Method and apparatus for performing measurements by a terminal device

Abstract

Embodiments of the present disclosure provide a method and apparatus for performing measurement by a terminal device. An apparatus (10) operating as a terminal device includes at least one processor (102) and at least one memory (104) including computer program code. The at least one memory (104) and the computer program code are configured to, with the at least one processor (102), cause the apparatus (10) operating as a terminal device at least to perform: receiving, from a network entity, a first configuration of a measurement resource; receiving, from the network entity, a second configuration of a measurement method; and performing a measurement based at least on the first configuration and the second configuration. According to embodiments of the present disclosure, uncertainty of the measurement method can be avoided.

Description

Technical Field

[0001] The various exemplary embodiments disclosed herein relate generally to communication technologies, and more specifically to methods and apparatus for performing measurements by a terminal device. Background Technology

[0002] In communication networks, different types of measurements should be performed to assess the communication channel conditions. For example, terminal equipment should perform measurements on the uplink and / or downlink channels to determine if there is interference from any other devices. Different measurement methods can be used in different channels, such as using different methods in the uplink or downlink channels.

[0003] However, with the development of technologies for flexibly allocating communication resources within a communication period, even during a single period used to generate a measurement report, measurement resources may overlap with different types of channels from time to time, or with more than one type of channel simultaneously. Therefore, it can be difficult to determine which measurement method to use. Summary of the Invention

[0004] This summary is provided to present a simplified version of some aspects, which will be further described in the detailed description below. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0005] Certain aspects of this disclosure and its embodiments can provide solutions to these or other challenges. Various embodiments for addressing one or more problems disclosed herein are presented. Specific methods and apparatus for performing measurements by a terminal device can be provided.

[0006] A first aspect of this disclosure provides an apparatus operating as a terminal device, the apparatus comprising: at least one processor; and at least one memory including computer program code. The at least one memory and the computer program code are configured, together with the at least one processor, such that the apparatus operating as a terminal device performs at least: a first configuration for receiving measurement resources from a network entity; a second configuration for receiving a measurement method from the network entity; and performing a measurement based at least on the first and second configurations. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first or second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0007] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of physical resource blocks (PRBs); the transmission resources include subband full-duplex (SBFD) resources; the second configuration indicates a first measurement method or a second measurement method; a first type is associated with the first measurement method, or a second type is associated with the second measurement method; and the measurement includes a measurement for cross-link interference received signal strength indication (CLI-RSSI).

[0008] In an exemplary embodiment of this disclosure, the first subband of the first type is a downlink DL subband, the second subband of the second type is an uplink UL subband; the terminal device includes a user equipment (UE); and the network entity includes an access network node.

[0009] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the means operating as a terminal device to at least: receive a third configuration from a network entity a minimum number of PRBs valid for measuring samples; determine whether the number of consecutive PRBs overlapping with subbands of a type associated with a measurement method among at least a plurality of PRBs is equal to or greater than a minimum number; and if the number of consecutive PRBs is greater than the minimum number, perform a measurement on at least the consecutive PRBs.

[0010] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the means operating as a terminal device to at least perform: measurements on multiple sets of consecutive PRBs among a plurality of PRBs. Each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0011] In an exemplary embodiment of this disclosure, the first configuration includes an index for the starting physical resource block (PRB) and the number of PRBs; the first configuration and the second configuration are received from the network entity in the same or different messages; the first configuration is included in the measurement resource configuration; and the second configuration is included in the measurement resource configuration or the reporting configuration.

[0012] A second aspect of this disclosure provides an apparatus operating as a network entity, the apparatus comprising: at least one processor; and at least one memory including computer program code. The at least one memory and the computer program code are configured, together with the at least one processor, such that the apparatus operating as a network entity performs at least: a first configuration for sending measurement resources to a terminal device; and a second configuration for sending a measurement method to the terminal device. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0013] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of physical resource blocks (PRBs); the transmission resources include subband full-duplex (SBFD) resources; the second configuration indicates a first measurement method or a second measurement method; a first type is associated with the first measurement method, or a second type is associated with the second measurement method; and the measurement includes a measurement for cross-link interference received signal strength indication (CLI-RSSI).

[0014] In an exemplary embodiment of this disclosure, the first subband of the first type is a downlink DL subband, the second subband of the second type is an uplink UL subband; the terminal device includes a user equipment (UE); and the network entity includes an access network node.

[0015] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the means operating as a network entity to at least perform: a third configuration of sending a minimum number of PRBs for valid measurement samples to a terminal device. If the number of consecutive PRBs overlapping with subbands associated with the type of measurement among at least a plurality of PRBs is equal to or greater than the minimum number, then a measurement is performed on at least the consecutive PRBs.

[0016] In an exemplary embodiment of this disclosure, the terminal device performs measurements on multiple sets of consecutive PRBs among a plurality of PRBs; each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0017] In an exemplary embodiment of this disclosure, the first configuration includes an index for the starting physical resource block (PRB) and the number of PRBs; the first configuration and the second configuration are received from the network node in the same or different messages; the first configuration is included in the measurement resource configuration; and the second configuration is included in the measurement resource configuration or the reporting configuration.

[0018] A third aspect of this disclosure provides a method performed by an apparatus operating as a terminal device, the method comprising: receiving a first configuration of measurement resources from a network entity; receiving a second configuration of a measurement method from the network entity; and performing a measurement based at least on the first and second configurations. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first or second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0019] In exemplary embodiments of this disclosure, the method is performed by means of any embodiment of the first aspect.

[0020] A fourth aspect of this disclosure provides a method performed by means of an apparatus operating as a network entity, the method comprising: sending a first configuration of measurement resources to a terminal device; and sending a second configuration of a measurement method to the terminal device. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0021] In exemplary embodiments of this disclosure, the method is performed by means of any embodiment of the second aspect.

[0022] A fifth aspect of this disclosure provides a computer-readable storage medium storing instructions that, when executed by at least one processor of a device, cause the at least one processor of the device to perform at least the method according to any of the above embodiments.

[0023] According to embodiments of this disclosure, exemplary embodiments of this disclosure provide a method and apparatus for performing measurements by a terminal device. Through a specific configuration of the measurement method from a network entity, the terminal device will know which method to use even when measurement resources may overlap with different types of subbands.

[0024] A sixth aspect of this disclosure provides an apparatus operating as a terminal device, the apparatus comprising: at least one processor; and at least one memory including computer program code. The at least one memory and the computer program code are configured, together with the at least one processor, such that the apparatus operating as a terminal device performs at least: receiving a first configuration of measurement resources from a network entity; determining a measurement method; and performing a measurement at least based on the first configuration and the measurement method. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first subband and the second subband.

[0025] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of Physical Resource Blocks (PRBs). The transmission resources include sub-band full-duplex (SBFD) resources. The measurement method is either a first measurement method or a second measurement method. A first type is associated with the first measurement method, or a second type is associated with the second measurement method. The measurement includes a measurement for Cross-Link Interference Received Signal Strength Indication (CLI-RSSI). The first sub-band of the first type is a downlink DL sub-band. The second sub-band of the second type is an uplink UL sub-band. The first configuration includes an index for the initial Physical Resource Block (PRB) and the number of PRBs. The terminal device includes a User Equipment (UE). The network entity includes an access network node.

[0026] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the apparatus operating as a terminal device to at least: determine a first measurement method when multiple PRBs are in a first subband of a first type; or determine a second measurement method when multiple PRBs are in a second subband of a second type.

[0027] In an exemplary embodiment of this disclosure, the first configuration at least indicates a first measurement resource and a second measurement resource; the first measurement resource includes a first plurality of PRBs, and the second measurement resource includes a second plurality of PRBs; the first plurality of PRBs are all in a subband of a first type or a subband of a second type, and the second plurality of PRBs overlap with a subband of the first type and a second subband of the second type; and the terminal device determines the measurement method for the second plurality of PRBs to be the same as the measurement method for the first plurality of PRBs.

[0028] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the apparatus operating as a terminal device to at least: receive a third configuration from a network entity for measuring a minimum number of valid PRBs; determine a first measurement method when the number of consecutive PRBs overlapping with the first self-contained band in the SBFD resource is equal to or greater than the minimum number; and determine a second measurement method when there are no consecutive PRBs overlapping with the first self-contained band in the SBFD resource and the number is equal to or greater than the minimum number.

