Method and apparatus for determining maximum power reduction for discontinuous resource allocation

Abstract

The present invention relates to a method and apparatus for determining a maximum power reduction for a non-contiguous resource allocation. An apparatus (400) includes a processor (405) that identifies (805) a received non-contiguous resource allocation (230, 235) and determines (810) a maximum power reduction ("MPR") for the non-contiguous resource allocation based on whether the fraction of resource blocks (225) punctured from a minimum contained contiguous allocation (240) ("SCCA") is less than a threshold. One way to determine the MPR for a non-contiguous allocation is to use a contiguous MPR when the non-contiguous allocation is an almost contiguous allocation. Here, it is assumed that the number of punctured RBs within an otherwise contiguous allocation is limited so that a normal MPR is sufficient. The apparatus (400) includes a transceiver (425) that transmits (815) an uplink signal on the non-contiguous resource allocation using the determined maximum power reduction.

Description

[0001] This application is a divisional application of the application which entered the Chinese national phase on July 15, 2020, with PCT application number PCT / IB2019 / 000081, international application date January 22, 2019, Chinese application number 201980008530.1, and invention name “Method and apparatus for determining maximum power reduction for non-continuous resource allocation”.

[0002] CROSS-REFERENCE TO RELATED APPLICATIONS

[0003] This application claims priority to U.S. Provisional Patent Application No. 62 / 619,993, filed on January 22, 2018, for Colin Frank, entitled “MAXIMUM POWERREDUCTION FOR NON-CONTIGUOUS ALLOCATIONS,” the entire contents of which are incorporated herein by reference. Technical Field

[0004] The subject matter disclosed herein relates generally to wireless communications and, more particularly, to determining a maximum power reduction for non-contiguous radio resource allocation. Background Art

[0005] The following abbreviations are defined herein, at least some of which are referenced in the following description.

[0006] The following abbreviations are defined herein, at least some of which are referenced in the following description: 3rd Generation Partnership Project ("3GPP"), 5th Generation Core ("5GC"), Access and Mobility Management Function ("AMF"), Access Point Name ("APN"), Access Stratum ("AS"), Adjacent Channel Leakage Rate ("ACLR"), Bandwidth Adaptation ("BA"), Bandwidth Part ("BWP"), Beam Failure Detection ("BFD"), Beam Failure Recovery Request ("BFRR"), Binary Phase Shift Keying ("BPSK"), Buffer Status Report ("BSR"), Block Error Rate ("BLER"), Carrier Aggregation ("CA"), Cell-Specific Radio Network Temporary Identifier (CSNTI) "C-RNTI"), Clear Channel Assessment ("CCA"), Cyclic Prefix ("CP"), Common Search Space ("C-SS"), Control Element ("CE"), Cyclic Redundancy Check ("CRC"), Channel State Information ("CSI"), Common Search Space ("CSS"), Data Radio Bearer ("DRB", e.g., carrying user plane data), Demodulation Reference Signal ("DM-RS"), Discontinuous Reception ("DRX"), Discrete Fourier Transform Spreading ("DFTS"), Downlink Control Information ("DCI"), Downlink ("DL"), Downlink Pilot Time Slot ("DwPTS"), Enhanced Clear Channel Assessment ("eCCA") ”), enhanced Grant Assisted Access (“eLAA”), Enhanced Mobile Broadband (“eMBB”), Evolved Node B (“eNB”), Evolved Packet Core (“EPC”), Evolved UMTS Terrestrial Radio Access Network (“E-UTRAN”), Frame-based Equipment (“FBE”), Frequency Division Duplex (“FDD”), Frequency Division Multiple Access (“FDMA”), Frequency Division Orthogonal Cover Codes (“FD-OCC”), Guard Period (“GP”), General Packet Radio Service (“GPRS”), Global System for Mobile Communications (“GSM”), Hybrid Automatic Repeat Request (“HARQ”), Internet of Things (“IoT”), Grant Assisted Access (“LAA”), Load-based equipment ("LBE"), listen-before-talk ("LBT"), logical channel ("LCH"), long term evolution ("LTE"), master information block ("MIB"), multiple access ("MA"), medium access control ("MAC"), master cell group ("MCG"), modulation and coding scheme ("MCS"), machine type communication ("MTC"), mobility management entity ("MME"), multiple-input multiple-output ("MIMO"), multi-user shared access ("MUSA"), narrowband ("NB"), next generation (e.g., 5G) Node-B ("gNB"), next generation radio access network ("NG-RAN"), new radio ("NR"), e.g.,5G Radio Access), New Data Indicator ("NDI"), Non-Orthogonal Multiple Access ("NOMA"), Orthogonal Frequency Division Multiplexing ("OFDM"), Packet Data Convergence Protocol ("PDCP"), Primary Cell ("PCell"), Physical Broadcast Channel ("PBCH"), Packet Data Network ("PDN"), Protocol Data Unit ("PDU"), Physical Downlink Control Channel ("PDCCH"), Physical Downlink Shared Channel ("PDSCH"), Pattern Division Multiple Access ("PDMA"), Physical Hybrid ARQ Indicator Channel ("PHICH"), Physical Random Access Channel ("PRACH"), Physical Resource Block ("PRB"), Physical Uplink Link Control Channel ("PUCCH"), Physical Uplink Shared Channel ("PUSCH"), Quality of Service ("QoS"), Quadrature Phase Shift Keying ("QPSK"), Radio Link Control ("RLC"), Radio Link Failure ("RLF"), Radio Link Monitoring ("RLM"), Radio Resource Control ("RRC"), Random Access Procedure ("RACH"), Random Access Response ("RAR"), Radio Network Temporary Identifier ("RNTI"), Reference Signal ("RS"), Reference Signal Received Power ("RSRP"), Remaining Minimum System Information ("RMSI"), Resource Block Assignment ("RBA"), Resource Extended Multiple Access ("R SMA), round trip time (“RTT”), reception (“RX”), sparse code multiple access (“SCMA”), scheduling request (“SR”), signaling radio bearer (“SRB”, e.g., carrying control plane data), single carrier frequency division multiple access (“SC-FDMA”), secondary cell (“SCell”), secondary cell group (“SCG”), shared channel (“SCH”), signal to interference plus noise ratio (“SINR”), serving gateway (“SGW”), service data unit (“SDU”), sequence number (“SN”), session management function (“SMF”), system information (“SI”), system information block (“SIB”), synchronization signal (“SS”), Transport block (“TB”), transport block size (“TBS”), time division duplex (“TDD”), time division multiplexing (“TDM”), time division orthogonal cover code (“TD-OCC”), transmission time interval (“TTI”), transmission (“TX”), uplink control information (“UCI”), user entity / equipment (mobile terminal) (“UE”), uplink (“UL”), user plane (“UP”), Universal Mobile Telecommunications System (“UMTS”), uplink pilot time slot (“UpPTS”), ultra-reliable and low-latency communications (“URLLC”), wireless local area network (“WLAN”), and world-wide interoperability for microwave access (“WiMAX”). As used herein,"HARQ-ACK" can collectively represent positive acknowledgement ("ACK") and negative acknowledgement ("NACK"). ACK means that the TB is received correctly, while NACK (or NAK) means that the TB is received incorrectly.

