BR112020016679B1 - WIRELESS DEVICES AND RELATED METHODS - Google Patents

Abstract

In one aspect, a wireless device is configured to selectively operate on one of two or more previously configured bandwidth portions, BWPs, each BWP being a different subset of the bandwidth available for operation. uplink and/or downlink. The wireless device receives (802) an indication to switch from using a first BWP to a second BWP and, after switching to using the second BWP, applies (804) a predetermined default configuration, which corresponds to the second BWP, to one or more physical layer parameters and/or procedures.

Description

FIELD OF TECHNIQUE

[0001] The present invention relates generally to the field of wireless network communications and, more particularly, to wireless devices configured to operate selectively in one of two or more previously configured bandwidth chunks (BWPs). ), with each BWP being a different subset of bandwidth available for uplink and/or downlink operation.

BACKGROUND Bandwidth Shares (BWP)

[0002] With Bandwidth Adaptation (BA), the reception and transmission bandwidth of a user equipment (UE) does not need to be as large as the cell bandwidth and can be adjusted. You can order the width to change (for example, reduce during periods of low activity to save power), the location can move in the frequency domain (for example, to increase scaling flexibility), and you can order so that subcarrier spacing changes (for example, to allow for different services). A subset of a cell's total cell bandwidth is referred to as a Bandwidth Portion (BWP) and BA is achieved by configuring the UE with BWPs and telling the UE which among the configured BWPs is currently the active BWP.

[0003] Figure 1 shows an example of a bandwidth part scenario, in which 3 different BWPs are configured: BWP1 with a width of 40 MHz and subcarrier spacing of 15 kHz; BWP2 with a width of 10 MHz and subcarrier spacing of 15 kHz; and BWP3 with a width of 20 MHz and subcarrier spacing of 60 kHz.

[0004] To enable BA in the primary cell (PCell), the gNB configures the UE with uplink and downlink BWPs. To enable BA in secondary cells (SCells), when carrier aggregation (CA) is in use, the gNB configures the UE with at least downlink BWPs in the SCells. In other words, there may not be uplink BWPs in some cases. For PCell, the initial BWP is the BWP used for initial access. For SCells, the initial BWP is the BWP configured for the UE to first operate on SCell activation.

[0005] During frequency division duplexing (FDD) operation, the BWP for downlink and uplink can be switched independently of each other. During time division duplexing (TDD) operation, the BWP for downlink and uplink are switched simultaneously. Switching between configured BWPs occurs via downlink control information (DCI) or an inactivity timer (L1 signaling). When an inactivity timer is configured for a serving cell, the expiration of the inactivity timer associated with that cell switches the active BWP to the default. If a default BWP is not explicitly configured for a serving cell, the initial BWP takes over the role of the default BWP for that serving cell.

[0006] To enable reasonable UE battery consumption when BA is configured, only one BWP pair can be active at a time, all other BWPs with which the UE is configured being disabled. In disabled BWPs, the UE does not monitor the physical downlink control channel (PDCCH), transmits on the physical uplink control channel (PUCCH), physical random access channel (PRACH), and shared uplink channel (UL -SCH).

MAC Control Elements (MAC CE)

[0007] MAC control elements (MAC CE) are control commands within the MAC layer, exchanged between the UE and the network. These special MAC structures that carry the control information are implemented as a special bit string in the logical channel ID (LCID) field of a MAC Header (see 3GPP TS 38.321). There are multiple MAC CEs in downlink MAC and also multiple MAC CEs in uplink MAC.

[0008] The network can activate and deactivate the configured channel state information reference signal (CSI-RS) resources of a serving cell by sending the CSI-RS resources MAC controller element Activation/Deactivation.

[0009] For semi-persistent reporting on the physical uplink shared channel (PUSCH), a set of semi-persistent CSI report definitions are configured, per higher layers, and the CSI request field in a DCI command activates one of the reports of semi-persistent CSI.

[0010] For semi-persistent reporting in PUCCH, a set of semi-persistent CSI report definitions are configured, by higher layers, with the PUCCH resource used to transmit the CSI report. Semi-persistent reporting on PUCCH is activated by a MAC CE enable command, which selects one of the Semi-persistent CSI Report definitions for use by the UE on PUCCH.

[0011] When a UE with the ResourceConfigType upper layer parameter set to “semi-persistent” receives a MAC CE enable command for CSI-RS resources for channel measurement and CSI interference measurement (IM)/CSI resources -Non-zero power (NZP) RS for interference measurement associated with CSI resource definitions configured in slot n, the corresponding actions in 3GPP TS 38.321, and the UE assumptions (including quasi-co-location assumptions provided by a reference to a TCI-RS-SetConfig) in CSI-RS/CSI-IM transmission that correspond to the configured CSI-RS/CSI-IM resource settings shall be applied no later than the minimum requirement defined in 3GPP TS 38.133. When a UE receives a MAC CE disable command as described in 3GPP TS 38.321 for activated CSI-RS/CSI-IM features associated with CSI feature definitions configured in slot n, the corresponding actions in 3GPP TS 38.321 and UE assumption on cessation of CSI-RS/CSI-IM transmission that corresponds to disabled CSI-RS/CSI-IM features shall apply no later than the minimum requirement defined in 3GPP TS 38.133. The UE can assume that the CSI-RS resources for channel measurement and the CSI-IM/NZP CSI-RS resources for interference measurement are spatially nearly co-located. It is worth noting that a similar procedure can also be applied when configuring Polling Reference Signal (SRS) resources and Transmission Configuration Indication (TCI) States (i.e., for quasi-colocation of antenna ports).

[0012] In 5G NR, MAC CE commands are used for PDSCH and PUSCH related procedures. For example, a UE can be configured with higher layer signaling for up to M TCI states to decode PDSCH according to a detected PDCCH, with DCI intended for the UE and the given serving cell, where M depends on the UE capacity. How these TCI states are configured and activated is accomplished through a MAC CE command (i.e. in 3GPP TS 38.321) used to map up to 8 TCI states to the field TCI state code points. DCI.

[0013] Additionally, semi-persistent CSI reporting can be enabled/disabled via MAC CE commands. In fact, a CSI report trigger state can be associated with any candidate downlink BWP. However, a UE is not expected to be triggered with a CSI report for a non-active downlink BWP. Additionally, the UE can be configured with one or more SRSs linked to each BWP.

[0014] A UE can be configured for operation using only a portion of the total cell bandwidth, with this being referred to as a BWP. The maximum number of supported BWPs is currently 4. Different PDSCH and PUSCH procedures can be configured for each of the BWPs. However, in the case where the UE is configured to switch from one BWP to another (this is done via L1 signaling), there may be potential alignment issues regarding the configured physical layer procedures and associated parameters, as these are enabled/disabled using MAC CE commands.

[0015] Currently, in NR standardization, an open question regarding the use of BWPs is the relationship between BWP switching and the operation related to various physical layer procedures/parameters, for example, regarding CSI-RS and SRS, which are controlled via MAC CE commands. Until then, these MAC CE-controlled parameters and procedures are associated with a single BWP. In case the UE is instructed to switch to the currently active BWP, the previously activated SRS configuration or CSI-RS report may be invalid for the new “active” BWP. Additionally, the UE is not allowed to send PHY reports to a BWP that is no longer active - so it may also happen that no PHY reports are received by the network once the UE switches to a new BWP. Therefore, the UE may provide invalid reporting to the network as a result of misalignment between the currently “active” BWP and the physical layer procedures configured for the previously “active” BWP. This issue may apply to any or all of the physical procedures/parameters that can be toggled by MAC CEs.

SUMMARY

[0016] Misalignment of the active BWP and associated physical layer configuration results in suboptimal performance and possible erroneous behavior. Embodiments of the present invention avoid such misalignment between the active BWP and related physical layer procedures that may arise due to BWP switching. This keeps NR performance at the expected level.

[0017] According to currently disclosed techniques, when the UE is about to switch from one active BWP to another (via L1 signaling from the network), three possible actions can be performed if no MAC CE change is intended . Upon receipt of a BWP switching indication, the UE reverts to a default BWP configuration for physical layer procedures and associated parameters for that BWP, as indicated via a Radio Resource Control (RRC) message previously (e.g. example, in RRC reconfiguration/RRC resumption/RRC connection preparation), until it receives a new MAC CE from the network. Upon receipt of a BWP switching indication, the UE interrupts previously configured physical layer procedures via MAC CE (e.g., regarding CSI-RS, SRS) and waits for a new MAC CE to be sent over the network. In a variation of this approach, the UE starts a timer upon receipt of the BWP switching indication and, if no MAC CE is received before the timer expires, the UE reverts to the default BWP configuration for switching parameters and/or procedures. PHY layer for that BWP, until it receives a new MAC CE from the network. Upon receipt of a BWP switching indication, the UE reverts to the physical procedure configuration that it applied when the UE last used the newly active BWP.