[0029] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the means operating as a terminal device to at least: set the measurement method to assume that measurements will be used during a subsequent time period; and / or perform measurements on multiple sets of consecutive PRBs among a plurality of PRBs. Each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0030] A seventh aspect of this disclosure provides an apparatus operating as a network entity, the apparatus comprising: at least one processor; and at least one memory including computer program code. The at least one memory and the computer program code are configured, together with the at least one processor, such that the apparatus operating as a network entity performs at least: sending a first configuration of measurement resources to a terminal device; and receiving measurement results from the terminal device. The terminal device determines a measurement method based at least on the first configuration. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first subband and the second subband.

[0031] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of Physical Resource Blocks (PRBs); the transmission resources include Subband Full-Duplex (SBFD) resources; the measurement method is a first measurement method or a second measurement method; a first type is associated with the first measurement method, or a second type is associated with the second measurement method; the measurement includes a measurement for Cross-Link Interference Received Signal Strength Indication (CLI-RSSI); the first subband of the first type is a downlink DL subband, and the second subband of the second type is an uplink UL subband; the measurement includes a measurement for Cross-Link Interference Received Signal Strength Indication (CLI-RSSI); the first configuration includes an index for the initial Physical Resource Block (PRB) and the number of PRBs; the terminal device includes a User Equipment (UE); and the network entity includes an access network node.

[0032] In an exemplary embodiment of this disclosure, when multiple PRBs are all in a first subband of a first type, the terminal device determines a first measurement method; or when multiple PRBs are all in a second subband of a second type, the terminal device determines a second measurement method.

[0033] In an exemplary embodiment of this disclosure, the first configuration at least indicates a first measurement resource and a second measurement resource; the first measurement resource includes a first plurality of PRBs, and the second measurement resource includes a second plurality of PRBs; the first plurality of PRBs are all in a first type of subband or a second type of subband, and the second plurality of PRBs overlap with the first type of subband and the second type of subband; and the terminal device determines the measurement method for the second plurality of PRBs to be the same as the measurement method for the first plurality of PRBs.

[0034] In an exemplary embodiment of this disclosure, the at least one memory and computer program code are further configured, together with the at least one processor, to cause the means operating as a network entity to at least perform: a third configuration of sending a minimum number of PRBs for validating measurement samples to the terminal device. When the number of consecutive PRBs overlapping with the first subband in the SBFD resource among at least a plurality of PRBs is equal to or greater than the minimum number, the terminal device determines a first measurement method; and when there are no consecutive PRBs overlapping with the first subband in the SBFD resource among a plurality of PRBs whose number is equal to or greater than the minimum number, the terminal device determines a second measurement method.

[0035] In an exemplary embodiment of this disclosure, the terminal device configures the measurement method to assume that measurements will be taken during a subsequent time period; and / or the terminal device performs measurements on multiple sets of consecutive PRBs among a plurality of PRBs. Each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0036] An eighth aspect of this disclosure provides a method performed by an apparatus operating as a terminal device, the method comprising: receiving a first configuration of measurement resources from a network entity; determining a measurement method; and performing a measurement based at least on the first configuration and the measurement method. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first subband and the second subband.

[0037] In exemplary embodiments of this disclosure, the method is performed by means of any embodiment of the first aspect.

[0038] A ninth aspect of this disclosure provides a method performed by means of an apparatus operating as a network entity, the method comprising: sending a first configuration of measurement resources to a terminal device; and receiving measurement results from the terminal device. The terminal device determines a measurement method based at least on the first configuration. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first subband and the second subband.

[0039] In exemplary embodiments of this disclosure, the method is performed by means of any embodiment of the second aspect.

[0040] The tenth aspect of this disclosure provides a computer-readable storage medium storing instructions that, when executed by at least one processor of a device, cause the at least one processor of the device to perform at least the method according to any of the above embodiments.

[0041] According to embodiments of this disclosure, exemplary embodiments of this disclosure provide a method and apparatus for performing measurements by a terminal device. The terminal device can determine the measurement method itself, so that even when measurement resources may overlap with different types of subbands, the terminal device will know which method to use. Attached Figure Description

[0042] The above and other aspects, features, and benefits of various embodiments of this disclosure will become more apparent by way of example from the following detailed description with reference to the accompanying drawings, wherein like reference numerals or letters are used to denote like or equivalent elements. The drawings are shown to facilitate a better understanding of embodiments of this disclosure and are not necessarily drawn to scale. In the drawings:

[0043] Figure 1 This is a diagram showing a high-level comparison between SBFD and traditional TDD or FDD operations;

[0044] Figure 2 This is a diagram illustrating an example of SBFD configuration and related terminology;

[0045] Figure 3 This is a diagram illustrating the types of cross-link interference in a co-channel SBFD deployment;

[0046] Figure 4 This is a diagram illustrating the UE-to-UE CLI measurement method;

[0047] Figure 5 This is a diagram showing a portion of 3GPP Technical Specification (TS) version 38.331, version 18.4.0.

[0048] Figure 6This is a diagram showing how CLI-RSSI resources are configured within the DL subband;

[0049] Figure 7 This is a diagram showing how CLI-RSSI resources are configured within the UL subband;

[0050] Figure 8 This is a diagram showing CLI-RSSI resources across DL and UL subbands;

[0051] Figure 9 This shows the dynamic SBFD from the time slot. k Time slot k+1 A diagram showing the UL subband bandwidth halved;

[0052] Figure 10 This is a block diagram illustrating an exemplary structure of an apparatus operating as a terminal device according to an exemplary embodiment of the present disclosure;

[0053] Figure 11A This is a flowchart illustrating a method performed by an apparatus operating as a terminal device according to an embodiment of the present disclosure;

[0054] Figure 11B This illustrates an embodiment according to the present disclosure. Figure 11A Flowcharts of the other steps of the method shown;

[0055] Figure 11C This illustrates an embodiment according to the present disclosure. Figure 11A Flowcharts of the other steps of the method shown;

[0056] Figure 12A This is a flowchart illustrating a method performed by an apparatus operating as a terminal device according to an embodiment of the present disclosure;

[0057] Figure 12B This illustrates an embodiment according to the present disclosure. Figure 12A Flowcharts of the other steps of the method shown;

[0058] Figure 12C This illustrates an embodiment according to the present disclosure. Figure 12A Flowcharts of the other steps of the method shown;

[0059] Figure 12D This illustrates an embodiment according to the present disclosure. Figure 12A Flowcharts of the other steps of the method shown;

[0060] Figure 13 This is a block diagram illustrating an exemplary structure of an apparatus operating as a network entity according to an exemplary embodiment of the present disclosure;

[0061] Figure 14AThis is a flowchart illustrating a method performed by an apparatus operating as a network entity according to an embodiment of the present disclosure;

[0062] Figure 14B This illustrates exemplary embodiments according to this disclosure. Figure 14A Flowcharts of the other steps of the method shown;

[0063] Figure 15A This is a flowchart illustrating a method performed by an apparatus operating as a network entity according to an embodiment of the present disclosure;

[0064] Figure 15B This illustrates exemplary embodiments according to this disclosure. Figure 15A Flowcharts of the other steps of the method shown;

[0065] Figure 16 This is a block diagram illustrating an apparatus / computer-readable storage medium according to embodiments of the present disclosure;

[0066] Figure 17A This is a block diagram illustrating exemplary device units of a terminal device suitable for performing methods according to embodiments of the present disclosure;

[0067] Figure 17B This is a block diagram illustrating exemplary device units of a terminal device suitable for performing methods according to embodiments of the present disclosure;

[0068] Figure 18A This is a block diagram illustrating exemplary device units of a network entity suitable for performing methods according to embodiments of the present disclosure;

[0069] Figure 18B This is a block diagram illustrating exemplary device units of a network entity suitable for performing methods according to embodiments of the present disclosure;

[0070] Figure 19 This is a diagram illustrating an exemplary flowchart of a gNB explicit instruction for a UE-to-UE CLI measurement method;

[0071] Figure 20 This is a diagram illustrating an exemplary flowchart derived from the UE according to a UE-to-UE CLI method based on specific rules;

[0072] Figure 21 This is a diagram used to determine the UE decision for measurement methods;

[0073] Figure 22A , Figure 22B , Figure 22C It is shown that... Figure 21 The diagram shows the resource allocation corresponding to some of the situations shown;

[0074] Figure 23AIt is a graph used by the UE to make decisions regarding measurement methods for multiple measurement resources; and

[0075] Figure 23B It is a diagram used by the UE to make decisions about the measurement methods for multiple measurement resources. Detailed Implementation

[0076] Embodiments of this disclosure are described in detail with reference to the accompanying drawings. It should be understood that these embodiments are discussed only for a better understanding and not for limiting the scope of this disclosure. The features, advantages, and characteristics described in this disclosure may be combined in any suitable manner in one or more embodiments.

