Power control techniques for uplink control channels on multiple component carriers - Patents.com

Abstract

Methods, systems, and devices for wireless communications are described for uplink carrier aggregation in which uplink control channel communications may be transmitted on a primary component carrier (CC) and one or more secondary CCs. Uplink transmit power control for the control channel communications may be determined based on a power control configuration provided by a base station. The primary and secondary CCs may use the same set of power control parameters based on being in the same frequency band, and may use different power control parameters when one or more of the CCs are in different frequency bands. Power control commands to increase or decrease transmit power may be accumulated per CC or across multiple CCs based at least in part on the power control configuration.

Description

[Technical field]

[0001] cross reference This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 167,579, filed March 29, 2021, by HUANG et al., entitled "POWER CONTROL TECHNIQUES FOR UPLINK CONTROL CHANNELS ON MULTIPLE COMPONENT CARRIERS," and U.S. Patent Application No. 17 / 559,846, filed December 22, 2021, by HUANG et al., entitled "POWER CONTROL TECHNIQUES FOR UPLINK CONTROL CHANNELS ON MULTIPLE COMPONENT CARRIERS," each of which is assigned to the assignee of the present application.

[0002] The following relates to wireless communications including power control techniques for uplink control channels on multiple component carriers. [Background technology]

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasts, and the like. These systems may be capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE), LTE Advanced (LTE-A), or LTE-A Pro systems, and fifth generation (5G) systems, sometimes referred to as New Radio (NR) systems. These systems may employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal FDMA (OFDMA), or Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may in some cases be known as user equipment (UE).

[0004] In some cases, the UE and base station may use multiple component carriers for communication, where each component carrier may carry uplink communication from the UE to the base station, downlink communication from the base station to the UE, or a combination thereof. Such techniques can expand the amount of data that can be transferred between the UE and the base station and reduce the latency of the communication. Techniques for further enhancement of communication using multiple component carriers can help to further increase data rates and reduce the latency of the communication. Summary of the Invention [Means for solving the problem]

[0005] The described techniques relate to improved methods, systems, devices, and apparatuses that support power control techniques for uplink control channels on multiple component carriers. In various aspects, the described techniques provide uplink power control for uplink control channel transmissions on multiple configured uplink component carriers (CCs). In some cases, uplink control channel communications (e.g., physical uplink control channel (PUCCH) communications) may be transmitted on a primary component carrier (PCC) or a secondary component carrier (SCC), and uplink power control for the control channel communications may be determined based on a power control configuration provided by a base station. In some cases, the PCC and SCC may use the same set of power control parameters based on the PCC and SCC being in the same frequency band. In other cases, the PCC and SCC may use different power control parameters based on the PCC and SCC being in different frequency bands. Additionally or alternatively, power control commands to increase or decrease transmission power may be accumulated per CC or across multiple CCs based at least in part on the power control configuration.

[0006] A method for wireless communications in a user equipment (UE) is described. The method may include receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier, transmitting a first uplink control channel communication to a base station via the primary component carrier using a first uplink transmit power based on the power control information, and transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based on the power control information.

[0007] An apparatus for wireless communication in a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier; transmit the first uplink control channel communication to a base station via the primary component carrier using a first uplink transmit power based on the power control information; and transmit the second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based on the power control information.

[0008] Another apparatus for wireless communications in a UE is described. The apparatus may include means for receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier, means for transmitting a first uplink control channel communication via the primary component carrier to a base station using a first uplink transmit power based on the power control information, and means for transmitting a second uplink control channel communication via the secondary component carrier to the base station using a second uplink transmit power based on the power control information.

[0009] A non-transitory computer-readable medium storing code for wireless communications in a UE is described, the code may include instructions executable by a processor to receive an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier, transmit the first uplink control channel communication to a base station via the primary component carrier using a first uplink transmit power based on the power control information, and transmit the second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based on the power control information.

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving an uplink carrier aggregation configuration may include operations, features, means, or instructions for receiving a first power control configuration for a primary component carrier and a second power control configuration for a secondary component carrier. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration and the second power control configuration include parameters of p0-nominal, p0-Set, pathlossReferenceRSs, and Physical Uplink Control Channel (PUCCH)-SpatialRelationInfo.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first power control configuration may be received for each component carrier in a first group of component carriers (e.g., component carriers in a first frequency band), and a second power control configuration may be received for each component carrier in a second group of component carriers (e.g., component carriers in a second frequency band). In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration and the second power control configuration are received in radio resource control (RRC) signaling that provides uplink control channel power configuration parameters for the configured component carriers. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration includes a first indication of one or more component carriers in the first frequency band that should use the first power control configuration, and the second power control configuration includes a second indication of one or more component carriers in the second frequency band that should use the second power control configuration. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration and the second power control configuration may be received in RRC signaling that provides an uplink control channel power configuration parameter and a corresponding list of component carriers for each power control configuration. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, in an uplink carrier aggregation configuration, the primary component carrier corresponds to a primary cell (PCell) and the secondary component carrier corresponds to a secondary cell (SCell).

[0012] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving from the base station a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier, receiving from the base station a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier, and applying one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the applying may include operations, features, means, or instructions for applying both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier (e.g., based on both the primary component carrier and the secondary component carrier being in the same frequency band). In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the applying may include an operation, feature, means, or instructions for applying a first power control command to a primary component carrier and a second power control command to a secondary component carrier (e.g., based on the primary component carrier and the secondary component carrier being in different frequency bands). Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include an operation, feature, means, or instructions for receiving an indication from the base station indicating whether to apply the power control commands per component carrier or across multiple component carriers, and one or more of the first power control command or the second power control command is applied to each component carrier based on the indication.

[0013] A method for wireless communication in a base station is described that may include transmitting, to a user equipment, an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, where the uplink carrier aggregation configuration enables uplink control channel communication on the primary component carrier and the secondary component carrier and provides power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier, receiving a first uplink control channel communication from the UE via the primary component carrier, where a first uplink transmit power of the first uplink control channel communication is based on the power control information, and receiving a second uplink control channel communication from the UE via the secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information.

[0014] An apparatus for wireless communication in a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: transmit, to a user equipment, an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier; receive a first uplink control channel communication from the UE via the primary component carrier, a first uplink transmit power of the first uplink control channel communication based on the power control information; and receive a second uplink control channel communication from the UE via the secondary component carrier, a second uplink transmit power of the second uplink control channel communication based on the power control information.

[0015] Another apparatus for wireless communications in a base station is described, which may include means for transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to a user equipment, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier, means for receiving a first uplink control channel communication from the UE via the primary component carrier, where a first uplink transmit power of the first uplink control channel communication is based on the power control information, and means for receiving a second uplink control channel communication from the UE via the secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information.

[0016] A non-transitory computer-readable medium storing code for wireless communications in a base station is described, the code may include instructions executable by a processor to: transmit, to a user equipment, an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier; receive a first uplink control channel communication from the UE via the primary component carrier, a first uplink transmit power of the first uplink control channel communication based on the power control information; and receive a second uplink control channel communication from the UE via the secondary component carrier, a second uplink transmit power of the second uplink control channel communication based on the power control information.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, transmitting the uplink carrier aggregation configuration may include an operation, feature, means, or instruction for transmitting a first power control configuration for a primary component carrier and a second power control configuration for a secondary component carrier. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration is provided for each component carrier in a first frequency band, and the second power control configuration is provided for each component carrier in a second frequency band. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration and the second power control configuration may be provided in RRC signaling that provides uplink control channel power configuration parameters for the configured component carriers.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration includes a first indication of a first group of component carriers for which the first power control configuration should be used, and the second power control configuration includes a second indication of a second group of component carriers for which the second power control configuration should be used. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first power control configuration and the second power control configuration may be provided in RRC signaling that provides uplink control channel power configuration parameters and a list of corresponding component carriers for each power control configuration. In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, in an uplink carrier aggregation configuration, the primary component carrier corresponds to a primary cell (PCell) and the secondary component carrier corresponds to a secondary cell (SCell).

[0019] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting to the UE a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier and transmitting to the UE a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier, the UE being configured to apply one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier. Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for configuring the UE to apply both the first and second power control commands to each of the primary and secondary component carriers. Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include an operation, feature, means, or instruction for configuring the UE to apply a first power control command to a primary component carrier and a second power control command to a secondary component carrier. Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may further include an operation, feature, means, or instruction for transmitting an indication to the UE indicating whether to apply the power control command per component carrier or across multiple component carriers. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 illustrates an example of a wireless communication system that supports power control techniques for uplink control channels on multiple component carriers, according to aspects of the present disclosure. [Diagram 2] FIG. 1 illustrates an example of a portion of a wireless communications system that supports power control techniques for uplink control channels on multiple component carriers, according to aspects of the present disclosure. [Diagram 3]FIG. 2 illustrates an example of component carrier resources supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 4A] FIG. 1 illustrates an example of a power control configuration that supports a power control technique for an uplink control channel on multiple component carriers, according to an aspect of the present disclosure. [Figure 4B] FIG. 1 illustrates an example of a power control configuration that supports a power control technique for an uplink control channel on multiple component carriers, according to an aspect of the present disclosure. [Diagram 5] FIG. 1 illustrates an example of a closed loop power control that supports a power control technique for an uplink control channel on multiple component carriers, according to an aspect of the present disclosure. [Figure 6] FIG. 1 illustrates an example of a process flow for supporting a power control technique for an uplink control channel on multiple component carriers, according to an aspect of the disclosure. [Figure 7] 1 is a block diagram of a device that supports power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 8] 1 is a block diagram of a device that supports power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 9] FIG. 1 is a block diagram of a communications manager supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 10] FIG. 1 is a diagram of a system including a device that supports power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 11] 1 is a block diagram of a device that supports power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 12]1 is a block diagram of a device that supports power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 13] FIG. 1 is a block diagram of a communications manager supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 14] FIG. 1 is a diagram of a system including a device that supports power control techniques for uplink control channels on multiple component carriers, according to an aspect of the disclosure. [Figure 15] 1 is a flowchart illustrating a method for supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 16] 1 is a flowchart illustrating a method for supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 17] 1 is a flowchart illustrating a method for supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 18] 1 is a flowchart illustrating a method for supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 19] 1 is a flowchart illustrating a method for supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 20] 1 is a flowchart illustrating a method for supporting power control techniques for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Some wireless communication systems may include communication devices such as user equipment and base stations, e.g., eNodeB (eNB), Next Generation NodeB or Giga NodeB (any of which may be referred to as gNB), that may support multiple radio access technologies. Examples of radio access technologies include 4G systems, such as Long Term Evolution (LTE) systems, and Fifth Generation (5G) systems, which may be referred to as New Radio (NR) systems. The communication devices, in some examples, may support one or more of the exemplary radio access technologies listed above. A user equipment (UE) may communicate with a base station in a wireless communication system. The base station may transmit downlink communications to the UE, and the UE may transmit uplink communications to the base station. The downlink and uplink transmissions may include data and control transmissions. For example, the UE may transmit an uplink control transmission in a physical uplink control channel (PUCCH) transmission. The UE may transmit a PUCCH transmission, such as uplink control information (UCI) on the PUCCH, to the base station using a configured PUCCH scheme (e.g., by PUCCH type or format). Furthermore, in some cases, communications between a base station and a UE may use carrier aggregation (CA) techniques in which multiple component carriers (CCs) may be configured to carry downlink communications, uplink communications, or both.

