplink (UL) . In DL, the second apparatus 120 is a transmitting (TX) apparatus (or a transmitter) and the first apparatus 110 is a receiving (RX) apparatus (or a receiver) . In UL, the first apparatus 110 is a TX apparatus (or a transmitter) and the second apparatus 120 is a RX apparatus (or a receiver) .
[0053] Communications in the communication environment 110A may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , the fifth generation (5G) , the sixth generation (6G) , and the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and / or any other protocols currently known or to be developed in the future. Moreover, the communication may utilize any proper wireless communication technology, comprising but not limited to: Code Division Multiple Access (CDMA) , Frequency Division Multiple Access (FDMA) , Time Division Multiple Access (TDMA) , Frequency Division Duplex (FDD) , Time Division Duplex (TDD) , Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiple (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and / or any other technologies currently known or to be developed in the future.
[0054] Multiple duplexing modes may be supported in communication environment 100A. Reference is now made to FIG. 1B, which illustrates blocks 100B of three example duplexing modes, i.e., TDD, FDD and FDU (such as, SBFD) .
[0055] The FDD may be used for paired bands and TDD may be used for unpaired bands. In TDD, the time domain resource is split between DL and UL. Allocation of a limited time duration for the UL in TDD would result in reduced coverage, increased latency, and reduced capacity. The SBFD may be considered as an evolution of duplexing operation in NR. In particular, the SBFD may allow simultaneous DL and UL transmission on different physical resource blocks (PRBs) / sub-bands within an unpaired wideband NR cell, as illustrated in FIG. 1B.
[0056] In some embodiments, an SBFD slot may comprise both SBFD symbol (s) and non-SBFD symbol (s) .
[0057] For a better understanding, reference is now made to FIG. 1C, which illustrates a block 100C of SBFD resources and non-SBFD resources.
[0058] From the above description of SBFD operation, it may be observed that there are two slot types for both DL and UL transmissions as shown in FIG. 1C, namely:
[0059] ● Non-SBFD slots, during which the entire band is used for either DL or UL (i.e., legacy / full DL / UL slots) .
[0060] ● SBFD slots, during which the non-overlapping DL subbands and UL subband (s) both exist.
[0061] Several SBFD operation modes have been discussed including whether time and frequency locations of subbands for SBFD operation are known to the SBFD-aware user equipment (UE) or not. Further, it has been agreed that at least the operation mode with time and frequency locations of subbands for SBFD operation being known to the SBFD-aware UE is prioritized, which means that SBFD slots should be known by the (SBFD-aware) UE in one way or another.
[0062] Reference is now made to FIG. 2A, which illustrates a communication environment 200A comprising multiple co-channel cross-link interference types.
[0063] As illustrated in FIG. 2A, SBFD introduces some types of cross-link interference (CLI) , namely co-channel inter-subband CLI from non-overlapping frequency resources. This interference may be better classified depending on the source of the interference as below:
[0064] ● the next Generation Node B (gNB) self-interference,
[0065] ● intra-cell UE-to-UE co-channel inter-subband CLI,
[0066] ● inter-cell UE-to-UE co-channel inter-subband CLI,
[0067] ● gNB-to-gNB co-channel inter-subband CLI.
[0068] Besides these newly-introduced CLI types, in case of different frequency domain partitioning in neighbor cells, the system may also suffer from co-channel CLI from transmissions on overlapping frequency resources as bellow:
[0069] ● gNB-to-gNB inter-cell co-channel CLI from overlapping frequency resources,
[0070] ● UE-to-UE inter-cell co-channel CLI from overlapping frequency resources.
[0071] The importance of these interference types has been extensively studied by system-level simulations during the 3GPP study item.
[0072] Reference is now made to FIG. 2B, which illustrates histograms 200B of UPT for SBFD and TDD with different configurations.
[0073] In the scenario of UE-to-UE CLI measurements, the UEs are dropped in confined areas (also known as clusters) so that the UE-to-UE CLI is present. I t can be noted that any of the SBFD configurations (e.g., the third bar) shows lower DL throughput than the static TDD (e.g., first blue bar) . The DL performance degradation is specially noticeable on the 5th percentile, which represents the UEs deployed at the cell edge. One could think about a cell-edge UE transmitting in with high transmit power while another (nearby) cell-edge UE is receiving in DL. The CLI level in such case is quite high and significantly impacts the DL throughput of the cell-edge UE.
[0074] The serving gNB should be aware of the DL UE CLI conditions such that it can apply CLI mitigation schemes. Therefore, CLI measurements are needed for the optimal SBFD operation.
