CN119866625A - Conditional Channel State Information (CSI) reporting for secondary cell (SCell) Physical Uplink Control Channel (PUCCH) activation - Google Patents

Abstract

Some aspects of the present disclosure relate to apparatuses and methods for implementing Channel State Information (CSI) reporting during activation of a Physical Uplink Control Channel (PUCCH) for a secondary cell (SCell). For example, a User Equipment (UE) may implement a reporting mechanism that reports CSI measurements using multiple PUCCH groups. The UE may indicate whether it is able to report CSI measurements for a SCell on a first PUCCH group corresponding to a primary cell (PCell) or a primary secondary cell (PSCell) and on a second PUCCH group corresponding to the SCell. Depending on the UE's capabilities, the network may configure PUCCH groups for the UE to report CSI measurements during activation of SCell PUCCHs.

Description

Conditional Channel State Information (CSI) reporting for SCell Physical Uplink Control Channel (PUCCH) activation

Background Art

Technical Field

The described aspects generally relate to mechanisms for a user equipment (UE) to report channel state information (CSI) corresponding to a secondary cell (SCell) during activation of a physical uplink control channel (PUCCH) of the SCell.

Related fields

In some examples, a user equipment (UE) may connect to a network via a base station to initiate wireless communication. One way this connection may occur is through carrier aggregation. When the network and the UE communicate via carrier aggregation, two network cells served by the corresponding base stations may communicate with the UE. For example, the UE may communicate with the primary cell (PCell) and then activate the secondary cell (SCell) to operate in carrier aggregation mode. This allows the UE to communicate with the PCell and the SCell at the same time. However, ambiguity arises during the activation process of the SCell and the physical uplink control channel (PUCCH) for the SCell. For example, it is unclear how the UE should report the channel state information (CSI) for the SCell. The SCell can provide a reference signal for measurement during the activation of the SCell PUCCH, but the UE may not be able to report the CSI information to the SCell.

Summary of the invention

Some aspects of the present disclosure relate to apparatus and methods for implementing CSI reporting for an SCell during activation of an SCell PUCCH. For example, some aspects of the present disclosure relate to apparatus and methods for implementing a reporting mechanism at a UE, wherein the UE indicates whether it is capable of dividing CSI reports into multiple PUCCH groups. For example, the UE may indicate whether it is capable of reporting CSI measurements for an SCell on a first PUCCH group corresponding to a PCell or a primary secondary cell (PSCell) and on a second PUCCH group corresponding to the SCell. Depending on the capabilities of the UE, the network may configure PUCCH groups for the UE to use to report CSI measurements during activation of the SCell PUCCH.

Some aspects of the present disclosure relate to a primary cell base station. The primary cell base station includes a transceiver configured to implement wireless communication with a user equipment (UE). The transceiver receives wireless communication from the UE via a physical uplink control channel (PUCCH). The primary cell base station also includes a processor communicatively coupled to the transceiver. The processor may be configured to receive a message from the UE indicating whether the UE supports reporting of separate channel state information (CSI). Based on the message indicating that the UE supports reporting of separate CSI, the processor is also configured to allocate a first PUCCH group for the UE to report a first CSI measurement of a first CSI resource associated with the secondary cell base station during activation of the secondary cell base station. The processor is also configured to allocate a second PUCCH group for the UE to report a second CSI measurement of a second CSI resource associated with the secondary cell base station during activation of the secondary cell base station. The processor is also configured to send identifiers of the first PUCCH group and the second PUCCH group to the UE.

In some aspects, the first PUCCH group corresponds to a primary cell base station and the second PUCCH group corresponds to a secondary cell base station.

In some aspects, the first PUCCH group corresponds to a primary cell base station and the first CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement.

In some aspects, the second PUCCH group corresponds to a secondary cell base station, and wherein the second CSI measurement is a channel quality indicator (CQI).

In some aspects, based on the message indicating that the UE does not support separate CSI reporting, the processor is configured to allocate a PUCCH group corresponding to the primary cell base station for the UE to report CSI measurements of CSI resources associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to send an identifier of the PUCCH group to the UE.

In some aspects, based on a message indicating that the UE does not support reporting of separate CSI, the processor is configured to allocate a first PUCCH group corresponding to the primary cell base station for the UE to report a layer 1 reference signal received power (L1-RSRP) measurement associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to allocate a second PUCCH group corresponding to the secondary cell base station for the UE to report a channel quality indicator (CQI) measurement associated with the secondary cell base station. The processor is also configured to: send an identifier of the first PUCCH group to the UE; and receive a report from the UE that the L1-RSRP measurement is a non-lowest index value. In response to receiving a report of the L1-RSRP measurement, the processor is also configured to send an identifier of the second PUCCH group to the UE.

In some aspects, based on the message indicating that the UE does not support reporting of separate CSI, the processor is configured to allocate a first PUCCH group corresponding to the primary cell base station for the UE to report a layer 1 reference signal received power (L1-RSRP) measurement associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to allocate a second PUCCH group corresponding to the secondary cell base station for the UE to report a channel quality indicator (CQI) measurement associated with the secondary cell base station. The processor is also configured to send an identifier of the first PUCCH group and the second PUCCH group to the UE, wherein the UE is configured to send the CQI measurement using the second PUCCH group after the UE has reported a non-lowest index value for the L1-RSRP measurement using the first PUCCH group.

In some aspects, based on a message indicating that the UE does not support reporting of separate CSI, the processor is configured to allocate a first PUCCH group corresponding to the primary cell base station for the UE to report a layer 1 reference signal received power (L1-RSRP) measurement associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to allocate a second PUCCH group corresponding to the secondary cell base station for the UE to report a channel quality indicator (CQI) measurement associated with the secondary cell base station. The processor is also configured to send identifiers of the first PUCCH group and the second PUCCH group to the UE, wherein the UE is configured to use the first PUCCH group to report the CQI measurement if the CQI measurement is an out-of-range value after the UE has reported a non-lowest index value for the L1-RSRP measurement on the first PUCCH group; and to use the second PUCCH group to send the CQI measurement if the CQI measurement is not an out-of-range value.

Some aspects of the present disclosure relate to a method performed by a primary cell, the method comprising: receiving a message from a user equipment (UE) at the primary cell indicating whether the UE supports reporting of separate channel state information (CSI). Based on the message indicating that the UE supports reporting of separate CSI, the method also includes allocating a first PUCCH group by the primary cell for the UE to report a first CSI measurement of a first CSI resource associated with the secondary cell during activation of the secondary cell. The method also includes allocating a second PUCCH group by the primary cell for the UE to report a second CSI measurement of a second CSI resource associated with the secondary cell during activation of the secondary cell. The method also includes sending, by the primary cell, identifiers of the first PUCCH group and the second PUCCH group to the UE.

Some aspects of the present disclosure relate to a user equipment (UE). The UE includes a transceiver configured to wirelessly communicate with a primary cell and a secondary cell, and a processor communicatively coupled to the transceiver. The processor may be configured to determine whether the UE supports reporting of separate channel state information (CSI). Based on the report that the UE supports separate CSI, the processor is also configured to send a message to the primary cell indicating that the UE supports reporting of separate CSI. The processor is also configured to receive an allocation of a first physical uplink control channel (PUCCH) group and a second PUCCH group. The processor is also configured to report a first CSI measurement of a first CSI resource associated with the secondary cell using a first PUCCH group during activation of the secondary cell, and to report a second CSI measurement of a second CSI resource associated with the secondary cell using a second PUCCH group during activation of the secondary cell.

In some aspects, the first PUCCH group corresponds to a primary cell and the second PUCCH group corresponds to a secondary cell.

In some aspects, the first PUCCH group corresponds to a primary cell and the first CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement.

In some aspects, the second PUCCH group corresponds to a secondary cell and the second CSI measurement is a channel quality indicator (CQI).

Some aspects of the present disclosure relate to a primary cell base station. The primary cell base station includes a transceiver configured to implement wireless communication with a user equipment (UE). The transceiver receives wireless communication from the UE via a physical uplink control channel (PUCCH). The primary cell base station also includes a processor communicatively coupled to the transceiver. The processor may be configured to receive a message from the UE indicating whether the UE supports reporting of separate channel state information (CSI). Based on the message indicating that the UE supports reporting of separate CSI, the processor is also configured to allocate a first PUCCH group based on a CSI measurement of a CSI resource associated with a secondary cell base station satisfying a first condition, so that the UE reports the CSI measurement during activation of the secondary cell base station. The processor is also configured to allocate a second PUCCH group based on a CSI measurement of a CSI resource associated with the secondary cell base station satisfying a second condition, so that the UE reports the CSI measurement during activation of the secondary cell base station. The processor is also configured to send identifiers of the first PUCCH group and the second PUCCH group to the UE.

In some aspects, the first PUCCH group corresponds to a primary cell base station and the second PUCCH group corresponds to a secondary cell base station.

In some aspects, the CSI measurement is a channel quality indicator (CQI) and the first condition corresponds to a CQI value that is out of range; or the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement and the first condition corresponds to a lowest index of the L1-RSRP.