[0022] For PUCCH transmission, the UE may determine a power level of the PUCCH transmission based on an uplink power control configuration. In some deployments, PUCCH transmission may be provided only on a primary component carrier (PCC), which may be referred to in some cases as a primary cell (PCell). In such cases, an uplink power control configuration for PUCCH transmission is provided for the PCC. However, in some cases, it may be beneficial to transmit the PUCCH on one or more secondary component carriers (SCCs or SCells), which may allow the PUCCH to be transmitted with lower latency due to earlier availability of resources for the PUCCH on the SCCs compared to the PCC. Furthermore, uplink control channel transmissions may use a different transmit power than that used for uplink shared channel communications (e.g., physical uplink shared channel (PUSCH) transmissions). In various aspects as described herein, power control techniques for uplink control channel transmissions on a PCC and one or more SCCs are provided, and a UE may use such techniques to determine an uplink transmit power for uplink control channel transmissions on a PCC, one or more SCCs, or a combination thereof.

[0023] In some cases, open-loop power control may be used and a separate power control configuration may be provided for each CC, which may indicate a separate initial power (Po) and reference signal ID for each CC. In some cases, in intraband CA, a common power control configuration may be provided for multiple intraband CCs. In some cases, a power control configuration may be provided separately for each CC by duplicating the power control configuration provided for the PCC across each intraband SCC. In other cases, a power control configuration may be provided indicating the CC to which it applies, such as by an information field added to the configuration information listing the CCs. In the case of interband CA, different power control configurations may be provided for CCs in different bands. In some cases, in closed-loop power control, power control commands may be provided as absolute power control per CC. In some cases, in absolute power control, power control commands are applied only to the CC if it is determined that the PUCCH is transmitted. In other cases, closed-loop power control may be provided as an accumulated adjustment to the transmit power. If an accumulated adjustment is used for power control, the UE may accumulate power control commands separately for each CC or across the CCs. In some cases, power control commands may be accumulated separately for CCs in different bands, and power control commands may be accumulated across CCs in the case of intraband CCs. In some cases, the base station may configure the UE to perform accumulation of power control commands per CC or across CCs.

[0024] Aspects of the present disclosure are first described in the context of a wireless communication system, and are further illustrated by and described with reference to CC groups and resources, process flows, apparatus diagrams, system diagrams, and flow charts for power control techniques for uplink control channels on multiple component carriers.

[0025] 1 illustrates an example of a wireless communication system 100 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0026] The base stations 105 may be distributed throughout a geographic area to form a wireless communication system 100 and may be devices in different forms or with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals via one or more radio access technologies.

[0027] The UEs 115 may be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be fixed or mobile or both at different times. The UEs 115 may be devices in different forms or with different capabilities. Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment) as shown in FIG. 1.

[0028] The base stations 105 may communicate with the core network 130, with each other, or both. For example, the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface). The base stations 105 may communicate with each other over the backhaul links 120 (e.g., via an X2, Xn, or other interface), either directly (e.g., directly between the base stations 105), or indirectly (e.g., via the core network 130), or both. In some examples, the backhaul links 120 may be or include one or more wireless links.

[0029] One or more of the base stations 105 described herein may include or be referred to by those skilled in the art as a base transceiver station, radio base station, access point, radio transceiver, Node B, eNode B (eNB), Next Generation Node B or Giga Node B (any of which may be referred to as a gNB), Home Node B, Home eNode B, or other suitable terminology.

[0030] The UE 115 may include or be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, and a "device" may also be referred to as a unit, a station, a terminal, or a client, among other examples. The UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, the UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, among other examples, which may be implemented in various articles, such as an appliance, or a vehicle, a meter, among other examples.

[0031] The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may act as relays, as shown in FIG. 1, as well as base stations 105 and network equipment, including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples.

[0032] The UE 115 and the base station 105 may wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure to support the communication link 125. For example, a carrier used for the communication link 125 may include a portion (e.g., a bandwidth part (BWP)) of a radio frequency spectrum band that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry collection signaling (e.g., synchronization signals, system information), control signaling that coordinates operation on the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0033] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have collection or control signaling to coordinate operation with respect to other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be arranged according to a channel raster for discovery by the UE 115. A carrier may operate in a standalone mode, where initial collection and connection may be made by the UE 115 via the carrier, or the carrier may operate in a non-standalone mode, where a connection is anchored using a different carrier (e.g., of the same or different radio access technology).

[0034] The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UE 115 to the base station 105 or downlink transmissions from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0035] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths for a carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). The devices of the wireless communication system 100 (e.g., the base station 105, the UE 115, or both) may have a hardware configuration that supports communication on a particular carrier bandwidth or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., a sub-band, BWP) or all of the carrier bandwidth.

[0036] A signal waveform transmitted on a carrier may be composed of multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may consist of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate of the UE 115 may be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communication with the UE 115.

[0037] One or more numerologies for a carrier may be supported, where the numerology may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier may be divided into one or more BWPs having the same or different numerologies. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for the UE 115 may be limited to one or more active BWPs.

[0038] The time interval for the base station 105 or the UE 115 may be, for example, T s =1 / (Δf max N f ) seconds, or expressed in multiples of a base time unit, where Δf max may represent the maximum supported subcarrier spacing, and N fmay represent the maximum supported discrete Fourier transform (DFT) size. The communication resource time intervals may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0039] Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into several slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on the subcarrier spacing. Each slot may include several symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). In some wireless communications systems 100, a slot may be further divided into multiple minislots containing one or more symbols. Excluding the cyclic prefix, each symbol period may include one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the frequency band of operation.

[0040] A subframe, slot, minislot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0041] The physical channels may be multiplexed on the carriers according to various techniques. The physical control channels and the physical data channels may be multiplexed on the downlink carriers using, for example, one or more of a time division multiplexing (TDM), a frequency division multiplexing (FDM), or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for the physical control channel may be defined by a number of symbol periods and may span the system bandwidth of the carrier or a subset of the system bandwidth. One or more control regions (e.g., a CORESET) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels arranged in a cascaded manner. The aggregation level for the control channel candidates may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for sending control information to multiple UEs 115 and a UE-specific search space set for sending control information to a particular UE 115.

[0042] Each base station 105 may provide communication coverage via one or more cells, e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof. The term "cell" may refer to a logical communication entity used for communication with the base station 105 (e.g., on a carrier) and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) to distinguish neighboring cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion (e.g., a sector) of the geographic coverage area 110 in which the logical communication entity operates. Such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area, depending on various factors such as the capabilities of the base station 105. For example, a cell may be or include a building, a subset of a building, or an outside space between or overlapping with the geographic coverage area 110, among other examples.

[0043] A macro cell may generally cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 115 subscribing to the service of a network provider supporting the macro cell. A small cell may be associated with a lower power base station 105 compared to a macro cell, and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell may provide unrestricted access to UEs 115 subscribing to the service of a network provider, or may provide restricted access to UEs 115 that have an association with the small cell (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with a user in a home or office). A base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.

[0044] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, Narrowband IoT (NB-IoT), enhanced Mobile Broadband (eMBB)) that may provide access to different types of devices.

[0045] In some examples, the base stations 105 may be mobile and thus provide communication coverage to moving geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include heterogeneous networks, for example, where different types of base stations 105 provide coverage to various geographic coverage areas 110 using the same or different radio access technologies.

[0046] Some UEs 115, such as MTC devices or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technologies that allow devices to communicate with each other or with the base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that incorporate sensors or meters to measure or capture information and relay that information to a central server or application program that utilizes such information or presents the information to a human who interacts with the application program. Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0047] The wireless communication system 100 may be configured to support ultra-reliable or low latency communications, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low latency communications (URLLC) or mission-critical communications. The UE 115 may be designed to support ultra-reliable, low latency, or critical functions (e.g., mission-critical functionality). Ultra-reliable communications may include private or group communications and may be supported by one or more mission-critical services, such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include service prioritization, and the mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency may be used interchangeably herein.

[0048] In some examples, the UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) protocol or a D2D protocol). One or more UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or may not be able to receive transmissions from the base station 105 in some examples. In some examples, a group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication occurs between UEs 115 without the involvement of the base station 105.

[0049] In some systems, the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UE 115). In some examples, the vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. The vehicles may signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, the vehicles in the V2X system may communicate with roadside infrastructure, such as roadside units, and / or with a network via one or more network nodes (e.g., base stations 105) using vehicle-to-network (V2N) communication.

[0050] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) that manages access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) that routes packets or interconnects to external networks. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for the UEs 115 served by the base stations 105 associated with the core network 130. User IP packets may be forwarded through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to one or more network operators' IP services 150. The IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0051] Some of the network devices, such as the base station 105, may include subcomponents, such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transmitting entities 145, which may be referred to as a radio head, a smart radio head, or a transmit receiving point (TRP). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or integrated into a single network device (e.g., the base station 105).

