Power boosting limited resource blocks

Abstract

The present disclosure relates to power boosting limited resource blocks. A user equipment, UE, and a network node of a mobile communication system, and a method for operating the UE and the network node are described, wherein: it is determined, based on a plurality of defined parameters, whether a resource block, RB, allocation with respect to a wireless signal waveform is a boosting limited allocation; and a transmission power of the RB allocation is decided in dependence on the determination whether the RB allocation is a boosting limited RB allocation.

Description

Technical Field

[0001] Various example embodiments generally relate to resource blocks in wireless signal waveforms where power boosting is limited. Background Technology

[0002] Data can be transmitted from a user equipment (UE) of a communication system to a network node using a defined transmission waveform. Such data can be organized into resource block allocations. Some resource block allocations may have a lower power boost value than adjacent resource block allocations. Summary of the Invention

[0003] The independent claims define the scope of protection for various embodiments of the invention. Embodiments and features described in this specification that are not within the scope of the independent claims (if any) are to be interpreted as examples that aid in understanding the various embodiments of the invention.

[0004] In a first aspect, this specification describes a user equipment (UE) for a mobile communication system, the UE comprising: components for determining whether a resource block (RB) allocation of a radio signal waveform (e.g., an OFDM-based waveform, such as DFT-s-OFDM) is a boost-limited RB allocation; and components for determining a transmission power for the RB allocation based on the determination that the RB allocation is a boost-limited RB allocation. The determination of whether an RB allocation is a boost-limited RB allocation is based on a combination of one or more of the following (e.g., all): a first parameter comprising a maximum number of RBs N_RB in the channel bandwidth for communication between the UE and a network node (e.g., gNB) of the mobile communication system; a second parameter comprising a guard band parameter based on a guard band GB_U at the upper edge of the UE channel bandwidth or a guard band GB_L at the lower edge of the UE channel bandwidth; and a third parameter comprising a maximum frequency offset starting from the lower edge of the UE channel bandwidth of a spectrum transmit mask (SEM) that limits power boost capability. Or the maximum frequency offset starting from the upper edge of the UE channel bandwidth of the SEM. ; and a fourth parameter, which includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped.

[0005] The UE can receive resource allocations for at least one UL transmission, and the resource allocations can involve predefined resource blocks.

[0006] The UE can use the determined transmit power to transmit at least one UL transmission.

[0007] An RB allocation can be defined by the index of the first RB in the RB allocation, RB_start, and the number of RBs in the RB allocation, LCRB.

[0008] Determining whether an RB allocation is a promotion-limited RB allocation may include determining whether the following conditions are met: , Among them BW RB That is the bandwidth of each RB.

[0009] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0010] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0011] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0012] In some example embodiments, determining the transmission power allocated to the RB includes determining parameters associated with the transmission power, wherein the parameters include at least one of the following for the RB allocation: power boost, maximum power reduction (MPR), power boost offset, or MPR offset. The parameters associated with the transmission power may be specified in a standard or received from a network node. In some example embodiments, the UE includes components for instructing the network node on the determined parameters.

[0013] In some example embodiments, the UE includes components for receiving configuration information from a network node, wherein the configuration information includes the modulation and waveform configuration of a radio signal. The configured radio signal waveform may, for example, be a single-carrier waveform with phase-rotation phase-shift keying modulation, and wherein the determination is in response to the configuration of the single-carrier waveform with phase-rotation phase-shift keying modulation.

[0014] The UE may also include a component for receiving an indication for determining whether the RB allocation is an uplift-restricted RB allocation, wherein the determination is in response to the received indication.

[0015] The UE may also include components for sending an indication to the network node whether additional power reduction is required to enhance the limited RB allocation.

[0016] The UE may also include components for sending a request to a network node to not configure a limited RB allocation.

[0017] In a second aspect, this specification describes a user equipment (UE) for a mobile communication system, the UE comprising: components for determining whether a resource block (RB) allocation of a radio signal waveform (e.g., an OFDM-based waveform, such as DFT-s-OFDM) is a boost-limited RB allocation; and components for determining the transmission power for the RB allocation based on the determination that the RB allocation is a boost-limited RB allocation. The determination of whether an RB allocation is a boost-limited RB allocation is based on a combination of one or more of the following (e.g., all): a first parameter comprising the maximum number of RBs N_RB in the channel bandwidth for communication between the UE and a network node (e.g., gNB) of the mobile communication system; and a second parameter comprising one of the following: a maximum frequency offset correspondingly starting from the lowest frequency of the UE's channel bandwidth. and minimum frequency offset Or, correspondingly, the minimum frequency offset starting from the highest frequency of the UE channel bandwidth. and maximum frequency offset ; and a third parameter, which includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped.

[0018] The UE can receive resource allocations for at least one UL transmission, and the resource allocations can involve predefined resource blocks.

[0019] The UE can use the determined transmit power to transmit at least one UL transmission.

[0020] An RB allocation can be defined by the index of the first RB in the RB allocation, RB_start, and the number of RBs in the RB allocation, LCRB.

[0021] Determining whether an RB allocation is a promotion-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0022] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0023] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0024] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0025] In some example embodiments, determining the transmission power allocated to an RB includes determining parameters associated with the transmission power, wherein the parameters include at least one of the following for the RB allocation: power boost, maximum power reduction (MPR), power boost offset, or MPR offset. For example, the parameters associated with the transmission power may be specified in a standard or received from a network node.

[0026] The UE may also include components for instructing network nodes on the determined parameters.

[0027] The UE may also include components for receiving configuration information from a network node, wherein the configuration information includes the modulation and waveform configuration of a radio signal. The configured radio signal waveform may, for example, be a single-carrier waveform with phase-rotation phase-shift keying modulation, and wherein the determination is in response to the configuration of the single-carrier waveform with phase-rotation phase-shift keying modulation.

[0028] The UE may also include a component for receiving an indication for determining whether the RB allocation is an uplift-restricted RB allocation, wherein the determination is in response to the received indication.

[0029] The UE may also include components for sending an indication to the network node whether additional power reduction is required to enhance the limited RB allocation.

[0030] The UE may also include components for sending a request to a network node to not configure a limited RB allocation.

[0031] In some example implementations, the second parameter is predefined in the standard and associated with RB allocation, or configured by the network node.

[0032] In a third aspect, this specification describes a method comprising: determining whether a resource block (RB) allocation of a radio signal waveform (e.g., an OFDM-based waveform, such as DFT-s-OFDM) is a boost-limited RB allocation; and determining the transmission power for the RB allocation based on the determination that the RB allocation is a boost-limited RB allocation. The determination of whether an RB allocation is a boost-limited RB allocation is based on a combination of one or more of the following (e.g., all): a first parameter comprising a maximum number of RBs N_RB in the channel bandwidth for communication between a UE and a network node (e.g., gNB) of a mobile communication system; a second parameter comprising a guard band parameter based on a guard band GB_U at the upper edge of the UE channel bandwidth or a guard band GB_L at the lower edge of the UE channel bandwidth; and a third parameter comprising a maximum frequency offset starting from the lower edge of the UE channel bandwidth of a spectrum transmit mask (SEM) that limits power boost capability. Or the maximum frequency offset starting from the upper edge of the UE channel bandwidth of the SEM. ; and a fourth parameter, which includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped.

[0033] The UE can receive resource allocations for at least one UL transmission, and the resource allocations can involve predefined resource blocks.