[0007] In LTE, a maximum power reduction for UE DFT-s-OFDM uplink transmissions is defined to enable the UE to meet emission requirements such as the spectrum emission mask (SEM), adjacent channel leakage requirements UTRA ACLR1, UTRA ACLR2, E-UTRA ACLR, NR ACLR, and spurious emission requirements. When additional emission restrictions are signaled using network signaling (NS), an additional maximum power reduction (A-MPR) is allowed. The MPR for the UE is defined to enable the UE uplink transmission to meet the SEM, UTRA_ACLR1, UTRA_ACLR2, E-UTRA ACLR, NR ACLR, and spurious emission requirements. Summary of the Invention

[0008] A method for determining a maximum power reduction for non-contiguous radio resource allocation is disclosed. Apparatus and systems also perform the functions of the method. The method may also be embodied in one or more computer program products containing executable code.

[0009] In one embodiment, a first method for determining a maximum power reduction for a non-contiguous radio resource allocation includes: receiving a non-contiguous resource allocation at a remote unit in a wireless communication system; and determining a maximum power reduction for the non-contiguous resource allocation based on whether a fraction of resource blocks punctured from a minimum inclusive contiguous allocation ("SCCA") is less than a threshold. The method includes transmitting an uplink signal on the non-contiguous resource allocation using the determined maximum power reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] A more particular description of the embodiments briefly described above will be rendered by reference to specific embodiments illustrated in the accompanying drawings. Understanding that these drawings depict only some embodiments and are therefore not to be considered limiting of scope, the embodiments will be described and explained with additional specificity and detail through use of the accompanying drawings, in which:

[0011] Figure 1 is a block diagram illustrating one embodiment of a wireless communication system for determining a maximum power reduction for non-contiguous radio resource allocation;

[0012] Figure 2 is a block diagram illustrating one embodiment of a network architecture for determining a maximum power reduction for non-contiguous radio resource allocation;

[0013] Figure 3is a block diagram illustrating one embodiment of allocating bandwidth portions to multiple UEs;

[0014] Figure 4 is a diagram illustrating one embodiment of a user equipment apparatus for determining a maximum power reduction for non-contiguous radio resource allocation;

[0015] Figure 5 is a diagram illustrating one embodiment of a process for determining whether an MPR is defined for non-contiguous allocation;

[0016] Figure 6 is a table illustrating one embodiment of A-MPR requirements for network signaling of "NS_07";

[0017] Figure 7 is a table illustrating one embodiment of A-MPR requirements for network signaling of "NS_04"; and

[0018] Figure 8 is a flow chart illustrating one embodiment of a method for determining a maximum power reduction for non-contiguous radio resource allocation. DETAILED DESCRIPTION

[0019] As will be appreciated by those skilled in the art, aspects of the embodiments may be embodied as systems, devices, methods, or program products. Thus, the embodiments may take the form of entirely hardware embodiments, entirely software embodiments (including firmware, resident software, microcode, etc.), or embodiments combining software and hardware aspects.

[0020] For example, the disclosed embodiments may be implemented as hardware circuits comprising custom very large scale integration ("VLSI") circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. The disclosed embodiments may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, etc. As another example, the disclosed embodiments may include one or more physical or logical blocks of executable code, which may be organized as objects, procedures, or functions, for example.

[0021] Furthermore, embodiments may take the form of a program product embodied in one or more computer-readable storage devices stored in machine-readable code, computer-readable code, and / or program code, hereinafter referred to as code. The storage device may be tangible, non-transitory, and / or non-transmissive. The storage device may not embody signals. In certain embodiments, the storage device may employ only signals for accessing the code.

[0022] Any combination of one or more computer-readable media may be utilized. The computer-readable medium may be a computer-readable storage medium. The computer-readable storage medium may be a storage device that stores code. The storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.

[0023] More specific examples of storage devices (a non-exhaustive list) would include the following: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory ("RAM"), read-only memory ("ROM"), erasable programmable read-only memory ("EPROM" or flash memory), a portable compact disc read-only memory ("CD-ROM"), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer-readable storage medium may be any tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.

[0024] References in this specification to "one embodiment," "an embodiment," or similar language mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment. Therefore, unless expressly stated otherwise, throughout this specification, appearances of the phrases "in one embodiment," "in an embodiment," and similar language may, but do not necessarily, all refer to the same embodiment, but rather to "one or more but not all embodiments." Unless expressly stated otherwise, the terms "comprise," "comprising," "having," and variations thereof mean "including but not limited to." Unless expressly stated otherwise, a list of enumerated items does not imply that any or all items are mutually exclusive. Unless expressly stated otherwise, the terms "a," "an," and "the" also refer to "one or more."

[0025] In addition, the features, structures or characteristics of the described embodiments may be combined in any appropriate manner. In the following description, many specific details are provided, such as examples of programming, software modules, user selections, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., to provide a thorough understanding of the embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of the specific details, or using other methods, components, materials, etc. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring some aspects of the embodiments.

[0026] Aspects of the embodiments are described below with reference to schematic flow charts and / or schematic block diagrams of methods, apparatuses, systems, and program products according to the embodiments. It will be understood that each block in the schematic flow charts and / or schematic block diagrams, as well as combinations of blocks in the schematic flow charts and / or schematic block diagrams, can be implemented by code. This code can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to generate a machine, so that instructions executed by the processor of the computer or other programmable data processing device create a means for implementing the functions / behaviors specified in the schematic flow charts and / or schematic block diagrams.

[0027] The code may also be stored in a storage device that can instruct a computer, other programmable data processing apparatus, or other device to operate in a specific manner so that the instructions stored in the storage device produce an article of manufacture including instructions that implement the functions / actions specified in the schematic flowchart and / or schematic block diagram.

[0028] The code may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable apparatus, or other device to produce a computer-implemented process, so that the code executed on the computer or other programmable apparatus provides a process for implementing the functions / behaviors specified in the schematic flowcharts and / or schematic block diagrams.

[0029] The schematic flow charts and / or schematic block diagrams in the accompanying drawings illustrate possible implementations of the architecture, functions, and operations of the apparatus, system, method, and program product according to different embodiments. In this regard, each block in the schematic flow charts and / or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing a specified logical function.

[0030] It should also be noted that in some alternative embodiments, the functions noted in the blocks may not occur in the order noted in the drawings. For example, two blocks shown in succession may actually be executed substantially simultaneously, or the blocks may sometimes be executed in the reverse order, depending on the functions involved. It is contemplated that other steps and methods are equivalent in function, logic, or effect to one or more blocks or portions thereof of the illustrated drawings.

[0031] The description of an element in each figure may refer to an element in the previous figure. The same numerals refer to the same elements in all figures, including alternative embodiments of the same elements.

[0032] As mentioned above, 5G NR supports BWP, which is a set of contiguous PRBs whose aggregate bandwidth is less than or equal to the maximum UE bandwidth capability, but at least as large as the bandwidth of the SS / PBCH block. The BWPs of different UEs can overlap completely or partially, and it is up to the network entity, such as the gNodeB ("gNB") or other suitable RAN node, to coordinate the scheduling of the BWPs of different UEs. The configuration parameters of the BWP may include a parameter set (e.g., subcarrier spacing), a frequency location (e.g., center frequency), and a bandwidth (e.g., the number of PRBs). A given BWP may or may not contain an SS / PBCH block.

