Enabling UL transmissions in SBFD during SSB symbols
Patent Information
- Application Number
- PCT/CN2024/077080
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-08
- Publication Date
- 2026-08-27
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Figure CN2024077080_27082026_PF_FP_ABST
Abstract
Description
ENABLING UL TRANSMISSIONS IN SBFD DURING SSB SYMBOLS
[0001] FIELDS
[0002] 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 enabling uplink transmissions in subband non-overlapping full duplex during synchronization signal block symbols.BACKGROUND
[0003] In the field of wireless communications, subband non-overlapping full duplex (SBFD) allows for simultaneous transmission and reception in different frequency subbands, optimizing network capacity. Synchronization Signal Block (SSB) is essential for initial network synchronization and cell identification, a cornerstone in 5G networks. Meanwhile, the Synchronization Signal / Physical Broadcast Channel Block (SS / PBCH Block) combines synchronization signals with physical broadcast channel information, facilitating device connectivity and network access. These elements collectively underpin efforts to enhance spectrum utilization while ensuring robust signal integrity in the rapidly evolving wireless communication landscape. Therefore, it is worth studying on how to combine these technologies.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 to: receive, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; obtain a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; and perform, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[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 to:transmit, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; transmit, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; and receive, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.
[0006] In a third aspect of the present disclosure, there is provided a method. The method comprises: receiving, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; obtaining a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; and performing, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0007] In a fourth aspect of the present disclosure, there is provided a method. The method comprises: transmitting, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; transmitting, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; and receiving, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.
[0008] In a fifth aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises means for receiving, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; means for obtaining a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; and means for performing, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0009] In a sixth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for transmitting, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; means for transmitting, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; and means for receiving, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.
[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. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;
[0015] FIG. 2A to FIG. 2C illustrate schematic diagrams of examples of duplexing modes;
[0016] FIG. 3 illustrates a schematic diagram of an example of SBFD slots and non-SBFD slots;
[0017] FIG. 4 illustrates a schematic diagram of an example structure of SSB;
[0018] FIG. 5A to FIG. 5C illustrate schematic diagrams of SSB periodicity, SMTC periodicity and measurement gaps;
[0019] FIG. 6 illustrates a schematic diagram of co-channel interference between user equipment in adjacent subbands;
[0020] FIG. 7 illustrates a schematic diagram of an example situation in the SSB burst;
[0021] FIG. 8 illustrates a signaling flow of transmissions during SSB symbols in accordance with some example embodiments of the present disclosure.
[0022] FIG. 9 illustrates a schematic diagram of serving cell and neighbor cell measurements in accordance with some example embodiments of the present disclosure.
[0023] FIG. 10 illustrates a flowchart of a method implemented at a first device according to some example embodiments of the present disclosure;
[0024] FIG. 11 illustrates a flowchart of a method implemented at a second device according to some example embodiments of the present disclosure;
[0025] FIG. 12 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure; and
[0026] FIG. 13 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
[0027] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0028] 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.
[0029] 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.
[0030] 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.
[0031] It shall be understood that although the terms “first, ” “second, ” …, etc. in front of noun (s) 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 and they do not limit the order of the noun (s) . 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] As used in this application, the term “circuitry” may refer to one or more or all of the following:
[0036] (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and
[0037] (b) combinations of hardware circuits and software, such as (as applicable) :
[0038] (i) a combination of analog and / or digital hardware circuit (s) with software / firmware and
[0039] (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
[0040] (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.
[0041] 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.
[0042] 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.
[0043] 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.
[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) , 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 referred 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 cellular 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 (IoT) 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 combination of the time, frequency, space and / or code domain resource enabling a communication, and the like. In the following, unless explicitly stated, a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
[0048] As used herein, the term “subband full duplex (SBFD) ” may refer to a duplex communication mode that enables simultaneous transmission and reception within separate, non-overlapping frequency subbands, thereby enhancing spectral efficiency and network throughput. This concept is broadly applicable and not confined to any specific communication standards, making it relevant across a wide range of technologies from Long Term Evolution and New Radio systems to future advancements such as sixth generation communications. It is noted that the term "subband full duplex" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0049] As used herein, the term "synchronization signal block (SSB) " may refer to a specific structure within wireless communication systems that carries information for enabling devices to achieve time and frequency synchronization with the network. For example, in Long Term Evolution (LTE) and New Radio (NR) systems, Synchronization Signal Blocks are utilized to ensure robust and efficient network connectivity, playing a pivotal role in the seamless operation of these networks. It is noted that the term "synchronization signal block" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0050] As used herein, the term "scheduling restriction" may refer to specific rules or limitations placed on the allocation and timing of communication resources within a network. These restrictions are used to specify the UE expected UE behavior. During scheduling restrictions, the UE is not expected to measure SSBs and transmit in the UL for example. Thus, the scheduling restriction guarantees that the UE will be measuring the SSBs (if it is configured to do so) . It is noted that the term "scheduling restriction" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0051] As used herein, the term "path loss reference signal (PL-RS) " may refer to a reference signal in wireless communication systems that plays a crucial role in assessing the attenuation or loss of signal strength as it travels from a transmitter to a receiver. For example, in cellular networks, path loss reference signals are transmitted by base stations and received by user devices. It is noted that the term "path loss reference signal" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0052] As used herein, the term "radio link monitoring (RLM) " may refer to a continuous evaluation of the quality and reliability of the wireless link between a transmitter and a receiver. For example, in cellular networks, radio link monitoring ensures that the connection remains stable, meeting predefined quality standards. It is noted that the term "radio link monitoring" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0053] As used herein, the term "candidate beam detection (CBD) " may refer to a crucial function in wireless communication systems. For instance, in beamforming technology, candidate beam detection helps optimize communication by selecting the most suitable beam for data transmission, improving network efficiency. It is noted that the term “candidate beam detection” as used in this disclosure is not intended to be limited to the instances mentioned herein and applies to various wireless communication scenarios.
[0054] As used herein, the term "beam failure detection (BFD) " may play a vital role in ensuring reliable wireless communication. It is the mechanism for identifying and responding to beam failures in beamforming systems. It is noted that the term "beam failure detection" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0055] As used herein, the term "cell quality condition" may refer to the assessment and evaluation of the overall quality and performance of a cellular network cell. For example, in a cellular network, cell quality condition assessment involves monitoring signal strength, signal-to-noise ratios, interference levels, and network congestion within a cell. It is noted that the term "cell quality condition" as used in this disclosure is not intended to be limited to the instances mentioned herein. It is noted that the term "mobility threshold" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0056] As used herein, the term "serving cell" may refer to a cell within a cellular network that currently provides wireless communication services to a specific mobile device or user equipment. The serving cell is responsible for establishing and maintaining the connection with the UE and is typically the cell with the strongest signal and best quality for the UE at a given moment. It is noted that the term "serving cell" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0057] As used herein, the term "neighbor cell" may refer to a cell within a cellular network that is geographically adjacent to and overlaps in coverage with the serving cell. For example, in a cellular network, a user equipment connected to a serving cell may measure the signal strength and quality of neighboring cells. It is noted that the term "neighbor cell" as used in this disclosure is not intended to be limited to the instances mentioned herein.
[0058] FIG. 1 illustrates an example communication environment 100 in which example embodiments of the present disclosure can be implemented. In the communication environment 100, two communication apparatus, including a first apparatus 110, and a second apparatus 120 can communicate with each other.
[0059] In the example of FIG. 1, the first apparatus 110 may be a terminal device, such as UE, and the second apparatus 120 may be a network device, such as a base station serving the UE. The serving area of the network device 120 may be called a cell 102.
[0060] It is to be understood that the number of apparatuses and their connections shown in FIG. 1 are only for the purpose of illustration without suggesting any limitation. The communication environment 100 may include any suitable number of apparatuses configured to implementing example embodiments of the present disclosure. Although not shown, it would be appreciated that one or more additional apparatuses may be located in the cell 102, and one or more additional cells may be deployed in the communication environment 100.
[0061] In the following, for the purpose of illustration, some example embodiments are described with the first apparatus 110 operating as a terminal device and the second apparatus 120 operating as a network device. However, in some example embodiments, operations described in connection with a terminal device may be implemented at a network device or other device, and operations described in connection with a network device may be implemented at a terminal device or other device.
