Power control techniques for uplink control channels on multiple component carriers

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 Mar. 29, 2021, and U.S. Patent Application No. 17 / 559,846, filed Dec. 22, 2021, both entitled "POWER CONTROL TECHNIQUES FOR UPLINK CONTROL CHANNELS ON MULTIPLE COMPONENT CARRIERS," each of which has been assigned to the assignee of this application.

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

Background Art

[0003] Wireless communication systems are widely deployed to provide various types of communication content, including voice, video, packet data, messaging, and broadcast. These systems may support 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) systems, LTE-A systems, 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 sometimes be known as user equipment (UEs).

[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 increase the amount of data that can be transferred between the UE and the base station and reduce communication latency. Techniques for further improving communication using multiple component carriers may help to further increase data rates and reduce communication latency. [Overview of the project] [Means for solving the problem]

[0005] The techniques described relate to improved methods, systems, devices, and apparatus for supporting power control techniques for uplink control channels on multiple component carriers. In various embodiments, the techniques described 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 the uplink power control for the control channel communications may be determined based on a power control configuration provided by the base station. In some cases, the PCC and SCC may use the same set of power control parameters based on the fact that the PCC and SCC are in the same frequency band. In other cases, the PCC and SCC may use different power control parameters based on the fact that the PCC and SCC are in different frequency bands. As an addition or alternative, power control commands for increasing or decreasing transmit power may be accumulated per CC or across multiple CCs, at least in part, based on the power control configuration.

[0006] A method for wireless communication in user equipment (UE) is described. The method may include the steps of: receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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; 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 a base station via the secondary component carrier using a second uplink transmit power based on the power control information.

[0007] The present invention describes an apparatus for wireless communications in a UE. The apparatus may include a processor and memory coupled to the processor. The processor and 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 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; to transmit a first uplink control channel communications to a base station via the primary component carrier using a first uplink transmit power based on the power control information; and to transmit a second uplink control channel communications to a 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, wherein the uplink carrier aggregation configuration enables uplink control channel communications on the primary component carrier and the secondary component carrier and provides power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier; means for transmitting the first uplink control channel communications to a base station via the primary component carrier using a first uplink transmit power based on the power control information; and means for transmitting the second uplink control channel communications to a base station via the secondary component carrier using a second uplink transmit power based on the power control information.

[0009] The present invention describes a non-temporary computer-readable medium for storing code for wireless communications in a UE. The code may include instructions that can be executed 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; to transmit a first uplink control channel communications to a base station via the primary component carrier using a first uplink transmit power based on the power control information; and to transmit a second uplink control channel communications to a 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-temporary computer-readable media described herein, receiving an uplink carrier aggregation configuration may include an operation, feature, means, or instruction for receiving a first power control configuration for primary component carriers and a second power control configuration for secondary component carriers. In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, the first and second power control configurations include parameters such as p0-nominal, p0-Set, pathlossReferenceRSs, and physical uplink control channel (PUCCH)-SpatialRelationInfo.

[0011] In some examples of the methods, apparatus, and non-transient computer-readable media described herein, the 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 the 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-transient computer-readable media described herein, the first and second power control configurations 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-transient computer-readable media described herein, the first power control configuration includes a first instruction for one or more component carriers in a first frequency band on which the first power control configuration should be used, and the second power control configuration includes a second instruction for one or more component carriers in a second frequency band on which the second power control configuration should be used. In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, a first power control configuration and a second power control configuration may be received 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-temporary computer-readable media described herein, in an uplink carrier aggregation configuration, primary component carriers correspond to primary cells (PCells), and secondary component carriers correspond to secondary cells (SCells).

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

[0013] A method for wireless communication at a base station is described. The method may include the steps of: transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to user equipment, wherein 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 a UE via the primary component carrier, wherein the 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 a UE via the secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is based on the power control information.

[0014] The present invention describes an apparatus for wireless communications at a base station. The apparatus may include a processor and memory coupled to the processor. The processor and memory may be configured to transmit to user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein the uplink carrier aggregation configuration enables uplink control channel communications on the primary component carrier and the secondary component carrier and provides power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier; to receive a first uplink control channel communications from a UE via the primary component carrier, wherein the first uplink transmit power of the first uplink control channel communications is based on the power control information; and to receive a second uplink control channel communications from a UE via the secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communications is based on the power control information.

[0015] Another device for wireless communications at a base station is described. The device may include means for transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to user equipment, wherein the uplink carrier aggregation configuration enables uplink control channel communications on the primary component carrier and the secondary component carrier and provides 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 communications from a UE via the primary component carrier, wherein the first uplink transmit power of the first uplink control channel communications is based on the power control information; and means for receiving a second uplink control channel communications from a UE via the secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communications is based on the power control information.

[0016] The present invention describes a non-temporary computer-readable medium for storing code for wireless communications at a base station. The code may include instructions executable by a processor to transmit 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 and secondary component carriers and providing power control information for the uplink control channel communications on the primary and secondary component carriers; receive a first uplink control channel communications from a UE via the primary component carrier, the first uplink transmit power of the first uplink control channel communications being determined based on the power control information; and receive a second uplink control channel communications from a UE via the secondary component carrier, the second uplink transmit power of the second uplink control channel communications being determined based on the power control information.

[0017] In some examples of the methods, apparatus, and non-transient computer-readable media described herein, transmitting an uplink carrier aggregation configuration may include operations, features, means, or instructions for transmitting a first power control configuration for primary component carriers and a second power control configuration for secondary component carriers. In some examples of the methods, apparatus, and non-transient 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-transient computer-readable media described herein, the first and second power control configurations 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-temporary computer-readable media described herein, a first power control configuration includes a first instruction for a first group of component carriers on which the first power control configuration should be used, and a second power control configuration includes a second instruction for a second group of component carriers on which the second power control configuration should be used. In some examples of the methods, apparatus, and non-temporary computer-readable media described herein, the first and second power control configurations 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-temporary computer-readable media described herein, in an uplink carrier aggregation configuration, primary component carriers correspond to primary cells (PCells), and secondary component carriers correspond to secondary cells (SCells).

[0019] Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for transmitting to a UE a first power control command indicating a gradual increase or decrease in transmit power for a primary component carrier, and transmitting to a UE a second power control command indicating a gradual increase or decrease in transmit power for a secondary component carrier, wherein the UE is configured to apply one or more of the first or second power control commands to one or more of the primary or secondary component carriers. Some examples of methods, apparatus, and non-temporary 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 the primary and secondary component carriers, respectively. Some examples of methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions 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 methods, apparatus, and non-temporary computer-readable media described herein may further include operations, features, means, or instructions for sending instructions to the UE indicating whether to apply a power control command per component carrier or across multiple component carriers. [Brief explanation of the drawing]

[0020] [Figure 1] This figure shows an example of a wireless communication system that supports a power control technique for uplink control channels on multiple component carriers, according to aspects of the present disclosure. [Figure 2] This figure shows an example of a part 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. [Figure 3]A diagram showing an example of component carrier resources supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 4A] A diagram showing an example of a power control configuration supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 4B] A diagram showing an example of a power control configuration supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 5] A diagram showing an example of closed-loop power control supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 6] A diagram showing an example of a process flow supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 7] A block diagram of a device supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 8] A block diagram of a device supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 9] A block diagram of a communication manager supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 10] A diagram of a system including a device supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 11] A block diagram of a device supporting a power control technique for an uplink control channel on a plurality of component carriers according to an aspect of the present disclosure. [Figure 12]This is a block diagram of a device supporting a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 13] This is a block diagram of a communications manager supporting a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 14] This is a diagram of a system including a device that supports a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. [Figure 15] This flowchart shows a method for supporting a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. [Figure 16] This flowchart shows a method for supporting a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. [Figure 17] This flowchart shows a method for supporting a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. [Figure 18] This flowchart shows a method for supporting a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. [Figure 19] This flowchart shows a method for supporting a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. [Figure 20] This flowchart shows a method for supporting a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. [Modes for carrying out the invention]

[0021] Some wireless communication systems may include user equipment and base stations, communication devices such as e-node B (eNB), next-generation node B, or giganode B (both sometimes called gNB), which 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, sometimes called New Radio (NR) systems. Communication devices may, in some examples, support one or more of the exemplary radio access technologies described above. User equipment (UE) may communicate with base stations in a wireless communication system. Base stations may transmit downlink communications to UEs, and UEs may transmit uplink communications to base stations. Downlink and uplink transmissions may include data and control transmissions. For example, a UE may transmit uplink control transmissions in a physical uplink control channel (PUCCH) transmission. A UE may transmit PUCCH transmissions to a base station, such as uplink control information (UCI) on a PUCCH, using a configured PUCCH scheme (e.g., by PUCCH type or format). Furthermore, in some cases, communication between the base station and the UE may use carrier aggregation (CA) techniques, in which multiple component carriers (CCs) may be configured to carry downlink communication, uplink communication, or both.

