# US 11,121,898 B2 · Maximum power reduction for non-contiguous allocation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,121,898 B2 - Document ID: US11121898B2 - Status: Granted - Kind: B2 - Application number: 16/921,797 - Filed: 2020-07-06 - Published: 2020-10-22 - Granted: 2021-09-14 - Earliest claimed: 2018-01-22 - Assignees: Lenovo (Singapore) Pte. Ltd. - Applicants: Lenovo (Singapore) Pte. Ltd. - Inventors: Colin Frank - Web page: https://patentgrep.com/patent/US11121898B2 ## CPC - H04L 27/2614: {Peak power aspects} - H04L 5/0012: {Hopping in multicarrier systems} - H04L 5/0041: {Frequency-non-contiguous} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 27/2605: {Symbol extensions, e.g. Zero Tail, Unique Word [UW]} - H04W 52/146: {Uplink power control} - H04W 52/346: {distributing total power among users or channels} - H04W 52/362: {Aspects of the step size} - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 52/226: {using past references to control power, e.g. look-up-table} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Apparatuses, methods, and systems are disclosed for determining a maximum power reduction for non-contiguous radio resource allocations. One apparatus includes a processor that receives a non-contiguous resource allocation and calculates a fraction of resource block punctured from a smallest containing contiguous allocation (“SCCA”). Here, the SCCA is a smallest set of contiguous resource blocks that encompasses the non-contiguous resource allocation. The processor determines a first additional maximum power reduction for the non-contiguous resource allocation in response to the fraction of punctured resource blocks being less than a threshold value. The apparatus includes a transceiver that transmits an uplink signal on the non-contiguous resource allocation using the first additional maximum power reduction in response to the fraction of punctured resource blocks being less than the threshold value. ## Claims ### Claim 1 An apparatus comprising: a transceiver that communicates with a wireless communication system; and a processor that: receives a non-contiguous resource allocation; calculates a fraction of resource blocks punctured from a smallest containing contiguous allocation (“SCCA”), wherein the SCCA is a smallest set of contiguous resource blocks that encompasses the non-contiguous resource allocation; determines a first additional maximum power reduction for the non-contiguous resource allocation in response to the fraction of punctured resource blocks being less than a threshold value; and transmits an uplink signal on the non-contiguous resource allocation using the first additional maximum power reduction in response to the fraction of punctured resource blocks being less than the threshold value. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the non-contiguous resource allocation comprises a plurality of smaller contiguous resource allocations. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein determining the first additional maximum power reduction for the non-contiguous resource allocation comprises: selecting an additional maximum power reduction defined for the SCCA as the MPR for the entire non-contiguous resource allocation in response to the fraction of resource blocks punctured from the SCCA being less than the threshold value; and wherein no additional maximum power reduction is defined for the non-contiguous resource allocation in response to the fraction of resource blocks punctured from the SCCA not being less than the threshold value. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein determining the first additional maximum power reduction for the non-contiguous resource allocation comprises increasing a selected additional maximum power reduction for the SCCA by a value β. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the value β is a function of the fraction of resource blocks punctured from the SCCA. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein the value β is the negative of 10 times the base 10 logarithm of the fraction of resource blocks punctured from the SCCA. ### Claim 7 (depends on 4) The apparatus of claim 4, wherein the total maximum power reduction for the non-contiguous resource allocation is the maximum of the additional maximum power reduction for the non-contiguous resource allocation and the maximum power reduction for the non-contiguous resource allocation. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the threshold value is based on at least one of: a lowest resource block index of the allocation and a number of resource blocks in the SCCA. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the threshold value is based on at least one of: a center frequency of a carrier to which the non-contiguous resource allocation belongs, and a modulation of the non-contiguous resource allocation. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein transmitting the uplink signal on the non-contiguous resource allocation using the first additional maximum power reduction comprises transmitting the uplink signal using a cyclic prefix orthogonal frequency division multiplexing (“CP-OFDM”) waveform. ### Claim 11 A method comprising: receiving, at a remote unit in a wireless communication system, a non-contiguous resource allocation; calculating, by a remote unit, a fraction of resource blocks punctured from a smallest containing contiguous allocation (“SCCA”), wherein the SCCA is a smallest set of contiguous resource blocks that encompasses the non-contiguous resource allocation; determining, by a remote unit, a first additional maximum power reduction for the non-contiguous resource allocation in response to the fraction of punctured resource blocks being less than a threshold value; and transmitting, by a remote unit, an uplink signal on the non-contiguous resource allocation using the first additional maximum power reduction in response to the fraction of punctured resource blocks being less than the threshold value. ### Claim 12 (depends on 11) The method of claim 11, wherein the non-contiguous resource allocation comprises a plurality of smaller contiguous resource allocations. ### Claim 13 (depends on 11) The method of claim 11, wherein determining the first additional maximum power reduction for the non-contiguous resource allocation comprises: selecting an additional maximum power reduction defined for the SCCA as the MPR for the entire non-contiguous resource allocation in response to the fraction of resource blocks punctured from the SCCA being less than the threshold value; and wherein no additional maximum power reduction is defined for the non-contiguous resource allocation in response to the fraction of resource blocks punctured from the SCCA not being less than the threshold value. ### Claim 14 (depends on 11) The method of claim 11, wherein determining the first additional maximum power reduction for the non-contiguous resource allocation comprises increasing a selected additional maximum power reduction for the SCCA by a value β. ### Claim 15 (depends on 14) The method of claim 14, wherein the value β is a function of the fraction of resource blocks punctured from the SCCA. ### Claim 16 (depends on 15) The method of claim 15, wherein the value β is the negative of 10 times the base 10 logarithm of the fraction of resource blocks punctured from the SCCA. ### Claim 17 (depends on 14) The method of claim 14, wherein the total maximum power reduction for the non-contiguous resource allocation is the maximum of the additional maximum power reduction for the non-contiguous resource allocation and the maximum power reduction for the non-contiguous resource allocation. ### Claim 18 (depends on 11) The method of claim 11, wherein the threshold value is based on at least one of: a lowest resource block index of the allocation and a number of resource blocks in the SCCA. ### Claim 19 (depends on 11) The method of claim 11, wherein the threshold value is based on at least one of: a center frequency of a carrier to which the non-contiguous resource allocation belongs, and a modulation of the non-contiguous resource allocation. ### Claim 20 (depends on 11) The method of claim 11, wherein transmitting the uplink signal on the non-contiguous resource allocation using the first additional maximum power reduction comprises transmitting the uplink signal using a cyclic prefix orthogonal frequency division multiplexing (“CP-OFDM”) waveform.