[0062] In some example embodiments, if the first apparatus 110 is a terminal device and the second apparatus 120 is a network device, 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) device (or a transmitter) and the first apparatus 110 is a receiving (RX) device (or a receiver) . In UL, the first apparatus 110 is a TX device (or a transmitter) and the second apparatus 120 is a RX device (or a receiver) .
[0063] Communications in the communication environment 100 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.
[0064] In a communication environment, a duplexing mode may be employed in the communication environment 100. FIG. 2A to FIG. 2C illustrate examples 200, 201, and 202 of duplexing modes. Currently, the 3rd Generation Partnership Project (3GPP) 5th Generation (5G) New Radio (NR) supports two duplexing modes: Frequency Division Duplexing (FDD) for paired bands (shown as example 200) and Time Division Duplexing (TDD) for unpaired bands (shown as example 201) . As shown in FIG. 2A, in FDD operation, the frequency domain resource is divided into a DL band 210, an UL band 220 and a guard band 230. UL and DL transmissions are allowed at the same time over different frequency bands which are separated by a guard band. Frequency bands are generally inflexible to change which may result in higher complexity and high cost. As shown in FIG. 2B, in TDD operation, the time domain resource is divided into DL 211 symbols / slots and UL symbols / slots 221. However, allocating a limited time duration for the UL in TDD can result in reduced coverage, increased latency, and reduced capacity.
[0065] To address these challenges, a mechanism on the evolution of duplexing operation in NR has been proposed. One of the objectives of the mechanism is to enable simultaneous DL and UL transmissions on different physical resource blocks (RBs) within an unpaired wideband NR cell (shown as example 202) . This new way of duplexing is referred to as SBFD. As shown in FIG. 2C, in SBFD operation, the time and frequency domain resource are split into a DL subband and a UL subband.
[0066] FIG. 3 illustrates an example 300 of SBFD slots and non-SBFD slots which can be implemented in the communication environment 100. Based on the description of SBFD operation mentioned above, it is apparent that there are two types of slots for both DL and UL transmissions, as shown in FIG. 3, namely SBFD slots and non-SBFD slots. In the SBFD slots 320, non-overlapping DL subband (s) and UL subband (s) coexist. In the non-SBFD slots 310 and 330, the entire band is used exclusively for either DL or UL (i.e., legacy / full DL / UL slots) . For example, as shown in FIG. 3, non-SBFD slots 310 are used for full DL transmission and non-SBFD slots 330 are used for full UL transmission.
[0067] In addition, SSB can be implemented in the communication environment 100. FIG. 4 illustrates an example structure of SSB 400. As shown in FIG. 4, the detailed description of the different signals and channels in the SSB are represented. In the time domain, there are four Orthogonal Frequency Division Multiplexing (OFDM) symbols 410. The Primary Synchronization Signal (PSS) 430 is carried on the first OFDM symbol. In the second OFDM symbol and in the fourth OFDM symbol, the Physical Broadcast Channel (PBCH) 440 is located. Transitioning to the third OFDM symbol, both the PBCH 440 and Secondary Synchronization Signal (SSS) 450 are located on the third OFDM symbol. The term “primary synchronization signal (PSS) ” used herein may refer to a physical layer signal that can be used by UE for radio frame synchronization, for example, for obtaining cell identity and frame timing. The term “secondary synchronization signal (SSS) ” used herein may refer to a specific physical layer signal that is used for radio frame synchronization. The term “PBCH signal” used herein may refer to a PBCH component of SS / PBCH that is responsible for broadcasting essential system information to the UE. In the frequency domain, there are 240 subcarriers 420, as shown in FIG. 4. In the lower-frequency domain, it encompasses the Physical Broadcast Channel (PBCH) 440. Moving to the mid-frequency range, it encompasses the Primary Synchronization Signal (PSS) 430, Physical Broadcast Channel (PBCH) 440, and Secondary Synchronization Signal (SSS) 450. In the higher-frequency domain, it reverts to featuring solely the Physical Broadcast Channel (PBCH) 440. It is noted the structure of the SSB 400 shown in FIG. 4 is only an example.
[0068] As mentioned previously, it is worth studying on combining SBFD and SSB in a way that maximizes spectral efficiency without compromising the reliability of signal transmission and reception. In some solutions, UEs in RRC_IDLE measure SSBs during the active discontinuous reception (DRX) period to evaluate the cell selection criterion. The UEs know which SSBs are transmitted by the gNB (ssb-PositionsInBurst transmitted in SIB1) . For UEs in RRC_CONNECTED, the gNB can optionally signal which SSBs are to be measured in the configuration of the measurement object (SSB-toMeasure) . In addition, UEs in RRC_CONNECTED are constantly monitoring the serving cell and the neighbor cells. The serving cell is monitored for radio link monitoring (RLM) , candidate beam detection (CBD) and beam failure detection (BFD) . For example, FIG. 5A illustrates a schematic diagram of SSB 400 periodicity (510) . The requirements for RLM (Radio Link Monitoring) , candidate beam detection (CBD) , and beam failure detection (BFD) are defined based on the periodicity of the SSB 400 (TSSB) , or Discontinuous Reception (DRX) periodicity if configured.
[0069] Additionally, serving cells and the neighbor cells are monitored for mobility purposes. For RLM, any SSB configured as RLM reference signal (RLM-RS) can be measured at any time –so the requirements are defined based on the periodicity of the SSB (TSSB) , or DRX if configured. For the intra-frequency and inter-frequency measurements without measurement gaps, the requirements are based on the SMTC (SSB measurement time configuration) periodicity or DRX if configured. FIG. 5B illustrates a schematic diagram of SSB Measurement Time Configuration (SMTC) periodicity 520. The SMTC periodicity is used for intra-frequency and inter-frequency measurements without gaps. The requirements for intra-frequency and inter-frequency measurements are based on SMTC periodicity or DRX if configured. The SMTC periodicity can be equal to or different than SSB periodicity.
[0070] Further, the UE might need measurement gaps (MG) to perform intra or inter-frequency measurements. FIG. 5C illustrates a schematic diagram of measurement gap repetition period 530. The measurement gaps are used for intra-frequency or inter-frequency measurements. During measurement gaps, the UE does not expect to be schedulable for data transmission or reception.
[0071] In some solutions, there are scheduling restrictions during the SSB transmissions. For example, the UE is not expected to transmit in UL during SSB symbols indicated in SSB-toMeasure in frequency range (FR) 1. The UE may not be expected to transmit physical uplink control channel (PUCCH) / physical uplink shared channel (PUSCH) / sounding reference signal (SRS) in SSB symbols to be measured. In case SSB-toMeasure is not configured, all SSB symbols indicated in SSB-positionsInBurst may be included in the scheduling restriction, the UE might not be able to use any symbol used for SSB transmissions for UL transmissions in the UL subband. All the symbols within the SMTC are restricted in FR2, if the UE cannot assume synchronization between the base stations.
[0072] As mentioned above, SBFD introduces simultaneous TX and RX at the gNB in the same carrier frequency, in non-overlapping resources. SSBs are used for serving cell and neighbor cell measurements (intra-frequency and inter-frequency) by both SBFD aware UEs and non-SBFD aware UEs in RRC_IDLE and RRC_CONNECTED. SSBs are broadcast signals transmitted with high power, which can increase the self-interference at the gNB if the UL subband is configured, and UEs are scheduled to transmit in this subband. Furthermore, UL transmissions in the UL subband can desensitize a victim UE in the vicinity of the transmitting UE. For example, FIG. 6 illustrates a schematic diagram of co-channel interference between user equipment in adjacent subbands. As FIG. 6 shows, UE in RRC_IDLE or RRC_CONNECTED 610 is measuring an SSB 400 in DL 210 subband, while another UE in RRC_CONNECTED 620 is transmitting in UL 220 subband. The leakage 630 of the transmission of the aggressor UE 620 will cause interference to the UE 610 that is measuring the SSB 400.