[0018] According to some embodiments, a method, in a wireless device (e.g., UE) configured to selectively operate on one of two or more previously configured BWPs, wherein each BWP is a different subset of a bandwidth available for uplink and/or downlink operation. The method includes receiving an indication to switch from use of a first BWP to a second BWP and, after switching to use of the second BWP, applying a predetermined default configuration corresponding to the second BWP, the one or more parameters and/or procedures physical layer.

[0019] According to some embodiments, a method, in a wireless device configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or downlink. The method includes receiving an indication to switch use of a first BWP to a second BWP and determining whether physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during prior use of the second BWP. The method includes applying previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP.

[0020] According to some embodiments, a method, in a wireless device configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or downlink. The method includes receiving an indication to switch from use of a first BWP to a second BWP and, upon switching to use of the second BWP, stopping the operation of one or more physical layer procedures until receipt of a command that activates and/or which configures the one or more interrupted physical layer procedures for the second BWP.

[0021] According to some embodiments, a method, in a wireless device configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or downlink. The method includes receiving an indication to switch from use of a first BWP to a second BWP and, upon switching to use of the second BWP, stopping the operation of one or more physical layer procedures and waiting a predetermined time for receipt of a command. which activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The method also includes, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP within the predetermined time, switching to the use of a standard BWP from among the two or more Preconfigured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, one or more physical layer parameters and/or procedures.

[0022] According to some embodiments, a method in a network node serving a wireless device configured to selectively operate on one of two or more previously configured BWPs, wherein each BWP is a different subset of an available bandwidth for uplink and/or downlink operation, includes sending to the wireless device an indication to switch from use of a first BWP to a second BWP and counting a number of physical layer reports expected from the wireless device during use of the second BWP but not received. The method includes, responsive to the number reaching a predetermined threshold, sending one or more MAC CEs to configure physical layer reporting for the second BWP.

[0023] According to some embodiments, a wireless device configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink and/or uplink operation. downlink, includes a set of transceiver circuits configured to communicate with a network node of a wireless communication network and a set of processing circuits operatively associated with the set of transceiver circuits. The processing circuitry is configured to receive an indication to switch from use of a first BWP to a second BWP and, after switching to use of the second BWP, apply a predetermined default configuration corresponding to the second BWP at one or two more physical layer parameters and/or procedures.

[0024] According to some embodiments, a wireless device configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink and/or uplink operation. downlink, includes a set of transceiver circuits configured to communicate with a network node of a wireless communication network and a set of processing circuits operatively associated with the set of transceiver circuits. The processing circuitry is configured to receive an indication to switch use of a first BWP to a second BWP and determine whether physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during prior use of the second BWP. The processing circuitry is also configured to apply previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs. during previous use of the second BWP.

[0025] According to some embodiments, a wireless device configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink and/or uplink operation. downlink, includes a set of transceiver circuits configured to communicate with a network node of a wireless communication network and a set of processing circuits operatively associated with the set of transceiver circuits. The processing circuitry is configured to receive an indication to switch from use of a first BWP to a second BWP and, upon switching to use of the second BWP, cease operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP.

[0026] According to some embodiments, a wireless device configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink and/or uplink operation. downlink, includes a set of transceiver circuits configured to communicate with a network node of a wireless communication network and a set of processing circuits operatively associated with the set of transceiver circuits. The processing circuitry is configured to receive an indication to switch from use of a first BWP to a second BWP and, upon switching to use of the second BWP, stop the operation of one or more physical layer procedures and wait a period of time. predetermined for receiving a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The processing circuitry is also configured to, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch to the use of a BWP. pattern among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures.

[0027] A network node configured to serve a wireless device configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of bandwidth available for uplink operation and/or downlink, includes a set of transceiver circuits configured to communicate with the wireless device and a set of processing circuits operatively associated with the set of transceiver circuits. The processing circuitry is configured to send to the wireless device an indication to switch from use of a first BWP to a second BWP and to count a number of physical layer reports expected from the wireless device during use of the second BWP but not received. The set of processing circuits is configured, responsive to the number reaching a predetermined threshold, to send one or more MAC CEs to configure physical layer reporting for the second BWP.

[0028] Additional aspects of the present invention are directed to an apparatus, computer program products or computer-readable storage media corresponding to the methods summarized above and functional implementations of the apparatus and wireless device summarized above.

[0029] Of course, the present invention is not limited to the above attributes and advantages. Those skilled in the art will recognize additional attributes and advantages upon reading the following detailed description, and upon examination of the accompanying drawings.

BRIEF DESCRIPTION OF FIGURES

[0030] Figure 1 illustrates an example of a BWP scenario.

[0031] Figure 2 illustrates an exemplary signal flow, in which, upon BWP switching, the UE reverts to standard PHY layer configuration for the BWP, according to some embodiments.

[0032] Figure 3 illustrates an exemplary signal flow, in which, upon BWP switching, the UE interrupts PHY layer procedures and waits for a new MAC CE, according to some embodiments.

[0033] Figure 4 illustrates an exemplary signal flow, wherein, upon BWP switching, the UE interrupts the PHY layer procedure and uses the expiration of a timer to revert to the default PHY layer configuration for the BWP, from according to some modalities.

[0034] Figure 5 illustrates a block diagram of a network node, according to some embodiments.

[0035] Figure 6 illustrates a flowchart of a method at the network node, according to some embodiments.

[0036] Figure 7 illustrates a block diagram of a wireless device, according to some embodiments.

[0037] Figure 8 illustrates a flow diagram of a method in the wireless device, according to some embodiments.

[0038] Figure 9 illustrates a flow diagram of another method in the wireless device, according to some embodiments.

[0039] Figure 10 illustrates a flow diagram of another method in the wireless device, according to some embodiments.

[0040] Figure 11 illustrates a flow diagram of another method in the wireless device, according to some embodiments.

[0041] Figure 12 schematically illustrates a telecommunications network connected, via an intermediate network, to a host computer, according to some embodiments.

[0042] Figure 13 is a generalized block diagram of a host computer that communicates, via a base station, with user equipment via a partially wireless connection, according to some embodiments.

[0043] Figures 14 to 17 are flowcharts illustrating exemplary methods deployed in a communication system that includes a host computer, a base station and user equipment.

[0044] Figure 18 is a block diagram illustrating a functional deployment of a network node, according to some embodiments.

[0045] Figures 19 to 22 are block diagrams illustrating functional implementations of a wireless device, according to some embodiments.

DETAILED DESCRIPTION OF MODALITIES

[0046] Exemplary embodiments of the present invention will be described more fully hereinafter with reference to the attached drawings, in which examples of embodiments of the inventive concepts are shown. The inventive concepts, however, can be embodied in many different ways and should not be construed as limited to the embodiments set forth in the present invention. Rather, these embodiments are provided so that this invention is thorough and complete, and will fully convey the scope of the present inventive concepts to those skilled in the art. It should also be noted that these modalities are not mutually exclusive. It may be tacitly assumed that components of one modality are present/used in another modality.

[0047] The standardization of BWP operation, in the Third Generation Partnership Project (3GPP), is underway. As part of this specification, information elements (IEs) such as a ServingCellConfigCommon IE can be used to configure cell-specific parameters of a UE serving cell, including, for example, an initial downlink BWP. The IE contains parameters that a UE would typically acquire from Standard Signal Block (SSB), Master Information Block (MIB) or System Information Blocks (SIBs) when accessing the cell from IDLE. With this IE, the network provides this information in dedicated signaling when configuring a UE with SCells or with an additional cell group (SCG). It also provides the same for Special Cells (SpCells) (Master Cell Group and Secondary Cell Group) through reconfiguration with synchronization. ServingCellConfig IE can be used to configure (add or modify) the UE with a serving cell, which can be the SpCell or a SCell of an MCG or SCG. This may involve specifying initial downlink BWPs (common and dedicated), initial uplink BWPs (common and dedicated), a first active downlink BWP, a duration or timer after which the UE falls back to a default BWP, and a standard downlink BWP.

[0048] The BandwidthPart-Config IE information element involves configuring a BWP. This IE may include an identifier, frequency domain location, and bandwidth. Location is given as a distance (in number of physical resource blocks) relative to the lowest usable subcarrier with the same subcarrier spacing as the BWP. IE can specify uplink and downlink BWPs, whether common or dedicated, for physical channels. Conditions can also be specified.

