# US 2020/0288404 A1 · TPC Command Indication for Multiple Closed Loops > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288404 A1 - Document ID: US20200288404A1 - Status: Published application - Kind: A1 - Application number: 16/646,621 - Filed: 2018-09-17 - Published: 2020-09-10 - Earliest claimed: 2017-10-02 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Ravikiran NORY; Niklas WERNERSSON - Web page: https://patentgrep.com/patent/US20200288404A1 ## CPC - H04W 52/08: Closed loop power control - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04W 52/143: {Downlink power control} - H04W 52/146: {Uplink power control} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 52/325: {Power control of control or pilot channels} - H04W 52/54: Signalisation aspects of the TPC commands, e.g. frame structure - H04W 52/58: Format of the TPC bits - 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 According to certain embodiments, a method is performed by a wireless device configured with multiple power control closed loops for a serving cell. The method comprises receiving a transmit power control (TPC) command in a downlink control message that comprises a plurality of TPC commands. The method comprises determining a particular power control closed loop of the plurality of power control closed loops to which the TPC command should be applied. The particular power control closed loop is determined using the downlink control message. The method further comprises updating the particular power control closed loop using the TPC command. ## Claims ### Claim 1 A method in a wireless device configured with multiple power control closed loops for a serving cell, the method comprising: receiving a transmit power control (TPC) command in a downlink control message, the downlink control message comprising a plurality of TPC commands; determining a particular power control closed loop of the plurality of power control closed loops to which the TPC command should be applied, the particular power control closed loop determined using the downlink control message; and updating the particular power control closed loop using the TPC command. ### Claim at position 2 -18. (canceled) ### Claim 19 A wireless device configured with multiple power control closed loops for a serving cell, the wireless device comprising: a receiver; and processing circuitry coupled to the receiver, the processing circuitry configured to: receive, via the receiver, a transmit power control (TPC) command in a downlink control message, the downlink control message comprising a plurality of TPC commands; determine a particular power control closed loop of the plurality of power control closed loops to which the TPC command should be applied, the particular power control closed loop determined using the downlink control message; and update the particular power control closed loop using the TPC command. ### Claim 20 (depends on 19) The wireless device of claim 19, wherein the downlink control message is a Physical Downlink Control Channel (PDCCH) message containing downlink control information (DCI). ### Claim 21 (depends on 20) The wireless device of claim 20, wherein the processing circuitry is further configured to: receive, via the receiver, one or more closed loop indication bits in the DCI; and use the closed loop indication bits in determining the particular power control closed loop. ### Claim 22 (depends on 21) The wireless device of claim 21, wherein the one or more closed loop indication bits comprise an index value that is associated with the particular power control closed loop. ### Claim 23 (depends on 19) The wireless device of claim 19, wherein the processing circuitry is further configured to: determine a Radio Network Temporary Identifier (RNTI) associated with the downlink control message; and use the RNTI in determining the particular power control closed loop. ### Claim 24 (depends on 19) The wireless device of claim 19, wherein the processing circuitry is further configured to use a DCI cyclic redundancy check (CRC) of the downlink control message in determining the particular power control closed loop. ### Claim 25 (depends on 19) The wireless device of claim 19, wherein the multiple power control closed loops are used by the wireless device for adjusting transmission powers of Physical Uplink Shared Channel (PUSCH) transmissions on the serving cell. ### Claim 26 (depends on 19) The wireless device of claim 19, wherein the multiple power control closed loops are used by the wireless device for adjusting transmission powers of Physical Up ink Control Channel (PUCCH) transmissions on the serving cell. ### Claim 27 (depends on 19) The wireless device of claim 19, wherein the multiple power control closed loops are used by the wireless device for adjusting transmission powers of Sounding Reference Signal (SRS) transmissions on the serving cell. ### Claim 28 (depends on 19) The wireless device of claim 19, wherein the TPC command indicates a power control adjustment (δ) value that should be applied to the particular power control closed loop. ### Claim 29 (depends on 19) The wireless device of claim 19, wherein the downlink control message does not contain bits indicating an assignment of uplink resources. ### Claim 30 (depends on 19) The wireless device of claim 19, wherein the downlink control message is addressed to a group comprising the wireless device and one or more other wireless devices; and the plurality of TPC commands received in the downlink control message include one or more TPC commands associated with the one or more other wireless devices in the group. ### Claim 31 (depends on 19) The wireless device of claim 19, wherein the processing circuitry is further configured to, in response to receiving the downlink control message comprising the plurality of TPC commands, determine which of the plurality of TPC commands is to be applied by the wireless device. ### Claim 32 (depends on 31) The wireless device of claim 31, wherein the TPC command is determined using a bit field location in the DCI of the downlink control message. ### Claim 33 (depends on 32) The wireless device of claim 32, wherein the bit field location is indicated to the wireless device by higher layers. ### Claim 34 (depends on 19) The wireless device of claim 19, wherein each of the plurality of power control closed loops is associated with a respective beam of the serving cell. ### Claim 35 (depends on 19) The wireless device of claim 19, wherein to update the particular power control closed loop, the processing circuitry is configured to adjust a transmission power used in transmitting a physical uplink shared channel (PUSCH) transmission, the transmission power adjusted based on the power control adjustment (δ) value indicated by the particular TPC command. ### Claim 36 A method in a network node, the method comprising: determining a transmit power control (TPC) command for a particular one of multiple power control closed loops configured on a serving cell for a wireless device; and transmitting a downlink control message comprising a plurality of TPC commands, wherein the downlink control message includes the TPC command determined for the particular power control closed loop and provides an indication of the particular power control closed loop to which the wireless device should apply the TPC command. ### Claim at position 21 37-54. (canceled) ### Claim 55 A network node, comprising: a transmitter; and processing circuitry coupled to the transmitter, the processing circuitry configured to: determine a transmit power control (TPC) command for a particular one of multiple power control closed loops configured on a serving cell for a wireless device; and transmit, via the transmitter, a downlink control message comprising a plurality of TPC commands, wherein the downlink control message includes the TPC command determined for the particular power control closed loop and provides an indication of the particular power control closed loop to which the wireless device should apply the TPC command. ### Claim 56 (depends on 55) The network node of claim 55, wherein the downlink control message is a Physical Down ink Control Channel (PDCCH) message containing downlink control information (DCI). ### Claim 57 (depends on 55) The network node of claim 55, wherein the indication comprises one or more closed loop indication bits provided in the downlink control message. ### Claim 58 (depends on 57) The network node of claim 57, wherein the one or more closed loop indication bits comprise an index value that is associated with the particular power control closed loop. ### Claim 59 (depends on 55) The network node of claim 55, the processing circuitry further configured to: use a Radio Network Temporary Identifier (RNTI) associated with the wireless device to scramble at least a portion of the downlink control message as an indication of the particular power control closed loop. ### Claim 60 (depends on 55) The network node of claim 55, the processing circuitry further configured to: use a DCI cyclic redundancy check (CRC) of the downlink control message to indicate the particular power control closed loop. ### Claim 61 (depends on 55) The network node of claim 55, wherein the multiple power control closed loops are used by the wireless device for adjusting transmission powers of Physical Uplink Shared Channel (PUSCH) transmissions on the serving cell. ### Claim at position 29 -72. (canceled)