In some aspects, the CSI measurement is a channel quality indicator (CQI) and the second condition corresponds to a valid or in-range CQI value; or the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement and the second condition corresponds to a non-lowest index of the L1-RSRP.

In some aspects, based on the message indicating that the UE does not support separate CSI reporting, the processor is configured to allocate a PUCCH group corresponding to the primary cell base station for the UE to report CSI measurements of CSI resources associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to send an identifier of the PUCCH group to the UE.

In some aspects, based on a message indicating that the UE does not support reporting of separate CSI, the processor is configured to allocate a first PUCCH group corresponding to the primary cell base station for the UE to report a layer 1 reference signal received power (L1-RSRP) measurement associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to allocate a second PUCCH group corresponding to the secondary cell base station for the UE to report a channel quality indicator (CQI) measurement associated with the secondary cell base station. The processor is also configured to: send an identifier of the first PUCCH group to the UE; and receive a report from the UE that the L1-RSRP measurement is a non-lowest index value. In response to receiving a report of the L1-RSRP measurement, the processor is also configured to send an identifier of the second PUCCH group to the UE.

In some aspects, based on the message indicating that the UE does not support reporting of separate CSI, the processor is configured to allocate a first PUCCH group corresponding to the primary cell base station for the UE to report a layer 1 reference signal received power (L1-RSRP) measurement associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to allocate a second PUCCH group corresponding to the secondary cell base station for the UE to report a channel quality indicator (CQI) measurement associated with the secondary cell base station. The processor is also configured to send an identifier of the first PUCCH group and the second PUCCH group to the UE, wherein the UE is configured to send the CQI measurement using the second PUCCH group after the UE has reported a non-lowest index value for the L1-RSRP measurement using the first PUCCH group.

In some aspects, based on a message indicating that the UE does not support reporting of separate CSI, the processor is configured to allocate a first PUCCH group corresponding to the primary cell base station for the UE to report a layer 1 reference signal received power (L1-RSRP) measurement associated with the secondary cell base station during activation of the secondary cell. The processor is also configured to allocate a second PUCCH group corresponding to the secondary cell base station for the UE to report a channel quality indicator (CQI) measurement associated with the secondary cell base station. The processor is also configured to send identifiers of the first PUCCH group and the second PUCCH group to the UE, wherein the UE is configured to use the first PUCCH group to report the CQI measurement if the CQI measurement is an out-of-range value after the UE has reported a non-lowest index value for the L1-RSRP measurement on the first PUCCH group; and to use the second PUCCH group to send the CQI measurement if the CQI measurement is not an out-of-range value.

Some aspects of the present disclosure relate to a method performed by a primary cell, the method comprising: receiving a message from a user equipment (UE) at the primary cell indicating whether the UE supports separate reporting of channel state information (CSI). Based on the message indicating that the UE supports separate reporting of CSI, the method also includes allocating a first PUCCH group by the primary cell for the UE to report the CSI measurement during activation of the secondary cell based on a CSI measurement of a CSI resource associated with the secondary cell satisfying a first condition. The method also includes allocating a second PUCCH group by the primary cell for the UE to report the CSI measurement during activation of the secondary cell based on a CSI measurement of a CSI resource associated with the secondary cell satisfying a second condition. The method also includes sending, by the primary cell, identifiers of the first PUCCH group and the second PUCCH group to the UE.

Some aspects of the present disclosure relate to a user equipment (UE). The UE includes a transceiver configured to wirelessly communicate with a primary cell and a secondary cell, and a processor communicatively coupled to the transceiver. The processor may be configured to determine whether the UE supports reporting of separate channel state information (CSI). Based on the report that the UE supports separate CSI, the processor is also configured to send a message to the primary cell indicating that the UE supports reporting of separate CSI. The processor is also configured to receive an allocation of a first physical uplink control channel (PUCCH) group and a second PUCCH group. Based on the CSI measurement of the CSI resources associated with the secondary cell satisfying a first condition, the processor is also configured to use the first PUCCH group to report the CSI measurement. Based on the CSI measurement of the CSI resources associated with the secondary cell satisfying a second condition, the processor is also configured to use the second PUCCH group to report the CSI measurement.

In some aspects, the first PUCCH group corresponds to a primary cell and the second PUCCH group corresponds to a secondary cell.

In some aspects, the CSI measurement is a channel quality indicator (CQI), and the first condition corresponds to an out-of-range CQI value.

In some aspects, the CSI measurement is a channel quality indicator (CQI), and the second condition corresponds to a CQI value that is valid or within a range.

The present invention is provided for the purpose of illustrating some aspects only, so as to provide an understanding of the subject matter described herein. Therefore, the above-mentioned features are only examples and should not be understood as narrowing the scope or essence of the subject matter in the present disclosure. Other features, aspects and advantages of the present disclosure will become apparent from the following detailed description, drawings and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to make and use the present disclosure.

1A illustrates an example system that implements CSI reporting for SCell PUCCH activation in accordance with some aspects of the present disclosure.

1B illustrates an example system that implements CSI reporting for SCell PUCCH activation with a base station according to some aspects of the present disclosure.

2 illustrates a block diagram of an example system of an electronic device implementing CSI reporting for SCell PUCCH activation according to some aspects of the present disclosure.

3A illustrates an example method for a system (eg, a base station) to allocate two PUCCH groups for a UE to report CSI measurements corresponding to a SCell according to some aspects of the present disclosure.

3B illustrates an example method for a system (eg, UE) to report CSI measurements corresponding to a SCell using two PUCCH groups according to some aspects of the present disclosure.

4A illustrates an example method for a system (eg, a base station) to allocate two PUCCH groups based on one or more conditions for a UE to report CSI measurements corresponding to a SCell according to some aspects of the present disclosure.

4B illustrates an example method for a system (eg, UE) to report CSI measurements corresponding to a SCell using two PUCCH groups based on one or more conditions, according to some aspects of the present disclosure.

5 illustrates an example method for a system (eg, a base station) to allocate a PCell PUCCH group for a UE to report CSI measurements when the UE is not capable of reporting separation according to some aspects of the present disclosure.

6 illustrates an example method for a system (eg, a base station) to allocate two PUCCH groups for a UE to report CSI measurements based on the type of CSI measurement when the UE is not capable of report separation according to some aspects of the present disclosure.

7 illustrates an example method for a system (eg, a base station) to allocate two PUCCH groups based on the type of CSI measurement and preconfigure the UE to report CSI measurements when the UE is not capable of reporting separation according to some aspects of the present disclosure.

8 illustrates an example method for a system (eg, a base station) to allocate two PUCCH groups for a UE to report CSI measurements based on the value of the CSI measurements when the UE is not capable of report separation according to some aspects of the present disclosure.

9 is an example computer system for implementing some aspects or portions thereof.

The present disclosure is described with reference to the accompanying drawings. In the drawings, generally, like reference numerals indicate identical or functionally similar elements. Additionally, generally, the leftmost digit of a reference numeral identifies the drawing in which the reference numeral first appears.

DETAILED DESCRIPTION

Some aspects of the present disclosure relate to apparatus and methods for implementing CSI reporting for an SCell during activation of an SCell PUCCH. For example, some aspects of the present disclosure relate to apparatus and methods for implementing a reporting mechanism at a UE, wherein the UE indicates whether it is capable of dividing CSI reports into multiple PUCCH groups. For example, the UE may indicate whether it is capable of reporting CSI measurements for the SCell on a first PUCCH group corresponding to the PCell and on a second PUCCH group corresponding to the SCell. Depending on the capabilities of the UE, the network may configure PUCCH groups for the UE to use to report CSI measurements during activation of the SCell PUCCH.

In some examples, aspects of the present disclosure may be performed by a network and/or UE operating in accordance with fifth generation (5G) wireless technology for digital cellular networks as defined by the Third Generation Partnership Project (3GPP). Additionally or alternatively, aspects of the present disclosure may be performed by a network and/or UE operating in accordance with Release 15 (Rel-15), Release 16 (Rel-16), Release 17 (Rel-17), Rel-17 New Radio (NR), etc. However, aspects of the present disclosure are not limited to these examples, and one or more mechanisms of the present disclosure may be implemented by other networks and/or UEs for implementing CSI reporting during SCell PUCCH activation.

1A illustrates an example system 100A that implements CSI reporting for SCell PUCCH activation according to some aspects of the present disclosure. The example system 100A is provided for illustration purposes only and not to limit the disclosed aspects.

System 100A depicts an example configuration of a UE 170 and a network operating in a dual connectivity mode. Dual connectivity can provide improved network coverage and/or data rates to UE 170. This can be achieved using carrier aggregation. For example, multiple carriers can be combined to form a data channel to increase the capacity of the network. When dual connectivity is provided, a master cell group (MCG) 110 can interact with a secondary cell group (SCG) 120. MCG 110 can include a primary cell (PCell) 130 and one or more secondary cells (SCells) 140. As further explained with reference to FIG. 1B, each cell (e.g., PCell 130 and/or SCell 140) can correspond to a corresponding base station or be represented by a corresponding base station. MCG 110 can refer to a cell group in which UE 170 initiates random access to a communication network. For example, UE 170 can initiate access to a network using PCell 130. Within MCG 110, UE 170 can interact with SCell 140 to communicate using carrier aggregation. As discussed further below, UE 170 may perform an activation procedure to configure a physical uplink control channel (PUCCH) corresponding to SCell 140 .