[0075] As part of the dynamic TDD standardization, 2 types of UE-to-UE cross-link interference measurements are under discussed. One consists of measuring the reference signal receiving power (RSRP) of a sounding reference signal (SRS) , also known as SRS-RSRP, and the other consists of measuring the received signal strength indication (RSSI) of a given set of resources, also known as CLI-RSSI.
[0076] Further, SRS-RSRP is defined as linear average of the power contributions (in [W]) of the resource elements carrying SRS. SRS-RSRP may be measured over the configured resource elements within the considered measurement frequency bandwidth in the configured measurement time occasions.
[0077] For frequency range 1 (FR 1) , the reference point for the SRS-RSRP may be the antenna connector of the UE. For frequency range 2 (FR 2) , SRS-RSRP may be measured based on the combined signal from antenna elements corresponding to a given receiver branch. For FR 1 and FR 2, if receiver diversity is in use by the UE, the reported SRS-RSRP value may not be lower than the corresponding SRS-RSRP of any of the individual receiver branches.
[0078] CLI received signal strength indicator (CLI-RSSI) is defined as linear average of the total received power (in [W] ) observed only in the configured orthogonal frequency division multiplexing (OFDM) symbols of the configured measurement time resource (s) , in the configured measurement bandwidth from all sources, including co-channel serving and non-serving cells, adjacent channel interference, thermal noise etc.
[0079] For FR 1, the reference point for the RSSI shall be the antenna connector of the UE. For FR 2, CLI-RSSI shall be measured based on the combined signal from antenna elements corresponding to a given receiver branch. For FR 1 and FR 2, if receiver diversity is in use by the UE, the reported CLI-RSSI value shall not be lower than the corresponding CLI-RSSI of any of the individual receiver branches.
[0080] Reference is now made to FIG. 2C, which illustrates an example CLI-RSSI measurements 200C in SBFD.
[0081] Current CLI RSSI or RSSI is based on linear average of the total received power (in [W] ) observed only in the configured OFDM symbols of the configured measurement time resource (s) , in the configured measurement bandwidth from all sources, including co-channel serving and non-serving cells, adjacent channel interference, thermal noise etc.
[0082] In the example of FIG. 2C, configured CLI-RSSI measurement bandwidth is UL Subband, UE4, 5, 6 measure RSSI CLI (density define the CLI-RSSI impact level) in different location. They have similar measurement results due to the measurement is based on the bandwidth or DL / UL subband.
[0083] After the linear average of the total received power, the total power is similar. So, it can only roughly reflect an overall interference situation. It cannot reflect the specific frequency domain interference, which will greatly affect the resource allocation performance of the network.
[0084] The present disclosure focuses on a more refined and accurate response to CLI-RSSI, and the network can more optimally allocate resources to improve the efficiency of the spectrum.
[0085] Work Principle and Example Signalling for Communication
[0086] According to some example embodiments of the present disclosure, there is provided a solution or measuring and reporting measurement report.
[0087] Reference is now made to FIG. 3 and FIG. 4, where FIG. 3 illustrates blocks of CLI-RSSI measurement resource 300 in accordance with some embodiments of the present disclosure, and FIG. 4 illustrates an example flowchart of a method 400 implemented at a first apparatus according to some example embodiments of the present disclosure.
[0088] In operation, the SBFD-aware UE performs mini-subband CLI-RSSI / RSSI measurement and reporting for the SBFD sub-band. As illustrated in FIG. 3, different UEs (UE 4 / 5 / 6) perform mini-subband measurement in different location. The difference in frequency domain CLI-RSSI across the mini-subbands is significant to these UEs. As used herein, ‘mini-subband’ is only used for simplicity and to avoid confusion with the concept of subband in SBFD, and thus should not be interpreted as any limitations to the present discourse.
[0089] According to some embodiments of the present disclosure, the sizes of mini-subband CLI-RSSI / RSSI may be defined based at least in part on SBFD DL / UL / GB subband bandwidths. For example, different mini-subband sizes (e.g., 3 different sizes) for the mini-subbands within the SBFD subbands for DL, UL and GB, respectively.
[0090] Alternatively, or in addition, the sizes of mini-subband CLI-RSSI / RSSI may be defined based at least in part on the location of the mini-subband with reference to the DL / GB subbands. For example, the closer is to the DL subband, the smaller size is the mini-subband in the SBFD UL subband. The reason for this approach is the need for finer granularity of the CLI-RSSI behaviors near the edge between guard bands (GBs) and DL subbands since the measurements represents the leakage that the UE is likely to experience in the DL subbands.
[0091] In some embodiments, the mini-subband CLI-RSSI may be only reported for the strongest (and or the weakest) mini-subband CLI-RSSI or the N (e.g., Top 3) strongest (and or weakest) mini-subband CLI-RSSI.