[0077] Generally, all terms used herein should be interpreted according to their ordinary meaning in the relevant art, unless a different meaning is expressly given and / or implied. Unless the context expressly gives and / or implies, the steps of any method disclosed herein need not be performed in the exact order disclosed. Any feature of any embodiment disclosed herein may be applied to any other embodiment, wherever appropriate.

[0078] As used herein, the term "network" or "communication network" refers to a network that conforms to any suitable communication standard, such as the communication standard used for the Internet or any wireless network. For example, wireless communication standards may include WLAN (Wireless Local Area Network), New Radio (NR), Long Term Evolution (LTE), LTE-Advanced, 5G NR, 6G, etc. In the following description, the terms "network" and "system" are used interchangeably.

[0079] The term "entity / network entity" refers to a computing device, computing node, computing function, or any other device (physical or virtual) in a communication network. For example, a node in the network can include a base station (BS), an access point (AP), or any other suitable device in a wireless communication network. A BS can be, for example, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a next-generation Node B (gNodeB or gNB), a remote radio unit (RRU), a radio header (RH), a remote radio headend (RRH), a relay, a low-power node (such as a femtosecond or picosecond), etc. Furthermore, a node can include other core network nodes, such as the Access and Mobility Management Function (AMF), the Session Management Function (SMF), the User Plane Function (UPF), the Mobility Management Entity (MME), or the Serving Gateway (S-GW), etc.

[0080] The term "terminal device" refers to any terminal device that can access a communication network and receive services from it. By way of example and not limitation, a terminal device refers to a mobile terminal, user equipment (UE), non-AP device (such as a non-AP station (STA)), or other suitable device. Terminal devices can include, but are not limited to, mobile phones, cellular phones, smartphones, wearable devices, in-vehicle wireless terminal equipment, vehicles, etc.

[0081] As an example, a terminal device can refer to a device configured for communication according to one or more communication standards promulgated by any standards organization, such as the 3rd Generation Partnership Project (3GPP).

[0082] As another example, in the Internet of Things (IoT) scenario, a terminal device can represent a machine or other device that performs monitoring and / or measurement and sends the results of such monitoring and / or measurement to another terminal device and / or network device. Specific examples of such machines or devices are sensors, metering devices such as power meters, industrial machinery or household or personal appliances (e.g., refrigerators, televisions), personal wearable devices such as watches, etc. In other scenarios, a terminal device can represent a vehicle or other device capable of monitoring and / or reporting its operational status or other functions associated with its operation.

[0083] It should be understood that although the terms “first” and “second” may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of the exemplary embodiments, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed terms.

[0084] As used herein, “at least one of the following: ” and “at least one of ” and similar wording (where the list of two or more elements is connected by “and” or “or”) means at least any one of these elements, or at least any two or more of these elements, or at least all of these elements.

[0085] As an example for illustration only, terminal devices in a communication network can measure and report User Equipment (UE) to UE Cross-Link Interference (CLI). Furthermore, an example for the relatively flexible allocation of communication resources could be Subband Full-Duplex (SBFD).

[0086] Figure 1 This is a diagram showing an advanced comparison between SBFD and conventional TDD or FDD operations.

[0087] In 3GPP Release 19 (3rd Generation Partnership Project), Subband Full-Duplex (SBFD) was designated as a new operating mode in unpaired spectrum, where a single set of resource blocks (RBs) within a time-division duplex (TDD) carrier is used simultaneously for both uplink (UL) and downlink (DL) transmissions. Its aim is to allow for more UL transmission opportunities compared to the typical DL-dense TDD configurations used in today's TDD deployments. This brings benefits in terms of UL coverage and UL latency, particularly in wide-area macro networks where many user equipments (UEs) are power-limited in the UL direction.

[0088] Figure 1 The document presents an advanced comparison between SBFD and conventional TDD or Frequency Division Duplex (FDD) operations.

[0089] In traditional TDD or FDD, DL and UL are clearly separated by time protection or frequency protection. However, in FDU (Flexible Duplex, which is another term for SBFD operation), DL and UL appear to overlap.

[0090] Figure 2 This is a diagram illustrating an example of SBFD configuration and related terminology.

[0091] A study on SBFD was conducted in Rel-18 of the Radio Access Network (RAN) 1 and RAN4 working groups, while specification work began in R19 of RAN1 in February 2024 and is still ongoing.

[0092] The following are some of the advanced principles of SBFD operation agreed upon by RAN1 in the Study Project (SI) phase (Technical Report (TR) 38.828 V 16.1.0): • Simultaneous transmission and reception are assumed on the gNB side (on non-overlapping RB sets), while half-duplex operation is assumed on the UE side. RAN1 is currently specifying UE behavior to handle conflicts and priorities between UL and DL channels. • A TDD carrier contains only one UL subband, while it contains one or at most two DL subbands. These are typically referred to as down-to-up (D) (or UD) or DUD operations, respectively—see Figure 2 . ○ SBFD subband is defined as one or more consecutive RBs to be used in the same transmission direction (UL or DL). • UL transmission occurs only within the UL subband, while DL reception occurs only within (multiple) DL subbands. •SBFD-aware UE is used to refer to a UE that supports (at least some) SBFD-related features that are to be standardized in Rel-19. • As a baseline, it is assumed that the SBFD-aware UE knows both the time and frequency location of the subband used for SBFD operation, which is not available to traditional (pre-Rel-19) UEs. • Traditional UEs are unaware of SBFD operations and therefore behave similarly to current TDD systems. The Rel-18 study concludes that, from the perspective of the RAN1 specification, non-SBFD-aware UEs (including traditional UEs) and SBFD-aware UEs can coexist in cells with SBFD operations on the gNB side.

[0093] Figure 2 An example arrangement of UL and DL resources for both DU / UD (left, (A)) and DUD (right, (B)) SBFD operations is shown. An SBFD symbol (or slot) refers to a symbol (or slot) in which UL and one or more DL subbands are available simultaneously, while a non-SBFD symbol refers to a (traditional) unidirectional symbol. RAN1 discusses different time-domain sequences in TR 38.858 version 18.2.0, such as DXXXU, XXXXX, or XXXXU, where D, U, and X refer to downlink, uplink, and SBFD slots, respectively (one slot corresponds to 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols). One or more RBs can be used as guard bands between UL and DL subbands to facilitate suppression of cross-link interference; similarly, guard times or periods of one or more OFDM symbols can be used for transitions between different symbol / slot types.

[0094] SBFD is considered one of the "first day" features of the sixth generation (6G).

[0095] At the Rel-19 workshop, companies presented their preferred views on continuing duplex evolution research, which may influence their perspectives on upcoming releases. Among these options, companies proposed extending the SBFD concept to the UE (both the gNB and UE are full-duplex in non-overlapping resources), and achieving approximately full-duplex on both the gNB and UE sides.

[0096] CLI can also be considered in SBFD operations.

[0097] Figure 3 This is a diagram illustrating the types of cross-link interference in a co-channel SBFD deployment.

[0098] like Figure 3 As shown, SBFD introduces a new type of CLI, namely, inter-band CLI from non-overlapping frequency resources within the same channel. Depending on the source of the interference, this interference can be better classified as: 1. gNB self-interference. 2. CLI between UEs on the same channel within the cell. 3. Inter-UE CLI on the same channel subband between UEs within a small interval. 4. gNB to gNB co-channel subband CLI.

[0099] In addition to these new CLI types, when the frequency domain allocation in adjacent cells differs, the system may also be affected by co-channel CLI transmissions on overlapping frequency resources: 5. GNB-to-GNB inter-channel CLI from overlapping frequency resources. 6. UE-to-UE inter-channel CLI from overlapping frequency resources.

[0100] Regarding UE-to-UE CLI measurements, 3GPP recently agreed to support Layer 1 (L1) UE-to-UE CLI measurements and reuse the Channel State Information (CSI) framework for measurement resource configuration and reporting.

[0101] Figure 4 This is a diagram illustrating the UE-to-UE CLI measurement method.

[0102] Figure 4 The following methods are shown: Method #1: UE measures RSSI in DL subband; Method #2: UE measures RSRP of attacker UE in UL subband; Method #3: UE measures RSSI in UL subband; Method #4: Measurement resources in guard band, not yet supported.