[0034] The UE can use the determined transmit power to transmit at least one UL transmission.

[0035] An RB allocation can be defined by the index of the first RB in the RB allocation, RB_start, and the number of RBs in the RB allocation, LCRB.

[0036] Determining whether an RB allocation is a promotion-limited RB allocation may include determining whether the following conditions are met: , Among them BW RB That is the bandwidth of each RB.

[0037] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0038] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0039] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0040] In some example embodiments, determining the transmission power allocated to the RB includes determining parameters associated with the transmission power, wherein the parameters include at least one of the following for the RB allocation: power boost, maximum power reduction (MPR), power boost offset, or MPR offset. The parameters associated with the transmission power may be specified in a standard or received from the network node. In some example embodiments, when executed by the at least one processor, the instruction also causes the UE to indicate the determined parameters to the network node.

[0041] The method may further include receiving configuration information from a network node, wherein the configuration information includes the modulation and waveform configuration of a wireless signal. The configured wireless signal waveform may, for example, be a single-carrier waveform with phase-rotation phase-shift keying modulation, and wherein the determination is in response to the configuration of the single-carrier waveform with phase-rotation phase-shift keying modulation.

[0042] The method may further include receiving an indication for determining whether the RB allocation is a promotion-restricted RB allocation, wherein the determination is in response to the received indication.

[0043] The method may also include sending an indication to network nodes whether additional power reduction is required to improve the limited RB allocation.

[0044] The method may also include sending a request to the network node to not configure a boost-restricted RB allocation.

[0045] In a fourth aspect, this specification describes a method comprising: determining whether a resource block (RB) allocation of a radio signal (e.g., an OFDM-based waveform, such as DFT-s-OFDM) is a boost-limited RB allocation; and determining a transmission power for the RB allocation based on the determination that the RB allocation is a boost-limited RB allocation. The determination of whether an RB allocation is a boost-limited RB allocation is based on some combination of one or more of the following (e.g., all): a first parameter comprising the maximum number of RBs N_RB in the channel bandwidth for communication between a UE and a network node (e.g., gNB) in a mobile communication system; and a second parameter comprising one of the following: a maximum frequency offset correspondingly starting from the lowest frequency of the UE's channel bandwidth. and minimum frequency offset Or, correspondingly, the minimum frequency offset starting from the highest frequency of the UE channel bandwidth. and maximum frequency offset ; and a third parameter, which includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped.

[0046] The UE can receive resource allocations for at least one UL transmission, and the resource allocations can involve predefined resource blocks.

[0047] The UE can use the determined transmit power to transmit at least one UL transmission.

[0048] An RB allocation can be defined by the index of the first RB in the RB allocation, RB_start, and the number of RBs in the RB allocation, LCRB.

[0049] Determining whether an RB allocation is a promotion-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0050] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0051] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0052] Alternatively or otherwise, determining whether an RB allocation is a boost-limited RB allocation may include determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

[0053] In some example embodiments, determining the transmission power allocated to an RB includes determining parameters associated with the transmission power, wherein the parameters include at least one of the following for the RB allocation: power boost, maximum power reduction (MPR), power boost offset, or MPR offset. For example, the parameters associated with the transmission power may be specified in a standard or received from a network node.

[0054] The method may also include the UE indicating the determined parameters to the network node.

[0055] The method may further include receiving configuration information from a network node, wherein the configuration information includes the modulation and waveform configuration of a wireless signal. The configured wireless signal waveform may, for example, be a single-carrier waveform with phase-rotation phase-shift keying modulation, and wherein the determination is in response to the configuration of the single-carrier waveform with phase-rotation phase-shift keying modulation.

[0056] The method may further include receiving an indication for determining whether the RB allocation is a promotion-restricted RB allocation, wherein the determination is in response to the received indication.

[0057] The method may also include sending an indication to network nodes whether additional power reduction is required to improve the limited RB allocation.

[0058] The method may also include sending a request to the network node to not configure a boost-restricted RB allocation.

[0059] In some example implementations, the second parameter is predefined in the standard and associated with RB allocation, or configured by the network node.

[0060] In a fifth aspect, this specification describes a computer program product including program instructions that, when executed by a computing device, cause the computing device to: determine whether a resource block (RB) allocation of a radio signal waveform (e.g., an OFDM-based waveform, such as DFT-s-OFDM) is a boost-limited RB allocation; and determine a transmission power for the RB allocation based on the determination that the RB allocation is a boost-limited RB allocation. The determination of whether an RB allocation is a boost-limited RB allocation is based on a combination of one or more of the following (e.g., all): a first parameter including a maximum number of RBs N_RB in the channel bandwidth for communication between a UE and a network node (e.g., gNB) in a mobile communication system; a second parameter including a guard band parameter based on a guard band GB_U at the upper edge of the UE channel bandwidth or a guard band GB_L at the lower edge of the UE channel bandwidth; and a third parameter including a maximum frequency offset starting from the lower edge of the UE channel bandwidth of a spectrum transmit mask (SEM) that limits power boost capability. Or the maximum frequency offset starting from the upper edge of the UE channel bandwidth of the SEM. ; and a fourth parameter, which includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped.

[0061] In a sixth aspect, this specification describes a computer program product including program instructions that, when executed by a computing device, cause the computing device to: determine whether a resource block (RB) allocation for a radio signal (e.g., an OFDM-based waveform, such as DFT-s-OFDM) is a boost-limited RB allocation; and determine the transmission power for the RB allocation based on the determination that the RB allocation is a boost-limited RB allocation. The determination of whether an RB allocation is a boost-limited RB allocation is based on some combination of one or more of the following (e.g., all): a first parameter including the maximum number of RBs N_RB in the channel bandwidth for communication between a UE and a network node (e.g., gNB) in a mobile communication system; and a second parameter including one of the following: a maximum frequency offset correspondingly starting from the lowest frequency of the UE's channel bandwidth. and minimum frequency offset Or, correspondingly, the minimum frequency offset starting from the highest frequency of the UE channel bandwidth. and maximum frequency offset ; and a third parameter, which includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped.

[0062] In a seventh aspect, this specification describes a computer-readable instruction that, when executed by a computing device, causes the computing device to perform (at least) any of the methods described herein (including the methods of the third and fourth aspects above).

[0063] In an eighth aspect, this specification describes a computer-readable medium (such as a non-transitory computer-readable medium) including program instructions stored thereon, which are used to (at least) perform any of the methods described herein (including the methods of the third and fourth aspects above).

[0064] In a tenth aspect, this specification describes a computer program product including program instructions that, when executed by a device, cause the device to perform at least any of the methods described herein (including the methods of the third and fourth aspects above).

[0065] In an eleventh aspect, this specification describes an apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to perform at least any of the methods described herein (including the methods of the third and fourth aspects above). Attached Figure Description

[0066] Exemplary embodiments will now be described by way of non-limiting example with reference to the accompanying drawings, in which:

[0067] Figure 1 This is a block diagram of the example system;

[0068] Figure 2 The resource blocks used in the example implementation of the principles described in this article are shown;

[0069] Figure 3 This is a flowchart illustrating operations according to an example embodiment;

[0070] Figure 4 This is a signal flow diagram based on an example embodiment;

[0071] Figure 5 The UE channel and spectrum transmission mask according to an example embodiment are shown;

[0072] Figure 6 A shaped UE channel according to an example embodiment is shown.