[0052] The wireless communication system 100 may typically operate using one or more frequency bands within the range of 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region is commonly known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range in length from approximately 1 decimeter to 1 meter. Although UHF waves may be blocked or redirected by buildings and environmental features, these waves may penetrate structures sufficiently for a macrocell to serve UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmissions using lower frequencies and longer waves in the shortwave (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0053] The wireless communication system 100 may also operate in the super high frequency (SHF) region, also known as the centimeter band, using a frequency band from 3 GHz to 30 GHz, or in the extremely high frequency (EHF) region of the spectrum, also known as the millimeter band (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antennas of the respective devices may be smaller and more closely spaced than the UHF antennas. In some examples, this may facilitate the use of antenna arrays within the devices. However, propagation of EHF transmissions may experience more atmospheric attenuation and shorter distances than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of the bands across these frequency regions may vary by country or regulatory body.

[0054] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ Licensed Assisted Access (LAA), LTE Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in an unlicensed radio frequency spectrum band, devices such as the base station 105 and the UE 115 may employ carrier sensing for collision detection and avoidance. In some examples, operation in an unlicensed band may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA). Operation in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0055] The base station 105 or UE 115 may be equipped with multiple antennas that may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that may support MIMO operations or transmit or receive beamforming. For example, the antennas or antenna arrays of one or more base stations may be co-located in an antenna assembly such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located in diverse geographic locations. The base station 105 may have an antenna array with several rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panels may support radio frequency beamforming for signals transmitted through the antenna ports.

[0056] A base station 105 or UE 115 may use MIMO communications to exploit multipath signal propagation and increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing. The multiple signals may be transmitted by a transmitting device via different antennas or different combinations of antennas, for example. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). The different spatial layers may be associated with different antenna ports used for channel measurements and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0057] Beamforming, sometimes referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used in a transmitting or receiving device (e.g., base station 105, UE 115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated through antenna elements of an antenna array such that some signals propagating in a particular orientation relative to the antenna array are subject to constructive interference and other signals are subject to destructive interference. Adjustment of signals communicated through antenna elements may include the transmitting or receiving device applying an amplitude offset, a phase offset, or both to signals conveyed through an antenna element associated with the device. The adjustment associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., relative to the antenna array of the transmitting or receiving device, or to some other orientation).

[0058] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communication at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer may establish, configure, and maintain an RRC connection between the UE 115 and the base station 105 or core network 130, which supports radio bearers for user plane data. In the physical layer, the transport channels may be mapped to physical channels.

[0059] The UE 115 and the base station 105 may support retransmission of data to increase the likelihood of successful reception of the data. Hybrid Automatic Repeat Request (HARQ) feedback is one technique for increasing the likelihood that data is correctly received on the communication link 125. HARQ may include a combination of error detection (e.g., using a Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device may support same-slot HARQ feedback, in which the device may provide HARQ feedback in a particular slot for data received in a previous symbol in that slot. In other cases, the device may provide HARQ feedback in a subsequent slot or according to some other time interval.

[0060] In some cases, uplink carrier aggregation may be used for communications between one or more UEs 115 and an associated serving base station 105. Additionally, in some cases, uplink control channel communications may be transmitted on a PCC and one or more SCCs, and uplink power control for the control channel communications may be determined at the UE 115 based on a power control configuration provided by the base station 105. In some cases, the PCC and SCC may use the same set of power control parameters based on the PCC and SCC being in the same frequency band. In other cases, the PCC and SCC may use different power control parameters based on the PCC and SCC being in different frequency bands. Additionally or alternatively, power control commands to increase or decrease transmit power may be accumulated per CC or across multiple CCs based at least in part on the power control configuration.

[0061] FIG. 2 illustrates an example of a wireless communication system 200 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. The UE 115-a may be an example of a UE 115 as described with respect to FIG. 1, and the base station 105-a may be an example of a base station 105 as described with respect to FIG. 1. The base station 105-a may serve one or more UEs 115, including the UE 115-a, within a coverage area 110-a. The base station 105-a and the UE 115-a in this example may exchange uplink and downlink communications using multiple CCs 205, including a first CC 205-a, a second CC 205-b, and a third CC 205-c.

[0062] In some cases, the UE 115-a may be configured with a PUCCH group 220 that includes the PCC 225, the first SCC 230, or the second SCC 235. In various existing systems, the PUCCH 210 may be transmitted only on the PCC 225, but in some cases, a PUCCH 210 carrier switch may be performed in which one or more of the first SCC 230 or the second SCC 235 may be used to transmit the PUCCH 210 to provide additional opportunities for UCI transmission. In some cases, power control may be configured for the PUCCH 210 transmission according to various techniques as described herein. In some cases, the power control configuration may be provided to the UE 115-a in the PDCCH 215. In some cases, the power control configuration may be provided in radio resource control (RRC) signaling, in one or more MAC control elements (CE), in downlink control information (DCI), or any combination thereof. Such techniques may, for example, provide reduced latency in transmitting HARQ acknowledgment feedback for one or more downlink transmissions, which may increase the efficiency of wireless communications.

[0063] 3 illustrates an example of a component carrier resource 300 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. In some examples, the component carrier resource 300 may implement aspects of the wireless communication system 100 or 200. In this example, a base station (e.g., the base station 105 of FIG. 1 or FIG. 2) may configure multiple CCs in a UE (e.g., the UE 115 of FIG. 1 or FIG. 2), which may include configuring a PUCCH group 305.

[0064] As shown in FIG. 3, the PUCCH group 305 may include a PCC 310, a first SCC 315, and a second SCC 320. In this example, the PCC 310 may include a downlink slot (D) for downlink communication to the UE, an uplink slot (U) for uplink communication to the base station, and a special slot (S), which includes both some downlink and uplink resources, and a transmission gap that may be used at the UE to adjust the RF components from the downlink configuration to the uplink configuration. In the example of FIG. 3, downlink resources 325 and uplink resources 330 for the CC are shown. In this example, for the PCC 310 and the first SCC 315, the slot configuration may be DDSUDDSU, with an offset of 2 slots between the PCC 310 and the first SCC 315. Furthermore, the second SCC 320 may be a frequency division duplex (FDD) carrier, and only the uplink portion is shown in FIG. 3. Such a PUCCH group 305 may enable UCI to be transmitted using one or more of the PCC 310 or the first SCC 315 or the second SCC 320. By providing the ability to transmit UCI on the first SCC 315 or the second SCC 320, latency for some types of communications may be reduced. For example, when a UE has HARQ feedback to be transmitted to a base station, additional uplink resources may be provided, which may reduce latency associated with the HARQ feedback, as compared to when UCI may be transmitted using only the PCC 310. The reduced HARQ feedback latency may provide that any retransmissions may be initiated more quickly, which may help provide higher throughput and reliability. Furthermore, the reduced HARQ feedback latency may release HARQ process IDs for subsequent transmissions more quickly, which may allow additional transmissions to be initiated and may also help reduce processing resource usage.

[0065] In some cases, the PUCCH transmission may be transmitted according to a power control configuration that may provide different power control for PUCCH and PUSCH communications. In some cases, the power control for the PUCCH transmission may be based on several power control parameters, including, for example, p0-nominal, which may provide a cell-specific Po (e.g., a nominal starting power for uplink transmissions), and P_o_UE_PUCCH, which may provide a UE-specific value chosen from a set p0-Set. The p0-Set parameter may indicate a set for the CC, and the cardinality of the set is based on a maximum number of PUCCH Po per set (e.g., maxNrofPUCCH-P0-PerSet). For each entry in P0-Set, the parameters may include {p0-PUCCH-Id, p0-PUCCH-Value}. The particular value of p0-PUCCH-Value that the UE should apply for the PUCCH transmission may be based on a particular p0-PUCCH-Id in the configured spatial relationship information, which may be provided, for example, in one or more PUCCH-SpatialRelationInfo configurations. In some cases, the UE may be configured with multiple PUCCH-SpatialRelationInfo by RRC, and the UE may be instructed by MAC-CE which PUCCH-SpatialRelationInfo to use. The power control configuration may also provide reference signal identification information of a reference signal that may be used by the UE to measure path loss. For example, path loss may be measured based on the pucch-PathlossReferenceRS-Id indicated in the RRC parameter PUCCH-SpatialRelationInfo.

[0066] In some cases, dynamic power control may be implemented, in which power control commands are signaled in the DCI. The power control commands may be used to dynamically adjust the PUCCH transmit power above Po. Two types of dynamic power control commands may be used, including a Type 1 command (e.g., a 2-bit power control command indicating whether the UE should increment or decrement the transmit power by a configured step amount) that provides an accumulated dynamic power control command, and a Type 2 command that provides absolute power control (e.g., an indication of the transmit power). The UE may be configured with two dynamic power control loops for PUCCH transmission (e.g., one loop for URLLC and another loop for eMBB). However, for PUCCH, the UE may use only one loop, and which loop is used is indicated by the closedLoopIndex in the RRC parameter PUCCH-SpatialRelationInfo. The final transmit power of the UE may be the sum of the nominal value, the path loss, and the dynamic power control information, resulting in transmit power = Po + path loss + dynamic power control loop output. According to various techniques described herein, such power control techniques may be used in the PCC 310, the first SCC 315, the second SCC 320, or any combination thereof, examples of which are described with reference to Figures 4A, 4B, and 5.

[0067] 4A and 4B show examples of power control configurations 400 and 450 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. In some examples, the power control configurations 400 and 450 may implement aspects of the wireless communication systems 100 or 200. In these examples, a base station (e.g., the base station 105 of FIG. 1 or FIG. 2) may configure multiple CCs in a UE (e.g., the UE 115 of FIG. 1 or FIG. 2).

[0068] In the example of FIG. 4A and FIG. 4B, different CCs may be configured in different frequency bands (e.g., Frequency Range 1 (FR1) bands n1-n98, FR2 bands n257-n261, etc.). As shown in FIG. 4A, a first CC 410, a second CC 415, and a third CC 420 may be configured in a first frequency band 405, and a fourth CC 430 and a fifth CC 435 may be configured in a second frequency band 425. In this example, intraband CCs may use the same configuration providing a common p0-Set and a common PUCCH-SpatialRelationInfo, and CCs in different bands (e.g., in interband CA) may use different p0-Sets per band (or per CC) and different PUCCH-SpatialRelationInfo per band (or per CC). 4A and 4B, the first through third CCs 410-420 may use configuration A, and the fourth and fifth CCs 430-435 may use configuration B. In some cases, the base station may configure the UE with power control configurations of configuration A and configuration B.