In some aspects, the UE 170 may additionally communicate with a primary secondary cell (PSCell) 150 corresponding to the SCG 120. The PSCell 150 may refer to a primary cell corresponding to the SCG 120. Similar to the PCell 130, the PSCell 150 may be the initial access node for the UE 170 to access the SCG 120 and dual connectivity communications. The UE 170 may also communicate with the SCell 160 within the SCG 120 via carrier aggregation. The SCG 120 may include one or more SCells 160. The SCell 160 may be similar to the SCell 140. The following discussion will focus on the activation of the PUCCH corresponding to the SCell 140.

As discussed further below, the term "primary cell" may refer to PCell 130 and/or PSCell 150. In some aspects, UE 170 may communicate with the PUCCH corresponding to PCell 130 and/or PSCell 150. The "primary cell" may also be referred to as a "spCell". In some aspects, the "primary cell" may refer to a cell identified based on a random access performed by UE 170. The term "secondary cell" may refer to SCell 140 and/or SCell 160. In some aspects, the "secondary cell" may refer to a second cell other than PCell 130 and/or PSCell 150 that performs carrier aggregation communications with UE 170. Once activated, one or more secondary cells may communicate with UE 170. In some aspects, the secondary cells may be quickly activated or deactivated to address various communication service modes. There are some ambiguities during the activation process of the SCell or secondary cell, which will be further addressed below.

1B illustrates an example system 100B that implements CSI reporting for SCell PUCCH activation with a base station according to some aspects of the present disclosure. The example system 100B is provided for illustration purposes only and is not intended to limit the disclosed aspects.

System 100B may include, but is not limited to, one or more network nodes (e.g., base stations such as eNB, gNB, etc.) 130, 140, and 150 and an electronic device (e.g., UE) 170. Base stations 130, 140, and 150 may correspond to or represent PCell 130, SCell 140, and PSCell 150, respectively, as described with reference to FIG. 1A. Electronic device 170 (hereinafter referred to as UE 170) may be configured to operate based on a wide variety of wireless communication technologies. These technologies may include, but are not limited to, technologies based on the third generation partnership project (3GPP) standard. For example, UE 170 may be configured to operate using Rel-15, Rel-16, Rel-17, or other versions. UE 170 may include, but is not limited to, wireless communication devices, smart phones, laptops, desktop computers, tablets, personal assistants, monitors, televisions, wearable devices, Internet of Things (IoT), vehicle communication devices, and the like. The network nodes 130, 140, 150 (referred to herein as base stations or cells) may include one or more nodes configured to operate based on a variety of wireless communication technologies (such as, but not limited to, technologies based on 3GPP standards). For example, the base stations 130, 140, 150 may include one or more nodes configured to operate using Rel-15, Rel-16, Rel-17 or other versions.

According to some aspects, UE 170 can be connected to base stations 130, 140 and 150 using carriers 135, 145 and 155, respectively, and can communicate with them. According to some aspects, carriers 135, 145 and 155 can correspond to individual carriers. In addition or alternatively, carriers 135, 145 and 155 may include two or more component carriers (CCs). In other words, UE 170 can implement carrier aggregation (CA). For example, UE 170 can use multiple carriers to communicate with a primary cell (base station 130 and/or 150) and a secondary cell (base station 140).

In some aspects, carriers 135, 145, and 155 may correspond to physical uplink control channel (PUCCH) communications between UE 170 and base stations 130, 140, 150, respectively. The PUCCH may carry uplink control information from UE 170 to a specific base station or cell. For example, UE 170 may establish a PUCCH with a PCell or base station 130. UE 170 may also establish another PUCCH with a PSCell or base station 150. To provide carrier aggregation, UE 170 may also perform an activation process to activate a PUCCH corresponding to an SCell or base station 140. In some aspects, UE 170 may initially communicate with base stations 130, 150 (PCell 130 and/or PSCell 150) and then activate a PUCCH corresponding to base station 140 (SCell 140).

When the PUCCH corresponding to the base station 130, 140, 150 is activated, the UE 170 may report channel state information (CSI). CSI may refer to the quality of a particular channel between the base station 130, 140, 150 and the UE 170. The CSI may include one or more measurements performed by the UE 170 and reported to the base station 130, 140, 150. Some CSI measurements include layer 1 reference signal received power (L1-RSRP), channel quality indicator (CQI), rank indicator (RI), precoding matrix indicator (PMI), CSI-RS source indicator (CRI), SS/PBCH source block indicator (SSBRI), layer indicator (LI), and/or other CSI measurements. Although the following discussion focuses on L1-RSRP and CQI, the present disclosure is also applicable to reporting these other CSI measurements. In addition, the following discussion of these parameters generally relates to the network connecting the base stations 130, 140, 150 and the processing of the report. 3 to 8 further describe CSI reporting for SCell 140 or secondary cell activation.

L1-RSRP may be a beam measurement performed by UE 170. For example, the network (via a base station) may send reference signal resources corresponding to different transmit beams for detection by UE 170. UE 170 may measure the L1-RSRP for each of these transmit beams. For example, the network may send eight different reference signals and/or instruct UE 170 to perform eight L1-RSRP measurements. UE 170 may then report the results of the measurements to the network via the base station. Using the L1-RSRP measurements, the network may identify the beam or reference signal with the strongest received signal at UE 170 and use the identified beam for data communication. That is, the network may associate the transmit beam carrying UE data with the corresponding identified reference signal. The network may use the reported L1-RSRP measurements from UE 170 to determine a transmit configuration indicator (TCI) for UE 170. The TCI indicates a specific beam used to transmit data to UE 170.

CQI may be an indicator of channel quality. It may be expressed as an index value. In some aspects, CQI may also be a null value or an out-of-range (OOR) value. CQI may correspond to a handshake mechanism between the network and UE 170. CQI may inform the network whether UE 170 has completed activation for a particular PUCCH. For example, UE 170 may receive an activation command and then report CQI to the network. In some aspects, the report may be periodic. However, during activation of a particular PUCCH, UE 170 has not yet completed activation and may therefore report an OOR value for CQI. UE 170 may continue to report OOR values until UE 170 completes activation of PUCCH. For example, as further described below, this may be applied to activation of PUCCH for SCell 140. After activating PUCCH, UE 170 may report a valid CQI value. A valid CQI may be an index value different from an OOR value. The report of the effective CQI informs the network that the UE 170 has completed the activation of the PUCCH. The network can then continue to communicate with the UE 170. For example, the UE 170 can periodically report the OOR value during the activation of the SCell 140. When the activation is complete, the UE 170 can report the effective CQI to the network to indicate that the SCell 140 has been activated and the UE 170 is ready to communicate with the SCell 140.

While L1-RSRP measurements and CQI have been described with reference to a network connecting base stations 130, 140, and 150, the present disclosure will further address specific communication paths for CSI reporting during activation of the PUCCH for SCell 140. Some ambiguity arises during activation of the PUCCH for SCell 140. For example, SCell 140 may provide reference signals for measurements, but if uplink communications have not yet been established for UE 170 to use the PUCCH corresponding to SCell 140, it may not be clear where UE 170 should report its CSI measurements. The PUCCH corresponding to SCell 140 may not be ready for use. In this case, UE 170 may perform L1-RSRP and CQI measurements and reporting related to SCell 140 (i.e., the same target cell), but may not have to report these measurements back to SCell 140 during its PUCCH activation.

To resolve this ambiguity, the process described below addresses the reporting of CSI information separated between multiple PUCCH groups. For example, UE 170 can use PUCCH corresponding to PCell 130, PSCell 150 and/or SCell 140 to report CSI measurements including L1-RSRP measurements and/or CQI measurements. In this way, UE 170 can perform CSI measurements related to SCell 140, but can use different PUCCH groups corresponding to cells different from the cell of SCell 140 to report these measurements. That is, for CSI reporting of a specific cell, the following process outlines the manner in which UE 170 reports measurements using different cells. In addition, these processes take into account the situation where UE 170 may not have the ability to perform such separation of CSI reporting. In this way, the network can facilitate communication with UE 170 that can use different PUCCH groups to separate CSI reports for specific cells (e.g., SCell 140) and with UE 170 that cannot use different PUCCH groups to separate CSI reports for specific cells.

FIG2 illustrates a block diagram of an example system 200 of an electronic device for implementing CSI reporting for SCell PUCCH activation according to some aspects of the present disclosure. System 200 can be any electronic device (e.g., base station 130, 140, 150 and/or UE 170) of system 100A, 100B. System 200 includes a processor 210, one or more transceivers 220, a communication infrastructure 240, a memory 250, an operating system 252, an application 254, a threshold 256, a timer 258 and/or an antenna 260. The illustrated system is provided as an exemplary portion of system 200, and system 200 may include other circuits and subsystems. In addition, although the system of system 200 is illustrated as a separate component, aspects of the present disclosure may include any combination of these components, fewer components, or more components. In addition, the system 200 of various aspects of the present disclosure may include any number of processors, transceivers, communication infrastructure, memory, operating system, application, and antenna.