[0092] In some embodiments, the UE may report only one indication to NW for indicating whether the UE can do SBFD traffic.
[0093] In some embodiments, the UE may report a bitmap for indicating which mini-subbands are recommended by the UE for scheduling (e.g., for the mini-subbands within SBFD DL subband) .
[0094] In some embodiments, the UE may report one indication to NW which DL subbands (upper DL subband or lower DL subband) can be used.
[0095] Reference is now made to FIG. 4. At block 410, UE receives a configuration from the for determining that the CLI measurement and reporting in an SBFD subband is done via more than one mini-subband.
[0096] At block 420, UE determines the size of the mini-subband based, at least partly, on SBFD / DL / UL / GB subband bandwidths and / or the location of the mini-subband with reference to the DL / GB subbands.
[0097] At block 430, UE may report the mini-subband CLI based on the configuration, wherein the report includes at least one of: only the n mini-subbands with strongest CLI or only one bit for indicating whether the ue can perform SBFD on the SBFD subband or a bitmap for indicating which mini-subbands are recommended, or an indication of which dl-subband should be used.
[0098] It should be noted that the proposed concepts of mini-subbands CLI measurement and reporting may be applied to the mini-subbands within SBFD UL subband only, or within SBFD DL subbands only, or within the entire BWP (i.e., SBFD UL subband and SBFD DL subbands and Guardbands) .
[0099] In this way, the gNB can use mini-subband RSSI report to know the victim UEs frequency domain interference level and further the gNB may use the mini-subband RSSI report to optimize RSs resources allocation.
[0100] Reference is now made to FIG. 5, which illustrates a signalling flow 500 of communication in accordance with some embodiments of the present disclosure. For the purposes of discussion, the signalling flow 500 will be discussed with reference to FIGS. 1A to 1C, for example, by using the first apparatus 110 and the second apparatus 120.
[0101] It is to be understood that the operations at the first apparatus 110 and the second apparatus 120 should be coordinated. In other words, the second apparatus 120 and the first apparatus 110 should have common understanding about configurations, parameters and so on. Such common understanding may be implemented by any suitable interactions between the second apparatus 120 and the first apparatus or both the second apparatus 120 and the first apparatus 110-1 applying the same rule / policy.
[0102] In the following, although some operations are described from a perspective of the first apparatus, it is to be understood that the corresponding operations should be performed by the second apparatus 120. Similarly, although some operations are described from a perspective of the second apparatus 120, it is to be understood that the corresponding operations should be performed by the first apparatus. Merely for brevity, some of the same or similar contents are omitted here.
[0103] In addition, in the following description, examples of signalling type (such as “RRC signalling” , “MAC CE” , “DCI” , “uplink control information, UCI” ) are only for the purpose of illustration without suggesting any limitations. In other example embodiments, any suitable message types may be used for the interaction between the first apparatus 110 and the second apparatus 120.
[0104] Merely for a better understanding, in the example of FIG. 5, the first apparatus 110 may be operated as a terminal apparatus and the second apparatus 120 may be operated as a network apparatus.
[0105] In some embodiments, the subband may be one of an uplink subband, a guard band or a downlink subband in a Sub-band full duplex (SBFD) slot.
[0106] In operation, the first apparatus 110 determines 520 size information for at least one part of a subband, where the size information at least comprises a size for the at least one part of the subband (such as, a mini-subband) , and the size is associated with at least one of a bandwidth of the subband or locations of the at least one part in the subband. In other words, the mini-subband sizes for the mini-subbands within SBFD UL subband may be based on the location of the mini-subband with reference to the DL / GB subbands and / or the mini-subband sizes in different SBFD subbands may be different.
[0107] In some embodiments, the first apparatus 110 determines the size information by itself. Alternatively, the first apparatus 110 receives the size information in a configuration from the second apparatus 120.
[0108] Then, the first apparatus 120 performs 530 measurements of interference on the at least one part of the subband based on the size information and transmits 540 a measurement report based on a result of the measurements to a second apparatus 120.
[0109] In some embodiments, the size information may indicate that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a sub-band full duplex (SBFD) slot.
[0110] In some embodiments, the size information may indicate that a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.
[0111] In some embodiments, the first subband is an uplink subband, and the second subband is a downlink subband, and the size of a part of a first subband may decrease as a distance between the part of the first subband and the second subband decreases.
[0112] In some embodiments, the measurement report comprises at least one of:
[0113] ● an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband,
[0114] ● indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband being larger than a strength threshold,
[0115] ● indications of all parts of the subband and interference strengths of all parts of the subband,
[0116] ● a first indication indicating whether the first apparatus 110 is allowed use a Sub- band full duplex (SBFD) slot,
[0117] ● a second indication indicating which subband is allowed to be used for SBFD traffic, or
[0118] ● a bitmap indicating which parts of the subband are recommended for scheduling.
