WO2025210280A1

WO2025210280A1 - Synchronization signal block (ssb) configuration and indication signaling

Info

Publication number: WO2025210280A1
Application number: PCT/EP2025/059384
Authority: WO
Inventors: Andres Reial; Ali Nader; Helka-Liina MÄÄTTÄNEN
Original assignee: Telefonaktiebolaget LM Ericsson AB
Current assignee: Telefonaktiebolaget LM Ericsson AB
Priority date: 2024-04-04
Filing date: 2025-04-04
Publication date: 2025-10-09
Anticipated expiration: 2026-10-04

Abstract

A method performed by a User Equipment, UE, for receiving synchronization signal blocks, SSBs. The method comprises receiving, from a network node, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations. The method further comprises receiving, from the network node, an indication of at least one of the one or more SSB transmission configurations; wherein the indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations; wherein the indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations. The method further comprises receiving at least one SSB corresponding to the at least one of the one or more SSB transmission configurations.

Description

SYNCHRONIZATION SIGNAL BLOCK (SSB) CONFIGURATION AND INDICATION SIGNALING

TECHNICAL FIELD

[0001] The present disclosure relates generally to communications, and more particularly to methods and related devices and network nodes performing wireless and/or cellular based communications and signaling.

BACKGROUND

[0002] Figure 1 illustrates an example of a new radio (“NR”) network (e.g., a 5th Generation (“5G”) network) including a 5G core (“5GC”) network 130, network nodes 120a- b (e.g., 5G base station (“gNB”)), multiple communication devices 110 (also referred to as user equipment (“UE”)).

[0003] At present, legacy synchronization signal blocks (SSBs) typically conform to a uniform SSB structure and transmission pattern that is utilized by radio access networks (RANs). To illustrate, Figure 2 illustrates an example SSB structure 200. For example, SSB structure 200 (e.g., Release-15 New Radio (NR) SSB) consists of four (4) Orthogonal frequency-division multiplexing (OFDM) symbols, where the first and third symbols (e.g., symbols 1 and 3) respectively carry a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). Likewise, each of symbols 2-4 carry a Physical Broadcast Channel (PBCH) containing the Master Information Block (MIB) payload.

[0004] Notably, legacy SSB transmission occurs according to a statically configured configuration, where the SSB burst period, the number of SSBs per burst, and the like are signaled via System Information Block 1 (SIB1). Multiple SSBs per burst may be used to divide coverage over a cell among multiple SSB beams.

[0005] On-demand SSB provisioning

[0006] As NR continues to evolve, on-demand SSBs may be provided and/or provisioned temporarily to user equipment (UE) devices whose functionality or performance may be improved if additional signals for loop conversion, synchronization, measurements, or other signal processing steps are available. In some scenarios, a network node (e.g., a gNB) in a cell may be transmitting baseline SSBs at a lower rate, e.g., 160 milliseconds (ms) or 20 ms or no SSBs may be transmitted as a baseline. The network (and/or a base station, such as a gNodeB) may then activate additional SSBs or SSB bursts (e.g., with a period of 20 ms or 5 ms, respectively) in association with certain procedures, or based on a UE requesting them. On- demand SSBs may also be one-shot transmissions or limited-duration SSB bursts without a recurrent structure. The on-demand SSBs may be transmitted at the same time or at a different power level and spatial configuration than the baseline SSB(s).

[0007] Notably, there are some scenarios where on-demand SSBs may be beneficial. For example, on-demand SSBs may particularly useful in situations pertaining to: SCell quality measurements upon Secondary Cell (Scell) configuration, Synchronization upon SCell activation, Timing/Frequency tracking for an active serving cell, Radio Resource Management (RRM) measurements on serving or neighbor cells, RSRP/RLM/BFD/CBD measurements on serving cell, Preparation for paging occasion (PO) monitoring and paging reception, Preparation for uplink (UL) access using Physical Random Access Channel (PRACH), and the like.

SUMMARY

[0008] There currently exist certain challenge(s). In the Release- 19 NES WI, a number of objectives are expected to benefit from on-demand SSB provisioning where a set of multiple SSBs are provided in close temporal proximity, such as in a periodic or an aperiodic arrangement. However, current signaling frameworks only support conventional periodic SSB patterns. Thus, there is a need for methods for efficient configuration and signaling of SSB patterns for example that include multiple SSB instances per SSB period occasion.

According to an embodiment, there is provided a method performed by a User Equipment, UE, for receiving synchronization signal blocks, SSBs. The method comprising receiving, from a network node, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations. The method further comprises receiving, from the network node, an indication of at least one of the one or more SSB transmission configurations. The indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations. The indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations. The method further comprises receiving at least one SSB corresponding to the at least one of the one or more SSB transmission configurations.

In a particular embodiment, the first set of one or more parameters may provide an incomplete description of the at least one of the one or more SSB transmission configurations. In this case, the second set of one or more parameters may complete a full parameter set for the at least one of the one or more SSB transmission configurations. In a particular embodiment, one or more parameters in the second set of one or more parameters may, in addition or alternatively, override one or more parameters included in the first set of one or more parameters.

The indication may be an activation indication for the at least one of the one or more SSB transmission configurations.

The one or more SSB transmission configurations may comprise one or more on-demand SSB transmission configurations.

The indication may comprise a Downlink Control Information, DCI.

Alternatively, the indication may comprise a Medium Access Control - Control Element, MAC CE.

In a particular embodiment, the method may further comprise transmitting preference information to the network node, wherein the preference information indicates a preferred parameter value preferred by the UE for one or more parameters in the first set or the second set of one or more parameters.

In a particular embodiment, the method further comprises transmitting a request to the network node for an SSB transmission.

The request may indicate a preferred parameter value for one or more parameters in the first set or the second set of one or more parameters.

According to an embodiment there is further provided a User Equipment, comprising processing circuitry and at least one memory storing instructions executable by the processing circuitry to perform operations to: receive, from a network node, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations; receive, from the network node, an indication of at least one of the one or more SSB transmission configurations; and receive at least one SSB corresponding to the at least one of the one or more SSB transmission configurations. The indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations. The indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations.

The at least one memory may store further instruction executable by the processing circuitry to perform further operations comprising any of the methods performed by a UE described above.

According to an embodiment, there is further provided a method performed by a network node for enabling a User Equipment, UE, to receive at least one Synchronization Signal Block, SSB. The method comprises transmitting, to the UE, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations. The method further comprises transmitting, to the UE, an indication of at least one of the one or more SSB transmission configurations. The indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations. The indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations.

In a particular embodiment, the first set of one or more parameters provides an incomplete description of the at least one of the one or more SSB transmission configurations. The second set of one or more parameters may complete a full parameter set for the at least one of the one or more SSB transmission configurations.

In a particular embodiment, one or more parameters in the second set of one or more parameters override one or more parameters included in the first set of one or more parameters.

The indication may comprise a Downlink Control Information, DCI.

In a particular embodiment, the method may further comprise receiving preference information from the UE, wherein the preference information indicates a preferred parameter value preferred by the UE for one or more parameters in the first set or the second set of one or more parameters.

In a particular embodiment, the method may comprise receiving a request from the UE for at least one SSB transmission.

The request may indicate one or more preferred parameter values for one or more parameters in the first set or the second set of one or more parameters.

According to an embodiment there is further provided a network node. The network node comprises: processing circuitry; and at least one memory storing instructions executable by the processing circuitry to perform operations to: transmit, to a User Equipment, UE, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations; and transmit, to the UE, an indication of at least one of the one or more SSB transmission configurations. The indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations. The indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations.

In particular embodiments the at least one memory may store further instruction executable by the processing circuitry to perform further operations comprising any of the methods performed by a network node described above.

[0009] Certain embodiments may provide one or more of the following technical advantage(s). The method may provide an efficient framework for on-demand SSB provision, for example SSB “train” provision, whereby UEs may obtain the type and degree of SSB support that is needed in a given scenario, dynamically and without undue signaling and resource overhead. The disclosed subject matter improves, depending on the scenario, network and/or UE energy efficiency, network and/or UE performance, as well as network resource usage and UE processing load.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Embodiments will now be described with reference to the accompanying drawings in which:

[0011] Figure 1 is a schematic diagram illustrating an example of a 5^th generation (“5G”) network;

[0012] Figure 2 is a block diagram depicting an example SSB structure;

[0013] Figure 3 is a diagram depicting an example SSB train sequence framework according to some embodiments;

[0014] Figure 4 is a diagram depicting the transmission of a plurality of SSB train sequences according to some embodiments;

[0015] Figure 5 is a flow chart illustrating an example of operations performed by a communication device according to some embodiments;

[0016] Figure 6 is a flow chart illustrating an example of operations performed by a communication device according to some embodiments;

[0017] Figure 7 is a flow chart illustrating a method performed by a User Equipment according to embodiments;

[0018] Figure 8 is a flow chart illustrating a method performed by a network node according to embodiments; [0019] Figure 9 is a block diagram of a communication system in accordance with some embodiments;

[0020] Figure 10 is a block diagram of a user equipment in accordance with some embodiments;

[0021] Figure 11 is a block diagram of a network node in accordance with some embodiments; and

[0022] Figure 12 is a block diagram of a virtualization environment in accordance with some embodiments.