[0033] Multiple SS / PBCH blocks may be transmitted within the bandwidth of a carrier. However, from the UE's perspective, a cell is associated with a single SS / PBCH block in the frequency domain. In addition, a cell-defined SS / PBCH block has associated basic system information blocks, such as system information block type 1 ("SIB1") and / or system information block type 2 ("SIB2"), which include so-called "remaining minimum system information (RMSI)", system information that is not included in the master information block (MIB) but is necessary for accessing the cell. Multiple cell-defined SS / PBCH blocks associated with a common NE and transmitted in the bandwidth of a carrier may or may not have common system information.

[0034] Dynamic scheduling may be used to send system information ("SI") messages, each of which includes at least one system information block, within periodically occurring time domain windows (referred to as SI windows). Each SI message is associated with an SI window, and the SI windows of different SI messages may or may not overlap. The SI window length may be configurable and may or may not be common to all SI messages. Within a given SI window, the corresponding SI message may be sent multiple times. The UE may obtain detailed time and frequency domain scheduling and other information by decoding the physical downlink control channel ("PDCCH") addressed by the system information-radio network temporary identifier ("SI-RNTI"). For a secondary cell ("SCell"), the network entity provides the required SI to the UE through dedicated signaling. When the relevant SI changes, the network entity releases and adds back the relevant SCell through the updated SI for the UE. However, the signaling of the updated SI via the cell release and add procedure may not be suitable for the primary cell ("PCell") or the primary secondary cell ("PSCell").

[0035] Disclosed herein are methods, apparatus, systems, and computer program products for performing (re)acquisition of system information (“SI”) within a wideband carrier, where a wideband carrier refers to a carrier that includes one or more cell-defined SS / PBCH blocks associated with a common network entity (e.g., a base station).

[0036] Figure 1 A wireless communication system 100 is depicted for determining a maximum power reduction for non-contiguous radio resource allocation according to an embodiment of the present disclosure. In one embodiment, the wireless communication system 100 includes at least one remote unit 105, a radio access network ("RAN") 120, and a mobile core network 140. The RAN 120 and the mobile core network 140 form a mobile communication network. The RAN 120 may be comprised of a base station unit 110 with which the remote unit 105 communicates using a wireless communication link 115. Even in the case of Figure 1 A specific number of remote units 105, base station units 110, wireless communication links 115, RAN 120, and mobile core network 140 are depicted in the figure, but those skilled in the art will recognize that any number of remote units 105, base station units 110, wireless communication links 115, RAN 120, and mobile core network 140 may be included in the wireless communication system 100.

[0037] In one embodiment, the wireless communication system 100 complies with the 5G system specified in the 3GPP specifications. However, more generally, the wireless communication system 100 may implement some other open or proprietary communication network, such as LTE or WiMAX, among other networks. The present disclosure is not intended to be limited to the implementation of any particular wireless communication system architecture or protocol.

[0038] In one embodiment, the remote unit 105 may include a computing device such as a desktop computer, a laptop computer, a personal digital assistant ("PDA"), a tablet computer, a smartphone, a smart TV (e.g., a TV connected to the Internet), a smart device (e.g., a device connected to the Internet), a set-top box, a game console, a security system (including a security camera), an in-vehicle computer, a network device (e.g., a router, a switch, a modem), etc. In some embodiments, the remote unit 105 includes a wearable device such as a smart watch, a fitness band, an optical head-mounted display, etc. Furthermore, the remote unit 105 may be referred to as a UE, a subscriber unit, a mobile device, a mobile station, a user, a terminal, a mobile terminal, a fixed terminal, a subscriber station, a user terminal, a wireless transmit / receive unit ("WTRU"), a device, or other terminology used in the art.

[0039] The remote unit 105 can communicate directly with one or more base stations 110 in the RAN 120 via uplink ("UL") and downlink ("DL") communication signals. In addition, the UL and DL communication signals can be carried over wireless communication links 115. Here, the RAN 120 is an intermediate network that provides access to the mobile core network 140 for the remote unit 105. Note that the UL transmissions 125 by the remote unit 105 can be subject to maximum power reduction to comply with various transmission requirements. Here, transmission requirements vary from one jurisdiction to another.

[0040] In some embodiments, remote unit 105 communicates with application server 151 via a network connection with mobile core network 140. For example, application 107 in remote unit 105 (e.g., a web browser, a media client, a phone / VoIP application) can trigger remote unit 105 to establish a PDU session (or other data connection) with mobile core network 140 via RAN 120. Mobile core network 140 then relays traffic between remote unit 105 and application server 151 in packet data network 150 using the PDU session. Note that remote unit 105 can establish one or more PDU sessions (or other data connections) with mobile core network 140. As such, remote unit 105 can simultaneously have at least one PDU session for communicating with packet data network 150 and at least one PDU session for communicating with another data network (not shown).

[0041] The base station units 110 may be distributed over a geographic area. In some embodiments, the base station units 110 may also be referred to as access terminals, access points, base stations, base stations, node Bs, eNBs, gNBs, home node Bs, relay nodes, or by any other terminology used in the art. The base station units 110 are typically part of a radio access network ("RAN"), such as the RAN 120, which may include one or more controllers communicatively coupled to one or more respective base station units 110. These and other elements of a radio access network are not shown, but are well known to those of ordinary skill in the art. The base station units 110 are connected to the mobile core network 140 via the RAN 120.

[0042] The base unit 110 can serve multiple remote units 105 within a service area, such as a cell or cell sector, via wireless communication links 115. The base unit 110 can communicate directly with one or more remote units 105 via communication signals. Typically, the base unit 110 transmits downlink communication signals in the time, frequency, and / or spatial domains to serve the remote units 105. In addition, the downlink communication signals can be carried on the wireless communication links 115. The wireless communication links 115 can be any suitable carrier in the licensed or unlicensed radio spectrum. The wireless communication links 115 facilitate communication between one or more remote units 105 and / or one or more base units 110.

[0043] In one embodiment, mobile core network 140 is a 5G core network ("5GC") or an evolved packet core ("EPC"), which can be coupled to a packet data network 150, such as the Internet and private data networks, among other data networks. Remote units 105 can have subscriptions or other accounts with mobile core network 140. Each mobile core network 140 belongs to a single public land mobile network ("PLMN"). The present disclosure is not intended to be limited to any particular wireless communication system architecture or protocol implementation.

[0044] The mobile core network 140 includes a plurality of network functions ("NFs"). As depicted, the mobile core network 140 includes a plurality of user plane functions ("UPFs") 145. The mobile core network 140 also includes a plurality of control plane functions, including, but not limited to, an access and mobility management function ("AMF") 141, which serves the RAN 120; a session management function ("SMF") 143, and a policy control function ("PCF") 147. In certain embodiments, the mobile core network 140 may also include an authentication server function ("AUSF"), a unified data management function ("UDM") 149, a network repository function ("NRF") (used by various NFs to discover and communicate with each other via APIs), or other NFs defined for the 5GC.

[0045] Despite Figure 1 , a specific number and type of network functions are depicted in the mobile core network 140, but those skilled in the art will recognize that any number and type of network functions may be included in the mobile core network 140. Furthermore, in the case where the core network 140 is an EPC, the depicted network functions may be replaced by appropriate EPC entities such as an MME, S-GW, P-GW, HSS, etc. In some embodiments, the mobile core network 140 may include an AAA server.