[0073] In some solutions, the SSB burst with the different SSB indexes may not be sent simultaneously. The UEs that are served by a certain beam could transmit in that UL transmission configuration indicator (TCI) state during a symbol which is used by the gNB for the transmission of a different SSB-index. For example, as shown in FIG. 7, in the SSB burst 700, the different SSB indexes are not sent simultaneously, as shown in FIG. 7. Therefore, the UEs 710 to 730 are served by a certain beam 740, for example, the SSB 400-2 can transmit in that UL TCI state during a symbol which is used by the network device 120 for the transmission of a different SSB 400-1 to 400-5, such as SSB 400-5. As FIG. 7 shows, UE 710 can transmit in the same symbol where UE 720 is measuring the SSB 400-5. However, the interference to a victim UE would depend not only on the beam direction, but also on the channel between both UEs, which is time-variant, and on the transmit power of the aggressor UEs. The gNB has no knowledge about the UEs that are measuring SSBs in IDLE mode, which makes the proper configuration even more difficult. The UEs are not only measuring the serving cell, but also neighbor cells (in the same, or different frequencies) for mobility purposes. So ensuring that the UE is served by beams with beam direction far enough from the direction of the SSB’s beam that is transmitted in a given moment does not ensure that the interference to other UEs will always be minimized.
[0074] According to some example embodiments of the present disclosure, there is provided a solution for effectively minimizing interference from uplink transmissions during SSB measurements across various UEs, while ensuring the collection of sufficient measurement data. The present disclosure addresses the challenge of UL transmission interference on SSB measurements, streamlining the process by considering more than just beam directions and including factors like channel variability and transmit power. Example embodiments of the present disclosure involve configuring UEs for better interference assessment, introducing new scheduling restrictions for UL transmissions on SSB symbols, and setting parameters like transmit power to reduce interference, thereby enhancing system efficiency and reducing UE-to-UE interference. Further, it can minimize the probability that transmissions on the UL subband will block measurements of other UEs, while still guaranteeing that the UE is getting sufficient measurement samples.
[0075] Example embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
[0076] Reference is made to FIG. 8, which illustrates a signaling flow of transmissions during SSB symbols in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the signalling flow 800 will be discussed with reference to FIG. 1, for example, by using the first apparatus 110 and the second apparatus 120.
[0077] As shown in FIG. 8, the second apparatus 120 transmits (8005) a first configuration associated with SBFD to the first apparatus 110. In other words, the first apparatus 110 receives (8005) the first configuration from the second apparatus 120. The first configuration is associated with an uplink transmission which is performed in the SBFD operation. The uplink transmission overlaps in time-domain with a set of resources which are allocated for a synchronization signal block (referred to as “a first set of resources” herein after) , reference is made to SBFD slots 320 in FIG. 3. In some example embodiments, the first configuration may include the SBFD frequency domain configuration and the SBFD time domain configuration.
[0078] The first apparatus 110 obtains (8010) a second configuration associated with the uplink transmission. The second configuration includes at least one of condition information or power information. The uplink transmission is performed on a set of resources (referred to as “a second set of resources” ) that overlaps with the first set of resources allocated to the synchronization signal block based on one or more of the condition information and the power information. The first set of resources and the second set of resources may not be overlapped in frequency-domain. In some example embodiments, the first apparatus 110 receive the second configuration from the second apparatus 120. Alternatively, the second configuration may be predetermined or predefined at the first apparatus 120.
[0079] In some example embodiments, the second configuration may include one or more parameters for transmissions during SSB symbols. The second configuration can include the scheduling restrictions (specific example embodiments will be described in the following) , number of measurements which can be skipped, new power levels or maximum power levels to be used for UL transmissions during SSB symbols, and so on. The scheduling restrictions can be either defined at the first apparatus 110, or inferred at the first apparatus 110 by evaluating the latest measurement results and the second configuration provided by the second apparatus 120. In some example embodiments, the scheduling restrictions may be defined in 3GPP standards.
[0080] In some example embodiments, the second apparatus 120 transmits (8015) a third configuration associated with SBFD. In other words, the first apparatus receives (8015) the third configuration from the second apparatus 120. The third configuration is associated with a measurement on the first set of resources and includes at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, and the number of skipped measurements. For example, the first apparatus 110 is configured with measurements and measurement reports based on the third configuration. The third configuration may encompass, such as a list of Synchronization Signal Blocks (SSBs) to be measured with lower priority, thresholds for assessing the Reference Signal Received Power (RSRP) of neighbor / serving cell SSBs, and criteria for triggering the report, among other details.
[0081] In some example embodiments, the first apparatus 110 performs (8020) the measurement based on the third configuration. For example, if the third configuration does not indicate the list of reference signals, the first apparatus 110 performs (8020) the measurement on all reference signals received on the first set of resources. In some other embodiments, if the number of skipped measurements exceeds a threshold number, the first apparatus 110 may perform (8020) at least some of the skipped measurement (s) or even all skipped measurements in a subsequent measurement period. For example, the first apparatus 110 measures Synchronization Signal Blocks (SSBs) from the serving and neighboring cells according to the third configuration. This process may involve checking SSBs listed in the new measurement schedule and counting the number of times SSB measurements of the same index have been skipped due to uplink transmissions. If the first apparatus 110 skips more than a certain number 'N' (i.e., the threshold number) of SSB measurements, the first apparatus 110 may prioritize these measurements at the next available opportunity. Moreover, the first apparatus 110 may review which SSB indexes meet the newly defined reporting criteria (i.e., the third configuration) set by the second apparatus 120, to decide on the submission of reports.
[0082] In some example embodiments, the first apparatus 110 transmits (8035) the measurement report to the second apparatus 120. In other words, the second apparatus 120 may receive (8035) the measurement report from the first apparatus 110.
[0083] In some example embodiments, the first apparatus 110 performs the measurement on the list of reference signals until the uplink transmission is scheduled by the second apparatus 120. This process may involve the first apparatus 110 receiving the third configuration for these measurements and sending reports tailored for UL transmissions in SSBs. For example, a new list of SSBs (i.e., list of reference signals) for each measurement object may be included in the third configuration where the default action of the first apparatus 110 is to measure SSBs from this list unless it receives an UL scheduling directive. In this way, it ensures that measurement activities are prioritized in the absence of UL transmissions. Furthermore, the UE is equipped with new thresholds designed to trigger measurement reports, which supports the decision-making process regarding which SSB indexes to measure and report. In some example embodiments, the third configuration may include different SSB lists, such as SSB-toMeasure and SSB-positionsInBurst, along with their associated scheduling restrictions, which implicitly states the importance of continuous measurement by the first apparatus 110 until an uplink transmission commences.
[0084] In some example embodiments, the first apparatus 110 may determine (8025) whether a reporting condition is met, and then skip (8030) or perform (8035) a transmission of the measurement report on the basis of the determining (8025) . In some example embodiments, the first apparatus 110 may be configured with one or more power thresholds designed to trigger measurement reports, which supports the decision-making process regarding which SSB indexes to measure and report. The one or more power thresholds discussed below may be one or more RSRP thresholds, or one or more reference signal received quality (RSRQ) thresholds. For example, the one or more power thresholds can be defined either in terms of absolute power levels or relative power levels, for example, between the serving beam index RSRP (which determines the UE TX power) and the RSRP of the beam index which overlaps with the UL transmission. Alternatively, the one or more power thresholds can be also defined either in terms of absolute quality levels or relative quality levels, for example, between the serving beam index SS-RSRQ of SSB bandwidth (BW) (which determines the CLI level in this SSB index) and the SS-RSRQ of SSB BW of the beam index which overlaps with the UL transmission.
[0085] In some embodiments, the power threshold information in the third configuration indicates a quality threshold of a serving cell for triggering the measurement report. In this case, the first apparatus 110 may transmit (8035) the measurement report to the second apparatus 120 based on the determination (8025) that a quality of the serving cell is above the other quality threshold. In some other example embodiments, the apparatus 110 skips (8030) the transmission of the measurement report based on the determination (8025) that a quality of the serving cell is not above the quality threshold. The quality threshold may specify an absolute Reference Signal Received Power (RSRP) level for a serving cell beam, guiding the decision on whether to send or skip the measurement report based on the serving cell's signal quality. For example, if the first apparatus 110 is only configured with the quality threshold of the serving cell, the first apparatus 110 may evaluate whether a quality of a serving cell beam is above the quality threshold of the serving cell. In this case, if the quality of the serving cell beam is above the quality threshold of the serving cell, the first apparatus 110 may report (8035) the measurement of the serving cell beam and the index the serving cell beam to the second apparatus 120.