DETAILED DESCRIPTION

[0023] Some of the embodiments contemplated herein will now be described more fully with reference to the accompanying drawings. Embodiments are provided by way of example to convey the scope of the subject matter to those skilled in the art, in which examples of embodiments of inventive concepts are shown. Inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of present inventive concepts to those skilled in the art. It should also be noted that these embodiments are not mutually exclusive. Components from one embodiment may be tacitly assumed to be present/used in another embodiment.

[0024] In an aspect, the disclosed subject matter provides methods and systems for utilizing SSB train sequence configuration and indication signaling.

[0025] In some embodiments, the disclosed subject matter may include a method performed in a UE for receiving multiple SSBs, the method comprising: i) receiving from a gNodeB (gNB) a configuration message comprising a first set of parameters for one or more additional SSB transmission configurations, ii) receiving from the gNB an indication of at least one transmission configuration, comprising at least an index to the transmission configuration, iii) receiving from the gNB at least one additional SSB according to the transmission configuration, wherein the transmission configuration may comprise transmitting one or more “SSB trains”.

[0026] Augmenting or changing preconfigured parameters

[0027] In some embodiments, the first set of parameters is an incomplete description of the transmission configuration, and the indication further comprising a second set of parameters for the transmission configuration. [0028] In some embodiments, the first set of parameters is a default description of the transmission configuration, and the indication further comprising a second set of parameters overriding one or more parameters provided in the first set of parameters.

[0029] In some embodiments, the SSB train sequence description parameters may include a number of different metrics, characteristics and the like. For example, the parameters may include an SSB train length, SSB train period, a number of SSB instances in an SSB train, SSB train spacing, SSB within instance, a number of SSB transmissions, an SSB train sequence duration, an instance bitmap, a starting offset value, a starting time, a frequency, an SSB format, SSB transmission power, and the like. In some embodiments, the first and second sets of parameters may each and/or collectively include one or more of the aforementioned parameters.

[0030] Indication of different activation modes

[0031] In some embodiments, the indication indicates a one-time additional “SSB train” transmission.

[0032] In some embodiments, the indication indicates a duration or number of multiple additional “SSB train” transmissions.

[0033] In some embodiments, the indication indicating additional “SSB train” transmissions until further notice.

[0034] In some embodiments, the method includes receiving a second indication indicating termination of the additional SSB transmission.

[0035] Indication modes

[0036] In some embodiments, the indication is a dedicated or group transmission (DCI, MAC CE).

[0037] In some embodiments, the indication is implicit in a confirmation/acknowledgement received by the UE.

[0038] In some embodiments, the indication is implicit in an instruction to perform a procedure.

[0039] Preference and request si naling

[0040] In some embodiments, transmitting preference information to the gNB, wherein the preference information indicates preferred parameter values for one or more parameters in the first set and/or second set.

[0041] In some embodiments, the method includes transmitting a request to the gNB for an additional SSB transmission. [0042] In some embodiments, the request indicates the preferred parameter values for one or more parameters in the first or second set.

[0043] In some embodiments, the method includes receiving a confirmation from the gNB for the additional SSB transmission.

[0044] Mixed indication signaling

[0045] In some embodiments, the disclosed subject matter further includes a method in a UE for receiving an activation indication of a configuration of a feature. For example, the method comprises: i) receiving from a gNB a configuration message comprising a first set of parameters for one or more configurations of the feature, ii) receiving from the gNB an indication of a first configuration, comprising an index to the first configuration in the configuration message and a second set of parameters, and iii) using the feature according to the first configuration.

[0046] In some embodiments, the preconfigured parameters can be augmented or changed. For example, the first set of parameters is an incomplete description of the first configuration, and the second set of parameters completes the full parameter set for first configuration.

[0047] In some embodiments, the first set of parameters is a default description of the first configuration, and the second set of parameters overriding one or more parameters provided in the first set of parameters.

[0048] SSB train sequence framework

[0049] In an embodiment a configuration and signaling framework for S SB train sequence transmission(s) is provided, where parameters of the SSB train may be flexibly configured to realize abroad range of patterns. For example, Figure 3 illustrates the structure of the sequence of SSB trains in more detail. As shown in Figure 3, sequence train sequence 300 includes a plurality of SSB trains (see, e.g., a SSB train 302). Notably, each SSB train includes a plurality of instances (see, e.g., instance 303), wherein each instance includes one or more SSBs (see, e.g., SSB instance 304).

[0050] As used herein, an SSB train 302 includes a group of one or more SSB instances 303 that are located in (relatively) in close proximity in time. Further, as used herein, an SSB train sequence 300 includes a set of one or more SSB trains, where the SSB trains may be aperiodic (e.g., single-train) or periodically repeated (e.g., in accordance with period 301). In some embodiments, the SSB train length (i.e., the length of an SSB train) is determined by the number of SSB instances within the SSB train. In another embodiment, the length of the SSB train may be defined by a time window, wherein the starting point of the time window is the beginning of the first SSB instance within the SSB train. [0051] As used herein, the SSB period (e.g., period 301) may be the time interval that spans from the beginning of one SSB train to the beginning of next SSB train in a periodically configured SSB train sequence. The SSB period may be any predefined time period, including but not limited to 5 ms, 20 ms, or 160 ms.

[0052] As used herein an SSB instance 303 may include one SSB transmission in an SSB train 302. An instance may be a composite transmission (e.g., an SSB burst) comprising multiple SSB repetitions or transmissions in different beams and/or spatial configurations. Alternatively, an SSB instance may comprise a single SSB transmission that is equivalent to a single-SSB burst.

[0053] As used herein SSB spacing 306 refers to a time interval from the beginning of one SSB instance to the beginning of next SSB instance in an SSB train. In some embodiments, the SSB spacing, d, may be, for example, 0.5 ms, 2 ms, or 5 ms.

[0054] As used herein, “SSBs within instance” may indicate which of the SSBs, out of a multiple number of SSBs, that are present per instance of and within the SSB train. For example, a bitmap can be used similar to the legacy (e.g., Release-15) “ssb-PositionsInBursf ’, where each of the bits correspond to one of the SSB indices. For example, assume an FR1 cell with 8 SSBs being transmitted regularly for all UEs of the cell, but the activated SSB train, per transmission instance, only transmits SSB instances (e.g., 2 SSBs) that are within the coverage of the UE that the SSB train is activated for.

[0055] In some embodiments, the SSB train sequence may be transmitted as an addition to, or a union with, a previously configured static baseline SSB pattern. Additionally, one or more SSB train sequences may be configured and activated simultaneously, each with different parameters. For example, Figure 4 illustrates an example including two SSB train sequences depicted as SSB train sequence A (i.e., train sequence 400) and SSB train sequence B (i.e., train sequence 410), which are offset from each other. Notably, train sequence 400 includes SSB trains 401-403 and train sequence 410 includes SSB trains 411-412 in Figure 4.

[0056] In some embodiments, one or more of the SSB instances of an SSB train may be transmitted on other frequency resources than that of the SSBs of the baseline SSB pattern.

[0057] SBB train sequence parameters

[0058] The SSB train sequence may be described using all or a subset of the following set of parameters. As indicated above, SSB period (P) is the time interval that spans from the beginning of one SSB train to the beginning of next SSB train in a periodically configured SSB train sequence. [0059] Further, the number of trains (N) indicates the number of SSB trains in a predefined-length SSB train sequence, e.g., 1 = aperiodic/one-shot, N = a predetermined number of trains, or -1 = activated until further notice.

[0060] As described herein, the train sequence duration (D) represents the duration of the SSB train sequence in milliseconds, frames, number of SSB instances, etc. For example, 0 = one-shot, D = a predetermined duration in frames (or alternately the number of SSB instances within a train), or -1 = activated until further notice.

[0061] As described above, Spacing (d) refers to SSB spacing, which is a time interval from the beginning of one SSB instance to the beginning of next SSB instance in an SSB train. [0062] As described herein, the number of instances (n) denotes the number of SSB instances in one SSB train.

[0063] As described herein, the instance bitmap include a bitmap indicating used SSB positions within the SSB train.

[0064] As described above, “SSBs within instance” indicates which of the SSBs, out of a multiple number of SSBs, that are present per instance of and within the SSB train.

[0065] As used herein, “Bitmap describing the train” refers to a bitmap where each bit indicates presence of SSB instance in a SSB train.

[0066] Further, as used herein, “Bitmap describing the configuration for the train” denotes a bitmap where each bit indicates the presence of a SSB train. In some embodiments, the bitmap allows for the configuring of a set of SSB trains. Notably, the bitmap(s) assumes that nominal locations have been defined, either fixed or a per other configuration parameters.

[0067] As used herein, Starting offset (O) describes the relative offset to a starting time of the first train of the SSB train sequence (e.g., in slots, frames, milliseconds, etc.) in relation to a current time, current frame beginning, etc.

[0068] As used herein, Starting time (T) refers to the absolute starting time of the first instance of the SSB train, in SFN+slot offset, etc. Similarly, Frequency (F) represents the frequency location of the SSB instances, given as the GSCN index and/or the ARFCN index, offset to cell-defining SSB location and the like.