[0049] MAC CE enabled/disabled PHY layer procedures include semi-persistent CSI-RS reports, for which the procedures and/or parameters may vary on a per-BWP basis. Additionally, the UE can be configured via MAC CE with one or more SRS capabilities per BWP. Another procedure with which the UE can be configured in a per-BWP manner is the TCI state (one or more) in order to decode PDSCH according to a detected PDCCH. However, as described above, there may be misalignment between these procedures and a new active BWP when BWP switching occurs. Additionally, the UE is not permitted to send PHY reports to a BWP that is no longer active. Therefore, it may also happen that no PHY report is received by the network once the UE switches to a new BWP. The techniques disclosed in the present invention address UE behaviors and configurations that can resolve this issue.

[0050] In one of the disclosed embodiments, a UE is configured by the network with standard PHY layer procedures (e.g., CSI-RS, SRS reports), on a dedicated basis, for each possible BWP, or on a common basis, for all BWPs.

[0051] In some embodiments, the default configuration may be signaled via RRC. RRC messages that may contain or indicate the default configuration may be RRC reset, RRC resume, or RRC connection preparation messages.

[0052] In some of these embodiments, the default PHY layer configuration can be immediately applied and used when the active BWP is modified, for example, from BWPa to BWPb. In this way, a possible misalignment of the new active BWP and the previously configured PHY layer procedures and associated parameters, which are configured by MAC CE, can be avoided.

[0053] In another approach in accordance with currently disclosed techniques, the UE may not have any default PHY layer configuration for BWPs. According to this approach, the UE can interrupt previously configured PHY layer procedures (i.e., one or more of those that are enabled/disabled and/or configured by MAC CE) upon BWP switching, and wait for a new PHY command. MAC CE for new active BWP.

[0054] In yet another approach, the UE starts a timer (e.g., MacCeBWPTimer) upon BWP switching, and when the maximum value is reached and no new MAC CE commands have been received by the UE, the UE reverts to the default PHY layer configuration for the newly active BWP. Alternatively, the UE may revert, in some embodiments, to the default BWP, with its associated default PHY layer configuration, upon expiration of the timer without receipt of a MAC CE command that configures the PHY layer parameters or procedures. Alternatively, the UE may apply Radio Link Failure (RLF) and/or reset procedures upon timer expiration (e.g., if there is no default configuration for the newly active BWP).

[0055] In a network-based approach that can be used with several of the above UE-based techniques, after the network sends a DCI command to the UE to switch from a first BWP, e.g., “BWPa” to a second BWP, for example, “BWPb” or when the network sends a PHY layer configuration to BWPb within a MAC CE, the network may start a counter in which unreceived PHY layer reports are counted. In the present invention, PHY layer reports may involve CSI-RS, SRS, TCI states, or other L1 information. Once the counter reaches the maximum value, the network then resends the MAC CE to configure the PHY layer procedures for the new BWP.

[0056] In some embodiments, whether or not there is a default PHY layer configuration for the new BWP, if the UE has previously used the same active BWP, it may revert to the previously configured PHY layer procedures and associated parameters (e.g. MAC CE) for the same BWP. In other words, the previous MAC CE indication/configuration for the same BWP can be reused as a default PHY layer configuration when it is configured for the next time. Otherwise, once a PHY layer configuration for a given BWP is made, it may be considered the default configuration for that BWP until it is changed, in some embodiments.

[0057] In some embodiments according to this prior approach, this reversion to a prior configuration for a given BWP may only be valid temporarily, for example, if the UE has not undergone a transition from active to idle (or inactive) state and a handover to another cell (or BS), or any of them. In some such embodiments, the UE may revert to a configured default outside of this validity period, if one is available.

[0058] Figure 2 illustrates a signaling flow in which, upon BWP switching, the UE reverts to the default PHY layer configuration for the BWP. According to the exemplary procedure shown in Figure 2, once a set of PHY layer procedures/parameters is configured (step 1) and then one of them is activated via MAC CE (step 2), the UE starts sending PHY layer report to the network. PHY layer report types can be configured to report CSI-RS, SRS, TCI states, or other L1 information. Additionally, this entire report can be configured for a single BWP.

[0059] In the illustrated example, once the network sends a DCI command to the UE (L1 signaling) to change the “active” BWP, as shown in step 4, the UE, to avoid misalignment due to the PHY layer report linked to the old BWP, autonomously reverts to the default configuration for the BWP, as shown in steps 5 and 6. Reverting to the default configuration for the BWP implies that PHY layer procedures/parameters related to that BWP are also used. In the illustrated procedure, the network explicitly and subsequently activates a set of PHY layer procedures via MAC CE as shown in step 7, after which the subsequent PHY layer report in step 8 is performed. according to the newly activated procedures.

[0060] Figure 3 illustrates a signaling flow in which, upon BWP switching, the UE interrupts PHY layer procedures and waits for a new MAC CE. According to the exemplary procedure shown in Figure 3, once a set of PHY layer procedures/parameters is configured (step 1) and then one of them is activated via MAC CE (step 2), the UE starts sending PHY layer report to the network. PHY layer reporting may involve CSI-RS, SRS, TCI states, or other L1 information. Additionally, all of these reports can be configured for a single BWP.

[0061] In the illustrated example, once the network sends a DCI command to the UE (L1 signaling) to change the “active” BWP, the UE stops all PHY layer procedures configured for the old BWP, as shown in step 4. The network, after sending the DCI command to the UE to switch from BWPa to a BWPb, also sends a MAC CE to explicitly configure the PHY layer procedures for the new BWP.

[0062] In some embodiments, as discussed above, after the network sends “the DCI command to the UE to switch from BWPa to a BWPb” as shown in step 4, or when the network sends “the PHY layer configuration to BWPb within a MAC CE” as shown in step 6, the network can start a counter in which unreceived PHY layer reports are tallied. In the present invention, PHY layer reports may involve CSI-RS, SRS, TCI states, or other L1 information. Once the counter reaches the maximum value, the network can resend the MAC CE to configure the PHY layer procedures for the new BWP.

[0063] Figure 4 illustrates a signaling flow in which, upon BWP switching, the UE interrupts the PHY layer procedure and starts a timer. When it expires, the UE reverts to the default PHY layer configuration for the BWP. According to the exemplary procedure shown in Figure 4, once a set of PHY layer procedures/parameters is configured (step 1) and then one of them is activated via MAC CE (step 2), the UE starts sending PHY layer report to the network. PHY layer reporting may involve CSI-RS, SRS, TCI states, or other L1 information. Additionally, this entire report can be configured for a single BWP.

[0064] In the illustrated example, once the network sends a DCI command to the UE (L1 signaling) to change the “active” BWP, the UE stops all PHY layer procedures configured for the old BWP, as shown in step 5. In some embodiments, UE starts a wait timer, as shown in step 6, during which a MAC CE command with the new PHY layer procedures/parameters can be received by the network. For this timer, BWP-InactivityTimer can be used or a new timer (e.g. MacCeBWPTimer) can be configured.

[0065] In these embodiments, if the UE receives a MAC CE command with the PHY layer procedure for the new active BWP, the new report based on this configuration is applied. Alternatively, if no MAC CE is received and the hold timer expires, the UE autonomously reverts to the default configuration for the BWP, for example, as shown in step 7 of Figure 4. Reverting to the default configuration for the BWP implies that PHY layer procedures related to that BWP are also used. Alternatively (if there is no default configuration), a reset procedure can be triggered.

[0066] Figure 5 shows a network node 30, such as a base station, that can be configured to perform one or more of these disclosed techniques. The base station can be an evolved Node B (eNodeB), Node B or gNB. These operations can be performed by other types of network nodes or relay nodes. In the non-limiting embodiments described below, network node 30 will be described as being configured to operate as a cellular network access node on an LTE network or NR network.

[0067] Those skilled in the art will readily appreciate how each type of node can be adapted to perform one or more of the signaling methods and processes described in the present invention, for example, by modifying and/or adding appropriate program instructions. for execution by processing circuits 32.

[0068] Network node 30 facilitates communication between wireless terminals, other network access nodes and/or the core network. Network node 30 may include communication interface circuitry 38 that includes circuitry for communicating with other nodes in the core network, radio nodes and/or other types of nodes in the network for the purpose of providing data and/or or cellular communication services. Network node 30 communicates with wireless devices using antennas 34 and transceiver circuitry 36. Transceiver circuitry 36 may include transmitter circuitry, receiver circuitry, and associated control circuitry that are collectively configured to transmit and receiving signals in accordance with a radio access technology, for the purpose of providing cellular communication services.

[0069] Network node 30 also includes one or more processing circuits 32 that are operatively associated with transceiver circuitry 36 and, in some cases, communication interface circuitry 38. The Processing circuitry 32 comprises one or more digital processors 42, e.g., one or more microprocessors, microcontrollers, Digital Signal Processors (DSPs), Field Programmable Gate Arrays (FPGAs), Complex Programmable Logic Devices (CPLDs), Integrated Circuits Application Specific Applications (ASICs) or any combination thereof. More generally, the processing circuitry 32 may comprise a fixed circuitry or programmable circuitry that is configured specifically via execution of program instructions that implement the functionality taught in the present invention, or may comprise some combination of processing circuitry. fixed and programmed circuits. The processor 42 may be multi-core, that is, have two or more processor cores used for improved performance, reduced power consumption, and more efficient simultaneous processing of multiple tasks.

