# US 10,375,651 B2 · Uplink signal transmission method and user equipment capable of protecting neighboring band from mobile satellite service band > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,375,651 B2 - Document ID: US10375651B2 - Status: Granted - Kind: B2 - Application number: 15/748,221 - Filed: 2016-08-11 - Published: 2018-08-02 - Granted: 2019-08-06 - Earliest claimed: 2015-08-24 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Suhwan Lim; Yoonoh Yang; Sangwook Lee; Manyoung Jung; Jinyup Hwang - Web page: https://patentgrep.com/patent/US10375651B2 ## CPC - H04W 52/243: {taking into account interferences} - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 72/54: based on quality criteria - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0062: {Avoidance of ingress interference, e.g. ham radio channels} - H04L 5/1469: {using time-sharing} - H04W 52/146: {Uplink power control} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A disclosure of the present specification provides a method for transmitting an uplink signal by a user equipment. The method may comprise the steps of: receiving a network signal for restricting a transmission power, wherein, when an uplink signal is transmitted through an uplink carrier wave in an uplink band that partially overlaps a mobile satellite service (MSS) band, the network signal is received in the case in which the uplink signal may provide interference to a personal handyphone system (PHS) band; determining a transmission power by applying additional maximum power reduction (A-MPR) on the basis of the received network signal; and transmitting the uplink signal through the uplink carrier wave according to the determined transmission power. ## Claims ### Claim 1 A method for transmitting an uplink signal by a user equipment, comprising: receiving a network signal for limiting transmission power, wherein the network signal is received when the uplink signal is transmitted through an uplink carrier within an uplink band overlapping with part of a mobile satellite service (MSS) band such that the uplink signal is likely to cause interference to a personal handyphone system (PHS) band; determining a transmission power by adopting additional maximum power reduction (A-MPR) based on the received network signal; and transmitting the uplink signal through the uplink carrier in accordance with the determined transmission power, wherein when the uplink band corresponds to evolved-universal terrestrial radio access (E-UTRA) band 65, a value being indicated by the network signal is different from a value being indicated by a network signal for the E-UTRA band 1 that is positioned to be adjacent to the MSS band. ### Claim 2 (depends on 1) The method of claim 1, wherein the E-UTRA band 65 overlaps with part of the E-UTRA band 1. ### Claim 3 (depends on 1) The method of claim 1, wherein the network signal corresponds to a network signal allowing resource block allocation to be performed by applying the A-MPR for a frequency in which the resource block allocation is limited, when the transmission power is limited in accordance with the network signal for the E-UTRA band 1. ### Claim 4 (depends on 1) The method of claim 1, wherein, when a frequency distance between a boundary frequency of the uplink band and the PHS band is equal to 4.3 MHz, a value of the A-MPR is equal to 9 dB. ### Claim 5 (depends on 1) The method of claim 1, wherein a spurious emission protection level for the PHS band of the uplink band corresponds to −41 dBm/300 kHz. ### Claim 6 (depends on 1) The method of claim 1, wherein the uplink carrier for transmitting the uplink signal corresponds to 1920 MHz-1940 MHz. ### Claim 7 A method for transmitting an uplink signal by a user equipment, comprising: receiving a network signal for limiting transmission power, wherein the network signal is received, when the uplink signal is transmitted through an uplink carrier within an uplink band being adjacent to both an evolved-universal terrestrial radio access (E-UTRA) band 33 and a E-UTRA band 39 such that the uplink signal is likely to cause interference to any one of the E-UTRA\ band 33 and E-UTRA band 39; determining a transmission power by adopting additional maximum power reduction (A-MPR) based on the received network signal; determining a guard band based on the received network signal; and transmitting the uplink signal through the uplink carrier in accordance with the determined transmission power and guard band, wherein when the uplink band corresponds to E-UTRA band 65, a value being indicated by the network signal is different from a value being indicated by a network signal for E-UTRA band 1 that is positioned to be adjacent to the MSS band. ### Claim 8 (depends on 7) The method of claim 7, wherein, when a bandwidth of the uplink carrier is equal to 15 MHz, when a spurious emission protection level for the E-UTRA band 33 and the E-UTRA band 39 of the uplink band corresponds to −40 dBm/MHz, the guard band corresponds to 20 MHz, and a value of the A-MPR value is equal to 1 dB. ### Claim 9 A user equipment for transmitting an uplink signal, comprising: a radio frequency (RF) unit configured to transmit and receive radio signals through a band overlapping with part of a mobile satellite service (MSS) band; and a processor configured to control the RF unit, wherein the processor controls the RF unit thereby: receiving a network signal for limiting transmission power, wherein the network signal is received when the uplink signal is transmitted through an uplink carrier within an uplink band overlapping with part of a mobile satellite service (MSS) band such that the uplink signal is likely to cause interference to a personal handyphone system (PHS) band, determining a transmission power by adopting additional maximum power reduction (A-MPR) based on the received network signal, and transmitting the uplink signal through the uplink carrier in accordance with the determined transmission power, wherein when the uplink band corresponds to evolved-universal terrestrial radio access (E-UTRA) band 65, a value being indicated by the network signal is different from a value being indicated by a network signal for the E-UTRA band 1 that is positioned to be adjacent to the MSS band. ### Claim 10 (depends on 9) The user equipment of claim 9, wherein the E-UTRA band 65 overlaps with part of the E-UTRA band 1. ### Claim 11 (depends on 9) The user equipment of claim 9, wherein the network signal corresponds to a network signal allowing resource block allocation to be performed by applying the A-MPR for a frequency in which the resource block allocation is limited, when the transmission power is limited in accordance with the network signal for the E-UTRA band 1. ### Claim 12 (depends on 9) The user equipment of claim 9, wherein, when a frequency distance between a boundary frequency of the uplink band and the PHS band is equal to 4.3 MHz, a value of the A-MPR is equal to 9 dB. ### Claim 13 (depends on 9) The user equipment of claim 9, wherein a spurious emission protection level for the PHS band of the uplink band corresponds to −41 dBm/300 kHz. ### Claim 14 (depends on 9) The user equipment of claim 9, wherein the uplink carrier for transmitting the uplink signal corresponds to 1920 MHz-1940 MHz. ### Claim 15 A user equipment for transmitting an uplink signal, comprising: a radio frequency (RF) unit configured to transmit and receive radio signals through a band being adjacent to both evolved-universal terrestrial radio access (E-UTRA) band 33 and E-UTRA band 39; and a processor configured to control the RF unit, wherein the processor controls the RF unit thereby: receiving a network signal for limiting transmission power, wherein the network signal is received, when the uplink signal is transmitted through an uplink carrier within an uplink band being adjacent to both an evolved-universal terrestrial radio access (E-UTRA) band 33 and a E-UTRA band 39 such that the uplink signal is likely to cause interference to any one of the E-UTRA\ band 33 and E-UTRA band 39, determining a transmission power by adopting additional maximum power reduction (A-MPR) based on the received network signal, determining a guard band based on the received network signal, and transmitting the uplink signal through the uplink carrier in accordance with the determined transmission power and guard band, wherein when the uplink band corresponds to E-UTRA band 65, a value being indicated by the network signal is different from a value being indicated by a network signal for E-UTRA band 1 that is positioned to be adjacent to the MSS band. ### Claim 16 (depends on 15) The user equipment of claim 15, wherein, when a bandwidth of the uplink carrier is equal to 15 MHz, when a spurious emission protection level for the E-UTRA band 33 and the E-UTRA band 39 of the uplink band corresponds to −40 dBm/MHz, the guard band corresponds to 20 MHz, and a value of the A-MPR value is equal to 1 dB.