[0069] As used herein, SSB format refers to the format and/or type of SSBs included in the SSB train, e.g., full/NR legacy, PBCH-less, SIBl-less, alternate PBCH contents, and/o advanced SSB type (measurement/mobility/QCL root, etc.).

[0070] As used herein, SSB transmission power pertains to defining the average EPRE of the resource elements in dBm. The transmission power can be either an absolute value, or given as a delta parameter in relation to another configured transmission power (e.g., as delta to the static baseline SSB block power).

[0071] Some of the parameters may be predefined in a specification document and not signaled by the network (e.g., gNB or other network node).

[0072] SSB train configuration

[0073] In a high-level view, the UE may be provided with zero or more SSB train sequence configurations, and subsequently signaled an indication for the relevant configuration and optional additional parameters when a certain SSB train sequence is activated in the cell.

[0074] Each SSB train sequence configuration included in the configuration message may contain all or a subset of the above-listed parameters.

[0075] In some embodiments, the UE may be provided the SSB train sequence configuration message via RRC signaling, or via SI broadcast, e.g., in SIB1 or another SIBn, e.g., the power-saving SIB or a dedicated on-demand SSB SIB.

[0076] In some embodiments, a UE may not, upon receiving the configuration information, assume that the SSB train sequence is currently provided, but will instead await indication signaling that indicates actual transmission. In other embodiments, the configuration contains a parameter indicating the initial state of the SSB train sequence. The initial state may e.g., be “initially active”, or “initially inactive until” where the latter means that the pattern is activated first after the UE has received an indication.

[0077] SSB train indication

[0078] In some embodiments, indication signaling informs the UE that one or more SSB train sequences are transmitted, or will be transmitted, and which one or more of the SSB train sequence configurations will be used by the gNB.

[0079] Indication signaling may also be used to indicate the termination (e.g., transmission stop) of one or more of the SSB train sequence configurations. This can be useful when the configuration parameters indicate transmissions that are applicable “until further notice” as described above.

[0080] In some embodiments, the indication comprises an index to a previously provided configuration. Parameter values in the configuration will be used by the UE. The start time of the SSB train sequence may be provided as part of the configuration, e.g., as offset D in relation to the time point the indication was received, or provided as part of the indication, or derived based on separately specified offset rules.

[0081] In some embodiments, the indication comprises an index to a previously provided configuration and additional explicit parameter values. The union of parameter values in the configuration and the indication will be used by the UE. In one example, the configuration may include a basic SSB train sequence description, e.g., the individual SSB train structure, via d and n, and the repetition period P, while the additional parameters in the indication provide the start time T, train sequence duration D or N (e.g., aperiodic/one-shot, a predetermined number of trains, or activated until further notice), and frequency location F. In some embodiments, one or more parameters present in the indicated configuration may be overridden by explicit parameters provided in the indication message.

[0082] In some embodiments, the indication comprises a full set of SSB train sequence parameter values, not indicating a previously provided configuration.

[0083] In some embodiments, one or more of the bitmap types is used for the indication, for example, MAC CE or DCI. For example, there may be a MAC CE which provides a bitmap for an SCell such that certain preconfigured nominal SSB occasions, instances, or trains are present. This may be combined with Scell activation MAC CE, where each activated SCell may have presence of an octet describing the SSB activation pattern. Alternatively, there may be a field indicating the presence of such a bitmap for a SCell, and if the corresponding bitmap is not present, the SCell may follow the same pattern as another SCell. In an alternative embodiment, there may be a common bitmap for all activated Scells.

[0084] The indication may be signaled using a MAC CE (which is preferred if a larger number of parameters are to be provided) or a DCI (which is preferred if only a configuration indication and a small number of parameters are signaled).

[0085] In some embodiments, the indication may be implicit and not explicitly and separately transmitted in the downlink (DL). For example, the UE may assume that if it sends an uplink (UL) signaling message and receives an acknowledgement, the gNB will transmit an SSB train sequence and the acknowledgement serves as an implicit SSB transmission indication. The signaling message may be an SSB train sequence request (see below) or a message pertaining to a procedure for which a SSB train sequence transmission is configured. [0086] SBB train sequence preference signaling

[0087] A UE may signal to the network and/or gNB its preference for SSB train sequence transmission. The preference may include the number of instances, the spacing, which SSBs, and the like. Separate preferences may be provided for different usage scenarios, e.g., for loop convergence, for mobility measurements, and the like.

[0088] In some embodiments, the preferences may be provided as a list of preferred parameter values from the above parameter list. In other embodiments, the preferences may be provided as indices corresponding to preferred parameter values in respective available parameter value lists provided by the gNB.

[0089] In some embodiments, the preference signaling includes one or more of the bitmaps.

[0090] In some embodiments, the UE may provide the preference information to the gNB using the UAI framework, via other RRC signaling, or dynamically via MAC CE signaling.

[0091] The gNB may further indicate, e.g., viaRRC or SI, which parameters are applicable for preference indication.

[0092] SSB train sequence request signaling

[0093] In some embodiments, a UE may signal a request SSB train sequence transmission to the network and/or gNB. The request may be a request indication only, or additionally include preferred parameter values, or a requested configuration index out of the preconfigured available configurations.

[0094] In some embodiments, the request signaling includes one or more of the bitmaps.

[0095] In some embodiments, the request indicates a request for immediate SSB train sequence transmission.

[0096] In other embodiments, the request indicates a request for SSB train sequence transmission in conjunction with future occurrences of a certain procedure, e.g., an Scell activation procedure or holdover (HO) procedure.

[0097] In some embodiments, the gNB may provide a confirmation that the request was received and will be carried out. In some embodiments, the confirmation may be used by the UE as an indication.

[0098] Extensions

[0099] The above embodiments have been described in terms of on-demand SSB transmission. However, the ideas are equally applicable to any other type of reference signals, such as any newly defined reference signals beyond 5G used for time/frequency synchronization, RRM measurements, and the like.

[0100] The mixed indication approach, indicating an index to a partial configuration and one or more explicit parameter values, may also be applied to other configuration frameworks, e.g., UE cDRX or cell DTX/DRX configurations, WUS configurations, CSI reporting configurations, etc.

[0101] In a cDRX embodiment, the configuration message may provide respective subsets of parameters for multiple cDRX configurations, e.g., onDuration length, HARQ timers, and retransmission timers. The indication signaling may provide the partial configuration index and the remaining parameters that may be adapted traffic-dependently, e.g., inactivity timer, short cycle timer, and start offset.

[0102] Figure 5 is a flow chart illustrating method 500 depicting exemplary operations for performed by a communication device, such as a UE, according to one embodiment. Operations of the UE which may be implemented using the structure of the block diagram of Figure 10, will now be discussed with reference to the flow chart of Figure 5 according to some embodiments. For example, one or more modules may be stored in memory QQ210 of Figure 10, and these modules may provide instructions so that when the instructions of a module are executed by respective processing circuitry 202, the UE QQ200 performs respective operations of the flow chart. In some embodiments, memory QQ210 may store the instructions as one or more of application programs QQ214 and/or data QQ216.

[0103] In block 501, the method 500 includes receiving, from a network node, a configuration message comprising a first set of configuration parameters for one or more additional SSB transmission configurations.

[0104] In block 502, the method 500 includes receiving, from the network node, an indication of at least one SSB transmission configuration that includes at least an index to one or more of the additional SSB transmission configurations.

[0105] In block 503, the method 500 includes receiving, from the network node, at least one additional SSB corresponding to the at least one SSB transmission configuration associated to the indication, wherein the at least one SSB transmission configuration indicates a transmission of one or more SSB trains.

[0106] Figure 6 is a flow chart illustrating method 600 depicting exemplary operations for performed by a communication device, such as a UE, according to one embodiment. Operations of the UE which may be implemented using the structure of the block diagram of Figure 10, will now be discussed with reference to the flow chart of Figure 6 according to some embodiments. For example, one or more modules may be stored in memory QQ210 of Figure 10, and these modules may provide instructions so that when the instructions of a module are executed by respective processing circuitry QQ202, the UE QQ200 performs respective operations of the flow chart. In some embodiments, memory QQ210 may store the instructions as one or more of application programs QQ214 and/or data QQ216.

[0107] In block 601, the method 600 includes receiving, from a network node, a configuration message including a first set of parameters for one or more configurations of a feature. [0108] In block 602, the method 600 includes receiving, from the network node, an indication of a first configuration, including an index to the first configuration in the configuration message and a second set of parameters.

[0109] In block 603, the method 600 includes using the feature according to the first configuration.

Figure 7 is a flow chart illustrating a method in a UE for receiving SSBs according to an embodiment. Operations of the UE which may be implemented using the structure of the block diagram of Figure 10. The method comprises at 700 receiving, from a network node, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations. The method further comprises at 710 receiving, from the network node, an indication of at least one of the one or more SSB transmission configurations. The indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations. The indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations. The method further comprises at 720 receiving at least one SSB corresponding to the at least one of the one or more SSB transmission configurations.

In a particular embodiment, the first set of one or more parameters may provide an incomplete description of the at least one of the one or more SSB transmission configurations. In this case, the second set of one or more parameters may complete a full parameter set for the at least one of the one or more SSB transmission configurations.