The memory 250 may include random access memory (RAM) and/or cache, and may include control logic components (e.g., computer software) and/or data. The memory 250 may include other storage devices or memories, such as, but not limited to, a hard drive and/or a removable storage device/unit. According to some examples, an operating system 252 may be stored in the memory 250. The operating system 252 may manage data transmission between the memory 250, one or more application programs 254, the processor 210, and/or one or more transceivers 220. In some examples, the operating system 252 maintains one or more network protocol stacks (e.g., an Internet protocol stack, a cellular protocol stack, etc.) that may include multiple logical layers. At the corresponding layer of the protocol stack, the operating system 252 includes control mechanisms and data structures to perform functions associated with the layer.

According to some examples, applications 254 may be stored in memory 250. Applications 254 may include applications (e.g., user applications) used by wireless system 200 and/or a user of wireless system 200. Applications in applications 254 may include applications such as, but not limited to, radio streaming, video streaming, remote control, and/or other user applications.

According to some aspects, memory 250 may store different thresholds 256. Thresholds 256 may include, but are not limited to, BLER thresholds, retransmission thresholds, SINR thresholds, HARQ thresholds, DL channel quality thresholds, UL channel quality thresholds, etc. Memory 250 may store timers 258. Timers 256 may include timers and/or counters as discussed herein. However, aspects of the present disclosure are not limited to these examples, and memory 250 may include other thresholds, timers, and/or counters.

The system 200 may also include a communication infrastructure 240. The communication infrastructure 240 provides, for example, communication between the processor 210, one or more transceivers 220, and the memory 250. In some implementations, the communication infrastructure 240 may be a bus. As described herein, the processor 210, together with instructions stored in the memory 250, performs operations that enable the system 200 to implement CSI reporting for SCell PUCCH activation. Alternatively, the processor may be "hard coded" to perform operations that enable the system 200 to implement CSI reporting for SCell PUCCH activation, as described herein.

According to some aspects, one or more transceivers 220 send and receive communication signals that support the operation of the system 200 (including but not limited to CSI reports for SCell PUCCH activation) and may be coupled to an antenna 260. Antenna 260 may include one or more antennas that may be the same or different types. The one or more transceivers 220 allow the system 200 to communicate with other devices that may be wired and/or wireless. In some examples, one or more transceivers 220 may include a processor, a controller, a radio component, a socket, a plug, a buffer, and similar circuits/devices for connecting to a network and communicating on the network. According to some examples, one or more transceivers 220 include one or more circuits for connecting to a wired network and/or a wireless network and communicating on a wired network and/or a wireless network.

According to some aspects, one or more transceivers 220 may include a cellular subsystem, a WLAN subsystem, and/or a Bluetooth ^™ subsystem, each of which includes its own radio transceiver and protocol, as will be understood by those skilled in the art based on the discussion provided herein. In some specific implementations, one or more transceivers 220 may include more or fewer systems for communicating with other devices.

In some examples, one or more transceivers 220 may include one or more circuits (including a WLAN transceiver) to enable connection and communication through a WLAN network (such as, but not limited to, a network based on the standards described in IEEE 802.11). Additionally or alternatively, one or more transceivers 220 may include one or more circuits (including a Bluetooth ^™ transceiver) to enable connection and communication based on, for example, a Bluetooth ^™ protocol, a Bluetooth ^™ low energy protocol, or a Bluetooth ^™ low energy long range protocol. For example, transceiver 220n may include a Bluetooth ^™ transceiver.

Additionally, the one or more transceivers 220 may include one or more circuits (including a cellular transceiver) for connecting to and communicating on a cellular network. The cellular network may include, but is not limited to, 3G/4G/5G networks such as Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), etc. For example, the one or more transceivers 220a-220n may be configured to operate in accordance with one or more of Rel-15, Rel-16, Rel-17, or other versions of the 3GPP standard.

According to some aspects, processor 210 alone or in combination with computer instructions stored within memory 250 and/or one or more transceivers 220 implements CSI reporting for SCell PUCCH activation, as discussed herein.

FIG. 3A illustrates an example method for a system (e.g., a base station) to allocate two PUCCH groups for a UE to report CSI measurements corresponding to an SCell according to some aspects of the present disclosure. For convenience and not limitation, FIG. 3A may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 300A may represent an operation of a base station (e.g., PCell 130 or PSCell 150 of FIG. 1A or a corresponding base station 130 or 150 of FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 300A may also be performed by the system 200 of FIG. 2 and/or the computer system 900 of FIG. 9. However, method 300A is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that not all operations may be required and that the operations may not be performed in the same order as shown in FIG. 3A .

At 302, the primary cell may receive a message from UE 170 indicating whether UE 170 supports separating reports of channel state information (CSI). As previously explained, the primary cell may be PCell 130 or PSCell 150. UE 170 may have established communication with the primary cell. For example, UE 170 may be configured to provide CSI information using a PUCCH group corresponding to the primary cell. In some aspects, UE 170 may provide an indication of whether it supports the ability to separate CSI reports onto multiple PUCCH groups. For example, this may refer to using two or more PUCCH groups corresponding to different cells. UE 170 may send a message to the primary cell to indicate that it is able to use multiple cells to separate CSI reports for a specific cell. The message may indicate the ability to separate CSI reports for reference signals provided by the secondary cell.

At 304, the primary cell may determine whether the UE 170 supports split CSI reporting. For example, the primary cell may perform the determination based on a message received from the UE 170. If the UE 170 has signaled that it does not support the capability, then at 306, the primary cell may interact with the UE 170 via one or more of the processes described with reference to FIGS. 5 to 8. The methods described with reference to FIGS. 5 to 8 provide instructions to the UE 170 that cannot split CSI reporting. If the UE 170 has indicated that it supports the capability to split CSI reporting, the primary cell moves to 308. The indication that the UE 170 supports split CSI reporting indicates that the primary cell may allocate two different PUCCH groups for reporting of measurements corresponding to a specific cell, such as a secondary cell.

At 308, the primary cell may allocate a first PUCCH group for the UE 170 to report a first CSI measurement of a first CSI resource associated with the secondary cell during activation of the secondary cell. At 310, the primary cell may allocate a second PUCCH group for the UE 170 to report a second CSI measurement of a second CSI resource associated with the secondary cell during activation of the secondary cell.

For example, when performing allocation, the first PUCCH group may correspond to the primary cell and the second PUCCH group may correspond to the secondary cell. UE 170 may perform CSI measurements based on CSI resources or reference signals sent by the secondary cell. That is, UE 170 may perform one or more CSI measurements associated with the secondary cell. These measurements may occur during activation of the secondary cell. Based on signaling of UE 170 having the ability to separate the reporting of these CSI measurements, UE 170 may use the first PUCCH group and the second PUCCH group to report CSI measurements associated with the secondary cell. In some aspects, this may correspond to UE 170 sending a first CSI measurement to the primary cell (using the PUCCH of the primary cell) and sending a second CSI measurement to the secondary cell (using the PUCCH of the secondary cell).

In some aspects, the UE 170 may report an L1-RSRP measurement and a CQI, both of which are associated with a secondary cell. For example, the L1-RSRP measurement may correspond to a first CSI measurement, and the CQI report may correspond to a second CSI measurement. Both may correspond to CSI resources from a secondary cell being activated, where "being activated" refers to a secondary cell that is in the process of being activated for UE communication. During activation of the PUCCH for the secondary cell, the primary cell may allocate the L1-RSRP report to the first PUCCH group corresponding to the primary cell. The primary cell may also allocate the CQI report to the second PUCCH group corresponding to the secondary cell. The primary cell or the network may perform this allocation based on the UE 170 being able to support separate PUCCH reports for a specific cell (e.g., a secondary cell). Although L1-RSRP and CQI are discussed here, the separation of CSI reporting may also be applied to other CSI measurements as previously discussed.

For example, UE 170 may report L1-RSRP measurements and CQI associated with SCell 140. Both may correspond to CSI resources to SCell 140 being activated. During activation of PUCCH for SCell 140, PCell 130 may allocate L1-RSRP reports to a first PUCCH group corresponding to PCell 130. PCell 130 may also allocate CQI reports to a second PUCCH group corresponding to SCell 140. PCell 130 may perform this allocation based on UE 170 being able to support separate CSI reporting for SCell 140.

At 312, the primary cell may send identities of the first PUCCH group and the second PUCCH group to the UE 170. This informs the UE 170 of the allocation and where to send its CSI measurements.

FIG. 3B illustrates an example method for a system (e.g., UE) to report CSI measurements corresponding to SCell using two PUCCH groups according to some aspects of the present disclosure. For convenience and not limitation, FIG. 3B may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 300B may represent an operation of a UE (e.g., UE 170 of FIG. 1A or FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 300B may also be performed by the system 200 of FIG. 2 and/or the computer system 900 of FIG. 9. However, method 300B is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that all operations may not be required, and these operations may not be performed in the same order as shown in FIG. 3B.