[0022] In the case of PUCCH transmission, the UE may determine the power level of the PUCCH transmission based on the uplink power control configuration. In some deployments, PUCCH transmission may be provided only on the primary component carrier (PCC), which in some cases may be called a primary cell (PCell). In such cases, the uplink power control configuration for PUCCH transmission is provided for the PCC. However, in some cases, it may be beneficial to transmit PUCCH over one or more secondary component carriers (SCC or SCell), which may allow PUCCH to be transmitted with lower latency because resources for PUCCH are available earlier on the SCC compared to the PCC. Furthermore, uplink-controlled channel transmission may use different transmit power than that used for uplink-shared channel communication (e.g., physical uplink-shared channel (PUSCH) transmission). In various embodiments as described herein, power control techniques are provided for uplink control channel transmissions on PCCs and one or more SCCs, and a UE may use such techniques to determine the 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 CAs, a common power control configuration may be provided for multiple intraband CCs. In some cases, the 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 that indicates the CC to which it applies, for example, by an information field added to the configuration information that enumerates the CCs. In the case of interband CAs, different power control configurations may be provided for CCs in different bands. In some cases, in closed-loop power control, the power control command may be provided as absolute power control for each CC. In some cases, in absolute power control, the power control command applies only to the CC if it is determined that a PUCCH is transmitted. In other cases, closed-loop power control may be provided as storage adjustment for the transmit power. When storage adjustment is used for power control, the UE may store power control commands separately for each CC or across CCs. In some cases, power control commands may be stored separately for CCs in different bands, or they may be stored across CCs in the case of intraband CCs. In some cases, the base station may be configured to perform per-CC or across-CC power control command storage.

[0024] The aspects of this disclosure will first be described in the context of wireless communication systems. The aspects of this disclosure will be further illustrated and described with reference to CC groups and resources, process flows, equipment diagrams, system diagrams, and flowcharts relating to power control techniques for uplink control channels on multiple component carriers.

[0025] Figure 1 shows an example of a wireless communication system 100 that supports power control techniques for uplink control channels on multiple component carriers according to aspects of the present 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 extended broadband communication, ultra-high reliability (e.g., mission-critical) communication, low-latency communication, communication with low-cost, low-complexity devices, or any combination thereof.

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

[0027] The UE115 may be distributed across the entire coverage area 110 of the wireless communication system 100, and each UE115 may be fixed, mobile, or both at different times. The UE115 may be devices in different forms or with different capabilities. Several exemplary UE115 are shown in Figure 1. The UE115 described herein may be capable of communicating with various types of devices, such as other UE115, 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 Figure 1.

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

[0029] One or more of the base stations 105 described herein may include, or be referred to as, a base transceiver station, a radio base station, an access point, a radio transceiver, a node B, an e-node B (eNB), a next-generation node B or giganode B (either of which may be called a gNB), a home node B, a home e-node B, or other preferred terms.

[0030] UE115 may include, or may be referred to as, a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other preferred term; “device” may also be referred to as a unit, station, terminal, or client, in the examples. UE115 may also include, or may be referred to as, personal electronic devices such as cellular phones, personal digital assistants (PDAs), tablet computers, laptop computers, or personal computers. In some examples, UE115 may include, or may be referred to as, a wireless local loop (WLL) station, an Internet of Things (IoT) device, any Internet of Things (IoE) device, or a machine-type communications (MTC) device, in the examples, or may be implemented in various items such as appliances, vehicles, meters, etc.

[0031] The UE115 described herein may be capable of communicating with other UE115s that may function as relays, as shown in Figure 1, and with various types of devices, including, among other examples, a macro eNB or gNB, a small cell eNB or gNB, or a base station 105 and network equipment including a relay base station.

[0032] UE115 and base station 105 may wirelessly communicate with each other via one or more communication links 125 over one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication links 125. For example, a carrier used for communication link 125 may include a portion of the radio frequency spectrum band (e.g., a bandwidth part (BWP)) operating 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 collected signaling (e.g., synchronization signals, system information), control signaling to coordinate operations with the carrier, user data, or other signaling. The wireless communication system 100 may support communication with UE115 using carrier aggregation or multi-carrier operation. UE115 may consist of multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used with both frequency-division duplex (FDD) component carriers and time-division duplex (TDD) component carriers.

[0033] In some examples (for instance, in carrier aggregation configurations), a carrier may also have acquisition or control signaling to coordinate its operation with other carriers. A carrier may be associated with a frequency channel (e.g., an Advanced Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be positioned according to a channel raster for discovery by the UE115. A carrier may operate in a standalone mode where initial acquisition and connection are performed by the UE115 via the carrier, or in a non-standalone mode where connection is anchored using different carriers (e.g., the same or different radio access technologies).

[0034] A communication link 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. The carrier may carry downlink communications or uplink communications (for example, in FDD mode), or may be configured to carry downlink communications and uplink communications (for example, in TDD mode).

[0035] A carrier may be associated with a specific 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 the carrier of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication on a specific 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 over carriers associated with multiple carrier bandwidths. In some examples, each UE 115 being served may be configured to operate on a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0036] The signal waveform transmitted on a carrier can consist of multiple subcarriers (for example, using multicarrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM). In systems 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 subcarrier interval 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). Therefore, the more resource elements the UE115 receives, and the higher the order of the modulation scheme, the higher the data rate of the UE115 can be. Wireless communication resources may refer to a combination of radio frequency spectral resources, temporal 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 UE115.

[0037] One or more numerologies may be supported for a carrier, 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, UE115 may consist of multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for UE115 may be limited to one or more active BWPs.

[0038] The time interval for base station 105 or UE115 is, for example, T s = 1 / (Δf max ·N f It can refer to a sampling period of ) seconds, and may be expressed in multiples of the basic time unit, however, Δf max This can represent the maximum supported subcarrier interval, N fThis may represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of communication resources 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 contain multiple sequentially numbered subframes or slots, each subframe or slot having the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into several slots. Alternatively, each frame may contain a variable number of slots, the number of slots may depend on the subcarrier interval. Each slot may contain several symbol periods (e.g., depending on the length of the cyclic prefix prepared for each symbol period). In some wireless communication systems 100, a slot may be further divided into several minislots, each containing one or more symbols. Except for the cyclic prefix, each symbol period may contain one or more (e.g., N) symbols. f The sampling period may include (1) units. The duration of the symbol period may depend on the subcarrier interval 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 communication system 100 and may be called a transmit time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods within the TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0041] Physical channels can be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier using, for example, one or more of the following techniques: time-division multiplexing (TDM), frequency-division multiplexing (FDM), or hybrid TDM-FDM. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by the number of symbol periods and may extend to the carrier's system bandwidth or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UE115s. For example, one or more UE115s may monitor or search for control regions for control information according to one or more search space sets, each search space set may include one or more control channel candidates at one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UE115s, and a UE-specific search space set for sending control information to a specific UE115.

[0042] Each base station 105 may provide communication coverage through one or more cells, such as macrocells, small cells, hotspots, or other types of cells, or any combination thereof. The term “cell” may refer to a logical communication entity used for communication with base station 105 (for example, on a carrier) and may be associated with an identifier for distinguishing neighboring cells (for example, a physical cell identifier (PCID), a virtual cell identifier (VCID), or other). In some examples, a cell may also refer to a geographical coverage area 110 or a portion of geographical coverage area 110 (for example, a sector) on which the logical communication entity operates. Such cells may range from smaller areas (for example, structures, subsets of structures) to larger areas, depending on various factors such as the capabilities of base station 105. For example, a cell may be, in the example, a building, a subset of a building, or external space between or overlapping with geographical coverage area 110.

[0043] Macrocells can typically cover relatively large geographical areas (e.g., a radius of several kilometers) and can enable unrestricted access by UE115s subscribed to the services of a network provider that supports macrocells. Small cells may be associated with lower-power base stations 105 compared to macrocells, and small cells may operate in the same or different (e.g., licensed, unlicensed) frequency bands as macrocells. Small cells may provide unrestricted access to UE115s subscribed to the services of a network provider, or they may provide restricted access to UE115s associated with small cells (e.g., UE115s in a limited subscriber group (CSG), UE115s associated with users in a home or office). 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 cases, 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 can provide access to different types of devices.