[0086] In some example embodiments, the power threshold information indicates a quality threshold of a neighbor cell for triggering the measurement report. In this case, the first apparatus 110 may transmit (8035) the measurement report to the second apparatus 120, if the first apparatus 110 determines (8025) that a quality of the neighbor cell is not above the other quality threshold. In some other example embodiments, the apparatus 110 skips the transmission of the measurement report based on the determination (8025) that a quality of the neighbor cell is above the other quality threshold. The quality threshold may specify an absolute Reference Signal Received Power (RSRP) level for a neighbor cell beam, guiding the decision on whether to send or skip the measurement report based on the serving cell's signal quality. For example, if the first apparatus 110 is only configured with the quality threshold of the neighbor cell, the first apparatus 110 may evaluate whether the neighbor cell beam is below the quality threshold of the neighbor cell. In this case, if the neighbor cell beam is below the quality threshold of the neighbor cell, the first apparatus 110 may report (8035) report these measurements to the second apparatus 120.
[0087] In some example embodiments, the power threshold information indicates a difference quality threshold between the serving cell and the neighbor cell for triggering the measurement report. For example, the first apparatus 110 transmits (8035) the measurement report to the second apparatus 120 based on the determination (8025) that a difference quality between the serving cell and the neighbor cell is above the difference quality threshold. In some other example embodiments, the apparatus 110 skips the transmission of the measurement report based on the determination (8025) that the difference quality between the serving cell and the neighbor cell is not above the difference quality threshold. The difference quality threshold may specify a relative Reference Signal Received Power (RSRP) level between the serving cell and the neighbor cell, guiding the decision on whether to send or skip the measurement report based on the serving cell's signal quality. For example, if the first apparatus 110 is configured with the difference quality threshold, the first apparatus 110 may evaluate both the serving cell beam and the neighbor cell beam. By way of example, the difference quality threshold is configured to be 10 dB. In this case, the first apparatus 110 may only be expected to report the measurements (SS-RSRP) , if the difference between the serving and neighbor cell beams is above the 10 dB (i.e., the difference quality threshold) .
[0088] In some example embodiments, the second apparatus 120 transmits (8040) an uplink scheduling to the first apparatus 110. In other words, the first apparatus 110 receives (8040) an uplink scheduling from the second apparatus 120. For example, the first apparatus 110 evaluate whether there are scheduling restrictions or not when receiving UL scheduling during an SSB symbol. In some example embodiments, the uplink scheduling may be transmitted in downlink control information (DCI) . The first apparatus 110 performs (8055) based on the second configuration. In this way, it can minimize the probability that transmissions on the subband will block measurements.
[0089] In some example embodiments, the first apparatus 110 determines (8045) at least one condition under which the scheduling restriction is applicable to the uplink transmission. The first apparatus 110 may assess these scheduling restrictions in light of the configuration criteria configured by the second apparatus 120, such as the occurrence of mobility events, the use of the SSB for pathloss reference signal (PL-RS) reference maintained by the first apparatus 110, and the involvement of the SSB in RLM, BFD, or CBD processes. In cases where the SSB is engaged in RLM, BFD, or CBD, the first apparatus 110 determines the feasibility of skipping a measurement, for instance, if at least one RLM-RS exceeds the threshold Qin. The threshold Qin as defined in the 3GPP standard specifications is a level at which downlink radio link quality can be received with significantly higher reliability than at Qout and shall correspond to in-sync block error rate of 2%. The first apparatus 110 also checks if the transmission thresholds are met. This assessment can also be performed by the second apparatus 120, utilizing the measurement reports from the first apparatus 110, to decide on the prioritization of measurements or UL transmissions during a specific SSB index. The first apparatus 110 may perform the uplink transmission in symbols overlapping with SSBs when it is in good-cell conditions, for example, the SS-RSRP of the serving cell is above a threshold, and the first apparatus 110 is in low mobility conditions (the difference between the latest SS-RSRP measurement and the current one is under a threshold) . This condition ensures that the first apparatus 110 will transmit with a lower power in those symbols, minimizing potential interference to UEs in IDLE mode in the vicinity. Detailed example embodiments are described below.
[0090] In some example embodiments, the first apparatus 110 skip the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block based on the at least one condition. Alternatively, the first apparatus 110 performs (8055) the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block based on the at least one condition.
[0091] In some example embodiments, at least one condition indicates that the uplink transmission shall be skipped on resources allocated to a synchronization signal block including a path loss reference signal. In this case, the first apparatus 110 may determine that whether the synchronization signal block is used for the path loss reference signal that is maintained by the first apparatus 110. The first apparatus 110 may skip (8050) the uplink transmission on the first set of resources that overlaps in time-domain allocated to the synchronization signal block, if the synchronization signal block comprises the path loss reference signal (PL-RS) . Conversely, if the synchronization signal block does not comprise the path loss reference signal, the first apparatus 110 may perform (8055) the uplink transmission on the set of resources allocated to the synchronization signal block. This aligns with scheduling restrictions on symbols overlapping with SSBs from the serving cell used as PL-RS. Following the 3GPP standard specifications, a certain SSB may be configured as the PL-RS, e.g. SSB 400-2.
[0092] In some other example embodiments, at least one condition indicates that the uplink transmission shall be skipped on resources allocated to a synchronization signal block including a reference signal used for RLM, CBD, or BFD. In this case, the first apparatus 110 may determine that whether the synchronization signal block is used for RLM or CBD or BFD. The first apparatus 110 may skip (8050) the uplink transmission on the set of resources allocated to the synchronization signal block, if the synchronization signal block includes the reference signal. Alternatively, if the synchronization signal block does not include the reference signal used for at least one of RLM, CBD, or BFD, the first apparatus 110 may perform (8055) the uplink transmission on the second set of resources. This may reflect the scheduling restrictions on symbols overlapping with SSBs used for RLM, CBD, or BFD by the serving cell.
[0093] In some example embodiments, at least one condition indicates that a power threshold for a synchronization signal block including a reference signal used for RLM, CBD, or BFD. In this case, the first apparatus 110 may determine whether the power value of the synchronization signal block is above the power threshold, if the synchronization signal block comprises the reference signal. Based on this determination, if the power value is not above the power threshold, the uplink transmission may be skipped (8050) on the second set of resources. Alternatively, if the power value is above the power threshold, the uplink transmission may be performed (8055) on the second set of resources.
[0094] In some example embodiments, at least one condition indicates that the uplink transmission shall be skipped on resources allocated to a synchronization signal block including a reference signal used for a mobility measurement. In this case, the first apparatus 110 may determine whether the synchronization signal block includes the reference signal used for a mobility measurement. For example, the at least one condition may be determining when the scheduling restriction is valid, such as, the any mobility event is triggered, and in case the mobility events are triggered, the first apparatus 110 may prioritizes measurement instead of UL transmissions. The first apparatus 110 may skip (8050) the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, if the synchronization signal block includes the reference signal for the mobility measurement. Alternatively, if the synchronization signal block does not include the reference signal for the mobility measurement, the first apparatus 110 may perform (8055) the uplink transmission on the second set of resources. This may correlate with scheduling restrictions on symbols overlapping with SSBs being measured for mobility.
[0095] In some example embodiments, at least one condition indicates that the uplink transmission has a higher priority than that of a synchronization signal block including a reference signal for a mobility measurement. The first apparatus 110 may perform (8055) the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, if the synchronization signal block includes the reference signal for the mobility measurement.
[0096] In some example embodiments, at least one condition indicates the number of measurements on the synchronization signal block that shall be skipped to perform the uplink transmission. In other words, the second apparatus 120 may configure the first apparatus 110 to relax the measurements and prioritize the UL transmission. In this case, the first apparatus 110 performs (8055) the uplink transmission on the second set of resources that overlap in time-domain with resources allocated to the number of measurements. In some embodiments, the indicated measurements may include a set of consecutive measurements of the same SSB index.