[0070] Processing circuitry 32 also includes a memory 44. Memory 44, in some embodiments, stores one or more computer programs 46 and, optionally, configuration data 48. Memory 44 provides non-transitory storage for computer program 46 and may comprise one or more types of computer-readable media, such as disk storage, solid-state memory storage, or any combination thereof. In the present invention, "non-transient" means permanent, semi-permanent or at least temporarily persistent storage and encompasses both long-term storage in non-volatile memory and storage in working memory, for example, for program execution. By way of non-limiting example, memory 44 comprises any one or more of SRAM, DRAM, EEPROM and FLASH memory, which may be in the processing circuitry 32 and/or separate from the processing circuitry 32. The memory 44 may also store any configuration data 48 used by network access node 30. Processing circuitry 32 may be configured, for example, through the use of appropriate program code stored in memory 44, to perform one or more of the signaling methods and/or processes detailed hereinafter.

[0071] The processing circuitry 32 of the network node 30 is configured, in accordance with some embodiments, to serve a wireless device configured to operate selectively on one of two or more previously configured BWPs, where each BWP is a different subset of a bandwidth available for uplink and/or downlink operation. The processing circuitry 32 of the network node 30 is also configured to send, to the wireless device, an indication to switch the use of a first BWP to a second BWP and count a number of expected physical layer reports from the wireless device. wire during use of the second BWP but not received. The processing circuitry 32 is configured, responsive to the number reaching a predetermined threshold, to send one or more MAC CEs to configure physical layer reporting for the second BWP.

[0072] The processing circuitry 32 of the network node 30 may also be configured to perform a corresponding method 600, as shown in Figure 6. The method 600 includes sending, to the wireless device, an indication to switch the use of a first BWP to a second BWP (block 602) and counting a number of physical layer reports expected from the wireless device during use of the second BWP but not received (block 604). Method 600 also includes, responsive to the number reaching a predetermined threshold, sending one or more MAC CEs to configure physical layer reporting for the second BWP (block 606).

[0073] Method 600 may further include sending one or more first MAC CEs to configure physical layer reporting for the second BWP, subsequent to sending the indication to switch use of the first BWP to the second BWP, wherein the Said count begins upon sending the one or more first MAC CEs.

[0074] Figure 7 illustrates a diagram of a wireless device, shown as wireless device 50, according to some embodiments. The wireless device 50 can be considered to represent any wireless terminals that can operate in a network, such as a UE in a cellular network. Other examples may include a communication device, target device, device-to-device (D2D) UE, machine-type UE or UE capable of machine-to-machine (M2M) communication, a UE-equipped sensor, PDA (personal digital assistant) , Tablet, mobile terminal, smartphone, laptop embedded equipment (LEE), laptop mounted equipment (LME), USB dongles, Customer Premises Equipment (CPE), etc.

[0075] The wireless device 50 is configured to communicate with a radio network node or base station in a wide area cellular network via antennas 54 and transceiver circuitry 56. The transceiver circuitry 56 may include transmitter circuitry , receiving circuits and associated control circuits that are collectively configured to transmit and receive signals in accordance with a radio access technology, for the purpose of using cellular communication services. These radio access technologies are NR and LTE for the purpose of this discussion.

[0076] Wireless device 50 also includes one or more processing circuits 52 that are operatively associated with radio transceiver circuitry 56. Processing circuitry 52 comprises one or more digital processing circuits, for example, one or more microprocessors, microcontrollers, DSPs, FPGAs, CPLDs, ASICs, or any combination thereof. More generally, the processing circuitry 52 may comprise a fixed circuitry or programmable circuitry that is specially adapted via execution of program instructions that implement the functionality taught in the present invention, or may comprise some combination of processing circuitry. fixed and programmed circuits. The processing circuitry 52 may have multiple cores.

[0077] Processing circuitry 52 also includes a memory 64. Memory 64, in some embodiments, stores one or more computer programs 66 and, optionally, configuration data 68. Memory 64 provides non-transitory storage for computer program 66 and may comprise one or more types of computer-readable media, such as disk storage, solid-state memory storage, or any combination thereof. By way of non-limiting example, memory 64 comprises any one or more of SRAM, DRAM, EEPROM and FLASH memory, which may be in the processing circuitry 52 and/or separate from the processing circuitry 52. The memory 64 may also store any configuration data 68 used by the wireless device 50. The processing circuitry 52 may be configured, for example, through the use of appropriate program code stored in memory 64, to perform one or more of the following methods. and/or signaling processes detailed hereinafter.

[0078] The processing circuitry 52 of the wireless device 50 is configured, in accordance with some embodiments, to operate selectively on one of two or more previously configured BWPs, with each BWP being a different subset of a bandwidth available for uplink and/or downlink operation. Processing circuitry 52 is configured to receive an indication to switch from use of a first BWP to a second BWP and, after switching to use of the second BWP, apply a predetermined default configuration corresponding to the second BWP at one or more physical layer parameters and/or procedures.

[0079] In some embodiments, the processing circuitry 52 is configured to receive an indication to switch the use of a first BWP to a second BWP and determine whether physical layer parameters and/or procedures for the second BWP have been previously configured. by MAC CEs during previous use of the second BWP. The processing circuitry 52 is also configured to apply previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have been previously configured by CEs of MAC during previous use of the second BWP.

[0080] In other embodiments, the processing circuitry 52 is configured to receive an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupt the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP.

[0081] In some embodiments, the processing circuitry 52 is configured to receive an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, stop the operation of one or more physical layer procedures and wait a predetermined time to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The processing circuitry 52 is configured to, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch to the use of a BWP pattern among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures.

[0082] In accordance with some embodiments, the processing circuitry 52 is configured to perform corresponding methods, such as methods 800 to 1100 for the wireless device 50 shown in Figures 8 to 11. For example, method 800 includes receive an indication to switch the use of a first BWP to a second BWP (block 802) and, after switching to use the second BWP, apply a predetermined default configuration, which corresponds to the second BWP, the one or more parameters and/or physical layer procedures (block 804).

[0083] The predetermined default configuration may be one of a plurality of predetermined default configurations, each of the predetermined default configurations corresponds uniquely to a respective BWP among the previously configured BWPs. The default default configuration may be a common default configuration that corresponds to two or more of the previously configured BWPs, including the second BWP. The default default configuration can be applied immediately after switching to use the second BWP.

[0084] In some embodiments, method 800 further includes, upon switching to use the second BWP, stopping the operation of one or more physical layer procedures. Method 800 also includes waiting a predetermined time for receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. Application of the predetermined default configuration may be performed upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP within the predetermined time.

[0085] Method 800 may also include, upon switching to use of the second BWP, determining whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP. Application of the predetermined default configuration may be accomplished by determining that physical layer parameters and/or procedures for the second BWP have not been previously configured by MAC CEs during prior use of the second BWP.

[0086] Method 800 may further include, upon switching to use of the second BWP, determining whether physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during prior use of the second BWP and within a predetermined interval before said switching. Application of the predetermined default configuration may be performed by determining that physical layer parameters and/or procedures for the second BWP have not been previously configured by MAC CEs during prior use of the second BWP and within the predetermined range.

[0087] Method 800 may include, upon switching to use of the second BWP, determining whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP that occurred without a change in a state from active to idle or a handover. Application of the predetermined default configuration may be accomplished by determining that physical layer parameters and/or procedures for the second BWP were not previously configured by MAC CEs during prior use of the second BWP that occurred without a change in state from active to idle. or a handover.

[0088] Method 800 may include, subsequent to applying the predetermined default configuration, receiving a command that activates and/or configures one or more physical layer procedures for the second BWP, and performing the one or more physical layer procedures physical according to the command received.

[0089] According to some embodiments, method 900 includes receiving an indication to switch the use of a first BWP to a second BWP (block 902) and determining whether physical layer parameters and/or procedures for the second BWP have been previously configured by CEs controlling access to the MAC medium during previous use of the second BWP (block 904). Method 900 includes applying previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP. (block 906).

[0090] The application of previously configured physical layer parameters and/or procedures for the second BWP may be further conditioned upon determining that these previously configured physical layer parameters and/or procedures for the second BWP have been configured within of a predetermined time interval before switching from the first BWP to the second BWP.

[0091] The application of previously configured physical layer parameters and/or procedures for the second BWP may be further conditioned by determining that no change from the active state to the idle state and/or no handover has occurred since the previously configured physical layer parameters and/or procedures for the second BWP have been configured.