[0073] Figure 7 A UE channel according to an example embodiment is shown;

[0074] Figures 8 to 11 This is a signal flow diagram based on an example embodiment;

[0075] Figure 12 An example of the device is illustrated; and

[0076] Figure 13 An example of a non-transient medium is illustrated. Detailed Implementation

[0077] As discussed in detail below, the various example embodiments generally relate to resource blocks (RBs) with limited power boost in wireless signal waveforms.

[0078] The following embodiments are provided by way of example only. Although the specification may refer to "an," "one," or "some" embodiments in several places in the text, this does not necessarily mean that each reference is for the same embodiment or that a particular feature applies only to a single embodiment. Individual features of different embodiments may also be combined to provide other embodiments. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, those skilled in the art can apply those features, structures, or characteristics in combination with other embodiments, whether or not they are explicitly described. It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another.

[0079] For the purposes of this disclosure, the phrases "at least one of A or B", "at least one of A and B", and "A and / or B" refer to (A), (B), or (A and B). For the purposes of this disclosure, the phrases "A, B, and / or C" refer to (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C).

[0080] The embodiments described can be implemented in a communication network, such as any of the following radio access technologies (RATs): Global Microwave Access Interoperability (WiMAX), Global System for Mobile Communications (GSM, 2G), GSM EDGE Radio Access Network (GERAN), General Packet Radio Service (GRPS), Universal Mobile Telecommunications System based on Basic Wideband Code Division Multiple Access (W-CDMA) (UMTS, 3G), High-Speed ​​Packet Access (HSPA), Long Term Evolution (LTE), Advanced LTE and Enhanced LTE (eLTE), 5G (also known as NR), or any future RAT, such as 6G. Furthermore, communication within the communication network can utilize any suitable wireless communication technology, including but not limited to: Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Frequency Division Duplex (FDD), Time Division Duplex (TDD), Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency Division Multiplexing (OFDM), and / or Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM).

[0081] As used herein, the term "network device" or "network node" refers to a node in a communication network through which user equipment can access the network and / or through which the node can control wireless communication and manage wireless resources within a cell. A network node or network device may be referred to as a base station (BS), access point (AP), or access node. Depending on the technology used, a network device may be, for example, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), an NR NB (also known as a gNB), a Remote Radio Unit (RRU), a Radio Headend (RH), a Remote Radio Headend (RRH), a relay, an Integrated Access and Backhaul (IAB) node, a low-power node, a non-terrestrial network (NTN) or non-terrestrial network equipment (such as satellite network equipment, low Earth orbit (LEO) satellites, and geostationary orbit (GEO) satellites), or an aircraft network device.

[0082] The term "terminal device" refers to any terminal device capable of wireless communication. For example, a terminal device may be referred to as a communication device, user equipment (UE), subscriber station (SS), or mobile station (MS). Terminal devices can include mobile phones, cellular phones, smartphones, Voice over IP (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image capture terminal devices (such as digital cameras), gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, USB dongles, Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), automobiles, drones, medical devices and applications (e.g., remote surgery), industrial devices and applications (e.g., robots and / or other wireless devices operating in the context of industrial and / or automated processing chains), consumer electronics devices, devices operating on commercial and / or industrial wireless networks, and so on.

[0083] As used herein, the term "resource" can refer to radio resources in the time domain, frequency domain, spatial domain, and / or code domain. Some examples of resources include, for example, physical resource blocks (PRBs), radio frames, subframes, time slots, subbands, frequency regions, subcarriers, beams, etc. The terms "transmission" and / or "reception" can refer to wireless transmission and / or reception on radio resources via a radio propagation channel.

[0084] Figure 1 An example of a communication network to which the examples disclosed herein can be applied is illustrated, generally indicated by reference numeral 1. The communication network, or cellular communication network, may include a network node 10 providing one or more cells (such as cell 11) and a network node 12 providing one or more other cells (such as cell 13). Each cell may be, for example, a macrocell, microcell, femtocell, or picocell. A cell may define the coverage area or service area of ​​a corresponding access node.

[0085] Network node 10 can provide radio access to a communication network to user equipment (UE) 15, which may be one of a plurality of similar UEs served by network node 10. Radio access may include downlink (DL) communication from network node 10 to UE 15 and uplink (UL) communication from UE 15 to network node 10. Examples of uplink channels include a physical uplink control channel (PUCCH) for transmitting control information and a physical uplink shared channel (PUSCH) for transmitting data to the network. Examples of downlink channels include a physical downlink control channel (PDCCH) for transmitting control information and a physical downlink shared channel (PDSCH) for transmitting data to the user equipment.

[0086] Multiple UEs 15 and 16 can exist in this system. Each of them can be served by the same or different network nodes 10 and 12. UEs can be configured with dual connectivity (DC), where a UE (e.g., UE 15) can connect to multiple network nodes 10 and 12. UEs 15 and 16 can communicate with each other provided that a device-to-device (D2D) communication interface is established between them via a so-called sidelink (SL). For example, such D2D communication can be referred to as machine-to-machine, peer-to-peer (P2P) communication, or vehicle-to-vehicle (V2V) communication.

[0087] In a communication network with multiple network nodes, these nodes can connect to each other via interfaces. The LTE specification refers to this type of interface as the X2 interface. The interface between an LTE node and a 5G node, or between two 5G nodes, can be called an Xn interface.

[0088] Network nodes 10 and 12 can also connect to the core network 18 of the communication network via another interface. The LTE specification designates the core network as an Evolved Packet Core (EPC), and the core network may include, for example, a Mobility Management Entity (MME) and gateway nodes. The MME can handle mobility of terminal devices in tracking areas across multiple cells and handle signaling connections between terminal devices and the core network. Gateway nodes can handle data routing within the core network and data routing to / from terminal devices. The 5G specification designates the core network as a 5G Core (5GC). The 5G Core may include, for example, Access and Mobility Management Functions (AMF) and User Plane Functions / Gateways (UPF), as well as other functions. The AMF can handle non-access stratum (NAS) signaling termination, NAS encryption and integrity protection, registration management, connection management, mobility management, access authentication and authorization, security context management, etc. For example, a UPF node can support packet routing and forwarding, packet inspection, and Quality of Service (QoS) processing.

[0089] Peak-to-average power ratio (PAPR) is a metric used in some physical layer designs. PAPR can be defined as the ratio of the peak power to the average power of the transmitted signal in the time domain, and can refer to the signal at the input of a power amplifier (PA). In waveforms with a high PAPR, there may be occasional spikes in the signal level during the duration of the signal under consideration, resulting in high power peaks.

[0090] Some high PAPR waveforms can work with transmitters that reduce signal power below the maximum power allowed by the PA. This avoids high-level peaks hitting the PA's saturation power region (which not only causes signal distortion but also introduces unwanted transmissions to adjacent frequencies). However, reducing transmit power often equates to reducing coverage. This can be problematic for UL transmissions, as UEs are typically relatively low-power devices (e.g., compared to network nodes such as base stations). Most importantly, high PAPR waveforms also reduce PA efficiency, which can lead to increased transmitter power consumption.

[0091] Using a low PAPR waveform can increase transmit power by allowing for more headroom, thereby improving uplink coverage. Low PAPR waveforms are supported in 5G, and researching new PAPR waveforms with even lower PAPR than currently supported is a research topic in 6G physical layer design.

