Techniques for switching frequencies of uplink transmissions for multiple frequency bands

Abstract

Methods, systems, and devices for wireless communication are described. Techniques described herein relate to frequency switching bands for uplink transmission of multiple bands. A first network node (e.g., user equipment) sends an indication of the ability to switch an uplink transmit chain for communications on component carriers over a number of frequency bands. The number of frequency bands is greater than two, and the capability indicates simultaneous uplink transmission over less than the number of frequency bands. The first network node receives control information to switch from a first set of frequency bands to communication over a second set of frequency bands. The first network node switches the uplink transmit chain, wherein a subcarrier spacing (SCS) of a slot at which the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a sleep bandwidth portion.

Description

Background Art

[0001] The following relates to wireless communications regarding frequency switching for uplink transmissions over multiple frequency bands.

[0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE). Summary of the Invention

[0003] The described technology relates to improved methods, systems, devices, and apparatuses for supporting techniques for switching to different frequencies for uplink transmission over multiple frequency bands. When a user equipment (UE) is instructed to switch frequency bands for an uplink transmit chain, and at least one uplink frequency band is a component carrier that is deactivated or within a dormant bandwidth part (BWP) (if the number of supported frequency bands is greater than two, but this may occur if the UE has only two transmit chains), the UE may determine the subcarrier spacing (SCS) of the timeslot in which the frequency switching occurs based on a rule that defines whether a candidate subcarrier spacing (SCS) is associated with a deactivated component carrier or a component carrier in a dormant BWP. The UE may use a formula that defines the SCS of the timeslot as equal to the maximum SCS of each possible uplink carrier. In one option, the rule excludes carriers that are deactivated or in a dormant BWP from the possible or candidate uplink carriers whose SCSs are to be considered. In another option, the rule includes deactivated carriers or carriers in a dormant bandwidth part from the possible or candidate uplink carriers whose SCSs are to be considered. The SCS for deactivated carriers or carriers associated with dormant BWPs may be indicated by the network in a radio resource control (RRC) message associated with each BWP.

[0004] A method is described. The method may include a memory, at least one processor coupled to the memory, wherein the at least one processor is configured to: send an indication of a capability of a first network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receive control information indicative of a switch from communication on a first set of frequency bands to communication on a second set of frequency bands in accordance with the capability; and switch the uplink transmit chains of the first network node in accordance with the control information, wherein an SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0005] An apparatus is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: transmit an indication of a capability of a first network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receive control information instructing a switch from communication on a first set of frequency bands to communication on a second set of frequency bands based on the capability; and switch the uplink transmit chains of the first network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0006] Another apparatus is described. The apparatus may include means for a memory, means for at least one processor coupled to the memory, wherein the at least one processor is configured to: send an indication of a capability of a first network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of uplink transmission simultaneously on fewer than the number of frequency bands; receive control information indicative of a switch from communication on a first set of frequency bands to communication on a second set of frequency bands different from the first set of frequency bands in accordance with the capability; and switch the uplink transmit chain of the first network node in accordance with the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0007] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by a processor coupled to a memory, wherein at least one processor is configured to: send an indication of a capability of a first network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receive control information instructing a switch from communication on a first set of frequency bands to communication on a second set of frequency bands different from the first set of frequency bands in accordance with the capability; and switch the uplink transmit chains of the first network node in accordance with the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0008] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining an SCS for a time slot according to a rule, wherein the rule defines that the SCS for the time slot may be based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​may be associated with an activated component carrier or a component carrier that may be in a non-dormant BWP.

[0009] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining an SCS for a time slot according to a rule, wherein the rule defines that the SCS for the time slot may be based on a maximum parameter set of candidate SCS values, and wherein the candidate SCS values ​​may be associated with a combination of activated component carriers or component carriers that may be in a non-dormant BWP and deactivated component carriers or component carriers that may be in a dormant BWP.

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a candidate SCS value associated with a deactivated component carrier or a component carrier that may be in a dormant BWP may be based on a first active uplink BWP identifier associated with the respective one of the deactivated component carrier or the dormant BWP.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the number of frequency bands may be three or four.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the capability indicates that the first network node may be able to simultaneously uplink transmit on a maximum of two frequency bands using two uplink transmit chains.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands may be a single frequency band over which the first network node communicates using the first uplink transmit chain and the second uplink transmit chain, and the second set of frequency bands includes the first frequency band over which the first network node communicates using the first uplink transmit chain and the second frequency band over which the first network node communicates using the second uplink transmit chain.

[0014] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands includes a first frequency band over which the first network node communicates using a first uplink transmit chain and a second frequency band over which the first network node communicates using a second uplink transmit chain, and the second set of frequency bands can be a single frequency band over which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands may be a first single frequency band over which the first network node communicates using the first uplink transmit chain and the second uplink transmit chain, and the second set of frequency bands may be a second single frequency band over which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands includes a first frequency band over which the first network node communicates using the first uplink transmit chain and a second frequency band over which the first network node communicates using the second uplink transmit chain, and the second set of frequency bands includes a third frequency band over which the first network node communicates using the first uplink transmit chain and a fourth frequency band over which the first network node communicates using the second uplink transmit chain.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the control information indicates whether the component carrier can be activated or deactivated.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the control information indicates whether the component carrier can be in a dormant BWP or a non-dormant BWP.

[0019] A method is described. The method may include a memory, at least one processor coupled to the memory, wherein the at least one processor is configured to: receive, from a second network node, an indication of a capability of the second network node to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send, to the second network node, control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands in accordance with the capability; switch the uplink transmit chains of the second network node in accordance with the control information, wherein an SCS for a time slot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refrain from sending second control information indicating a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the time slot.

[0020] An apparatus is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive from a second network node an indication of the second network node's ability to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send to the second network node control information indicative of a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability; switch the uplink transmit chain of the second network node based on the control information, wherein an SCS for a time slot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refrain from sending second control information indicative of a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the time slot.

[0021] Another apparatus is described. The apparatus may include means for a memory, means for at least one processor coupled to the memory, wherein the at least one processor is configured to: receive, from a second network node, an indication of a capability of the second network node to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send, to the second network node, control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set of frequency bands being different from the first set of frequency bands; switch the uplink transmit chains of the second network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refrain from sending second control information indicating a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the timeslot.

[0022] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by a processor coupled to a memory, at least one processor being coupled to the memory, wherein the at least one processor is configured to: receive from a second network node an indication of the second network node's capability to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send to the second network node control information indicative of a switch from communications on a first set of frequency bands to communications on a second set of frequency bands different from the first set of frequency bands in accordance with the capability; switch the uplink transmit chains of the second network node in accordance with the control information, wherein an SCS for a time slot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refrain from sending second control information indicative of a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the time slot.

[0023] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the at least one processor may be further configured to determine the SCS of the time slot according to a rule defining that the SCS of the time slot may be based on a maximum parameter set of candidate SCS values, and all candidate SCS values ​​may be associated with an activated component carrier or a component carrier that may be in a non-dormant BWP.

[0024] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the at least one processor may be further configured to determine the SCS of the time slot according to a rule, wherein the rule defines that the SCS of the time slot may be based on a maximum parameter set of candidate SCS values, and the candidate SCS values ​​may be associated with a combination of activated component carriers or component carriers that may be in a non-dormant BWP and deactivated component carriers or component carriers that may be in a dormant BWP.

[0025] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a candidate SCS value associated with a deactivated component carrier or a component carrier that may be in a dormant BWP may be based on a first active uplink BWP identifier associated with the respective one of the deactivated component carrier or the dormant BWP.

[0026] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the number of frequency bands may be three or four.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the capability indicates that the second network node may be able to simultaneously uplink transmit on a maximum of two frequency bands using two uplink transmit chains.

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands may be a single frequency band over which the second network node communicates using the first uplink transmit chain and the second uplink transmit chain, and the second set of frequency bands includes the first frequency band over which the second network node communicates using the first uplink transmit chain and the second frequency band over which the second network node communicates using the second uplink transmit chain.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands includes a first frequency band over which the second network node communicates using the first uplink transmit chain and a second frequency band over which the second network node communicates using the second uplink transmit chain, and the second set of frequency bands can be a single frequency band over which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands may be a first single frequency band over which the second network node communicates using the first uplink transmit chain and the second uplink transmit chain, and the second set of frequency bands may be a second single frequency band over which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first set of frequency bands includes a first frequency band over which the second network node communicates using the first uplink transmit chain and a second frequency band over which the second network node communicates using the second uplink transmit chain, and the second set of frequency bands includes a third frequency band over which the second network node communicates using the first uplink transmit chain and a fourth frequency band over which the second network node communicates using the second uplink transmit chain.

[0032] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the control information indicates whether the component carrier can be activated or deactivated.

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the control information indicates that the component carrier can be in a dormant BWP or in a non-dormant BWP.

[0034] A method is described. The method may include: sending an indication of a capability of a first network node to switch uplink transmit chains used for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receiving control information indicative of a switch from communication on a first set of frequency bands to communication on a second set of frequency bands in accordance with the capability; and switching the uplink transmit chains of the first network node in accordance with the control information, wherein an SCS of a timeslot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0035] An apparatus is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: send an indication of a capability of a first network node to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receive control information indicative of a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set of frequency bands being different from the first set of frequency bands; and switch the uplink transmit chains of the first network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0036] Another apparatus is described. The apparatus may include: means for sending an indication of a capability of a first network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of uplink transmission simultaneously on fewer than the number of frequency bands; means for receiving control information indicative of a switch from communication on a first set of frequency bands to communication on a second set of frequency bands in accordance with the capability, the second set of frequency bands being different from the first set of frequency bands; and means for switching the uplink transmit chains of the first network node in accordance with the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0037] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by a processor to: send an indication of a capability of a first network node to switch uplink transmit chains used for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receive control information instructing a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set of frequency bands being different from the first set of frequency bands; and switch the uplink transmit chains of the first network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0038] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining an SCS for a time slot according to a rule, wherein the rule defines that the SCS for the time slot may be based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​may be associated with an activated component carrier or a component carrier that may be in a non-dormant BWP.

[0039] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining an SCS for a time slot according to a rule, wherein the rule defines that the SCS for the time slot may be based on a maximum parameter set of candidate SCS values, and wherein the candidate SCS values ​​may be associated with a combination of activated component carriers or component carriers that may be in a non-dormant BWP and deactivated component carriers or component carriers that may be in a dormant BWP.

[0040] A method is described. The method may include: receiving from a second network node an indication of a capability of the second network node to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of concurrent uplink transmission on fewer than the number of frequency bands; sending to the second network node control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands in accordance with the capability; switching the uplink transmit chains of the second network node in accordance with the control information, wherein an SCS for a time slot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refraining from sending second control information indicating a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the time slot.

[0041] An apparatus is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive from a second network node an indication of the second network node's ability to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send to the second network node control information indicative of a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set of frequency bands being different from the first set of frequency bands; switch the uplink transmit chain of the second network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refrain from sending second control information indicative of a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the timeslot.

[0042] Another apparatus is described. The apparatus may include: means for receiving, from a second network node, an indication of a capability of the second network node to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; means for sending, to the second network node, control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands in accordance with the capability, the second set of frequency bands being different from the first set of frequency bands; means for switching the uplink transmit chains of the second network node in accordance with the control information, wherein an SCS for a timeslot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and means for refraining from sending second control information indicating a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the timeslot.

[0043] A non-transitory computer-readable medium storing code is described. The code may include instructions executable by a processor to: receive from a second network node an indication of the second network node's capability to switch uplink transmit chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send to the second network node control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability; switch the uplink transmit chain of the second network node based on the control information, wherein an SCS for a time slot in which at least a portion of the switch occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP; and refrain from sending second control information indicating a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or a third set of frequency bands during the time slot.