[0119] As for the second apparatus, the second apparatus 120 may schedule 550 resources for the first apparatus 110 based on the measurement report.
[0120] In some embodiments, the second apparatus 120 may determine a frequency domain assignment for the first apparatus 110 by avoiding the first part of the subband, where the interference strength of the first part of the subband is the strongest one of all parts of the subband.
[0121] In some embodiments, the second apparatus 120 may determine a frequency domain assignment for the first apparatus 110 by avoiding a plurality of parts of the subband, where each of interference strengths of the plurality of parts of the subband exceeds a strength threshold.
[0122] In some embodiments, the second apparatus 120 may determine whether the first apparatus 110 is allowed use a Sub-band full duplex (SBFD) slot based on the first indication.
[0123] In some embodiments, the second apparatus 120 may determine which subband is allowed to be used for the SBFD traffic based on the second indication.
[0124] In some embodiments, the second apparatus 120 may determine which parts of the subband are to be scheduled for the first apparatus 110 based on the bitmap.
[0125] Optionally, as illustrated in FIG. 5, in some embodiments, the first apparatus 110 may receive 510 a configuration at least indicating the size information from the second apparatus 120.
[0126] In some embodiments, the configuration may further indicate at least one of the following:
[0127] ● a frequency band,
[0128] ● a number of Sub-band full duplex (SBFD) slots or symbols, or
[0129] ● a number of non-SBFD slots or symbols.
[0130] It should be understood, the configuration may comprise other parameters according to the specific scenario. The present disclosure is not limited in this regard.
[0131] Embodiments
[0132] For a better understanding, further example embodiments will be discussed as below.
[0133] In operation, the gNB may transmit resource configuration to the UE. Accordingly, UE may receive resource configuration from gNB. The resource configuration may indicate SBFD-related information. As one example embodiment, the resource configuration may indicate at least one of the following:
[0134] ● a frequency band;
[0135] ● a number of slots / symbols wherein the frequency band is split into multiple subbands and wherein at least one subband is used for DL transmissions and at least one subband is used for UL transmissions, i.e., SBFD slots / symbols, and locations of the number of slots / symbols in a radio frame;
[0136] ● a number of slots / symbols wherein the entire frequency band is used for DL transmissions or UL transmissions, i.e., non-SBFD slots / symbols, and locations of the number of slots / symbols in a radio frame.
[0137] In addition to the above information, other parameter also may be configured by the gNB. For example, the resource configuration may comprise a configuration at least indicating the size information from the second apparatus 120.
[0138] In the following more details about the subband CLI-RSSI / RSSI measurement configuration and Subband sizes configuration will be discussed.
[0139] In some embodiments, mini-Subband sizes in different SBFD subbands may be different. For example, SBFD is configured with a DUD structure, and the SBFD subband number of RBs refer to FIG. 6, which illustrates an example SBFD structure 600 in accordance with some embodiments of the present disclosure. In the example of FIG. 6, the mini-subband sizes may be defined in different SBFD SUBBAND. For example,
[0140] ● Upper DL subband CLI-RSSI mini-subband sizes is 6, where 6 means: every 6 RBs is one mini-subband. There is total 15 mini-subbands in the upper DL subband.
[0141] ● Upper GB subband CLI-RSSI mini-subband sizes is 3, where means: every 3 RBs is one mini-subband. There is total 2 mini-subbands in the upper GB subband.
[0142] ● UL subband CLI-RSSI mini-subband sizes is 8. There is total 13 mini-subbands.
[0143] ● Bottom GB subband CLI-RSSI mini-subband sizes is 2. There is total 2 mini-subbands.
[0144] ● Bottom DL subband CLI-RSSI mini-subband sizes is 5. There is total 15 mini-subbands.
[0145] In some embodiments, it may be predefined based on the total number of RBs. The example total has 15+2+13+2+15=45 (mini-subbands) .
[0146] In some embodiments, if the number of mini-subbands is not divisible, then the last (or first) one is rounded. Alternatively, in some embodiments, the mini-subband sizes for the mini-subbands within SBFD UL subband may be based on the location of the mini-subband with reference to the DL / GB subbands. In some embodiments, the closer is to the DL subband, the smaller is the mini-subband.
[0147] Reference is now made to FIG. 7, which illustrates an example block 700 of CLI-RSSI measurement resource. In the example of FIG. 7, the mini-subband size of the 6 RBs close to the GB / DL subband is small mini-subband sizes (e.g., 2RBs) , and the size of the other mini-subbands may be set separately (e.g., 8RBs, large mini-subband sizes) .