[0092] For example, the PAPR of Discrete Fourier Transform Spread Spectrum Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveforms can be lower than that of Cyclic Prefix OFDM (CP-OFDM) waveforms. Research in 5G shows that DFT-s-OFDM with pi / 2-BPSK modulation and its variants with spectral shaping have proven to provide good PAPR performance. For 6G, trellis modulation is being considered to further reduce the PAPR of transmitted signals. For example, some existing trellis modulation schemes are based on waveforms according to pi / 2-BPSK or on QPSK; other solutions are also possible.

[0093] In some existing 3GPP standards, the impact of waveforms on UL transmit power is achieved through the required power back-off from the UE's maximum output power, or through so-called maximum power reduction (MPR), where, in this context, MPR involves reducing transmit power or other transmit power-related parameters. The MPR value for a specific waveform can be defined based on examining the impact of different transmit power levels (as a function of power back-off) on a minimum set of RF requirements. RF requirements may include error vector magnitude (EVM), in-band transmit (IBE), adjacent channel leakage ratio (ACLR), spectrum emission mask (SEM), spurious emissions, and occupied bandwidth (OBW).

[0094] For example, in TS38.101-1, 3GPP defines MPR values ​​based on different power class (PC), waveform, and resource block (RB) allocation configurations (i.e., edge, external, and internal). Below is an example of an MPR table for PC2:

[0095] In the 3GPP specification TS38.101-1, the MPR required for low-order modulation (such as BPSK or QPSK) is specified to be lower than that for high-order modulation (such as 16QAM and above). In addition to the power boost capability of the internal RB allocation region, the minimum MPR is also applied to DFT-s-OFDM with pi / 2 BPSK. Many of the example embodiments described herein focus on DFT-s-OFDM with pi / 2-BPSK waveforms; however, it should be noted that the principles described herein are applicable to waveforms with different modulation schemes.

[0096] Figure 2 The resource block RB used in an example implementation of the principles described in this article is shown. Figure 2 The RB shown can be used, for example, to carry a DFT-s-OFDM waveform (or some similar waveform).

[0097] The first set of RB allocation examples (generally indicated by reference numeral 22 in the attached figure) includes the maximum number of RBs N_RB allowed in the channel bandwidth that can be used for communication between the UE and the network node. If all available RBs are used in a particular UE channel (as shown in the first set of RBs 22), then the length L_CRB of the consecutive number of RBs allocated for the UE channel is equal to N_RB.

[0098] The second set of RB allocation examples (generally indicated by reference numeral 23 in the attached figure) includes a subset of the total number of RBs in the channel bandwidth. The second set of RBs is defined by the index RB_start of the first RB in the block and the number of RBs L_CRB allocated for the UE channel.

[0099] The third group of RB allocation examples (indicated by reference numeral 24 in the attached figure) shows a subset of the RB differences, which is again defined by the parameters RB_start and L_CRB. In the third group, RB_start is zero.

[0100] In all RB allocation examples, the UE channel bandwidth is formed by the RB allocation and the guard bands at both ends of the UE channel bandwidth.

[0101] Figure 2 The diagram also shows the RB allocation groups 22 through 24 plotted on a two-dimensional RB allocation graph 26, where the RB_start parameter is plotted on the x-axis and the L_CRB parameter on the y-axis. For the first group of RBs 22, RB_start is zero, and L_CRB is the maximum number of available RBs (18 in the example shown). For the second group of RBs 23, both RB_start and L_CRB are above zero but below the maximum number of RBs. Finally, for the third group of RBs 24, RB_start is zero, and L_CRB is 3. For example, a two-dimensional RB allocation graph can be used to provide a comprehensive view of the transmit power of all possible RB allocation configurations for a given UE channel bandwidth.

[0102] Simulation studies show that the power boost value in certain regions corresponding to a set of RB allocations in the RB allocation diagram is lower than that of adjacent RB allocations. For example, this effect was observed during simulations of high-power UEs (PC2 or higher) based on DFT-s-OFDM pi / 2-BPSK (e.g., ordinary pi / 2-BPSK or pi / 2-BPSK utilizing frequency domain spectral shaping (FDSS) or frequency domain spectral shaping and spectral spreading (FDSS-SE)), whose transmit channel BW >= 50 MHz. The reasons for the so-called V-shaped power boost effect can include one or more of the following: i) pi / 2-BPSK-based modulation produces strong third-order intermodulation distortion (IMD3) components; ii) only RB allocation configurations belonging to boost-limited regions produce such IMD3 drops at narrow frequency bands of the SEM mask; iii) narrow SEM bands are more restrictive than other bands (e.g., see SEM requirements in TS38.101-1). Therefore, the power boost space for these RB allocations is more limited than other allocations.

[0103] The presence of boost-limited regions can be problematic for defining RB allocations that provide power boost values. Boost-limited RBs span both internal and external RB allocation regions, and each RB allocation length can have a corresponding 2 to 4 RB allocation settings (i.e., different indices of the first RB), exhibiting the aforementioned power boost reduction issues. The presence of boost-limited RBs complicates the definition of power boost regions for single-carrier waveforms with phase-rotated phase-shift keying, such as, for example, DFT-s-OFDM pi / 2-BPSK and its variants.

[0104] In some example embodiments, it will be advantageous to provide an algorithm for precisely defining boost-limited RBs that is relatively simple but also effective in not limiting the power boost of other RBs.

[0105] Figure 3 This is a flowchart illustrating operation 40 that can be performed by one or more example embodiments. Operation 40 can be performed by hardware, software, firmware, or a combination thereof. Operation 40 can be performed by one or a corresponding component, which is any suitable component, such as a combination of one or more processors or controllers with computer-readable instructions provided on one or more memories.

[0106] For example, operation 40 can be performed by a first device (e.g., a UE). The UE can be... Figure 1 Any of the UEs 14 and 15 shown (or some similar UE). The order of operations 40 does not necessarily indicate their processing or execution order.

[0107] The first operation 42 may include receiving a resource allocation for at least one UL transmission. The resource allocation may override a predefined resource block.

[0108] The second operation 44 may include determining whether the resource block (RB) allocation for the wireless signal waveform is a boost-limited RB allocation.

[0109] The third operation 46 may include determining the transmission power for the RB allocation based at least in part on the determination of whether the RB allocation is a boost-limited RB allocation, as done in the second operation 44.

[0110] The fourth operation 48 may include performing UL transmission using the power determined in the third operation 46.

[0111] The following describes in detail two embodiments that can be used to implement the second operation 44 described above. These embodiments provide methods for determining whether the RB assignment of a particular waveform is boost-limited (e.g., falls within a boost-limited region).

[0112] The determination method attempts to consider many possible factors affecting the exact configuration of boost-constrained RB allocations. A closed-form computation that is flexible and easy to implement while reusing existing MPR tables is described.

[0113] In the first embodiment discussed in detail below, the second operation 44 determines whether the RB allocation for the wireless signal waveform is a boost-limited RB allocation based on some combination (e.g., all) of the first to fourth parameters. The first parameter includes the maximum number of RBs N_RB in the channel bandwidth of the communication between the UE and the network node of the mobile communication system. The second parameter includes a guard band parameter based on either the guard band GB_U at the upper edge of the UE's channel bandwidth or the guard band GB_L at the lower edge of the UE's channel bandwidth. The third parameter includes the maximum frequency offset starting from the lower edge of the channel bandwidth of the spectrum transmit mask SEM that limits power boost capability. Or the maximum frequency offset starting from the upper edge of the SEM's channel bandwidth. The fourth parameter includes the spectrum shaping parameter %SS, which is based on the percentage of channel bandwidth that is shaped.