[0103] The 3GPP discussion has reached a consensus on three different methods for measuring UE to UE CLI. The main difference between the two methods is whether the UE measures the Received Signal Strength Indicator (SRS-RSRP) or the Received Signal Strength Indicator (RSSI) of CLI, and whether these measurements are performed on DL resources or UL resources in the SBFD time slot.

[0104] In RAN1#120, the following text was updated to obtain support for method #3:

[0105] The UE behavior used for measurement will be continuously improved.

[0106] For embodiments of this disclosure, the following protocol regarding the UE is also relevant, which is specifically configured to measure CLI according to method #1 or method #3 within a given CSIReport-Config (see the above protocol (RAN1#119)):

[0107] Additionally, it is important to note that CLI-RSSI supports both periodic and non-periodic reporting. Therefore, CLI-RSSI resources can be configured as periodic, semi-persistent, and non-periodic.

[0108] Some embodiments of this disclosure are for periodic and semi-persistent CLI-RSSI measurement resources.

[0109] As described above, the UE can use methods #1 and #3 to measure CLI-RSSI. The main difference between these two methods is whether the UE needs to perform the measurement on CLI-RSSI resources overlapping within the DL subband (Method #1) or on CLI-RSSI resources overlapping within the UL subband (Method #3). It should be noted that CLI-RSSI measurement resources are configured with specific “startPRB” and “nrOfPRBs”, i.e., bandwidth. Therefore, CLI-RSSI measurement resources can overlap with both DL and UL subbands. This may create ambiguity at the UE regarding the measurement method to be used.

[0110] Other exemplary terms / concepts may also be used to describe resources, such as Virtual Resource Block (VRB), Resource Block (RB), subcarrier in a frequency, Open Time = 1 OFDM symbol, or Transmission Time Interval (TTI) size, etc.

[0111] Figure 5 This is a diagram showing a portion of 3GPP Technical Specification (TS) version 38.331, version 18.4.0.

[0112] like Figure 5 The definition for “startPRB” and “nrOfPRBs” is shown below. This section can also be found in the European Telecommunications Standards Institute (ETSI) TS 138 331 V 18.4.0 (2025-01).

[0113] Figure 6 , Figure 7 , Figure 8 , Figure 9 These are diagrams illustrating several examples of how to configure CLI-RSSI.

[0114] When a CLI-RSSI measurement resource is configured within a single DL or UL subband, it will be measurement resource type #1 according to the 3GPP protocol.

[0115] Figure 6 This is a diagram showing how CLI-RSSI resources are configured within the DL subband. Therefore, method #1 is used.

[0116] Figure 7 This is a diagram showing how CLI-RSSI resources are configured within the UL subband. Therefore, method #3 is used.

[0117] When CLI-RSSI measurement resources are configured across two DL subbands, it will be measurement resource type #2 according to the 3GPP protocol.

[0118] Figure 8 This is a diagram showing CLI-RSSI resources across the DL and UL subbands. It is currently unclear what the UE's behavior should be.

[0119] Figure 9 This shows the dynamic SBFD from the time slot. k Time slot k+1 (that is, from) Figure 9 (From left to right) A diagram showing the UL subband bandwidth halved.

[0120] In the time slot k In this context, RRSI is located in the UL subband. However, in the time slot... k+1 In this context, RRSI spans both the DL and UL subbands. Therefore, it remains unclear what the UE's behavior should be.

[0121] If the concept of dynamic SBFD is adopted in 6G, the problems to be solved become more complex. Dynamic SBFD refers to a mechanism in which the network can decide whether to increase or decrease the bandwidth of the UL subband on a time slot basis. Dynamic SBFD also allows SBFD time slots to be converted into DL-only time slots by dynamically indicating that the UL subband size is equal to 0 PRB. Figure 9 An example of dynamic SBFD is shown in the figure.

[0122] If 6G allows for different UL subband sizes to be defined for different SBFD time slots, it may also face a similar situation.

[0123] For the discussion of Rel-19, defining this behavior may suffice: ○ If CLI-RSSI spans DL subbands or is configured within a single DL subband  Method #1 ○ If CLI-RSSI is restricted to the UL subband  Method #3

[0124] However, this simple behavior does not apply to dynamic SBFD or different SBFD slots with different subband sizes. For example, RSSI can be restricted to a specific slot. k Within the UL subband, but if different SBFD configurations or dynamic SBFD are allowed to change the UL subband size, it can be across time slots. k+n The DL subband configuration is the same as RSSI.

[0125] The embodiments disclosed herein provide some example solutions to these problems.

[0126] Figure 10 This is a block diagram illustrating an exemplary structure of an apparatus operating as a terminal device according to an exemplary embodiment of the present disclosure.

[0127] like Figure 10 As shown, the apparatus 10 operating as a terminal device includes at least one processor 102 and at least one memory 104, the at least one memory 104 including computer program code. The at least one memory 104 and the computer program code are configured, together with the at least one processor 102, to cause the apparatus 10 operating as a terminal device to perform at least one of the methods according to the following embodiments, such as... Figures 11A-11C , Figures 12A-12D , Figures 19-23B As shown.

[0128] Figure 11A This is a flowchart illustrating a method performed by an apparatus operating as a terminal device according to an embodiment of the present disclosure.

[0129] like Figure 11A As shown, method 110 includes: S1102, receiving a first configuration of measurement resources from a network entity; S1104, receiving a second configuration of a measurement method from a network entity; and S1106, performing a measurement based at least on the first and second configurations. The measurement resources may reside in transmission resources. The transmission resources may include at least a first subband of a first type and a second subband of a second type. One of the first or second type may be associated with the measurement method. The measurement resources may overlap with at least one of the first and second subbands.

[0130] According to embodiments of this disclosure, exemplary embodiments of this disclosure can provide a method and apparatus for performing measurements by a terminal device. Through specific configuration of the measurement method from a network entity, the terminal device knows which method to use even when measurement resources may overlap with different types of subbands.

[0131] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of physical resource blocks (PRBs); the transmission resources include subband full-duplex (SBFD) resources; the second configuration indicates a first measurement method or a second measurement method; a first type is associated with the first measurement method, or a second type is associated with the second measurement method; and the measurement includes a measurement for cross-link interference received signal strength indication (CLI-RSSI).

[0132] According to embodiments of this disclosure, the proposed method and apparatus can be applied to measuring CLI-RSSI in measurement resources allocated within SBFD resources. Furthermore, it should be understood that the proposed method and apparatus can also be applied to other scenarios.

[0133] In an exemplary embodiment of this disclosure, the first subband of the first type is a downlink DL subband, the second subband of the second type is an uplink UL subband; the terminal device includes a user equipment (UE); and the network entity includes an access network node.

[0134] In an exemplary embodiment of this disclosure, in order to perform measurements based at least on a first configuration and a second configuration, the terminal device may determine the effective portion of the measurement resources at least according to the indicated method.

[0135] For example, an SBFD time slot can consist of the following: [0-19] --> DL subband, [20-29] --> UL subband, and [30-50] --> DL subbands. A CLI-RSSI with bandwidth [5-45] and method #1 indication can be indicated to the UE. The UE then determines the valid portion of the measurement resource as the portion overlapping with the DL subband: [5-19] + [30-45]. Measurements can be performed on any one or all of [5-19] and [30-45].

[0136] Figure 11B This illustrates an embodiment according to the present disclosure. Figure 11A A flowchart of the other steps of the method shown.

[0137] like Figure 11B As shown, method 110 may further include: S1108, receiving a third configuration from a network entity for a minimum number of valid PRBs for measurement samples; S1110, determining whether the number of at least consecutive PRBs overlapping with subbands of a type associated with a measurement method among a plurality of PRBs is equal to or greater than a minimum number; S1112, if the number of consecutive PRBs is greater than the minimum number, then performing a measurement on at least the consecutive PRBs.

[0138] According to embodiments of this disclosure, a minimum number can be configured. Therefore, measurement results will be generated based at least on a minimum number of consecutive PRBs, which can provide more accurate and reliable measurement results.

[0139] Figure 11C This illustrates an embodiment according to the present disclosure. Figure 11A A flowchart of the other steps of the method shown.

[0140] like Figure 11CAs shown, method 110 further includes: S1114, performing measurements on multiple sets of consecutive PRBs among a plurality of PRBs. Each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0141] According to embodiments of this disclosure, if more than one set of consecutive PRBs overlaps with subbands associated with a type of measurement method, then measurements can be performed based on more than one set of consecutive PRBs. For example, a measurement result can come from each set of consecutive PRBs. The more than one measurement result can then be averaged (weighted or unweighted) to generate a value to be reported.