[0044] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining an SCS for a time slot according to a rule, wherein the rule defines that the SCS for the time slot may be based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​may be associated with an activated component carrier or a component carrier that may be in a non-dormant BWP.

[0045] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for determining an SCS for a time slot according to a rule, wherein the rule defines that the SCS for the time slot may be based on a maximum parameter set of candidate SCS values, and wherein the candidate SCS values ​​may be associated with a combination of activated component carriers or component carriers that may be in a non-dormant BWP and deactivated component carriers or component carriers that may be in a dormant BWP. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 An example of a wireless communication system supporting techniques for frequency switching for uplink transmissions for multiple frequency bands according to one or more aspects of the present disclosure is illustrated.

[0047] Figure 2 An example of a wireless communication system supporting techniques for frequency switching for uplink transmissions for multiple frequency bands according to one or more aspects of the present disclosure is illustrated.

[0048] Figure 3 An example of uplink transmission switching is illustrated, which supports a technique of frequency switching for uplink transmission for multiple frequency bands according to one or more aspects of the present disclosure.

[0049] Figure 4 An example of a process flow for techniques supporting frequency switching for uplink transmissions for multiple frequency bands in accordance with one or more aspects of the present disclosure is illustrated.

[0050] Figure 5 and Figure 6 A block diagram illustrating a device supporting techniques for frequency switching for uplink transmissions for a set of multiple frequency bands according to one or more aspects of the present disclosure is provided.

[0051] Figure 7 A block diagram illustrating a communications manager that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure is illustrated.

[0052] Figure 8 A diagram illustrating a system of devices including techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure is provided.

[0053] Figure 9 and Figure 10 A block diagram illustrating a device supporting techniques for frequency switching for uplink transmissions for a set of multiple frequency bands according to one or more aspects of the present disclosure is provided.

[0054] Figure 11 A block diagram illustrating a communications manager that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure is illustrated.

[0055] Figure 12 A diagram illustrating a system of devices including techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure is provided.

[0056] Figures 13 and 14 Illustrated is a flow chart showing a method of supporting techniques for frequency switching for uplink transmissions for multiple frequency bands in accordance with one or more aspects of the present disclosure. DETAILED DESCRIPTION

[0057] Some wireless communication systems may include multiple frequency bands for uplink transmission, which is used to send data from a user equipment (UE) to a network entity. The UE may communicate simultaneously on two uplink transmission chains in the same frequency band or in different frequency bands. In some cases, more than two frequency bands may be used for uplink communication. For example, three or four frequency bands may be configured for uplink communication. However, the UE may be limited to communicating on two frequency bands at a time (using at most two uplink transmission chains). Therefore, at least some frequency bands may not be used by the UE at any given time.

[0058] In some cases, the frequency band used for the uplink transmit chain may be switched. There is currently a rule that defines that when an uplink transmit chain switch occurs due to a network command, the UE will not expect to receive a request to perform more than one switch in a single timeslot. However, determining the duration of the timeslot in which the switch occurs can be problematic. Typically, the timeslot duration is based on the subcarrier spacing (SCS) of the frequency band used during that timeslot. However, when a switch occurs during a timeslot, it may not be clear which SCS to apply (e.g., the SCS of the frequency band before the switch or the SCS of the frequency band after the switch) in order to determine the timeslot duration during which only one switch will occur. The SCS of a "switching" timeslot can be determined based on the SCSs of the different frequency bands involved in the switch.

[0059] The problem addressed by the techniques discussed herein is whether to consider the SCS of deactivated carriers or carriers within a dormant bandwidth part (BWP) when determining the SCS of a handover timeslot. For example, when more than two frequency bands are configured for uplink communication, some of these frequency bands may be deactivated carriers or carriers within a dormant BWP.

[0060] Therefore, when a UE is instructed to switch frequency bands for an uplink transmit chain, and at least one uplink frequency band is deactivated or dormant (as may occur if the number of supported frequency bands is greater than two, where the UE only has two transmit chains), the UE can determine the SCS of the timeslot in which the frequency switch occurs based on a rule and a formula. The formula is that the SCS of the timeslot is equal to the maximum SCS of each possible uplink carrier. In one option, the rule is that the candidate uplink carriers to be considered for SCS do not include carriers that are deactivated or in a dormant BWP. In another option, the rule is that the candidate uplink carriers to be considered for SCS include deactivated carriers or carriers in a dormant BWP. The SCS for deactivated carriers or carriers associated with a dormant BWP can be provided by the network in a radio resource control (RRC) message associated with each BWP.

[0061] Various aspects of the present disclosure are first described in the context of a wireless communication system. Various aspects of the present disclosure are further illustrated by, and described with reference to, apparatus diagrams, system diagrams, and flow charts relating to techniques for frequency switching for uplink transmissions in multiple frequency bands.

[0062] Figure 1An example of a wireless communication system 100 that supports techniques for frequency switching for uplink transmissions in multiple frequency bands in accordance with one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some aspects, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies (including future systems and radio technologies not explicitly mentioned herein).

[0063] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100 and may include devices in different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other nomenclature. In some aspects, the network entities 105 and the UEs 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entities 105 may support a coverage area 110 (e.g., a geographic coverage area) within which the UEs 115 and the network entities 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area within which the network entities 105 and the UEs 115 may support signal communication according to one or more radio access technologies (RATs).

[0064] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile or both stationary and mobile at different times. The UEs 115 may be devices that take different forms or have different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. The UEs 115 described herein may be capable of supporting communication with various types of devices, such as Figure 1 105 or other UEs 115 or network entities 105 as shown.

[0065] As described herein, a node (which may be referred to as a node, network node, network entity, or wireless node) may include, may be, or may be included in (e.g., as a component of) a base station (e.g., any base station described herein), a UE (e.g., any UE described herein), a network controller, a device, an apparatus, a computing system, an integrated access and backhaul (IAB) node, a distributed unit (DU), a central unit (CU), a remote / radio unit (RU) (which may also be referred to as a remote radio unit (RRU)), and / or another processing entity configured to perform any of the techniques described herein. For example, the network node may be a UE. For another example, the network node may be a base station or a network entity. For another example, a first network node may be configured to communicate with a second network node or a third network node. In one aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a UE. In another aspect of this example, the first network node may be a UE, the second network node may be a base station, and the third network node may be a base station. In yet other aspects of this example, the first network node, the second network node, and the third network node may be different relative to these examples. Similarly, references to a UE, a base station, an apparatus, a device, a computing system, etc. may include disclosure of the UE, base station, apparatus, device, computing system, etc. as network nodes. For example, a disclosure that a UE is configured to receive information from a base station also discloses that the first network node is configured to receive information from a second network node. Consistent with the present disclosure, once a specific example is expanded upon in accordance with the present disclosure (e.g., a disclosure that a UE is configured to receive information from a base station also discloses that the first network node is configured to receive information from a second network node), the broader example of the narrower example may be interpreted inversely, but in a broad, open-ended manner. In the above example in which the UE is configured to receive information from a base station and the first network node is also disclosed to be configured to receive information from a second network node, the first network node may refer to a first UE, a first base station, a first device, a first equipment, a first computing system, a first set of one or more components, or a first processing entity, etc. configured to receive information; and the second network node may refer to a second UE, a second base station, a second device, a second equipment, a second computing system, a second set of one or more components, or a second processing entity, etc.

[0066] As described herein, different terms may be used in various aspects to describe the communication of information (e.g., any information, signal, etc.). Disclosure of one communication term includes disclosure of the other communication terms. For example, a first network node may be described as being configured to send information to a second network node. In this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the first network node is configured to provide, transmit, output, communicate, or send information to the second network node. Similarly, in this example and consistent with the present disclosure, disclosure that the first network node is configured to send information to the second network node includes disclosure that the second network node is configured to receive, obtain, or decode information provided, transmitted, output, communicated, or sent by the first network node.

[0067] In some aspects, the network entities 105 can communicate with the core network 130, with each other, or both. For example, the network entities 105 can communicate with the core network 130 via one or more backhaul communication links 120 (e.g., in accordance with an S1, N2, N3, or other interface protocol). In some aspects, the network entities 105 can communicate with each other via the backhaul communication links 120 (e.g., in accordance with an X2, Xn, or other interface protocol), either directly (e.g., between the network entities 105) or indirectly (e.g., via the core network 130). In some aspects, the network entities 105 can communicate with each other via midhaul communication links 162 (e.g., in accordance with a midhaul interface protocol) or fronthaul communication links 168 (e.g., in accordance with a fronthaul interface protocol), or any combination thereof. Backhaul communication link 120, midhaul communication link 162, or fronthaul communication link 168 may be one or more wired links (e.g., electrical links, fiber optic links), one or more wireless links (e.g., radio links, wireless optical links), etc., or various combinations thereof, or include one or more wired links (e.g., electrical links, fiber optic links), one or more wireless links (e.g., radio links, wireless optical links), etc., or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155.

[0068] One or more of the network entities 105 described herein may include a base station 140 or may be referred to as a base station 140 (e.g., a transceiver base station, a radio base station, an NR base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB, or a gigabit NodeB (any of which may be referred to as a gNB), a 5G NB, a next-generation eNB (ng-eNB), a Home NodeB, a Home eNodeB, or other suitable terminology). In some aspects, the network entity 105 (e.g., a base station 140) may be implemented in a converged (e.g., monolithic, stand-alone) base station architecture that may be configured to utilize a protocol stack that is physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as the base station 140).

[0069] In some aspects, the network entity 105 can be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that can be configured to utilize protocol stacks that are physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 can include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 can also be referred to as a radio head, an intelligent radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of the network entity 105 in the disaggregated RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some aspects, one or more network entities 105 of the disaggregated RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0070] The functional split between the CU 160, DU 165, and RU 170 is flexible and can support different functions depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at the CU 160, DU 165, or RU 170. For example, a functional split of the protocol stack can be employed between the CU 160 and DU 165 such that the CU 160 can support one or more layers of the protocol stack and the DU 165 can support one or more different layers of the protocol stack. In some aspects, the CU 160 can host higher protocol layer (e.g., Layer 3 (L3), Layer 2 (L2)) functionality and signaling (e.g., RRC, Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as Layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DU 165 and the RU 170, such that the DU 165 may support one or more layers of the protocol stack and the RU 170 may support one or more different layers of the protocol stack. The DU 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between the CU 160 and the DU 165 or between the DU 165 and the RU 170 may be within the protocol layer (e.g., some functions of the protocol layer may be performed by one of the CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by a different one of the CU 160, DU 165, or RU 170). The CU 160 may be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. The CU 160 may be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and the DU 165 may be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., an open fronthaul (FH) interface). In some aspects, midhaul communication link 162 or fronthaul communication link 168 may be implemented according to interfaces (eg, channels) between layers of a protocol stack supported by respective network entities 105 communicating via such communication links.

[0071] In some wireless communication systems (e.g., wireless communication system 100), the infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to the core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as a donor entity or IAB donor. One or more DUs 165 or one or more RUs 170 may be partially controlled by one or more CUs 160 associated with a donor network entity 105 (e.g., a donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by the DU 165 of the coupled IAB donor. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some aspects, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.

[0072] For example, an access network (AN) or RAN may include an access node (e.g., an IAB donor), communications between the IAB node 104 and one or more UEs 115. The IAB donor may facilitate connectivity between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor may refer to a RAN node that has a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170), in which case the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and the IAB node 104 may communicate via the F1 interface according to a protocol that defines signaling messages (e.g., the F1 AP protocol). Additionally or alternatively, CU 160 may communicate with the core network via an interface (which may be an example of part of a backhaul link) and may communicate with other CUs 160 (e.g., CUs 160 associated with alternative IAB donors) via an Xn-C interface (which may be an example of part of a backhaul link).