[0148] Then, the SBFD-aware UEs may start to send mini-subband CLI-RSSI / RSSI report, based on report types pre-defines or configured by an RRC message.
[0149] In some embodiments, the UE may report the strongest mini-subband CLI-RSSI, such as, the measurement report includes the mini-subband indication and the strongest CLI-RSSI value.
[0150] Alternatibely, the UE may report multi-mini-subbands CLI-RSSI. For example, the measurement report includes the subband (s) indication (e.g., bitmap) and the subbands CLI-RSSI value. In one example, one absolute threshold or one relative threshold for trigger mini-subbands report may be defined. Alternatively, the UE may report top N (e.g., top 3 ) strongest mini-subband CLI-RSSI.
[0151] Alternatively, in some embodiments, the UE may report all subbands CLI-RSSI value.
[0152] In some embodiments, the measurement results (such as, CLI-RSSI) may be either an absolute power value, or an addition of the absolute power value and an offset value.
[0153] Additionally, an indication may be configured by the network. In some embodiments, the indication may indicate whether the UE can use SBFD slots in the current environment. Alternatively, the indication may indicate which SBFD subband (s) can do SBFD traffic in current environment, e.g., only the upper DL subband or only the bottom DL subband or both.
[0154] In some embodiments, a bitmap for indicating which mini-subbands may be recommended by the UE for scheduling.
[0155] Then, based on UE’s mini-subband CLI-RSSI / RSSI report, the gNB may schedule RBs resources for minimum interference and NW performance.
[0156] In some embodiments, if the strongest mini-subband CLI-RSSI is reported, the NW may decide the frequency domain assignment for the UE to skip the strongest interference.
[0157] In some embodiments, if multi-mini-subbands CLI-RSSI is reported, the network may decide the frequency domain assignment for the UE to skip those strong interference.
[0158] In some embodiments, the NW may decide whether the UE can do SBFD traffic and the NW may configure an indication to indicate the decision to UE.
[0159] In some embodiments, NW may decide which resources for DL / UL schedule to the UE, and a bitmap may be used for indicating which mini-subbands are recommended.
[0160] Example Methods
[0161] FIG. 8 shows a flowchart of an example method 800 implemented at a first device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 800 will be described from the perspective of the first apparatus 110 in FIG. 1A.
[0162] At block 810, the first apparatus determines size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.
[0163] At block 820, the first apparatus performs measurements of interference on the at least one part of the subband based on the size information.
[0164] At block 830, the first apparatus transmits, to a second apparatus, a measurement report based on a result of the measurements.
[0165] In some example embodiments, the first apparatus may receive, from the second apparatus, a configuration at least indicating the size information.
[0166] In some example embodiments, the configuration further indicates at least one of the following: a frequency band, a number of Sub-band full duplex (SBFD) slots or symbols, or a number of non-SBFD slots or symbols.
[0167] In some example embodiments, the size information indicates that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a Sub-band full duplex (SBFD) slot.
[0168] In some example embodiments, the size information indicates a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.
[0169] In some example embodiments, the first subband is an uplink subband, and the second subband is a downlink subband, and the size of a part of a first subband decreases as a distance between the part of the first subband and the second subband decreases.
[0170] In some example embodiments, the measurement report comprises at least one of: an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband, indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband being larger than a strength threshold, indications of all parts of the subband and interference strengths of all parts of the subband, a first indication indicating whether the first apparatus can use a Sub-band full duplex (SBFD) slot, a second indication indicating which subband can be used for SBFD traffic, or a bitmap indicating which parts of the subband are recommended for scheduling.
[0171] In some example embodiments, the subband is one of an uplink subband, a guard band, or a downlink subband in a Sub-band full duplex (SBFD) slot.
[0172] In some embodiments, the interference may be a cross-link interference received signal strength indicator (CLI-RSSI) in Sub-band full duplex (SBFD) .
[0173] In some example embodiments, the first apparatus comprises a terminal device, and the second apparatus comprises a network device.
[0174] FIG. 9 shows a flowchart of an example method 900 implemented at a second device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 900 will be described from the perspective of the second apparatus 120 in FIG. 1A.
[0175] At block 910, the second apparatus receives a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.
[0176] In some example embodiments, the second apparatus may transmit, to the first apparatus, a configuration at least indicating the size information.
[0177] In some example embodiments, the configuration further indicates at least one of the following: a frequency band, a number of Sub-band full duplex (SBFD) slots or symbols, or a number of non-SBFD slots or symbols.
[0178] In some example embodiments, the size information indicates that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a Sub-band full duplex (SBFD) slot.
[0179] In some example embodiments, the size information indicates a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.