[0114] In the second embodiment discussed in detail below, the second operation 44 determines whether the RB allocation for the wireless signal waveform is a boost-limited RB allocation based on a certain combination (e.g., all) of the first to third parameters. The first parameter includes the maximum number of RBs N_RB in the channel bandwidth of the communication between the UE and the network node of the mobile communication system. The second parameter includes one of the following: the maximum frequency offset correspondingly starting from the lowest frequency of the channel bandwidth of the transmit mask that limits the power boost capability. and minimum frequency offset Or, correspondingly, the minimum frequency offset starting from the highest frequency of the channel bandwidth of the transmit mask that limits power enhancement capability. and maximum frequency offset The third parameter includes the spectrum shaping parameter %SS, which is based on the percentage of channel bandwidth that is shaped.

[0115] In newer wireless (5G) and earlier generation systems, the maximum power of a UE is defined based on, for example, the nominal power, MPR, and possible power boosts for the corresponding power level. In 6G, it can also be defined in some other way, such as the maximum power for the highest modulation order and the full channel bandwidth allocation, along with some increments related to, for example, lower modulation orders and frequency allocations. The example embodiments discussed herein generally relate to 5G examples, but these principles can be applied differently; for example, some other incremental parameters corresponding to the maximum power of the associated modulation and frequency allocations.

[0116] Figure 4 This is a signal flow diagram according to an example embodiment, generally indicated by reference numeral 50. Message flow diagram 50 illustrates the messages transmitted between UE 51 and network node 52, and the actions taken at both the UE and the network node. Signal flow diagram 50 illustrates an example implementation of the above-described operation 40.

[0117] The operations of signal flow diagram 50 can be performed by hardware, software, firmware, or a combination thereof. Operation 50 can be performed by one or more components, which are any suitable components, such as one or more processors or controllers combined with computer-readable instructions provided on one or more memories. Note that the order of the operations of signal flow diagram 50 does not necessarily indicate their processing or execution order.

[0118] Flowchart 50 begins with the exchange of configuration information between UE 51 and network node 52 in operation 54.

[0119] The exchange of configuration information may include UE 51 receiving configuration information from network node 52, which includes the configuration of the modulation and waveform of the radio signal. The configured radio signal waveform may be a single-carrier waveform (such as DFT-s-OFDM) with phase-rotation phase shift keying modulation (such as pi / 2-BPSK, pi / 4-QPSK or pi / M-MPSK).

[0120] At operation 55, the restricted RB is determined (at the UE). Therefore, operation 55 is the reference above. Figure 3 The implementation of the second operation 44 described.

[0121] At operation 56, instructions such as network scheduling information are provided from network node 52 to UE 51.

[0122] At operation 57, the UE's transmit power is set at least in part based on the determination made in operation 55. Therefore, operation 57 is the above reference. Figure 3 The implementation of the third operation 46 described.

[0123] Finally, at operation 58, data is sent from UE 51 to network node 52.

[0124] The first example embodiment relates to a situation where power enhancement is limited due to the narrow band of the 5G spectrum transmit mask (SEM).

[0125] The following provides a calculation for determining the boost-limited RB allocation in this embodiment, wherein the boost-limited RB allocation has the index of the first RB (denoted as RB_start) and the length of the number of consecutive RBs allocated for the UE channel (denoted as L_CRB), satisfying one of the following conditions: 1) 2) 3) 4)

[0126] in: • N_RB: As mentioned above, the maximum number of RBs for transmitting BW configuration or UE channel bandwidth. • L_CRB: As mentioned above, the length of the transmission BW or RB allocated (without possible spectral spread). · GB_L Guard band at the lower edge of the UE channel BW. Note that this guard band is configured for the UE channel and takes into account errors that may result from misalignment with the channel grating. This guard band may rely on the SCS. · GB_U Guard band at the upper edge of the UE channel BW. Note that this guard band is configured for the UE channel and takes into account errors that may result from misalignment with the channel grating. This guard band may rely on the SCS. · : The maximum frequency offset starting from the lower edge of the narrow segment of the UE channel BW in the SEM mask (e.g., 1 MHz in 5G). · : The maximum frequency offset starting from the top edge of the narrow segment of the UE channel BW in the SEM mask (e.g., 1 MHz in 5G). · BW RBThe bandwidth of one RB. For example, in 5G with 12 subcarriers per RB, BW RB =12 SCS · % SS : Percentage of UE channel bandwidth that is shaped. For example, if FDSS-SE applies 25% SE, then % SS =25%. For example, if pi / 4-BPSK modulation is applied, 25% of the UE channel BW is shaped, therefore % SS =25%

[0127] These equations can be documented in the standard specification (the UE may know the details when implementing Operation 55). Through the above calculations, the UE can determine whether the configured RB allocation is a boost-limited RB allocation based on the scheduling information. Based on this, an appropriate transmit power / MPR value will be applied. The UE can determine the transmit power / MPR value based on the NW configuration or a predefined specification.

[0128] Below is an example of an NR MPR table considering the MPR for boosting restricted RBs, which can include additional specifications for boosting restricted RB allocations as comments instead of reformatting the current table: Maximum power reduction (MPR) for power level 2

[0129] In the table: · ΔMPR pi2BPSK It is the amount by which the RB allocation area decreases from the maximum power boost value: ○ ΔMPR pi2BPSK The specifications can be added to Clause 6.2.4 of TS38.101-1, including those related to different configurations of the pi / 2-BPSK waveform. ΔMPR pi2BPSK The value of . ○ Can be mentioned ΔMPR pi2BPSK The relationship with duty cycle, for example, allows for longer duty cycles for these RB allocations. · RB allocation set defined in [xxx] "This corresponds to the formula used to determine the RB allocation with limited uplift, i.e., the formula defined in the equation above." ○ Relevant equations can be added to the specifications under this table. · [powerBoosting-pi2BPSK-rxx] This indicates the UE enhancement capabilities based on Pi / 2-BPSK modulation as defined in future versions.

[0130] Figure 5 The UE channel and SEM according to an example embodiment are shown, generally indicated by reference numeral 60. The maximum frequency offset is shown starting from the lower edge of the narrow segment of the UE channel BW mentioned in the above equation. exist Figure 5 The middle mark is The maximum frequency offset starting from the upper edge of the narrow segment of the UE channel BW in the SEM mask. exist Figure 5 This is also evident.

[0131] Figure 6 A shaped UE channel according to an example embodiment is shown, generally indicated by reference numeral 70. Figure 6 The normal (unshaped) spectrum of the UE channel is shown in dashed lines. Figure 6 The definition also specifies the percentage of the UE channel BW that is shaped. SS The equation mentioned above refers to... Figure 6 It is marked in the middle.

[0132] The second embodiment extends to situations where improvements are limited or further power reductions are required due to specific transmit mask (SEM). For example, this could address the concept of future RF requirements for 6G, since SEM may not be a limiting factor, but rather another RF requirement.

[0133] One possible scenario is when the UE's local oscillator (LO) frequency is misaligned with the center frequency of the UE channel but the distance is sufficient, the assigned intermodulation distortion (IMD) and carrier leakage can fall within the in-band frequency range, and their intensity is sufficient to violate the in-band transmission requirements. An illustration of this scenario is shown below.