[0069] In the example of FIG. 4A, the base station may configure each CC separately such that the first CC 410 is provided with configuration A 440-a, the second CC 415 is provided with configuration A 440-b, the third CC 420 is provided with configuration A 440-c, the fourth CC 430 is provided with configuration B 445-a, and the fifth CC 435 is provided with configuration B 445-b. Such configurations may be provided by RRC signaling to configure PUCCH-SpatialRelationInfo and p0-Set per CC. In this example, for CCs in the same band (same band in intraband CA or interband CA), the base station may replicate the same PUCCH-SpatialRelationInfo and the same p0-Set for those CCs.

[0070] In the example of FIG. 4B, the base station may provide a single configuration for a particular frequency band, and thus provide configuration A 455 for the first through third CCs 410-420 and configuration B 460 for the fourth through fifth CCs 430-435. In such a case, the base station may provide an RRC configuration per band (i.e., intraband CA is collapsed to a single band). In each configuration for a band, a field may be provided (e.g., in the spatial relationship information, or any other power control configuration information) to indicate which CC the configuration applies to. For example, the base station may provide RRC signaling including a PUCCH-CC-List field in "PUCCH-Config", in "PUCCH-SpatialRelationInfo", in "PUCCH-powerControl", or in "p0-Set". Based on the power control configuration, the UE may set the transmit power for PUCCH transmission on each of the CCs configured for PUCCH transmission.

[0071] 5 illustrates an example of a closed loop power control 500 supporting a power control technique for an uplink control channel on multiple component carriers according to aspects of the disclosure. In some examples, the closed loop power control 500 may implement aspects of the wireless communication system 100 or 200. In this example, a base station (e.g., the base station 105 of FIG. 1 or FIG. 2) may configure multiple CCs in a UE (e.g., the UE 115 of FIG. 1 or FIG. 2).

[0072] In the example of FIG. 5, the base station may configure a PUCCH group 505 having a first CC 510 and a second CC 515. Furthermore, in this case, power control commands, such as a Type 1 command providing accumulated dynamic power control commands, may be used for the PUCCH transmission 520. In this example, a first power control command 525 may be received for the first CC 510, a second power control command 530 may be received for the second CC 515, a third power control command 535 may be received for the first CC 510, a fourth power control command 540 may be received for the second CC 515, a fifth power control command 545 and a sixth power control command 550 may be received for the first CC 510, and a seventh power control command 555 may be received for the second CC 515.

[0073] In some cases, the UE may accumulate power control commands for the PUCCH across the first CC 510 and the second CC 515. In such cases, the power control commands 525-555 may be accumulated and applied to the uplink transmit power regardless of which CC a particular power control command is associated with. In some cases, such power control accumulation techniques may be used when both the first CC 510 and the second CC 515 are intraband CCs (e.g., channel conditions per CC may be very similar). In other cases, the UE may accumulate power control commands separately for each of the first CC 510 and the second CC 515. In such cases, the first power control command 525, the third power control command 535, the fifth power control command 545, and the sixth power control command 550 may be applied to the PUCCH transmission 520 on the first CC 510. Similarly, the second power control command 530, the fourth power control command 540, and the seventh power control command 555 may be applied to the PUCCH transmission 520 on the second CC 515. In some cases, such power control accumulation techniques may be used when the first CC 510 and the second CC 515 are inter-band CCs (e.g., channel conditions per CC may differ). In some cases, cross-CC power control command accumulation may be applied to any CCs in the same band, and separate accumulation is performed for different bands. In some cases, in intra-band CA, the base station may configure the UE to perform cross-CC accumulation or to perform accumulation separately for each CC.

[0074] FIG. 6 illustrates an example of a process flow 600 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. In some examples, the process flow 600 may implement aspects of the wireless communication systems 100 and 200. The process flow 600 includes a UE 115-b, which may be an example of a UE 115 as described with respect to FIGS. 1 and 2. The process flow 600 also includes a base station 105-b, which may be an example of a base station 105 as described with respect to FIGS. 1 and 2. The UE 115-b and the base station 105-b may implement an uplink control channel power control procedure as described herein.

[0075] In some examples, the operations illustrated in process flow 600 may be performed by hardware (e.g., including circuits, processing blocks, logic components, and other components), code executed by a processor (e.g., software), or any combination thereof. Alternative examples below may be implemented in which some steps are performed in a different order than described, or not performed at all. In some cases, the steps may include additional features not described below, or further steps may be added.

[0076] At 605, the base station 105-b and the UE 115-b may establish a connection over multiple CCs using carrier aggregation. Such a connection may be established according to a connection establishment technique for the wireless communication network, such as through a random access and connection establishment procedure.

[0077] At 610, the base station 105-b may transmit configuration information to the UE 115-b, which may include power control configuration information. In some cases, the power control configuration information may include one or more configurations that may be applied to uplink control channel transmissions on multiple CCs established between the UE 115-b and the base station 105-b. At 615, the base station 105-b may transmit an uplink control channel grant allocating uplink resources to the UE 115-b for uplink control channel transmissions (e.g., UCI transmissions on the PUCCH).

[0078] At 620, the UE 115-b may determine uplink control information to be transmitted to the base station 105-b. Such uplink control information may include, for example, HARQ feedback for one or more downlink transmissions previously transmitted by the base station 105-b or another transmitter.

[0079] At 625, the UE 115-b may determine a CC and uplink resources for the uplink control information transmission. In some cases, the UE 115-b may determine that an SCC should be used for the uplink control information transmission. At 630, the UE 115-b may determine an uplink transmit power for the uplink control information transmission. The UE 115-b may determine the uplink transmit power according to various techniques as described herein, such as based on a power control configuration provided in the SCC to determine an uplink transmit power for a PUCCH transmission. At 635, the UE 115-b may transmit an uplink control channel transmission (e.g., a PUCCH transmission) including the uplink control information using the determined transmit power.

[0080] Optionally, at 640, the base station 105-b and the UE 115-b may perform closed-loop power control, and the base station 105-b may determine one or more power control adjustment values ​​based on one or more uplink communications from the UE 115-b. At 645, the base station 105-b may transmit downlink control information including adjustments to transmit power (e.g., power control commands) to the UE 115-b. At 650, the UE 115-b may update an uplink power control loop based on the received adjustments from the base station 105-b. In some cases, the UE 115-b may accumulate power control commands across CCs in case of intraband CC and accumulate interband power control commands separately for different frequency bands.

[0081] 7 illustrates a block diagram 700 of a device 705 supporting power control techniques for uplink control channels on multiple component carriers according to an aspect of the disclosure. The device 705 may be an example of an aspect of a UE 115 as described herein. The device 705 may include a receiver 710, a transmitter 715, and a communications manager 720. The device 705 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0082] The receiver 710 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). The information may be passed to other components of the device 705. The receiver 710 may utilize a single antenna or a set of multiple antennas.

[0083] The transmitter 715 may provide a means for transmitting signals generated by other components of the device 705. For example, the transmitter 715 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). In some examples, the transmitter 715 may be co-located with the receiver 710 in a transceiver module. The transmitter 715 may utilize a single antenna or a set of multiple antennas.

[0084] The communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be examples of means for performing various aspects of power control techniques for uplink control channels on multiple component carriers as described herein. For example, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

[0085] In some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in hardware (e.g., in a communications management circuit). The hardware may include a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing functions described in this disclosure. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).

[0086] Additionally or alternatively, in some examples, the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communications management software or firmware). When implemented in code executed by a processor, the functions of the communications manager 720, the receiver 710, the transmitter 715, or various combinations or components thereof may be performed by a general purpose processor, a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure).

[0087] In some examples, the communications manager 720 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 710, the transmitter 715, or both. For example, the communications manager 720 may receive information from the receiver 710, send information to the transmitter 715, or be integrated in combination with the receiver 710, the transmitter 715, or both to receive information, transmit information, or perform various other operations as described herein.

[0088] The communications manager 720 may support wireless communications in a UE according to examples as disclosed herein. For example, the communications manager 720 may be configured as, or otherwise support, a means for receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier, and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The communications manager 720 may be configured as, or otherwise support, a means for transmitting a first uplink control channel communication to a base station over the primary component carrier using a first uplink transmit power based on the power control information. The communications manager 720 may be configured as, or otherwise support, a means for transmitting a second uplink control channel communication to a base station over the secondary component carrier using a second uplink transmit power based on the power control information.

[0089] By including or configuring a communications manager 720 according to examples as described herein, the device 705 (e.g., a processor controlling or possibly coupled to the receiver 710, the transmitter 715, the communications manager 720, or a combination thereof) can support techniques for power control of uplink control channel communications of one or more SCCs, which can provide more efficient utilization of communications resources and lower latency transmission of uplink control information.

[0090] 8 illustrates a block diagram 800 of a device 805 supporting power control techniques for uplink control channels on multiple component carriers according to an aspect of the disclosure. The device 805 may be an example of an aspect of a device 705 or a UE 115 as described herein. The device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. The device 805 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0091] The receiver 810 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). The information may be passed to other components of the device 805. The receiver 810 may utilize a single antenna or a set of multiple antennas.

[0092] The transmitter 815 may provide a means for transmitting signals generated by other components of the device 805. For example, the transmitter 815 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). In some examples, the transmitter 815 may be co-located with the receiver 810 in a transceiver module. The transmitter 815 may utilize a single antenna or a set of multiple antennas.

[0093] The device 805, or various components thereof, may be an example of a means for performing various aspects of power control techniques for uplink control channels on multiple component carriers as described herein. For example, the communications manager 820 may include a configuration manager 825, a power control manager 830, or any combination thereof. The communications manager 820 may be an example of an aspect of the communications manager 720 as described herein. In some examples, the communications manager 820, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 810, the transmitter 815, or both. For example, the communications manager 820 may receive information from the receiver 810, send information to the transmitter 815, or be integrated in combination with the receiver 810, the transmitter 815, or both to receive information, transmit information, or perform various other operations as described herein.

[0094] The communications manager 820 may support wireless communications in the UE according to examples as disclosed herein. The configuration manager 825 may be configured as, or otherwise support, a means for receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier, and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The power control manager 830 may be configured as, or otherwise support, a means for transmitting a first uplink control channel communication to a base station over the primary component carrier using a first uplink transmit power based on the power control information. The power control manager 830 may be configured as, or otherwise support, a means for transmitting a second uplink control channel communication to a base station over the secondary component carrier using a second uplink transmit power based on the power control information.