[0045] In some examples, base station 105 may be mobile and therefore capable of providing communication coverage to a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but 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, for example, heterogeneous networks in which different types of base stations 105 provide coverage to various geographic coverage areas 110 using the same or different radio access technologies.

[0046] Some UE115s, such as MTC devices or IoT devices, may be low-cost or low-complexity devices that can provide automated communication between machines (for example, via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that enables devices to communicate with each other or with base stations 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 it to a human interacting with the application program. Some UE115s 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 detection, physical access control, and transaction-based business billing.

[0047] The wireless communication system 100 may be configured to support ultra-high reliability communication, low latency communication, or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-high reliability low latency communication (URLLC) or mission-critical communication. The UE 115 may be designed to support ultra-high reliability, low latency, or critical functions (e.g., mission-critical functions). Ultra-high reliability communication may include private or group communication 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 mission-critical services may be used for public safety or general commercial purposes. The terms ultra-high reliability, low latency, mission-critical, and ultra-high reliability low latency may be used interchangeably herein.

[0048] In some examples, UE115 may also be able to communicate directly with other UE115 over a device-to-device (D2D) communication link 135 (for example, using a peer-to-peer (P2P) protocol or a D2D protocol). One or more UE115s utilizing D2D communication may be within the geographical coverage area 110 of base station 105. Other UE115s in such a group may be outside the geographical coverage area 110 of base station 105, or in some cases may not be able to receive transmissions from base station 105. In some examples, a group of UE115s communicating via D2D communication may utilize a one-to-many (1:M) system where each UE115 transmits to any other UE115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication takes place between UE115s without the involvement of base station 105.

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

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

[0051] Some of the network devices, such as the base station 105, may include sub-components 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 called radio heads, smart radio heads, or transmit / receive points (TRPs). Each access network transmitting entity 145 may include one or more antenna panels. In some configurations, the 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., base station 105).

[0052] The wireless communication system 100 may typically operate using one or more frequency bands in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band, as wavelengths range from approximately 1 decimeter to 1 meter. While UHF waves may be blocked or redirected by building and environmental characteristics, these waves can penetrate structures well enough to serve a UE 115 where a macrocell is located indoors. Transmitting UHF waves can be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmitting using lower frequencies and longer waves in the shortwave (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0053] The wireless communication system 100 may also operate in the super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz, also known as the centimeter band, or in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz), also known as the millimeter band. In some examples, the wireless communication system 100 may support millimeter-wave (mmW) communication between the UE 115 and the base station 105, and the EHF antennas of each device may be smaller and more densely spaced than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to greater atmospheric attenuation than SHF or UHF transmissions and may have shorter distances. The techniques disclosed herein may be employed across transmissions using one or more different frequency domains, and the specified use of bands across these frequency domains 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 unlicensed bands such as the 5 GHz Industrial Scientific Medical (ISM) band. When operating in unlicensed radio frequency spectrum bands, devices such as base station 105 and UE 115 may employ carrier detection for collision detection and avoidance. In some examples, operation in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrums may include, among other examples, downlink transmission, uplink transmission, P2P transmission, or D2D transmission.

[0055] Base station 105 or UE115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE115 may be located in one or more antenna arrays or antenna panels that can support MIMO operation or transmit beamforming or receive beamforming. For example, one or more base station antennas or antenna arrays may be collated in an antenna assembly such as an antenna tower. In some examples, the antennas or antenna arrays associated with base station 105 may be located in diverse geographical locations. Base station 105 may have an antenna array with several rows and columns of antenna ports that base station 105 can use to support beamforming of communication with UE115. Similarly, UE115 may have one or more antenna arrays that can support various MIMO or beamforming operations. As an addition or alternative, antenna panels may support radio frequency beamforming for signals transmitted through antenna ports.

[0056] A base station 105 or UE115 may use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals through different spatial layers. Such techniques are sometimes called spatial multiplexing. Multiple signals may be transmitted by a transmitting device through different antennas or different combinations of antennas. Similarly, multiple signals may be received by a receiving device through different antennas or different combinations of antennas. Each of the multiple signals may be called 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). Different spatial layers may be associated with different antenna ports used for channel measurement 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 called spatial filtering, directional transmission, or directional reception, is a signal processing technique that can be used in a transmitting or receiving device (e.g., base station 105, UE115) to shape or steer an antenna beam (e.g., transmit beam, receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals communicated through the antenna elements of an antenna array such that several signals propagating in a particular orientation relative to the antenna array undergo constructive interference and other signals undergo destructive interference. Coordination of signals communicated through antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried through the antenna elements associated with the device. Coordination associated with each antenna element 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 operating 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 for communication over logical channels. The Medium Access Control (MAC) layer may perform priority processing and multiplexing logical channels to transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to improve link efficiency by supporting retransmission at the MAC layer. In the control plane, the Radio Resource Control (RRC) protocol layer may establish, configure, and maintain RRC connections between the UE 115 and the base station 105 or core network 130, supporting radio bearers for user plane data. At the physical layer, transport channels may be mapped to physical channels.

[0059] UE115 and base station 105 may support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Retransmission Request (ARQ) feedback is one technique to increase the likelihood of data being correctly received on communication link 125. HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Retransmission Request (ARQ)). HARQ may improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise conditions). In some examples, devices may support same-slot HARQ feedback, where the device may provide HARQ feedback in a slot for data received in a previous symbol within a particular slot. In other cases, the device may provide HARQ feedback in subsequent slots or according to some other time interval.

[0060] In some cases, uplink carrier aggregation may be used for communication between one or more UEs 115 and associated serving base stations 105. Furthermore, in some cases, uplink control channel communication may be transmitted over a PCC and one or more SCCs, and uplink power control for control channel communication may be determined in 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 fact that the PCC and SCC are in the same frequency band. In other cases, the PCC and SCC may use different power control parameters based on the fact that the PCC and SCC are in different frequency bands. Additionally or alternatively, power control commands for increasing or decreasing transmit power may be accumulated per CC or across multiple CCs, at least in part, based on the power control configuration.

[0061] Figure 2 shows an example of a wireless communication system 200 that supports a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. In some examples, the wireless communication system 200 may implement an aspect of the wireless communication system 100. UE115-a may be an example of UE115 as described with respect to Figure 1, and base station 105-a may be an example of base station 105 as described with respect to Figure 1. Base station 105-a may serve one or more UE115, including UE115-a, within a coverage area 110-a. In this example, base station 105-a and UE115-a may exchange uplink and downlink communications using a plurality of CC205s, including a first CC205-a, a second CC205-b, and a third CC205-c.

[0062] In some cases, UE115-a may consist of a PUCCH group 220 including a PCC225, a first SCC230, or a second SCC235. In various existing systems, PUCCH210 may be transmitted only over the PCC225, but in some cases, PUCCH210 carrier switching may occur, where one or more of the first SCC230 or the second SCC235 may be used to transmit PUCCH210, in order to provide an additional opportunity for UCI transmission. In some cases, power control may be configured for PUCCH210 transmission according to various techniques such as those described herein. In some cases, the power control configuration may be provided to UE115-a in PDCCH215. In some cases, the power control configuration may be provided in radio resource control (RRC) signaling, in one or more MAC control elements (CEs), in downlink control information (DCI), or in any combination thereof. Such techniques can, for example, achieve reduced latency in the transmission of HARQ acknowledgment feedback for one or more downlink transmissions, which can improve the efficiency of wireless communication.

[0063] Figure 3 shows an example of a component carrier resource 300 that supports a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. In some examples, the component carrier resource 300 may implement an aspect of a wireless communication system 100 or 200. In this example, a base station (e.g., base station 105 in Figure 1 or Figure 2) may constitute multiple CCs in a UE (e.g., UE 115 in Figure 1 or Figure 2), which may include a configuration of PUCCH group 305.

[0064] As shown in Figure 3, the PUCCH group 305 may include a PCC310, a first SCC315, and a second SCC320. In this example, the PCC310 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), the special slot (S) including several downlink and uplink resources, and a transmit gap that can be used in the UE to adjust the RF component from a downlink configuration to an uplink configuration. In the example in Figure 3, downlink resource 325 and uplink resource 330 for the CC are shown. In this example, for the PCC310 and the first SCC315, the slot configuration may be DDSUDDSU, with a 2-slot offset between the PCC310 and the first SCC315. Furthermore, the second SCC320 may be a frequency division duplex (FDD) carrier, with only the uplink portion shown in Figure 3. Such a PUCCH group 305 may allow the UCI to be transmitted using one or more of the PCC310, the first SCC315, or the second SCC320. By providing the ability to transmit the UCI on the first SCC315 or the second SCC320, latency for several types of communications may be reduced. For example, if the UE has HARQ feedback to be sent to the base station, additional uplink resources may be provided compared to the case where the UCI can be transmitted using only the PCC310, which may reduce the latency associated with the HARQ feedback. Reduced HARQ feedback latency can enable any retransmission to be initiated more quickly, which may help provide higher throughput and reliability. Furthermore, reduced HARQ feedback latency can enable the HARQ process ID to be released more quickly for subsequent transmissions, which may also help enable additional transmissions to be initiated and reduce processing resource usage.