[0046] In various embodiments, the mobile core network 140 supports different types of mobile data connections and different types of network slices, where each mobile data connection utilizes a specific network slice. Here, a "network slice" refers to a portion of the mobile core network 140 that is optimized for a certain type of traffic or communication service. In some embodiments, various network slices may include separate instances of network functions, such as SMF 143 and UPF 145. In some embodiments, different network slices may share some common network functions, such as AMF 141. For ease of illustration, Figure 1 The different network slices are not shown in , but their support is assumed.

[0047] Although Figure 1 Components of a 5G RAN and a 5G core network are depicted, but the described embodiments for determining maximum power reduction for non-contiguous radio resource allocation apply to other types of communication networks, including IEEE 802.11 variants, UMTS, LTE variants, CDMA 2000, Bluetooth, etc. For example, in an LTE variant, the AMF 135 may be mapped to the MME, the SMF to the control plane portion of the PGW, the UPF to the user plane portion of the STW and PGW, etc.

[0048] In general, this disclosure describes systems, methods, and apparatus for determining maximum power reduction for non-contiguous radio resource allocations, particularly in networks using CP-OFDM. As used herein, a "non-contiguous resource allocation" is defined as a resource allocation that is not a contiguous resource allocation. Furthermore, a "contiguous resource allocation" is defined as a resource allocation that is a contiguous resource block within a carrier or across contiguously aggregated carriers. Note that the definition of "contiguous resource allocation" allows for gaps between contiguously aggregated carriers due to nominal channel spacing.

[0049] For LTE, only DFT-s-OFDM waveforms are used for transmission of uplink PUSCH. However, in NR (e.g., 3GPP 5G RAT), UEs can use DFT-s-OFDM to transmit uplink signals as in LTE, or alternatively, can use cyclic prefix OFDM (CP-OFDM). To meet ACLR transmission requirements, MPR is specified for both DFT-s-OFDM and CP-OFDM.

[0050] In various embodiments, the allowed MPR is defined based on the modulation and waveform used for the UL PUSCH. Here, the waveform can be DFT-s-OFDM or CP-OFDM. Examples of modulation include: π / 2 BPSK, QPSK, 16QAM, 64QAM, and 256QAM. Note that the following parameters can be used to specify the valid RB allocation range for outer and inner RB allocations: L CRBmax , RB StartLow , RB StartHigh and RB StartInner .

[0051] These parameters can be defined as follows: L CRBmax Refers to the maximum number of RBs for a given channel bandwidth and subcarrier spacing derived from spectrum utilization. StartLow Equal to L CRB / 2, rounded down to the next integer with a floor of 1. RB StartHigh Equal to L CRBmax –RB startLow –L CRB RB StartInner Refers to the valid RB used for internal RB allocation START value.

[0052] Here, the inner RB allocation range is specified as follows: for all L rounded up to the next integer CRB ≤L CRBmax / 2, the inner RB allocation is L from each edge of the maximum RB allocation CRB / 2. For L rounded up to the next integer CRB ≤L CRBmax / 2, RB StartLow ≤RB StartInner ≤RB StartHigh Furthermore, the external RB allocation range is all allocations that are not internal RB allocations.

[0053] For current 5G systems, MPR is only defined for contiguous RB allocations. Here, MPR is a function of the waveform type (DFT-s-OFDM or CP-OFDM) and the modulation type, which can be PI / 2BPSK, QPSK, 16QAM, 64QAM, or 256QAM.

[0054] In 3GPP New Radio ("NR"), bandwidth parts consisting of a set of contiguous physical resource blocks ("PRBs") are used in 3GPP New Radio ("NR") to support at least: reduced user equipment ("UE") bandwidth ("BW") capabilities, UE BW adaptation, frequency division multiplexing ("FDM") of various parameter sets (subcarrier spacing), and the use of non-contiguous spectrum. In addition, the use of bandwidth parts allows the UE to reduce power consumption. It should be noted that bandwidth parts are UE-specific and are not limited to the channel carrier bandwidths allowed in NR, such as 5, 10, 15, 20, 25, 30, 40, 45, 50, 60, 80, 90, or 100 MHz. It should also be noted that each bandwidth part can have its own PUCCH resource, which can be used for the transmission of acknowledgments or for the transmission of channel state feedback, such as precoding matrix indicator, rank indicator, and / or channel quality information ("PMI / RI / CQI").

[0055] In some embodiments, the remote unit 105 may use maximum power reduction to meet emission requirements such as spectrum emission mask (SEM), adjacent channel leakage requirements UTRA ACLR1, UTRA ACLR2, E-UTRA ACLR, NR ACLR, and spurious emission requirements. Additional maximum power reduction (A-MPR) is permitted when additional emission restrictions are signaled using network signaling.

[0056] For example, the remote unit 105 may identify the smallest contiguous allocation that includes the non-contiguous allocation and the fraction of RBs that are punctured from the smallest included contiguous allocation, e.g., due to PUCCHs for other remote units 105. Furthermore, the remote unit 105 may identify a threshold α and determine whether the fraction of RBs that are punctured from the smallest included contiguous allocation is less than the threshold α. If the fraction is less than the threshold α, the remote unit 105 may determine an MPR for the non-contiguous allocation, wherein the MPR for the non-contiguous allocation is based on the MPR for the smallest included contiguous allocation.

[0057] Described herein is UE behavior for determining maximum power reduction for non-contiguous resource allocation, particularly for CP-OFDM allocation in a 5G wireless communication system (such as one compatible with 3GPP NR).

[0058] Figure 2A network architecture 200 for different UEs according to various embodiments of the present disclosure is depicted, including a gNB 210 (or other suitable base station) and multiple UEs, namely, a first UE ("UE1") 201, a second UE ("UE2") 203, and a third UE 205. Here, three UEs are being served in the illustrated frequency band: the first UE 201 having a narrowband allocation 211, the second UE 203 also having a narrowband allocation 213, and the third UE 205 having a wideband allocation 215.

[0059] Note that narrowband allocations 211 and 213 include long PUCCH 220 with frequency hopping. Since narrowband UEs are required to transmit on their PUCCH even without an uplink PUSCH allocation for them, it is generally not possible to allocate contiguous full-bandwidth resource blocks to the wideband third UE 205. The narrowband UE's PUCCH requirement results in punctured resources 225 in the wideband allocation 215. This puncturing results in a first contiguous portion 230 and a second contiguous portion 235 in the wideband allocation 215.

[0060] Therefore, there are two options for allocating to the third UE 205: the first option is to allocate a non-contiguous wideband allocation, where the narrowband UE PUCCH resources have been punctured from the allocation for the third UE 205; the second option is to allocate only contiguous RBs (e.g., one of the first contiguous portion 230 and the second contiguous portion 235), but this will result in a smaller bandwidth allocation. Unless a non-contiguous allowed MPR or A-MPR is defined for NR CP-OFDM, it is not possible to give a wideband UE a non-contiguous wideband allocation from which the narrowband UE PUCCH resources have been punctured. Therefore, this document discloses techniques for defining an allowed MPR for a non-contiguous allocation.