[0073] An IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UE 115, wireless self-backhaul capabilities, etc.). The DU 165 may act as a distributed scheduling node toward child nodes associated with the IAB node 104, and the IAB-MT may act as a scheduled node toward a parent node associated with the IAB node 104. That is, an IAB donor may be referred to as a parent node that communicates with one or more child nodes (e.g., the IAB donor may relay UE transmissions through one or more other IAB nodes 104). Additionally or alternatively, depending on the relay chain or configuration of the AN, the IAB node 104 may also be referred to as a parent node or child node of other IAB nodes 104. Thus, the IAB-MT entity of the IAB node 104 may provide a Uu interface for the child IAB node 104 to receive signaling from the parent IAB node 104, and a DU interface (e.g., DU 165) may provide a Uu interface for the parent IAB node 104 to signal to the child IAB node 104 or the UE 115.

[0074] For example, IAB node 104 may be referred to as a parent node supporting communications for child IAB nodes, or as a child IAB node associated with an IAB donor, or both. The IAB donor may include a CU 160 having a wired or wireless connection to the core network 130 (e.g., backhaul communication link 120) and may serve as a parent node for IAB node 104. For example, the DU 165 of the IAB donor may relay transmissions to UE 115 via IAB node 104, or may directly signal the transmissions to UE 115, or both. The CU 160 of the IAB donor may signal the establishment of a communication link to IAB node 104 via the F1 interface, and IAB node 104 may schedule transmissions (e.g., transmissions relayed from the IAB donor to UE 115) via the DU 165. That is, data may be relayed to and from IAB node 104 via signaling via the NR Uu interface of the MT to IAB node 104. Communications with the IAB node 104 may be scheduled by the DU 165 of the IAB donor, and communications with the IAB node 104 may be scheduled by the DU 165 of the IAB node 104 .

[0075] Where the techniques described herein are applied to the context of a disaggregated RAN architecture, one or more components of the disaggregated RAN architecture may be configured to support the techniques described herein for frequency switching for uplink transmissions in multiple frequency bands. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally or alternatively be performed by one or more components of the disaggregated RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).

[0076] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some aspects, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.

[0077] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1 shown.

[0078] The UE 115 and the network entity 105 may wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a collection of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier used for the communication link 125 may include a portion of an RF spectrum band (e.g., a BWP) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operation, user data, or other signaling. The wireless communication system 100 may support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between those devices and any portion (e.g., entity, sub-entity) of the network entity 105. For example, the terms "send," "receive," or "communicate" when referring to the network entity 105 may refer to any portion of the network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).

[0079] In some aspects, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified according to a channel raster used for discovery by a UE 115. A carrier may operate in a standalone mode, in which case initial acquisition and connection by a UE 115 may occur via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.

[0080] The communication link 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the UE 115 to the network entity 105, or both, as well as other transmission configurations. A carrier may carry downlink communications or uplink communications (e.g., in FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0081] A carrier may be associated with a particular bandwidth of RF spectrum, and in some aspects, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers for a particular radio access technology (e.g., 1.4 megahertz (MHz), 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). Devices of the wireless communication system 100 (e.g., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communication using a particular carrier bandwidth, or may be capable of being configured to support communication using one of the set of carrier bandwidths. In some aspects, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports concurrent communication using carriers associated with multiple carrier bandwidths. In some aspects, each served UE 115 may be configured to operate using a portion (e.g., a sub-band, a BWP) or all of the carrier bandwidth.

[0082] The signal waveform transmitted via the carrier may include multiple subcarriers (e.g., using a multicarrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may refer to the resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and subcarrier spacing may be inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), such that a relatively high number of resource elements (e.g., in the transmission duration) and a relatively high order modulation scheme may correspond to a relatively high communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.

[0083] One or more parameter sets for a carrier may be supported, and the parameter set may include SCS (Δf) and cyclic prefix. A carrier may be divided into one or more BWPs with the same or different parameter sets. In some aspects, a UE 115 may be configured with multiple BWPs. In some aspects, a single BWP for a carrier may be active at a given time, and communications for the UE 115 may be limited to the one or more active BWPs.

[0084] The time interval for the network entity 105 or the UE 115 may be expressed as a multiple of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported SCS, and N f The supported discrete Fourier transform (DFT) size may be indicated. Time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., in the range of 0 to 1023).

[0085] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some aspects, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a certain number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the SCS. Each time slot may include a certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended to the front of each symbol period). In some wireless communication systems 100, the time slot may be further divided into a plurality of mini-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the SCS or operating band.

[0086] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a Transmit Time Interval (TTI). In some aspects, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0087] Physical channels may be multiplexed according to various techniques for communicating using a carrier. For example, physical control channels and physical data channels may be multiplexed using one or more of time division multiplexing (TDM), frequency division multiplexing (FDM), or hybrid TDM-FDM techniques for signaling via a downlink carrier. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a set of symbol periods and may extend across the system bandwidth of a carrier or a subset of that bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of UEs 115 may monitor or search the control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0088] In some aspects, the network entities 105 (e.g., base stations 140, RUs 170) can be mobile and, therefore, provide communication coverage for mobile coverage areas 110. In some aspects, different coverage areas 110 associated with different technologies can overlap, but can be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies can be supported by different network entities 105. The wireless communication system 100 can include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.

[0089] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). The UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private or group communication and may be supported by one or more services such as push-to-talk, video, or data. Support for ultra-reliable, low-latency functionality may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, and ultra-reliable low-latency may be used interchangeably herein.

[0090] In some aspects, a UE 115 may be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some aspects, one or more UEs 115 in a group performing D2D communication may be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), which may support aspects of such D2D communication as configured (e.g., scheduled) by the network entity 105. In some aspects, one or more UEs 115 in such a group may be outside of the coverage area 110 of the network entity 105 or may otherwise be unable or not configured to receive transmissions from the network entity 105. In some aspects, a group of UEs 115 communicating via D2D communication may support a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some aspects, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.

[0091] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to external networks. The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for UEs 115 served by network entities 105 (e.g., base stations 140) associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP services 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0092] The wireless communication system 100 can operate using one or more frequency bands that can range from 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about one decimeter to one meter in length. UHF waves can be blocked or redirected by buildings and environmental features (which can be referred to as clusters), but these waves can penetrate structures sufficiently for a macro cell to provide service to a UE 115 located indoors. Communication using UHF waves can be associated with smaller antennas and a shorter range (e.g., less than 100 kilometers) than communication using the smaller frequencies and longer wavelengths of the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0093] The wireless communication system 100 may also operate in the ultra-high frequency (SHF) region (also known as the centimeter band) using spectrum in the range of 3 GHz to 30 GHz or in the extremely high frequency (EHF) region (e.g., 30 GHz to 300 GHz) (also known as the millimeter band). In some aspects, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the network entity 105 (e.g., base station 140, RU 170), and the EHF antennas of the corresponding devices may be smaller and more closely spaced than UHF antennas. In some aspects, such technology may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be employed across transmissions using one or more different frequency regions, and the frequency band usage specified across these frequency regions may vary by country or regulatory agency.

[0094] The wireless communication system 100 can utilize both licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 can employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology using unlicensed bands, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating using unlicensed RF spectrum bands, devices such as the network entity 105 and the UE 115 can employ carrier sensing for conflict detection and avoidance. In some aspects, operations using the unlicensed bands can be based on a carrier aggregation configuration (e.g., LAA) in conjunction with component carriers operating using licensed bands. Operations using the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0095] A network entity 105 (e.g., a base station 140, a RU 170) or a UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input, multiple-output (MIMO) communications, or beamforming. The antennas of the network entity 105 or UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some aspects, the antennas or antenna arrays associated with the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having a set of multiple rows and columns of antenna ports that the network entity 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panels may support RF beamforming for signals transmitted via the antenna ports.

[0096] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a network entity 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating in a particular direction relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements can include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. The adjustments associated with each of these antenna elements can be defined by a set of beamforming weights associated with a particular direction (e.g., relative to the antenna array of the transmitting device or the receiving device or relative to some other direction).

[0097] When UE 115 is instructed to switch frequency bands for uplink transmit chains, and at least one uplink frequency band is deactivated or dormant (which may occur if the number of supported frequency bands is greater than two, but UE 115 only has two transmit chains), UE 115 may determine the SCS of the timeslot in which the frequency switch occurs based on a rule and a formula. The formula is that the SCS of the timeslot is equal to the maximum SCS of each possible uplink carrier. In one option, the rule is that the candidate uplink carriers to be considered for SCS do not include carriers that are deactivated or in a dormant BWP. In another option, the rule is that the candidate uplink carriers to be considered for SCS include deactivated carriers or carriers in a dormant BWP. In this second example, the SCS for deactivated carriers or carriers associated with a dormant BWP is provided by the network in an RRC message associated with each BWP.

[0098] Figure 2 An example of a wireless communication system 200 that supports frequency switching for uplink transmissions in multiple frequency bands according to one or more aspects of the present disclosure is illustrated. The wireless communication system 200 may implement aspects of the wireless communication system 100 or may be implemented by aspects of the wireless communication system 100. For example, the wireless communication system 200 includes a UE 115-a that may be used for Figure 1 The wireless communication system 200 also includes a network entity 105-a, which may be an example of a UE 115 as described above. Figure 1 An example of a network entity 105 is described.

[0099] The network entity 105-a may communicate with the UE 115-a using a communication link 125-a, which may be an example of a communication link 125 as described herein. The communication link 125-a may be an example of an NR or LTE link between the UE 115-a and the network entity 105-a. The communication link 125-a may include a bidirectional link that enables both uplink and downlink communication. For example, the UE 115-a may use the communication link 125-a to send an uplink signal 205 (e.g., an uplink transmission), such as an uplink control signal or an uplink data signal, to the network entity 105-a, and the network entity 105-a may use the communication link 125-a to send a downlink signal 210 (e.g., a downlink transmission), such as a downlink control signal or a downlink data signal, to the UE 115-a.

[0100] In some examples, UE 115-a may communicate simultaneously on two uplink transmit chains in the same frequency band or in different frequency bands (e.g., in Release 16 or Release 17 of the Third Generation Partnership Project (3GPP) of wireless communication standards). In such examples, uplink transmit switching for the two frequency bands may be supported. UE 115-a may enable simultaneous transmission of up to two uplink transmit chains on one or both frequency bands. For example, for switched uplink (switchedUL) or supplemental uplink (SUL) operation, UE 115-a may transmit on one of the two frequency bands. For dual uplink (dualUL) operation, UE 115-a may transmit simultaneously on both frequency bands, but still have at most two uplink transmit chains.

[0101] For both switched uplink operation and dual uplink operation, UE 115-a may switch the state of the uplink transmit chain via uplink transmit chain frequency switching (e.g., dynamically, based on a trigger, periodically, etc.). In switched uplink operation, UE 115-a may transmit the uplink transmit chain one frequency band at a time and may switch frequency bands by switching the frequency bands used for two (if two) transmit chains. In dual uplink transmit operation, UE 115-a may transmit both uplink transmit chains via the same frequency band or via different frequency bands. In dual uplink transmit operation, UE 115-a may switch between transmitting both uplink transmit chains via the same frequency band and via different frequency bands based on the uplink transmit chain frequency switching. The uplink transmit chain switching may occur before or after the switching gap.

[0102] In some cases, for uplink transmit handovers, UE 115-a may report the length of time to perform uplink transmit handovers as part of UE capability signaling. For uplink transmit handovers, the maximum frequency may be defined by a rule. For example, the rule may include that UE 115-a may not expect to receive a request to perform more than one handover in a single time slot, μ UL =max(μ UL,1 ,μ UL,2 ), where μ UL,1 The SCS corresponds to the active uplink bandwidth of one uplink carrier before the switching gap, and μ UL,2 The SCS corresponds to the active uplink BWP of the other uplink carrier after the switching gap.