The method 300B may correspond to UE operations that supplement the operations described in the method 300A with reference to Figure 3A. The description of the UE operations provided for the method 300A also applies to the method 300B.

At 314 and 316, UE 170 may determine whether UE 170 supports separate CSI reporting. If UE 170 does not support this capability, then at 318, UE 170 may interact with the primary cell as described with reference to Figures 5 to 8. If UE 170 determines that it supports separate CSI reporting, then at 320, UE 170 sends a message to the primary cell indicating that the UE supports separate CSI reporting.

At 322, UE 170 may receive an allocation of a first PUCCH group and a second PUCCH group. At 324, UE 170 may report a first CSI measurement of a first CSI resource associated with a secondary cell using the first PUCCH group during activation of the secondary cell. At 326, UE 170 may report a second CSI measurement of a second CSI resource associated with a secondary cell using the second PUCCH group during activation of the secondary cell.

As previously explained, the first PUCCH group may correspond to a primary cell. The UE 170 may use the first PUCCH group to report L1-RSRP measurements. The second PUCCH group may correspond to a secondary cell. The UE 170 may use the second PUCCH group to report CQI measurements.

For example, UE 170 may report L1-RSRP measurements and CQI associated with SCell 140. Both may correspond to CSI resources to SCell 140 being activated. During activation of PUCCH for SCell 140, UE 170 may report L1-RSRP measurements via a first PUCCH group corresponding to PCell 130. UE 170 may report CQI via a second PUCCH group corresponding to SCell 140. This may occur when UE 170 has the capability to support separate CSI reporting for SCell 140.

FIG. 4A illustrates an example method for a system (e.g., a base station) to allocate two PUCCH groups based on one or more conditions for a UE to report CSI measurements corresponding to an SCell according to some aspects of the present disclosure. For convenience and not limitation, FIG. 4A may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 400A may represent an operation of a base station (e.g., PCell 130 or PSCell 150 of FIG. 1A or base station 130 or 150 of FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 400A may also be performed by system 200 of FIG. 2 and/or computer system 900 of FIG. 9. However, method 400A is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that not all operations may be required and that the operations may not be performed in the same order as shown in FIG. 4A .

At 402, the primary cell may receive a message from UE 170 indicating whether UE 170 supports separating reports of channel state information (CSI). As previously explained, the primary cell may be PCell 130 or PSCell 150. UE 170 may have established communication with the primary cell. For example, UE 170 may be configured to provide CSI information using a PUCCH group corresponding to the primary cell. In some aspects, UE 170 may provide an indication of whether it supports the ability to separate CSI reports onto multiple PUCCH groups. For example, this may refer to using two or more PUCCH groups corresponding to different cells. UE 170 may send a message to the primary cell to indicate that it is able to use multiple cells to separate CSI reports for a specific cell. The message may indicate the ability to separate CSI reports for reference signals provided by the secondary cell.

At 404, the primary cell may determine whether the UE 170 supports split CSI reporting. For example, the primary cell may perform the determination based on a message received from the UE 170. If the UE 170 has signaled that it does not support the capability, then at 406, the primary cell may interact with the UE 170 via one or more of the processes described with reference to FIGS. 5 to 8. The methods described with reference to FIGS. 5 to 8 provide instructions to the UE 170 that cannot split CSI reporting. If the UE 170 has indicated that it supports the capability of split CSI reporting, the primary cell moves to 408. The indication that the UE 170 supports split CSI reporting indicates that the primary cell may allocate two different PUCCH groups for reporting of measurements corresponding to a specific cell, such as a secondary cell.

At 408, the primary cell may allocate a first PUCCH group based on the CSI measurement of the CSI resources associated with the secondary cell satisfying a first condition for the UE 170 to report the CSI measurement during activation of the secondary cell. At 410, the primary cell may allocate a second PUCCH group based on the CSI measurement of the CSI resources associated with the secondary cell satisfying a second condition for the UE 170 to report the CSI measurement during activation of the secondary cell. At 412, the primary cell may send the identities of the first PUCCH group and the second PUCCH group to the UE 170. This informs the UE 170 of the allocation and where to send its CSI measurement.

As can be seen from this operation, method 400A focuses on a specific CSI resource or reference signal. Method 400A describes determining a specific PUCCH group to be used for reporting measurements for a specific CSI resource. This is different from method 300A described with reference to FIG. 3A. Method 300A focuses on a scenario where there are two different CSI resources or two different CSI reference signals corresponding to a secondary cell. In method 300A, UE 170 may use a first PUCCH group to report a first measurement corresponding to a first reference signal. UE 170 may use a second PUCCH group to report a second measurement corresponding to a second reference signal.

In contrast, method 400A focuses on allocating multiple PUCCH groups for specific CSI resources. For example, this can be a single resource or reference signal corresponding to a secondary cell. Method 400A describes determining which PUCCH group to use based on one or more conditions. For example, the CSI measurement used for reporting can be CQI. In some aspects, the condition can be a specific value of CQI. For example, the first condition can be that the CQI value is out of range (OOR), and the second condition can be that the CQI value is valid or not OOR value. In some aspects, the first condition and the second condition can be considered as a single condition, determination and/or decision. For CQI reporting, the primary cell can allocate PUCCH groups according to the value of CQI. For example, when UE 170 is reporting OOR CQI, UE 170 can use the first PUCCH group to report CQI reporting. In some aspects, the first PUCCH group can correspond to the primary cell. When UE 170 is reporting valid CQI or not OOR CQI, UE 170 can use the second PUCCH group to report CQI reporting. In some aspects, the second PUCCH group may correspond to the secondary cell. In this case, when the UE 170 is still in the process of completing activation of the secondary cell and reporting the OOR value, the UE 170 may use the first PUCCH group. If the UE 170 has completed activation of the secondary cell, the UE 170 may report the effective CQI via the second PUCCH group. In this way, the reporting of the measurement results may be based on one or more conditions.

For example, UE 170 may report CQI measurements using a first PUCCH group corresponding to PCell 130 or using a second PUCCH group corresponding to SCell 140. When UE 170 is reporting an OOR CQI, UE 170 may report CQI using a first PUCCH group corresponding to PCell 130. When UE 170 is reporting a valid CQI or a non-OOR CQI, UE 170 may report CQI using a second PUCCH group corresponding to SCell 140.

In some aspects, the UE 170 may also report the L1-RSRP measurement based on a condition. For example, when the L1-RSRP measurement corresponds to the lowest L1-RSRP index, the UE 170 may use the first PUCCH group to report the L1-RSRP measurement. When the L1-RSRP measurement is an index value other than the lowest index, the UE 170 may use the second PUCCH group.

In some aspects, UE 170 may report multiple CSI measurements. One or more CSI measurements may be assigned to a specific PUCCH group, while other CSI measurements may be assigned based on conditions. For example, a primary cell may use a first PUCCH group corresponding to the primary cell to assign L1-RSRP reporting for a secondary cell. Although UE 170 may be assigned to use the first PUCCH group to report L1-RSRP, UE 170 may apply conditions for CQI as previously discussed. For example, when CQI is OOR, UE 170 may use the first PUCCH group. When CQI is valid or not OOR, UE 170 may use the second PUCCH group to report CQi. In this way, UE 170 may perform both assigned CSI reporting and conditional CSI reporting.

When reporting using a first PUCCH group and a second PUCCH group, in some aspects, the UE 170 can report the results in a time division multiplexing (TDM) configuration. For example, the UE 170 can use a first measurement time period to report CSI measurements using a first PUCCH group. The UE 170 then uses a second measurement time period to report CSI measurements using a second PUCCH group.

FIG. 4B illustrates an example method for a system (e.g., UE) to report CSI measurements corresponding to SCell using two PUCCH groups based on one or more conditions according to some aspects of the present disclosure. For convenience and not limitation, FIG. 4B may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 400B may represent an operation of a UE (e.g., UE 170 of FIG. 1A or FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 400B may also be performed by the system 200 of FIG. 2 and/or the computer system 900 of FIG. 9. However, method 400B is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that all operations may not be required, and these operations may not be performed in the same order as shown in FIG. 4B.

The method 400B may correspond to UE operations that supplement the operations described in the method 400A with reference to Figure 4A. The description of the UE operations provided for the method 400A also applies to the method 400B.

At 414 and 416, UE 170 may determine whether UE 170 supports separate CSI reporting. If UE 170 does not support this capability, then at 418, UE 170 may interact with the primary cell as described with reference to Figures 5 to 8. If UE 170 determines that it supports separate CSI reporting, then at 420, UE 170 sends a message to the primary cell indicating that the UE supports separate CSI reporting.

At 422, UE 170 may receive allocation of a first PUCCH group and a second PUCCH group. At 424, based on CSI measurements of CSI resources associated with the secondary cell during activation of the secondary cell satisfying a first condition, UE 170 may report CSI measurements using the first PUCCH group. At 426, based on CSI measurements of CSI resources associated with the secondary cell during activation of the secondary cell satisfying a second condition, UE 170 may report CSI measurements using the second PUCCH group.