In a particular embodiment, the second set of one or more parameters may, in addition or alternatively, override one or more parameters included in the first set of one or more parameters.

The indication may comprise a Downlink Control Information, DCI.

In a particular embodiment, the method further comprises transmitting a request to the network node for at least one SSB transmission.

The at least one memory may store further instruction executable by the processing circuitry to perform further operations comprising any of the methods performed by a UE described above, for example with reference to Figure 7.

Figure 8 is a flow chart illustrating a method in a network node for enabling a User Equipment, UE, to receive at least one Synchronization Signal Block, SSB according to an embodiment. Operations of the network node may be implemented using the structure of the block diagram of Figure 11. The method comprises at 800 transmitting, to the UE, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations. The method further comprises at 810 transmitting, to the UE, an indication of at least one of the one or more SSB transmission configurations. The indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations. The indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations.

In a particular embodiment, the second set of one or more parameters override one or more parameters included in the first set of one or more parameters. The indication may be an activation indication for the at least one of the one or more SSB transmission configurations.

The indication may comprise a Downlink Control Information, DCI. Alternatively, the indication may comprise a Medium Access Control - Control Element, MAC CE.

In a particular embodiment, the method may comprise receiving a request from the UE for at least one SSB transmission. The request may indicate one or more preferred parameter values for one or more parameters in the first set or the second set of one or more parameters.

[0110] Figure 9 shows an example of a communication system QQ100 in accordance with some embodiments.

[0111] In the example, the communication system QQ100 includes a telecommunication network QQ102 that includes an access network QQ104, such as a radio access network (RAN), and a core network QQ106, which includes one or more core network nodes QQ108. The access network QQ104 includes one or more access network nodes, such as network nodes QQl lOa and QQl lOb (one or more of which may be generally referred to as network nodes QQ110), or any other similar 3^rd Generation Partnership Project (3GPP) access nodes or non- 3GPP access points. Moreover, as will be appreciated by those of skill in the art, a network node is not necessarily limited to an implementation in which a radio portion and a baseband portion are supplied and integrated by a single vendor. Thus, it will be understood that network nodes include disaggregated implementations or portions thereof. For example, in some embodiments, the telecommunication network QQ102 includes one or more Open-RAN (ORAN) network nodes. An ORAN network node is a node in the telecommunication network QQ102 that supports an ORAN specification (e.g., a specification published by the O-RAN Alliance, or any similar organization) and may operate alone or together with other nodes to implement one or more functionalities of any node in the telecommunication network QQ102, including one or more network nodes QQ110 and/or core network nodes QQ108.

[0112] Examples of an ORAN network node include an open radio unit (O-RU), an open distributed unit (O-DU), an open central unit (O-CU), including an O-CU control plane (O- CU-CP) or an O-CU user plane (O-CU-UP), a RAN intelligent controller (near-real time or non-real time) hosting software or software plug-ins, such as a near-real time control application (e.g., xApp) or a non-real time control application (e.g., rApp), or any combination thereof (the adjective “open” designating support of an ORAN specification). The network node may support a specification by, for example, supporting an interface defined by the ORAN specification, such as an Al, Fl, Wl, El, E2, X2, Xn interface, an open fronthaul user plane interface, or an open fronthaul management plane interface. Moreover, an ORAN access node may be a logical node in a physical node. Furthermore, an ORAN network node may be implemented in a virtualization environment (described further below) in which one or more network functions are virtualized. For example, the virtualization environment may include an O-Cloud computing platform orchestrated by a Service Management and Orchestration Framework via an 0-2 interface defined by the O-RAN Alliance or comparable technologies. The network nodes QQ110 facilitate direct or indirect connection of user equipment (UE), such as by connecting UEs QQ112a, QQ112b, QQ112c, and QQ112d (one or more of which may be generally referred to as UEs QQ112) to the core network QQ106 over one or more wireless connections.

[0113] Example wireless communications over a wireless connection include transmitting and/or receiving wireless signals using electromagnetic waves, radio waves, infrared waves, and/or other types of signals suitable for conveying information without the use of wires, cables, or other material conductors. Moreover, in different embodiments, the communication system QQ100 may include any number of wired or wireless networks, network nodes, UEs, and/or any other components or systems that may facilitate or participate in the communication of data and/or signals whether via wired or wireless connections. The communication system QQ100 may include and/or interface with any type of communication, telecommunication, data, cellular, radio network, and/or other similar type of system.

[0114] TheUEs QQ112 may be any ofa wide variety of communication devices, including wireless devices arranged, configured, and/or operable to communicate wirelessly with the network nodes QQ110 and other communication devices. Similarly, the network nodes QQ110 are arranged, capable, configured, and/or operable to communicate directly or indirectly with the UEs QQ112 and/or with other network nodes or equipment in the telecommunication network QQ102 to enable and/or provide network access, such as wireless network access, and/or to perform other functions, such as administration in the telecommunication network QQ102.

[0115] In the depicted example, the core network QQ106 connects the network nodes QQ110 to one or more host computing systems, such as host QQ116. These connections may be direct or indirect via one or more intermediary networks or devices. In other examples, network nodes may be directly coupled to hosts. The core network QQ106 includes one more core network nodes (e.g., core network node QQ108) that are structured with hardware and software components. Features of these components may be substantially similar to those described with respect to the UEs, network nodes, and/or hosts, such that the descriptions thereof are generally applicable to the corresponding components of the core network node QQ108. Example core network nodes include functions of one or more of a Mobile Switching Center (MSC), Mobility Management Entity (MME), Home Subscriber Server (HSS), Access and Mobility Management Function (AMF), Session Management Function (SMF), Authentication Server Function (AUSF), Subscription Identifier De-concealing function (SIDF), Unified Data Management (UDM), Security Edge Protection Proxy (SEPP), Network Exposure Function (NEF), and/or a User Plane Function (UPF).

[0116] The host QQ116 may be under the ownership or control of a service provider other than an operator or provider of the access network QQ104 and/or the telecommunication network QQ102. The host QQ116 may host a variety of applications to provide one or more service. Examples of such applications include live and pre-recorded audio/video content, data collection services such as retrieving and compiling data on various ambient conditions detected by a plurality of UEs, analytics functionality, social media, functions for controlling or otherwise interacting with remote devices, functions for an alarm and surveillance center, or any other such function performed by a server. [0117] As a whole, the communication system QQ100 of Figure QQ1 enables connectivity between the UEs, network nodes, and hosts. In that sense, the communication system may be configured to operate according to predefined rules or procedures, such as specific standards that include, but are not limited to: Global System for Mobile Communications (GSM); Universal Mobile Telecommunications System (UMTS); Long Term Evolution (LTE), and/or other suitable 2G, 3G, 4G, 5G standards, or any applicable future generation standard (e.g., 6G); wireless local area network (WLAN) standards, such as the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standards (WiFi); and/or any other appropriate wireless communication standard, such as the Worldwide Interoperability for Microwave Access (WiMax), Bluetooth, Z-Wave, Near Field Communication (NFC) ZigBee, LiFi, and/or any low-power wide-area network (LPWAN) standards such as LoRa and Sigfox.

[0118] In some examples, the telecommunication network QQ102 is a cellular network that implements 3GPP standardized features. Accordingly, the telecommunications network QQ102 may support network slicing to provide different logical networks to different devices that are connected to the telecommunication network QQ102. For example, the telecommunications network QQ102 may provide Ultra Reliable Low Latency Communication (URLLC) services to some UEs, while providing Enhanced Mobile Broadband (eMBB) services to other UEs, and/or Massive Machine Type Communication (mMTC)/Massive loT services to yet further UEs.

[0119] In some examples, the UEs QQ112 are configured to transmit and/or receive information without direct human interaction. For instance, a UE may be designed to transmit information to the access network QQ104 on a predetermined schedule, when triggered by an internal or external event, or in response to requests from the access network QQ104. Additionally, a UE may be configured for operating in single- or multi-RAT or multi -standard mode. For example, a UE may operate with any one or combination of Wi-Fi, NR (New Radio) and LTE, i.e., being configured for multi-radio dual connectivity (MR-DC), such as E-UTRAN (Evolved-UMTS Terrestrial Radio Access Network) New Radio - Dual Connectivity (EN- DC).