[0103] In the mapping between antenna ports and uplink transmission conditions (e.g., situations) when two frequency bands are available, uplink transmission switching may include a first situation (e.g., state or situation) and a second situation associated with SUL operation and carrier aggregation first option (CA option 1). In the first situation, the number of uplink transmission chains may include 0T+2T corresponding to frequency band A and frequency band B, where T refers to an uplink transmission chain. In this way, 0T+2T means that there is no uplink transmission chain on frequency band A (e.g., 0T) and there are two transmission chains on frequency band B (e.g., 2T), and the uplink transmission chains may not be simultaneous on different frequency bands. The number of antenna ports used for the uplink transmission chains corresponding to frequency bands A and B includes 0P+2P (e.g., zero ports for frequency band A and two ports for frequency band B) or 0P+1P.

[0104] In a second case associated with SUL operation and the first carrier aggregation option, the number of uplink transmit chains may be 2T+0T corresponding to frequency band A and frequency band B, such that two uplink transmit chains are on frequency band A and no uplink transmit chain is on frequency band B. The number of antenna ports corresponding to frequency band A and frequency band B includes 2P+0P for frequency band A and frequency band B or 1P+0P for frequency band A and frequency band B.

[0105] In some aspects, simultaneous transmission of an uplink transmit chain may be supported by frequency bands A and B. For example, in a first case of a second carrier aggregation option (CA option 2), the number of uplink transmit chains may be 1T+1T corresponding to frequency bands A and B, such that one uplink transmit chain is supported on frequency band A and one simultaneous uplink transmit chain is supported on frequency band B. The number of antenna ports in this case is 1P+1P, 0P+1P, or 1P+0P, where each port may support at most one uplink transmit chain.

[0106] In the second case of carrier aggregation option 2, the number of uplink transmit chains may be 0T+2T corresponding to frequency band A and frequency band B, such that no uplink transmit chain is supported on frequency band A, and two uplink transmit chains are supported on frequency band B. The number of antenna ports in this case is 0P+2P or 0P+1P, where each port can support up to one or two active uplink transmissions. In the third case of carrier aggregation option 2, the number of uplink transmit chains may be 2T+0T corresponding to frequency band A and frequency band B, such that two uplink transmit chains are supported on frequency band A, and no uplink transmit chain is supported on frequency band B. The number of antenna ports in this case is 2P+0P or 1P+0P, where each port can support up to one or two active uplink transmit chains.

[0107] UE 115-a may indicate to network entity 105-a its ability to switch uplink transmission chains for communication on component carriers across a number of frequency bands. The number of frequency bands may be greater than two, and the capability may indicate that UE 115-a is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. In some aspects, the number of frequency bands may be greater than two, such as three or four, and some carriers of some frequency bands may be deactivated or included in dormant BWPs.

[0108] The network entity 105-a may send first control information 230 to the UE 115-a, and the first control information 230 may indicate a switch from communicating on the first set of frequency bands to communicating on the second set of frequency bands based on the capabilities indicated by the capabilities of the UE 115-a. The network entity 105-a may send second control information 235 to the UE 115-a, and the second control information 235 may indicate whether the component carrier is activated or deactivated, or whether the component carrier is in a dormant BWP or a non-dormant BWP. In some aspects, the first control information 230 and the second control information may be sent via the same control message (e.g., RRC). In some aspects, the first control information 230 and the second control information may be sent via different control messages.

[0109] In some aspects, the UE 115-a may perform uplink transmission switching for multiple frequency bands (such as for more than two frequency bands). The UE 115-a may enable simultaneous transmission of up to two transmit chains on one or two frequency bands in the multiple frequency bands (e.g., three or four frequency bands). For switched uplink (e.g., switched UL) operation and SUL operation, the UE 115-a may transmit on only one frequency band in the multiple frequency bands. For dual uplink (e.g., dual UL), the UE 115-a may simultaneously transmit on one or two frequency bands in the multiple frequency bands (e.g., three or four frequency bands) (but still at most two uplink transmit chains).

[0110] The SCS considered for the time slot duration for uplink transmission switching may be specified by a rule. For example, UE 115-a may not perform more than one uplink transmission switching within a reference time slot, based on μ in the case of three frequency bands. UL =max(μ UL,1 ,μ UL,2 ,μ UL,3 ), in the case of four frequency bands based on μ UL =max(μ UL,1 ,μ UL,2 ,μ UL,3 ,μ UL,4 ), where μ UL,1 、μ UL,2 、μUL,3 、μ UL,4 is the SCS of the active uplink BWP for each band in the band combination. In some aspects, multiple intra-band carriers may be in one band. For example, there may be two consecutive intra-band carriers in one band, μ UL ,1=max(μ UL,1-1 ,μ UL,1-2 ), where μ UL,1-1 and μ UL,1-2 is the SCS of the active uplink BWP of the carriers in this band.

[0111] The network entity 105-a may receive an indication from the UE 115-a of the UE 115-a's ability to switch uplink transmit chains for communication on component carriers across a number of frequency bands. The network entity 105-a may receive a first uplink transmit chain 245 and a second uplink transmit chain 250. For example, the first uplink transmit chain 245 and the second uplink transmit chain 250 may be on active uplink BWPs for carriers of the indicated frequency bands.

[0112] When a carrier is deactivated or dormant (e.g., in a secondary cell (SCell)), uplink transmission may not occur on the carrier. When uplink transmission switching occurs over two carriers (e.g., in Release 16 and Release 17), uplink transmission switching over the two carriers may not occur once the SCell is deactivated. However, when uplink transmission switching occurs over three or more frequency bands, uplink transmission switching may continue over active or non-dormant carriers in the three or more frequency bands even if one or more carriers are deactivated or dormant. When one or more carriers involved in uplink transmission switching for three or more frequency bands are deactivated or dormant, the reference SCS may be determined using the techniques and rules described herein.

[0113] Figure 3 An example of an uplink transmission switch 300 that supports frequency switching for uplink transmissions in multiple frequency bands according to one or more aspects of the present disclosure is illustrated. The uplink transmission switch 300 may correspond to a frequency switching for uplink transmissions in multiple frequency bands. Figure 2 In the first case of the discussed carrier aggregation option 1, the number of uplink transmission chains includes no uplink transmission on the first frequency band and two uplink transmissions on the second uplink transmission (e.g., 0T+2T), or vice versa. Uplink transmissions may not be performed simultaneously on different frequency bands. The uplink transmission chain cannot switch to a deactivated or dormant carrier, but if there is another carrier that is not deactivated or dormant, the transmission chain can switch to that carrier.

[0114] The first component carrier 305-a and the second component carrier 305-b indicate uplink transmissions in the time domain, where each component carrier 305 includes a set of time slots (e.g., time resources). Although the component carriers 305 are described with respect to a set of time slots, the component carriers 305 may apply to any time resource (e.g., symbols) and may include a fewer or greater number of time slots (as indicated by the ellipses). The component carriers 305 may include one or more of a switching gap time slot 310, an uplink transmission time slot 315, and a downlink transmission time slot 320.

[0115] The first component carrier 305-a may include transmissions on a first component carrier (CC#1), and the second component carrier 305-b may include transmissions on a second component carrier (CC#2), and the component carriers 305 may enable the UE 115 to dynamically switch between the two component carriers (e.g., frequency bands) for uplink transmissions. One or both uplink transmission chains may be capable of switching between the two component carriers. The uplink transmissions may occur during different time slots or in different component carriers, so that the power and antenna resources of the UE 115 can be efficiently utilized in each configuration transaction.

[0116] The first component carrier 305-a includes a switching gap timeslot 310 in a first time slot, while the second component carrier 305-b includes a downlink transmission timeslot 320 during the same time slot. The switching gap timeslot 310 may occur before transitioning or switching from the downlink transmission timeslot 320 to the uplink transmission timeslot 315. In some aspects, switching the uplink transmission from the first carrier in the first component carrier 305-a to the second carrier in the second component carrier 305-b may not occur before a predetermined offset. For example, the offset period may be one timeslot, three timeslots (as shown), five timeslots, etc. After the three-slot offset in the second component carrier 305-b, the switching may occur such that the fourth timeslot in the second component carrier 305-b is the switching gap timeslot 310, followed by the uplink transmission timeslot 315. Thus, two uplink transmission chains may be transmitted during the uplink transmission timeslot 315 on the second component carrier.

[0117] Uplink transmission switching may occur multiple times within component carrier 305. As shown, uplink transmission switching occurs based on an offset prior to switching (e.g., an offset of at least three time slots), and a switching gap time slot 310 may occur prior to switching from downlink transmission to uplink transmission on the component carrier. Switching two uplink transmission chains between a first component carrier and a second component carrier may increase uplink throughput (e.g., by approximately 66.7% when the bandwidths of the component carriers are the same). In some aspects, if time slot offsets are not applied, it may be expected that two uplink transmission time slots may occur during the same time slot, and UE 115 may be configured to support one transmission chain per component carrier or at most two transmission chains on one component carrier, thereby limiting uplink throughput.

[0118] Figure 4 An example of a process flow 400 for supporting frequency switching for uplink transmissions in multiple frequency bands according to one or more aspects of the present disclosure is illustrated. The process flow 400 may implement or be implemented by aspects of the wireless communication system 100 or the wireless communication system 200. For example, the process flow 400 may include a UE 115-b, which may be an example of a UE 115 as described herein. The process flow 400 may include a network entity 105-b, which may be an example of a network entity 105 as described herein. In the following description of the process flow 400, operations performed by the network entity 105-b and the UE 115-b may be performed in a different order or at a different time than the exemplary order shown. Some operations may also be omitted from the process flow 400, or other operations may be added to the process flow 400. Furthermore, while the operations in the process flow 400 are illustrated as being performed by the network entity 105-b and the UE 115-b, the examples herein should not be construed as limiting, as the features described may be associated with any number of different devices.

[0119] In some aspects, the network entity 105-b may transmit a configuration of the uplink frequency band, including an indication of any deactivated carriers or dormant BWPs, at 405. For example, the network entity 105-b may transmit information indicating which component carriers are activated or deactivated. In some aspects, the information may indicate whether the component carrier is in a dormant BWP or a non-dormant BWP.

[0120] At 410, UE 115-b may send an indication of an ability to switch uplink transmit chains for communication on component carriers across a number of frequency bands. The number of frequency bands may be greater than two, and the capability may indicate that UE 115-b is capable of simultaneous uplink transmission on fewer than the number of frequency bands. In some aspects, the number of frequency bands may be three or four frequency bands.

[0121] At 415, the network entity 105-b may send an indication to switch an uplink transmit chain on a first set of frequency bands to a second set of frequency bands, where the first set and the second set are different. In some aspects, the first set of frequency bands is a single frequency band over which the UE 115-b may communicate using the first uplink transmit chain and the second uplink transmit chain. The second set of frequency bands may include a first frequency band over which the UE 115-b communicates using the first uplink transmit chain and a second frequency band over which the UE 115-b communicates using the second uplink transmit chain.

[0122] In some aspects, the first frequency band set includes a first frequency band over which UE 115-b communicates using the first uplink transmit chain and a second frequency band over which UE 115-b communicates using the second uplink transmit chain, and the second frequency band set is a single frequency band over which UE 115-b communicates using both the first uplink transmit chain and the second uplink transmit chain. In some aspects, the first frequency band set is a first single frequency band over which UE 115-b may communicate using the first uplink transmit chain and the second uplink transmit chain, and the second frequency band set is a second single frequency band over which UE 115-b may communicate using both the first uplink transmit chain and the second uplink transmit chain.

[0123] In some aspects, the first set of frequency bands includes a first frequency band over which UE 115-b communicates using the first uplink transmit chain and a second frequency band over which UE 115-b communicates using the second uplink transmit chain, and the second set of frequency bands includes a third frequency band over which UE 115-b communicates using the first uplink transmit chain and a fourth frequency band over which UE 115-b communicates using the second uplink transmit chain. In some aspects, the capability from UE 115-b may indicate that UE 115-b is capable of concurrent uplink transmission on up to two frequency bands using both uplink transmit chains.