[0061] One way to define the MPR or A-MPR for a non-contiguous allocation is to use a contiguous MPR (or A-MPR) when the non-contiguous allocation is an almost contiguous allocation. Here, it is assumed that the number of punctured RBs within an otherwise contiguous allocation is limited so that a normal MPR is sufficient. As used herein, an "almost contiguous" allocation refers to an allocation in which the number of punctured RBs within the smallest included contiguous allocation is limited. A non-contiguous allocation may be determined to be an "almost contiguous" allocation if certain criteria are met, such as the ratio of punctured RBs to the number of RBs in the smallest included contiguous allocation is less than a threshold, the size (number) of punctured RBs is less than a threshold, the maximum number of contiguous punctured RBs is less than a threshold, the location of the allocation (e.g., inside or outside) is somewhere in the carrier / channel, the modulation associated with the allocation is of a certain type, the number of RBs in the smallest included contiguous allocation is within a predetermined amount of the channel bandwidth, and other criteria discussed herein.

[0062] In one embodiment, if the minimum L contains consecutive allocations CRB L that satisfies a given channel bandwidth CRB >L CRBmax / FFS and the number of untransmitted resource blocks within the minimum inclusive contiguous allocation is less than or equal to L CRB / FFS, then the CP-OFDM allocation is determined to be almost contiguous. In such an embodiment, the allowed MPR for an almost contiguous allocation is the MPR of consecutive blocks of RBs that start and end with the same RB as the almost contiguous allocation.

[0063] Above, L CRBmax Intended to mean the maximum number of RBs allowed for a given channel bandwidth. For contiguous allocations, L CRB is the number of allocated RBs. For non-contiguous allocation, L CRB Defined as the number of RBs in the minimum inclusive contiguous allocation. As used herein, a "minimum inclusive contiguous allocation" refers to a contiguous allocation that includes non-contiguous allocations. An example of a minimum inclusive contiguous allocation is shown at 240. In some embodiments, a minimum inclusive contiguous allocation ("SCCA") is a contiguous allocation that has the same start RB and end RB as a non-contiguous allocation.

[0064] Figure 3 Depicts bandwidth parts 300 for different UEs according to various embodiments of the present disclosure. Here, the bandwidth parts ("BWP") include a first BWP 305 for a first UE ("UE1"), a second BWP 310 for a second UE ("UE2"), a third BWP 315 for a third UE ("UE3"), and a fourth BWP 320 for a fourth UE ("UE4"). Note that Figure 3 This may be an oversimplification of the concept of bandwidth part. Because BWP is UE-specific, there is no need to align BWP of different UEs.

[0065] like Figure 3 As depicted in , bandwidth parts for different UEs may have different widths and the boundaries may not be aligned. In addition, some bandwidth parts may be completely contained within other bandwidth parts (e.g., BWP 310 and 320 are completely contained within BWP 305). Figure 3, it is clear that the left PUCCH regions of UE1 and UE3 overlap, causing the PUCCH resources for these two UEs to collide (PUCCH collision 330A), and a similar situation exists for the right PUCCH regions of UE2 and UE3 (PUCCH collision 330B). In one embodiment, this problem can be alleviated by over-provisioning (moving inward) the PUCCH region of, for example, UE2. The key point of this observation is to note that for a bandwidth portion, the PUCCH region may not be in the edge RBs of the bandwidth portion.

[0066] In some embodiments, in order to apply normal MPR, for a given channel bandwidth, it must be L CRB >L CRBmax In one example, for a given channel bandwidth L CRBmax / X, where the value of X is predefined in the wireless network. However, the above does not allow non-contiguous allocation of bandwidth portions that fully or partially include other bandwidth portions, as shown above.

[0067] Note that in Figure 3 In the example, the bandwidth portion of UE2 is punctured by the PUCCH region of the bandwidth portion of UE3 and UE4. Similarly, the bandwidth portion of UE3 is punctured by the PUCCH region of the bandwidth portion of UE2. Figure 3 In the more general case illustrated in , it may not be desirable to require L CRB >L CRBmax / X, as such a requirement may not allow for non-contiguous allocation of smaller bandwidth portions.

[0068] Because different transmission constraints limit the transmit power (and therefore determine the required MPR), it is generally true that a larger fraction of RBs can be punctured from contiguous RB allocations located in some parts of the 3GPP TS 38.101 table than can be punctured from contiguous RB allocations located in other parts of the 3GPP TS 38.101 table while still meeting the transmission requirements.

[0069] In various embodiments, the UE 205 may support non-contiguous MPR for CP-OFDM based on the MPR for the smallest contiguous allocation containing the non-contiguous allocation. CRB The non-continuous allocation of L CRB Indicates the number of RBs in the minimum contiguous allocation including non-contiguous allocation.

[0070] If the fraction of RBs punctured from the minimum inclusive contiguous allocation is less than a threshold α strictly less than 1, then the MPR is defined for a non-contiguous allocation. Let N RB_GAPdenotes the number of unallocated RBs (eg, the number of punctured RBs) between the allocated RBs, and let N RB_ALLOC is the number of allocated RBs. A non-contiguous allocation can be treated as an almost contiguous allocation with a defined allowed MPR if the following conditions are met:

[0071] [Equation 1]

[0072] N RB_GAP / (N RB_ALLOC +N RB_GAP )≤α

[0073] Note that the number "N RB_GAP +N RB_ALLOC " represents the number of RBs in the minimum contiguous allocation ("SCCA"). Therefore, SCCA can be defined as follows:

[0074] [Equation 2]

[0075] N SCCA =N RB_ALLOC +N RB_GAP

[0076] In some embodiments, Equation 1 applies only when the size of the SCCA is greater than a minimum amount. Here, the minimum amount can be based on the subcarrier spacing of the non-contiguous allocation. In one embodiment, the threshold α is 0.25 or less. In some embodiments, the value of α can depend on whether the minimum containing contiguous allocation is an inner allocation or an outer allocation. In some embodiments, the threshold α can depend on the modulation of the non-contiguous allocation, e.g., QPSK, 16QAM, 64QAM, or 256QAM.

[0077] In some embodiments, the value of α may depend on the center frequency F of the carrier. c In some embodiments, the value of α may depend on L CRB In some embodiments, the value of α may depend on the lowest index RB, RB START In some embodiments, the value of α may depend on the signaled value of NS.

[0078] Note that for some contiguous allocations, an MPR may not be defined for any non-contiguous allocations resulting from puncturing the contiguous allocation. For example, if the SCCA is located in certain parts of the frequency band, an MPR may not be defined for the non-contiguous allocation. In one embodiment, the MPR is defined based on the starting (e.g., lowest) or ending (e.g., highest) resource block index of the allocation.

[0079] In various embodiments, the allowed MPR for non-contiguous allocation may be increased by a value β dB relative to the allowed MPR for SCCA. Here, the value β may be related to the punctured L CRB The value of β is as large as the negative value of 10 times the base 10 logarithm of the fraction of RBs that are punctured. Here, the value of β is based on the ratio of RBs that are punctured. In some embodiments, the value of β can be defined using an upper limit function that maps the fraction of RBs that contain consecutive punctures to decibel values in steps of 0.5 dB as follows:

[0080] [Equation 3]

[0081]

[0082] Figure 4 An embodiment of a user equipment device 400 that can be used to determine a maximum power reduction for non-contiguous radio resource allocation is depicted. The user equipment device 400 can be an embodiment of a remote unit 105. In addition, the user equipment device 400 can include a processor 405, a memory 410, an input device 415, an output device 420, and a transceiver 425. In some embodiments, the input device 415 and the output device 420 are combined into a single device, such as a touch screen. In certain embodiments, the user equipment device 400 may not include any input device 415 and / or output device 420. In various embodiments, the user equipment device 400 may include one or more of the following: a processor 405, a memory 410, and a transceiver 425, and may not include an input device 415 and / or an output device 420.