[0065] In some cases, a PUCCH transmission may be transmitted according to a power control configuration that may provide different power controls for PUCCH and PUSCH communications. In some cases, the power control for a PUCCH transmission may be based on several power control parameters, including, for example, a p0-nominal which may provide a cell-specific Po (e.g., nominal starting power for uplink transmissions), and a P_o_UE_PUCCH which may provide a UE-specific value selected from a set p0-Set. The p0-Set parameter may indicate a set for CC, and the cardinality of the set is based on the maximum number of PUCCH Pos per set (e.g., maxNrofPUCCH-P0-PerSet). For each entry in P0-Set, the parameters may include {p0-PUCCH-Id, p0-PUCCH-Value}. The specific value of p0-PUCCH-Value that the UE should apply for a PUCCH transmission may be based on a specific p0-PUCCH-Id in configured spatial relation 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 the RRC, and the UE may be instructed by the MAC-CE which PUCCH-SpatialRelationInfo to use. The power control configuration may also provide reference signal identification information for a reference signal that can 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, where power control commands are signaled in DCI. Power control commands may be used to dynamically adjust the PUCCH transmit power over Po. Two types of dynamic power control commands may be used, including Type 1 commands that provide accumulated dynamic power control commands (e.g., 2-bit power control commands that indicate whether the UE should increment or decrement the transmit power by a configured step amount) and Type 2 commands that provide absolute power control (e.g., transmit power indication). The UE may consist of two dynamic power control loops for PUCCH transmission (e.g., one loop for URLLC and another for eMBB). However, for PUCCH, the UE may use only one loop, and which loop is used is indicated by closedLoopIndex in the RRC parameter PUCCH-SpatialRelationInfo. The UE's final transmit power may be the sum of the nominal value, path loss, and dynamic power control information, resulting in transmit power = Po + path loss + dynamic power control loop output. According to the various techniques described herein, such power control techniques may be used with the PCC310, the first SCC315, the second SCC320, or any combination thereof, examples of which will be described with reference to Figures 4A, 4B, and 5.

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

[0068] In the examples in Figures 4A and 4B, different CCs may be configured in different frequency bands (e.g., frequency range 1 (FR1) band n1-n98, FR2 band n257-n261, etc.). As shown in Figure 4A, the first CC410, the second CC415, and the third CC420 may be configured in the first frequency band 405, and the fourth CC430 and the fifth CC435 may be configured in the second frequency band 425. In this example, the intraband CCs may use the same configuration that provides a common p0-Set and a common PUCCH-SpatialRelationInfo, while CCs in different bands (e.g., in an interband CA) may use different p0-Sets for each band (or each CC) and different PUCCH-SpatialRelationInfo for each band (or each CC). In the examples in Figures 4A and 4B, the first to 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 be configured with power control configurations of configuration A and configuration B.

[0069] In the example in Figure 4A, the base station may configure each CC separately such that the first CC410 is provided with configuration A440-a, the second CC415 is provided with configuration A440-b, the third CC420 is provided with configuration A440-c, the fourth CC430 is provided with configuration B445-a, and the fifth CC435 is provided with configuration B445-b. Such configurations, in which a PUCCH-SpatialRelationInfo and p0-Set can be configured for each CC, may be provided by RRC signaling. In this example, for CCs in the same band (the same band in an 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 in Figure 4B, the base station may provide a single configuration for a specific frequency band, and thus provide configuration A455 for the first to third CCs 410-420 and configuration B460 for the fourth to fifth CCs 430-435. In such a case, the base station may provide RRC configurations for each band (i.e., intraband CAs are reduced to a single band). In each configuration for a band, a field may be provided to indicate which CCs the configuration applies to (e.g., in spatial relation information or any other power control configuration information). For example, the base station may provide RRC signaling that includes the PUCCH-CC-List field in "PUCCH-Config", "PUCCH-SpatialRelationInfo", "PUCCH-powerControl", or "p0-Set". Based on the power control configuration, the UE may set the transmit power for PUCCH transmissions on each of the CCs configured for PUCCH transmissions.

[0071] Figure 5 shows an example of a closed-loop power control 500 that supports a power control technique for uplink control channels on multiple component carriers according to an aspect of the present disclosure. In some examples, the closed-loop power control 500 may implement an aspect of a wireless communication system 100 or 200. In this example, a base station (e.g., base station 105 in Figure 1 or Figure 2) may constitute multiple CCs in an UE (e.g., UE 115 in Figure 1 or Figure 2).

[0072] In the example shown in Figure 5, the base station may constitute a PUCCH group 505 having a first CC510 and a second CC515. Furthermore, in this case, power control commands such as Type 1 commands that provide stored dynamic power control commands may be used for the PUCCH transmit 520. In this example, a first power control command 525 may be received for the first CC510, a second power control command 530 may be received for the second CC515, a third power control command 535 may be received for the first CC510, a fourth power control command 540 may be received for the second CC515, a fifth power control command 545 and a sixth power control command 550 may be received for the first CC510, and a seventh power control command 555 may be received for the second CC515.

[0073] In some cases, the UE may store power control commands for PUCCH across the first CC510 and the second CC515. In such cases, power control commands 525-555 may be stored 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 storage technique may be used when both the first CC510 and the second CC515 are intraband CCs (for example, the channel conditions for each CC may be very similar). In other cases, the UE may store power control commands separately for each of the first CC510 and the second CC515. 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 transmit 520 on the first CC510. 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 transmit 520 on the second CC 515. In some cases, such power control storage techniques may be used when the first CC 510 and the second CC 515 are interband CCs (for example, channel conditions may differ for each CC). In some cases, cross-CC power control command storage may be applied to any CCs in the same band, and separate storage is performed for different bands. In some cases, in intraband CAs, the base station may configure the UE to perform cross-CC storage or to perform storage separately for each CC.

[0074] Figure 6 shows an example of a process flow 600 supporting a power control technique for uplink control channels on multiple component carriers according to aspects of this disclosure. In some examples, process flow 600 may implement aspects of wireless communication systems 100 and 200. Process flow 600 includes UE115-b, which may be an example of UE115 as described with respect to Figures 1 and 2. Process flow 600 also includes base station 105-b, which may be an example of base station 105 as described with respect to Figures 1 and 2. UE115-b and base station 105-b may implement uplink control channel power control procedures as described herein.

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

[0076] In 605, base stations 105-b and UE 115-b may establish connectivity via multiple CCs using carrier aggregation. Such connectivity may be established according to connectivity establishment techniques for wireless communication networks, such as through random access and connectivity establishment procedures.

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

[0078] In 620, UE115-b may determine uplink control information to be transmitted to base station 105-b. Such uplink control information may include, for example, HARQ feedback for one or more downlink transmissions previously transmitted by base station 105-b or other transmitters.

[0079] In 625, UE115-b may determine the CC and uplink resources for uplink control information transmission. In some cases, UE115-b may determine that the SCC should be used for uplink control information transmission. In 630, UE115-b may determine the uplink transmit power for uplink control information transmission. UE115-b may determine the uplink transmit power according to various techniques, such as those described herein, based on the power control configuration provided to the SCC for determining the uplink transmit power for PUCCH transmission. In 635, UE115-b may use the determined transmit power to transmit an uplink control channel transmission (e.g., a PUCCH transmission) containing uplink control information.

[0080] Optionally, in 640, the base station 105-b and UE115-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 UE115-b. In 645, the base station 105-b may transmit downlink control information to UE115-b, including adjustments to the transmit power (e.g., power control commands). In 650, UE115-b may update the uplink power control loop based on adjustments received from base station 105-b. In some cases, UE115-b may accumulate power control commands across CC in the case of intraband CC, and interband power control commands separately for each different frequency band.