[0097] In some example embodiments, at least one condition indicates a cell quality condition and a mobility threshold for performing the uplink transmission. In this case, the first apparatus 110 may determine whether a cell condition is above the quality threshold and a mobility of the first apparatus is not above the mobility threshold. The first apparatus 110 may perform (8055) the uplink transmission on the second set of resources, based on a determination that the cell condition is above the quality threshold and the mobility of the first apparatus 110 is not above the mobility threshold.
[0098] In some example embodiments, at least one condition indicates a quality threshold of a serving cell for performing the uplink transmission. In this case, the first apparatus 110 may determine whether a quality of the serving cell is above the quality threshold. The quality threshold may be RSRP threshold or RSRQ threshold. For example, the first apparatus 110 performs (8055) the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block based on a determination that the quality of the serving cell is above the quality threshold. The first apparatus 110 may skip (8050) the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block based on a determination that the quality of the serving cell is not above the quality threshold. For example, if the first apparatus 110 is only configured with the quality threshold of the serving cell, the first apparatus 110 may evaluate whether a serving cell beam is above the quality threshold of the serving cell. If the serving cell beam is above the quality threshold of the serving cell, it means that the first apparatus 110 would require a lower transmission power if transmitting in that beam. The first apparatus 110 may determine that this symbol is suitable for UL transmissions and perform the uplink transmission.
[0099] In some other example embodiments, at least one condition indicates a quality threshold of a neighbor cell for performing the uplink transmission. The quality threshold may be RSRP threshold or RSRQ threshold. In this case, the first apparatus 110 may determine whether a quality of the neighbor cell is not above the quality threshold. The first apparatus 110 may perform (8055) the uplink transmission on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block based on a determination that the quality of the neighbor cell is not above the quality threshold. The first apparatus 110 may skip (8055) the uplink transmission on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal, if the quality of the neighbor cell is above the quality threshold. For example, the first apparatus 110 may be only configured with the quality threshold of the neighbor cell. The first apparatus 110 may evaluate whether the neighbor cell beam is below the quality threshold of the neighbor cell. If the neighbor cell beam is below the quality threshold of the neighbor cell, it means that the first apparatus 110 is far from the direction of that neighbor cell beam, and potentially cause low CLI to UEs measuring that beam. In this case, the first apparatus 110 may then perform (8055) the uplink transmission on the second set of resources.
[0100] In some further example embodiments, at least one condition indicates a difference quality threshold between a serving cell and a neighbor cell for performing the uplink transmission. The difference quality threshold may be RSRP difference threshold or RSRQ difference threshold. In this case, the first apparatus 110 may determine whether a difference quality between the serving cell and the neighbor cell is above the difference quality threshold. The first apparatus 110 may perform (8055) the uplink transmission on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block, if the difference quality between the serving cell and the neighbor cell is above the difference quality threshold. The first apparatus 110 may skip (8055) the uplink transmission on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal, if the difference quality between the serving cell and the neighbor cell is not above the difference quality threshold. For example, if the first apparatus 110 is configured with the difference quality threshold, the first apparatus 110 may evaluate both the serving cell beam and the neighbor cell beam. Only as an example, the difference quality threshold is configured to be 10 dB. The first apparatus 110 may only be expected to perform the uplink transmission, if the difference between the serving cell beam RSRP and the neighbor cell beam RSRP is above 10 dB.
[0101] FIG. 9 illustrates a schematic diagram of serving cell and neighbor cell measurements in accordance with some example embodiments of the present disclosure. As shown in FIG. 9, the first apparatus 110 may measure RSRP values of SSBs 911, 912, 913, 914, and 915 (shown in 980) in the serving cell provided by the second apparatus 120. The first apparatus 110 may also measure the first apparatus 110 may perform the uplink transmission RSRP values of SSBs 901, 902, 903, 904, and 905 in the neighbor cell provided by the apparatus 910. The second apparatus 120 sets a threshold 970 for the RSRP level difference between the RSRP value 972 of the serving SSB (i.e., the SSB 912) and the RSRP value of the target SSB index for UL transmissions. The first apparatus 110 may be required to apply this RSRP level difference threshold 970 to both the serving cell SSBs and intra-frequency SSBs, allowing transmissions on a candidate SSB only if its RSRP falls below this defined threshold. For instance, as depicted in FIG. 9, the difference between the RSRP value of SSB 903 and the RSRP value 972 of SSB 912 is larger than the RSRP level difference threshold 970, which means that the condition for performing the uplink transmission is met, assuming synchronization between the serving and neighbor cell SSBs. Additionally, thresholds may also be established based on the RSRQ, offering another metric for determining transmission eligibility.
[0102] In some example embodiments, the first apparatus determines (8053) a transmission power on the set of resources based on the power information and performs (8055) the uplink transmission based on the transmission power. The first apparatus 110 may apply the transmission power levels as specified by the second apparatus 120 if there are no scheduling restrictions. In this way, it can reduce the transmit power to minimize the interference to nearby UEs.
[0103] In some example embodiments, the power information indicates a maximum transmission power level for the uplink transmission. In this case, the transmission power of any UL transmission overlapping with SSBs is capped by the maximum transmission power. That is, if the transmission power is greater than the maximum transmission power, the maximum transmission power be used as transmit power for the UL transmission.
[0104] Alternatively, the power information indicates a power reduction factor for the uplink transmission. In this case, the first apparatus 110 may firstly calculate a transmission power and subtract the transmission power by the power reduction factor to get an actual transmission power for the uplink transmission.
[0105] In some other embodiments, the power information indicates a factor for reducing a reception power of the uplink transmission at the second apparatus 120. For example, one separate P0 and / or alpha can be determined for the SBFD UL transmission in the symbol overlapped with SSB. This can be used to reduce the UL reception power at the second device 120 and limit the interference to other UE’s measurement based on the SSB. While as the P0 and / or alpha is controlled by second device 120, the UL reception quality can also be in control of the second device 120 as an acceptable level.
[0106] FIG. 10 shows a flowchart of an example method 1000 implemented at a first apparatus 110 in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 1000 will be described from the perspective of the first apparatus 110 in FIG. 1.
[0107] At block 1010, the first apparatus 110 receives, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block.
[0108] At block 1020, the first apparatus 110 obtains a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block.
[0109] At block 1030, the first apparatus 110 performs, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0110] In some example embodiments, the method 1000 further comprises: determining at least one condition under which the scheduling restriction is applicable to the uplink transmission; and based on the determination that the at least one condition overrules the scheduling restriction imposed on the uplink transmission, performing the uplink transmission.
[0111] In some example embodiments, the method 1000 further comprises: in response to that the synchronization signal block comprises the path loss reference signal, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or in response to that the synchronization signal block does not comprise the path loss reference signal, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resource allocated to the synchronization signal block.
[0112] In some example embodiments, the method 1000 further comprises: in response to that synchronization signal block comprises the reference signal, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or in response to that the synchronization signal block does not comprise the reference signal, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0113] In some example embodiments, the method 1000 further comprises: in response to that the synchronization signal block comprises the reference signal, determining whether a power value of the synchronization signal block above the power threshold; and based on a determination that the power value is not above the power threshold, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or based on a determination that the power value is above the power threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0114] In some example embodiments, the method 1000 further comprises: in response to that the synchronization signal block comprises the reference signal for the mobility measurement, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or in response to that the synchronization signal block does not comprise the reference signal for the mobility measurement, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0115] In some example embodiments, the method 1000 further comprises: in response to that the synchronization signal block comprises the reference signal for the mobility measurement, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0116] In some example embodiments, the method 1000 further comprises: performing the uplink transmission on the second set of resources that overlaps in time-domain with resources allocated to the number of measurements.
[0117] In some example embodiments, the method 1000 further comprises: based on a determination that a cell condition is above the quality threshold and a mobility of the first apparatus is not above the mobility threshold, performing the uplink transmission on the set second of resources.
[0118] In some example embodiments, the method 1000 further comprises: based on a determination that a quality of the serving cell is above the quality threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or based on a determination that the quality of the serving cell is not above the quality threshold, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0119] In some example embodiments, the method 1000 further comprises: based on a determination that a quality of the neighbor cell is not above the quality threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or based on a determination that the quality of the neighbor cell is above the quality threshold, causing the uplink transmission to be skipped on the first set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0120] In some example embodiments, the method 1000 further comprises: based on a determination that a difference quality between the serving cell and the neighbor cell is above the difference quality threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or based on a determination that the difference quality between the serving cell and the neighbor cell is not above the difference quality threshold, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0121] In some example embodiments, the power information indicates at least one of: a maximum transmission power level for the uplink transmission, a power reduction factor for the uplink transmission, or a factor for reducing a reception power of the uplink transmission at the second apparatus.