[0095] FIG. 9 illustrates a block diagram 900 of a communications manager 920 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. Communications manager 920 may be an example of aspects of communications manager 720, communications manager 820, or both, as described herein. Communications manager 920, or various components thereof, may be an example of a means for performing various aspects of power control techniques for uplink control channels on multiple component carriers as described herein. For example, communications manager 920 may include a configuration manager 925, a power control manager 930, a frequency band manager 935, a closed loop power control component 940, or any combination thereof. Each of these components may communicate with one another directly or indirectly (e.g., via one or more buses).

[0096] The communications manager 920 may support wireless communications in the UE according to examples as disclosed herein. The configuration manager 925 may be configured as, or otherwise support, a means for receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier, and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The power control manager 930 may be configured as, or otherwise support, a means for transmitting a first uplink control channel communication to a base station over the primary component carrier using a first uplink transmit power based on the power control information. In some examples, the power control manager 930 may be configured as, or otherwise support, a means for transmitting a second uplink control channel communication to a base station over the secondary component carrier using a second uplink transmit power based on the power control information.

[0097] In some examples, to support receiving the uplink carrier aggregation configuration, the frequency band manager 935 may be configured as or otherwise support a means for receiving a first power control configuration for a primary component carrier and a second power control configuration for a secondary component carrier. In some cases, the first power control configuration is applied to one or more component carriers in the first frequency band, and the second power control configuration is applied to one or more component carriers in the second frequency band. In some examples, the first power control configuration and the second power control configuration include parameters of p0-nominal, p0-Set, pathlossReferenceRSs, and PUCCH-SpatialRelationInfo. In some examples, the first power control configuration is received for each component carrier in the first frequency band, and the second power control configuration is received for each component carrier in the second frequency band.

[0098] In some examples, the first power control configuration and the second power control configuration are received in RRC signaling that provides uplink control channel power configuration parameters for the configured component carriers. In some examples, the first power control configuration includes a first indication of one or more component carriers in a first frequency band that should use the first power control configuration, and the second power control configuration includes a second indication of one or more component carriers in a second frequency band that should use the second power control configuration. In some examples, the first power control configuration and the second power control configuration are received in RRC signaling that provides a list of uplink control channel power configuration parameters and corresponding component carriers for each power control configuration.

[0099] In some examples, the closed loop power control component 940 may be configured as or otherwise support a means for receiving from the base station a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier. In some examples, the closed loop power control component 940 may be configured as or otherwise support a means for receiving from the base station a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier. In some examples, the closed loop power control component 940 may be configured as or otherwise support a means for applying one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier.

[0100] In some examples, to support the applying, the frequency band manager 935 may be configured as or otherwise support a means for applying both a first power control command and a second power control command to each of the primary and secondary component carriers (e.g., based on both the primary and secondary component carriers being in the same frequency band). In some examples, to support the applying, the frequency band manager 935 may be configured as or otherwise support a means for applying a first power control command to the primary component carrier and a second power control command to the secondary component carrier (e.g., based on the primary and secondary component carriers being in different frequency bands). In some examples, the closed loop power control component 940 may be configured as or otherwise support a means for receiving an indication from the base station indicating whether to apply the power control command per component carrier or across multiple component carriers, where one or more of the first power control command or the second power control command is applied to each component carrier based on the indication.

[0101] FIG. 10 illustrates a diagram of a system 1000 including a device 1005 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The device 1005 may be an example of or may include components of a device 705, a device 805, or a UE 115 as described herein. The device 1005 may wirelessly communicate with one or more base stations 105, UEs 115, or any combination thereof. The device 1005 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1020, an input / output (I / O) controller 1010, a transceiver 1015, an antenna 1025, a memory 1030, code 1035, and a processor 1040. These components may be in electronic communication or may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) possibly via one or more buses (e.g., a bus 1045).

[0102] The I / O controller 1010 may manage input and output signals for the device 1005. The I / O controller 1010 may also manage peripheral devices that are not integrated into the device 1005. In some cases, the I / O controller 1010 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 1010 may utilize an operating system, such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS / 2®, UNIX®, LINUX®, or another known operating system. Additionally or alternatively, the I / O controller 1010 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, the I / O controller 1010 may be implemented as part of a processor, such as the processor 1040. In some cases, a user may interact with the device 1005 through the I / O controller 1010 or through hardware components controlled by the I / O controller 1010.

[0103] In some cases, the device 1005 may include a single antenna 1025. However, in some other cases, the device 1005 may have two or more antennas 1025 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1015 may communicate bidirectionally via one or more antennas 1025, wired links, or wireless links as described herein. For example, the transceiver 1015 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1015 may also include a modem for modulating packets and providing the modulated packets to one or more antennas 1025 for transmission and demodulating packets received from the one or more antennas 1025. The transceiver 1015, or the transceiver 1015 and one or more antennas 1025, may be an example of a transmitter 715, a transmitter 815, a receiver 710, a receiver 810, or any combination or components thereof as described herein.

[0104] The memory 1030 may include random access memory (RAM) and read only memory (ROM). The memory 1030 may store computer-readable computer-executable code 1035 that includes instructions that, when executed by the processor 1040, cause the device 1005 to perform various functions described herein. The code 1035 may be stored in a non-transitory computer-readable medium, such as a system memory or another type of memory. In some cases, the code 1035 may not be directly executable by the processor 1040, but may (e.g., when compiled and executed) cause a computer to perform functions described herein. In some cases, the memory 1030 may include a basic I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0105] The processor 1040 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1040 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1040. The processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting power control techniques for uplink control channels on multiple component carriers). For example, the device 1005 or a component of the device 1005 may include a processor 1040 and a memory 1030 coupled to the processor 1040, where the processor 1040 and the memory 1030 are configured to perform various functions described herein.

[0106] The communications manager 1020 may support wireless communications in a UE according to examples as disclosed herein. For example, the communications manager 1020 may be configured as, or otherwise support, a means for receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier, and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The communications manager 1020 may be configured as, or otherwise support, a means for transmitting a first uplink control channel communication to a base station over the primary component carrier using a first uplink transmit power based on the power control information. The communications manager 1020 may be configured as, or otherwise support, a means for transmitting a second uplink control channel communication to a base station over the secondary component carrier using a second uplink transmit power based on the power control information.

[0107] By including or configuring a communications manager 1020 according to examples as described herein, the device 1005 can support techniques for power control of uplink control channel communications of one or more SCCs, which can provide more efficient utilization of communications resources, lower latency transmission of uplink control information, and improved communications reliability.

[0108] In some examples, the communications manager 1020 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the transceiver 1015, the one or more antennas 1025, or any combination thereof. Although the communications manager 1020 is shown as a separate component, in some examples, one or more functions described with reference to the communications manager 1020 may be supported or performed by the processor 1040, the memory 1030, the code 1035, or any combination thereof. For example, the code 1035 may include instructions executable by the processor 1040 to cause the device 1005 to perform various aspects of power control techniques for uplink control channels on multiple component carriers as described herein, or the processor 1040 and the memory 1030 may be otherwise configured to perform or support such operations.

[0109] 11 illustrates a block diagram 1100 of a device 1105 supporting power control techniques for uplink control channels on multiple component carriers according to an aspect of the disclosure. The device 1105 may be an example of an aspect of a base station 105 as described herein. The device 1105 may include a receiver 1110, a transmitter 1115, and a communications manager 1120. The device 1105 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0110] The receiver 1110 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). The information may be passed to other components of the device 1105. The receiver 1110 may utilize a single antenna or a set of multiple antennas.

[0111] The transmitter 1115 may provide a means for transmitting signals generated by other components of the device 1105. For example, the transmitter 1115 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). In some examples, the transmitter 1115 may be co-located with the receiver 1110 in a transceiver module. The transmitter 1115 may utilize a single antenna or a set of multiple antennas.

[0112] The communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be examples of a means for performing various aspects of power control techniques for uplink control channels on multiple component carriers as described herein. For example, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may support a method for performing one or more of the functions described herein.

[0113] In some examples, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in hardware (e.g., in a communications management circuit). The hardware may include a processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing functions described in this disclosure. In some examples, the processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by the processor executing instructions stored in the memory).

[0114] Additionally or alternatively, in some examples, the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communications management software or firmware). When implemented in code executed by a processor, the functions of the communications manager 1120, the receiver 1110, the transmitter 1115, or various combinations or components thereof may be performed by a general purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in this disclosure).

[0115] In some examples, the communications manager 1120 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 1110, the transmitter 1115, or both. For example, the communications manager 1120 may receive information from the receiver 1110, send information to the transmitter 1115, or be integrated in combination with the receiver 1110, the transmitter 1115, or both to receive information, transmit information, or perform various other operations as described herein.

[0116] The communications manager 1120 may support wireless communications in the base station according to examples as disclosed herein. For example, the communications manager 1120 may be configured as or otherwise support a means for transmitting to a user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The communications manager 1120 may be configured as or otherwise support a means for receiving a first uplink control channel communication from the UE via the primary component carrier, the first uplink transmit power of the first uplink control channel communication being based on the power control information. The communications manager 1120 may be configured as or otherwise support a means for receiving a second uplink control channel communication from the UE via the secondary component carrier, the second uplink transmit power of the second uplink control channel communication being based on the power control information.

[0117] By including or configuring a communications manager 1120 according to examples as described herein, the device 1105 (e.g., a processor controlling or possibly coupled to the receiver 1110, the transmitter 1115, the communications manager 1120, or a combination thereof) can support techniques for power control of uplink control channel communications of one or more SCCs, which can provide more efficient utilization of communications resources and lower latency transmission of uplink control information.

[0118] 12 illustrates a block diagram 1200 of a device 1205 supporting power control techniques for uplink control channels on multiple component carriers according to an aspect of the disclosure. The device 1205 may be an example of an aspect of a device 1105 or a base station 105 as described herein. The device 1205 may include a receiver 1210, a transmitter 1215, and a communications manager 1220. The device 1205 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses).

[0119] The receiver 1210 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). The information may be passed to other components of the device 1205. The receiver 1210 may utilize a single antenna or a set of multiple antennas.