[0124] At 420, UE 115-b may switch the uplink transmit chain based on an indication from network entity 105-b. At 425, UE 115-b may transmit on the uplink transmit chain. When uplink carriers in a frequency band are deactivated, for example, for uplink transmissions on more than two frequency bands, determining the SCS for the time slot in which the switching occurs may be defined based on a rule. The SCS for the time slot in which at least a portion of the switching occurs may be based on a rule that defines whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. The SCS for the time slot may be determined based on the rule, wherein the rule defines that the SCS for the time slot is based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​are associated with activated component carriers or component carriers in non-dormant BWPs. UE 115-b may determine the SCS for the time slot based on the rule, wherein the rule defines that the SCS for the time slot is based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​are associated with activated component carriers or component carriers in non-dormant BWPs. In some aspects, an SCS value is associated with a combination of an activated component carrier or a component carrier in a non-dormant BWP and a deactivated component carrier or a component carrier in a dormant BWP. The SCS value that may be associated with a deactivated component carrier or a component carrier in a dormant BWP may be based on a first active uplink BWP identifier associated with the respective one of the deactivated component carrier or the dormant BWP.

[0125] In the first case when the uplink carrier in the frequency band is deactivated, the rule may define the UL The SCS for the uplink carrier in the frequency band is excluded from the determination of UL =max(μ UL,1 ,μ UL,2 ,μ UL,3 ,μ UL,4 ), where μ UL,1 、μ UL,2 、μ UL,3 、μ UL,4 is the SCS of the active uplink BWP of the activated carrier or cell in each frequency band in the band combination. In the second case when the uplink carrier in the frequency band is deactivated, the rule may define that the SCS for the uplink carrier in the frequency band is still included in μ UL In the case of four frequency bands, μ UL =max(μ UL,1 ,μ UL,2 ,μ UL,3 ,μ UL,4 ), where μ UL,1 、μ UL,2 、μ UL,3 、μ UL,4It is the SCS of the active UL BWP of the activated carrier or cell in each frequency band in the frequency band combination, and the SCS of the uplink BWP configured with the first active uplink BWP identifier (firstActiveUplinkBWP-Id) of the deactivated carrier or cell.

[0126] In the third case, when the active uplink BWP of the uplink carrier in the band is a dormant BWP, the rule may define UL The SCS for the UL carrier in the frequency band is excluded from the determination of UL =max(μ UL,1 ,μ UL,2 ,μ UL,3 ,μ UL,4 ), where μ UL,1 、μ UL,2 、μ UL,3 、μ UL,4 is an SCS whose active uplink BWP is not a dormant BWP in a frequency band in the band combination. In a fourth case, when the active uplink BWP of an uplink carrier in a frequency band is a dormant BWP, the rule may define that the SCS for the uplink carrier in the frequency band is still included in μ UL In the case of four frequency bands, μ UL =max(μ UL,1 ,μ UL,2 ,μ UL,3 ,μ UL,4 ), where μ UL,1 、μ UL,2 、μ UL,3 、μ UL,4 It is the SCS of the active uplink BWP of the carrier or cell where the active BWP is not the dormant BWP, and the SCS of the uplink BWP configured with firstActiveUplinkBWP-Id of the carrier or cell where the active BWP is the dormant BWP in the frequency band in the band combination.

[0127] Figure 5 A block diagram 500 illustrates a device 505 that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure. The device 505 may be an example of aspects of a UE 115 as described herein. The device 505 may include a receiver 510, a transmitter 515, and a communication manager 520. The device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0128] The receiver 510 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to techniques for frequency switching for uplink transmissions for a set of multiple frequency bands), user data, control information, or any combination thereof. The information may be communicated to other components of the device 505. The receiver 510 may utilize a single antenna or a set of multiple antennas.

[0129] The transmitter 515 may provide means for transmitting signals generated by other components of the device 505. For example, the transmitter 515 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to frequency switching techniques for uplink transmissions for a set of multiple frequency bands), user data, control information, or any combination thereof. In some aspects, the transmitter 515 may be co-located with the receiver 510 in a transceiver module. The transmitter 515 may utilize a single antenna or a set of multiple antennas.

[0130] The communication manager 520, the receiver 510, the transmitter 515, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein. For example, the communication manager 520, the receiver 510, the transmitter 515, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.

[0131] In some aspects, the communication manager 520, the receiver 510, the transmitter 515, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a digital signal processor (DSP), a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof configured as or otherwise supporting components for performing the functions described herein. In some aspects, the processor and memory coupled to the processor may be configured (e.g., by the processor executing instructions stored in the memory) to perform one or more of the functions described herein.

[0132] Additionally or alternatively, in some aspects, the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 520, receiver 510, transmitter 515, or various combinations or components thereof may be performed by a general-purpose processor (e.g., configured as or otherwise supporting means for performing the functions described herein), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.

[0133] In some aspects, the communication manager 520 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 510, the transmitter 515, or both. For example, the communication manager 520 can receive information from the receiver 510, transmit information to the transmitter 515, or be integrated with the receiver 510, the transmitter 515, or both to obtain information, output information, or perform various other operations as described herein.

[0134] According to examples disclosed herein, a communication manager 520 may support wireless communications at a first node. For example, the communication manager 520 may be configured to, or otherwise support, means for sending an indication of the first network node's capability to switch uplink transmit chains for communications on component carriers across a number of frequency bands, where the number of frequency bands is greater than two, and where the capability indicates that the first network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. The communication manager 520 may be configured to, or otherwise support, means for receiving control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, where the second set is different from the first set. The communication manager 520 may be configured to, or otherwise support, means for switching the uplink transmit chains of the first network node based on the control information, where the SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0135] By including or configuring the communication manager 520 according to examples as described herein, the device 505 (e.g., a processor controlling or otherwise coupled to the receiver 510, the transmitter 515, the communication manager 520, or a combination thereof) may support techniques for efficiently improving uplink throughput using uplink transmission switching when considering deactivated carriers or dormant BWPs.

[0136] Figure 6A block diagram 600 illustrates a device 605 that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a transmitter 615, and a communication manager 620. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0137] The receiver 610 may provide means for receiving information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to techniques for frequency switching for uplink transmissions for a set of multiple frequency bands), user data, control information, or any combination thereof. The information may be passed to other components of the device 605. The receiver 610 may utilize a single antenna or a set of multiple antennas.

[0138] The transmitter 615 may provide means for transmitting signals generated by other components of the device 605. For example, the transmitter 615 may transmit information such as packets associated with various information channels (e.g., control channels, data channels, information channels related to frequency switching techniques for uplink transmissions for a set of multiple frequency bands), user data, control information, or any combination thereof. In some aspects, the transmitter 615 may be co-located with the receiver 610 in a transceiver module. The transmitter 615 may utilize a single antenna or a set of multiple antennas.

[0139] Device 605 or its various components may be examples of components for performing various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein. For example, communications manager 620 may include a control information reception manager 625, an uplink transmission chain manager 630, or any combination thereof. Communications manager 620 may be an example of aspects of communications manager 520 as described herein. In some aspects, communications manager 620 or its various components may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise in conjunction with receiver 610, transmitter 615, or both. For example, communications manager 620 may receive information from receiver 610, transmit information to transmitter 615, or be integrated with receiver 610, transmitter 615, or both to obtain information, output information, or perform various other operations as described herein.

[0140] According to examples disclosed herein, a communication manager 620 may support wireless communications at a first node. A control information reception manager 625 may be configured to or otherwise support means for sending an indication of the first network node's capability to switch an uplink transmit chain for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. An uplink transmit chain manager 630 may be configured to or otherwise support means for receiving control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set being different from the first set. The uplink transmit chain manager 630 may be configured to or otherwise support means for switching an uplink transmit chain of the first network node based on the control information, wherein an SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0141] Figure 7 A block diagram 700 illustrates a communication manager 720 that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure. The communication manager 720 may be an example of aspects of the communication manager 520, the communication manager 620, or both, as described herein. The communication manager 720 or its various components may be examples of means for performing various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein. For example, the communication manager 720 may include a control information reception manager 725, an uplink transmission chain manager 730, an SCS manager 735, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses).

[0142] According to examples disclosed herein, a communication manager 720 may support wireless communications at a first node. A control information reception manager 725 may be configured to or otherwise support means for sending an indication of the first network node's capability to switch an uplink transmit chain for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. An uplink transmit chain manager 730 may be configured to or otherwise support means for receiving control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set being different from the first set. In some aspects, the uplink transmit chain manager 730 may be configured to or otherwise support means for switching an uplink transmit chain of the first network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0143] In some aspects, the SCS manager 735 may be configured to or otherwise support components for determining the SCS for a timeslot according to the rule, wherein the rule defines that the SCS for the timeslot is based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​are associated with activated component carriers or component carriers in non-dormant BWPs.

[0144] In some aspects, the SCS manager 735 may be configured to or otherwise support components for determining an SCS for a time slot based on a rule, wherein the rule defines that the SCS for the time slot is based on a maximum parameter set of candidate SCS values, and wherein the candidate SCS values ​​are associated with a combination of activated component carriers or component carriers in a non-dormant BWP and deactivated component carriers or component carriers in a dormant BWP.

[0145] In some aspects, the candidate SCS value associated with a deactivated component carrier or a component carrier in a dormant BWP is based on a first active uplink BWP identification associated with the respective one of the deactivated component carrier or the dormant BWP.

[0146] In some aspects, the number of frequency bands is three or four.

[0147] In some aspects, the capability indicates that the first network node is capable of uplink transmission simultaneously on up to two frequency bands using two uplink transmission chains.

[0148] In some aspects, the first set of frequency bands is a single frequency band over which the first network node communicates using the first uplink transmit chain and the second uplink transmit chain. In some aspects, the second set of frequency bands includes the first frequency band over which the first network node communicates using the first uplink transmit chain and the second frequency band over which the first network node communicates using the second uplink transmit chain.

[0149] In some aspects, the first set of frequency bands includes a first frequency band over which the first network node communicates using the first uplink transmit chain and a second frequency band over which the first network node communicates using the second uplink transmit chain. In some aspects, the second set of frequency bands is a single frequency band over which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0150] In some aspects, the first set of frequency bands is a first single frequency band over which the first network node communicates using the first uplink transmit chain and the second uplink transmit chain. In some aspects, the second set of frequency bands is a second single frequency band over which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0151] In some aspects, the first set of frequency bands includes a first frequency band over which the first network node communicates using the first uplink transmit chain and a second frequency band over which the first network node communicates using the second uplink transmit chain. In some aspects, the second set of frequency bands includes a third frequency band over which the first network node communicates using the first uplink transmit chain and a fourth frequency band over which the first network node communicates using the second uplink transmit chain.

[0152] In some aspects, the control information indicates whether the component carrier is activated or deactivated.

[0153] In some aspects, the control information indicates whether the component carrier is in a dormant BWP or a non-dormant BWP.

[0154] Figure 8A diagram illustrating a system 800 of a device 805 including techniques for frequency switching for uplink transmissions for a set of multiple frequency bands, in accordance with one or more aspects of the present disclosure, is shown. The device 805 may be an example of, or include components of, a device 505, a device 605, or a UE 115 as described herein. The device 805 may communicate (e.g., wirelessly) with one or more network entities 105, one or more UEs 115, or any combination thereof. The device 805 may include components for two-way voice and data communications, including components for sending and receiving communications, such as a communication manager 820, an input / output (I / O) controller 810, a transceiver 815, an antenna 825, a memory 830, code 835, and a processor 840. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., a bus 845).

[0155] I / O controller 810 can manage input and output signals for device 805. I / O controller 810 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 810 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 810 can utilize an operating system such as or another known operating system. Additionally or alternatively, I / O controller 810 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 810 may be implemented as part of a processor, such as processor 840. In some cases, a user may interact with device 805 via I / O controller 810 or via hardware components controlled by I / O controller 810.