[0083] In one embodiment, the processor 405 may include any known controller capable of executing computer-readable instructions and / or capable of performing logical operations. For example, the processor 405 may be a microcontroller, a microprocessor, a central processing unit ("CPU"), a graphics processing unit ("GPU"), an auxiliary processing unit, a field programmable gate array ("FPGA"), or a similar programmable controller. In some embodiments, the processor 405 executes instructions stored in the memory 410 to perform the methods and routines described herein. The processor 405 is communicatively coupled to the memory 410, the input device 415, the output device 420, and the transceiver 425.

[0084] In some embodiments, transceiver 425 receives a non-contiguous resource allocation, for example, from gNB 210 in a wireless communication system. gNB 210 may be an embodiment of base station unit 110, as described above. Furthermore, processor 405 is configured to identify the non-contiguous resource allocation. In some embodiments, the non-contiguous resource allocation includes multiple smaller contiguous resource allocations. Here, the non-contiguous resource allocation is included in a minimum containing contiguous allocation ("SCCA"), such that the SCCA is defined as the minimum set of contiguous resource blocks that includes the non-contiguous resource allocation.

[0085] Processor 405 determines a maximum power reduction for a non-contiguous resource allocation based on whether the fraction of resource blocks punctured from the SCCA is less than a threshold α. Here, the value of α may be predetermined or configured by gNB 210. In various embodiments, the allowed MPR for a non-contiguous resource allocation is based on the allowed MPR for the SCCA. In various embodiments, the SCCA is a set of contiguous resource blocks containing a non-contiguous resource allocation, where the non-contiguous resource allocation comprises multiple smaller contiguous resource allocations.

[0086] In some embodiments, determining an MPR for non-contiguous resource allocation includes selecting an allowed MPR defined for SCCA in response to a fraction of resource blocks punctured from SCCA being less than a threshold α. In further embodiments, determining a maximum power reduction for non-contiguous resource allocation includes increasing the selected maximum power reduction for SCCA by a value β. In one embodiment, the value β is a function of the fraction of resource blocks punctured from SCCA. In a further embodiment, the value β is the negative of 10 times the base-10 logarithm of the fraction of resource blocks punctured from SCCA.

[0087] However, if the fraction of resource blocks punctured from SCCA is not less than the threshold, processor 405 may determine that no MPR is defined for the non-contiguous allocation. Alternatively, if the fraction of resource blocks punctured from SCCA is not less than the threshold, processor 405 may determine that the MPR for the non-contiguous allocation does not depend on the allowed MPR for SCCA. In such an embodiment, the allowed MPR for the non-contiguous allocation may be determined using a lookup table (via network signaling), etc.

[0088] In some embodiments, the transceiver 425 receives an indication of an additional transmission requirement from the wireless communication system, thereby allowing an additional MPR (e.g., A-MPR). Here, the maximum power reduction (e.g., total MPR) for non-contiguous resource allocation is also based on the indication. In various embodiments, the indication of the additional transmission requirement is received via NS signaling, such as by the gNB 210 sending an NS value.

[0089] In some embodiments, the threshold α is based on the lowest resource block index of the allocation. In some embodiments, the threshold α is based on the number of resource blocks in the SCCA. In some embodiments, the threshold α is based on the center frequency of the carrier to which the non-contiguous resource allocation belongs. In some embodiments, the threshold α is based on the modulation of the non-contiguous resource allocation.

[0090] In addition, the processor 405 controls the transceiver 425 to transmit the uplink signal on the non-contiguous resource allocation using the determined maximum power reduction. In some embodiments, transmitting the uplink signal on the non-contiguous resource allocation using the maximum power reduction includes transmitting the uplink signal using a cyclic prefix orthogonal frequency division multiplexing ("CP-OFDM") waveform.

[0091] In one embodiment, memory 410 is a computer-readable storage medium. In some embodiments, memory 410 includes volatile computer storage media. For example, memory 410 may include RAM, including dynamic RAM ("DRAM"), synchronous dynamic RAM ("SDRAM"), and / or static RAM ("SRAM"). In some embodiments, memory 410 includes non-volatile computer storage media. For example, memory 410 may include a hard drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 410 includes both volatile and non-volatile computer storage media.

[0092] In some embodiments, the memory 410 stores data related to determining a maximum power reduction for non-contiguous radio resource allocations. For example, the memory 410 may store one or more MPR tables, resource allocations, etc. In some embodiments, the memory 410 also stores program code and related data, such as an operating system or other controller algorithms operating on the remote unit 105.

[0093] In one embodiment, input device 415 may include any known computer input device, including a touch panel, buttons, keyboard, stylus, microphone, etc. In some embodiments, input device 415 may be integrated with output device 420, for example, as a touch screen or similar touch-sensitive display. In some embodiments, input device 415 includes a touch screen, so that text can be entered using a virtual keyboard displayed on the touch screen and / or by handwriting on the touch screen. In some embodiments, input device 415 includes two or more different devices, such as a keyboard and a touch panel.

[0094] In one embodiment, the output device 420 is designed to output visual, auditory, and / or tactile signals. In some embodiments, the output device 420 includes an electronically controlled display or display device capable of outputting visual data to a user. For example, the output device 420 may include, but is not limited to, an LCD display, an LED display, an OLED display, a projector, or a similar display device capable of outputting images, text, and the like to a user. As another non-limiting example, the output device 420 may include a wearable display that is separate from the rest of the user device apparatus 400 but communicatively coupled thereto, such as a smart watch, smart glasses, a head-up display, and the like. In addition, the output device 420 may be a component of a smartphone, a personal digital assistant, a television, a desktop computer, a notebook (laptop) computer, a personal computer, a vehicle dashboard, and the like.

[0095] In certain embodiments, output device 420 includes one or more speakers for generating sound. For example, output device 420 can generate an auditory alarm or notification (e.g., a beep or prompt tone). In some embodiments, output device 420 includes one or more tactile devices for generating vibration, motion, or other tactile feedback. In some embodiments, all or part of output device 420 can be integrated with input device 415. For example, input device 415 and output device 420 can form a touch screen or similar touch-sensitive display. In other embodiments, output device 420 can be located near input device 415.

[0096] The transceiver 425 includes at least one transmitter 430 and at least one receiver 435. The one or more transmitters 430 can be used to provide UL communication signals, such as the AUL transmissions described herein, to the base station unit 110. Similarly, the one or more receivers 435 can be used to receive DL communication signals from the base station unit 110, as described herein. Although only one transmitter 430 and one receiver 435 are shown, the user equipment device 400 can have any suitable number of transmitters 430 and receivers 435. In addition, the transmitter 425 and the receiver 430 can be any suitable type of transmitter and receiver. In one embodiment, the transceiver 425 includes a first transmitter / receiver pair for communicating with a mobile communication network on a licensed radio spectrum and a second transmitter / receiver pair for communicating with a mobile communication network on an unlicensed radio spectrum.

