# US 10,455,558 B2 · Handling for interruption due to carrier switching and carrier switching capability indication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,558 B2 - Document ID: US10455558B2 - Status: Granted - Kind: B2 - Application number: 15/498,246 - Filed: 2017-04-26 - Published: 2017-11-16 - Granted: 2019-10-22 - Earliest claimed: 2016-05-13 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Alberto Rico Alvarino; Peter Gaal; Hao Xu; Wanshi Chen - Web page: https://patentgrep.com/patent/US10455558B2 ## CPC - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 5/001: {the frequencies being arranged in component carriers} - 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)} - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04W 8/22: Processing or transfer of terminal data, e.g. status or physical capabilities - H04W 52/146: {Uplink power control} - H04W 52/44: in connection with interruption of transmission - H04W 52/48: during retransmission after error or non-acknowledgment - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 Aspects of the present disclosure provide procedures for handling interruption due to carrier switching for sounding reference signal transmission and for a carrier switching capability indication. A method by a user equipment (UE) is provided, generally including interrupting communication on a first component carrier (CC) to switch between the first CC and a second CC to transmit an uplink reference signal on the second CC and adjusting one or more parameters of an uplink transmission on the first component carrier to account for the interrupting communication on the second CC. In aspects, another method is provided in which, a UE receives a query from a base station for switching capability information of the UE for one or more carrier aggregation (CA) configurations and, in response to the query, provides an indication to the BS of the switching capability information of the UE for the one or more CA configurations. ## Claims ### Claim 1 A method for wireless communications by a user equipment (UE), comprising: receiving a query from a base station (BS) for capability information of the UE; and in response to the query, providing an indication to the BS of switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 2 (depends on 1) The method of claim 1, wherein the switching capability of the UE is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 3 (depends on 1) The method of claim 1, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 4 (depends on 1) The method of claim 1, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 5 (depends on 1) The method of claim 1, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 6 (depends on 1) The method of claim 1, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 7 (depends on 1) The method of claim 1, further comprising: receiving a CA configuration in response to providing the indication. ### Claim 8 A method for wireless communications by a base station (BS), comprising: sending a query to a user equipment (UE) for capability information of the UE; and in response to the query, receiving an indication of switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 9 (depends on 8) The method of claim 8, wherein the switching capability of the UE is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 10 (depends on 8) The method of claim 8, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 11 (depends on 8) The method of claim 8, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 12 (depends on 8) The method of claim 8, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 13 (depends on 8) The method of claim 8, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 14 (depends on 8) The method of claim 8, further comprising: providing a CA configuration in response to receiving the indication. ### Claim 15 A method for wireless communications by a user equipment (UE), comprising: interrupting an uplink transmission on a first component carrier (CC) to switch between the first CC and a second CC to transmit an uplink reference signal on the second CC; and adjusting one or more parameters or parameter values of the uplink transmission on the first CC to account for the interrupting communication on the second CC. ### Claim 16 (depends on 15) The method of claim 15, wherein interrupting communication on the first CC to switch between the first CC and the second CC includes interrupting communication caused by at least one of switching to the second CC from the first CC to transmit the uplink reference signal on the second CC or switching back from the second CC to the first CC to resume the uplink transmission on the first CC. ### Claim 17 (depends on 15) The method of claim 15, wherein the second CC is a CC configured for downlink data transmission only. ### Claim 18 (depends on 15) The method of claim 15, wherein adjusting the one or more parameters or parameter values comprises adjusting, based on a time to switch between the first CC and the second CC, a transmit power level associated with one or more symbols of a physical channel for the uplink transmission on the first CC. ### Claim 19 (depends on 15) The method of claim 15, wherein the uplink transmission on the first CC comprises at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 20 (depends on 15) The method of claim 15, wherein the reference signal comprises a sounding reference signal (SRS). ### Claim 21 (depends on 15) The method of claim 15, wherein adjusting the one or more parameters or parameter