[0120] In the example, the hub QQ114 communicates with the access network QQ104 to facilitate indirect communication between one or more UEs (e.g., UE QQ112c and/or QQ112d) and network nodes (e.g., network node QQ110b). In some examples, the hub QQ114 may be a controller, router, content source and analytics, or any of the other communication devices described herein regarding UEs. For example, the hub QQ114 may be a broadband router enabling access to the core network QQ106 for the UEs. As another example, the hub QQ114 may be a controller that sends commands or instructions to one or more actuators in the UEs. Commands or instructions may be received from the UEs, network nodes QQ110, or by executable code, script, process, or other instructions in the hub QQ114. As another example, the hub QQ114 may be a data collector that acts as temporary storage for UE data and, in some embodiments, may perform analysis or other processing of the data. As another example, the hub QQ114 may be a content source. For example, for a UE that is a VR device, display, loudspeaker, or other media delivery device, the hub QQ114 may retrieve VR assets, video, audio, or other media or data related to sensory information via a network node, which the hub QQ114 then provides to the UE either directly, after performing local processing, and/or after adding additional local content. In still another example, the hub QQ114 acts as a proxy server or orchestrator for the UEs, in particular if one or more of the UEs are low energy loT devices. [0121] The hub QQ114 may have a constant/persi stent or intermittent connection to the network node QQ110b. The hub QQ114 may also allow for a different communication scheme and/or schedule between the hub QQ114 and UEs (e.g., UE QQ112c and/or QQ112d), and between the hub QQ114 and the core network QQ106. In other examples, the hub QQ114 is connected to the core network QQ106 and/or one or more UEs via a wired connection. Moreover, the hub QQ114 may be configured to connect to an M2M service provider over the access network QQ104 and/or to another UE over a direct connection. In some scenarios, UEs may establish a wireless connection with the network nodes QQ110 while still connected via the hub QQ114 via a wired or wireless connection. In some embodiments, the hub QQ114 may be a dedicated hub - that is, a hub whose primary function is to route communications to/from the UEs from/to the network node QQ110b. In other embodiments, the hub QQ114 may be a non-dedicated hub - that is, a device which is capable of operating to route communications between the UEs and network node QQ110b, but which is additionally capable of operating as a communication start and/or end point for certain data channels.

[0122] Figure 10 shows a communication device, e.g., a UE QQ200, in accordance with some embodiments. The UE QQ200 presents additional details of some embodiments of the UE QQ112 of Figure 1. As used herein, a UE refers to a device capable, configured, arranged and/or operable to communicate wirelessly with network nodes and/or other UEs. Examples of a UE include, but are not limited to, a smart phone, mobile phone, cell phone, voice over IP (VoIP) phone, wireless local loop phone, desktop computer, personal digital assistant (PDA), wireless cameras, gaming console or device, music storage/playback device, wearable terminal device, wireless endpoint, mobile station, tablet, laptop, laptop-embedded equipment (LEE), laptop-mounted equipment (LME), an Augmented Reality (AR) or Virtual Reality (VR) device, wireless customer-premise equipment (CPE), vehicle, vehicle-mounted or vehicle embedded/integrated wireless device, etc. Other examples include any UE identified by the 3rd Generation Partnership Project (3GPP), including a narrow band internet of things (NB-IoT) UE, a machine type communication (MTC) UE, and/or an enhanced MTC (eMTC) UE.

[0123] A UE may support device-to-device (D2D) communication, for example by implementing a 3 GPP standard for sidelink communication, Dedicated Short-Range Communication (DSRC), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), or vehicle- to-everything (V2X). In other examples, a UE may not necessarily have a user in the sense of a human user who owns and/or operates the relevant device. Instead, a UE may represent a device that is intended for sale to, or operation by, a human user but which may not, or which may not initially, be associated with a specific human user (e.g., a smart sprinkler controller). Alternatively, a UE may represent a device that is not intended for sale to, or operation by, an end user but which may be associated with or operated for the benefit of a user (e.g., a smart power meter).

[0124] The UE QQ200 includes processing circuitry QQ202 that is operatively coupled via a bus QQ204 to an input/output interface QQ206, a power source QQ208, a memory QQ210, a communication interface QQ212, and/or any other component, or any combination thereof. Certain UEs may utilize all or a subset of the components shown in Figure QQ2. The level of integration between the components may vary from one UE to another UE. Further, certain UEs may contain multiple instances of a component, such as multiple processors, memories, transceivers, transmitters, receivers, etc.

[0125] The processing circuitry QQ202 is configured to process instructions and data and may be configured to implement any sequential state machine operative to execute instructions stored as machine-readable computer programs in the memory QQ210. The processing circuitry QQ202 may be implemented as one or more hardware-implemented state machines (e.g., in discrete logic, field-programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), etc.); programmable logic together with appropriate firmware; one or more stored computer programs, general-purpose processors, such as a microprocessor or digital signal processor (DSP), together with appropriate software; or any combination of the above. For example, the processing circuitry QQ202 may include multiple central processing units (CPUs).

[0126] In the example, the input/output interface QQ206 may be configured to provide an interface or interfaces to an input device, output device, or one or more input and/or output devices. Examples of an output device include a speaker, a sound card, a video card, a display, a monitor, a printer, an actuator, an emitter, a smartcard, another output device, or any combination thereof. An input device may allow a user to capture information into the UE QQ200. Examples of an input device include a touch-sensitive or presence-sensitive display, a camera (e.g., a digital camera, a digital video camera, a web camera, etc.), a microphone, a sensor, a mouse, a trackball, a directional pad, a trackpad, a scroll wheel, a smartcard, and the like. The presence-sensitive display may include a capacitive or resistive touch sensor to sense input from a user. A sensor may be, for instance, an accelerometer, a gyroscope, a tilt sensor, a force sensor, a magnetometer, an optical sensor, a proximity sensor, a biometric sensor, etc., or any combination thereof. An output device may use the same type of interface port as an input device. For example, a Universal Serial Bus (USB) port may be used to provide an input device and an output device.

[0127] In some embodiments, the power source QQ208 is structured as a battery or battery pack. Other types of power sources, such as an external power source (e.g., an electricity outlet), photovoltaic device, or power cell, may be used. The power source QQ208 may further include power circuitry for delivering power from the power source QQ208 itself, and/or an external power source, to the various parts of the UE QQ200 via input circuitry or an interface such as an electrical power cable. Delivering power may be, for example, for charging of the power source QQ208. Power circuitry may perform any formatting, converting, or other modification to the power from the power source QQ208 to make the power suitable for the respective components of the UE QQ200 to which power is supplied.

[0128] The memory QQ210 may be or be configured to include memory such as random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic disks, optical disks, hard disks, removable cartridges, flash drives, and so forth. In one example, the memory QQ210 includes one or more application programs QQ214, such as an operating system, web browser application, a widget, gadget engine, or other application, and corresponding data QQ216. The memory QQ210 may store, for use by the UE QQ200, any of a variety of various operating systems or combinations of operating systems.

[0129] The memory QQ210 may be configured to include a number of physical drive units, such as redundant array of independent disks (RAID), flash memory, USB flash drive, external hard disk drive, thumb drive, pen drive, key drive, high-density digital versatile disc (HD-DVD) optical disc drive, internal hard disk drive, Blu-Ray optical disc drive, holographic digital data storage (HDDS) optical disc drive, external mini-dual in-line memory module (DIMM), synchronous dynamic random access memory (SDRAM), external micro-DIMM SDRAM, smartcard memory such as tamper resistant module in the form of a universal integrated circuit card (UICC) including one or more subscriber identity modules (SIMs), such as a USIM and/or ISIM, other memory, or any combination thereof. The UICC may for example be an embedded UICC (eUICC), integrated UICC (iUICC) or a removable UICC commonly known as ‘SIM card.’ The memory QQ210 may allow the UE QQ200 to access instructions, application programs and the like, stored on transitory or non-transitory memory media, to off-load data, or to upload data. An article of manufacture, such as one utilizing a communication system may be tangibly embodied as or in the memory QQ210, which may be or comprise a device-readable storage medium.

[0130] The processing circuitry QQ202 may be configured to communicate with an access network or other network using the communication interface QQ212. The communication interface QQ212 may comprise one or more communication subsystems and may include or be communicatively coupled to an antenna QQ222. The communication interface QQ212 may include one or more transceivers used to communicate, such as by communicating with one or more remote transceivers of another device capable of wireless communication (e.g., another UE or a network node in an access network). Each transceiver may include a transmitter QQ218 and/or a receiver QQ220 appropriate to provide network communications (e.g., optical, electrical, frequency allocations, and so forth). Moreover, the transmitter QQ218 and receiver QQ220 may be coupled to one or more antennas (e.g., antenna QQ222) and may share circuit components, software or firmware, or alternatively be implemented separately.

[0131] In the illustrated embodiment, communication functions of the communication interface QQ212 may include cellular communication, Wi-Fi communication, LPWAN communication, data communication, voice communication, multimedia communication, short-range communications such as Bluetooth, near-field communication, location-based communication such as the use of the global positioning system (GPS) to determine a location, another like communication function, or any combination thereof. Communications may be implemented in according to one or more communication protocols and/or standards, such as IEEE 802.11, Code Division Multiplexing Access (CDMA), Wideband Code Division Multiple Access (WCDMA), GSM, LTE, New Radio (NR), UMTS, WiMax, Ethernet, transmission control protocol/intemet protocol (TCP/IP), synchronous optical networking (SONET), Asynchronous Transfer Mode (ATM), QUIC, Hypertext Transfer Protocol (HTTP), and so forth. [0132] Regardless of the type of sensor, a UE may provide an output of data captured by its sensors, through its communication interface QQ212, via a wireless connection to a network node. Data captured by sensors of a UE can be communicated through a wireless connection to a network node via another UE. The output may be periodic (e.g., once every 15 minutes if it reports the sensed temperature), random (e.g., to even out the load from reporting from several sensors), in response to a triggering event (e.g., when moisture is detected an alert is sent), in response to a request (e.g., a user initiated request), or a continuous stream (e.g., a live video feed of a patient).