[0142] In an exemplary embodiment of this disclosure, the first configuration includes an index for the starting physical resource block (PRB) and the number of PRBs; the first configuration and the second configuration are received from the network entity in the same or different messages; the first configuration is included in the measurement resource configuration; and the second configuration is included in the measurement resource configuration or the reporting configuration.

[0143] According to embodiments of this disclosure, the measurement method can be indicated as part of a measurement resource configuration. The measurement method can be represented as a standalone message.

[0144] Furthermore, the measurement method can be specified as part of the reporting configuration. This option will also follow the Channel State Information (CSI) framework. For example, CSI-ResourceConfig defines the measurement resources, and CSI-ReportConfig defines how the measurement should be performed. For instance, it can instruct the UE which metric should be measured or whether the measurement is broadband or per-subband.

[0145] Figure 12A This is a flowchart illustrating a method performed by an apparatus operating as a terminal device according to an embodiment of the present disclosure.

[0146] like Figure 12A As shown, method 120 may include: S1202, receiving a first configuration of measurement resources from a network entity; S1204, determining a measurement method; S1206, performing a measurement based at least on the first configuration and the measurement method. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0147] According to embodiments of this disclosure, exemplary embodiments of this disclosure provide a method and apparatus for performing measurements by a terminal device. The terminal device can determine the measurement method itself, so that even when measurement resources may overlap with different types of subbands, the terminal device knows which method to use.

[0148] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of Physical Resource Blocks (PRBs). The transmission resources include sub-band full-duplex (SBFD) resources. The measurement method is either a first measurement method or a second measurement method. A first type is associated with the first measurement method, or a second type is associated with the second measurement method. The measurement includes a measurement for Cross-Link Interference Received Signal Strength Indication (CLI-RSSI). The first sub-band of the first type is a downlink DL sub-band. The second sub-band of the second type is an uplink UL sub-band. The first configuration includes an index for the initial Physical Resource Block (PRB) and the number of PRBs. The terminal device includes a User Equipment (UE). The network entity includes an access network node.

[0149] According to embodiments of this disclosure, the proposed method and apparatus can be applied to measuring CLI-RSSI in measurement resources allocated within SBFD resources. Furthermore, it should be understood that the proposed method and apparatus can also be applied to other scenarios.

[0150] Figure 12B This illustrates an embodiment according to the present disclosure. Figure 12A A flowchart of the other steps of the method shown.

[0151] like Figure 12B As shown, method 120 further includes: S1208, determining a first measurement method when multiple PRBs are all in a first sub-band of a first type; or S1210, determining a second measurement method when multiple PRBs are all in a second sub-band of a second type.

[0152] According to an embodiment of the present invention, when the measurement resource is located in only one type of subband, the terminal device can directly determine the measurement method.

[0153] In an exemplary embodiment of this disclosure, the first configuration at least indicates a first measurement resource and a second measurement resource; the first measurement resource includes a first plurality of PRBs, and the second measurement resource includes a second plurality of PRBs; the first plurality of PRBs are all in a subband of a first type or a subband of a second type, and the second plurality of PRBs overlap with the subband of the first type and the second subband of the second type; and the terminal device determines the measurement method of the second plurality of PRBs to be the same as the measurement method of the first plurality of PRBs.

[0154] According to embodiments of this disclosure, multiple measurement resources can be configured as part of the same CSI-ReportConfig. Then, if a measurement method can be directly determined for at least one measurement resource (e.g., a first plurality of PRBs overlapping only with one type of subband), that measurement method can be directly applied to another, more complex measurement resource (e.g., a second plurality of PRBs overlapping with more than one type of subband).

[0155] Figure 12C This illustrates an embodiment according to the present disclosure. Figure 12A A flowchart of the other steps of the method shown.

[0156] like Figure 12C As shown, method 120 further includes: S1212, receiving from a network entity a third configuration for the minimum number of valid PRBs for measuring samples; S1214, determining a first measurement method when the number of consecutive PRBs overlapping with the first subband in the SBFD resource among at least a plurality of PRBs is equal to or greater than the minimum number; and S1216, determining a second measurement method when there are no consecutive PRBs overlapping with the first subband in the SBFD resource among a plurality of PRBs that are equal to or greater than the minimum number.

[0157] According to embodiments of this disclosure, a minimum number can be configured. Therefore, measurement results will be generated based at least on a minimum number of consecutive PRBs, which can provide more accurate and reliable measurement results.

[0158] Figure 12D This illustrates an embodiment according to the present disclosure. Figure 12A A flowchart of the other steps of the method shown.

[0159] like Figure 12D As shown, method 120 further includes: S1218, setting the measurement method to assume that it will be used for measurement during the next time period; and / or S1220, performing measurements on multiple sets of consecutive PRBs among a plurality of PRBs. Each set of PRBs in the plurality of consecutive PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs in the plurality of consecutive PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0160] According to embodiments of this disclosure, once a measurement method is determined, it can be used for at least a certain period of time in order to avoid differences caused by different types of measurement methods.

[0161] Furthermore, according to embodiments of this disclosure, if more than one set of consecutive PRBs overlaps with subbands associated with a type of measurement method, measurements can be performed based on more than one set of consecutive PRBs. For example, a measurement result can come from each set of consecutive PRBs. The more than one measurement result can then be averaged (weighted or unweighted) to generate a value to be reported.

[0162] Figure 13 This is a block diagram illustrating an exemplary structure of an apparatus operating as a network entity according to an exemplary embodiment of the present disclosure.

[0163] like Figure 13 As shown, the means 13 operating as a network entity includes: at least one processor 132; and at least one memory 134, which includes computer program code. The at least one memory 134 and the computer program code are configured, together with the at least one processor 132, such that the means 13 operating as a network entity performs at least any of the following embodiments, such as... Figures 14A-14B , Figures 15A-15B , Figures 19-23B As shown.

[0164] Figure 14A This is a flowchart illustrating a method performed by an apparatus operating as a network entity according to an embodiment of the present disclosure.

[0165] like Figure 14A As shown, method 140 includes: S1402, sending a first configuration of measurement resources to a terminal device; S1404, sending a second configuration of a measurement method to the terminal device. The measurement resources are located in transmission resources. The transmission resources include at least a first sub-band of a first type and a second sub-band of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first sub-band and the second sub-band.

[0166] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of physical resource blocks (PRBs); the transmission resources include subband full-duplex (SBFD) resources; the second configuration indicates a first measurement method or a second measurement method; a first type is associated with the first measurement method, or a second type is associated with the second measurement method; and the measurement includes a measurement for cross-link interference received signal strength indication (CLI-RSSI).

[0167] In an exemplary embodiment of this disclosure, the first subband of the first type is a downlink DL subband, the second subband of the second type is an uplink UL subband; the terminal device includes a user equipment (UE); and the network entity includes an access network node.

[0168] Figure 14B This illustrates exemplary embodiments according to this disclosure. Figure 14A A flowchart of the other steps of the method shown.

[0169] like Figure 14B As shown, method 140 includes: S1406, sending a third configuration to the terminal device for a minimum number of valid PRBs for the measurement sample. If the number of at least consecutive PRBs overlapping with the subband associated with the type of measurement among the multiple PRBs is equal to or greater than the minimum number, then a measurement is performed on at least the consecutive PRBs.

[0170] In an exemplary embodiment of this disclosure, the terminal device performs measurements on multiple sets of consecutive PRBs among a plurality of PRBs; each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0171] In an exemplary embodiment of this disclosure, the first configuration includes an index for the starting physical resource block (PRB) and the number of PRBs; the first configuration and the second configuration are received from the network node in the same or different messages; the first configuration is included in the measurement resource configuration; and the second configuration is included in the measurement resource configuration or the reporting configuration.

[0172] Figure 15A This is a flowchart illustrating a method performed by an apparatus operating as a network entity according to an embodiment of the present disclosure.

[0173] like Figure 15A As shown, method 150 includes: S1502, sending a first configuration of measurement resources to a terminal device; S1504, receiving measurement results from the terminal device. The terminal device determines a measurement method based at least on the first configuration. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first subband and the second subband.