[0120] The transmitter 1215 may provide a means for transmitting signals generated by other components of the device 1205. For example, the transmitter 1215 may transmit information such as packets, user data, control information, or any combination thereof associated with various traffic channels (e.g., control channels, data channels, traffic channels related to power control techniques for uplink control channels on multiple component carriers). In some examples, the transmitter 1215 may be co-located with the receiver 1210 in a transceiver module. The transmitter 1215 may utilize a single antenna or a set of multiple antennas.

[0121] The device 1205, or various components thereof, may be an example of a means for performing various aspects of power control techniques for uplink control channels on multiple component carriers as described herein. For example, the communications manager 1220 may include a configuration manager 1225, a power control manager 1230, or any combination thereof. The communications manager 1220 may be an example of an aspect of the communications manager 1120 as described herein. In some examples, the communications manager 1220, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the receiver 1210, the transmitter 1215, or both. For example, the communications manager 1220 may receive information from the receiver 1210, send information to the transmitter 1215, or be integrated in combination with the receiver 1210, the transmitter 1215, or both to receive information, transmit information, or perform various other operations as described herein.

[0122] The communications manager 1220 may support wireless communications in the base station according to examples as disclosed herein. The configuration manager 1225 may be configured or otherwise support a means for transmitting to the user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The power control manager 1230 may be configured or otherwise support a means for receiving a first uplink control channel communication from the UE via the primary component carrier, the first uplink transmit power of the first uplink control channel communication being based on the power control information. The power control manager 1230 may be configured with or otherwise support a means for receiving a second uplink control channel communication from the UE via a secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information.

[0123] FIG. 13 illustrates a block diagram 1300 of a communications manager 1320 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The communications manager 1320 may be an example of aspects of the communications manager 1120, the communications manager 1220, or both, as described herein. The communications manager 1320, or various components thereof, may be an example of a means for performing various aspects of the power control techniques for uplink control channels on multiple component carriers, as described herein. For example, the communications manager 1320 may include a configuration manager 1325, a power control manager 1330, a frequency band manager 1335, a closed loop power control component 1340, or any combination thereof. Each of these components may communicate with one another directly or indirectly (e.g., via one or more buses).

[0124] The communications manager 1320 may support wireless communications in the base station according to examples as disclosed herein. The configuration manager 1325 may be configured or otherwise support a means for transmitting to the user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The power control manager 1330 may be configured or otherwise support a means for receiving a first uplink control channel communication from the UE via the primary component carrier, the first uplink transmit power of the first uplink control channel communication being based on the power control information. In some examples, the power control manager 1330 may be configured with or otherwise support a means for receiving a second uplink control channel communication from the UE via a secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information.

[0125] In some examples, to support transmitting the uplink carrier aggregation configuration, the frequency band manager 1335 may be configured as or otherwise support a means for transmitting a first power control configuration for a primary component carrier and a second power control configuration for a secondary component carrier. In some cases, the first power control configuration is applied to one or more component carriers in the first frequency band, and the second power control configuration is applied to one or more component carriers in the second frequency band. In some examples, the first power control configuration is provided per component carrier in the first frequency band, and the second power control configuration is provided per component carrier in the second frequency band. In some examples, the first power control configuration and the second power control configuration are provided in RRC signaling that provides uplink control channel power configuration parameters for the configured component carriers. In some examples, the first power control configuration includes a first indication of one or more component carriers in the first frequency band for which the first power control configuration should be used, and the second power control configuration includes a second indication of one or more component carriers in the second frequency band for which the second power control configuration should be used. In some examples, the first power control configuration and the second power control configuration are provided in RRC signaling that provides uplink control channel power configuration parameters and a list of corresponding component carriers for each power control configuration.

[0126] In some examples, the closed loop power control component 1340 may be configured as or otherwise support a means for transmitting, to the UE, a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier. In some examples, the closed loop power control component 1340 may be configured as or otherwise support a means for transmitting, to the UE, a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier. In some examples, the closed loop power control component 1340 may be configured as or otherwise support a means for applying one or more of the first or second power control commands to one or more of the primary or secondary component carriers.

[0127] In some examples, the frequency band manager 1335 may be configured or otherwise support a means for configuring the UE to apply both a first power control command and a second power control command to each of the primary and secondary component carriers (e.g., based on both the primary and secondary component carriers being in the same frequency band). In some examples, the frequency band manager 1335 may be configured or otherwise support a means for configuring the UE to apply a first power control command to the primary component carrier and a second power control command to the secondary component carrier (e.g., based on the primary and secondary component carriers being in different frequency bands). In some examples, the closed loop power control component 1340 may be configured or otherwise support a means for sending an indication to the UE indicating whether to apply the power control command per component carrier or across multiple component carriers.

[0128] FIG. 14 illustrates a diagram of a system 1400 including a device 1405 supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The device 1405 may be an example of or may include components of a device 1105, device 1205, or base station 105 as described herein. The device 1405 may wirelessly communicate with one or more base stations 105, UEs 115, or any combination thereof. The device 1405 may include components for two-way voice and data communication, including components for transmitting and receiving communications, such as a communications manager 1420, a network communications manager 1410, a transceiver 1415, an antenna 1425, a memory 1430, code 1435, a processor 1440, and an inter-station communications manager 1445. These components may be in electronic communication or may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) possibly via one or more buses (e.g., a bus 1450).

[0129] The network communications manager 1410 may manage communications with the core network 130 (e.g., via one or more wired backhaul links). For example, the network communications manager 1410 may manage the transfer of data communications for client devices, such as one or more UEs 115.

[0130] In some cases, the device 1405 may include a single antenna 1425. However, in some other cases, the device 1405 may have two or more antennas 1425 that may be capable of simultaneously transmitting or receiving multiple wireless transmissions. The transceiver 1415 may communicate bidirectionally via one or more antennas 1425, wired links, or wireless links as described herein. For example, the transceiver 1415 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1415 may also include a modem for modulating packets and providing the modulated packets to one or more antennas 1425 for transmission and demodulating packets received from the one or more antennas 1425. The transceiver 1415, or the transceiver 1415 and one or more antennas 1425, may be an example of the transmitter 1115, the transmitter 1215, the receiver 1110, the receiver 1210, or any combination or components thereof as described herein.

[0131] The memory 1430 may include RAM and ROM. The memory 1430 may store computer-readable computer-executable code 1435 including instructions that, when executed by the processor 1440, cause the device 1405 to perform various functions described herein. The code 1435 may be stored in a non-transitory computer-readable medium, such as a system memory or another type of memory. In some cases, the code 1435 may not be directly executable by the processor 1440, but may (e.g., when compiled and executed) cause a computer to perform functions described herein. In some cases, the memory 1430 may include a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices, among other things.

[0132] The processor 1440 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1440 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1440. The processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1430) to cause the device 1405 to perform various functions (e.g., functions or tasks supporting power control techniques for uplink control channels on multiple component carriers). For example, the device 1405 or a component of the device 1405 may include a processor 1440 and a memory 1430 coupled to the processor 1440, where the processor 1440 and the memory 1430 are configured to perform various functions described herein.

[0133] The inter-station communications manager 1445 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with the UE 115 in cooperation with the other base stations 105. For example, the inter-station communications manager 1445 may coordinate scheduling for transmissions to the UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-station communications manager 1445 may provide an X2 interface within the LTE / LTE-A wireless communications network technology to communicate between the base stations 105.

[0134] The communications manager 1420 may support wireless communications in a base station according to examples as disclosed herein. For example, the communications manager 1420 may be configured with or otherwise support a means for transmitting to a user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier. The communications manager 1420 may be configured with or otherwise support a means for receiving a first uplink control channel communication from a UE via a primary component carrier, the first uplink transmit power of the first uplink control channel communication being based on the power control information. The communications manager 1420 may be configured with or otherwise support a means for receiving a second uplink control channel communication from a UE via a secondary component carrier, the second uplink transmit power of the second uplink control channel communication being based on the power control information.

[0135] By including or configuring a communications manager 1420 according to examples as described herein, the device 1405 can support techniques for power control of uplink control channel communications of one or more SCCs, which can provide more efficient utilization of communications resources, lower latency transmission of uplink control information, and improved communications reliability.

[0136] In some examples, the communications manager 1420 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise cooperating with the transceiver 1415, the one or more antennas 1425, or any combination thereof. Although the communications manager 1420 is shown as a separate component, in some examples, one or more functions described with reference to the communications manager 1420 may be supported or performed by the processor 1440, the memory 1430, the code 1435, or any combination thereof. For example, the code 1435 may include instructions executable by the processor 1440 to cause the device 1405 to perform various aspects of power control techniques for uplink control channels on multiple component carriers as described herein, or the processor 1440 and the memory 1430 may be otherwise configured to perform or support such operations.

[0137] FIG. 15 illustrates a flow chart illustrating a method 1500 for supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The operations of method 1500 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1500 may be performed by a UE 115 as described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.

[0138] At 1505, the method may include receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier. The operations of 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed by a configuration manager 925 as described with reference to FIG. 9.

[0139] At 1510, the method may include transmitting a first uplink control channel communication to the base station via the primary component carrier using a first uplink transmit power based on the power control information. The operations of 1510 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed by a power control manager 930 as described with reference to FIG.

[0140] At 1515, the method may include transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based on the power control information. The operations of 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed by a power control manager 930 as described with reference to FIG.

[0141] FIG. 16 illustrates a flow chart illustrating a method 1600 for supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The operations of the method 1600 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1600 may be performed by a UE 115 as described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.

[0142] At 1605, the method may include receiving a first power control configuration for a first frequency band and a second power control configuration for a second frequency band, where the first power control configuration is applied to one or more component carriers in the first frequency band and the second power control configuration is applied to one or more component carriers in the second frequency band. The operations of 1605 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed by a frequency band manager 935 as described with reference to FIG. 9.

[0143] At 1610, the method may include transmitting a first uplink control channel communication to the base station via the primary component carrier using a first uplink transmit power based on the power control information. The operations of 1610 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed by a power control manager 930 as described with reference to FIG.

[0144] At 1615, the method may include transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based on the power control information. The operations of 1615 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed by a power control manager 930 as described with reference to FIG.