values comprises adjusting resources used for the uplink transmission on the first CC. ### Claim 22 (depends on 15) The method of claim 15, further comprising: receiving a set of parameter values, from a base station (BS), the parameter values associated with at least one of: different durations of the interruption or different types of uplink transmission; and determining the adjustment for the one or more parameters or parameter values based on the received set of parameters values and the associated durations or uplink transmission types. ### Claim 23 (depends on 22) The method of claim 22, wherein the set of parameter values is received via at least one of a system information block (SIB) broadcast or radio resource control (RRC) signaling. ### Claim 24 (depends on 15) The method of claim 15, further comprising receiving an indication from the base station of the adjustment for the one or more parameters or parameter values. ### Claim 25 An apparatus for wireless communications by a user equipment (UE), comprising: means for receiving a query from a base station (BS) for capability information of the UE; and means for, in response to the query, providing an indication to the BS of the switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 26 (depends on 25) The apparatus of claim 25, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 27 (depends on 25) The apparatus of claim 25, wherein the switching capability of the UE is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 28 (depends on 25) The apparatus of claim 25, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 29 (depends on 25) The apparatus of claim 25, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 30 (depends on 25) The apparatus of claim 25, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 31 (depends on 25) The apparatus of claim 25, further comprising: means for receiving a CA configuration in response to providing the indication. ### Claim 32 An apparatus for wireless communications, comprising: means for sending a query to a user equipment (UE) for capability information of the UE; and means for, in response to the query, receiving an indication of switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 33 (depends on 32) The apparatus of claim 32, wherein the switching capability of the UE is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 34 (depends on 32) The apparatus of claim 32, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 35 (depends on 32) The apparatus of claim 32, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 36 (depends on 32) The apparatus of claim 32, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 37 (depends on 32) The apparatus of claim 32, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 38 (depends on 32) The apparatus of claim 32, further comprising: means for providing a CA configuration in response to receiving the indication. ### Claim 39 An apparatus for wireless communications, comprising: means for interrupting an uplink transmission on a first component carrier (CC) to switch between the first CC and a second CC to transmit an uplink reference signal on the second CC; and means for adjusting one or more parameters or parameter values of the uplink transmission on the first CC to account for the interrupting communication on the second CC. ### Claim 40 (depends on 39) The apparatus of claim 39, wherein interrupting communication on the first CC to switch between the first CC and the second CC includes interrupting communication caused by at least one of switching to the second CC from the first CC to transmit the uplink reference signal on the second CC or switching back from the second CC to the first CC to resume the uplink transmission on the first CC. ### Claim 41 (depends on 39) The apparatus of claim 39, wherein the second CC is a CC configured for downlink data transmission only. ### Claim 42 (depends on 39) The apparatus of claim 39, wherein adjusting the one or more parameters or parameter values comprises adjusting, based on a time to switch between the first CC and the second CC, a transmit power level associated with one or more symbols of a physical channel for the uplink transmission on the first CC. ### Claim 43 (depends on 39) The apparatus of claim 39, wherein the uplink transmission on the first CC comprises at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 44 (depends on 39) The apparatus of claim 39, wherein the reference signal comprises a sounding reference signal (SRS). ### Claim 45 (depends on 39) The apparatus of claim 39, wherein adjusting the one or more parameters or parameter values comprises adjusting resources used for the uplink transmission on the first CC. ### Claim 46 (depends on 39) The apparatus of claim 39, further comprising: means for receiving a set of parameter values, from a base station (BS), the parameter values associated with at least one of: different durations of the interruption or different types of uplink transmission; and means for determining the adjustment for the one or more parameters or parameter values based on the received set of parameters values and the associated durations or uplink transmission types. ### Claim 47 (depends on 46) The apparatus of claim 46, wherein the set of parameter values is received via at least one of a system information block (SIB) broadcast or radio resource control (RRC) signaling. ### Claim 48 (depends on 39) The apparatus of claim 39, further comprising means for receiving an indication from a base station (BS) of the adjustment for