[0174] In an exemplary embodiment of this disclosure, the measurement resources include a plurality of Physical Resource Blocks (PRBs); the transmission resources include Subband Full-Duplex (SBFD) resources; the measurement method is a first measurement method or a second measurement method; a first type is associated with the first measurement method, or a second type is associated with the second measurement method; the measurement includes a measurement for Cross-Link Interference Received Signal Strength Indication (CLI-RSSI); the first subband of the first type is a downlink DL subband, and the second subband of the second type is an uplink UL subband; the measurement includes a measurement for Cross-Link Interference Received Signal Strength Indication (CLI-RSSI); the first configuration includes an index for the initial Physical Resource Block (PRB) and the number of PRBs; the terminal device includes a User Equipment (UE); and the network entity includes an access network node.

[0175] In an exemplary embodiment of this disclosure, the terminal device determines a first measurement method when multiple PRBs are all in a first subband of a first type; or the terminal device determines a second measurement method when multiple PRBs are all in a second subband of a second type.

[0176] In an exemplary embodiment of this disclosure, the first configuration at least indicates a first measurement resource and a second measurement resource; the first measurement resource includes a first plurality of PRBs, and the second measurement resource includes a second plurality of PRBs; the first plurality of PRBs are all in a first type of subband or a second type of subband, and the second plurality of PRBs overlap with the first type of subband and the second type of subband; and the terminal device determines the measurement method for the second plurality of PRBs to be the same as the measurement method for the first plurality of PRBs.

[0177] Figure 15B This illustrates exemplary embodiments according to this disclosure. Figure 15A A flowchart of the other steps of the method shown.

[0178] like Figure 15B As shown, method 150 includes: S1506, sending a third configuration to the terminal device for a minimum number of valid PRBs for measurement samples. When the number of consecutive PRBs overlapping with a first subband in the SBFD resource among at least a plurality of PRBs is equal to or greater than the minimum number, the terminal device determines a first measurement method; and when there are no consecutive PRBs overlapping with a first subband in the SBFD resource among a plurality of PRBs whose number is equal to or greater than the minimum number, the terminal device determines a second measurement method.

[0179] In an exemplary embodiment of this disclosure, the terminal device configures the measurement method to assume that measurements will be taken during a subsequent time period; and / or the terminal device performs measurements on multiple sets of consecutive PRBs among a plurality of PRBs. Each set of PRBs overlaps with a subband associated with a type of measurement method; and each set of PRBs has a number of consecutive PRBs equal to or greater than a minimum number.

[0180] Processors 102 and 132 can be any type of processing component, such as one or more microprocessors or microcontrollers, as well as other digital hardware, which may include digital signal processors (DSPs), special-purpose digital logic, etc. Memory 104 and 134 can be any type of storage component, such as read-only memory (ROM), random access memory, cache memory, flash memory, optical storage device, etc.

[0181] Figure 16 This is a block diagram illustrating an apparatus / computer-readable storage medium according to embodiments of the present disclosure.

[0182] like Figure 16 As shown, computer-readable storage medium 160 stores instructions 161, which, when executed by at least one processor of a device operating as a terminal device or network entity, cause the at least one processor of the device to perform a method according to any of the above embodiments, such as... Figures 11A-11C , Figures 12A-12D , Figures 14A-14B , Figures 15A-15B , Figures 19-23B As shown.

[0183] Furthermore, this disclosure may also provide another carrier containing the aforementioned computer program / instructions. The carrier is an electronic signal, an optical signal, a radio signal, or one of the aforementioned computer-readable storage media. The computer-readable storage medium may be, for example, an optical disc or an electronic storage device such as RAM (Random Access Memory), ROM (Read-Only Memory), flash memory, magnetic tape, CD-ROM, DVD, Blu-ray disc, etc.

[0184] Figure 17A This is a block diagram illustrating exemplary device units of a terminal device suitable for performing methods according to embodiments of the present disclosure.

[0185] like Figure 17A As shown, terminal device 170 may include: a receiving unit 1702 configured to receive a first configuration of measurement resources from a network entity and a second configuration of a measurement method from the network entity; and an execution unit 1704 configured to perform a measurement based at least on the first and second configurations. The measurement resources are located within transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first or second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0186] In exemplary embodiments of this disclosure, terminal device 170 is also configured to perform methods according to any of the above embodiments, such as Figures 11A-11C , Figures 19-23B As shown.

[0187] Figure 17B This is a block diagram illustrating exemplary device units of a terminal device suitable for performing methods according to embodiments of the present disclosure.

[0188] like Figure 17BAs shown, the terminal device 170 may include: a receiving unit 1702 configured to receive a first configuration of measurement resources from a network entity; a determining unit 1706 configured to determine a measurement method; and an execution unit 1704 configured to perform a measurement based at least on the first configuration and the measurement method. The measurement resources are located within transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0189] In exemplary embodiments of this disclosure, terminal device 70 is also configured to perform methods according to any of the foregoing embodiments, such as Figures 12A-12D , Figures 19-23B As shown.

[0190] Figure 18A This is a block diagram illustrating exemplary device units of a network entity suitable for performing methods according to embodiments of the present disclosure.

[0191] like Figure 18A As shown, network entity 180 may include a sending unit 1802 configured to send a first configuration of measurement resources to a terminal device and a second configuration of a measurement method to the terminal device. The measurement resources are located within transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first or second type is associated with a measurement method. The measurement resources overlap with at least one of the first and second subbands.

[0192] In exemplary embodiments of this disclosure, network entity 80 is also configured to perform methods according to any of the foregoing embodiments, such as Figures 14A-14B , Figures 19-23B As shown.

[0193] Figure 18B This is a block diagram illustrating exemplary device units of a network entity suitable for performing methods according to embodiments of the present disclosure.

[0194] like Figure 18BAs shown, network entity 180 may include: a sending unit 1802 configured to send a first configuration of measurement resources to a terminal device; and a receiving unit 1804 configured to receive measurement results from the terminal device. The terminal device determines a measurement method based at least on the first configuration. The measurement resources are located in transmission resources. The transmission resources include at least a first subband of a first type and a second subband of a second type. One of the first type or the second type is associated with the measurement method. The measurement resources overlap with at least one of the first subband and the second subband.

[0195] In exemplary embodiments of this disclosure, network entity 80 is also configured to perform methods according to any of the foregoing embodiments, such as Figures 15A-15B , Figures 19-23B As shown.

[0196] The term "unit" may have a conventional meaning in the field of electronic, electrical and / or electronic equipment, and may include, for example, electrical and / or electronic circuit systems, devices, modules, processors, memories, logic solid-state and / or discrete devices, computer programs or instructions for performing corresponding tasks, processes, calculations, output and / or display functions, as described herein.

[0197] As used in this application, the term "circuit system" may refer to one or more or all of the following: (a) Hardware circuit implementation only (such as implementation only in analog and / or digital circuit systems); and (b) A combination of hardware circuitry and software, such as (if applicable): (i) A combination of (multiple) analog and / or digital hardware circuits having software / firmware, and (ii) Any part of a hardware processor(s) having software (including (multiple) digital signal processors, software, and (multiple) memories, which work together to enable a device (such as a mobile phone or server) to perform various functions); and (c) (multiple) hardware circuits and / or (multiple) processors, such as (multiple) microprocessors or a portion thereof, which require software (e.g., firmware) to operate, but may be absent when operation is not required.

[0198] This definition of circuit system applies to all uses of the term in this application (including in any claim). As another example, as used in this application, the term circuit system also covers only hardware circuitry or a processor (or multiple processors) or portions of hardware circuitry or a processor and its accompanying software and / or firmware implementation. For example, and if applicable to a particular claim element, the term circuit system also covers baseband integrated circuits or processor integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices or other computing or network devices.

[0199] Using these units, the device can function without a fixed processor or memory; any type of computing and storage resources can be deployed from at least one node / device / entity / assembly associated with the communication system. Virtualization and network computing technologies (e.g., cloud computing) can be further introduced to improve network resource utilization efficiency and network flexibility.

[0200] The techniques described herein can be implemented by various means, such that the means for implementing one or more functions of the corresponding devices described in the embodiments include not only prior art means, but also components for implementing one or more functions of the corresponding devices described in the embodiments, and may include separate components for each individual function, or components that can be configured to perform two or more functions. For example, these techniques can be implemented in hardware (one or more devices), firmware (one or more devices), software (one or more modules / units), or a combination thereof. For firmware or software, implementation can be achieved by modules (e.g., processes, functions, etc.) that perform the functions described herein.