[0092] According to some embodiments, the method 1000 may include receiving an indication to switch the use of a first BWP to a second BWP (block 1002) and, upon switching to the use of the second BWP, stopping the operation of one or further physical layer procedures until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP (block 1004).

[0093] According to some embodiments, method 1100 includes receiving an indication to switch from using a first BWP to a second BWP (block 1102) and, upon switching to using the second BWP, stopping the operation of a or more physical layer procedures and wait a predetermined time to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP (block 1104). Method 1100 also includes, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP within the predetermined time, switching to the use of a standard BWP of the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures (block 1106).

[0094] Physical layer parameters and/or procedures may include CSI report, interference measurement report, and/or SRS configuration parameters.

[0095] Figure 12, according to some embodiments, illustrates a communication system that includes a telecommunications network 1210, such as a 3GPP-type cellular network, which comprises an access network 1211, such as a via access network. radio and a core network 1214. The access network 1211 comprises a plurality of base stations 1212a, 1212b, 1212c, such as NBs, eNBs, gNBs or other types of wireless access points, each defining a corresponding coverage area 1213a, 1213b, 1213c. Each base station 1212a, 1212b, 1212c is connectable to the core network 1214 via a wired or wireless connection 1215. A first user equipment (UE) 1291, located in the coverage area 1213c, is configured to connect, so wirelessly, or be radiolocated by, the corresponding base station 1212c. A second UE 1292, in coverage area 1213a, is wirelessly connectable to the corresponding base station 1212a. Although a plurality of UEs 1291, 1292 are illustrated in this example, the disclosed embodiments are equally applicable to a situation in which a single UE is in the coverage area or in which a single UE is connecting to the corresponding base station 1212.

[0096] The telecommunications network 1210 is itself connected to a host computer 1230, which may be incorporated into the hardware and/or software of a standalone server, a cloud-deployed server, a distributed server, or as processing resources in a server farm. The host computer 1230 may be under the ownership or control of a service provider, or may be operated by or on behalf of the service provider. The connections 1221, 1222 between the telecommunications network 1210 and the host computer 1230 may extend directly from the core network 1214 to the host computer 1230 or may go via an optional intermediate network 1220. The intermediate network 1220 may be one of or a combination from more than one of a public, private or hosted network; the intermediate network 1220, if any, may be a backbone network or the Internet; in particular, the intermediate network 1220 may comprise two or more subnets (not shown).

[0097] The communication system of Figure 12, as a whole, enables connectivity between one of the connected UEs 1291, 1292 and the host computer 1230. The connectivity can be described as an over the top (OTT) connection 1250. The computer host 1230 and connected UEs 1291, 1292 are configured to communicate data and/or signaling via OTT connection 1250, using the access network 1211, the core network 1214, any intermediate network 1220 and possible additional infrastructure (not shown) such as intermediaries. The OTT connection 1250 may be transparent in the sense that the participating communication devices through which the OTT connection 1250 passes are not aware of uplink and downlink communications routing. For example, a base station 1212 may not be or need not be informed about the past routing of an incoming downlink communication with data originating from a host computer 1230 to be forwarded (e.g., handovered). to a connected UE 1291. Similarly, the base station 1212 does not need to be aware of the future routing of an outgoing uplink communication originating from the UE 1291 to the host computer 1230.

[0098] Exemplary deployments, in accordance with an embodiment of the UE, base station and host computer, discussed in the preceding paragraphs, will be described, below, with reference to Figure 13. In a communication system 1300, a host computer 1310 comprises hardware 1315 that includes a communications interface 1316 configured to prepare and maintain a wired or wireless connection with an interface of a communications device other than the communications system 1300. The host computer 1310 further comprises the processing circuitry 1318 , which may have storage and/or processing capabilities. In particular, the processing circuitry 1318 may comprise one or more programmable processors, application-specific integrated circuits, field-programmable gate arrays, or combinations thereof (not shown) adapted to execute instructions. Host computer 1310 further comprises software 1311, which is stored on or accessible by host computer 1310 and executable by processing circuitry 1318. Software 1311 includes a host application 1312. Host application 1312 may be operable to provide a service to a remote user, such as a UE 1330 that connects via an OTT connection 1350 terminating at the UE 1330 and the host computer 1310. When providing the service to the remote user, the host application 1312 may provide user data that is transmitted using the OTT 1350 connection.

[0099] The communication system 1300 additionally includes a base station 1320 provided in a telecommunications system and comprising hardware 1325 that enables it to communicate with the host computer 1310 and the UE 1330. The hardware 1325 may include an interface communication interface 1326 for preparing and maintaining a wired or wireless connection with an interface of a communication device other than the communication system 1300, as well as a radio interface 1327 for preparing and maintaining at least one wireless connection 1370 with a UE 1330 located in a coverage area (not shown in Figure 13) served by the base station 1320. The communication interface 1326 may be configured to facilitate a connection 1360 with the host computer 1310. The connection 1360 may be direct or may pass through a core network (not shown in Figure 13) of the telecommunications system and/or through one or more intermediate networks outside the telecommunications system. In the embodiment shown, hardware 1325 of base station 1320 additionally includes processing circuitry 1328, which may comprise one or more programmable processors, application-specific integrated circuits, field-programmable gate arrays, or combinations thereof (not shown). adapted to execute instructions. The base station 1320 additionally has software 1321 stored internally or accessible via an external connection.

[0100] The communication system 1300 also includes the aforementioned UE 1330. Its hardware 1335 may include a radio interface 1337 configured to prepare and maintain a wireless connection 1370 with a base station serving a coverage area in which the UE 1330 is currently located. Hardware 1335 of UE 1330 further includes processing circuitry 1338, which may comprise one or more programmable processors, application-specific integrated circuits, field-programmable gate arrays, or combinations thereof (not shown) adapted to execute instructions. . The UE 1330 further comprises software 1331, which is stored in or accessible by the UE 1330 and executable by processing circuitry 1338. The software 1331 includes a client application 1332. The client application 1332 may be operable to provide a service to a human or non-human user via UE 1330, supported by the host computer 1310. On the host computer 1310, a running host application 1312 may communicate with the running client application 1332 via OTT connection 1350 that terminates at the UE 1330 and on the host computer 1310. When providing the service to the user, the client application 1332 may receive request data from the host application 1312 and provide user data in response to the request data. The OTT connection 1350 can transfer both request data and user data. The client application 1332 may interact with the user to generate user data that the user provides.

[0101] It is observed that the host computer 1310, the base station 1320 and the UE 1330, illustrated in Figure 13, may be identical to the host computer 1230, one of the base stations 1212a, 1212b, 1212c and one of the UEs 1291 , 1292 of Figure 12, respectively. That is, the inner workings of these entities may be as shown in Figure 13 and, independently, the surrounding network topology may be that of Figure 12.

[0102] In Figure 13, the OTT connection 1350 has been drawn in an abstract manner to illustrate communication between the host computer 1310 and the user equipment 1330 via base station 1320, without explicit reference to any intermediate devices and the precise routing of messages via these devices. The network infrastructure may determine routing, which may be configured to hide from the UE 1330 or the service provider operating the host computer 1310, or both. Although the OTT connection 1350 is active, the network infrastructure may additionally make decisions whereby it dynamically changes routing (e.g., based on consideration of load balancing or network reconfiguration).

[0103] The wireless connection 1370 between the UE 1330 and the base station 1320 is in accordance with the teachings of the embodiments described throughout this invention, as provided by us, such as the wireless device 50 and the network node 30 , in conjunction with corresponding methods 600 and 800 to 1100. Misalignment of the active BWP and associated physical layer configuration results in suboptimal performance and possible erroneous behavior. The various embodiments described in the present invention prevent misalignment and maintain NR performance at the expected level. This improves the data rate, capacity, latency and/or power consumption for the network and UE 1330 when using the OTT connection 1350 and thereby provides benefits such as reduced user wait time, more capacity, better response rate and better device battery time.

[0104] A measurement procedure may be provided for the purpose of monitoring data rate, latency, and other factors which the one or more embodiments improve. There may additionally be optional network functionality to reconfigure the OTT connection 1350 between the host computer 1310 and the UE 1330 in response to variations in measurement results. The measurement procedure and/or network functionality for reconfiguring the OTT connection 1350 may be implemented in the software 1311 of the host computer 1310 or in the software 1331 of the UE 1330, or both. In embodiments, the sensors (not shown) may be implemented in or in association with communication devices through which the OTT connection 1350 passes; The sensors may participate in the measurement procedure by providing values of the monitored quantities exemplified above or by providing values of other physical quantities from which the software 1311, 1331 may compute or estimate the monitored quantities. Reconfiguration of the OTT connection 1350 may include message format, retransmission settings, preferred routing, etc.; the reconfiguration need not affect the base station 1320, and the same may be unknown or imperceptible to the base station 1320. Such procedures and functionalities may be known and practiced in the art. In certain embodiments, measurements may involve proprietary UE signaling facilitating measurements of throughput, propagation times, latency, and the like from host computer 1310. Measurements may be implemented in which software 911, 1331 causes messages to be transmitted, in particular, empty or “dummy” messages, using the OTT 1350 connection while monitoring propagation times, errors, etc.