[0122] In some example embodiments, the method 1000 further comprises: determining a transmission power on the set of resources based on the power information; and performing the uplink transmission based on the transmission power.
[0123] In some example embodiments, the method 1000 further comprises: receiving the second configuration from the second apparatus.
[0124] In some example embodiments, the method 1000 further comprises: receiving, from the second apparatus, a third configuration associated with a measurement on the first set of resources, wherein the third configuration indicates at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, the number of skipped measurements; performing the measurement based on the third configuration; and transmitting the measurement report to the second apparatus based on the third configuration.
[0125] In some example embodiments, the method 1000 further comprises: performing the measurement on the list of reference signals until the uplink transmission is scheduled by the second apparatus.
[0126] In some example embodiments, the method 1000 further comprises: based on a determination that a quality of the serving cell is above the other quality threshold, transmitting the measurement report to the second apparatus; or based on a determination that the quality of the serving cell is not above the other quality threshold, causing the transmission of the measurement report to be skipped.
[0127] In some example embodiments, the method 1000 further comprises: based on a determination that a quality of the neighbor cell is not above the other quality threshold, transmitting the measurement report to the second apparatus; or based on a determination that the quality of the neighbor cell is above the other quality threshold, causing the transmission of the measurement report to be skipped.
[0128] In some example embodiments, the method 1000 further comprises: based on a determination that a difference quality between the serving cell and the neighbor cell is above the other difference quality threshold, transmitting the measurement report to the second apparatus; or based on a determination that the difference quality between the serving cell and the neighbor cell is not above the other difference quality threshold, causing the transmission of the measurement report to be skipped.
[0129] In some example embodiments, the method 1000 further comprises: in response to the third configuration not indicating the list of reference signals, performing the measurement on all reference signals received on the first set of resources.
[0130] In some example embodiments, the method 1000 further comprises: in response to the number of skipped measurements exceeding a threshold number, performing the measurement in a subsequent measurement period.
[0131] In some example embodiments, the first apparatus is a terminal device, and the second apparatus is a network device.
[0132] FIG. 11 shows a flowchart of an example method 1100 implemented at a second device in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 1100 will be described from the perspective of the second device 120 in FIG. 1.
[0133] At block 1110, the second apparatus 120 transmits, to a first apparatus 110, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block.
[0134] At block 1120, the second apparatus 120 transmits, to the first apparatus 110, a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0135] At block 1130, the second apparatus 120 receives, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0136] In some example embodiments, the condition information that comprising a scheduling restriction, and the scheduling restriction indicates at least one of: the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a path loss reference signal, the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, a power threshold for a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal used for a mobility measurement, the uplink transmission has a higher priority than that of a synchronization signal block comprising a reference signal for the mobility measurement, the number of measurements that shall be skipped to perform the uplink transmission, a cell quality condition and a mobility threshold for performing the uplink transmission, a quality threshold of a serving cell for performing the uplink transmission, a quality threshold of a neighbor cell for performing the uplink transmission, or a difference quality threshold between the serving cell and the neighbor cell for performing the uplink transmission.
[0137] In some example embodiments, the power information indicates at least one of: a maximum transmission power level for the uplink transmission, a power reduction factor for the uplink transmission, or a factor for reducing a reception power of the uplink transmission at the second apparatus.
[0138] In some example embodiments, the method 1100 further comprises: transmitting, to the first apparatus, a third configuration associated with a measurement on the first set of resources, wherein the third configuration indicates at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, the number of skipped measurements; and receiving the measurement report from the first apparatus based on the third configuration.
[0139] In some example embodiments, the power threshold information indicates at least one of: another quality threshold of a serving cell for triggering the measurement report, another quality threshold of a neighbor cell for triggering the measurement report, or another difference quality threshold between the serving cell and the neighbor cell for triggering the measurement report.
[0140] In some example embodiments, the first apparatus is a terminal device, and the second apparatus is a network device.
[0141] In some example embodiments, a first apparatus capable of performing any of the method 1000 (for example, the first apparatus 110 in FIG. 1) may comprise means for performing the respective operations of the method 1000. 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. 1.
[0142] In some example embodiments, the first apparatus comprises means for receiving, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; means for obtaining a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; and means for performing, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0143] In some example embodiments, the second configuration comprises the condition information that comprises a scheduling restriction, and wherein the first apparatus further comprises: means for determining at least one condition under which the scheduling restriction is applicable to the uplink transmission; and means for based on the determination that the at least one condition overrules the scheduling restriction imposed on the uplink transmission, performing the uplink transmission.
[0144] In some example embodiments, the at least one condition indicates that the uplink transmission shall be skipped on resources that overlap in time-domain with resources allocated to a synchronization signal block comprising a path loss reference signal, and wherein the first apparatus further comprises: means for in response to that the synchronization signal block comprises the path loss reference signal, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or means for in response to that the synchronization signal block does not comprise the path loss reference signal, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resource allocated to the synchronization signal block.
[0145] In some example embodiments, the at least one condition indicates that the uplink transmission shall be skipped on resources that overlap in time-domain with resources allocated to a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, and wherein the first apparatus further comprises: means for in response to that synchronization signal block comprises the reference signal, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or means for in response to that the synchronization signal block does not comprise the reference signal, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0146] In some example embodiments, the at least one condition indicates that a power threshold for a synchronization signal block comprising reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, and wherein the first apparatus further comprises: means for in response to that the synchronization signal block comprises the reference signal, determining whether a power value of the synchronization signal block above the power threshold; and means for based on a determination that the power value is not above the power threshold, causing the uplink transmission to be skipped on the second set of resources that overlaps in time- domain with the first set of resources allocated to the synchronization signal block; or means for based on a determination that the power value is above the power threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0147] In some example embodiments, the at least one condition indicates that the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal used for a mobility measurement, and wherein the first apparatus further comprises: means for in response to that the synchronization signal block comprises the reference signal for the mobility measurement, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or means for in response to that the synchronization signal block does not comprise the reference signal for the mobility measurement, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0148] In some example embodiments, the at least one condition indicates that the uplink transmission has a higher priority than that of a synchronization signal block comprising a reference signal for a mobility measurement, and wherein the first apparatus further comprises: means for in response to that the synchronization signal block comprises the reference signal for the mobility measurement, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0149] In some example embodiments, the at least one condition indicates the number of measurements on the synchronization signal block that shall be skipped to perform the uplink transmission, and wherein the first apparatus further comprises: means for performing the uplink transmission on the second set of resources that overlaps in time-domain with resources allocated to the number of measurements.
[0150] In some example embodiments, the at least one condition indicates a cell quality condition and a mobility threshold for performing the uplink transmission, and wherein the first apparatus further comprises: means for based on a determination that a cell condition is above the quality threshold and a mobility of the first apparatus is not above the mobility threshold, performing the uplink transmission on the second set of resources.
[0151] In some example embodiments, the at least one condition indicates a quality threshold of a serving cell for performing the uplink transmission, and wherein the first apparatus further comprises: means for based on a determination that a quality of the serving cell is above the quality threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or means for based on a determination that the quality of the serving cell is not above the quality threshold, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0152] In some example embodiments, the at least one condition indicates a quality threshold of a neighbor cell for performing the uplink transmission, and wherein the first apparatus further comprises: means for based on a determination that a quality of the neighbor cell is not above the quality threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or means for based on a determination that the quality of the neighbor cell is above the quality threshold, causing the uplink transmission to be skipped on the first set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0153] In some example embodiments, the at least one condition indicates a difference quality threshold between a serving cell and a neighbor cell for performing the uplink transmission, and wherein the first apparatus further comprises: means for based on a determination that a difference quality between the serving cell and the neighbor cell is above the difference quality threshold, performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; or means for based on a determination that the difference quality between the serving cell and the neighbor cell is not above the difference quality threshold, causing the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.