As previously explained, the first PUCCH group may correspond to a primary cell. The CSI measurement may correspond to a CQI value. The first condition may be when the CQI is an OOR value. When the CQI is an OOR value, the UE 170 may report the OOR result using the first PUCCH group corresponding to the primary cell. In some aspects, the second PUCCH group may correspond to a secondary cell. The second condition may be when the CQI is a valid or non-OOR value. When the CQI is a valid or non-OOR value, the UE 170 may report the OOR result using the second PUCCH group corresponding to the secondary cell. Although CQI may be an example CSI measurement, the process may also be applied to other CSI measurements as previously discussed.

FIG. 5 illustrates an example method for a system (e.g., a base station) to allocate a PCell PUCCH group for a UE to report CSI measurements when the UE is not capable of CSI reporting separation according to some aspects of the present disclosure. For convenience and not limitation, FIG. 5 may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 500 may represent an operation of a base station (e.g., PCell 130 or PSCell 150 of FIG. 1A or base station 130 or 150 of FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 500 may also be performed by system 200 of FIG. 2 and/or computer system 900 of FIG. 9. However, method 500 is not limited to the specific aspects depicted in those figures, and other systems may be used to perform methods as will be understood by those skilled in the art. It should be understood that not all operations may be required and that the operations may not be performed in the same order as shown in FIG. 5 .

At 502, the primary cell may receive a message from UE 170 indicating that UE 170 does not support reporting of separate channel state information (CSI). This may correspond to 306 or 406 described with reference to FIGs. 3A and 4A, respectively.

At 504, the primary cell may allocate a PUCCH group corresponding to the primary cell for UE 170 to report CSI measurements of CSI resources associated with the secondary cell during activation of the secondary cell. In this case, the primary cell may instruct UE 170 to use the PUCCH group corresponding to the primary cell to report its CSI measurements associated with the secondary cell. For example, the network or the primary cell may impose restrictions on the reporting performed by UE 170. UE 170 may use the PUCCH group corresponding to the primary cell to report L1-RSRP measurements and CQI measurements. This may occur because UE 170 does not support separate CSI reporting using different PUCCH groups during activation of the secondary cell. In some aspects, after the secondary cell has been activated, the network may reconfigure UE 170 via the primary cell and/or the secondary cell to perform CSI reporting using the PUCCH corresponding to the primary cell and/or the PUCCH corresponding to the secondary cell.

At 506, the primary cell may send an identification of the PUCCH group to the UE 170. This informs the UE 170 of the allocation and identifies the PUCCH group to be used for CSI reporting during activation of the secondary cell.

FIG. 6 illustrates an example method for a system (e.g., a base station) to allocate two PUCCH groups for UEs to report CSI measurements based on the type of CSI measurement when the UE is not capable of report separation according to some aspects of the present disclosure. For convenience and not limitation, FIG. 6 may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 600 may represent an operation of a base station (e.g., PCell 130 or PSCell 150 of FIG. 1A or base station 130 or 150 of FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 600 may also be performed by system 200 of FIG. 2 and/or computer system 900 of FIG. 9. However, method 600 is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that not all operations may be required and that the operations may not be performed in the same order as shown in FIG. 6 .

At 602, the primary cell may receive a message from UE 170 indicating that UE 170 does not support reporting of separate channel state information (CSI). This may correspond to 306 or 406 described with reference to FIGs. 3A and 4A, respectively.

At 604, the primary cell may allocate a first PUCCH group corresponding to the primary cell for the UE 170 to report L1-RSRP measurements associated with the secondary cell during activation of the secondary cell. At 606, the primary cell may allocate a second PUCCH group associated with the secondary cell for the UE 170 to report CQI measurements associated with the secondary cell. With this allocation, the primary cell or the network may establish a reconfiguration for the UE 170 after it has received the L1-RSRP measurement. The UE 170 may send the L1-RSRP measurement using the first PUCCH group corresponding to the primary cell. After the primary cell receives the L1-RSRP measurement, the primary cell reconfigures the UE 170 to provide the CQI measurement using the PUCCH corresponding to the secondary cell.

At 608, the primary cell may send an identifier of the first PUCCH group to UE 170. In some aspects, the primary cell may notify UE 170 to use the first PUCCH group to perform L1-RSRP reporting. The network or primary cell may then wait for UE 170 to perform L1-RSRP reporting and measurements. In some aspects, the primary cell may wait for UE 170 to report a non-lowest index value for L1-RSRP, which indicates that UE 170 has completed the measurement. As previously described, this may indicate that UE 170 has determined the best beam for communicating with the secondary cell. This may be the beam from the secondary cell that has the strongest received signal at UE 170. UE 170 may report the L1-RSRP measurement to the primary cell. In some aspects, UE 170 may report the L1-RSRP measurement before the secondary cell activation process is completed.

At 610, the primary cell may receive a report from the UE 170 that the L1-RSRP measurement is a non-lowest index value. For example, the UE 170 may report one or more L1-RSRP measurements associated with a transmit beam from a secondary cell. The UE 170, the primary cell, and/or the network may use the L1-RSRP measurements to determine a specific transmit beam for the secondary cell to communicate with the UE 170. The non-lowest index value may be an indication from the UE 170 of a beam having the strongest received signal among a plurality of reference signals transmitted by the secondary cell.

At 612, in response to receiving the report of the L1-RSRP measurement, the primary cell may send an identification of the second PUCCH group to the UE 170. This may reconfigure the UE 170 to report CQI using the PUCCH group corresponding to the secondary cell. In some aspects, the UE 170 may periodically report OOR CQI values until the UE 170 has completed an activation procedure for the secondary group. Then, when activation has been completed, the UE 170 may report a valid or non-OOR CQI value to the secondary cell using the second PUCCH group.

FIG. 7 illustrates an example method for a system (e.g., a base station) to allocate two PUCCH groups based on the type of CSI measurement and preconfigure the UE to report CSI measurements when the UE is not capable of report separation according to some aspects of the present disclosure. For convenience and not limitation, FIG. 7 may be described with respect to the elements of FIG. 1A to FIG. 1B. Method 700 may represent an operation of a base station (e.g., PCell 130 or PSCell 150 of FIG. 1A or base station 130 or 150 of FIG. 1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 700 may also be performed by system 200 of FIG. 2 and/or computer system 900 of FIG. 9. However, method 700 is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that not all operations may be required and that the operations may not be performed in the same order as shown in FIG. 7 .

At 702, the primary cell may receive a message from UE 170 indicating that UE 170 does not support reporting of separate channel state information (CSI). This may correspond to 306 or 406 described with reference to FIGs. 3A and 4A, respectively.

At 704, the primary cell may allocate a first PUCCH group corresponding to the primary cell for the UE 170 to report L1-RSRP measurements associated with the secondary cell during activation of the secondary cell. At 706, the primary cell may allocate a second PUCCH group corresponding to the secondary cell for the UE 170 to report CQI measurements associated with the secondary cell. At 708, the primary cell may send an identifier of the first PUCCH group and the second PUCCH group to the UE 170, wherein the UE is configured to use the second PUCCH group to send the CQI of the secondary cell after the UE has reported a non-lowest index value for the L1-RSRP measurement using the first PUCCH group. In some aspects, the primary cell may send a message instructing the UE 170 to perform this reporting. In some aspects, the UE 170 may implement a switching rule and may automatically switch from the first PUCCH to the second PUCCH group. For example, the switching rule may be executed by the UE 170 without an indication from the primary cell.

With this allocation, the primary cell or network can pre-configure the UE 170 to use the first PUCCH group for L1-RSRP reporting and the second PUCCH group for CQI reporting. In this way, after the UE 170 has reported a non-lowest index value for the L1-RSRP measurement, the UE 170 can automatically switch to using the second PUCCH group corresponding to the secondary cell being activated to report CQI. In some aspects, the UE 170 can apply a TDM configuration when communicating using the first PUCCH group and the second PUCCH group. For example, the UE 170 can use the first PUCCH group to report the L1-RSRP measurement during a first time period. Then, after the UE 170 has completed and reported the L1-RSRP measurement, the UE 170 can automatically reconfigure its CSI report to report the CQI measurement using the second PUCCH group. As previously explained, the second PUCCH group can correspond to the secondary cell. In some aspects, the primary cell messaging and instructions may be considered as pre-configuration of the UE 170 to change PUCCH group usage via TDM.

FIG8 illustrates an example method for a system (e.g., a base station) to allocate two PUCCH groups for UE to report CSI measurements based on the value of CSI measurements when the UE is not capable of report separation according to some aspects of the present disclosure. For convenience and not limitation, FIG8 may be described with respect to the elements of FIG1A to FIG1B. Method 800 may represent an operation of a base station (e.g., PCell 130 or PSCell 150 of FIG1A or base station 130 or 150 of FIG1B) to implement CSI reporting for PUCCH activation of SCell 140. As previously explained, the term "primary cell" may refer to PCell 130 or PSCell 150. The term "secondary cell" may refer to SCell 140. Method 800 may also be performed by system 200 of FIG2 and/or computer system 900 of FIG9. However, method 800 is not limited to the specific aspects depicted in those figures, and other systems may be used to perform the method, as will be understood by those skilled in the art. It should be understood that not all operations may be required and that the operations may not be performed in the same order as shown in FIG. 8 .