[0145] FIG. 17 illustrates a flow chart illustrating a method 1700 for supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The operations of method 1700 may be implemented by a UE or components thereof as described herein. For example, the operations of method 1700 may be performed by a UE 115 as described with reference to FIGS. 1-10. In some examples, the UE may execute a set of instructions to control functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the described functions.

[0146] At 1705, the method may include receiving an indication from a base station indicating whether to apply power control commands per component carrier or across multiple component carriers. The operations of 1705 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a closed loop power control component 940 as described with reference to FIG.

[0147] At 1710, the method may include receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a configuration manager 925 as described with reference to FIG. 9. In some cases, the uplink carrier aggregation configuration enables uplink control channel communication on the primary component carrier and the secondary component carrier and provides power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier.

[0148] At 1715, the method may include receiving, from the base station, a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier. The operations of 1715 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a closed loop power control component 940 as described with reference to FIG.

[0149] At 1720, the method may include receiving, from the base station, a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier. The operations of 1720 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1720 may be performed by a closed loop power control component 940 as described with reference to FIG.

[0150] At 1725, the method may include applying one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier. The operations of 1725 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1725 may be performed by a closed loop power control component 940 as described with reference to FIG. 9. In some cases, based on both the primary component carrier and the secondary component carrier being in the same frequency band, both the first power control command and the second power control command are applied to each of the primary component carrier and the secondary component carrier. In some cases, based on the primary component carrier and the secondary component carrier being in different frequency bands, the first power control command is applied to the primary component carrier and the second power control command is applied to the secondary component carrier.

[0151] At 1730, the method may include transmitting a first uplink control channel communication to the base station via the primary component carrier using a first uplink transmit power based on the power control information. The operations of 1730 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1730 may be performed by a power control manager 930 as described with reference to FIG.

[0152] At 1735, the method may include transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based on the power control information. The operations of 1735 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1735 may be performed by a power control manager 930 as described with reference to FIG.

[0153] FIG. 18 illustrates a flow chart illustrating a method 1800 of supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The operations of the method 1800 may be implemented by a base station or components thereof as described herein. For example, the operations of the method 1800 may be performed by a base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0154] At 1805, the method may include transmitting, to a user equipment, an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier. The operations of 1805 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by a configuration manager 1325 as described with reference to FIG. 13.

[0155] At 1810, the method may include receiving a first uplink control channel communication from the UE via a primary component carrier, where a first uplink transmit power of the first uplink control channel communication is based on the power control information. The operations of 1810 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a power control manager 1330 as described with reference to FIG.

[0156] At 1815, the method may include receiving a second uplink control channel communication from the UE via a secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information. The operations of 1815 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1815 may be performed by a power control manager 1330 as described with reference to FIG.

[0157] FIG. 19 illustrates a flow chart illustrating a method 1900 for supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The operations of the method 1900 may be implemented by a base station or components thereof as described herein. For example, the operations of the method 1900 may be performed by a base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0158] At 1905, the method may include transmitting a first power control configuration for a first frequency band and a second power control configuration for a second frequency band, where the first power control configuration is applied to one or more component carriers in the first frequency band and the second power control configuration is applied to one or more component carriers in the second frequency band. The operations of 1905 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1905 may be performed by a frequency band manager 1335 as described with reference to FIG.

[0159] At 1910, the method may include receiving a first uplink control channel communication from the UE via a primary component carrier, where a first uplink transmit power of the first uplink control channel communication is based on the power control information. The operations of 1910 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1910 may be performed by a power control manager 1330 as described with reference to FIG.

[0160] At 1915, the method may include receiving a second uplink control channel communication from the UE via a secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information. The operations of 1915 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1915 may be performed by a power control manager 1330 as described with reference to FIG.

[0161] FIG. 20 illustrates a flow chart illustrating a method 2000 for supporting power control techniques for uplink control channels on multiple component carriers according to aspects of the disclosure. The operations of method 2000 may be implemented by a base station or components thereof as described herein. For example, the operations of method 2000 may be performed by a base station 105 as described with reference to FIGS. 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control functional elements of the base station to perform the described functions. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the described functions.

[0162] At 2005, the method may include transmitting an indication to the UE indicating whether to apply the power control command per component carrier or across multiple component carriers. The operations of 2005 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2005 may be performed by a closed loop power control component 1340 as described with reference to FIG. 13. In some cases, the UE may be configured to apply both a first power control command and a second power control command to each of the primary and secondary component carriers based on both the primary and secondary component carriers being in the same frequency band. In some cases, the UE may be configured to apply a first power control command to the primary component carrier and a second power control command to the secondary component carrier based on the primary and secondary component carriers being in different frequency bands.

[0163] At 2010, the method may include transmitting, to a user equipment, an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier. The operations of 2010 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2010 may be performed by a configuration manager 1325 as described with reference to FIG.

[0164] At 2015, the method may include transmitting to the UE a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier. The operations of 2015 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2015 may be performed by a closed loop power control component 1340 as described with reference to FIG.

[0165] At 2020, the method may include transmitting, to the UE, a second power control command indicating a gradual increase or decrease in transmit power for the secondary component carrier. The operations of 2020 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2020 may be performed by a closed loop power control component 1340 as described with reference to FIG. 13. In some cases, the UE is configured to apply one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier.

[0166] At 2025, the method may include receiving a first uplink control channel communication from the UE via a primary component carrier, where a first uplink transmit power of the first uplink control channel communication is based on the power control information. The operations of 2025 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2025 may be performed by a power control manager 1330 as described with reference to FIG.

[0167] At 2030, the method may include receiving a second uplink control channel communication from the UE via a secondary component carrier, where a second uplink transmit power of the second uplink control channel communication is based on the power control information. The operations of 2030 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 2030 may be performed by a power control manager 1330 as described with reference to FIG.

[0168] The following provides a summary of aspects of the disclosure.

[0169] Aspect 1: A method for wireless communications in a UE, the method including: receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier; transmitting a first uplink control channel communication to a base station via the primary component carrier using a first uplink transmit power based at least in part on the power control information; and transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power based at least in part on the power control information.

[0170] Aspect 2: The method of aspect 1, wherein receiving an uplink carrier aggregation configuration includes receiving a first power control configuration for a primary component carrier and a second power control configuration for a secondary component carrier.

[0171] Aspect 3: The method of aspect 2, wherein the first power control configuration and the second power control configuration include parameters of p0-nominal, p0-Set, pathlossReferenceRSs, and PUCCH-SpatialRelationInfo.

[0172] Aspect 4: The method of any of aspects 2-3, wherein a first power control configuration is received for each component carrier in a first group of component carriers, and a second power control configuration is received for each component carrier in a second group of component carriers.

[0173] Aspect 5: The method of aspect 4, wherein the first power control configuration and the second power control configuration are received in RRC signaling that provides uplink control channel power configuration parameters for the configured component carriers.

[0174] Aspect 6: The method of any of aspects 2-5, wherein the first power control configuration includes a first indication of one or more component carriers in a first frequency band for which the first power control configuration should be used, and the second power control configuration includes a second indication of one or more component carriers in a second frequency band for which the second power control configuration should be used.

[0175] Aspect 7: The method of aspect 1, further comprising: receiving from the base station a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier; receiving from the base station a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier; and applying one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier.

[0176] Aspect 8: The method of aspect 7, wherein the applying step further includes applying both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier.

[0177] Aspect 9: The method of aspect 7, wherein the applying step further includes applying the first power control command to a primary component carrier and the second power control command to a secondary component carrier.

[0178] Aspect 10: The method of any of aspects 7-9, further comprising accumulating incremental increases or decreases in transmit power from the power control commands separately for each configured component carrier or across two or more configured component carriers.

[0179] Aspect 11: The method of any of aspects 7-10, further comprising receiving an indication from a base station indicating whether the power control commands should be applied per component carrier or across multiple component carriers.

[0180] Aspect 12: The method of any of aspects 1 to 11, wherein in an uplink carrier aggregation configuration, the primary component carrier corresponds to a primary cell (PCell) and the secondary component carrier corresponds to a secondary cell (SCell).

[0181] Aspect 13: A method for wireless communication in a base station, the method including: transmitting to a user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communications on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier; receiving a first uplink control channel communication from the UE via the primary component carrier, a first uplink transmit power of the first uplink control channel communication based at least in part on the power control information; and receiving a second uplink control channel communication from the UE via the secondary component carrier, a second uplink transmit power of the second uplink control channel communication based at least in part on the power control information.

[0182] Aspect 14: The method of aspect 13, wherein transmitting the uplink carrier aggregation configuration includes transmitting a first power control configuration for a primary component carrier and a second power control configuration for a secondary component carrier.

[0183] Aspect 15: The method of aspect 14, wherein a first power control configuration is provided for each component carrier in a first group of component carriers and a second power control configuration is provided for each component carrier in a second group of component carriers.

[0184] Example 16: The method of any of Examples 14-15, wherein the first power control configuration and the second power control configuration are provided in RRC signaling that provides uplink control channel power configuration parameters for the configured component carriers.

[0185] Aspect 17: The method of any of aspects 14-16, wherein the first power control configuration includes a first indication of one or more component carriers in the first frequency band for which the first power control configuration should be used, and the second power control configuration includes a second indication of one or more component carriers in the second frequency band for which the second power control configuration should be used.

[0186] Aspect 18: The method of aspect 13, further comprising: transmitting, to the UE, a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier; and transmitting, to the UE, a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier, wherein the UE is configured to apply one or more of the first power control command or the second power control command to one or more of the primary component carrier or the secondary component carrier.

[0187] Aspect 19: The method of aspect 18, further comprising configuring the UE to apply both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier.

[0188] Aspect 20: The method of aspect 18, further comprising configuring the UE to apply the first power control command to the primary component carrier and the second power control command to the secondary component carrier.

[0189] Aspect 21: The method of any of aspects 18-20, further comprising: transmitting an indication to the UE indicating whether the power control command should be applied per component carrier or across multiple component carriers.

[0190] Example 22: The method of any one of Examples 13 to 21, wherein in an uplink carrier aggregation configuration, the primary component carrier corresponds to a primary cell (PCell) and the secondary component carrier corresponds to a secondary cell (SCell).

[0191] Aspect 23: An apparatus for wireless communication in a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform any of the methods of aspects 1-12.