[0180] In some example embodiments, the first subband is an uplink subband, and the second subband is a downlink subband, and the size of a part of a first subband decreases as a distance between the part of the first subband and the second subband decreases.
[0181] In some example embodiments, the second apparatus may schedule resources for the first apparatus based on the measurement report.
[0182] In some example embodiments, the measurement report comprises at least one of: an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband, indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband exceeding a strength threshold, indications of all parts of the subband and interference strengths of all parts of the subband , a first indication indicating whether the first apparatus can use a Sub-band full duplex (SBFD) slot, a second indication indicating which subband can be used for SBFD traffic, or a bitmap indicating which parts of the subband are recommended for scheduling .
[0183] In some example embodiments, the second apparatus may determine a frequency domain assignment for the first apparatus by avoiding the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband; determining a frequency domain assignment for the first apparatus by avoiding a plurality of parts of the subband, each of interference strengths of the plurality of parts of the subband exceeding a strength threshold; determining whether the first apparatus can use a Sub-band full duplex (SBFD) slot based on the first indication; determining which subband can be used for the SBFD traffic based on the second indication; or determining which parts of the subband are to be scheduled for the first apparatus based on the bitmap.
[0184] In some example embodiments, the subband is one of an uplink subband, a guard band or a downlink subband in a Sub-band full duplex (SBFD) slot.
[0185] In some embodiments, the interference may be a cross-link interference received signal strength indicator (CLI-RSSI) in Sub-band full duplex (SBFD) .
[0186] In some example embodiments, the first apparatus comprises a terminal device, and the second apparatus comprises a network device.
[0187] Example Apparatus, Device and Medium
[0188] In some example embodiments, a first apparatus capable of performing any of the method 800 (for example, the first apparatus 110 in FIG. 1A) may comprise means for performing the respective operations of the method 800. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The first apparatus may be implemented as or included in the first apparatus 110 in FIG. 1A.
[0189] In some example embodiments, the first apparatus comprises means for determining size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband; means for performing measurements of interference on the at least one part of the subband based on the size information; and means for transmitting, to a second apparatus, a measurement report based on a result of the measurements.
[0190] In some example embodiments, the first apparatus further comprises: means for receiving, from the second apparatus, a configuration at least indicating the size information.
[0191] In some example embodiments, the configuration further indicates at least one of the following: a frequency band, a number of Sub-band full duplex (SBFD) slots or symbols, or a number of non-SBFD slots or symbols.
[0192] In some example embodiments, the size information indicates that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a Sub-band full duplex (SBFD) slot.
[0193] In some example embodiments, the size information indicates a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.
[0194] In some example embodiments, the first subband is an uplink subband, and the second subband is a downlink subband, and the size of a part of a first subband decreases as a distance between the part of the first subband and the second subband decreases.
[0195] In some example embodiments, the measurement report comprises at least one of: an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband, indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband being larger than a strength threshold, indications of all parts of the subband and interference strengths of all parts of the subband, a first indication indicating whether the first apparatus can use a Sub-band full duplex (SBFD) slot, a second indication indicating which subband can be used for SBFD traffic, or a bitmap indicating which parts of the subband are recommended for scheduling.
[0196] In some example embodiments, the subband is one of an uplink subband, a guard band, or a downlink subband in a Sub-band full duplex (SBFD) slot.
[0197] In some embodiments, the interference may be a cross-link interference received signal strength indicator (CLI-RSSI) in Sub-band full duplex (SBFD) .
[0198] In some example embodiments, the first apparatus comprises a terminal device, and the second apparatus comprises a network device.
[0199] In some example embodiments, the first apparatus further comprises means for performing other operations in some example embodiments of the method 800 or the first apparatus 110. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the first apparatus.
[0200] In some example embodiments, a second apparatus capable of performing any of the method 900 (for example, the second apparatus 120 in FIG. 1A) may comprise means for performing the respective operations of the method 900. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The second apparatus may be implemented as or included in the second apparatus 120 in FIG. 1A.
[0201] In some example embodiments, the second apparatus comprises means for receiving a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.
[0202] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, a configuration at least indicating the size information.
[0203] In some example embodiments, the configuration further indicates at least one of the following: a frequency band, a number of Sub-band full duplex (SBFD) slots or symbols, or a number of non-SBFD slots or symbols.
[0204] In some example embodiments, the size information indicates that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a Sub-band full duplex (SBFD) slot.
[0205] In some example embodiments, the size information indicates a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.
[0206] In some example embodiments, the first subband is an uplink subband, and the second subband is a downlink subband, and the size of a part of a first subband decreases as a distance between the part of the first subband and the second subband decreases.
[0207] In some example embodiments, the second apparatus further comprises: means for scheduling resources for the first apparatus based on the measurement report.