At 802, the primary cell may receive a message from UE 170 indicating that UE 170 does not support reporting of separate channel state information (CSI). This may correspond to 306 or 406 described with reference to FIGs. 3A and 4A, respectively.

At 804, the primary cell may allocate a first PUCCH group corresponding to the primary cell for the UE 170 to report L1-RSRP measurements associated with the secondary cell during activation of the secondary cell. At 806, the primary cell may allocate a second PUCCH group corresponding to the secondary cell for the UE 170 to report CQI measurements associated with the secondary cell. At 808, the primary cell may send an identifier of the first PUCCH group and the second PUCCH group to the UE 170. After the UE 170 has reported a non-lowest index value for the L1-RSRP measurement on the first PUCCH group, the UE 170 may use the first PUCCH group to report the CQI measurement associated with the secondary cell if the CQI measurement is an OOR value, and use the second PUCCH group to send the CQI measurement if the CQI measurement is not an OOR value. In some aspects, the primary cell may send a message instructing the UE 170 to perform this reporting. In some aspects, the UE 170 may implement a switching rule and may automatically switch from the first PUCCH to the second PUCCH group. For example, the switching rules may be executed by the UE 170 without an instruction from the primary cell.

Similar to method 700, the process may pre-configure CSI reporting for UE 170. As explained with reference to method 700, UE 170 may use a TDM configuration to separate reporting of L1-RSRP measurements and CQI measurements. UE 170 may also divide CQI reporting into two time periods. This may depend on the condition or specific value of the CQI. In the case where UE 170 determines that the CQI measurement is OOR, UE 170 may use the first PUCCH group corresponding to the primary cell to report the value. In the case where UE 170 reports a valid CQI or a non-OOR CQI, UE 170 may use the second PUCCH group corresponding to the secondary cell to report the value. This may be an automatic switch at UE 170 based on a pre-configuration provided by the primary cell.

Various aspects may be implemented, for example, using one or more computer systems (such as the computer system 900 shown in FIG. 9 ). The computer system 900 may be any well-known computer capable of performing the functions described herein, such as the devices 130, 140, 150, 170 of FIG. 1A and FIG. 1B and/or 200 of FIG. 2 . The computer system 900 includes one or more processors (also referred to as central processing units or CPUs), such as a processor 904. The processor 904 is connected to a communication infrastructure 906 (e.g., a bus). The computer system 900 also includes a user input/output device 903, such as a monitor, a keyboard, a pointing device, etc., that communicates with the communication infrastructure 906 via a user input/output interface 902. The computer system 900 also includes a main memory or primary storage 908, such as a random access memory (RAM). The main memory 908 may include one or more levels of cache. The main memory 908 has control logic (e.g., computer software) and/or data stored therein.

The computer system 900 may also include one or more secondary storage devices or memories 910. The secondary storage 910 may include, for example, a hard disk drive 912 and/or a removable storage device or drive 914. The removable storage drive 914 may be a floppy disk drive, a tape drive, an optical drive, an optical storage device, a tape backup device, and/or any other storage device/drive.

The removable storage drive 914 may interact with a removable storage unit 918. The removable storage unit 918 includes a computer usable or readable storage device having computer software (control logic) and/or data stored thereon. The removable storage unit 918 may be a floppy disk, a magnetic tape, an optical disk, a DVD, an optical storage disk, and/or any other computer data storage device. The removable storage drive 914 reads from and/or writes to the removable storage unit 918 in a well-known manner.

According to some aspects, secondary memory 910 may include other devices, means, or other methods for allowing computer programs and/or other instructions and/or data to be accessed by computer system 900. Such devices, means, or other methods may include, for example, a removable storage unit 922 and an interface 920. Examples of removable storage unit 922 and interface 920 may include a program cartridge and cartridge interface (such as those found in video game devices), a removable memory chip (such as an EPROM or PROM) and associated socket, a memory stick and USB port, a memory card and associated memory card slot, and/or any other removable storage unit and associated interface.

The computer system 900 may also include a communication or network interface 924. The communication interface 924 enables the computer system 900 to communicate and interact with any combination of remote devices, remote networks, remote entities, etc. (individually and collectively referenced by reference numeral 928). For example, the communication interface 924 may allow the computer system 900 to communicate with a remote device 928 via a communication path 926, which may be wired and/or wireless and may include any combination of a LAN, a WAN, the Internet, etc. Control logic components and/or data may be sent to and from the computer system 900 via the communication path 926.

The operations in the foregoing aspects can be implemented in various configurations and architectures. Thus, some or all of the operations in the foregoing aspects can be performed in hardware, software, or in both hardware and software. In some aspects, a tangible, non-transient device or article includes a tangible, non-transient computer-usable or readable medium on which a control logic component (software) is stored, also referred to herein as a computer program product or program storage device. This includes, but is not limited to, a computer system 900, a main memory 908, an auxiliary memory 910, and removable storage units 918 and 922, as well as tangible articles embodying any combination of the foregoing. When executed by one or more data processing devices (such as computer system 900), such control logic components cause such data processing devices to operate as described herein.

Based on the teachings contained in this disclosure, it will be apparent to those skilled in the relevant art(s) how to make and use aspects of the present disclosure using data processing devices, computer systems, and/or computer architectures other than that shown in Figure 9. In particular, the various aspects may operate with software, hardware, and/or operating system implementations other than those described herein.

It should be understood that the Detailed Description section, rather than the Summary and Abstract sections, is intended to be used to interpret the claims. The Summary and Abstract sections may set forth one or more but not all exemplary aspects of the present disclosure as contemplated by the inventors, and thus are not intended to limit the present disclosure or the appended claims in any way.

Although the present disclosure has been described herein with reference to exemplary aspects of exemplary fields and applications, it should be understood that the present disclosure is not limited thereto. Other aspects and modifications are possible and are within the scope and essence of the present disclosure. For example, and without limiting the generality of this paragraph, the various aspects are not limited to the software, hardware, firmware, and/or entities illustrated in the figures and/or described herein. In addition, the various aspects (whether or not explicitly described herein) have significant practicality for fields and applications beyond the examples described herein.

Various aspects have been described herein by means of functional building blocks that illustrate the specific implementation of specific functions and their relationships. For ease of description, the boundaries of these functional building blocks have been arbitrarily defined herein. As long as the specified functions and relationships (or their equivalents) are properly performed, alternative boundaries may be defined. In addition, alternative aspects may use an order different from the order described herein to perform functional blocks, steps, operations, methods, etc.

References herein to "one aspect," "aspect," "one example," "example," or similar phrases indicate that the described aspects may include a particular feature, structure, or characteristic, but each aspect may not necessarily include the particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same aspect. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with one aspect, it is within the knowledge of a person skilled in the relevant art to incorporate such feature, structure, or characteristic into other aspects, whether or not explicitly mentioned or described herein.

The breadth and scope of the present disclosure should not be limited by any of the above-described exemplary aspects, but should be defined only in accordance with the following claims and their equivalents.

The disclosure anticipates that entities responsible for the collection, analysis, disclosure, transmission, storage or other purposes of such personal information data will comply with sound privacy policies and/or privacy measures. Specifically, such entities should implement and adhere to the use of privacy policies and measures that are recognized as meeting or exceeding the industry or government requirements for maintaining the privacy and security of personal information data. Such policies should be easy for users to access and should be updated as changes in the collection and/or use of data occur. Personal information from users should be collected for legal and reasonable entity purposes and should not be shared or sold outside these legal purposes. In addition, such collection/sharing should only be done after receiving the user's informed consent. In addition, such entities should consider taking any necessary steps to protect and safeguard access to such personal information data, and ensure that other entities with access to personal information data comply with the privacy policies and procedures of other entities. In addition, such entities can subject themselves to third-party assessments to prove that they comply with widely accepted privacy policies and practices. In addition, policies and practices should be adapted to specific types of personal information data collected and/or accessed, and to applicable laws and standards including considerations of special jurisdictions. For example, in the United States, the collection or acquisition of certain health data may be governed by federal and/or state laws, such as the Health Insurance Portability and Accountability Act (HIPAA); while health data in other countries may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy measures should be advocated for different types of personal data in each country.

Claims (20)

1. A primary cell base station, the primary cell base station comprising:

A transceiver configured to enable wireless communication with a User Equipment (UE), including wireless communication received via a Physical Uplink Control Channel (PUCCH), and

A processor communicatively coupled to the transceiver and configured to:

receiving a message from the UE indicating whether the UE supports reporting of separate Channel State Information (CSI);

indicating, based on the message, that the UE supports the reporting of separate CSI:

Allocating a first PUCCH group for the UE at the secondary small cell based on CSI measurements of CSI resources associated with the secondary cell base station satisfying a first condition

Reporting the CSI measurements during activation of a cell base station;

Allocating a second PUCCH group for the UE to report the CSI measurements during activation of the secondary cell base station based on the CSI measurements of the CSI resources associated with the secondary cell base station satisfying a second condition, and

And sending the identification of the first PUCCH group and the second PUCCH group to the UE.