[0192] Example 24: An apparatus for wireless communication in a UE, comprising at least one means for performing the method of any of Examples 1-12.

[0193] Aspect 25: A non-transitory computer-readable medium storing code for wireless communication in a UE, the code including instructions executable by a processor to perform the method of any of aspects 1-12.

[0194] Aspect 26: An apparatus for wireless communication in a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform any of the methods of aspects 13-22.

[0195] An apparatus for wireless communication in a base station, comprising at least one means for performing the method of any of aspects 13-22.

[0196] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication in a base station, the code including instructions executable by a processor to perform the method of any of aspects 13-22.

[0197] It should be noted that the methods described herein represent possible implementations, that the acts and steps may be rearranged or otherwise modified, and that other implementations are possible. Additionally, aspects from two or more of the methods may be combined.

[0198] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described as examples, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used throughout much of the description, the techniques described herein may be applicable to other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0199] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0200] The various example blocks and components described with respect to the disclosure herein may be implemented or performed using a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0201] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. When implemented in software executed by a processor, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that parts of the functions are implemented in various physical locations.

[0202] Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available medium that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, Electrically Erasable Programmable ROM (EEPROM), Flash memory, Compact Disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general purpose or special purpose computer or a general purpose or special purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included within the definition of computer readable media. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, where disks typically reproduce data magnetically and discs reproduce data optically using lasers. Combinations of the above are also included within the scope of computer readable media.

[0203] As used herein, including in the claims, "or" used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such as, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, the phrase "based on" as used herein should not be construed as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, the phrase "based on" as used herein should be construed similarly to the phrase "based at least in part on."

[0204] The term "determine" or "determining" encompasses a wide variety of actions, and thus "determining" can include calculating, computing, processing, deriving, investigating, looking up (such as by looking up in a table, database, or another data structure), ascertaining, etc. "Determining" can also include receiving (such as receiving information), accessing (such as accessing data in a memory), etc. "Determining" can also include resolving, selecting, choosing, establishing, and other such similar actions.

[0205] In the accompanying figures, similar components or features may have the same reference label. Furthermore, various components of the same type may be distinguished by following the reference label with a dash and a second label that distinguishes the similar components. If only a first reference label is used herein, the description is applicable to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference labels.

[0206] The description set forth herein with respect to the accompanying drawings describes exemplary configurations and does not represent every example that may be implemented or fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not mean "preferred" or "advantageous over other examples." The detailed description includes specific details for the purposes of providing an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0207] The description herein is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications of the present disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0208] 100 Wireless communication system 105 Base Station, Serving Base Station 105-a base station 105-b base station 110 Coverage Area, Geographical Coverage Area 110-a Coverage Area 115 UE 115-a UE 115-b UE 120 backhaul links 125 Communication Links 130 Core Network 135 Device-to-device (D2D) communication links, D2D communication links 140 Access Network Entity 145 Access Network Transmission Entity 150 IP Services 200 Wireless Communication System 205 CC 205-a First CC 205-b Second CC 205-c Third CC 210 PUCCH 215 PUCCH 220 PUCCH Group 225 PCC 230 First SCC 235 Second SCC 300 Component Carrier Resources 305 PUCCH Group 310 PCC 315 First SCC 320 Second SCC 330 Uplink Resources 400 Power Control Configuration 405 First Frequency Band 410 First CC 415 Second CC 420 Third CC 425 Second Frequency Band 430 4th CC 435 5th CC 440-a Configuration A 440-b Configuration A 440-c Configuration A 445-a Configuration B 445-b Configuration B 450 Power Control Configuration 455 Configuration A 460 Configuration B 500 Closed Loop Power Control 505 PUCCH Group 510 First CC 515 Second CC 520 PUCCH transmission 525 First Power Control Command 530 Secondary Power Control Command 535 Third Power Control Command 540 4th Power Control Command 545 5th Power Control Command 550 6th Power Control Command 555 Seventh Power Control Command 600 Process Flow 700 Block Diagram 705 Devices 710 Receiver 715 Transmitter 720 Communications Manager 800 Block Diagram 805 Devices 810 Receiver 815 Transmitter 820 Communications Manager 825 Configuration Manager 830 Power Control Manager 900 Block Diagram 920 Communications Manager 925 Configuration Manager 930 Power Control Manager 935 Frequency Band Manager 940 Closed Loop Power Control Components 1000 Systems 1005 Devices 1010 I / O Controller 1015 Transceiver 1020 Communications Manager 1025 Antenna 1030 Memory 1035 Code 1040 Processor 1045 Bus 1020 Communications Manager 1100 Block Diagram 1105 Devices 1110 Receiver 1115 Transmitter 1120 Communications Manager 1200 Block Diagram 1205 Devices 1210 Receiver 1220 Communications Manager 1225 Configuration Manager 1230 Power Control Manager 1300 Block Diagram 1320 Communications Manager 1325 Configuration Manager 1330 Power Control Manager 1335 Frequency Band Manager 1340 Closed Loop Power Control Components 1400 System 1405 Devices 1410 Network Communications Manager 1415 Transceiver 1420 Communications Manager 1425 Antenna 1430 Memory 1435 Code 1440 Processor 1445 Inter-Station Communications Manager 1450 Bus 1500 ways 1600 methods 1700 methods 1800 methods 1900 method 2000 methods

Claims

1. 1. A method for wireless communication in a user equipment (UE), comprising: receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for uplink control channel communication on the primary component carrier and the secondary component carrier; receiving, from a base station, a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier; receiving a second power control command from the base station indicating an incremental increase or decrease in transmit power for the secondary component carrier; applying both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier; transmitting a first uplink control channel communication to the base station over the primary component carrier using a first uplink transmit power based at least in part on the power control information; transmitting a second uplink control channel communication to the base station over the secondary component carrier using a second uplink transmit power based at least in part on the power control information; The method includes:

2. The step of receiving the uplink carrier aggregation configuration further comprises: receiving a first power control configuration for the primary component carrier and a second power control configuration for the secondary component carrier; 2. The method of claim 1, comprising:

3. 3. The method of claim 2, wherein the first power control configuration is received for each component carrier in a first group of component carriers and the second power control configuration is received for each component carrier in a second group of component carriers.

4. 3. The method of claim 2, wherein the first power control configuration and the second power control configuration are received in radio resource control (RRC) signaling that provides uplink control channel power configuration parameters for configured component carriers.

5. 5. The method of claim 2, wherein the first power control configuration comprises a first indication of one or more component carriers in a first frequency band for which the first power control configuration should be used, and the second power control configuration comprises a second indication of one or more component carriers in a second frequency band for which the second power control configuration should be used.

6. accumulating the incremental increases or decreases in transmit power from the power control commands separately for each configured component carrier or across two or more configured component carriers.

6. The method of claim 1, further comprising:

7. receiving an indication from the base station indicating whether power control commands should be applied per component carrier or across multiple component carriers; 7. The method of claim 1, further comprising:

8. 1. A method for wireless communication in a base station, comprising: transmitting, to a user equipment (UE), an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier; transmitting to the UE a first power control command indicating an incremental increase or decrease in transmit power for the primary component carrier; transmitting a second power control command to the UE indicating an incremental increase or decrease in transmit power for the secondary component carrier, the UE being configured to apply both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier; receiving a first uplink control channel communication from the UE via the primary component carrier, a first uplink transmit power of the first uplink control channel communication being based at least in part on the power control information; receiving a second uplink control channel communication from the UE via the secondary component carrier, a second uplink transmit power of the second uplink control channel communication being based at least in part on the power control information; The method includes:

9. the step of transmitting the uplink carrier aggregation configuration further comprising: transmitting a first power control configuration for the primary component carrier and a second power control configuration for the secondary component carrier.

9. The method of claim 8, comprising:

10. 10. The method of claim 9, wherein the first power control configuration is provided for each component carrier in a first group of component carriers and the second power control configuration is provided for each component carrier in a second group of component carriers.

11. 11. The method of claim 9 or 10, wherein the first power control configuration and the second power control configuration are provided in Radio Resource Control (RRC) signaling that provides uplink control channel power configuration parameters for configured component carriers.

12. 12. The method of claim 9, wherein the first power control configuration comprises a first indication of one or more component carriers in a first frequency band for which the first power control configuration should be used, and the second power control configuration comprises a second indication of one or more component carriers in a second frequency band for which the second power control configuration should be used.

13. sending an indication to the UE indicating whether power control commands should be applied per component carrier or across multiple component carriers; 13. The method of any one of claims 8 to 12, further comprising:

14. An apparatus for wireless communication in a user equipment (UE), comprising: A processor; a memory coupled to the processor; instructions stored in said memory; wherein the instructions cause the device to: receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for uplink control channel communication on the primary component carrier and the secondary component carrier; receiving a first power control command from a base station indicating an incremental increase or decrease in transmit power for the primary component carrier; receiving a second power control command from the base station indicating an incremental increase or decrease in transmit power for the secondary component carrier; applying both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier; transmitting a first uplink control channel communication to the base station via the primary component carrier using a first uplink transmit power based at least in part on the power control information; transmitting a second uplink control channel communication to the base station over the secondary component carrier using a second uplink transmit power based at least in part on the power control information; The apparatus is executable by the processor to cause

15. An apparatus for wireless communication in a base station, comprising: A processor; a memory coupled to the processor; instructions stored in said memory; wherein the instructions cause the device to: transmitting, to a user equipment (UE), an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, the uplink carrier aggregation configuration enabling uplink control channel communication on the primary component carrier and the secondary component carrier and providing power control information for the uplink control channel communication on the primary component carrier and the secondary component carrier; transmitting a first power control command to the UE indicating an incremental increase or decrease in transmit power for the primary component carrier; transmitting to the UE a second power control command indicating an incremental increase or decrease in transmit power for the secondary component carrier, the UE being configured to apply both the first power control command and the second power control command to each of the primary component carrier and the secondary component carrier; receiving a first uplink control channel communication from the UE via the primary component carrier, wherein a first uplink transmit power of the first uplink control channel communication is based at least in part on the power control information; receiving a second uplink control channel communication from the UE via the secondary component carrier, wherein a second uplink transmit power of the second uplink control channel communication is based at least in part on the power control information; The apparatus is executable by the processor to cause

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