[0097] Figure 5A process 500 for determining a threshold value α for a non-contiguous allocation is depicted. The process 500 begins by identifying 505 a minimum contained contiguous allocation ("SCCA") that contains the non-contiguous allocation. In some embodiments, the process 500 includes determining 510 whether the SCCA is an inner allocation or an outer allocation. Such a determination can be based on the lowest RB index of the SCCA. In some embodiments, the process 500 includes determining 515 a waveform type and a modulation type for the non-contiguous allocation. In some embodiments, the process 500 includes determining 520 a L for the non-contiguous allocation. CRB , carrier center frequency (F C ) and RB START Value. Additionally, in some embodiments, process 500 includes determining 525 whether the network signals additional emission restrictions. Based on one or more of the above factors, process 500 calculates 530 a value for α. Process 500 ends.

[0098] Figure 6 An example of a table 600 depicting additional maximum power reduction ("A-MPR") for non-contiguous resource allocations is shown. Here, the A-MPR value is used for situations where additional emission limitations exist in addition to the conventional limitations on the spectrum emission mask (SEM), adjacent channel leakage ratio (ACLR) limit, in-band emission limit, and spurious emission limit. For the case of additional emission limitations, the gNB 210 sends an indication of the additional emission limitations (e.g., an indication of additional power reduction) to the UE. These additional limitations may be indicated via network signaling (NS), such as by sending an NS value. The UE then determines the A-MPR and, based on the determined A-MPR, determines an allowed MPR. In certain embodiments, the determined A-MPR is added to the (normal) allowed MPR for the non-contiguous allocation to derive a total MPR. The UE then uses the total MPR when signaling in the network.

[0099] For contiguous allocation, the MPR for CP-OFDM with contiguous allocation shall be specified in a table similar to Table 600. Here, Table 600 may be applicable when the network entity (e.g., gNB or other RAN node) signals the value "NS_07". From Table 600, it can be seen that the MPR for contiguous allocation depends on the RB START , the position of the first RB allocated continuously and L CRB (Number of RBs in a contiguous allocation.) In some embodiments, the A-MPR value may be adjusted by the value β discussed above.

[0100] Note that in Table 600, the parameter "RB START " indicates the lowest RB index of the resource block being transmitted, and the parameter "L CRB” is the length of the contiguous resource block allocation. Note that for intra-subframe frequency hopping that intersects with the region, the parameter “RB START ” and parameter “L CRB ” is applicable on a per-slot basis. Additionally, for intra-subframe frequency hopping that intersects a region, a larger A-MPR value may be applied to both slots in the subframe.

[0101] Figure 7 Another example of a table 700 depicting A-MPR for non-contiguous resource allocation, here associated with different NS values. In various embodiments, table 700 may be applicable when the value "NS_04" is signaled. In table 700, it can be seen that the MPR depends on the RB START and L CRB , as in the example above, but also depends on the center frequency F of the carrier c .

[0102] Note that in Table 700, the parameter "RB START " indicates the lowest RB index of the resource block being transmitted, and the parameter "L CRB ” is the length of the contiguous resource block allocation. Note that for intra-subframe frequency hopping that intersects with the region, the parameter “RB START ” and parameter “L CRB ” is applicable on a per-slot basis. Additionally, for intra-subframe frequency hopping that intersects a region, a larger A-MPR value may be applied to both slots in the subframe.

[0103] Furthermore, for NR with CP-OFDM modulation, in addition to the modulation order, the MPR table for contiguous allocation with additional emission restrictions (indicated using NS signaling) can also depend on the parameter RB START 、L CRB and F c .

[0104] When additional emission constraints signaled by NS are used with CP-OFDM modulation, the existing MPR tables defined for general emission requirements may not be sufficient to meet these requirements. Therefore, when additional emission requirements are signaled, it may be necessary to define MPRs that depend on RB in addition to the modulation order. START 、L CRB and F c Additional MPR tables for CP-OFDM are provided. Examples of such tables are described in Tables 600 and 700 above. From these tables defining the MPRs for CP-OFDM with additional emission constraints, the MPRs for the CP-OFDM with additional emission constraints are defined as follows: Figure 3 The PUCCH region of the bandwidth portion within the full channel bandwidth shown in , therefore it is necessary to define the MPR for non-contiguous allocation.

[0105] It may be noted that in different regions of these tables, different transmit constraints may limit the power that can be transmitted and thereby determine the required MPR. For example, for higher order modulations such as 64-QAM, the in-band transmit requirement may be a gating factor in the amount of power that can be transmitted. Conversely, for larger allocations, the ACLR requirement may limit the transmit power. Thus, in different regions of the table, a smaller or larger number of RBs may be punctured and still meet the transmit requirements. Thus, in addition to the modulation order, the fraction α of RBs that can be punctured from the allocation while still meeting the transmit requirements will depend on the parameter RB START 、L CRB and F c Determine the area of the table. Non-contiguous allocation has L CRB The span of L CRB is the number of RBs in the smallest contiguous allocation including non-contiguous allocations.

[0106] Figure 8 800 is a flow chart of a method 800 for determining an MPR for a non-contiguous allocation. The method 800 includes receiving 805 a non-contiguous resource allocation at a remote unit in a wireless communication system. The method 800 includes determining 810 a maximum power reduction for the non-contiguous resource allocation based on whether a fraction of resource blocks punctured from a minimum inclusive contiguous allocation ("SCCA") is less than a threshold α. The method 800 also includes transmitting 815 an uplink signal on the non-contiguous resource allocation using the determined maximum power reduction.

[0107] Disclosed herein is a first apparatus for determining a maximum power reduction for a non-contiguous radio resource allocation. The first apparatus can be a user terminal, such as a remote unit 105, a UE 205, and / or a user equipment device 400. The first apparatus includes a processor that identifies a received non-contiguous resource allocation and determines a maximum power reduction for the non-contiguous resource allocation based on whether a fraction of punctured resource blocks from a minimum inclusive contiguous allocation ("SCCA") is less than a threshold. The first apparatus includes a transceiver that transmits an uplink signal on the non-contiguous resource allocation using the determined maximum power reduction.

[0108] In various embodiments, an SCCA is a collection of contiguous resource blocks that includes a non-contiguous resource allocation, where the non-contiguous resource allocation comprises multiple smaller contiguous resource allocations. In some embodiments, the threshold α is based on at least one of: the lowest resource block index of the allocation and the number of resource blocks in the SCCA. In some embodiments, the threshold α is based on at least one of: the center frequency of the carrier to which the non-contiguous resource allocation belongs; and the modulation of the non-contiguous resource allocation.

[0109] In some embodiments, determining a maximum power reduction for non-contiguous resource allocation includes increasing a selected maximum power reduction for SCCA by a value β. In some embodiments, the value β is a function of the fraction of resource blocks punctured from SCCA. In one embodiment, the value β is the negative of 10 times the base-10 logarithm of the fraction of resource blocks punctured from SCCA.

[0110] In some embodiments, determining the maximum power reduction for a non-contiguous resource allocation includes: a) in response to a fraction of resource blocks punctured from SCCA being less than a threshold, selecting the maximum power reduction defined for SCCA as the MPR for the entire non-contiguous resource allocation, and b) in response to a fraction of resource blocks punctured from SCCA being not less than a threshold, not selecting the maximum power reduction defined for SCCA as the MPR for the entire non-contiguous resource allocation.