[0208] In some example embodiments, the measurement report comprises at least one of: an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband, indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband exceeding a strength threshold, indications of all parts of the subband and interference strengths of all parts of the subband , a first indication indicating whether the first apparatus can use a Sub-band full duplex (SBFD) slot, a second indication indicating which subband can be used for SBFD traffic , or a bitmap indicating which parts of the subband are recommended for scheduling .
[0209] In some example embodiments, the second apparatus further comprises: determining a frequency domain assignment for the first apparatus by avoiding the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband; determining a frequency domain assignment for the first apparatus by avoiding a plurality of parts of the subband, each of interference strengths of the plurality of parts of the subband exceeding a strength threshold; determining whether the first apparatus can use a Sub-band full duplex (SBFD) slot based on the first indication; determining which subband can be used for the SBFD traffic based on the second indication; or determining which parts of the subband are to be scheduled for the first apparatus based on the bitmap.
[0210] In some example embodiments, the subband is one of an uplink subband, a guard band or a downlink subband in a Sub-band full duplex (SBFD) slot.
[0211] In some embodiments, the interference may be a cross-link interference received signal strength indicator (CLI-RSSI) in Sub-band full duplex (SBFD) .
[0212] In some example embodiments, the first apparatus comprises a terminal device, and the second apparatus comprises a network device.
[0213] In some example embodiments, the second apparatus further comprises means for performing other operations in some example embodiments of the method 900 or the second apparatus 120. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the second apparatus.
[0214] FIG. 10 is a simplified block diagram of a device 1000 that is suitable for implementing example embodiments of the present disclosure. The device 1000 may be provided to implement a communication device, for example, the first apparatus 110 or the second apparatus 120 as shown in FIG. 1A. As shown, the device 1000 includes one or more processors 1010, one or more memories 1020 coupled to the processor 1010, and one or more communication modules 1040 coupled to the processor 1010.
[0215] The communication module 1040 is for bidirectional communications. The communication module 1040 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interfaces may represent any interface that is necessary for communication with other network elements. In some example embodiments, the communication module 1040 may include at least one antenna.
[0216] The processor 1010 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 1000 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0217] The memory 1020 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 1024, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , an optical disk, a laser disk, and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a random access memory (RAM) 1022 and other volatile memories that will not last in the power-down duration.
[0218] A computer program 1030 includes computer executable instructions that are executed by the associated processor 1010. The instructions of the program 1030 may include instructions for performing operations / acts of some example embodiments of the present disclosure. The program 1030 may be stored in the memory, e.g., the ROM 1024. The processor 1010 may perform any suitable actions and processing by loading the program 1030 into the RAM 1022.
[0219] The example embodiments of the present disclosure may be implemented by means of the program 1030 so that the device 1000 may perform any process of the disclosure as discussed with reference to FIG. 2 to FIG. 9. The example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0220] In some example embodiments, the program 1030 may be tangibly contained in a computer readable medium which may be included in the device 1000 (such as in the memory 1020) or other storage devices that are accessible by the device 1000. The device 1000 may load the program 1030 from the computer readable medium to the RAM 1022 for execution. In some example embodiments, the computer readable medium may include any types of non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like. The term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
[0221] FIG. 11 shows an example of the computer readable medium 1100 which may be in form of CD, DVD or other optical storage disk. The computer readable medium 1100 has the program 1030 stored thereon.
[0222] Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. Although various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0223] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non-transitory computer readable medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program module s may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0224] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program code, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0225] In the context of the present disclosure, the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.
[0226] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0227] Further, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Unless explicitly stated, certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, unless explicitly stated, various features that are described in the context of a single embodiment may also be implemented in a plurality of embodiments separately or in any suitable sub-combination.