the one or more parameters or parameter values. ### Claim 49 An apparatus for wireless communications, comprising: at least one processor coupled with a memory and configured to: receive a query from a base station (BS) for capability information of the apparatus; and in response to the query, provide an indication to the BS of the switching capability information of the apparatus for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the apparatus, CCs between which the apparatus supports switching, or a switching time associated with switching between different CCs. ### Claim 50 (depends on 49) The apparatus of claim 49, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 51 (depends on 49) The apparatus of claim 49, wherein the switching capability of the apparatus is based on at least one of: a user equipment (UE) capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 52 (depends on 49) The apparatus of claim 49, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 53 (depends on 49) The apparatus of claim 49, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 54 (depends on 49) The apparatus of claim 49, wherein the one or more CA configurations comprise a CA configuration that the apparatus is currently configured with. ### Claim 55 (depends on 49) The apparatus of claim 49, wherein the at least one processor is configured to receive a CA configuration in response to providing the indication. ### Claim 56 An apparatus for wireless communications, comprising: at least one processor coupled with a memory and configured to: send a query to a user equipment (UE) for capability information of the UE; and in response to the query, receive an indication of switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 57 (depends on 56) The apparatus of claim 56, wherein the switching capability of the UE is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 58 (depends on 56) The apparatus of claim 56, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 59 (depends on 56) The apparatus of claim 56, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 60 (depends on 56) The apparatus of claim 56, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 61 (depends on 56) The apparatus of claim 56, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 62 (depends on 56) The apparatus of claim 56, wherein the at least one processor is configured to provide a CA configuration in response to receiving the indication. ### Claim 63 An apparatus for wireless communications, comprising: at least one processor coupled with a memory and configured to: interrupt an uplink transmission on a first component carrier (CC) to switch between the first CC and a second CC to transmit an uplink reference signal on the second CC; and adjust one or more parameters or parameter values of the uplink transmission on the first CC to account for the interrupting communication on the second CC. ### Claim 64 (depends on 63) The apparatus of claim 63, wherein interrupting communication on the first CC to switch between the first CC and the second CC includes interrupting communication caused by at least one of switching to the second CC from the first CC to transmit the uplink reference signal on the second CC or switching back from the second CC to the first CC to resume the uplink transmission on the first CC. ### Claim 65 (depends on 63) The apparatus of claim 63, wherein the second CC is a CC configured for downlink data transmission only. ### Claim 66 (depends on 63) The apparatus of claim 63, wherein adjusting the one or more parameters or parameter values comprises adjusting, based on a time to switch between the first CC and the second CC, a transmit power level associated with one or more symbols of a physical channel for the uplink transmission on the first CC. ### Claim 67 (depends on 63) The apparatus of claim 63, wherein the uplink transmission on the first CC comprises at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 68 (depends on 63) The apparatus of claim 63, wherein the reference signal comprises a sounding reference signal (SRS). ### Claim 69 (depends on 63) The apparatus of claim 63, wherein adjusting the one or more parameters or parameter values comprises adjusting resources used for the uplink transmission on the first CC. ### Claim 70 (depends on 63) The apparatus of claim 63, wherein the at least one processor is configured to: receive a set of parameter values, from a base station (BS), the parameter values associated with at least one of: different durations of the interruption or different types of uplink transmission; and determine the adjustment for the one or more parameters or parameter values based on the received set of parameters values and the associated durations or uplink transmission types. ### Claim 71 (depends on 70) The apparatus of claim 70, wherein the set of parameter values is received via at least one of a system information block (SIB) broadcast or radio resource control (RRC) signaling. ### Claim 72 (depends on 63) The apparatus of claim 63, wherein the at least one processor is configured to receive an indication from a base station (BS) of the adjustment for the one or more parameters or parameter values. ### Claim 73 A non-transitory computer readable medium storing computer executable code thereon for wireless communications, comprising: code for receiving a query from a base station (BS) for capability information of a user equipment (UE); and code for, in response to the query, providing an indication to the BS of the switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 