[0134] Figure 7 A UE channel according to an example embodiment is shown, generally indicated by reference numeral 80. UE channel 80 is related to an example of a second embodiment. Figure 7 In this context, it is assumed that the LO frequency is located at the center of the actually allocated UE channel bandwidth and far from the center of the extended UE channel BW.

[0135] In the second embodiment, the boost-restricted RB allocation has an index of the first RB (denoted as RB_start) and a length of the number of consecutive RBs allocated for the UE channel (denoted as L_CRB), satisfying one of the following conditions: 1) 2) 3) 4)

[0136] The parameters are: • N_RB: The maximum number of RBs allowed in the actual allocated UE channel BW [38.101-1] • L_CRB: Allocated transmission bandwidth, or the length of the RB allocation [38.101-1] (no possible spectrum spread) · , Minimum and maximum frequency offsets (e.g., starting from the lowest frequency of the UE channel BW) Figure 7 (As shown). This indicates the frequency range of the associated transmit mask below the UE channel BW. These offsets include possible guard bands defined for the assigned UE channel BW. · , Minimum and maximum frequency offsets starting from the highest frequency of the UE channel BW (e.g., Figure 7 (As shown). This indicates the frequency range of the relevant transmit mask above the UE channel BW. These offsets include possible guard bands defined for the assigned UE channel BW. · BW RB The bandwidth of one RB. For example, in 5G with 12 subcarriers per RB, BW RB =12 SCS · % SS : Percentage of UE channel BW that is shaped. For example, if FDSS-SE applies 25% SE, then % SS =25%. For example, if pi / 4-BPSK modulation is applied, 25% of the UE channel BW is shaped, therefore % SS BW =25%.

[0137] Compared to the first embodiment where the transmit mask is SEM and is explicitly defined in the specification, the frequency of the transmit mask in the second embodiment can generally be assumed to depend on the UE channel and the allocated configuration.

[0138] In one example implementation, the frequency offset range of the transmit mask can be predefined as a function of the UE channel in the relevant standard specifications. For example, the offset can be defined as a function of the LCRB, LO frequency, and RB allocation center.

[0139] In another example implementation, the network indicates to the UE limited transmission requirements and / or frequency offset range so that the UE can determine the boost-limited RB allocation due to the transmission mask of interest.

[0140] For example, networks can implicitly or explicitly indicate a power boost, MPR, or a corresponding offset for boost-limited RB allocation. Alternatively, they can be predefined in the relevant specifications.

[0141] Consider the following example of an NR MPR table for boosting restricted RBs, where additional specifications for boosting restricted RB allocations can be included as comments instead of reformatting the current table: Maximum power reduction (MPR) for power level 2

[0142] In the table: · ΔMPR pi2BPSK It is the amount by which the RB allocation area decreases from the maximum power boost value: ○ About ΔMPR pi2BPSK The specifications can be added to Clause 6.2.4 of TS38.101-1, including those related to different configurations of the pi / 2-BPSK waveform. ΔMPR pi2BPSK Value, and Signaling used to restrict the launch mask . ○ Can be mentioned ΔMPR pi2BPSK The relationship with duty cycle, for example, allows for longer duty cycles for these RB allocations. ·[ Signaling used to restrict the launch mask ]: Because of the limited RB allocation and ΔMPR pi2BPSK It can depend on specific RF requirements. · RB allocation set defined in [xxx] "This corresponds to the formula used to determine the RB allocation with limited uplift, i.e., the formula defined in the equation above." ○ The corresponding equations can be added to the specifications under this table. · [powerBoosting-pi2BPSK-rxx] This indicates the UE enhancement capabilities based on Pi / 2-BPSK modulation as defined in future versions.

[0143] Figures 8 to 11 This is a signal flow diagram according to an example embodiment. The signal flow diagram includes determining the boost-limited RB. This operation can be implemented according to the first embodiment or the second embodiment described above, or some similar algorithm.

[0144] Figure 8This is a signal flow diagram according to an example embodiment, generally indicated by reference numeral 90. Signal flow diagram 90 illustrates messages sent between a UE 91 (which may be similar to the UE described above) and a network node 92 (which may be similar to network node 52 described above) in an example embodiment, and the operations performed at both the UE and the network node. Network node 92 may be a gNB.

[0145] The operations of signal flow diagram 90 can be performed by hardware, software, firmware, or a combination thereof. Operation 90 can be performed by one or more appropriate components, which are any suitable components, such as one or more processors or controllers combined with computer-readable instructions provided on one or more memories. Note that the order of the operations of signal flow diagram 90 does not necessarily indicate their processing or execution order.

[0146] In operation 93, network node 92 indicates configuration information to UE 91. The configuration information may include the modulation and waveform configuration of the radio signal. The configured radio signal waveform may be a single-carrier waveform with phase-rotation phase shift keying modulation (such as DFT-s-OFDM pi / 2 BPSK).

[0147] In operation 94, network node 92 indicates to the UE parameters for determining the MPR applied to the determined lift-limited RB allocation (i.e., the RB allocation calculated according to the set of equations). These parameters may include: MPR value; or • The incremental value of MPR relative to the RB allocation region to which it belongs, as predefined in the specification.

[0148] Alternatively, the parameters used to determine the MPR can be predefined in the specification.

[0149] In operation 95, after receiving the configuration based on pi / 2-BPSK modulation, UE 91 determines the boost-limited RB allocation. Alternatively, if the gNB sends scheduling information including a configuration of a specific range of RB allocations, there may be a separate indication from the gNB to the UE to trigger the determination of the boost-limited RB allocation. In this way, the UE can save UE computing resources by only needing to compute and store a subset of the boost-limited RBs in memory.

[0150] In operation 96, network node 92 sends scheduling information (e.g., in the form of downlink control information (DCI)).

[0151] If the configured allocation is an enhanced restricted RB allocation, then in operation 97, UE 91 determines the Tx power according to the indicated parameters or standard specifications. The UE configures the Tx power accordingly.

[0152] At operation 98, PUSCH is transmitted from the UE to the network node using the transmit power set in operation 97.

[0153] Figure 9 This is a signal flow diagram according to an example embodiment, generally indicated by reference numeral 100. Signal flow diagram 100 illustrates messages sent between UE 91 and network node 92 in an example embodiment, and operations performed at the UE and network node.

[0154] The operations of signal flow diagram 100 can be performed by hardware, software, firmware, or a combination thereof. Operation 100 can be performed by one or more components, which are any suitable components, such as a combination of one or more processors or controllers with computer-readable instructions provided on one or more memories. Note that the order of the operations of signal flow diagram 100 does not necessarily indicate their processing or execution order.

[0155] In operation 101 (which may be omitted in some example embodiments), UE 91 indicates to network node 92 whether the ability to add MPR is needed or not in the elevation-restricted area.

[0156] At operation 102, network node 92 indicates configuration information to UE 91, such as the requirement to use pi / 2 BPSK-based modulation. Operation 102 (which, if provided, can be triggered by operation 101) is similar to operation 92 described above.

[0157] In operation 103 (which may be omitted in some example embodiments), UE 91 requests that no boost-limited RB allocation be configured. Note that operations 101 and 103 can be different options, and therefore one may be omitted in some example embodiments. For example, operation 103 can be used if the UE always wants to transmit (transit) at the highest possible transmit power.

[0158] In operation 104, network node 92 sends scheduling information (e.g., in the form of downlink control information (DCI)).