[0081] Figure 7 shows a block diagram 700 of a device 705 supporting a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. Device 705 may be an example of an aspect of UE115 as described herein. Device 705 may include a receiver 710, a transmitter 715, and a communications manager 720. Device 705 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

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

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

[0084] The communication manager 720, receiver 710, transmitter 715, or various combinations thereof or various 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 communication manager 720, receiver 710, transmitter 715, or various combinations thereof 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 (for example, in communications management circuits). 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, which are configured as means for performing the functions described herein or otherwise supporting such means. In some examples, a processor and memory coupled to the processor may be configured to perform one or more of the functions described herein (for example, by the processor executing instructions stored in memory).

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

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

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

[0089] By including or configuring the communications manager 720 in accordance with examples such as those described herein, the device 705 (for example, a processor controlling the receiver 710, transmitter 715, communications manager 720, or a combination thereof, or optionally coupled thereto) can support techniques for power control of uplink control channel communications of one or more SCCs, which enables more efficient use of communications resources and lower latency transmission of uplink control information.

[0090] Figure 8 shows a block diagram 800 of a device 805 supporting a power control technique for uplink control channels on multiple component carriers, according to an aspect of this disclosure. Device 805 may be an example of an aspect of device 705 or UE115 as described herein. Device 805 may include a receiver 810, a transmitter 815, and a communications manager 820. Device 805 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

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

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

[0093] Device 805, or its various components, 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 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 its various components, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in other ways in cooperation 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 with the receiver 810, the transmitter 815, or both to receive information, transmit information, or perform various other operations as described herein.

[0094] Communication manager 820 may support wireless communications in the UE in accordance with examples such as those disclosed herein. Configuration manager 825 is a means for receiving uplink carrier aggregation configurations for primary and secondary component carriers, wherein the uplink carrier aggregation configurations enable uplink control channel communications on the primary and secondary component carriers and provide power control information for the uplink control channel communications on the primary and secondary component carriers, or may otherwise support such means. Power control manager 830 is a means for transmitting first uplink control channel communications to a base station via the primary component carrier using first uplink transmit power based on power control information, or may otherwise support such means. Power control manager 830 is a means for transmitting second uplink control channel communications to a base station via the secondary component carrier using second uplink transmit power based on power control information, or may otherwise support such means.

[0095] Figure 9 shows a block diagram 900 of a communications manager 920 supporting a power control technique for uplink control channels on multiple component carriers, according to an aspect of this disclosure. The communications manager 920 may be an example of an aspect of communications manager 720, communications manager 820, or both, as described herein. The communications manager 920, or various components thereof, may be an example of means for performing various aspects of the power control technique for uplink control channels on multiple component carriers, as described herein. For example, the 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 each other directly or indirectly (for example, via one or more buses).

[0096] The communications manager 920 may support wireless communications in the UE in accordance with examples such as those disclosed herein. The configuration manager 925 is a means for receiving uplink carrier aggregation configurations for primary and secondary component carriers, wherein the uplink carrier aggregation configurations enable uplink control channel communications on the primary and secondary component carriers and provide power control information for the uplink control channel communications on the primary and secondary component carriers, or may otherwise support such means. The power control manager 930 is a means for transmitting first uplink control channel communications to a base station via the primary component carrier using first uplink transmit power based on power control information, or may otherwise support such means. In some examples, the power control manager 930 is a means for transmitting second uplink control channel communications to a base station via the secondary component carrier using second uplink transmit power based on power control information, or may otherwise support such means.

[0097] In some examples, to support receiving uplink carrier aggregation configurations, the frequency band manager 935 may be configured, or otherwise support, means for receiving a first power control configuration for primary component carriers and a second power control configuration for secondary component carriers. In some cases, the first power control configuration is applied to one or more component carriers in a first frequency band, and the second power control configuration is applied to one or more component carriers in a second frequency band. In some examples, the first and second power control configurations include parameters 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, a first power control configuration and a 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 designation of one or more component carriers in a first frequency band on which the first power control configuration should be used, and the second power control configuration includes a second designation of one or more component carriers in a second frequency band on which the second power control configuration should be used. 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 and a list of corresponding component carriers for each power control configuration.

[0099] In some examples, the closed-loop power control component 940 is configured as a means for receiving, or otherwise supporting, a first power control command from a base station indicating a gradual increase or decrease in transmit power for a primary component carrier. In some examples, the closed-loop power control component 940 is configured as a means for receiving, or otherwise supporting, a second power control command from a base station indicating a gradual increase or decrease in transmit power for a secondary component carrier. In some examples, the closed-loop power control component 940 is configured as a means for applying, or otherwise supporting, one or more of the first or second power control commands to, one or more of the primary or secondary component carriers.

[0100] In some examples, to support application, the frequency band manager 935 may be configured as 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 (for example, based on the fact that both the primary and secondary component carriers are in the same frequency band), or may otherwise support such a means. In some examples, to support application, the frequency band manager 935 may be configured as 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 (for example, based on the fact that the primary and secondary component carriers are in different frequency bands), or may otherwise support such a means. In some examples, the closed-loop power control component 940 is a means for receiving instructions from a base station indicating whether to apply a power control command per component carrier or across multiple component carriers, and is configured as a means for applying one or more of the first or second power control commands to each component carrier based on the instructions, or may otherwise support such a means.

[0101] Figure 10 shows a diagram of system 1000 including a device 1005 that supports a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. Device 1005 may be an example of, or include, a component of, device 705, device 805, or UE 115 as described herein. Device 1005 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 1005 may include components for bidirectional 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, a code 1035, and a processor 1040. These components may communicate electronically or, in some cases, be coupled via one or more buses (e.g., bus 1045) (e.g., operably, communicatively, functionally, electronically, electrically).

[0102] The I / O controller 1010 may manage input and output signals for device 1005. The I / O controller 1010 may also manage peripheral devices not integrated into 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, touchscreen, or similar device. In some cases, the I / O controller 1010 may be implemented as part of a processor, such as processor 1040. In some cases, a user may interact with device 1005 via the I / O controller 1010 or through hardware components controlled by the I / O controller 1010.

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

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

[0105] The processor 1040 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, 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 memory (e.g., memory 1030) to cause 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, device 1005 or components of device 1005 may include the processor 1040 and memory 1030 coupled to the processor 1040, and the processor 1040 and memory 1030 may be configured to perform various functions described herein.

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

[0107] By including or configuring the communication manager 1020 in accordance with the examples described herein, the device 1005 can support techniques for power control of uplink control channel communications of one or more SCCs, which can result in more efficient use of communication resources, lower latency transmission of uplink control information, and improved communication reliability.

[0108] In some examples, the communications manager 1020 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with the transceiver 1015, 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, memory 1030, code 1035, or any combination thereof. For example, code 1035 may include instructions executable by the processor 1040 to cause 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 memory 1030 may be otherwise configured to perform or support such operations.

[0109] Figure 11 shows a block diagram 1100 of a device 1105 that supports a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. Device 1105 may be an example of an embodiment of a base station 105 as described herein. Device 1105 may include a receiver 1110, a transmitter 1115, and a communications manager 1120. Device 1105 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

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

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

[0112] The communication manager 1120, receiver 1110, transmitter 1115, or various combinations thereof or various 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 communication manager 1120, receiver 1110, transmitter 1115, or various combinations thereof 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 (for example, in communications management circuits). The hardware may include a processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, which are configured as means for performing the functions described herein or which otherwise support such means. In some examples, a processor and memory coupled to the processor may be configured to perform one or more of the functions described herein (for example, by the processor executing instructions stored in memory).

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

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

[0116] The communication manager 1120 may support wireless communication at a base station in accordance with examples such as those disclosed herein. For example, the communication manager 1120 may provide means for transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to user equipment, wherein the uplink carrier aggregation configuration is configured, or otherwise supports means, for 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 communication manager 1120 may also provide means for receiving a first uplink control channel communication from a UE via a primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is configured, or otherwise supports means, based on power control information. The communication manager 1120 may also provide means for receiving a second uplink control channel communication from a UE via a secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is configured, or otherwise supports means, based on power control information.

[0117] By including or configuring the communications manager 1120 in accordance with examples such as those described herein, the device 1105 (for example, a processor controlling the receiver 1110, transmitter 1115, communications manager 1120, or a combination thereof, or optionally coupled thereto) can support techniques for power control of uplink control channel communications of one or more SCCs, which enables more efficient use of communications resources and lower latency transmission of uplink control information.

[0118] Figure 12 shows a block diagram 1200 of a device 1205 that supports a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. Device 1205 may be an example of an aspect of device 1105 or base station 105 as described herein. Device 1205 may include a receiver 1210, a transmitter 1215, and a communications manager 1220. Device 1205 may also include a processor. Each of these components may communicate with one another (for example, via one or more buses).