[0105] Figure 14 is a flowchart illustrating a method implemented in a communication system, in accordance with an embodiment. The communication system includes a host computer, a base station and a UE which may be those described with reference to Figures 12 and 13. For the sake of simplicity of the present invention, only drawing references to Figure 14 will be included in this section. In a first step 1410 of the method, the host computer provides user data. In an optional substep 1411 of the first step 1410, the host computer provides user data by running a host application. In a second step 1420, the host computer initiates a transmission that carries the user data to the UE. In an optional third step 1430, the base station transmits, to the UE, the user data that was carried in the transmission that the host computer initiated, in accordance with the teachings of the embodiments described throughout this invention. In an optional fourth step 1440, the UE executes a client application associated with the host application executed by the host computer.

[0106] Figure 15 is a flowchart illustrating a method implemented in a communication system, in accordance with an embodiment. The communication system includes a host computer, a base station and a UE which may be those described with reference to Figures 12 and 13. For the sake of simplicity of the present invention, only drawing references to Figure 15 will be included in this section. In a first step 1510 of the method, the host computer provides user data. In an optional substep (not shown), the host computer provides user data by running a host application. In a second step 1520, the host computer initiates a transmission that carries the user data to the UE. Transmission may pass via the base station, in accordance with the teachings of the embodiments described throughout this invention. In an optional third step 1530, the UE receives the user data carried in the transmission.

[0107] Figure 16 is a flowchart illustrating a method implemented in a communication system, in accordance with an embodiment. The communication system includes a host computer, a base station and a UE which may be those described with reference to Figures 12 and 13. For the sake of simplicity of the present invention, only drawing references to Figure 16 will be included in this section. In an optional first step 1610 of the method, the UE receives input data provided by the host computer. Additionally or alternatively, in an optional second step 1620, the UE provides user data. In an optional substep 1621 of the second step 1620, the UE provides user data by running a client application. In an additional optional substep 1611 of the first step 1610, the UE executes a client application that provides user data in reaction to received input data provided by the host computer. When providing user data, the executed client application may additionally consider user input received from the user. Regardless of the specific mode in which the user data was provided, the UE begins, in an optional third substep 1630, transmitting the user data to the host computer. In a fourth step 1640 of the method, the host computer receives user data transmitted from the UE in accordance with the teachings of the embodiments described throughout this invention.

[0108] Figure 17 is a flowchart illustrating a method implemented in a communication system, in accordance with an embodiment. The communication system includes a host computer, a base station and a UE which may be those described with reference to Figures 12 and 13. For the sake of simplicity of the present invention, only drawing references to Figure 17 will be included in this section. In an optional first step 1710 of the method, in accordance with the teachings of the embodiments described throughout this invention, the base station receives user data from the UE. In an optional second step 1720, the base station begins transmission of the received user data to the host computer. In a third step 1730, the host computer receives the user data carried in the transmission initiated by the base station.

[0109] Based on the communication system shown in Figures 12 and 13, additional embodiments will be described. According to some embodiments, a communication system that includes a host computer comprises a set of processing circuitry configured to provide user data and a communication interface configured to forward the user data to a cellular network for transmission to a UE configured to operate selectively in one of two or more previously configured BWPs, with each BWP being a different subset of bandwidth available for uplink and/or downlink operation. The cellular network comprises a base station configured to serve the UE and configured to send to the UE an indication to switch from use of a first BWP to a second BWP and count a number of physical layer reports expected from the UE during use of the second. BWP but not received. Responsive to the number reaching a predetermined threshold, the base station sends one or more MAC CEs to configure physical layer reporting for the second BWP. The communication system may include the base station and/or the UE configured to communicate with the base station. The processing circuitry of the host computer may be configured to execute a host application, thereby providing user data, and the UE may comprise a processing circuitry configured to execute a client application associated with the host application.

[0110] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than a bandwidth available for uplink and/or downlink operation, comprises, on the host computer, providing user data and, on the host computer, initiating a transmission that carries the user data to the UE via a cellular network comprising the base station, configured to serve the UE. The method, at the base station, comprises sending to the UE an indication to switch the use of a first BWP to a second BWP, counting a number of physical layer reports expected from the UE during use of the second BWP but not received, and responsively When the number reaches a predetermined threshold, send one or more control elements MAC CEs to configure physical layer reporting for the second BWP. The method may further comprise, at the base station, transmitting user data. User data may be provided on the host computer running a host application, the method further comprises, in the UE, running a client application associated with the host application.

[0111] According to some embodiments, a communication system that includes a host computer comprises a set of processing circuitry configured to provide user data and a communication interface configured to forward user data to a cellular network for transmission to a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of bandwidth available for uplink and/or downlink operation, wherein the UE comprises a radio interface and set of processing circuitry configured to receive an indication to switch from use of a first BWP to a second BWP and, after switching to use of the second BWP, apply a predetermined default configuration corresponding to the second BWP to the one or more parameters and/or physical layer procedures.

[0112] According to some embodiments, a communication system that includes a host computer comprises a set of processing circuitry configured to provide user data and a communication interface configured to forward user data to a cellular network for transmission to a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of bandwidth available for uplink and/or downlink operation, wherein the UE comprises a radio interface and set of processing circuitry configured to receive an indication to switch use of a first BWP to a second BWP, determine whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP and applying the previously configured physical layer parameters and/or procedures for the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP.

[0113] According to some embodiments, a communication system that includes a host computer comprises a set of processing circuitry configured to provide user data and a communication interface configured to forward user data to a cellular network for transmission to a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of bandwidth available for uplink and/or downlink operation, wherein the UE comprises a radio interface and set of processing circuitry configured to receive an indication to switch from use of a first BWP to a second BWP and, upon switching to use of the second BWP, interrupt the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP.

[0114] According to some embodiments, a communication system that includes a host computer comprises a set of processing circuitry configured to provide user data and a communication interface configured to forward user data to a cellular network for transmission to a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a different subset of bandwidth available for uplink and/or downlink operation, wherein the UE comprises a radio interface and set of processing circuitry configured to receive an indication to switch from use of a first BWP to a second BWP and, upon switching to use of the second BWP, stop the operation of one or more physical layer procedures and wait a predetermined time to receiving a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The processing circuitry is also configured to, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch to the use of a BWP. pattern among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures. The communication system may further include the UE, and the cellular network may further include a base station configured to communicate with the UE. The host computer processing circuitry may be configured to execute a host application, thereby providing user data, and the UE processing circuitry may be configured to execute a client application associated with the host application.

[0115] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset different from a bandwidth available for uplink and/or downlink operation. The method comprises, at the host computer, providing user data and, at the host computer, initiating a transmission that carries the user data to the UE via a cellular network comprising the base station. The method comprises, in the UE, receiving an indication to switch the use of a first BWP to a second BWP and, after switching to the use of the second BWP, applying a predetermined default configuration, which corresponds to the second BWP, to the one or more parameters and/or physical layer procedures.

[0116] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset different from a bandwidth available for uplink and/or downlink operation. The method comprises, at the host computer, providing user data and, at the host computer, initiating a transmission that carries the user data to the UE via a cellular network comprising the base station, wherein the method comprises, at the UE, receiving a indication for switching the use of a first BWP to a second BWP and determining whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during previous use of the second BWP. The method, in the UE, also comprises applying previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during use. of the second BWP.

[0117] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset different from a bandwidth available for uplink and/or downlink operation. The method comprises, at the host computer, providing user data and, at the host computer, initiating a transmission that carries the user data to the UE via a cellular network comprising the base station, wherein the method comprises, at the UE, receiving a indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupt the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more more physical layer procedures stopped for the second BWP.

[0118] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than a bandwidth available for uplink and/or downlink operation, wherein the method comprises, on the host computer, providing user data and, on the host computer, initiating a transmission that carries the user data to the UE via a cellular network comprising the base station, wherein the method comprises, at the UE, receiving an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, stopping the operation of a or more physical layer procedures and wait a predetermined time to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The method, in the UE, also comprises, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switching to the use of a standard BWP from among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures. The method, in the UE, may further comprise receiving user data from the base station.