[0159] In operation 105, after receiving the configuration based on pi / 2-BPSK modulation, UE 91 determines the boost-limited RB allocation. Alternatively, if the gNB sends scheduling information including a configuration of a specific range of RB allocations, there may be a separate indication from the gNB to the UE to trigger the determination of the boost-limited RB allocation. In this way, the UE can save UE computing resources by only needing to compute and store a subset of the boost-limited RBs in memory. Operation 105 can be similar to operation 95 described above.

[0160] In operation 106 (which may be omitted in some example embodiments), UE 91 indicates its desired MPR to the network by sending message 106 to network node 92. Message 106 may signal the MPR value or may signal an incremental value of the MPR relative to its RB allocation area (e.g., the MPR of the RB allocation area is predefined). This process may be useful, for example, because different UEs typically have different PA nonlinear behaviors, resulting in different IMD levels. In another scenario, as described above with respect to operation 101, the UE may indicate whether or not it has the capability to add MPR when boosting restricted areas. Possible MPR signaling may be part of capability signaling.

[0161] In operation 107, UE 91 determines the Tx power based on the indicated parameters or standard specifications. The UE then configures the Tx power accordingly.

[0162] At operation 108, PUSCH is transmitted from the UE to the network node using the transmit power set in operation 107.

[0163] Figure 10 This is a signal flow diagram according to an example embodiment, generally indicated by reference numeral 110. Signal flow diagram 110 illustrates messages sent between UE 91 and network node 92 in an example embodiment, and operations performed at the UE and network node.

[0164] The operations of signal flow diagram 110 can be performed by hardware, software, firmware, or a combination thereof. Operation 110 can be performed by one or more components, which are any suitable components, such as one or more processors or controllers combined with computer-readable instructions provided on one or more memories. Note that the order of the operations of signal flow diagram 110 does not necessarily indicate their processing or execution order.

[0165] In signal flow diagram 110, network node 92 indicates the frequency offset of the transmit mask before the boost-limited RB allocation is determined.

[0166] In operation 112, network node 92 indicates configuration information to the UE, such as indicating that pi / 2 BPSK-based modulation should be used.

[0167] In operation 113, network node 92 indicates the frequency of the transmit mask used to determine the MPR / lift-limited RB allocation.

[0168] In operation 114, network node 92 indicates to the UE parameters for determining the MPR applied to the determined lift-limited RB allocation (i.e., the RB allocation calculated according to the set of equations). These parameters may include... MPR value; or • The incremental value of MPR relative to the RB allocation region to which it belongs in the specification; or The UE can use this to derive the applicable MPR transmit mask limit.

[0169] Alternatively, the parameters used to determine the MPR applied to the determined boost-limited RB allocation are predefined in the specification.

[0170] In operation 115, after receiving the configuration based on pi / 2-BPSK modulation, UE 91 determines the boost-limited RB allocation. Alternatively, after the gNB sends scheduling information including the configuration of a specific range of RB allocations, there may be a separate indication from the gNB to the UE to trigger the determination of the boost-limited RB allocation. In this way, the UE can save UE computing resources by only needing to compute and store a subset of the boost-limited RBs in memory.

[0171] In operation 116, network node 92 sends scheduling information (e.g., DCI) to UE 91.

[0172] If the configured allocation is an enhanced restricted RB allocation, then UE 91 determines (Operation 117) the Tx power according to the indicated parameters or standard specifications. The UE configures the Tx power accordingly.

[0173] At operation 118, PUSCH is transmitted from the UE to the network node using the transmit power set in operation 117.

[0174] Figure 11 This is a signal flow diagram according to an example embodiment, generally indicated by reference numeral 120. Signal flow diagram 120 illustrates messages sent between UE 91 and network node 92 in an example embodiment, and operations performed at the UE and network node.

[0175] The operations of signal flow diagram 120 can be performed by hardware, software, firmware, or a combination thereof. Operation 120 can be performed by one or more components, which are any suitable components, such as one or more processors or controllers combined with computer-readable instructions provided on one or more memories. Note that the order of the operations of signal flow diagram 120 does not necessarily indicate their processing or execution order.

[0176] In signal flow diagram 120, network node 92 indicates the frequency offset of the transmit mask only when configuring the UE for RB allocations that belong to a certain range of RB allocations (which may consist of boost-limited RB allocations). This saves UE computational resources because the UE does not need to determine and store information on all boost-limited RB allocations.

[0177] In operation 122, network node 92 indicates configuration information, such as an indication to use pi / 2 BPSK-based modulation.

[0178] In operation 123, network node 92 sends scheduling information (DCI) that includes a configuration for promoting restricted RB allocations.

[0179] If the configured allocation has a range of RB allocations (which may consist of boost-limited RB allocations), the network node indicates (in operation 124) the frequency of the transmit mask used to determine the boost-limited RB allocation.

[0180] Network node indications (in operation 125) are used to determine the parameters of the MPR applied to the determined lift-limited RB allocation: MPR value; or • The incremental value of MPR relative to the RB allocation region to which it belongs in the specification; or The UE can use this to derive the applicable MPR transmit mask limit.

[0181] Alternatively, the parameters used to determine the MPR applied to the determined boost-limited RB allocation are predefined in the specification.

[0182] In operation 126, after receiving information about the transmit mask and / or parameters for determining the MPR applied to the determined lift-limited RB allocation, UE 91 determines the lift-limited RB allocation.

[0183] In operation 126, the UE also determines the Tx power according to the indicated parameters or standard specifications, and the UE configures the Tx power accordingly.

[0184] At operation 128, PUSCH is transmitted from the UE to the network node using the transmit power set in operation 126.

[0185] In the various embodiments described herein, it is generally assumed that both the relevant network node and the relevant UE are aware of the formulas described above for determining the boost-limited RB allocation. For example, these formulas may be defined by relevant standard specifications. In some example embodiments, the network node may provide the corresponding UE with the parameters required for the calculation, as well as methods or information for determining the MPR value applied to the calculation of the boost-limited RB allocation.

[0186] In signal flow diagrams 110 and 120, the configuration of boost-limited RB allocation depends on the frequency offset of the transmit mask, because the limiting RF requirement may not always be SEM, but another. Therefore, the UE needs to know this frequency information to determine whether the scheduled RB allocation is boost-limited, thereby determining the associated transmit power. The difference between signal flow diagrams 120 and 130 is that the UE is instructed on the frequency offset of the transmit mask to determine the boost-limited RB.

[0187] Figure 12 A block diagram of apparatus 300 is shown by way of example. For example, apparatus 300 includes at least one processor 312 and at least one memory 314 storing instructions 315, which, when executed by the at least one processor, cause apparatus 300 to perform at least one or more methods disclosed herein and any embodiments thereof. In one example, at least one memory and instructions (e.g., computer program code, software) are configured, together with at least one processor, to cause apparatus 300 to perform one or more methods disclosed herein and any embodiments thereof.