[0111] In some embodiments, the transceiver receives an indication of an additional power reduction from the wireless communication system. In such embodiments, transmitting the uplink signal on the non-contiguous resource allocation using the determined maximum power reduction includes further reducing the output power based on the indication. In some embodiments, transmitting the uplink signal on the non-contiguous resource allocation using the maximum power reduction includes the transceiver transmitting the uplink signal using a cyclic prefix orthogonal frequency division multiplexing ("CP-OFDM") waveform.

[0112] A first method for determining a maximum power reduction for a non-contiguous radio resource allocation is disclosed herein. The first method can be performed by a user terminal, such as a remote unit 105, a UE 205, and / or a user equipment device 400. The first method includes receiving a non-contiguous resource allocation at a remote unit in a wireless communication system and determining a maximum power reduction for the non-contiguous resource allocation based on whether a fraction of punctured resource blocks from a minimum inclusive contiguous allocation ("SCCA") is less than a threshold. The method includes transmitting an uplink signal on the non-contiguous resource allocation using the determined maximum power reduction.

[0113] In various embodiments, an SCCA is a collection of contiguous resource blocks that includes a non-contiguous resource allocation, where the non-contiguous resource allocation comprises multiple smaller contiguous resource allocations. In some embodiments, the threshold α is based on at least one of: the lowest resource block index of the allocation and the number of resource blocks in the SCCA. In some embodiments, the threshold α is based on at least one of: the center frequency of the carrier to which the non-contiguous resource allocation belongs; and the modulation of the non-contiguous resource allocation.

[0114] In some embodiments, determining a maximum power reduction for non-contiguous resource allocation includes increasing a selected maximum power reduction for SCCA by a value β. In some embodiments, the value β is a function of the fraction of resource blocks punctured from SCCA. In one embodiment, the value β is the negative of 10 times the base-10 logarithm of the fraction of resource blocks punctured from SCCA.

[0115] In some embodiments, determining the maximum power reduction for a non-contiguous resource allocation includes: a) in response to a fraction of resource blocks punctured from SCCA being less than a threshold, selecting the maximum power reduction defined for SCCA as the MPR for the entire non-contiguous resource allocation, and b) in response to a fraction of resource blocks punctured from SCCA being not less than a threshold, not selecting the maximum power reduction defined for SCCA as the MPR for the entire non-contiguous resource allocation.

[0116] In some embodiments, the first method includes receiving an indication of an additional power reduction from the wireless communication system. In such embodiments, transmitting the uplink signal on the non-contiguous resource allocation using the determined maximum power reduction includes further reducing the output power based on the indication. In some embodiments, transmitting the uplink signal on the non-contiguous resource allocation using the maximum power reduction includes transmitting the uplink signal using a cyclic prefix orthogonal frequency division multiplexing ("CP-OFDM") waveform.

[0117] The embodiments may be practiced in other specific forms. The described embodiments are to be considered in all respects as illustrative only and not restrictive. The scope of the present invention is therefore indicated by the appended claims rather than the foregoing description. All changes that come within the meaning and equivalency range of the claims are intended to be embraced within their scope.

Claims

1. A base station for wireless communication, comprising: at least one memory; as well as at least one processor coupled to the at least one memory and configured to cause the base station to: determining a non-contiguous resource allocation having a fraction of resource blocks punctured from a minimum inclusive contiguous allocation (SCCA), wherein the SCCA is a minimum set of contiguous resource blocks comprising the non-contiguous resource allocation, wherein the fraction is a ratio of the number of resource blocks punctured to the number of resource blocks in the SCCA; indicating the non-contiguous resource allocation to a user equipment UE; and In response to a fraction of punctured resource blocks satisfying a threshold, uplink signals are received on the non-contiguous resource allocation using a first maximum power reduction.

2. The base station of claim 1, wherein the non-contiguous resource allocation comprises a plurality of contiguous resource allocations.

3. A base station according to claim 1, wherein the first maximum power reduction for the non-continuous resource allocation includes a maximum power reduction defined for the SCCA in response to the fraction of the resource blocks punctured from the SCCA satisfying the threshold, and wherein in response to the fraction of the resource blocks punctured from the SCCA not satisfying the threshold, no maximum power reduction is defined for the non-continuous resource allocation. 4 . The base station of claim 1 , wherein the first maximum power reduction for the non-contiguous resource allocation comprises the selected maximum power reduction for the SCCA increased by a value β.

5. The base station of claim 4, wherein the value β is a function of a fraction of the resource blocks that are punctured from the SCCA. 6 . The base station according to claim 5 , wherein the value β is a negative number of 10 times the base-10 logarithm of the fraction of the resource blocks punctured from the SCCA.

7. The base station of claim 1 , wherein the at least one processor is further configured to cause the base station to send an indication of an additional maximum power reduction to the UE, wherein the first maximum power reduction comprises a maximum power reduction that increases the indicated additional maximum power reduction.

8. The base station of claim 1, wherein the threshold is based on a lowest resource block index of the SCCA or the number of resource blocks in the SCCA.

9. The base station of claim 1, wherein the threshold is based on a center frequency of a carrier to which the non-contiguous resource allocation belongs or a modulation of the non-contiguous resource allocation.

10. The base station of claim 1 , wherein to receive the uplink signal on the non-contiguous resource allocation using the first maximum power reduction, the at least one processor is configured to cause the base station to receive the uplink signal using a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform.

11. A method performed by a base station, the method comprising: determining a non-contiguous resource allocation having a fraction of resource blocks punctured from a minimum inclusive contiguous allocation (SCCA), wherein the SCCA is a minimum set of contiguous resource blocks comprising the non-contiguous resource allocation, wherein the fraction is a ratio of the number of resource blocks punctured to the number of resource blocks in the SCCA; indicating the non-contiguous resource allocation to a user equipment UE; and In response to a fraction of punctured resource blocks satisfying a threshold, uplink signals are received on the non-contiguous resource allocation using a first maximum power reduction.

12. The method of claim 11, wherein the non-contiguous resource allocation comprises a plurality of contiguous resource allocations.

13. A method according to claim 11, wherein the first maximum power reduction for the non-contiguous resource allocation includes a maximum power reduction defined for the SCCA in response to the fraction of the resource blocks punctured from the SCCA satisfying the threshold, and wherein in response to the fraction of the resource blocks punctured from the SCCA not satisfying the threshold, no maximum power reduction is defined for the non-contiguous resource allocation.

14. The method of claim 11, wherein the first maximum power reduction for the non-contiguous resource allocation comprises the selected maximum power reduction for the SCCA increased by a value β.

15. The method of claim 14, wherein the value β is a function of the fraction of the resource blocks that are punctured from the SCCA. 16 . The method of claim 15 , wherein the value β is the negative of 10 times the base-10 logarithm of the fraction of the resource blocks punctured from the SCCA.

17. The method of claim 11, further comprising sending an indication of an additional maximum power reduction, wherein the first maximum power reduction comprises a maximum power reduction that increases the indicated additional maximum power reduction.

18. The method of claim 11, wherein the threshold is based on a lowest resource block index of the SCCA or the number of resource blocks in the SCCA.

19. The method of claim 11, wherein the threshold is based on a center frequency of a carrier to which the non-contiguous resource allocation belongs or a modulation of the non-contiguous resource allocation.

20. The method of claim 11, wherein receiving the uplink signal on the non-contiguous resource allocation using the first maximum power reduction comprises receiving the uplink signal using a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform.

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