[0228] Although the present disclosure has been described in languages specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1.A first apparatus comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus at least to:determine size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or locations of the at least one part in the subband;perform measurements of interference on the at least one part of the subband based on the size information; andtransmit, to a second apparatus, a measurement report based on a result of the measurements.2.The first apparatus of claim 1, wherein the first apparatus is caused to:receive, from the second apparatus, a configuration at least indicating the size information.3.The first apparatus of claim 2, wherein the configuration further indicates at least one of the following:a frequency band,a number of Sub-band full duplex (SBFD) slots or symbols, ora number of non-SBFD slots or symbols.4.The first apparatus of any of claims 1 to 3, wherein the size information indicates that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a Sub-band full duplex (SBFD) slot.5.The first apparatus of any of claims 1 to 4, wherein the size information indicates that a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.6.The first apparatus of claim 5, wherein the first subband is an uplink subband, and the second subband is a downlink subband, andthe size of a part of a first subband decreases as a distance between the part of the first subband and the second subband decreases.7.The first apparatus of any of claims 1 to 6, wherein the measurement report comprises at least one of:an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband,indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband being larger than a strength threshold,indications of all parts of the subband and interference strengths of all parts of the subband,a first indication indicating whether the first apparatus can use a Sub-band full duplex (SBFD) slot,a second indication indicating which subband can be used for SBFD traffic, ora bitmap indicating which parts of the subband are recommended for scheduling.8.The first apparatus of any of claims 1 to 7, wherein the subband is one of an uplink subband, a guard band, or a downlink subband in a Sub-band full duplex (SBFD) slot.9.The first apparatus of any of claims 1 to 7, wherein the interference is a cross-link interference received signal strength indicator (CLI-RSSI) in Sub-band full duplex (SBFD) .10.The first apparatus of any of claims 1 to 8, wherein the first apparatus comprises a terminal device, and the second apparatus comprises a network device.11.A second apparatus comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus at least to:receive a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or locations of the at least one part in the subband.12.The second apparatus of claim 11, wherein the second apparatus is caused to:transmit, to the first apparatus, a configuration at least indicating the size information.13.The second apparatus of claim 12, wherein the configuration further indicates at least one of the following:a frequency band,a number of Sub-band full duplex (SBFD) slots or symbols, ora number of non-SBFD slots or symbols.14.The second apparatus of any of claims 11 to 13, wherein the size information indicates that a size of a part of a first subband is different from a size of a part of a second subband, the first subband and the second subband being associated with a Sub-band full duplex (SBFD) slot.15.The second apparatus of any of claims 11 to 14, wherein the size information indicates that a size of a part of a first subband is based on a location of the part of the first subband with reference to a second subband.16.The second apparatus of claim 15, wherein the first subband is an uplink subband, and the second subband is a downlink subband, andthe size of a part of a first subband decreases as a distance between the part of the first subband and the second subband decreases.17.The second apparatus of any of claims 11 to 16, wherein the second apparatus is caused to:schedule resources for the first apparatus based on the measurement report.18.The second apparatus of any of claims 11 to 17, wherein the measurement report comprises at least one of:an indication of a first part of the subband and an interference strength of the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband,indications of a plurality of parts of the subband and interference strengths of the plurality of parts of the subband, each of the interference strengths of the plurality of parts of the subband exceeding a strength threshold,indications of all parts of the subband and interference strengths of all parts of the subband,a first indication indicating whether the first apparatus can use a Sub-band full duplex (SBFD) slot,a second indication indicating which subband can be used for SBFD traffic, ora bitmap indicating which parts of the subband are recommended for scheduling.19.The second apparatus of claim 18, wherein the second apparatus is caused to perform at least one of:determining a frequency domain assignment for the first apparatus by avoiding the first part of the subband, the interference strength of the first part of the subband being the strongest one of all parts of the subband;determining a frequency domain assignment for the first apparatus by avoiding a plurality of parts of the subband, each of interference strengths of the plurality of parts of the subband exceeding a strength threshold;determining whether the first apparatus can use a Sub-band full duplex (SBFD) slot based on the first indication;determining which subband can be used for the SBFD traffic based on the second indication; ordetermining which parts of the subband are to be scheduled for the first apparatus based on the bitmap.20.The second apparatus of any of claims 11 to 19, wherein the subband is one of an uplink subband, a guard band or a downlink subband in a Sub-band full duplex (SBFD) slot.21.The second apparatus of any of claims 11 to 20, wherein the interference is a cross-link interference received signal strength indicator (CLI-RSSI) in Sub-band full duplex (SBFD) .22.The second apparatus of any of claims 11 to 21, wherein the first apparatus comprises a terminal device, and the second apparatus comprises a network device.23.A method comprising:determining, at a first apparatus, size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband;performing measurements of interference on the at least one part of the subband based on the size information; andtransmitting, to a second apparatus, a measurement report based on a result of the measurements.24.A method comprising:receiving, a second apparatus, a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.25.A first apparatus comprising:means for determining, at a first apparatus, size information for at least one part of a subband, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband;means for performing measurements of interference on the at least one part of the subband based on the size information; andmeans for transmitting, to a second apparatus, a measurement report based on a result of the measurements.26.A second apparatus comprising:means for receiving, a second apparatus, a measurement report from a first apparatus, the measurement report being based on a result of measurements of interference on at least one part of a subband based on size information, the size information at least comprising a size for the at least one part of the subband, the size being associated with at least one of a bandwidth of the subband or a location of the at least one part in the subband.27.A computer readable medium comprising instructions stored thereon for causing an apparatus at least to perform the method of claim 23 or claim 24.
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