[0188] Processor 312 may include, or be configured as, one or more circuit systems configured to perform various stages of the methods according to the exemplary embodiments described herein. As used herein, the term “circuit system” may refer to one or more or all of the following: (a) a purely hardware circuit implementation, such as an implementation solely in analog and / or digital circuitry; and (b) a combination of hardware circuitry and software, such as, where applicable: (i) a combination of (multiple) analog and / or digital hardware circuitry with software / firmware; and (ii) any portion of (multiple) hardware processors (including (multiple) digital signal processors), software, and (multiple) memories having software, which work together to enable a device (such as a user equipment) to perform various functions; and (c) (multiple) hardware circuitry and / or (multiple) processors that require software (e.g., firmware) to operate, such as (multiple) microprocessors or portions thereof, but where the software may be absent when it is not required to operate. This definition of circuit system applies to all uses of the term in this application, including in any claim. As another example, as used in this application, the term "circuit system" also encompasses only the implementation of hardware circuitry or a processor (or multiple processors) or a portion thereof, and its accompanying software and / or firmware. For example, if applicable to a particular claim, the term "circuit system" also encompasses baseband integrated circuits or processor integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices, or other computing or network devices.

[0189] The memory 314 can be implemented using any suitable data storage technology. The memory may include a database for storing data. The memory 314 may be at least partially located outside the device 300, but may be accessed by the device 300.

[0190] Instruction 315 may be included on a computer-readable medium or a non-transitory computer-readable medium (such as...). Figure 13 The non-transient medium 365 is shown. The term non-transient as used herein refers to a limitation on the medium itself (i.e., tangible, not signaling), rather than a limitation on the persistence of data storage (e.g., random access memory RAM versus read-only memory ROM).

[0191] For example, device 300 is a terminal device, such as the UE in the previous figures. As another example, the device is included in such a terminal device, for example, as a chipset configured to control the terminal device. Device 300 can be made or configured to at least perform Figure 4 The method and / or any one or more of the above embodiments.

[0192] As another example, device 300 is a network node. In another embodiment, the device is included in such a network node, for example, as a chipset configured to control a network node. Device 300 can be made or configured to perform any one or more embodiments described in the embodiments.

[0193] The device may include one or more entities of any protocol layer, such as a MAC entity, RRC entity, RLC entity, PDCP entity, or PHY entity.

[0194] Device 300 includes a wireless interface 316. The wireless interface 316 can provide communication capabilities to device 300. The wireless interface 316 may include a receiver configured to receive information according to at least one cellular or non-cellular standard. The wireless interface 316 may include a transmitter configured to transmit information according to at least one cellular or non-cellular standard. The receiver may include more than one receiver. The transmitter may include more than one transmitter. The wireless interface 316 may include a transceiver configured to receive and transmit information according to at least one cellular or non-cellular standard. The transceiver may include more than one transceiver.

[0195] Device 300 may include a user interface 318, which includes at least one of, for example, a keypad, microphone, touch display, monitor, speaker, etc. User interface 318 can be used to control the device by a user. User interface 318 may be external to device 300. For example, device 300 may be connected to another device, such as a computer, via a wireless or wired connection, and device 300 may be controlled by a user via the computer.

[0196] In one embodiment, at least some of the processes described herein may be performed by means including components for performing at least some of the processes. Components for performing the method steps disclosed herein may include software and / or hardware components of means 300. For example, at least one processor 312, memory 314, and computer program code form components for performing one or more methods disclosed herein and any embodiments thereof. As used herein, the term “component” shall be interpreted in the singular, i.e., meaning a single element; or in the plural, i.e., meaning a combination of single elements. Therefore, the term “component for [performing A, B, C]” shall be interpreted to encompass means in which only one component is used to perform A, B, and C, or means in which separate components are used to perform A, B, and C, or means in which partially or completely overlapping components are used to perform A, B, and C. Furthermore, the terms “component for performing A, component for performing B, and component for performing C” should be interpreted as covering an apparatus in which only one component is used to perform A, B, and C, or an apparatus in which a single component is used to perform A, B, and C, or an apparatus in which partially or completely overlapping components are used to perform A, B, and C.

Claims

1. A user equipment (UE) for a mobile communication system, the UE comprising: At least one processor; as well as At least one memory storing instructions, which, when executed by the at least one processor, cause the UE to at least: Whether a resource block (RB) allocation for a radio signal waveform is a lift-limited RB allocation is determined based on the following: The first parameter includes the maximum number of redundancies N_RB in the channel bandwidth used for communication between the UE and the network node in the mobile communication system; The second parameter includes a guard band parameter based on the guard band GB_U on the upper edge of the UE channel bandwidth or the guard band GB_L on the lower edge of the UE channel bandwidth. The third parameter includes the maximum frequency offset starting from the lower edge of the UE channel bandwidth of the spectrum transmit mask SEM that limits the power boost capability. Or the maximum frequency offset starting from the upper edge of the UE channel bandwidth of the SEM. ; as well as The fourth parameter includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped. as well as The transmission power for the RB allocation is determined based on whether the RB allocation is a boost-limited RB allocation.

2. The UE according to claim 1, wherein the RB allocation is defined by the index RB_start of the first RB in the RB allocation and the number of RBs in the RB allocation LCRB.

3. The UE of claim 2, wherein the determination includes determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

4. The UE according to claim 2 or claim 3, wherein the determination includes determining whether the following conditions are met: BW RB It is the bandwidth of each RB; or The determination mentioned above includes determining whether the following conditions are met: BW RB It is the bandwidth of each RB; or The determination mentioned above includes determining whether the following conditions are met: BW RB That is the bandwidth of each RB.

5. The UE according to any one of claims 1 to 3, wherein determining the transmission power allocated to the RB comprises: Determine parameters associated with the transmission power, wherein the parameters include at least one of the following allocated to the RB: power boost, maximum power reduction (MPR), power boost offset, or MPR offset; and The parameters associated with the transmission power are specified in the standard or received from the network node.

6. The UE of claim 5, wherein the instruction, when executed by the at least one processor, further causes the UE to indicate the determined parameters to the network node.

7. The UE according to any one of claims 1 to 3, wherein the instruction, when executed by the at least one processor, further causes the UE to receive configuration information from the network node, wherein the configuration information includes the configuration of the modulation and waveform of the radio signal.

8. The UE of claim 7, wherein the configured radio signal waveform is a single-carrier waveform with phase-rotation phase-shift keying modulation, and wherein the determination is in response to the configuration of the single-carrier waveform with phase-rotation phase-shift keying modulation.

9. The UE according to any one of claims 1 to 3, wherein the instructions, when executed by the at least one processor, further cause the UE to at least: Receive an indication for determining whether the RB allocation is a promotion-limited RB allocation, wherein the determination is in response to the received indication; or When the instructions are executed by the at least one processor, the UE also causes the UE to at least: Send an indication to the network node whether additional power reduction is needed to improve the limited RB allocation; or When the instructions are executed by the at least one processor, the UE also causes the UE to at least: Send a request to the network node to not configure a boost-restricted RB allocation.

10. A method for communication, comprising: Whether a resource block (RB) allocation for a radio signal waveform is a lift-limited RB allocation is determined based on the following: The first parameter includes the maximum number of redundancies (RBs) N_RB in the channel bandwidth used for communication between the UE and the network node in the mobile communication system; The second parameter includes a guard band parameter based on the guard band GB_U on the upper edge of the UE channel bandwidth or the guard band GB_L on the lower edge of the UE channel bandwidth. The third parameter includes the maximum frequency offset starting from the lower edge of the UE channel bandwidth of the spectrum transmit mask SEM that limits the power boost capability. Or the maximum frequency offset starting from the upper edge of the UE channel bandwidth of the SEM. ; as well as The fourth parameter includes a spectrum shaping parameter %SS, which is based on the percentage of the UE channel bandwidth that is shaped. The method further includes: The transmission power for the RB allocation is determined based on whether the RB allocation is a boost-limited RB allocation.

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