[0119] According to some embodiments, a communication system that includes a host computer comprising a communication interface configured to receive user data originating from a transmission from a UE to a base station, the UE configured to operate selectively on one of two or more previously configured BWPs, with each BWP being a different subset of bandwidth available for uplink and/or downlink operation, and set of UE processing circuits configured to receive a indication to switch the use of a first BWP to a second BWP and, after switching to the use of the second BWP, apply a predetermined default configuration, which corresponds to the second BWP, the one or more physical layer parameters and/or procedures.

[0120] According to some embodiments, a communication system that includes a host computer comprising a communication interface configured to receive user data originating from a transmission from a UE to a base station, the UE configured to operate selectively on one of two or more previously configured BWPs, with each BWP being a different subset of bandwidth available for uplink and/or downlink operation, and set of UE processing circuits configured to receive a indication to switch the use of a first BWP to a second BWP, determine whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during previous use of the second BWP, and apply the parameters and/or procedures of physical layer previously configured for the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP.

[0121] According to some embodiments, a communication system that includes a host computer comprising a communication interface configured to receive user data originating from a transmission from a UE to a base station, the UE configured to operate selectively on one of two or more previously configured BWPs, with each BWP being a different subset of bandwidth available for uplink and/or downlink operation, and set of UE processing circuits configured to receive a indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupt the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more more physical layer procedures stopped for the second BWP.

[0122] According to some embodiments, a communication system that includes a host computer comprising a communication interface configured to receive user data originating from a transmission from a UE to a base station, the UE configured to operate selectively on one of two or more previously configured BWPs, with each BWP being a different subset of bandwidth available for uplink and/or downlink operation, and set of UE processing circuits configured to receive a indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupt the operation of one or more physical layer procedures and wait a predetermined time for receipt of a command that activates and/or which configures the one or more interrupted physical layer procedures for the second BWP. The UE processing circuitry is also configured to, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch to the use of a default BWP from among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, one or more physical layer parameters and/or procedures. The communication system may include the UE and/or the base station, wherein the base station comprises a radio interface configured to communicate with the UE and a communication interface configured to forward ported user data to the host computer. by a transmission from the UE to the base station. The host computer processing circuitry may be configured to run a host application, and the UE processing circuitry may be configured to run a client application associated with the host application, thereby providing user data. The host computer processing circuitry may be configured to run a host application, thereby providing request data, and the UE processing circuitry may be configured to run a client application associated with the host application, thereby providing , thereby, the user data in response to the request data.

[0123] According to some embodiments, a method deployed in a UE configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or or downlink, wherein the method comprises receiving an indication to switch the use of a first BWP to a second BWP and, after switching to the use of the second BWP, applying a predetermined default configuration, which corresponds to the second BWP, at a or more physical layer parameters and/or procedures.

[0124] According to some embodiments, a method deployed in a UE configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or or downlink, wherein the method comprises receiving an indication to switch use of a first BWP to a second BWP and determining whether physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during prior use of the second BWP. The method further comprises applying the previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP.

[0125] According to some embodiments, a method deployed in a UE configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or or downlink, wherein the method comprises receiving an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupting the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP.

[0126] According to some embodiments, a method deployed in a UE configured to selectively operate on one of two or more previously configured BWPs, each BWP being a different subset of a bandwidth available for uplink operation and/or or downlink, wherein the method comprises receiving an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, stopping the operation of one or more physical layer procedures and waiting for a predetermined time for receiving a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The method also comprises, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switching to the use of a standard BWP from among the two or more Preconfigured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, one or more physical layer parameters and/or procedures. The method may include providing user data and forwarding the user data to a host computer via transmission to the base station.

[0127] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than an available bandwidth for uplink and/or downlink operation, the method comprises, at the host computer, receiving user data transmitted to the base station from the UE, wherein the method comprises, at the UE, receiving an indication to switch the use of a first BWP to a second BWP and, after switching to the use of the second BWP, apply a predetermined default configuration, which corresponds to the second BWP, the one or more physical layer parameters and/or procedures.

[0128] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than an available bandwidth for uplink and/or downlink operation, the method comprises, at the host computer, receiving user data transmitted to the base station from the UE, wherein the method comprises, at the UE, determine whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during previous use of the second BWP. The method, in the UE, also comprises applying the previously configured physical layer parameters and/or procedures to the second BWP by determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during previous use of the second BWP.

[0129] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than an available bandwidth for uplink and/or downlink operation, the method comprises, at the host computer, receiving user data transmitted to the base station from the UE, wherein the method comprises, at the UE, receive an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupt the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more physical layer procedures stopped for the second BWP.

[0130] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than an available bandwidth for uplink and/or downlink operation, the method comprises, at the host computer, receiving user data transmitted to the base station from the UE, wherein the method comprises, at the UE, receive an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, interrupt the operation of one or more physical layer procedures and wait a predetermined time for receipt of a command that activates and /or that configures the one or more interrupted physical layer procedures for the second BWP. The method also comprises, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switching to the use of a standard BWP from among the two or more Preconfigured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, one or more physical layer parameters and/or procedures. The method may further comprise, in the UE, providing user data to the base station. The method may comprise, on the UE, executing a client application, thereby providing user data to be transmitted, and, on the host computer, executing a host application associated with the client application. The method may include, in the UE, running a client application and receiving input data for the client application, the input data being provided at the host computer running a host application associated with the client application, wherein the user data to be transmitted is provided by the client application in response to input data.

[0131] According to some embodiments, a communication system that includes a host computer comprising a communication interface configured to receive user data originating from a transmission from a UE to a base station, the UE configured to operate selectively on one of two or more previously configured BWPs, with each BWP being a different subset of bandwidth available for uplink and/or downlink operation, wherein the base station comprises a radio interface and set of processing circuits configured to send, to the UE, an indication to switch the use of a first BWP to a second BWP, count a number of physical layer reports expected from the UE during use of the second BWP but not received, and, responsive to the number reaching a predetermined threshold, send one or more MAC CEs to configure physical layer reporting for the second BWP. The communication system may further include the base station and/or the UE, wherein the UE is configured to communicate with the base station. The processing circuitry of the host computer may be configured to execute a host application, and the UE may be configured to execute a client application associated with the host application, thereby providing user data to be received by the host computer.

[0132] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than a bandwidth available for uplink and/or downlink operation, wherein the method comprises, at the host computer, receiving, from the base station, user data that originates from a transmission which the base station has received from the UE, wherein the method, in the UE, comprises receiving an indication to switch the use of a first BWP to a second BWP and, after switching to the use of the second BWP, applying a predetermined default configuration, which corresponds to the second BWP, to one or more physical layer parameters and/or procedures.

[0133] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than a bandwidth available for uplink and/or downlink operation, wherein the method comprises, at the host computer, receiving, from the base station, user data that originates from a transmission which the base station has received from the UE, wherein the method, in the UE, comprises receiving an indication to switch the use of a first BWP to a second BWP and determining whether physical layer parameters and/or procedures for the second BWP have been previously configured by CEs of MAC during previous use of the second BWP. The method, in the UE, also comprises applying previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during use. of the second BWP.

[0134] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than a bandwidth available for uplink and/or downlink operation, wherein the method comprises, at the host computer, receiving, from the base station, user data that originates from a transmission which the base station has received from the UE, wherein the method, in the UE, comprises receiving an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, stopping the operation of one or more layer procedures physical layer until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP.

[0135] According to some embodiments, a method implemented in a communication system that includes a host computer, a base station, and a UE configured to operate selectively on one of two or more previously configured BWPs, each BWP being a subset other than a bandwidth available for uplink and/or downlink operation, wherein the method comprises, at the host computer, receiving, from the base station, user data that originates from a transmission to which the base station received the from the UE, wherein the method, in the UE, comprises receiving an indication to switch the use of a first BWP to a second BWP and, upon switching to the use of the second BWP, stopping the operation of one or more physical layer procedures and waiting a predetermined time to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The method, in the UE, also comprises, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switching to the use of a standard BWP from among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures. The method may include, at the base station, receiving the user data from the UE and, at the base station, initiating a transmission of the received user data to the host computer.

[0136] As discussed in detail above, the techniques described in the present invention, for example, as illustrated in the process flow diagrams of Figures 6, and 8 to 11, can be implemented, in whole or in part, with the use of computer program instructions executed by one or more processors. It will be appreciated that a functional implementation of these techniques can be represented in terms of functional modules, wherein each functional module corresponds to a functional software unit running on an appropriate processor or to a functional digital hardware circuit, or some combination of both.

[0137] Figure 18 illustrates an exemplary functional module or circuit architecture, as may be deployed in network node 30. In Figure 18, network node 30 includes a sending module 1802, a counting module 1804, and a 2206, which are implemented in a processing circuit 32, for example, as illustrated in Figure 5 and, more particularly, with the use of computer program code 46 stored in memory 44, again as illustrated in Figure 5. Each one of the functional components 1802, 1804 and 1806 may thus be understood as comprising a functional code module, or as comprising a processing circuit coupled to a memory that stores such code - in some embodiments, such functional components will be implemented in a single processing circuit, but the functional modules can be divided between several processing circuits in other embodiments.