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

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

[0121] Device 1205, or its various components, 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 1220 may include the configuration manager 1225, the 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 its various components, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in other ways in cooperation 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 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 at a base station in accordance with examples such as those disclosed herein. The configuration manager 1225 is a means for transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to user equipment, wherein the uplink carrier aggregation configuration is configured as a means for enabling uplink control channel communications on the primary component carrier and the secondary component carrier, and for providing power control information for the uplink control channel communications on the primary component carrier and the secondary component carrier, or may otherwise support such a means. The power control manager 1230 is a means for receiving a first uplink control channel communications from a UE via a primary component carrier, wherein the first uplink transmit power of the first uplink control channel communications is configured as a means for determining power control information, or may otherwise support such a means. The power control manager 1230 is a means for receiving a second uplink control channel communication from the UE via a secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is configured as a means based on power control information, or can otherwise support such means.

[0123] Figure 13 shows a block diagram 1300 of a communications manager 1320 supporting a power control technique for uplink control channels on multiple component carriers, according to an aspect of this disclosure. The communications manager 1320 may be an example of an aspect of communications manager 1120, communications manager 1220, or both, as described herein. The communications manager 1320, or various components thereof, may be an example of means for performing various aspects of a power control technique 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 each other directly or indirectly (for example, via one or more buses).

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

[0125] In some examples, to support the transmission of uplink carrier aggregation configurations, the frequency band manager 1335 may be configured as a means for transmitting a first power control configuration for primary component carriers and a second power control configuration for secondary component carriers, or may otherwise support such means. In some cases, the first power control configuration is applied to one or more component carriers in a first frequency band, and the second power control configuration is applied to one or more component carriers in a second frequency band. In some examples, the first power control configuration is provided for each component carrier in the first frequency band, and the second power control configuration is provided for each component carrier in the second frequency band. In some examples, the first and second power control configurations are provided in RRC signaling that provides uplink control channel power configuration parameters for the configured component carriers. In some examples, a first power control configuration includes a first designation of one or more component carriers in a first frequency band on which the first power control configuration should be used, and a second power control configuration includes a second designation of one or more component carriers in a second frequency band on which the second power control configuration should be used. In some examples, the first and second power control configurations 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 is configured as a means for transmitting a first power control command to the UE indicating a gradual increase or decrease in transmit power for a primary component carrier, or the means may be supported in other ways. In some examples, the closed-loop power control component 1340 is configured as a means for transmitting a second power control command to the UE indicating a gradual increase or decrease in transmit power for a secondary component carrier, or the means may be supported in other ways. In some examples, the closed-loop power control component 1340 is configured as 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, or the means may be supported in other ways.

[0127] In some examples, the frequency band manager 1335 may be configured as a means for configuring the UE to apply both a first power control command and a second power control command to the primary and secondary component carriers, respectively (for example, based on the fact that both the primary and secondary component carriers are in the same frequency band), or may otherwise support such a means. In some examples, the frequency band manager 1335 may be configured as 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 (for example, based on the fact that the primary and secondary component carriers are in different frequency bands), or may otherwise support such a means. In some examples, the closed-loop power control component 1340 may be configured as a means for sending instructions to the UE indicating whether to apply a power control command per component carrier or across multiple component carriers, or may otherwise support such a means.

[0128] Figure 14 shows a diagram of a system 1400 including a device 1405 that supports a power control technique for uplink control channels on multiple component carriers, according to an aspect of the present disclosure. Device 1405 may be an example of, or include, a component of, device 1105, device 1205, or base station 105 as described herein. Device 1405 may wirelessly communicate with one or more base stations 105, UE 115, or any combination thereof. Device 1405 may include components for bidirectional 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, a code 1435, a processor 1440, and an inter-station communications manager 1445. These components may communicate electronically or, in some cases, be coupled via one or more buses (e.g., bus 1450) (e.g., operably, communicatively, functionally, electronically, electrically).

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

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

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

[0132] The processor 1440 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, 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 memory (e.g., memory 1430) to cause 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, device 1405 or components of device 1405 may include the processor 1440 and memory 1430 coupled to the processor 1440, and the processor 1440 and memory 1430 may be configured to perform various functions described herein.

[0133] The inter-station communication manager 1445 can manage communication with other base stations 105 and may include a controller or scheduler to coordinate communication with the UE 115 in cooperation with other base stations 105. For example, the inter-station communication 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 communication manager 1445 may provide an X2 interface within the LTE / LTE-A wireless communication network technology for communication between base stations 105.

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

[0135] By including or configuring the communication manager 1420 in accordance with the examples described herein, the device 1405 can support techniques for power control of uplink control channel communications of one or more SCCs, which can result in more efficient use of communication resources, lower latency transmission of uplink control information, and improved communication reliability.

[0136] In some examples, the communications manager 1420 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or in cooperation with the transceiver 1415, 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, memory 1430, code 1435, or any combination thereof. For example, code 1435 may include instructions executable by the processor 1440 to cause 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 memory 1430 may be otherwise configured to perform or support such operations.

[0137] Figure 15 shows a flowchart illustrating method 1500, which supports a power control technique for uplink control channels on multiple component carriers, according to aspects of this disclosure. The operation of method 1500 may be implemented by a UE or its components as described herein. For example, the operation of method 1500 may be performed by UE 115, as described with reference to Figures 1 to 10. In some examples, the UE may execute a set of instructions to control a functional element of the UE to perform the functions described. In addition or alternatively, the UE may perform aspects of the functions described using dedicated hardware.

[0138] In 1505, the method may include receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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. The operation of 1505 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1505 may be performed by a configuration manager 925 as described with reference to Figure 9.

[0139] In 1510, the method may include transmitting a first uplink control channel communication to a base station via a primary component carrier using a first uplink transmit power based on power control information. The operation of 1510 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1510 may be performed by a power control manager 930, as described with reference to Figure 9.

[0140] In 1515, the method may include transmitting a second uplink control channel communication to a base station via a secondary component carrier using a second uplink transmit power based on power control information. The operation of 1515 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1515 may be performed by a power control manager 930, as described with reference to Figure 9.

[0141] Figure 16 shows a flowchart illustrating method 1600, according to aspects of this disclosure, for supporting a power control technique for uplink control channels on multiple component carriers. The operation of method 1600 may be implemented by a UE or its components as described herein. For example, the operation of method 1600 may be performed by a UE 115 as described with reference to Figures 1 to 10. In some examples, the UE may execute a set of instructions for controlling a functional element of the UE to perform the functions described. Additional or alternative, the UE may perform aspects of the functions described using dedicated hardware.

[0142] In 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, wherein 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 operation of 1605 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1605 may be performed by a frequency band manager 935 as described with reference to Figure 9.

[0143] In 1610, the method may include transmitting a first uplink control channel communication to a base station via a primary component carrier using a first uplink transmit power based on power control information. The operation of 1610 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1610 may be performed by a power control manager 930, as described with reference to Figure 9.

[0144] In 1615, the method may include transmitting a second uplink control channel communication to a base station via a secondary component carrier using a second uplink transmit power based on power control information. The operation of 1615 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1615 may be performed by a power control manager 930, as described with reference to Figure 9.

[0145] Figure 17 shows a flowchart illustrating method 1700, according to aspects of this disclosure, for supporting a power control technique for uplink control channels on multiple component carriers. The operation of method 1700 may be implemented by a UE or its components as described herein. For example, the operation of method 1700 may be performed by UE 115, as described with reference to Figures 1 to 10. In some examples, the UE may execute a set of instructions for controlling a functional element of the UE to perform the functions described. In addition or alternatively, the UE may perform aspects of the functions described using dedicated hardware.

[0146] In 1705, the method may include receiving instructions from a base station indicating whether to apply a power control command per component carrier or across multiple component carriers. The operation of 1705 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1705 may be performed by a closed-loop power control component 940, as described with reference to Figure 9.

[0147] In 1710, the method may include receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier. The operation of 1710 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1710 may be performed by a configuration manager 925, as described with reference to Figure 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] In 1715, the method may include receiving a first power control command from a base station indicating a gradual increase or decrease in the transmit power for the primary component carrier. Operation of 1715 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1715 may be performed by a closed-loop power control component 940, as described with reference to Figure 9.

[0149] In 1720, the method may include receiving a second power control command from a base station indicating a gradual increase or decrease in the transmit power for the secondary component carrier. Operation of 1720 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1720 may be performed by a closed-loop power control component 940, as described with reference to Figure 9.