74 (depends on 73) The computer readable medium of claim 73, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 75 (depends on 73) The computer readable medium of claim 73, wherein the switching capability is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 76 (depends on 73) The computer readable medium of claim 73, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 77 (depends on 73) The computer readable medium of claim 73, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 78 (depends on 73) The computer readable medium of claim 73, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 79 (depends on 73) The computer readable medium of claim 73, further comprising code for receiving a CA configuration in response to providing the indication. ### Claim 80 A non-transitory computer readable medium storing computer executable code thereon for wireless communications, comprising: code for sending a query to a user equipment (UE) for capability information of the UE; and code for, in response to the query, receiving an indication of switching capability information of the UE for one or more carrier aggregation (CA) configurations, the switching capability information associated with switching between a first component carrier (CC) for transmission of a first uplink signal and a second CC for transmission of a second uplink signal, wherein the switching capability information comprises at least one of: CCs supported by the UE, CCs between which the UE supports switching, or a switching time associated with switching between different CCs. ### Claim 81 (depends on 80) The computer readable medium of claim 80, wherein the switching capability of the UE is based on at least one of: UE capability, whether the CCs are contiguous CCs, or whether the CCs are inter-band CCs. ### Claim 82 (depends on 80) The computer readable medium of claim 80, wherein the first uplink signal comprises at least one of: a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 83 (depends on 80) The computer readable medium of claim 80, wherein the second uplink signal comprises a sounding reference signal (SRS). ### Claim 84 (depends on 80) The computer readable medium of claim 80, wherein the one or more CA configurations comprise a CA configuration that the UE is currently configured with. ### Claim 85 (depends on 80) The computer readable medium of claim 80, wherein the one or more CA configurations comprise potential CA configurations. ### Claim 86 (depends on 80) The computer readable medium of claim 80, further comprising code for providing a CA configuration in response to receiving the indication. ### Claim 87 A non-transitory computer readable medium storing computer executable code thereon for wireless communications, comprising: code for interrupting an uplink transmission on a first component carrier (CC) to switch between the first CC and a second CC to transmit an uplink reference signal on the second CC; and code for adjusting one or more parameters or parameter values of the uplink transmission on the first CC to account for the interrupting communication on the second CC. ### Claim 88 (depends on 87) The computer readable medium of claim 87, wherein interrupting communication on the first CC to switch between the first CC and the second CC includes interrupting communication caused by at least one of switching to the second CC from the first CC to transmit the uplink reference signal on the second CC or switching back from the second CC to the first CC to resume the uplink transmission on the first CC. ### Claim 89 (depends on 87) The computer readable medium of claim 87, wherein the second CC is a CC configured for downlink data transmission only. ### Claim 90 (depends on 87) The computer readable medium of claim 87, wherein adjusting the one or more parameters or parameter values comprises adjusting, based on a time to switch between the first CC and the second CC, a transmit power level associated with one or more symbols of a physical channel for the uplink transmission on the first CC. ### Claim 91 (depends on 87) The computer readable medium of claim 87, wherein the uplink transmission on the first CC comprises at least one of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). ### Claim 92 (depends on 87) The computer readable medium of claim 87, wherein the reference signal comprises a sounding reference signal (SRS). ### Claim 93 (depends on 87) The computer readable medium of claim 87, wherein adjusting the one or more parameters or parameter values comprises adjusting resources used for the uplink transmission on the first CC. ### Claim 94 (depends on 87) The computer readable medium of claim 87, further comprising: code for receiving a set of parameter values, from a base station (BS), the parameter values associated with at least one of: different durations of the interruption or different types of uplink transmission; and code for determining the adjustment for the one or more parameters or parameter values based on the received set of parameters values and the associated durations or uplink transmission types. ### Claim 95 (depends on 94) The computer readable medium of claim 94, wherein the set of parameter values is received via at least one of a system information block (SIB) broadcast or radio resource control (RRC) signaling. ### Claim 96 (depends on 87) The computer readable medium of claim 87, further comprising receiving an indication from a base station (BS) of the adjustment for the one or more parameters or parameter values.