[0133] As another example, a UE comprises an actuator, a motor, or a switch, related to a communication interface configured to receive wireless input from a network node via a wireless connection. In response to the received wireless input the states of the actuator, the motor, or the switch may change. For example, the UE may comprise a motor that adjusts the control surfaces or rotors of a drone in flight according to the received input or to a robotic arm performing a medical procedure according to the received input.

[0134] A UE, when in the form of an Internet of Things (loT) device, may be a device for use in one or more application domains, these domains comprising, but not limited to, city wearable technology, extended industrial application and healthcare. Non-limiting examples of such an loT device are a device which is or which is embedded in: a connected refrigerator or freezer, a TV, a connected lighting device, an electricity meter, a robot vacuum cleaner, a voice controlled smart speaker, a home security camera, a motion detector, a thermostat, a smoke detector, a door/window sensor, a flood/moisture sensor, an electrical door lock, a connected doorbell, an air conditioning system like a heat pump, an autonomous vehicle, a surveillance system, a weather monitoring device, a vehicle parking monitoring device, an electric vehicle charging station, a smart watch, a fitness tracker, a wearable for tactile augmentation or sensory enhancement, a water sprinkler, an animal- or item-tracking device, a sensor for monitoring a plant or animal, an industrial robot, an Unmanned Aerial Vehicle (UAV), and any kind of medical device, like a heart rate monitor or a remote controlled surgical robot. A UE in the form of an loT device comprises circuitry and/or software in dependence of the intended application of the loT device in addition to other components as described in relation to the UE QQ200 shown in Figure QQ2.

[0135] As yet another specific example, in an loT scenario, a UE may represent a machine or other device that performs monitoring and/or measurements, and transmits the results of such monitoring and/or measurements to another UE and/or a network node. The UE may in this case be an M2M device, which may in a 3GPP context be referred to as an MTC device. As one particular example, the UE may implement the 3GPP NB-IoT standard. In other scenarios, a UE may represent a vehicle, such as a car, a bus, a truck, a ship and an airplane, or other equipment that is capable of monitoring and/or reporting on its operational status or other functions associated with its operation.

[0136] In practice, any number of UEs may be used together with respect to a single use case. For example, a first UE might be or be integrated in a drone and provide the drone’s speed information (obtained through a speed sensor) to a second UE that is a remote controller operating the drone. When the user makes changes from the remote controller, the first UE may adjust the throttle on the drone (e.g., by controlling an actuator) to increase or decrease the drone’s speed. The first and/or the second UE can also include more than one of the functionalities described above. For example, a UE might comprise the sensor and the actuator, and handle communication of data for both the speed sensor and the actuators.

[0137] Figure 11 shows a network node QQ300 (e.g., a gNB) in accordance with some embodiments. As used herein, network node refers to equipment capable, configured, arranged and/or operable to communicate directly or indirectly with a UE and/or with other network nodes or equipment, in a telecommunication network. Examples of network nodes include, but are not limited to, access points (APs) (e.g., radio access points), base stations (BSs) (e.g., radio base stations, Node Bs, evolved Node Bs (eNBs) and NR NodeBs (gNBs)), 0-RAN nodes or components of an O-RAN node (e.g., O-RU, O-DU, O-CU).

[0138] Base stations may be categorized based on the amount of coverage they provide (or, stated differently, their transmit power level) and so, depending on the provided amount of coverage, may be referred to as femto base stations, pico base stations, micro base stations, or macro base stations. A base station may be a relay node or a relay donor node controlling a relay. A network node may also include one or more (or all) parts of a distributed radio base station such as centralized digital units, distributed units (e.g., in an O-RAN access node) and/or remote radio units (RRUs), sometimes referred to as Remote Radio Heads (RRHs). Such remote radio units may or may not be integrated with an antenna as an antenna integrated radio. Parts of a distributed radio base station may also be referred to as nodes in a distributed antenna system (DAS).

[0139] Other examples of network nodes include multiple transmission point (multi-TRP) 5G access nodes, multi -standard radio (MSR) equipment such as MSR BSs, network controllers such as radio network controllers (RNCs) or base station controllers (BSCs), base transceiver stations (BTSs), transmission points, transmission nodes, multi-cell/multicast coordination entities (MCEs), Operation and Maintenance (O&M) nodes, Operations Support System (OSS) nodes, Self-Organizing Network (SON) nodes, positioning nodes (e.g., Evolved Serving Mobile Location Centers (E-SMLCs)), and/or Minimization of Drive Tests (MDTs). [0140] The network node QQ300 includes a processing circuitry QQ302, a memory QQ304, a communication interface QQ306, and a power source QQ308. The network node QQ300 may be composed of multiple physically separate components (e.g., a NodeB component and a RNC component, or a BTS component and a BSC component, etc.), which may each have their own respective components. In certain scenarios in which the network node QQ300 comprises multiple separate components (e.g., BTS and BSC components), one or more of the separate components may be shared among several network nodes. For example, a single RNC may control multiple NodeBs. In such a scenario, each unique NodeB and RNC pair, may in some instances be considered a single separate network node. In some embodiments, the network node QQ300 may be configured to support multiple radio access technologies (RATs). In such embodiments, some components may be duplicated (e.g., separate memory QQ304 for different RATs) and some components may be reused (e.g., a same antenna QQ310 may be shared by different RATs). The network node QQ300 may also include multiple sets of the various illustrated components for different wireless technologies integrated into network node QQ300, for example GSM, WCDMA, LTE, NR, WiFi, Zigbee, Z-wave, LoRaWAN, Radio Frequency Identification (RFID) or Bluetooth wireless technologies. These wireless technologies may be integrated into the same or different chip or set of chips and other components within network node QQ300.

[0141] The processing circuitry QQ302 may comprise a combination of one or more of a microprocessor, controller, microcontroller, central processing unit, digital signal processor, application-specific integrated circuit, field programmable gate array, or any other suitable computing device, resource, or combination of hardware, software and/or encoded logic operable to provide, either alone or in conjunction with other network node QQ300 components, such as the memory QQ304, to provide network node QQ300 functionality.

[0142] In some embodiments, the processing circuitry QQ302 includes a system on a chip (SOC). In some embodiments, the processing circuitry QQ302 includes one or more of radio frequency (RF) transceiver circuitry QQ312 and baseband processing circuitry QQ314. In some embodiments, the radio frequency (RF) transceiver circuitry QQ312 and the baseband processing circuitry QQ314 may be on separate chips (or sets of chips), boards, or units, such as radio units and digital units. In alternative embodiments, part or all of RF transceiver circuitry QQ312 and baseband processing circuitry QQ314 may be on the same chip or set of chips, boards, or units. [0143] The memory QQ304 may comprise any form of volatile or non-volatile computer- readable memory including, without limitation, persistent storage, solid-state memory, remotely mounted memory, magnetic media, optical media, random access memory (RAM), read-only memory (ROM), mass storage media (for example, a hard disk), removable storage media (for example, a flash drive, a Compact Disk (CD) or a Digital Video Disk (DVD)), and/or any other volatile or non-volatile, non-transitory device-readable and/or computerexecutable memory devices that store information, data, and/or instructions that may be used by the processing circuitry QQ302. The memory QQ304 may store any suitable instructions, data, or information, including a computer program, software, an application including one or more of logic, rules, code, tables, and/or other instructions capable of being executed by the processing circuitry QQ302 and utilized by the network node QQ300. The memory QQ304 may be used to store any calculations made by the processing circuitry QQ302 and/or any data received via the communication interface QQ306. In some embodiments, the processing circuitry QQ302 and memory QQ304 is integrated.

[0144] The communication interface QQ306 is used in wired or wireless communication of signaling and/or data between a network node, access network, and/or UE. As illustrated, the communication interface QQ306 comprises port(s)/terminal(s) QQ316 to send and receive data, for example to and from a network over a wired connection. The communication interface QQ306 also includes radio front-end circuitry QQ318 that may be coupled to, or in certain embodiments a part of, the antenna QQ310. Radio front-end circuitry QQ318 comprises filters QQ320 and amplifiers QQ322. The radio front-end circuitry QQ318 may be connected to an antenna QQ310 and processing circuitry QQ302. The radio front-end circuitry may be configured to condition signals communicated between antenna QQ310 and processing circuitry QQ302. The radio front-end circuitry QQ318 may receive digital data that is to be sent out to other network nodes or UEs via a wireless connection. The radio front-end circuitry QQ318 may convert the digital data into a radio signal having the appropriate channel and bandwidth parameters using a combination of filters QQ320 and/or amplifiers QQ322. The radio signal may then be transmitted via the antenna QQ310. Similarly, when receiving data, the antenna QQ310 may collect radio signals which are then converted into digital data by the radio front-end circuitry QQ318. The digital data may be passed to the processing circuitry QQ302. In other embodiments, the communication interface may comprise different components and/or different combinations of components.