[0138] The functional implementation, shown in Figure 18, includes a sending module 1802 for sending, to a wireless device 50, an indication to switch the use of a first BWP to a second BWP. The implementation includes a counting module 1804 to count a number of physical layer reports expected from the wireless device during use of the second BWP but not received. The implementation includes a sending module 1806, responsive to the number reaching a predetermined threshold, to send one or more MAC CEs to configure physical layer reporting for the second BWP.

[0139] Figure 19 illustrates an exemplary functional module or circuit architecture, as may be implemented in the wireless device 50. In Figure 19, the wireless device 50 includes a receive module 1902 and an application module 1904, which are implemented in a processing circuit 52, for example, as illustrated in Figure 7, and more particularly, with the use of computer program code 66 stored in memory 64, again as illustrated in Figure 7. Each of the functional components 1902 and 1904 can thus be understood as comprising a functional code module, or as comprising a processing circuit coupled with a memory that stores such code - in some embodiments, these functional components will be implemented in a single processing circuit , but the functional modules may be divided among several processing circuits in other embodiments.

[0140] The functional implementation, shown in Figure 19, includes a reception module 1902 for receiving an indication to switch the use of a first BWP to a second BWP, and an application module 1904 for, after switching to the use of the second BWP, apply a predetermined default configuration, which corresponds to the second BWP, one or more physical layer parameters and/or procedures.

[0141] Figure 20 illustrates an exemplary functional module or circuit architecture, again as may be implemented in the wireless device 50. In Figure 20, the wireless device 50 includes a receive module 2002, a determiner module 2004, and a application module 2006, which are implemented in a processing circuit 52, for example, as illustrated in Figure 7 and, more particularly, with the use of computer program code 66 stored in memory 64, again as illustrated in Figure 7. Each of the functional components 2002, 2004 and 2006 can thus be understood as comprising a functional code module, or as comprising a processing circuit coupled to a memory that stores such code - in some embodiments, these components Functional modules will be implemented in a single processing circuit, but functional modules can be divided among several processing circuits in other embodiments.

[0142] The implementation, shown in Figure 20, includes a receiving module 2002 for receiving an indication to switch the use of a first BWP to a second BWP and a determining module 2004 for determining whether physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during previous use of the second BWP. The deployment also includes an application module 2006 to apply previously configured physical layer parameters and/or procedures to the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP have been previously configured by MAC CEs during previous use of the second BWP.

[0143] Figure 21 illustrates another exemplary functional module or circuit architecture, as may be implemented in the wireless device 50. In Figure 21, the wireless device 50 includes a receive module 2102 and an interrupt module 2204, which are implemented in a processing circuit 52, for example, as illustrated in Figure 7, and more particularly, with the use of computer program code 66 stored in memory 64, again as illustrated in Figure 7. Each of the functional components 2102 and 2104 can thus be understood as comprising a functional code module, or as comprising a processing circuit coupled with a memory that stores such code - in some embodiments, these functional components will be implemented in a single processing circuit , but the functional modules may be divided among several processing circuits in other embodiments.

[0144] The implementation, shown in Figure 21, includes a receive module 2102 for receiving an indication to switch from use of a first BWP to a second BWP and an interrupt module 2104 to, upon switching to use of the second BWP, interrupting the operation of one or more physical layer procedures until receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP.

[0145] Figure 22 illustrates yet another exemplary functional module or circuit architecture, as may be implemented in the wireless device 50. In Figure 22, the wireless device 50 includes a receive module 2202, an interrupt module 2204 and module switching circuits 2206, which are implemented in a processing circuit 52, for example, as illustrated in Figure 7 and, more particularly, with the use of computer program code 66 stored in memory 64, again as illustrated in Figure 7. Each one of the functional components 2202, 2204 and 2206 may thus be understood as comprising a functional code module, or as comprising a processing circuit coupled to a memory that stores such code - in some embodiments, such functional components will be implemented in a single processing circuit, but the functional modules can be divided between several processing circuits in other embodiments.

[0146] The implementation shown in Figure 22 includes a receive module 2202 for receiving an indication to switch from use of a first BWP to a second BWP and an interrupt module 2204 to, upon switching to use of the second BWP, interrupt the operating one or more physical layer procedures and waiting a predetermined time to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP. The implementation also includes a switch module 2206 to, upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch to the use of a BWP. pattern among the two or more previously configured BWPs and apply a predetermined default configuration, which corresponds to the default BWP, the one or more physical layer parameters and/or procedures.

[0147] Many variations and modifications can be made to the embodiments without departing substantially from the principles of the present inventive concepts. All such variations and modifications are intended to be included in the present invention within the scope of the present inventive concepts. Accordingly, the subject matter disclosed above should be considered illustrative and not restrictive, and the exemplary embodiments are intended to encompass all such modifications, improvements and other embodiments, which fall within the spirit and scope of the present inventive concepts. Accordingly, to the fullest extent permitted by law, the scope of the present inventive concepts shall be determined by the broadest permissible interpretation of the present invention, including exemplary embodiments and their equivalents, and shall not be restricted or limited by the foregoing detailed description.

Claims (6)

1. Method (900), on a wireless device (50) configured to selectively operate on one of two or more previously configured bandwidth chunks (BWPs), each BWP being a different subset of a bandwidth available for operation uplink and/or downlink, the method characterized by the fact that it comprises: receiving (902) an indication to switch from the use of a first BWP to a second BWP; determining (904) whether physical layer parameters and/or procedures for the second BWP were previously configured by medium access control (MAC) control elements (CEs) during previous use of the second BWP; and applying (906) the previously configured physical layer parameters and/or procedures for the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP . 2. Method (1100), in a wireless device (50) configured to selectively operate on one of two or more previously configured bandwidth chunks (BWPs), each BWP being a different subset of a bandwidth available for operation uplink and/or downlink, the method characterized by the fact that it comprises: receiving (1102) an indication to switch from the use of a first BWP to a second BWP; upon switching to the use of the second BWP, interrupt (1104) operation of one or more physical layer procedures and wait a predetermined time for receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP; and upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch (1106) to the use of a standard BWP among the two or more BWPs previously configured and apply a predetermined default configuration, which corresponds to the standard BWP, one or more physical layer parameters and/or procedures. 3. Wireless device (50) configured to selectively operate on one of two or more previously configured bandwidth chunks (BWPs), each BWP being a different subset of a bandwidth available for uplink and/or uplink operation. downlink, the wireless device characterized by the fact that it comprises: a set of transceiver circuits configured to communicate with a network node of a wireless communication network; and set of processing circuitry operatively associated with the set of transceiver circuitry and configured to: receive (902) an indication to switch from the use of a first BWP to a second BWP; determining (904) whether physical layer parameters and/or procedures for the second BWP were previously configured by medium access control (MAC) control elements (CEs) during previous use of the second BWP; and applying (906) the previously configured physical layer parameters and/or procedures for the second BWP upon determining that the physical layer parameters and/or procedures for the second BWP were previously configured by MAC CEs during prior use of the second BWP . 4. Wireless device (50), according to claim 3, characterized by the fact that the set of processing circuits is configured to apply the previously configured physical layer parameters and/or procedures for the second BWP, further conditioned upon determining that those previously configured physical layer parameters and/or procedures for the second BWP were configured within a predetermined time interval before switching from the first BWP to the second BWP. 5. Wireless device (50), according to claim 3, characterized by the fact that the set of processing circuits is configured to apply the previously configured physical layer parameters and/or procedures for the second BWP, further conditioned upon determining that no change from the active state to the idle state and/or no handover has occurred since the previously configured physical layer parameters and/or procedures for the second BWP were configured. 6. Wireless device (50) configured to selectively operate on one of two or more previously configured bandwidth chunks (BWPs), each BWP being a different subset of a bandwidth available for uplink and/or uplink operation. downlink, the wireless device characterized by the fact that it comprises: a set of transceiver circuits configured to communicate with a network node of a wireless communication network; and a set of processing circuitry operatively associated with the set of transceiver circuitry and configured to: receive (1102) an indication to switch from the use of a first BWP to a second BWP; upon switching to the use of the second BWP, interrupt (1104) operation of one or more physical layer procedures and wait a predetermined time for receipt of a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP; and upon failure to receive a command that activates and/or configures the one or more interrupted physical layer procedures for the second BWP, within the predetermined time, switch (1106) to the use of a standard BWP among the two or more BWPs previously configured and apply a predetermined default configuration, which corresponds to the standard BWP, one or more physical layer parameters and/or procedures.