[0156] In some cases, the device 805 may include a single antenna 825. However, in some other cases, the device 805 may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 815 may communicate bidirectionally via one or more antennas 825, a wired link, or a wireless link as described herein. For example, the transceiver 815 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 815 may also include a modem for modulating packets; providing the modulated packets to the one or more antennas 825 for transmission; and demodulating packets received from the one or more antennas 825. The transceiver 815, or the transceiver 815 and the one or more antennas 825, may be examples of the transmitter 515, the transmitter 615, the receiver 510, the receiver 610, or any combination thereof, or components thereof, as described herein.

[0157] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed by the processor 840, cause the device 805 to perform the various functions described herein. The code 835 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 835 may not be directly executable by the processor 840, but may (e.g., when compiled and executed) cause the computer to perform the functions described herein. In some cases, among other things, the memory 830 may also contain a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0158] The processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks of a technique for frequency switching for uplink transmissions for a set of multiple frequency bands). For example, the device 805 or a component of the device 805 may include a processor 840 and a memory 830 coupled to or coupled to the processor 840, the processor 840 and the memory 830 being configured to perform the various functions described herein.

[0159] According to examples disclosed herein, the communication manager 820 may support wireless communications at a first node. For example, the communication manager 820 may be configured to or otherwise support means for sending an indication of a capability of the first network node to switch uplink transmit chains for communications on component carriers on a number of frequency bands, where the number of frequency bands is greater than two, and where the capability indicates that the first network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. The communication manager 820 may be configured to or otherwise support means for receiving control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, where the second set is different from the first set. The communication manager 820 may be configured to or otherwise support means for switching the uplink transmit chains of the first network node based on the control information, where the SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP.

[0160] By including or configuring a communication manager 820 according to the examples described herein, the device 805 can support techniques for efficiently improving uplink throughput using uplink transmission switching when considering deactivated carriers or dormant BWPs. In some aspects, the communication manager 820 can be configured to use or otherwise coordinate with the transceiver 815, one or more antennas 825, or any combination thereof to perform various operations (e.g., receiving, monitoring, transmitting). Although the communication manager 820 is illustrated as a separate component, in some aspects, one or more functions described with reference to the communication manager 820 can be supported or performed by the processor 840, the memory 830, the code 835, or any combination thereof. For example, the code 835 can include instructions executable by the processor 840 to cause the device 805 to perform various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein, or the processor 840 and the memory 830 can be otherwise configured to perform or support such operations.

[0161] Figure 9 A block diagram 900 illustrates a device 905 that supports frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure. The device 905 may be an example of aspects of the network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0162] The receiver 910 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed to other components of the device 905. In some aspects, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.

[0163] The transmitter 915 may provide means for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of the device 905. For example, the transmitter 915 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some aspects, the transmitter 915 may support outputting information by transmitting signals via one or more antennas. Additionally or alternatively, the transmitter 915 may support outputting information by transmitting signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some aspects, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include a modem or be coupled to a modem.

[0164] The communication manager 920, the receiver 910, the transmitter 915, or various combinations thereof, or various components thereof, may be examples of means for performing various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein. For example, the communication manager 920, the receiver 910, the transmitter 915, or various combinations thereof, or components thereof, may support methods for performing one or more of the functions described herein.

[0165] In some aspects, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit). The hardware may include a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof configured as or otherwise supporting components for performing the functions described in this disclosure. In some aspects, the processor and memory coupled to the processor may be configured (e.g., by the processor executing instructions stored in the memory) to perform one or more of the functions described herein.

[0166] Additionally or alternatively, in some aspects, the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 920, receiver 910, transmitter 915, or various combinations or components thereof may be performed by a general-purpose processor (e.g., configured as or otherwise supporting means for performing the functions described herein), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.

[0167] In some aspects, the communication manager 920 can be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 910, the transmitter 915, or both. For example, the communication manager 920 can receive information from the receiver 910, transmit information to the transmitter 915, or be integrated with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.

[0168] According to examples disclosed herein, a communication manager 920 may support wireless communications at a first node. For example, the communication manager 920 may be configured to or otherwise support means for receiving, from a second network node, an indication of the second network node's capability to switch uplink transmit chains for communications on component carriers across a number of frequency bands, where the number of frequency bands is greater than two, and where the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. The communication manager 920 may be configured to or otherwise support means for sending control information to the second network node indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, where the second set is different from the first set. The communication manager 920 may be configured to or otherwise support means for switching the uplink transmit chains of the second network node based on the control information, where the SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. Communications manager 920 may be configured or otherwise support means for refraining from sending second control information indicating a second switch from communicating on the second set of frequency bands to communicating on the first set of frequency bands or the third set of frequency bands during the time slot.

[0169] By including or configuring the communication manager 920 according to the examples as described herein, the device 905 (e.g., a processor controlling or otherwise coupled to the receiver 910, the transmitter 915, the communication manager 920, or a combination thereof) can support techniques for effectively improving uplink throughput using uplink transmission switching when considering deactivated carriers or dormant BWPs.

[0170] Figure 10 A block diagram 1000 illustrates a device 1005 that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure. The device 1005 may be an example of aspects of the device 905 or the network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communication manager 1020. The device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0171] The receiver 1010 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed to other components of the device 1005. In some aspects, the receiver 1010 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, the receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.

[0172] The transmitter 1015 may provide means for outputting (e.g., transmitting, providing, conveying, transmitting) information generated by other components of the device 1005. For example, the transmitter 1015 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some aspects, the transmitter 1015 may support outputting information by transmitting signals via one or more antennas. Additionally or alternatively, the transmitter 1015 may support outputting information by transmitting signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some aspects, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include a modem or be coupled to a modem.

[0173] Device 1005 or its various components may be examples of components for performing various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein. For example, communications manager 1020 may include control information transmission manager 1025, uplink transmission chain manager 1030, or any combination thereof. Communications manager 1020 may be an example of aspects of communications manager 920 as described herein. In some aspects, communications manager 1020 or its various components may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise coordinating with receiver 1010, transmitter 1015, or both. For example, communications manager 1020 may receive information from receiver 1010, transmit information to transmitter 1015, or be integrated with receiver 1010, transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.

[0174] According to examples disclosed herein, communication manager 1020 may support wireless communications at a first node. Control information transmission manager 1025 may be configured to or otherwise support means for receiving, from a second network node, an indication of the second network node's capability to switch uplink transmit chains for communications on component carriers across a number of frequency bands, where the number of frequency bands is greater than two, and where the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. Uplink transmit chain manager 1030 may be configured to or otherwise support means for sending control information to the second network node indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, where the second set is different from the first set. Control information transmission manager 1025 may be configured to or otherwise support means for switching the uplink transmit chain of the second network node based on the control information, where the SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. The control information transmission manager 1025 may be configured or otherwise support means for refraining from transmitting second control information indicating a second switch from communicating on the second set of frequency bands to communicating on the first set of frequency bands or the third set of frequency bands during the time slot.

[0175] Figure 11A block diagram 1100 illustrates a communication manager 1120 that supports techniques for frequency switching for uplink transmissions for a set of multiple frequency bands, in accordance with one or more aspects of the present disclosure. The communication manager 1120 may be an example of aspects of the communication manager 920, the communication manager 1020, or both, as described herein. The communication manager 1120 or its various components may be examples of means for performing various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands, as described herein. For example, the communication manager 1120 may include a control information transmission manager 1125, an uplink transmission chain manager 1130, an SCS manager 1135, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses), and this communication may include communication within a protocol layer of a protocol stack, communication associated with a logical channel of the protocol stack (e.g., between protocol layers of the protocol stack, within a device, component, or virtualized component associated with the network entity 105, or between devices, components, or virtualized components associated with the network entity 105), or any combination thereof.

[0176] According to examples disclosed herein, a communication manager 1120 may support wireless communications at a first node. A control information transmission manager 1125 may be configured to or otherwise support means for receiving, from a second network node, an indication of the second network node's capability to switch an uplink transmit chain for communications on component carriers across a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. An uplink transmit chain manager 1130 may be configured to or otherwise support means for sending, to the second network node, control information indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, the second set being different from the first set. In some aspects, the control information transmission manager 1125 may be configured to or otherwise support means for switching an uplink transmit chain of the second network node based on the control information, wherein an SCS for a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. In some aspects, the control information transmission manager 1125 may be configured to or otherwise support components for refraining from transmitting second control information indicating a second switch from communication on the second set of frequency bands to communication on the first set of frequency bands or the third set of frequency bands during the time slot.

[0177] In some aspects, the SCS manager 1135 may be configured to or otherwise support components for determining the SCS for a timeslot according to the rule, wherein the rule defines that the SCS for the timeslot is based on a maximum parameter set of candidate SCS values, and wherein all candidate SCS values ​​are associated with activated component carriers or component carriers in a non-dormant BWP.

[0178] In some aspects, the SCS manager 1135 may be configured to or otherwise support components for determining an SCS for a time slot based on a rule, wherein the rule defines that the SCS for the time slot is based on a maximum parameter set of candidate SCS values, and wherein the candidate SCS values ​​are associated with a combination of activated component carriers or component carriers in a non-dormant BWP and deactivated component carriers or component carriers in a dormant BWP.

[0179] In some aspects, the candidate SCS value associated with a deactivated component carrier or a component carrier in a dormant BWP is based on a first active uplink BWP identification associated with the respective one of the deactivated component carrier or the dormant BWP.

[0180] In some aspects, the number of frequency bands is three or four.

[0181] In some aspects, the capability indicates that the second network node is capable of uplink transmission simultaneously on up to two frequency bands using two uplink transmission chains.

[0182] In some aspects, the first set of frequency bands is a single frequency band over which the second network node communicates using the first uplink transmit chain and the second uplink transmit chain. In some aspects, the second set of frequency bands includes a first frequency band over which the second network node communicates using the first uplink transmit chain and a second frequency band over which the second network node communicates using the second uplink transmit chain.

[0183] In some aspects, the first set of frequency bands includes a first frequency band over which the second network node communicates using the first uplink transmit chain and a second frequency band over which the second network node communicates using the second uplink transmit chain. In some aspects, the second set of frequency bands is a single frequency band over which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0184] In some aspects, the first set of frequency bands is a first single frequency band over which the second network node communicates using the first uplink transmit chain and the second uplink transmit chain. In some aspects, the second set of frequency bands is a second single frequency band over which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0185] In some aspects, the first set of frequency bands includes a first frequency band over which the second network node communicates using the first uplink transmit chain and a second frequency band over which the second network node communicates using the second uplink transmit chain. In some aspects, the second set of frequency bands includes a third frequency band over which the second network node communicates using the first uplink transmit chain and a fourth frequency band over which the second network node communicates using the second uplink transmit chain.

[0186] In some aspects, the control information indicates whether the component carrier is activated or deactivated.

[0187] In some aspects, the control information indicates whether the component carrier is in a dormant BWP or a non-dormant BWP.

[0188] Figure 12 A diagram of a system 1200 illustrating a device 1205 including techniques for frequency switching for uplink transmissions for a set of multiple frequency bands in accordance with one or more aspects of the present disclosure is shown. The device 1205 may be an example of, or include components of, the device 905, device 1005, or network entity 105 as described herein. The device 1205 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which may include communication via one or more wired interfaces, via one or more wireless interfaces, or any combination thereof. The device 1205 may include components that support outgoing and incoming communications, such as a communication manager 1220, a transceiver 1210, an antenna 1215, a memory 1225, code 1230, and a processor 1235. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1240).