2. The primary cell base station of claim 1, wherein the first PUCCH group corresponds to the primary cell base station, and wherein the second PUCCH group corresponds to the secondary cell base station.

3. The primary cell base station of claim 1, wherein the CSI measurement is a Channel Quality Indicator (CQI) and wherein the first condition corresponds to an out-of-range CQI value, or wherein the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement and wherein the first condition corresponds to a lowest index of L1-RSRP.

4. The primary cell base station of claim 1, wherein the CSI measurement is a Channel Quality Indicator (CQI) and wherein the second condition corresponds to a valid or non-out of range CQI value, or wherein the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement and wherein the second condition corresponds to a non-lowest index of L1-RSRP.

5. The primary cell base station of claim 1, wherein based on the report indicating that the UE does not support separate CSI, the processor is configured to:

allocating a PUCCH group corresponding to the primary cell base station for the UE to report CSI measurement of CSI resources associated with the secondary cell base station during activation of the secondary cell, and

And sending the identification of the PUCCH group to the UE.

6. The primary cell base station of claim 1, wherein based on the report indicating that the UE does not support separate CSI, the processor is configured to:

Allocating a first PUCCH group corresponding to the primary cell base station for reporting layer 1 reference signal received power (L1-RSRP) measurements associated with the secondary cell base station by the UE during activation of the secondary cell;

Allocating a second PUCCH group corresponding to the secondary cell base station for reporting Channel Quality Indicator (CQI) measurements associated with the secondary cell base station by the UE;

Transmitting an identification of the first PUCCH group to the UE;

receiving a report of the L1-RSRP measurement being a non-lowest index value from the UE, and

In response to receiving the report of the L1-RSRP measurement, an identification of the second PUCCH group is sent to the UE.

7. The primary cell base station of claim 1, wherein based on the report indicating that the UE does not support separate CSI, the processor is configured to:

Allocating a first PUCCH group corresponding to the primary cell base station for reporting layer 1 reference signal received power (L1-RSRP) measurements associated with the secondary cell base station by the UE during activation of the secondary cell;

Allocating a second PUCCH group corresponding to the secondary cell base station for reporting Channel Quality Indicator (CQI) measurements associated with the secondary cell base station by the UE;

And transmitting, to the UE, an identification of the first PUCCH group and the second PUCCH group, wherein the UE is configured to transmit the CQI measurement using the second PUCCH group after the UE has reported a non-lowest index value for the L1-RSRP measurement using the first PUCCH group.

8. The primary cell base station of claim 1, wherein based on the report indicating that the UE does not support separate CSI, the processor is configured to:

Allocating a first PUCCH group corresponding to the primary cell base station for reporting layer 1 reference signal received power (L1-RSRP) measurements associated with the secondary cell base station by the UE during activation of the secondary cell;

Allocating a second PUCCH group corresponding to the secondary cell base station for reporting Channel Quality Indicator (CQI) measurements associated with the secondary cell base station by the UE;

The method includes transmitting, to the UE, an identification of the first PUCCH group and the second PUCCH group, wherein the UE is configured to report the CQI measurement using the first PUCCH group if the CQI measurement is an out-of-range value after the UE has reported a non-lowest index value for the L1-RSRP measurement on the first PUCCH group, and to transmit the CQI measurement using the second PUCCH group if the CQI measurement is not an out-of-range value.

9. A method, the method comprising:

Receiving, at a primary cell, a message from a User Equipment (UE) indicating whether the UE supports reporting of detached Channel State Information (CSI);

indicating, based on the message, that the UE supports the reporting of separate CSI:

Allocating, by the primary cell, a first PUCCH group for reporting the CSI measurement by the UE during activation of the secondary cell based on the CSI measurement of the CSI resource associated with the secondary cell satisfying a first condition;

Allocating, by the primary cell, a second PUCCH group for the UE to report the CSI measurements during activation of the secondary cell based on the CSI measurements of the CSI resources associated with the secondary cell satisfying a second condition, and

And transmitting, by the primary cell, an identification of the first PUCCH group and the second PUCCH group to the UE.

10. The method of claim 9, wherein the first PUCCH group corresponds to the primary cell, and wherein the second PUCCH group corresponds to the secondary cell.

11. The method of claim 9, wherein the CSI measurement is a Channel Quality Indicator (CQI), and wherein the first condition corresponds to an out-of-range CQI value, or

Wherein the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement, and wherein the first condition corresponds to a lowest index of the L1-RSRP.

12. The method of claim 9, wherein the CSI measurement is a Channel Quality Indicator (CQI), and wherein the second condition corresponds to a valid or not out-of-range CQI value, or wherein the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement, and wherein the second condition corresponds to a non-lowest index of L1-RSRP.

13. The method of claim 9, wherein based on the report indicating that the UE does not support separate CSI, the method further comprises:

Allocating, by the primary cell, a PUCCH group corresponding to the primary cell for the UE to report CSI measurements of CSI resources associated with the secondary cell during activation of the secondary cell, and

And sending the identification of the PUCCH group to the UE by the main cell.

14. The method of claim 9, wherein based on the report indicating that the UE does not support separate CSI, the method further comprises:

Allocating, by the primary cell, a first PUCCH group corresponding to the primary cell for reporting, by the UE, layer 1 reference signal received power (L1-RSRP) measurements associated with the secondary cell during activation of the secondary cell;

allocating, by the primary cell, a second PUCCH group corresponding to the secondary cell for reporting Channel Quality Indicator (CQI) measurements associated with the secondary cell by the UE;

transmitting, by the primary cell, an identity of the first PUCCH group to the UE;

receiving, by the primary cell, a report from the UE that the L1-RSRP measurement is a non-lowest index value, and

In response to receiving the report of the L1-RSRP measurement, an identity of the second PUCCH group is transmitted by the primary cell to the UE.

15. The method of claim 9, wherein based on the report indicating that the UE does not support separate CSI, the method further comprises:

Allocating, by the primary cell, a first PUCCH group corresponding to the primary cell for reporting, by the UE, layer 1 reference signal received power (L1-RSRP) measurements associated with the secondary cell during activation of the secondary cell;

allocating, by the primary cell, a second PUCCH group corresponding to the secondary cell for reporting Channel Quality Indicator (CQI) measurements associated with the secondary cell by the UE;

Transmitting, by the primary cell, an identification of the first PUCCH group and the second PUCCH group to the UE, wherein the UE is configured to transmit the CQI measurement using the second PUCCH group after the UE has reported a non-lowest index value for the L1-RSRP measurement using the first PUCCH group.

16. The method of claim 9, wherein based on the report indicating that the UE does not support separate CSI, the method further comprises:

Allocating, by the primary cell, a first PUCCH group associated with the primary cell for reporting, by the UE, layer 1 reference signal received power (L1-RSRP) measurements corresponding to the secondary cell during activation of the secondary cell;

allocating, by the primary cell, a second PUCCH group corresponding to the secondary cell for reporting Channel Quality Indicator (CQI) measurements associated with the secondary cell by the UE;

Transmitting, by the primary cell, an identity of the first PUCCH group and the second PUCCH group to the UE, wherein the UE is configured to report the CQI measurement using the first PUCCH group if the CQI measurement is an out-of-range value after the UE has reported a non-lowest index value for the L1-RSRP measurement on the first PUCCH group, and to transmit the CQI measurement using the second PUCCH group if the CQI measurement is not an out-of-range value.

17. A User Equipment (UE), the UE comprising:

A transceiver configured to wirelessly communicate with a primary cell and a secondary cell, and

A processor communicatively coupled to the transceiver and configured to:

determining whether the UE supports reporting of separate Channel State Information (CSI);

based on the reporting that the UE supports separate CSI:

Transmitting a message to the primary cell indicating that the UE supports the reporting of separate CSI;

receiving an allocation of a first Physical Uplink Control Channel (PUCCH) group and a second PUCCH group;

reporting the CSI measurement of a CSI resource associated with the secondary cell using the first PUCCH group based on the CSI measurement satisfying a first condition during activation of the secondary cell, and

The CSI measurement is reported using the second PUCCH group based on the CSI measurement of the CSI resource associated with the secondary cell satisfying a second condition during activation of the secondary cell.

18. The UE of claim 17, wherein the first PUCCH group corresponds to the primary cell, and wherein the second PUCCH group corresponds to the secondary cell.

19. The UE of claim 17, wherein the CSI measurement is a Channel Quality Indicator (CQI), and wherein the first condition corresponds to an out-of-range CQI value, or

Wherein the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement, and wherein the first condition corresponds to a lowest index of the L1-RSRP.

20. The UE of claim 17, wherein the CSI measurement is a Channel Quality Indicator (CQI), and wherein the second condition corresponds to a valid or not out-of-range CQI value, or wherein the CSI measurement is a layer 1 reference signal received power (L1-RSRP) measurement, and wherein the second condition corresponds to a non-lowest index of L1-RSRP.