[0201] In some embodiments, some or all of the functions described herein may be provided by a processing circuitry system that executes instructions stored in memory, which in some embodiments may be a computer program product in the form of a non-transitory computer-readable storage medium. In alternative embodiments, some or all of the functions may be provided by the processing circuitry system without executing instructions stored on separate or discrete device-readable storage media, such as in a hard-wired manner. In any of these particular embodiments, the processing circuitry system may be configured to perform the described functions regardless of whether instructions stored on a non-transitory computer-readable storage medium are executed. The benefits provided by such functions are not limited to a single processing circuitry system or other components of the computing device, but are shared by the entire computing device and / or by the end user and wireless network.

[0202] The term “non-transient” as used in this article refers to a limitation on the medium itself (i.e., tangible, not signaling), rather than a limitation on the persistence of data storage (e.g., RAM vs. ROM).

[0203] Based on the above embodiments, some other detailed solutions can be provided as follows.

[0204] The exemplary embodiments of this disclosure propose a novel UE mechanism that determines whether the UE should perform CLI-RSSI measurements according to method #1 or method #3. Based on the determined method, the UE also derives the measured bandwidth.

[0205] The exemplary embodiments of this disclosure can provide at least two alternatives: - gNB explicit indication: As part of the CSI reporting configuration, the gNB indicates which method the UE should use to derive CLI-RSSI measurements. - UE Derivation Instruction: Expects the UE to autonomously derive the measurement method to be used based on certain conditions or rules configured by the network.

[0206] The exemplary embodiments of this disclosure present a mechanism for the UE and gNB to know which method should be used to export the UE to the UE CLI. Such exemplary embodiments of this disclosure can also be future proofs of potential dynamic SBFD, where the UL subband size can be expected to change over time. This is achieved without additional signaling overhead.

[0207] Further detailed example embodiments can also be shown below. At least some or all of the technical features in such embodiments can also be embodied in standards (such as 3GPP) to ensure the expected UE behavior measured from the UE to the UE CLI.

[0208] Figure 19 This is a diagram illustrating an exemplary flowchart of an explicit gNB instruction for a UE-to-UE CLI measurement method.

[0209] like Figure 19 As shown, this exemplary flowchart may include the following steps.

[0210] In step 1902, the gNB transmits the configuration of a radio frame with an SBFD time slot.

[0211] In step 1904, the gNB sends the configuration of the L1-CLI-RSSI measurement resources.

[0212] In step 1906, the gNB sends the configuration for the measurement method used by the UE to the UE CLI.

[0213] In step 1908, gNB sends a configuration for the minimum number of valid RBs (e.g., PRBs) for the measurement sample.

[0214] In step 1910, the UE evaluates / determines whether the current CLI-RSSI measurement is valid based on the minimum number indicated by the RB.

[0215] In step 1912, the UE performs a UE-to-UE CLI measurement according to the indicated measurement method.

[0216] The gNB includes an indication of which method the UE should assume as part of the Radio Resource Control (RRC) Information Element (IE) CSI-ReportConfig. This can be achieved by introducing an IE represented as “cli-rssi-method”, for example, by the value {1,3} or {0,1}. Additionally, the UE may receive an additional configuration of a minimum number (N) of RBs (e.g., N can be an integer) to perform measurements. This is done to cover dynamic SBFD situations. For example, at least across N Under the condition that a RB performs the measurement, the UE is instructed to report the L1-CLI-RSSI according to method #1; otherwise, the measurement result is discarded and not reported. The minimum number of PRBs can also be configured by RRC.

[0217] Figure 20 This is a diagram illustrating an exemplary flowchart of UE derivation for a UE-to-UE CLI method based on specific rules.

[0218] like Figure 20 As shown, this exemplary flowchart may include the following steps.

[0219] In step 2002, the gNB transmits the configuration of a radio frame with an SBFD time slot.

[0220] In step 2004, the gNB sends the configuration of the L1-CLI-RSSI measurement resources.

[0221] In step 2006, gNB sends a configuration for the minimum number of valid RBs (e.g., PRBs) for the measurement sample.

[0222] In step 2008, the UE evaluates / determines the measurement method based on the minimum number of indicated RBs and the number of RBs overlapping with the UL and DL subbands.

[0223] In step 2010, the UE performs a UE-to-UE CLI measurement according to the obtained measurement method.

[0224] Figure 21 This is a diagram used to determine the UE's decision regarding the measurement method.

[0225] In step 2102, the UE is configured to measure L1-CLI-RSSI in the current SBFD time slot.

[0226] UE reception rules are used to determine the CLI measurement method based on the number of RBs overlapping with the DL and UL subbands. This evaluation is performed on a per RSSI resource basis.

[0227] In step 2104, if all configured CLI-RSSI resources (PRB) are within the DL subband, then ○ Execution Method #1

[0228] In step 2106, if all configured CLI-RSSI resources are within the UL subband, then ○ Execution Method #3

[0229] In step 2108, if CLI-RSSI is less than k If each RB overlaps with the SBFD time slot in each configured DL subband, then ○ Execution Method #3 ○ K These are parameters configured by the network.

[0230] In step 2110, if CLI-RSSI measurement resources k PRB or more k If at least one configured DL subband of a PRB overlaps with an SBFD time slot, then: ○ If all configured DL subbands meet the conditions, then method #1 is executed across DL subbands. If a subset of the configured DL subbands meets the conditions, then execute method #1 on the subset of the DL subbands. ○ K These are parameters configured by the network.

[0231] Additionally, for dynamic SBFD, it can be proposed that the UE discard measurement samples that do not follow the "assumed measurement method". The "assumed measurement method" can be represented as the first method derived after the last CLI-RSSI report. For example, if after reporting a CLI-RSSI, the UE concludes that, for a given measurement resource, it should follow method #1, this is assumed to be the "assumed measurement method" until the next reporting time. Therefore, any samples that the UE determines should be performed using method #3 before the next report will not be included as part of the next report.

[0232] Figure 22A , Figure 22B , Figure 22C It is shown that... Figure 21 The diagram shows the resource allocation corresponding to some of the situations shown.

[0233] like Figure 22A As shown, corresponding to step 2108, CLI-RSSI is less than kEach RB overlaps with each configured DL subband of the SBFD time slot.

[0234] like Figure 22B , Figure 22C As shown, corresponding to step 2108, CLI-RSSI measurement resources k PRB or more k At least one configuration DL subband of each PRB overlaps with the SBFD time slot.

[0235] exist Figure 22B In this process, more than one set of consecutive PRBs overlaps with the DL subbands; therefore, measurements can be derived from each set of consecutive PRBs. Then, the more than one measurement can be averaged (weighted or unweighted) to generate a single value to be reported.

[0236] exist Figure 22C In this study, only one set of continuous PRBs overlaps with the DL subband; therefore, the measurement results can be directly derived from this set of continuous PRBs.

[0237] Based on the specific example embodiment described above, a method is proposed for a UE to determine whether to perform CLI-RSSI measurements according to method #1 or method #3. Based on the determined method, the UE also derives the measurement bandwidth.

[0238] This is especially useful when CLI-RSSI measurement resources may overlap with downlink (DL) and uplink (UL) subbands (which can introduce uncertainty for the UE about which measurement method to apply).

[0239] Figure 23A It is a diagram used by the UE to make decisions about the measurement methods for multiple measurement resources.

[0240] like Figure 23A As shown, multiple measurement resources can be configured as part of the same CSI-ReportConfig. For example, four CLI-RSSI resources can be configured as part of a given CSI-ReportConfig, and the UE can be instructed to report the two resources with the highest cross-link interference power.

[0241] Therefore, the UE can also infer which method to use based on which other measurement resources are associated with the same CSI-ReportConfig.

[0242] exist Figure 23A In this context, measurement resource #4, which spans both DL and UL resources, is expected to be measured as method #1, since other measurement resources in CSI-ReportConfig (all in DL) are also method #1.

[0243] Figure 23BIt is a diagram used by the UE to make decisions about the measurement methods for multiple measurement resources.

[0244] exist Figure 23B In this context, measurement resource #4, which spans both DL and UL resources, is expected to be measured as method #3, since other measurement resources in CSI-ReportConfig (all in UL) are also method #3.

[0245] It should be understood that the above embodiments are for illustrative purposes only and not for limitation. This disclosure may be carried out in ways other than those specifically set forth herein without departing from its essential characteristics. All changes to these embodiments are intended to be included herein without departing from the meaning and equivalence of the appended claims.