[0150] In 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 carriers or secondary component carriers. The operation of 1725 may be carried out according to examples such as those disclosed herein. In some examples, the operation of 1725 may be carried out by a closed-loop power control component 940, as described with reference to Figure 9. In some cases, based on the fact that both the primary and secondary component carriers are in the same frequency band, both the first and second power control commands are applied to the primary and secondary component carriers, respectively. In some cases, based on the fact that the primary and secondary component carriers are 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] In 1730, the method may include transmitting a first uplink control channel communication to a base station via a primary component carrier using a first uplink transmit power based on power control information. The operation of 1730 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1730 may be performed by a power control manager 930, as described with reference to Figure 9.

[0152] In 1735, the method may include transmitting a second uplink control channel communication to a base station via a secondary component carrier using a second uplink transmit power based on power control information. The operation of 1735 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1735 may be performed by a power control manager 930, as described with reference to Figure 9.

[0153] Figure 18 shows a flowchart illustrating a method 1800 that supports a power control technique for uplink control channels on multiple component carriers, according to aspects of this disclosure. The operation of method 1800 may be implemented by a base station or its components as described herein. For example, the operation of method 1800 may be performed by a base station 105 as described with reference to Figures 1-6 and 11-14. In some examples, the base station may execute a set of instructions for controlling the base station's functional elements to perform the functions described. In addition or alternatively, the base station may perform aspects of the functions described using dedicated hardware.

[0154] In 1805, the method may include transmitting to user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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 uplink control channel communication on the primary component carrier and the secondary component carrier. The operation of 1805 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1805 may be performed by a configuration manager 1325 as described with reference to Figure 13.

[0155] In 1810, the method may include receiving a first uplink control channel communication from the UE via a primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is received based on power control information. The operation of 1810 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1810 may be performed by a power control manager 1330 as described with reference to Figure 13.

[0156] In 1815, the method may include receiving a second uplink control channel communication from the UE via a secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is received based on power control information. The operation of 1815 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1815 may be performed by a power control manager 1330 as described with reference to Figure 13.

[0157] Figure 19 shows a flowchart illustrating a method 1900 that supports a power control technique for uplink control channels on multiple component carriers, according to aspects of this disclosure. The operation of method 1900 may be implemented by a base station or its components as described herein. For example, the operation of method 1900 may be performed by a base station 105 as described with reference to Figures 1-6 and 11-14. In some examples, the base station may execute a set of instructions to control the base station's functional elements to perform the functions described. In addition or alternatively, the base station may perform aspects of the functions described using dedicated hardware.

[0158] In 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, wherein 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 operation of 1905 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1905 may be performed by a frequency band manager 1335 as described with reference to Figure 13.

[0159] In 1910, the method may include receiving a first uplink control channel communication from the UE via a primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is received based on power control information. The operation of 1910 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1910 may be performed by a power control manager 1330 as described with reference to Figure 13.

[0160] In 1915, the method may include receiving a second uplink control channel communication from the UE via a secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is received based on power control information. The operation of 1915 may be performed according to examples such as those disclosed herein. In some examples, the operation of 1915 may be performed by a power control manager 1330 as described with reference to Figure 13.

[0161] Figure 20 shows a flowchart illustrating a method 2000 that supports a power control technique for uplink control channels on multiple component carriers, according to aspects of this disclosure. The operation of method 2000 may be implemented by a base station or its components as described herein. For example, the operation of method 2000 may be performed by a base station 105 as described with reference to Figures 1-6 and 11-14. In some examples, the base station may execute a set of instructions for controlling the base station's functional elements to perform the functions described. In addition or alternatively, the base station may perform aspects of the functions described using dedicated hardware.

[0162] In 2005, the method may include sending instructions to the UE indicating whether to apply a power control command to each component carrier or to multiple component carriers. The operation of 2005 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2005 may be performed by a closed-loop power control component 1340, as described with reference to Figure 13. In some cases, the UE may be configured to apply both a first power control command and a second power control command to the primary and secondary component carriers, respectively, based on the fact that both the primary and secondary component carriers are in the same frequency band. In some cases, the UE may be configured to apply the first power control command to the primary component carrier and the second power control command to the secondary component carrier, based on the fact that the primary and secondary component carriers are in different frequency bands.

[0163] In 2010, the method may include transmitting to user equipment an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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. The operation of 2010 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2010 may be performed by a configuration manager 1325 as described with reference to Figure 13.

[0164] In 2015, the method may include sending a first power control command to the UE indicating a gradual increase or decrease in the transmit power for the primary component carrier. The operation of 2015 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2015 may be performed by a closed-loop power control component 1340, as described with reference to Figure 13.

[0165] In 2020, the method may include sending a second power control command to the UE indicating a gradual increase or decrease in the transmit power for the secondary component carrier. The operation of 2020 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2020 may be performed by a closed-loop power control component 1340, as described with reference to Figure 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 secondary component carrier.

[0166] In 2025, the method may include receiving a first uplink control channel communication from the UE via a primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is received based on power control information. The operation of 2025 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2025 may be performed by a power control manager 1330 as described with reference to Figure 13.

[0167] In 2030, the method may include receiving a second uplink control channel communication from the UE via a secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is received based on power control information. The operation of 2030 may be performed according to examples such as those disclosed herein. In some examples, the operation of 2030 may be performed by a power control manager 1330 as described with reference to Figure 13.

[0168] The following provides an overview of the aspects of this disclosure.

[0169] Embodiment 1: A method for wireless communication in a UE, comprising the steps of: receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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; transmitting the first uplink control channel communication to a base station via the primary component carrier using a first uplink transmit power at least partially based on the power control information; and transmitting the second uplink control channel communication to a base station via the secondary component carrier using a second uplink transmit power at least partially based on the power control information.

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

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

[0172] Embodiment 4: Any method of Embodiments 2 to 3, wherein the first power control configuration is received for each component carrier in the first group of component carriers, and the second power control configuration is received for each component carrier in the second group of component carriers.

[0173] Embodiment 5: The method of Embodiment 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] Embodiment 6: Any method of Embodiments 2 to 5, wherein the first power control configuration includes a first indication of one or more component carriers in a first frequency band on 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 on which the second power control configuration should be used.

[0175] Embodiment 7: The method of Embodiment 1, further comprising the steps of: receiving a first power control command from a base station indicating a gradual increase or decrease in transmit power for a primary component carrier; receiving a second power control command from a base station indicating a gradual increase or decrease in transmit power for a 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 secondary component carrier.

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

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

[0178] Embodiment 10: Any method of Embodiments 7 to 9, further comprising the step of accumulating a progressive increase or decrease in transmit power from a power control command, separately for each configured component carrier or across two or more configured component carriers.

[0179] Embodiment 11: Any method of Embodiments 7 to 10, further comprising the step of receiving instructions from a base station indicating whether to apply a power control command to each component carrier or to multiple component carriers.

[0180] Embodiment 12: 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), according to any of Embodiments 1 to 11.

[0181] Embodiment 13: A method for wireless communication at a base station, comprising the steps of: transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to user equipment, wherein 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 a UE via the primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is at least partially based on the power control information; and receiving a second uplink control channel communication from a UE via the secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is at least partially based on the power control information.

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

[0183] Embodiment 15: The method of Embodiment 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] Embodiment 16: Any method of Embodiments 14 to 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] Embodiment 17: Any method of Embodiments 14 to 16, wherein the first power control configuration includes a first indication of one or more component carriers in a first frequency band on 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 on which the second power control configuration should be used.

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

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

[0188] Embodiment 20: The method of Embodiment 18, further comprising the step of 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.

[0189] Embodiment 21: Any method of Embodiments 18 to 20, further comprising the step of sending an instruction to the UE indicating whether to apply a power control command to each component carrier or across multiple component carriers.

[0190] Embodiment 22: 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), according to any of Embodiments 13 to 21.

[0191] Embodiment 23: A device for wireless communication in a UE, comprising a processor, a memory coupled to the processor, and instructions stored in the memory that can be executed by the processor to cause the device to perform any of the methods of Embodiments 1 to 12.

[0192] Embodiment 24: An apparatus for wireless communication in a UE, comprising at least one means for performing any of the methods of Embodiments 1 to 12.

[0193] Embodiment 25: A non-temporary computer-readable medium for storing code for wireless communication in a UE, wherein the code includes instructions that can be executed by a processor to perform any of Embodiments 1 to 12.

[0194] Embodiment 26: A device for wireless communication at a base station, comprising a processor, a memory coupled to the processor, and instructions stored in the memory that can be executed by the processor to cause the device to perform any of the methods of Embodiments 13 to 22.

[0195] Embodiment 27: An apparatus for wireless communication at a base station, comprising at least one means for performing any of the methods of Embodiments 13 to 22.