[0189] The transceiver 1210 may support bidirectional communication as described herein via a wired link, a wireless link, or both. In some aspects, the transceiver 1210 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some aspects, the transceiver 1210 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some aspects, the device 1205 may include one or more antennas 1215, which may be capable of transmitting or receiving wireless transmissions (e.g., concurrently). The transceiver 1210 may also include a modem for: modulating a signal; providing the modulated signal for transmission (e.g., via one or more antennas 1215, via a wired transmitter); receiving the modulated signal (e.g., from one or more antennas 1215, from a wired receiver); and demodulating the signal. In some implementations, the transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1215 configured to support various receive or obtain operations, or one or more interfaces coupled to one or more antennas 1215 configured to support various transmit or output operations, or a combination thereof. In some implementations, the transceiver 1210 may include or be configured to be coupled to one or more processors or memory components that are operable to perform or support operations based on received or obtained information or signals, or to generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1210, or the transceiver 1210 and one or more antennas 1215, or the transceiver 1210 and one or more antennas 1215 and one or more processors or memory components (e.g., processor 1235 or memory 1225 or both) may be included in a chip or chip assembly installed in the device 1205. In some aspects, the transceiver may be operable to support communications via one or more communication links (eg, communication link 125, backhaul communication link 120, midhaul communication link 162, fronthaul communication link 168).

[0190] Memory 1225 may include RAM and ROM. Memory 1225 may store computer-readable, computer-executable code 1230 including instructions that, when executed by processor 1235, cause device 1205 to perform the various functions described herein. Code 1230 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1230 may not be directly executable by processor 1235, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1225 may also contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0191] The processor 1235 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic element, a discrete hardware component, or any combination thereof). In some cases, the processor 1235 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1235. The processor 1235 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1225) to cause the device 1205 to perform various functions (e.g., functions or tasks of a technique for frequency switching for uplink transmissions for a set of multiple frequency bands). For example, the device 1205 or a component of the device 1205 may include a processor 1235 and a memory 1225 coupled to the processor 1235, the processor 1235 and the memory 1225 being configured to perform the various functions described herein. Processor 1235 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software such as an operating system, virtual machine, or container) that can host functionality for performing the functions of device 1205 (e.g., by executing code 1230). Processor 1235 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in device 1205 (such as within memory 1225). In some implementations, processor 1235 may be a component of a processing system. A processing system may generally refer to a system or series of machines or components that receives inputs and processes those inputs to produce a set of outputs (which may be passed to, for example, other systems or components of device 1205). For example, a processing system of device 1205 may refer to a system that includes various other components or subcomponents of device 1205 (such as processor 1235, transceiver 1210, communications manager 1220, or other components or combinations of components of device 1205). The processing system of device 1205 can interface with other components of device 1205 and can process information (such as input or signals) received from other components or output information to other components. For example, a chip or modem of device 1205 may include a processing system and one or more interfaces for outputting information or for obtaining information, or both. The one or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information, or the same interface configured to output information and obtain information, among other specific implementations. In some specific implementations, the one or more interfaces may refer to an interface between the processing system of the chip or modem and a transmitter, so that device 1205 can transmit information output from the chip or modem.Additionally or alternatively, in some implementations, one or more interfaces may refer to an interface between a processing system of a chip or modem and a receiver, such that the device 1205 can obtain information or signal input and pass the information to the processing system. A person skilled in the art will readily recognize that a first interface can also obtain information or signal input, and a second interface can also output information or signal output.

[0192] In some aspects, the bus 1240 may support communications for (e.g., within) protocol layers of a protocol stack. In some aspects, the bus 1240 may support communications associated with logical channels of the protocol stack (e.g., between protocol layers of the protocol stack), which may include communications performed within components of the device 1205 or between different components of the device 1205 that may be co-located or located in different locations (e.g., where the device 1205 may refer to a system in which one or more of the communication manager 1220, transceiver 1210, memory 1225, code 1230, and processor 1235 may be located in one of the different components or partitioned between the different components).

[0193] In some aspects, the communications manager 1220 can manage aspects of communications with the core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communications manager 1220 can manage the delivery of data communications to client devices, such as one or more UEs 115. In some aspects, the communications manager 1220 can manage communications with other network entities 105 and can include a controller or scheduler for controlling communications with the UEs 115 in coordination with the other network entities 105. In some aspects, the communications manager 1220 can support an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between network entities 105.

[0194] According to examples disclosed herein, the communication manager 1220 may support wireless communications at a first node. For example, the communication manager 1220 may be configured to or otherwise support means for receiving, from a second network node, an indication of the second network node's capability to switch uplink transmit chains for communications on component carriers across a number of frequency bands, where the number of frequency bands is greater than two, and where the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands. The communication manager 1220 may be configured to or otherwise support means for sending control information to the second network node indicating a switch from communications on a first set of frequency bands to communications on a second set of frequency bands based on the capability, where the second set is different from the first set. The communication manager 1220 may be configured to or otherwise support means for switching the uplink transmit chains of the second network node based on the control information, where the SCS of a timeslot in which at least a portion of the switching occurs is based on a rule defining whether a candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. The communications manager 1220 may be configured or otherwise support means for refraining from sending second control information indicating a second switch from communicating on the second set of frequency bands to communicating on the first set of frequency bands or the third set of frequency bands during the time slot.

[0195] By including or configuring the communication manager 1220 according to examples as described herein, the device 1205 can support techniques for efficiently improving uplink throughput using uplink transmission switching while taking into account deactivated carriers or dormant BWPs.

[0196] In some aspects, the communication manager 1220 may be configured to perform various operations (e.g., receive, acquire, monitor, output, transmit) using or otherwise coordinating with the transceiver 1210, one or more antennas 1215 (e.g., where applicable), or any combination thereof. Although the communication manager 1220 is illustrated as a separate component, in some aspects, one or more functions described with reference to the communication manager 1220 may be supported or performed by the transceiver 1210, the processor 1235, the memory 1225, the code 1230, or any combination thereof. For example, the code 1230 may include instructions executable by the processor 1235 to cause the device 1205 to perform various aspects of the techniques for frequency switching for uplink transmissions for a set of multiple frequency bands as described herein, or the processor 1235 and the memory 1225 may be otherwise configured to perform or support such operations.

[0197] Figure 13A flow chart illustrating a method 1300 of supporting frequency switching for uplink transmissions for a set of multiple frequency bands according to one or more aspects of the present disclosure is illustrated. The operations of the method 1300 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE as described herein. Figures 1 to 8 The described functions may be performed by the UE 115. In some aspects, the UE may execute an instruction set to control the functional elements of the UE to perform the described functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the described functions.

[0198] At 1305, the method may include sending an indication of a capability of the first network node to switch uplink transmission chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of uplink transmission on fewer than the number of frequency bands simultaneously. The operations of 1305 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1305 may be performed as described with reference to Figure 7 The control information reception manager 725 described here performs.

[0199] At 1310, the method may include receiving control information indicating a switch from communicating on a first set of frequency bands to communicating on a second set of frequency bands according to the capability, the second set being different from the first set. The operations of 1310 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1310 may be performed as described with reference to Figure 7 The described uplink transmit chain manager 730 is performed.

[0200] At 1315, the method may include switching an uplink transmit chain of the first network node according to the control information, wherein the SCS of the time slot in which at least a portion of the switching occurs is based on a rule defining whether the candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. The operations of 1315 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1315 may be performed as described with reference to Figure 7 The described uplink transmit chain manager 730 is performed.

[0201] Figure 14 A flow chart illustrating a method 1400 of supporting frequency switching for uplink transmissions for a set of multiple frequency bands according to one or more aspects of the present disclosure is illustrated. The operations of the method 1400 may be implemented by a network entity or component thereof as described herein. For example, the operations of the method 1400 may be implemented by a network entity or component thereof as described herein. Figures 1 to 4 as well as Figures 9 to 12In some aspects, the network entity may execute an instruction set to control functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.

[0202] At 1405, the method may include receiving from the second network node an indication of a capability of the second network node to switch uplink transmission chains for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of uplink transmissions on fewer than the number of frequency bands simultaneously. The operations of 1405 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1405 may be performed as described with reference to Figure 11 The control information transmission manager 1125 described above is executed.

[0203] At 1410, the method may include sending control information to the second network node indicating a switch from communicating on a first set of frequency bands to communicating on a second set of frequency bands according to the capability, the second set being different from the first set. The operations of 1410 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1410 may be performed as described with reference to Figure 11 The described uplink transmission chain manager 1130 is performed.

[0204] At 1415, the method may include switching an uplink transmit chain of the second network node according to the control information, wherein the SCS of the time slot in which at least a portion of the switching occurs is based on a rule defining whether the candidate SCS value is associated with a deactivated component carrier or a component carrier in a dormant BWP. The operations of 1415 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1415 may be performed as described with reference to Figure 11 The control information transmission manager 1125 described above is executed.

[0205] At 1420, the method may include refraining from sending second control information indicating a second switch from communications on the second set of frequency bands to communications on the first set of frequency bands or the third set of frequency bands during the time slot. The operations of 1420 may be performed according to examples as disclosed herein. In some aspects, aspects of the operations of 1420 may be performed as described with reference to Figure 11 The control information transmission manager 1125 described above is executed.

[0206] The following provides an overview of various aspects of the disclosure:

[0207] Aspect 1: A first network node for wireless communication, the first network node comprising: a memory; and at least one processor, the at least one processor being coupled to the memory, wherein the at least one processor is configured to: send an indication of a capability of the first network node to switch an uplink transmit chain for communication on component carriers on a certain number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneously uplink transmitting on less than the number of frequency bands; receive control information indicating a switch from communication on a first set of frequency bands to communication on a second set of frequency bands based on the capability, the second set of frequency bands being different from the first set of frequency bands; and switch the uplink transmit chain of the first network node based on the control information, wherein the subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion.

[0208] Aspect 2: The first network node according to aspect 1, wherein the at least one processor is further configured to determine the subcarrier spacing of the time slot according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

[0209] Aspect 3: A first network node according to any one of Aspects 1 to 2, wherein the at least one processor is further configured to determine the subcarrier spacing of the time slot according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of the activated component carrier or the component carrier in the non-dormant bandwidth part and the deactivated component carrier or the component carrier in the dormant bandwidth part.

[0210] Aspect 4: A first network node according to Aspect 3, wherein the candidate subcarrier spacing value associated with the deactivated component carrier or the component carrier in the dormant bandwidth part is based on a first active uplink bandwidth part identifier associated with the corresponding one of the deactivated component carrier or the dormant bandwidth part.

[0211] Aspect 5: The first network node according to any one of aspects 1 to 4, wherein the number of frequency bands is three or four.

[0212] Aspect 6: The first network node according to any one of aspects 1 to 5, wherein the capability indicates that the first network node is capable of uplink transmission on a maximum of two frequency bands simultaneously using two uplink transmission chains.

[0213] Aspect 7: A first network node according to any one of Aspects 1 to 6, wherein the first frequency band set is a single frequency band on which the first network node communicates using a first uplink transmit chain and a second uplink transmit chain, and the second frequency band set includes a first frequency band on which the first network node communicates using the first uplink transmit chain and a second frequency band on which the first network node communicates using the second uplink transmit chain.

[0214] Aspect 8: A first network node according to any one of Aspects 1 to 7, wherein the first frequency band set includes a first frequency band on which the first network node communicates using a first uplink transmit chain and a second frequency band on which the first network node communicates using a second uplink transmit chain, and the second frequency band set is a single frequency band on which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0215] Aspect 9: A first network node according to any one of Aspects 1 to 8, wherein the first frequency band set is a first single frequency band on which the first network node communicates using a first uplink transmit chain and a second uplink transmit chain, and the second frequency band set is a second single frequency band on which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0216] Aspect 10: A first network node according to any one of Aspects 1 to 9, wherein the first frequency band set includes a first frequency band on which the first network node communicates using a first uplink transmission chain and a second frequency band on which the first network node communicates using a second uplink transmission chain, and the second frequency band set includes a third frequency band on which the first network node communicates using the first uplink transmission chain and a fourth frequency band on which the first network node communicates using the second uplink transmission chain.