[0145] In certain alternative embodiments, the network node QQ300 does not include separate radio front-end circuitry QQ318, instead, the processing circuitry QQ302 includes radio front-end circuitry and is connected to the antenna QQ310. Similarly, in some embodiments, all or some of the RF transceiver circuitry QQ312 is part of the communication interface QQ306. In still other embodiments, the communication interface QQ306 includes one or more ports or terminals QQ316, the radio front-end circuitry QQ318, and the RF transceiver circuitry QQ312, as part of a radio unit (not shown), and the communication interface QQ306 communicates with the baseband processing circuitry QQ314, which is part of a digital unit (not shown).

[0146] The antenna QQ310 may include one or more antennas, or antenna arrays, configured to send and/or receive wireless signals. The antenna QQ310 may be coupled to the radio front-end circuitry QQ318 and may be any type of antenna capable of transmitting and receiving data and/or signals wirelessly. In certain embodiments, the antenna QQ310 is separate from the network node QQ300 and connectable to the network node QQ300 through an interface or port.

[0147] The antenna QQ310, communication interface QQ306, and/or the processing circuitry QQ302 may be configured to perform any receiving operations and/or certain obtaining operations described herein as being performed by the network node. Any information, data and/or signals may be received from a UE, another network node and/or any other network equipment. Similarly, the antenna QQ310, the communication interface QQ306, and/or the processing circuitry QQ302 may be configured to perform any transmitting operations described herein as being performed by the network node. Any information, data and/or signals may be transmitted to a UE, another network node and/or any other network equipment.

[0148] The power source QQ308 provides power to the various components of network node QQ300 in a form suitable for the respective components (e.g., at a voltage and current level needed for each respective component). The power source QQ308 may further comprise, or be coupled to, power management circuitry to supply the components of the network node QQ300 with power for performing the functionality described herein. For example, the network node QQ300 may be connectable to an external power source (e.g., the power grid, an electricity outlet) via an input circuitry or interface such as an electrical cable, whereby the external power source supplies power to power circuitry of the power source QQ308. As a further example, the power source QQ308 may comprise a source of power in the form of a battery or battery pack which is connected to, or integrated in, power circuitry. The battery may provide backup power should the external power source fail. [0149] Embodiments of the network node QQ300 may include additional components beyond those shown in Figure QQ3 for providing certain aspects of the network node’s functionality, including any of the functionality described herein and/or any functionality necessary to support the subject matter described herein. For example, the network node QQ300 may include user interface equipment to allow input of information into the network node QQ300 and to allow output of information from the network node QQ300. This may allow a user to perform diagnostic, maintenance, repair, and other administrative functions for the network node QQ300. In some embodiments providing a core network node, such as core network node 108 ofFIG. QQ1, some components, such as the radio front-end circuitry QQ318 and the RF transceiver circuitry QQ312 may be omitted.

[0150] Figure 12 is a block diagram illustrating a virtualization environment QQ400 in which functions implemented by some embodiments may be virtualized. In the present context, virtualizing means creating virtual versions of apparatuses or devices which may include virtualizing hardware platforms, storage devices and networking resources. As used herein, virtualization can be applied to any device described herein, or components thereof, and relates to an implementation in which at least a portion of the functionality is implemented as one or more virtual components. Some or all of the functions described herein may be implemented as virtual components executed by one or more virtual machines (VMs) implemented in one or more virtual environments QQ400 hosted by one or more of hardware nodes, such as a hardware computing device that operates as a network node, UE, core network node, or host. Further, in embodiments in which the virtual node does not require radio connectivity (e.g., a core network node or host), then the node may be entirely virtualized. In some embodiments, the virtualization environment QQ400 includes components defined by the O-RAN Alliance, such as an O-Cloud environment orchestrated by a Service Management and Orchestration Framework via an 0-2 interface. Virtualization may facilitate distributed implementations of a network node, UE, core network node, or host.

[0151] Applications QQ402 (which may alternatively be called software instances, virtual appliances, network functions, virtual nodes, virtual network functions, etc.) are run in the virtualization environment Q400 to implement some of the features, functions, and/or benefits of some of the embodiments disclosed herein.

[0152] Hardware QQ404 includes processing circuitry, memory that stores software and/or instructions executable by hardware processing circuitry, and/or other hardware devices as described herein, such as a network interface, input/output interface, and so forth. Software may be executed by the processing circuitry to instantiate one or more virtualization layers QQ406 (also referred to as hypervisors or virtual machine monitors (VMMs)), provide VMs QQ408a and QQ408b (one or more of which may be generally referred to as VMs QQ408), and/or perform any of the functions, features and/or benefits described in relation with some embodiments described herein. The virtualization layer QQ406 may present a virtual operating platform that appears like networking hardware to the VMs QQ408.

[0153] The VMs QQ408 comprise virtual processing, virtual memory, virtual networking or interface and virtual storage, and may be run by a corresponding virtualization layer QQ406. Different embodiments of the instance of a virtual appliance QQ402 may be implemented on one or more of VMs QQ408, and the implementations may be made in different ways. Virtualization of the hardware is in some contexts referred to as network function virtualization (NFV). NFV may be used to consolidate many network equipment types onto industry standard high volume server hardware, physical switches, and physical storage, which can be located in data centers, and customer premise equipment.

[0154] In the context of NFV, a VM QQ408 may be a software implementation of a physical machine that runs programs as if they were executing on a physical, non-virtualized machine. Each of the VMs QQ408, and that part of hardware QQ404 that executes that VM, be it hardware dedicated to that VM and/or hardware shared by that VM with others of the VMs, forms separate virtual network elements. Still in the context of NFV, a virtual network function is responsible for handling specific network functions that run in one or more VMs QQ408 on top of the hardware QQ404 and corresponds to the application QQ402.

[0155] Hardware QQ404 may be implemented in a standalone network node with generic or specific components. Hardware QQ404 may implement some functions via virtualization. Alternatively, hardware QQ404 may be part of a larger cluster of hardware (e.g., such as in a data center or CPE) where many hardware nodes work together and are managed via management and orchestration QQ410, which, among others, oversees lifecycle management of applications QQ402. In some embodiments, hardware QQ404 is coupled to one or more radio units that each include one or more transmitters and one or more receivers that may be coupled to one or more antennas. Radio units may communicate directly with other hardware nodes via one or more appropriate network interfaces and may be used in combination with the virtual components to provide a virtual node with radio capabilities, such as a radio access node or a base station. In some embodiments, some signaling can be provided with the use of a control system QQ412 which may alternatively be used for communication between hardware nodes and radio units. [0156] Although the computing devices described herein (e.g., UEs, network nodes) may include the illustrated combination of hardware components, other embodiments may comprise computing devices with different combinations of components. It is to be understood that these computing devices may comprise any suitable combination of hardware and/or software needed to perform the tasks, features, functions and methods disclosed herein. Determining, calculating, obtaining or similar operations described herein may be performed by processing circuitry, which may process information by, for example, converting the obtained information into other information, comparing the obtained information or converted information to information stored in the network node, and/or performing one or more operations based on the obtained information or converted information, and as a result of said processing making a determination. Moreover, while components are depicted as single boxes located within a larger box, or nested within multiple boxes, in practice, computing devices may comprise multiple different physical components that make up a single illustrated component, and functionality may be partitioned between separate components. For example, a communication interface may be configured to include any of the components described herein, and/or the functionality of the components may be partitioned between the processing circuitry and the communication interface. In another example, non-computationally intensive functions of any of such components may be implemented in software or firmware and computationally intensive functions may be implemented in hardware.

[0157] In certain embodiments, some or all of the functionality described herein may be provided by processing circuitry executing instructions stored on in memory, which in certain 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 functionality may be provided by the processing circuitry without executing instructions stored on a separate or discrete device-readable storage medium, such as in a hard-wired manner. In any of those particular embodiments, whether executing instructions stored on a non-transitory computer- readable storage medium or not, the processing circuitry can be configured to perform the described functionality. The benefits provided by such functionality are not limited to the processing circuitry alone or to other components of the computing device, but are enjoyed by the computing device as a whole, and/or by end users and a wireless network generally.

REFERENCES

1. 3GPP RP-234065, New WID: Enhancements of network energy savings for NR, 3GPP TSG RAN Meeting #102, Dec. 11-15, 2024. 2. 3GPP TR 38.864 V18.1.0, Study on network energy savings for NR.

EMBODIMENTS

Embodiments may be described by the following numbered clauses: l.A method performed by a communication device for conducting a multiple synchronization signal block, SSB, train sequence reception operation, the method comprising: receiving, from a network node, a configuration message comprising a first set of configuration parameters for one or more additional SSB transmission configurations; receiving, from the network node, an indication of at least one SSB transmission configuration that includes at least an index to one or more of the additional SSB transmission configurations; and receiving, from the network node, at least one additional SSB corresponding to the at least one SSB transmission configuration associated to the indication, wherein the at least one SSB transmission configuration indicates a transmission of one or more SSB trains.

2. The method of embodiment 1, wherein the first set of parameters is an incomplete description of the at least one SSB transmission configuration, and the indication further comprises a second set of parameters for the at least one SSB transmission configuration.

3. The method of any one of embodiments 1 to 2, wherein the first set of parameters is a default description of the transmission configuration, and the indication further comprises a second set of parameters overriding one or more parameters included in the first set of parameters.

4.The method of any one of embodiments 1 to 3 wherein the indication indicates a onetime additional SSB train transmission.