[0246] Abbreviation Explanation DL: Downlink FDRA: Frequency Domain Resource Allocation gNB: Next-Generation Node B NR: New Radio PDCCH: Physical Downlink Control Channel PDSCH: Physical Downlink Shared Channel PRB: Physical Resource Block PUCCH: Physical Uplink Control Channel PUSCH: Physical Uplink Shared Channel RIV: Resource Indicator Value RRC: Radio Resource Control RE: Resource Elements SBFD: Sub-band Full-Duplex TDD: Time Division Duplex TDRA: Time Domain Resource Allocation TX: Send UE: User Equipment UL: Uplink SCS: Subcarrier Spacing CLI: Cross-link interference PCI: Physical Cell ID FDU: Flexible Full-Duplex RNTI: Temporary Identifier for Radio Networks DCI: Downlink Control Information BM: Beam Management SRS: Detection Reference Signal RSRP: Reference Signal Received Power RSSI: Received Signal Strength Indicator AMF: Access and Mobility Management Functions CN: Core Network NAS: Non-Access Layer RAN: Radio Access Network AF: Application Functions UDM: Unified Data Management UDR: Unified Data Repository NEF: Network Exposure Function NF: Network Functions 3GPP: Third Generation Partnership Project TR: Technical Report NW: Network 3GPP: Third Generation Partnership Project 5GC: Fifth Generation Core Network 5G: Fifth Generation 6G: Sixth Generation Rel: Version

Claims

1. An apparatus (10) for operation as a terminal device, comprising: At least one processor (102); as well as At least one memory (104) includes computer program code; The at least one memory (104) and the computer program code are configured together with the at least one processor (102) to cause the means (10) operating as the terminal device to perform at least the following: Receive the first configuration of measurement resources from the network entity; Receive a second configuration of the measurement method from the network entity; and Measurements shall be performed based at least on the first configuration and the second configuration; The measurement resources are located within the transmission resources; The transmission resources mentioned therein include at least a first subband of a first type and a second subband of a second type; One of the first type or the second type is associated with the measurement method; and The measurement resource overlaps with at least one of the first subband and the second subband.

2. The apparatus (10) for operating as a terminal device according to claim 1. The measurement resources mentioned above include multiple Physical Resource Blocks (PRBs). The transmission resources mentioned above include subband full-duplex (SBFD) resources; The second configuration indicates either the first measurement method or the second measurement method; Wherein the first type is associated with the first measurement method, or the second type is associated with the second measurement method; and The measurements mentioned include measurements for the Cross-Link Interference Received Signal Strength Indicator (CLI-RSSI).

3. The apparatus (10) for operating as a terminal device according to claim 1. The first sub-band of the first type is a downlink DL sub-band. The second sub-band of the second type is the uplink UL sub-band; The terminal device mentioned above includes a user equipment (UE); and The network entities mentioned above include access network nodes.

4. The apparatus (10) operating as a terminal device according to claim 2, wherein the at least one memory (104) and the computer program code are further configured, together with the at least one processor (102), such that the apparatus (10) operating as the terminal device performs at least: A third configuration is received from the network entity to determine the minimum number of valid PRBs for the measurement sample; Determine whether the number of consecutive PRBs overlapping with sub-bands of the type associated with the measurement method among at least the plurality of PRBs is equal to or greater than the minimum number; and If the number of consecutive PRBs is greater than the minimum number, then the measurement is performed on at least the consecutive PRBs.

5. The apparatus (10) operating as a terminal device according to claim 4, wherein the at least one memory (104) and the computer program code are further configured, together with the at least one processor (102), such that the apparatus (10) operating as the terminal device performs at least: The measurement is performed on multiple consecutive PRBs among the plurality of PRBs; Each of the multiple sets of consecutive PRBs overlaps with a sub-band associated with the type of measurement method; and Each of the multiple sets of consecutive PRBs has a number of consecutive PRBs equal to or greater than the minimum number.

6. The apparatus (10) for operating as a terminal device according to claim 2. The first configuration includes an index for the initial physical resource block (PRB) and the number of PRBs. The first configuration and the second configuration are received from the network entity in the same or different messages; The first configuration is included in the measurement resource configuration; and The second configuration is included in the measurement resource configuration or reporting configuration.

7. A method (110) performed by an apparatus operating as a terminal device according to claim 1. The method (110) includes: Receive the first configuration of the measurement resources from the network entity (S1102); Receive a second configuration of the measurement method from the network entity (S1104); as well as The measurement (S1106) is performed based at least on the first configuration and the second configuration; The measurement resources are located within the transmission resources; The transmission resources mentioned therein include at least a first subband of a first type and a second subband of a second type; One of the first type or the second type is associated with the measurement method; and The measurement resource overlaps with at least one of the first subband and the second subband.

8. An apparatus (13) for operating as a network entity, comprising: At least one processor (132); as well as At least one memory (134), the at least one memory (134) including computer program code; The at least one memory (134) and the computer program code are configured, together with the at least one processor (132), such that the means (13) operating as the network entity performs at least the following: Send the first configuration of measurement resources to the terminal device; Send a second configuration of the measurement method to the terminal device; The measurement resources are located within the transmission resources; The transmission resources mentioned therein include at least a first subband of a first type and a second subband of a second type; One of the first type or the second type is associated with the measurement method; and The measurement resource overlaps with at least one of the first subband and the second subband.

9. The apparatus (13) for operating as a network entity according to claim 8. The measurement resources mentioned above include multiple Physical Resource Blocks (PRBs). The transmission resources mentioned above include subband full-duplex (SBFD) resources; The second configuration indicates either the first measurement method or the second measurement method; Wherein the first type is associated with the first measurement method, or the second type is associated with the second measurement method; and The measurements mentioned include measurements for the Cross-Link Interference Received Signal Strength Indicator (CLI-RSSI).

10. The apparatus (13) for operating as a network entity according to claim 8. The first sub-band of the first type is a downlink DL sub-band. The second sub-band of the second type is the uplink UL sub-band; The terminal device mentioned above includes a user equipment (UE); and The network entities mentioned above include access network nodes.

11. The apparatus (13) operating as a network entity according to claim 9, wherein the at least one memory (134) and the computer program code are further configured, together with the at least one processor (132), such that the apparatus (13) operating as the network entity performs at least: Send a third configuration to the terminal device for the minimum number of valid PRBs for measuring the sample; If the number of consecutive PRBs overlapping with the subbands of the type associated with the measurement among at least the plurality of PRBs is equal to or greater than the minimum number, then the measurement is performed on at least the consecutive PRBs.

12. The apparatus (13) for operating as a network entity according to claim 11. The terminal device performs the measurement on multiple consecutive PRBs among the plurality of PRBs; Each of the multiple sets of consecutive PRBs overlaps with a sub-band associated with the type of measurement method; and Each of the multiple sets of consecutive PRBs has a number of consecutive PRBs equal to or greater than the minimum number.

13. The apparatus (13) for operating as a network entity according to claim 9. The first configuration includes an index for the initial physical resource block (PRB) and the number of PRBs. The first configuration and the second configuration are received from the network node in the same or different messages; The first configuration is included in the measurement resource configuration; and The second configuration is included in the measurement resource configuration or reporting configuration.

14. A method (140) performed by an apparatus operating as a network entity according to claim 8. The method includes: Send (S1402) the first configuration of measurement resources to the terminal device; Send the second configuration of the measurement method (S1404) to the terminal device; The measurement resources are located within the transmission resources; The transmission resources mentioned therein include at least a first subband of a first type and a second subband of a second type; One of the first type or the second type is associated with the measurement method; and The measurement resource overlaps with at least one of the first subband and the second subband.

15. A computer-readable storage medium (160) storing instructions (161). When the instructions are executed by at least one processor of a device operating as a terminal device, the at least one processor of the device operating as the terminal device causes at least the following to be performed: receiving a first configuration of measurement resources from a network entity; receiving a second configuration of a measurement method from the network entity; and performing a measurement based at least on the first configuration and the second configuration; wherein the measurement resources are located in transmission resources; wherein the transmission resources include at least a first subband of a first type and a second subband of a second type; wherein one of the first type or the second type is associated with the measurement method; and wherein the measurement resources overlap with at least one of the first subband and the second subband; or When the instructions are executed by at least one processor of a device operating as a network entity, the at least one processor of the device operating as the network entity causes the at least one processor to perform at least: sending a first configuration of measurement resources to a terminal device; sending a second configuration of a measurement method to the terminal device; wherein the measurement resources are located in transmission resources; wherein the transmission resources include at least a first subband of a first type and a second subband of a second type; wherein one of the first type or the second type is associated with the measurement method; and wherein the measurement resources overlap with at least one of the first subband and the second subband.

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