[0154] In some example embodiments, the power information indicates at least one of: a maximum transmission power level for the uplink transmission, a power reduction factor for the uplink transmission, or a factor for reducing a reception power of the uplink transmission at the second apparatus.
[0155] In some example embodiments, the first apparatus further comprises: means for determining a transmission power on the set of resources based on the power information; and means for performing the uplink transmission based on the transmission power.
[0156] In some example embodiments, the first apparatus further comprises: means for receiving the second configuration from the second apparatus.
[0157] In some example embodiments, the first apparatus further comprises: means for receiving, from the second apparatus, a third configuration associated with a measurement on the first set of resources, wherein the third configuration indicates at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, the number of skipped measurements; means for performing the measurement based on the third configuration; and means for transmitting the measurement report to the second apparatus based on the third configuration.
[0158] In some example embodiments, the first apparatus further comprises: means for performing the measurement on the list of reference signals until the uplink transmission is scheduled by the second apparatus.
[0159] In some example embodiments, the power threshold information indicates another quality threshold of a serving cell for triggering the measurement report, and wherein the first apparatus further comprises: means for based on a determination that a quality of the serving cell is above the other quality threshold, transmitting the measurement report to the second apparatus; or means for based on a determination that the quality of the serving cell is not above the other quality threshold, causing the transmission of the measurement report to be skipped.
[0160] In some example embodiments, the power threshold information indicates another quality threshold of a neighbor cell for triggering the measurement report, and wherein the first apparatus further comprises: means for based on a determination that a quality of the neighbor cell is not above the other quality threshold, transmitting the measurement report to the second apparatus; or means for based on a determination that the quality of the neighbor cell is above the other quality threshold, causing the transmission of the measurement report to be skipped.
[0161] In some example embodiments, the power threshold information indicates another difference quality threshold between the serving cell and the neighbor cell for triggering the measurement report, and wherein the first apparatus further comprises: means for based on a determination that a difference quality between the serving cell and the neighbor cell is above the other difference quality threshold, transmitting the measurement report to the second apparatus; or means for based on a determination that the difference quality between the serving cell and the neighbor cell is not above the other difference quality threshold, causing the transmission of the measurement report to be skipped.
[0162] In some example embodiments, the first apparatus further comprises: means for in response to the third configuration not indicating the list of reference signals, performing the measurement on all reference signals received on the first set of resources.
[0163] In some example embodiments, the first apparatus further comprises: means for in response to the number of skipped measurements exceeding a threshold number, performing the measurement in a subsequent measurement period.
[0164] In some example embodiments, the first apparatus is a terminal device, and the second apparatus is a network device.
[0165] In some example embodiments, the first apparatus further comprises means for performing other operations in some example embodiments of the method 1000 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.
[0166] In some example embodiments, a second apparatus capable of performing any of the method 1100 (for example, the second apparatus 120 in FIG. 1) may comprise means for performing the respective operations of the method 1100. 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. 1.
[0167] In some example embodiments, the second apparatus comprises means for transmitting, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block; means for transmitting, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of: condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, or power information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; and means for receiving, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.
[0168] In some example embodiments, the condition information that comprising a scheduling restriction, and the scheduling restriction indicates at least one of: the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a path loss reference signal, means for the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, means for a power threshold for a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal used for a mobility measurement, the uplink transmission has a higher priority than that of a synchronization signal block comprising a reference signal for the mobility measurement, the number of measurements that shall be skipped to perform the uplink transmission, a cell quality condition and a mobility threshold for performing the uplink transmission, a quality threshold of a serving cell for performing the uplink transmission, a quality threshold of a neighbor cell for performing the uplink transmission, or a difference quality threshold between the serving cell and the neighbor cell for performing the uplink transmission.
[0169] In some example embodiments, the power information indicates at least one of: a maximum transmission power level for the uplink transmission, a power reduction factor for the uplink transmission, or a factor for reducing a reception power of the uplink transmission at the second apparatus.
[0170] In some example embodiments, the second apparatus further comprises: means for transmitting, to the first apparatus, a third configuration associated with a measurement on the first set of resources, wherein the third configuration indicates at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, the number of skipped measurements; and means for receiving the measurement report from the first apparatus based on the third configuration.
[0171] In some example embodiments, the power threshold information indicates at least one of: another quality threshold of a serving cell for triggering the measurement report, another quality threshold of a neighbor cell for triggering the measurement report, or another difference quality threshold between the serving cell and the neighbor cell for triggering the measurement report.
[0172] In some example embodiments, the first apparatus is a terminal device, and the second apparatus is a network device.
[0173] In some example embodiments, the second apparatus further comprises means for performing other operations in some example embodiments of the method 1100 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.
[0174] FIG. 12 is a simplified block diagram of a device 1200 that is suitable for implementing example embodiments of the present disclosure. The device 1200 may be provided to implement a communication device, for example, the first apparatus 110 or the second apparatus 120 as shown in FIG. 1. As shown, the device 1200 includes one or more processors 1210, one or more memories 1220 coupled to the processor 1210, and one or more communication modules 1240 coupled to the processor 1210.
[0175] The communication module 1240 is for bidirectional communications. The communication module 1240 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 1240 may include at least one antenna.
[0176] The processor 1210 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 1200 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.
[0177] The memory 1220 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) 1224, 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) 1222 and other volatile memories that will not last in the power-down duration.
[0178] A computer program 1230 includes computer executable instructions that are executed by the associated processor 1210. The instructions of the program 1230 may include instructions for performing operations / acts of some example embodiments of the present disclosure. The program 1230 may be stored in the memory, e.g., the ROM 1224. The processor 1210 may perform any suitable actions and processing by loading the program 1230 into the RAM 1222.
[0179] The example embodiments of the present disclosure may be implemented by means of the program 1230 so that the device 1200 may perform any process of the disclosure as discussed with reference to FIG. 2 to FIG. 11. The example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0180] In some example embodiments, the program 1230 may be tangibly contained in a computer readable medium which may be included in the device 1200 (such as in the memory 1220) or other storage devices that are accessible by the device 1200. The device 1200 may load the program 1230 from the computer readable medium to the RAM 1222 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) .
[0181] FIG. 13 shows an example of the computer readable medium 1300 which may be in form of CD, DVD or other optical storage disk. The computer readable medium 1300 has the program 1230 stored thereon.
[0182] 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.
[0183] 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 modules 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.
[0184] 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.
[0185] 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.
[0186] 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.
[0187] 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.