[0196] Embodiment 28: A non-temporary computer-readable medium for storing code for wireless communication at a base station, wherein the code includes instructions that can be executed by a processor to perform any of the methods of Embodiments 13 to 22.

[0197] It should be noted that the methods described herein represent possible implementations, that the operations and steps may be reconfigured or otherwise modified, and that other implementations are possible. Furthermore, two or more embodiments of the methods may be combined.

[0198] While embodiments of LTE, LTE-A, LTE-A Pro, or NR systems may be described as examples, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used extensively in the description, the techniques described herein are applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR. For example, the techniques described may be applicable to various other wireless communication systems such as Ultra-Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and wireless technologies not expressly mentioned herein.

[0199] The information and signals described herein may be represented using any of the following different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips which may be mentioned throughout this description may be represented by voltage, electric current, electromagnetic waves, magnetic fields or magnetic particles, light fields or optical particles, or any combination thereof.

[0200] The various exemplary blocks and components described in this disclosure may be implemented or run using general-purpose processors, DSPs, ASICs, CPUs, FPGAs or other programmable logic devices, 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, a processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working 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 accompanying claims. For example, due to the nature of the 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 the distribution of parts of the functions so that they are implemented in various physical locations.

[0202] Computer-readable media include both non-temporary computer storage media and communication media, including any media that facilitates the transfer of computer programs from one location to another. Non-temporary storage media can be any available media that can be accessed by a general-purpose computer or a dedicated computer. Examples, but not limited to, non-temporary 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-temporary media 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 computer or a dedicated computer or a general-purpose processor or a dedicated processor. Any connection is also appropriately referred to as computer-readable media. For example, if 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, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used herein, disk and disc include CD, laserdisc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray® disc, where disk typically reproduces data magnetically and disc optically using a laser. Any combination of the above is also included in the scope of computer-readable media.

[0203] When used herein, including within the claims, “or” in a list of items (for example, 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 when 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 interpreted as a reference to a closed set of conditions. For example, an exemplary step described as “based on condition A” could be based on both condition A and condition B without departing from the scope of this disclosure. In other words, the phrase “based on” as used herein should be interpreted similarly to the phrase “at least partially based on.”

[0204] The term "decide" or "make a decision" encompasses a wide variety of actions, and therefore "making a decision" can include calculating, calculating, processing, deriving, investigating, looking up (such as by looking up in a table, database, or another data structure), confirming, etc. It can also include receiving (such as receiving information), accessing (such as accessing data in memory), etc. Furthermore, "making a decision" can include resolving, selecting, choosing, establishing, and other such similar actions.

[0205] In the attached diagrams, 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 similar components. When only the 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 or other subsequent reference labels.

[0206] The descriptions provided herein with respect to the accompanying drawings describe exemplary configurations and do not represent all examples that may be implemented or that fall within the scope of the claims. The term “example” as used herein means “acting as an example, case, or illustration,” and does not mean “preferred” or “advantageous over other examples.” Detailed descriptions include specific details to facilitate understanding of the techniques described. However, these techniques may be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the examples described.

[0207] The descriptions herein are provided to enable those skilled in the art to create or use this disclosure. Various modifications of this disclosure will become 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 this disclosure. Accordingly, this disclosure should be given the broadest scope that corresponds to the principles and novel features disclosed herein, and is not limited to the examples and designs described herein. [Explanation of symbols]

[0208] 100 Wireless Communication Systems 105 base stations, serving base stations 105-a base station 105-b base station 110 coverage areas, geographical coverage areas 110-a Coverage Area 115 UE 115-a UE 115-b UE 120 backhaul links 125 Communication Link 130 Core Network 135 Device-to-device (D2D) communication links, D2D communication links 140 Access Network Entities 145 Access Network Transmitting Entities 150 IP services 200 Wireless Communication Systems 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 Configurations 405 First frequency band 410 First CC 415 Second CC 420 Third CC 425 Second frequency band 430 The 4th CC 435 The 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 Configurations 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 Second power control command 535 Third power control command 540 Fourth power control command 545 Fifth power control command 550 Sixth power control command 555 The seventh power control command 600 Process Flows 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. A method for wireless communication in user equipment (UE), A step of receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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. The steps include receiving a first power control command from a base station indicating a gradual increase or decrease in the transmit power for the primary component carrier, The steps include receiving a second power control command from the base station indicating a gradual increase or decrease in the transmit power for the secondary component carrier, A step of applying both the first power control command and the second power control command to the primary component carrier and the secondary component carrier, wherein the first power control command and the second power control command are commands that adjust the transmit power determined based on the power control information, The steps of transmitting a first uplink control channel communication to the base station via the primary component carrier using a first uplink transmit power that is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command, The steps include: transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power that is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command; A method that includes this.

2. The method according to claim 1, wherein the power control information includes a first power control configuration for the primary component carrier and a second power control configuration for the secondary component carrier.

3. The method according to 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. The method according to 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 the configured component carriers.

5. The method according to any one of claims 2 to 4, wherein the first power control configuration includes a first indication of one or more component carriers in a first frequency band on 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 on which the second power control configuration should be used.

6. A step of accumulating the progressive increase or decrease of the transmitted power from the first power control command and the second power control command across two or more configured component carriers. The method according to any one of claims 1 to 5, further comprising:

7. The step of receiving an instruction from the base station indicating that the first power control command and the second power control command are to be applied across a plurality of component carriers. The method according to any one of claims 1 to 6, further comprising:

8. A method for wireless communication at a base station, A step of transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to a user equipment (UE), wherein 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. The steps include transmitting a first power control command to the UE indicating a gradual increase or decrease in the transmit power for the primary component carrier, A step of transmitting to the UE a second power control command indicating a gradual increase or decrease in transmit power for the secondary component carrier, wherein the UE is configured to apply both the first power control command and the second power control command to the primary component carrier and the secondary component carrier, respectively, and the first power control command and the second power control command are commands that adjust the transmit power determined based on the power control information, A step of receiving a first uplink control channel communication from the UE via the primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is at least partially based on the transmit power which is progressively increased or decreased by both the power control information and the first power control command and the second power control command, A step of receiving a second uplink control channel communication from the UE via the secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command. A method that includes this.

9. The method according to claim 8, wherein the power control information includes a first power control configuration for the primary component carrier and a second power control configuration for the secondary component carrier.

10. The method according to 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. The method according to 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. The method according to any one of claims 9 to 11, wherein the first power control configuration includes a first indication of one or more component carriers in a first frequency band on 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 on which the second power control configuration should be used.

13. A step of sending an instruction to the UE indicating that the first power control command and the second power control command are to be applied across a plurality of component carriers. The method according to any one of claims 8 to 12, further comprising:

14. A device for wireless communication in user equipment (UE), Processor and The memory coupled to the aforementioned processor, Instructions stored in the aforementioned memory and The device is equipped with the command, Receiving an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier, wherein 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 power control command from the base station indicating a gradual increase or decrease in the transmit power for the primary component carrier, Receiving a second power control command from the base station indicating a gradual increase or decrease in the transmit power for the secondary component carrier, The first power control command and the second power control command are applied to the primary component carrier and the secondary component carrier, respectively, wherein the first power control command and the second power control command are commands that adjust the transmit power determined based on the power control information. Transmitting a first uplink control channel communication to the base station via the primary component carrier using a first uplink transmit power that is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command, Transmitting a second uplink control channel communication to the base station via the secondary component carrier using a second uplink transmit power that is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command. A device that can be executed by the processor to perform the following.

15. A device for wireless communication at a base station, Processor and The memory coupled to the aforementioned processor, Instructions stored in the aforementioned memory and The device is equipped with the command, Transmitting an uplink carrier aggregation configuration for a primary component carrier and a secondary component carrier to a user equipment (UE), wherein 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. Sending a first power control command to the UE indicating a gradual increase or decrease in the transmit power for the primary component carrier, Transmitting to the UE a second power control command indicating a gradual increase or decrease in the transmit power for the secondary component carrier, wherein the UE is configured to apply both the first and second power control commands to the primary and secondary component carriers, respectively, and the first and second power control commands are commands that adjust the transmit power determined based on the power control information. Receiving a first uplink control channel communication from the UE via the primary component carrier, wherein the first uplink transmit power of the first uplink control channel communication is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command. Receiving a second uplink control channel communication from the UE via the secondary component carrier, wherein the second uplink transmit power of the second uplink control channel communication is at least partially based on the power control information and the transmit power which is progressively increased or decreased by both the first power control command and the second power control command. A device that can be executed by the processor to perform the following.

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