5. The method of any one of embodiments 1 to 4, wherein the indication indicates a duration or a number of multiple additional SSB train transmissions.

6.The method of any one of embodiments 1 to 5, wherein the indication indicates an additional SSB train transmissions until further notice.

7. The method of any one of embodiments 1 to 6 further comprising receiving a second indication indicating a termination of the additional SSB train transmissions.

8. The method of any one of embodiments 1 to 7, wherein the indication is a dedicated or group transmission that includes one or more of DCI and/or MAC CE.

9.The method of any one of embodiments 1 to 8, wherein the indication is implicitly provided via a confirmation and/or acknowledgement received by the communication device.

10. The method of any one of embodiments 1 to 9, wherein the indication is implicitly provided via an instruction to perform a procedure.

11. The method of any one of embodiments 1 to 10 further comprising transmitting preference information to the network node, wherein the preference information indicates preferred parameter values preferred by the communication device for one or more parameters in the first set or the second set.

12. The method of any one of embodiments 1 to 11 further comprising transmitting a request to the network node for an additional SSB transmission. 13. The method of any one of embodiments 1 to 12, wherein the request indicates preferred parameter values for one or more parameters in the first set or the second set.

14. The method of any one of embodiments 1 to 13 further comprising receiving a confirmation from the gNB for the additional SSB transmission.

15. The method of any one of embodiments 1 to 14, wherein the communication device is a user equipment, UE.

16. The method of any one of embodiments 1 to 15, wherein the network node is a gNodeB.

17. A communication device, comprising: processing circuitry; and at least one memory storing instructions executable by the processing circuitry to perform operations to: receive, from a network node, a configuration message comprising a first set of configuration parameters for one or more additional SSB transmission configurations; receive, from the network node, an indication of at least one SSB transmission configuration that includes at least an index to one or more of the additional SSB transmission configurations; and receive, from the network node, at least one additional SSB corresponding to the at least one SSB transmission configuration associated to the indication, wherein the at least one SSB transmission configuration indicates a transmission of one or more SSB trains.

18. The communication device of embodiment 17, wherein the at least one memory stores further instruction executable by the processing circuitry to perform further operations comprising operations of any one of embodiments 2 to 16.

19. A non-transitory computer readable medium storing instructions executable by processing circuitry of a communication device the instructions executed by the processing circuitry to perform operations comprising: receiving, from a network node, a configuration message comprising a first set of configuration parameters for one or more additional SSB transmission configurations; receiving, from the network node, an indication of at least one SSB transmission configuration that includes at least an index to one or more of the additional SSB transmission configurations; and receiving, from the network node, at least one additional SSB corresponding to the at least one SSB transmission configuration associated to the indication, wherein the at least one SSB transmission configuration indicates a transmission of one or more SSB trains.

20. The computer program product of embodiment 19, wherein the non-transitory computer readable medium storing further instruction executable by the processing circuitry of the communication device, the further instructions executed by the processing circuitry to perform further operations comprising operations of any one of embodiments 2 to 16. 21.A method in a communication device configured for receiving an activation indication of a configuration of a feature, the method comprising: receiving, from a network node, a configuration message including a first set of parameters for one or more configurations of the feature; receiving, from the network node, an indication of a first configuration, including an index to the first configuration in the configuration message and a second set of parameters; and using the feature according to the first configuration.

22. The method of embodiment 21, wherein the first set of parameters is an incomplete description of the first configuration, and the second set of parameters completes the full parameter set for first configuration.

23. The method of any one of embodiments 21 to 22, wherein the first set of parameters is a default description of the first configuration, and the second set of parameters overrides one or more parameters provided in the first set of parameters.

24. The method of any one of embodiments 21 to 23, wherein the communication device is a user equipment, UE.

25. The method of any one of embodiments 21 to 24, wherein the network node is a gNodeB.

26. A communication device, comprising: processing circuitry; and at least one memory storing instructions executable by the processing circuitry to perform operations to: receive, from a network node, a configuration message including a first set of parameters for one or more configurations of the feature; receive, from the network node, an indication of a first configuration, including an index to the first configuration in the configuration message and a second set of parameters; and use the feature according to the first configuration.

27. The communication device of embodiment 26, wherein the at least one memory stores further instruction executable by the processing circuitry to perform further operations comprising operations of any one of claims 22 to 25.

28. A non-transitory computer readable medium storing instructions executable by processing circuitry of a communication device, the instructions executed by the processing circuitry to perform operations comprising: receiving, from a network node, a configuration message including a first set of parameters for one or more configurations of the feature; receiving, from the network node, an indication of a first configuration, including an index to the first configuration in the configuration message and a second set of parameters; and using the feature according to the first configuration. 29. The computer program product of embodiment 28, wherein the non-transitory computer readable medium storing further instruction executable by the processing circuitry of the communication device, the further instructions executed by the processing circuitry to perform further operations comprising operations of any one of embodiments 22 to 25.

Claims

1. A method performed by a User Equipment, UE, for receiving synchronization signal blocks, SSBs, the method comprising: receiving, from a network node, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations; receiving, from the network node, an indication of at least one of the one or more SSB transmission configurations; wherein the indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations; wherein the indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations; and receiving at least one SSB corresponding to the at least one of the one or more SSB transmission configurations.

2. The method of claim 1, wherein the first set of one or more parameters provides an incomplete description of the at least one of the one or more SSB transmission configurations.

3. The method of claim 2, wherein the second set of one or more parameters completes a full parameter set for the at least one of the one or more SSB transmission configurations.

4. The method of any preceding claim, wherein one or more parameters in the second set of one or more parameters override one or more parameters included in the first set of one or more parameters.

5. The method of any preceding claim, wherein the indication is an activation indication for the at least one of the one or more SSB transmission configurations.

6. The method of any preceding claim, wherein the one or more SSB transmission configurations comprise one or more on-demand SSB transmission configurations.

7. The method of any preceding claim wherein the indication comprises a Downlink Control Information, DCI.

8. The method of any of claims 1 to 6, wherein the indication comprises a Medium Access Control - Control Element, MAC CE.

9. The method of any preceding claim further comprising transmitting preference information to the network node, wherein the preference information indicates preferred parameter values preferred by the UE for one or more parameters in the first set or the second set of one or more parameters.

10. The method of any one preceding claim, further comprising transmitting a request to the network node for at least one SSB transmission.

11. The method of claim 10, wherein the request indicates a preferred parameter value for one or more parameters in the first set or the second set of one or more parameters.

12. A User Equipment, comprising: processing circuitry; and at least one memory storing instructions executable by the processing circuitry to perform operations to: receive, from a network node, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations; receive, from the network node, an indication of at least one of the one or more SSB transmission configurations; wherein the indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations; wherein the indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations; and receive, from the network node, at least one SSB corresponding to the at least one of the one or more SSB transmission configurations.

13. The User Equipment of claim 12, wherein the at least one memory stores further instruction executable by the processing circuitry to perform further operations comprising operations of any one of claims 2 to 11.

14. A method performed by a network node for enabling a User Equipment, UE, to receive at least one Synchronization Signal Block, SSB, the method comprising: transmitting, to the UE, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations; transmitting, to the UE, an indication of at least one of the one or more SSB transmission configurations; wherein the indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations; wherein the indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations.

15. The method of claim 14, wherein the first set of one or more parameters provides an incomplete description of the at least one of the one or more SSB transmission configurations; wherein the second set of one or more parameters completes a full parameter set for the at least one of the one or more SSB transmission configurations.

16. The method of claim 14 or 15, wherein one or more parameters in the second set of one or more parameters override one or more parameters included in the first set of one or more parameters.

17. The method of any of claims 14 to 16, wherein the indication is an activation indication for the at least one of the one or more SSB transmission configurations.

18. The method of any of claims 14 to 17, wherein the one or more SSB transmission configurations comprise one or more on-demand SSB transmission configurations.

19. The method of any of claims 14 to 18 wherein the indication comprises a Downlink Control Information, DCI.

20. The method of any of claims 14 to 18, wherein the indication comprises a Medium Access Control - Control Element, MAC CE.

21. The method of any of claims 14 to 20, further comprising receiving preference information from the UE, wherein the preference information indicates a preferred parameter value preferred by the UE for one or more parameters in the first set or the second set of one or more parameters.

22. The method of any of claims 14 to 21, further comprising receiving a request from the UE for at least one SSB transmission.

23. The method of claim 22, wherein the request indicates a preferred parameter value for one or more parameters in the first set or the second set of one or more parameters.

24. A network node, comprising: processing circuitry; and at least one memory storing instructions executable by the processing circuitry to perform operations to: transmit, to a User Equipment, UE, a configuration message comprising a first set of one or more parameters for one or more SSB transmission configurations; transmit, to the UE, an indication of at least one of the one or more SSB transmission configurations; wherein the indication includes an index to the first set of one or more parameters for the at least one of the one or more SSB transmission configurations; wherein the indication wherein the indication further comprises a second set of one or more parameters for the at least one of the one or more SSB transmission configurations.

25. The network node of claim 24, wherein the at least one memory stores further instruction executable by the processing circuitry to perform further operations comprising operations of any one of claims 14 to 23.