[0188] 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 to:receive, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block;obtain a second configuration associated with the uplink transmission comprising at least one of:condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, orpower information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; andperform, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.2.The first apparatus of claim 1, wherein the second configuration comprises the condition information that comprises a scheduling restriction, and wherein first apparatus is caused to:determine at least one condition under which the scheduling restriction is applicable to the uplink transmission; andbased on the determination that the at least one condition overrules the scheduling restriction imposed on the uplink transmission, perform the uplink transmission.3.The first apparatus of claim 2, wherein the at least one condition indicates that the uplink transmission shall be skipped on resources that overlap in time-domain with resources allocated to a synchronization signal block comprising a path loss reference signal, and wherein the first apparatus is caused to:in response to that the synchronization signal block comprises the path loss reference signal, cause the uplink transmission to be skipped on second set of resources that overlaps in time-domain with the first the set of resources allocated to the synchronization signal block; orin response to that the synchronization signal block does not comprise the path loss reference signal, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resource allocated to the synchronization signal block.4.The first apparatus of claim 2, wherein the at least one condition indicates that the uplink transmission shall be skipped on resources that overlap in time-domain with resources allocated to a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, and wherein the first apparatus is caused to:in response to that synchronization signal block comprises the reference signal, cause the uplink transmission to be skipped on second set of resources that overlaps in time-domain with the first the set of resources allocated to the synchronization signal block; orin response to that the synchronization signal block does not comprise the reference signal, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.5.The first apparatus of claim 2, wherein the at least one condition indicates that a power threshold for a synchronization signal block comprising reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection, and wherein the first apparatus is caused to:in response to that the synchronization signal block comprises the reference signal, determine whether a power value of the synchronization signal block above the power threshold; andbased on a determination that the power value is not above the power threshold, cause the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; orbased on a determination that the power value is above the power threshold, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.6.The first apparatus of claim 2, wherein the at least one condition indicates that the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal used for a mobility measurement, and wherein the first apparatus is caused to:in response to that the synchronization signal block comprises the reference signal for the mobility measurement, cause the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; orin response to that the synchronization signal block does not comprise the reference signal for the mobility measurement, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.7.The first apparatus of claim 2, wherein the at least one condition indicates that the uplink transmission has a higher priority than that of a synchronization signal block comprising a reference signal for a mobility measurement, and wherein the first apparatus is caused to:in response to that the synchronization signal block comprises the reference signal for the mobility measurement, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.8.The first apparatus of claim 2, wherein the at least one condition indicates the number of measurements on the synchronization signal block that shall be skipped to perform the uplink transmission, and wherein the first apparatus is caused to:perform the uplink transmission on the second set of resources that overlaps in time-domain with resources allocated to the number of measurements.9.The first apparatus of claim 2, wherein the at least one condition indicates a cell quality condition and a mobility threshold for performing the uplink transmission, and wherein the first apparatus is caused to:based on a determination that a cell condition is above the quality threshold and a mobility of the first apparatus is not above the mobility threshold, perform the uplink transmission on the second set of resources.10.The first apparatus of claim 2, wherein the at least one condition indicates a quality threshold of a serving cell for performing the uplink transmission, and wherein the first apparatus is caused to:based on a determination that a quality of the serving cell is above the quality threshold, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; orbased on a determination that the quality of the serving cell is not above the quality threshold, cause the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.11.The first apparatus of claim 2, wherein the at least one condition indicates a quality threshold of a neighbor cell for performing the uplink transmission, and wherein the first apparatus is caused to:based on a determination that a quality of the neighbor cell is not above the quality threshold, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; orbased on a determination that the quality of the neighbor cell is above the quality threshold, cause the uplink transmission to be skipped on the first set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.12.The first apparatus of claim 2, wherein the at least one condition indicates a difference quality threshold between a serving cell and a neighbor cell for performing the uplink transmission, and wherein the first apparatus is caused to:based on a determination that a difference quality between the serving cell and the neighbor cell is above the difference quality threshold, perform the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; orbased on a determination that the difference quality between the serving cell and the neighbor cell is not above the difference quality threshold, cause the uplink transmission to be skipped on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.13.The first apparatus of any of claims 1-12, wherein the power information indicates at least one of:a maximum transmission power level for the uplink transmission,a power reduction factor for the uplink transmission, ora factor for reducing a reception power of the uplink transmission at the second apparatus.14.The first apparatus of claim 13, wherein the first apparatus is caused to:determine a transmission power on the set of resources based on the power information; andperform the uplink transmission based on the transmission power.15.The first apparatus of any of claims 1-14, wherein the first apparatus is caused to:receive the second configuration from the second apparatus.16.The first apparatus of any of claims 1-15, wherein the first apparatus is further caused to:receive, from the second apparatus, a third configuration associated with a measurement on the first set of resources, wherein the third configuration indicates at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, the number of skipped measurements;perform the measurement based on the third configuration; andtransmit the measurement report to the second apparatus based on the third configuration.17.The first apparatus of claim 16, wherein the first apparatus is caused to:perform the measurement on the list of reference signals until the uplink transmission is scheduled by the second apparatus.18.The first apparatus of claim 16, wherein the power threshold information indicates another quality threshold of a serving cell for triggering the measurement report, and wherein the first apparatus is caused to:based on a determination that a quality of the serving cell is above the other quality threshold, transmit the measurement report to the second apparatus; orbased on a determination that the quality of the serving cell is not above the other quality threshold, cause the transmission of the measurement report to be skipped.19.The first apparatus of claim 16, wherein the power threshold information indicates another quality threshold of a neighbor cell for triggering the measurement report, and wherein the first apparatus is caused to:based on a determination that a quality of the neighbor cell is not above the other quality threshold, transmit the measurement report to the second apparatus; orbased on a determination that the quality of the neighbor cell is above the other quality threshold, cause the transmission of the measurement report to be skipped.20.The first apparatus of claim 16, wherein the power threshold information indicates another difference quality threshold between the serving cell and the neighbor cell for triggering the measurement report, and wherein the first apparatus is caused to:based on a determination that a difference quality between the serving cell and the neighbor cell is above the other difference quality threshold, transmit the measurement report to the second apparatus; orbased on a determination that the difference quality between the serving cell and the neighbor cell is not above the other difference quality threshold, cause the transmission of the measurement report to be skipped.21.The first apparatus of claim 16, wherein the first apparatus is caused to:in response to the third configuration not indicating the list of reference signals, perform the measurement on all reference signals received on the first set of resources.22.The first apparatus of claim 16, wherein the first apparatus is caused to:in response to the number of skipped measurements exceeding a threshold number, perform the measurement in a subsequent measurement period.23.The first apparatus of any of claims 1-22, wherein the first apparatus is a terminal device, and the second apparatus is a network device.24.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 to:transmit, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block;transmit, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of:condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, orpower information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; andreceive, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.25.The second apparatus of claim 24, wherein the condition information that comprising a scheduling restriction, and the scheduling restriction indicates at least one of:the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a path loss reference signal,the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection,a power threshold for a synchronization signal block comprising a reference signal that is used for one of radio link monitoring, candidate beam detection, or beam failure detection,the uplink transmission shall be skipped on resources that overlaps in time-domain with resources allocated to a synchronization signal block comprising a reference signal used for a mobility measurement,the uplink transmission has a higher priority than that of a synchronization signal block comprising a reference signal for the mobility measurement,the number of measurements that shall be skipped to perform the uplink transmission,a cell quality condition and a mobility threshold for performing the uplink transmission,a quality threshold of a serving cell for performing the uplink transmission,a quality threshold of a neighbor cell for performing the uplink transmission, ora difference quality threshold between the serving cell and the neighbor cell for performing the uplink transmission.26.The second apparatus of any of claims 24-25, wherein the power information indicates at least one of:a maximum transmission power level for the uplink transmission,a power reduction factor for the uplink transmission, ora factor for reducing a reception power of the uplink transmission at the second apparatus.27.The second apparatus of any of claims 24-26, wherein the second apparatus is further caused to:transmit, to the first apparatus, a third configuration associated with a measurement on the first set of resources, wherein the third configuration indicates at least one of a list of reference signals to be measured with lower priority than other reference signals, power threshold information for triggering a measurement report, the number of skipped measurements; andreceive the measurement report from the first apparatus based on the third configuration.28.The second apparatus of claim 27, wherein the power threshold information indicates at least one of:another quality threshold of a serving cell for triggering the measurement report,another quality threshold of a neighbor cell for triggering the measurement report, oranother difference quality threshold between the serving cell and the neighbor cell for triggering the measurement report.29.The second apparatus of any of claims 24-28, wherein the first apparatus is a terminal device, and the second apparatus is a network device.30.A method comprising:receiving, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block;obtaining a second configuration associated with the uplink transmission comprising at least one of:condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, orpower information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; andperforming, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.31.A method comprising:transmitting, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block;transmitting, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of:condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, orpower information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; andreceiving, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.32.A first apparatus comprising:means for receiving, from a second apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates that an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block;means for obtaining a second configuration associated with the uplink transmission comprising at least one of:condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, orpower information for performing the uplink transmission on the second set of resources that overlaps the first set of resources allocated to the synchronization signal block; andmeans for performing, based on the second configuration, the uplink transmission with the second apparatus on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block.33.A second apparatus comprising:means for transmitting, to a first apparatus, a first configuration associated with a subband full duplex, SBFD, operation, wherein the first configuration indicates an uplink transmission in the SBFD operation in time-domain overlaps with a first set of resources allocated to a synchronization signal block;means for transmitting, to the first apparatus, a second configuration associated with the uplink transmission comprising at least one of:condition information for performing the uplink transmission on a second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block, orpower information for performing the uplink transmission on the second set of resources that overlaps in time-domain with the first set of resources allocated to the synchronization signal block; andmeans for receiving, based on the second configuration, the uplink transmission from the first apparatus on the second set of resources that overlap in time-domain with the first set of resources allocated to the synchronization signal block.34.A computer readable medium comprising instructions stored thereon for causing an apparatus at least to perform the method of claim 30 or 31.