# US 2014/0153456 A1 · Method of setting ue mode switching for rpd reduction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153456 A1 - Document ID: US20140153456A1 - Status: Published application - Kind: A1 - Application number: 13/692,782 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: ST-Ericsson SA - Applicants: St-Ericsson SA - Inventors: CHESTER SUNGCHUNG PARK; BJORN ANDERS GUSTAVSSON - Web page: https://patentgrep.com/patent/US20140153456A1 ## CPC - H04W 52/38: TPC being performed in particular situations - H04W 52/288: {taking into account the usage mode, e.g. hands-free, data transmission or telephone} - H04W 52/223: {predicting future states of the transmission} - H04W 52/325: {Power control of control or pilot channels} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A UE communication device is provided having a transmitter architecture that transmits SRS transmissions and PUSCH transmissions. A reference mode chosen from a LPM, an MPM and an HPM is selected based on a present power mode of the SRS transmission or based on a predicted power mode that the PUSCH transmission following the present SRS transmission will likely operate in. The transmitter architecture has an exemplary extended switching point structure allowing the RPD between the SRS transmission used for pre-quarter selection and the subsequent PUSCH transmission applying the pre-quarter to be minimized. ## Claims ### Claim 1 A User Equipment (UE) comprising: a transmitter architecture adapted to transmit SRS transmissions and PUSCH transmissions; a controller adapted to interact with and control the transmitter architecture to switch between a plurality of transmission power modes and to transmit each SRS transmission and PUSCH transmission while in at least one of the plurality of power modes; wherein the plurality of power modes comprises a Low Power Mode (LPM), a Mid Power Mode (MPM), and a High Power Mode (HPM); wherein the controller is further adapted to select a reference mode from one of the plurality of power modes each time an SRS transmission occurs, the reference mode for transmitting the SRS is selected based on a power mode that the SRS transmission belongs to or is selected based on a predicted power mode that the PUSCH transmission following the SRS transmission will likely belong to; wherein when the selected reference mode is LPM, the controller is adapted to control the transmitter architecture to switch the power mode at a low default switching point power level between LPM and MPM; wherein when the selected reference mode is MPM, the controller is adapted to control the transmitter architecture to switch power modes at a low extended switching point power level between LPM and MPM and at the high default switching point power level between MPM and HPM; and wherein when the selected reference mode is HPM, the controller is adapted to control the transmitter architecture to switch power modes at a high extended switching point power level between MPM and HPM; the low extended switching point power level being lower than the low default switching point power level and the high extended switching point power level being lower than the high default switching point power level. ### Claim 2 (depends on 1) The UE of claim 1, the SRS transmission comprises transmission of a portion of one subframe and the PUSCH transmission comprises transmission of a plurality of subframe portions. ### Claim 3 (depends on 1) The UE of claim 1, wherein the predicted power mode that the PUSCH transmission following the present SRS transmission will likely operate in is based on PUSCH transmission history. ### Claim 4 (depends on 1) The UE of claim 1, wherein the reference mode is selected based on the predicted power mode that the PUSCH transmission that follows the present SRS transmission will likely operate in when the predicted power mode is different than the present power mode of the SRS transmission. ### Claim 5 (depends on 2) The UE of claim 2, wherein when the selected reference mode is MPM, the controller is further configured to provide a subframe counter configured to count each PUSCH transmission subframe within a lower hysteresis region of the MPM and between two consecutive SRS transmissions, wherein the lower hysteresis region of the MPM is the power region between the low default switching point power level and the low extended switching point power level. ### Claim 6 (depends on 5) The UE of claim 5, wherein when the counter counts a predefined number of PUSCH subframes within the lower hysteresis region, then the reference mode is switched from MPM to LPM until a next SRS transmission. ### Claim 7 (depends on 2) The UE of claim 2, wherein when the selected reference mode is HPM, controller is further configured to provide a subframe counter configured to count each PUSCH transmission subframe within a upper hysteresis region of the HPM and between two consecutive SRS transmissions; wherein the upper hysteresis region is the HPM is the power region between the high default switching point power level and the high extended switching point power level. ### Claim 8 (depends on 7) The UE of claim 7, wherein when the counter counts a predefined number of PUSCH subframes within the upper hysteresis region, the reference mode is switched from HPM to MPM until a next SRS transmission. ### Claim 9 (depends on 1) The UE of claim 1, wherein the high default switching point power level is greater than the high extended switching point power level, which is greater than the low default switching point power level, which is greater than the low extended switching point power level. ### Claim 10 In a UE device adapted to transmit SRS transmissions and PUSCH transmissions while in at least one of a plurality of power modes comprising a Low Power Mode (LPM), a Mid Power Mode (MPM), and a High Power Mode (HPM), a method of switching between the plurality of power modes comprising: selecting, by the UE, a reference mode from one of the plurality of power modes each time an SRS transmission occurs, wherein selecting the reference mode further comprises: selecting the reference mode based on a power mode that the SRS transmission belongs within; or selecting the reference mode based on a predicted power mode that the PUSCH transmission following the SRS transmission will likely belong within; wherein when the selected reference mode is LPM, switching the power mode by the UE at least at a low default switching point power level between LPM and MPM; wherein when the selected reference mode is MPM, switching the power mode by the UE at least at a low extended switching point power level between LPM and MPM and at a high default switching power level between MPM and HPM; and wherein when the selected reference mode is HPM, switching the power mode by the UE at least at a high extended switching point power level between MPM and HPM; wherein the high default switching point power level is greater than the high extended switching point power level, which is greater than the low default switching point power level, which is greater than the low extended switching point power level. switching point power level. ### Claim 11 (depends on 10) The method of claim 10, wherein selecting the reference mode based on the predicted power mode that the PUSCH transmission following the occurring SRS transmission will likely belong within comprises using, by the UE, PUSCH transmission history to predict the predicted power mode that the PUSCH transmission following the occurring SRS transmission with likely belong within. ### Claim 12 (depends on 10) The method of claim 10, wherein selecting the reference mode further comprises selecting the reference mode based on the predicted power mode when the predicted power mode is different from the power mode that the SRS transmission belongs within. ### Claim 13 (depends on 10) The method of claim 10, wherein selecting the reference mode further comprises selecting the reference mode based on the power mode that the SRS transmission belongs within when the predicted power mode is the same as the power mode that the SRS transmission belongs within. ### Claim 14 (depends on 10) The method of claim 10, further comprising: counting, by the UE when the selected reference mode is MPM, a number of PUSCH transmission subframes that are within a lower hysteresis region and are between two consecutive SRS transmissions; wherein the lower hysteresis region is defined by the power region between the low default switching point power level and the low extended switching point power level. ### Claim 15 (depends on 14) The method of claim 14, further comprising: switching from MPM to LPM until a next SRS transmission when the number of counted PUSCH transmission subframes equals a predetermined number. ### Claim 16 (depends on 10) The method of claim 10, further comprising: counting, by the UE when the selected reference mode is HPM, a number of PUSCH transmission subframes that are within a upper hysteresis region and are between two consecutive SRS transmissions; wherein the upper hysteresis region is defined by the power region between the high default switching point power level and the high extended switching point power level. ### Claim 17 (depends on 16) The method of claim 16, further comprising: switching from HPM to MPM until a next SRS transmission when the number of counted PUSCH transmission subframes equal a predetermined number.