[0217] Aspect 11: The first network node according to any one of aspects 1 to 10, wherein the control information indicates whether the component carrier is activated or deactivated.

[0218] Aspect 12: The first network node according to any one of aspects 1 to 11, wherein the control information indicates whether the component carrier is in the dormant bandwidth part or in the non-dormant bandwidth part.

[0219] Aspect 13: A first network node for wireless communication, the first network node comprising: a memory; and at least one processor, the at least one processor coupled to the memory, wherein the at least one processor is configured to: receive from a second network node an indication of a capability of the second network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; send to the second network node control information indicating a switch from communication on a first set of frequency bands to communication on a second set of frequency bands in accordance with the capability, the second set of frequency bands being different from the first set of frequency bands; switch the uplink transmit chain of the second network node in accordance with the control information, wherein a subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion; and refrain from sending second control information indicating a second switch from communication on the second set of frequency bands to communication on the first set of frequency bands or a third set of frequency bands during the time slot.

[0220] Aspect 14: The first network node according to aspect 13, wherein the at least one processor is further configured to determine the subcarrier spacing of the time slot according to the rule, the rule defining the subcarrier spacing of the time slot based on a maximum parameter set of the candidate subcarrier spacing values, and all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

[0221] Aspect 15: A first network node according to any one of Aspects 13 to 14, wherein the at least one processor is further configured to determine the subcarrier spacing of the time slot according to the rule, the rule defining the subcarrier spacing of the time slot based on the maximum parameter set of the candidate subcarrier spacing values, and the candidate subcarrier spacing values ​​are associated with a combination of the activated component carrier or the component carrier in the non-dormant bandwidth part and the deactivated component carrier or the component carrier in the dormant bandwidth part.

[0222] Aspect 16: A first network node according to aspect 15, wherein the candidate subcarrier spacing value associated with the deactivated component carrier or the component carrier in the dormant bandwidth part is based on a first active uplink bandwidth part identifier associated with the corresponding one of the deactivated component carrier or the dormant bandwidth part.

[0223] Aspect 17: The first network node according to any one of aspects 13 to 16, wherein the number of frequency bands is three or four.

[0224] Aspect 18: The first network node according to any one of aspects 13 to 17, wherein the capability indicates that the second network node is capable of uplink transmission on a maximum of two frequency bands simultaneously using two uplink transmission chains.

[0225] Aspect 19: A first network node according to any one of Aspects 13 to 18, wherein the first frequency band set is a single frequency band over which the second network node communicates using the first uplink transmit chain and the second uplink transmit chain, and the second frequency band set includes the first frequency band over which the second network node communicates using the first uplink transmit chain and the second frequency band over which the second network node communicates using the second uplink transmit chain.

[0226] Aspect 20: A first network node according to any one of aspects 13 to 19, wherein the first frequency band set includes a first frequency band on which the second network node communicates using a first uplink transmit chain and a second frequency band on which the second network node communicates using a second uplink transmit chain, and the second frequency band set is a single frequency band on which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0227] Aspect 21: A first network node according to any one of Aspects 13 to 20, wherein the first frequency band set is a first single frequency band on which the second network node communicates using a first uplink transmit chain and a second uplink transmit chain, and the second frequency band set is a second single frequency band on which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

[0228] Aspect 22: A first network node according to any one of Aspects 13 to 21, wherein the first frequency band set includes a first frequency band on which the second network node communicates using a first uplink transmit chain and a second frequency band on which the second network node communicates using a second uplink transmit chain, and the second frequency band set includes a third frequency band on which the second network node communicates using the first uplink transmit chain and a fourth frequency band on which the second network node communicates using the second uplink transmit chain.

[0229] Aspect 23: The first network node according to any one of aspects 13 to 22, wherein the control information indicates whether the component carrier is activated or deactivated.

[0230] Aspect 24: The first network node according to any one of aspects 13 to 23, wherein the control information indicates whether the component carrier is in the dormant bandwidth part or in the non-dormant bandwidth part.

[0231] Aspect 25: A method of wireless communication performed by a first network node, the method comprising: sending an indication of a capability of the first network node to switch an uplink transmit chain for communication on component carriers on a certain number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneously performing uplink transmission on less than the number of frequency bands; receiving control information indicating a switch from communication on a first set of frequency bands to communication on a second set of frequency bands based on the capability, the second set of frequency bands being different from the first set of frequency bands; and switching the uplink transmit chain of the first network node based on the control information, wherein the subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion.

[0232] Aspect 26: A method according to Aspect 25, the method comprising: determining the subcarrier spacing of the time slot according to the rule, wherein the rule defines the subcarrier spacing of the time slot based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

[0233] Aspect 27: A method according to any one of Aspects 25 to 26, the method comprising: determining the subcarrier spacing of the time slot according to the rule, wherein the rule defines the subcarrier spacing of the time slot based on the maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of the activated component carrier or the component carrier in the non-dormant bandwidth part and the deactivated component carrier or the component carrier in the dormant bandwidth part.

[0234] Aspect 28: A method for wireless communication at a first node, the method comprising: receiving from a second network node an indication of a capability of the second network node to switch uplink transmit chains for communication on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneously uplink transmitting on fewer than the number of frequency bands; sending to the second network node control information indicating a switch from communication on a first set of frequency bands to communication on a second set of frequency bands in accordance with the capability, the second set of frequency bands being different from the first set of frequency bands; switching the uplink transmit chain of the second network node in accordance with the control information, wherein a subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion; and refraining from sending second control information indicating a second switch from communication on the second set of frequency bands to communication on the first set of frequency bands or a third set of frequency bands during the time slot.

[0235] Aspect 29: A method according to Aspect 28, the method comprising: determining the subcarrier spacing of the time slot according to the rule, wherein the rule defines the subcarrier spacing of the time slot based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

[0236] Aspect 30: A method according to any one of Aspects 28 to 29, the method comprising: determining the subcarrier spacing of the time slot according to the rule, wherein the rule defines the subcarrier spacing of the time slot based on the maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of the activated component carrier or the component carrier in the non-dormant bandwidth part and the deactivated component carrier or the component carrier in the dormant bandwidth part.

[0237] Aspect 31: An apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 1 to 12.

[0238] Aspect 32: An apparatus comprising at least one component for performing the method according to any one of aspects 1 to 12.

[0239] Aspect 33: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 12.

[0240] Aspect 34: An apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 13 to 24.

[0241] Aspect 35: An apparatus comprising at least one component for performing the method according to any one of aspects 13 to 24.

[0242] Aspect 36: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method according to any one of aspects 13 to 24.

[0243] Aspect 37: An apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 25 to 27.

[0244] Aspect 38: An apparatus comprising at least one component for performing the method according to any one of aspects 25 to 27.

[0245] Aspect 39: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method according to any one of aspects 25 to 27.

[0246] Aspect 40: An apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of aspects 28 to 30.

[0247] Aspect 41: An apparatus comprising at least one component for performing the method according to any one of aspects 28 to 30.

[0248] Aspect 42: A non-transitory computer-readable medium storing code, the code comprising instructions executable by a processor to perform the method according to any one of aspects 28 to 30.

[0249] The methods described herein describe possible implementations, and the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Additionally, aspects from two or more methods may be combined.

[0250] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used throughout much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0251] The information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips referred to throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0252] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration).

[0253] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as one or more instructions or codes of a computer-readable medium, or sent using one or more instructions or codes of a computer-readable medium. Other examples and specific implementations are within the scope of this disclosure and the claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. Features that implement the functions may also be physically located at different locations, including being distributed so that various parts of the functions are implemented at different physical locations.

[0254] Computer-readable media includes both non-transient computer storage media and communication media, and the communication media includes any medium that promotes a computer program to be transferred from one location to another.Non-transient storage media can be any available medium that can be accessed by a general or special-purpose computer.By way of example and not limitation, non-transient computer-readable media can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices or can be used for carrying or storing desired program code components and any other non-transient medium that can be accessed by a general or special-purpose computer or a general or special-purpose processor in the form of an instruction or data structure.Moreover, any connection is appropriately referred to as computer-readable media.For example, if software is sent from a website, a server or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a digital subscriber line (DSL) or a wireless technology such as infrared, radio and microwave, then the coaxial cable, the fiber optic cable, the twisted pair, the DSL or the wireless technology such as infrared, radio and microwave are included in the definition of computer-readable media. As used herein, disks and optical discs include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs. Magnetic disks can reproduce data magnetically, and optical discs can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0255] As used herein, the term "or" is an inclusive "or" unless restrictive language is used with respect to listed alternatives. For example, reference to "X is based on A or B" should be interpreted to include within its scope X is based on A, X is based on B, and X is based on A and B. In this regard, reference to "X is based on A or B" means "at least one of A or B" or "one or more of A or B" because "or" is inclusive. Similarly, reference to "X is based on A, B, or C" should be interpreted to include within its scope X is based on A, X is based on B, X is based on C, X is based on A and B, X is based on A and C, X is based on B and C, and X is based on A, B, and C. In this regard, reference to "X is based on A, B, or C" means "at least one of A, B, or C" or "one or more of A, B, or C" because "or" is inclusive. As an example of restrictive language, a reference to "X is based only on one of A or B" should be interpreted to include within its scope X being based on A and X being based on B, but not including X being based on both A and B. Furthermore, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" (where "A" can be information, a condition, a factor, etc.) should be interpreted as "based at least on A" unless specifically stated otherwise. Similarly, as used herein, the phrase "set" should be understood to include the possibility of a set having one member. That is, the phrase "set" should be understood in the same manner as "one or more" or "at least one."

[0256] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database, or other data structure), ascertaining, and the like. Furthermore, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Furthermore, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.

[0257] In the accompanying drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between similar components. If only the first reference label is used in the specification, the description applies to any of the similar components having the same first reference label, regardless of the second reference label or other subsequent reference labels.

[0258] The description set forth herein in conjunction with the accompanying drawings describes example configurations and does not represent all examples that can be implemented or within the scope of the claims. The terms "aspect" or "example" as used herein mean "serving as an aspect, example, instance, or illustration," rather than "preferred" or "having advantages over other aspects." The detailed description includes specific details to provide an understanding of the described technology. However, these technologies can be practiced without these specific details. In some instances, structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0259] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A first network node for wireless communication, the first network node comprising: Memory; and at least one processor coupled to the memory, wherein the at least one processor is configured to: sending an indication of a capability of the first network node to switch uplink transmit chains used for communications on component carriers over a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receiving control information indicative of a switch from communicating over a first set of frequency bands to communicating over a second set of frequency bands in accordance with the capability, the second set of frequency bands being different than the first set of frequency bands; as well as The uplink transmit chain of the first network node is switched according to the control information, wherein a subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion.

2. The first network node of claim 1 , wherein the at least one processor is further configured to: The subcarrier spacing for the time slot is determined according to the rule, wherein the rule defines that the subcarrier spacing for the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

3. The first network node of claim 1 , wherein the at least one processor is further configured to: The subcarrier spacing of the time slot is determined according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of activated component carriers or component carriers in a non-dormant bandwidth portion and the deactivated component carriers or the component carriers in a dormant bandwidth portion.

4. The first network node of claim 3 , wherein the candidate subcarrier spacing value associated with the deactivated component carrier or the component carrier in the dormant bandwidth portion is based on a first active uplink bandwidth portion identifier associated with the respective one of the deactivated component carrier or the dormant bandwidth portion. The first network node according to claim 1 , wherein the number of frequency bands is three or four. The first network node according to claim 1 , wherein the capability indicates that the first network node is capable of uplink transmission on a maximum of two frequency bands simultaneously using two uplink transmission chains.

7. The first network node of claim 1 , wherein the first frequency band set is a single frequency band over which the first network node communicates using a first uplink transmit chain and a second uplink transmit chain, and wherein the second frequency band set includes a first frequency band over which the first network node communicates using the first uplink transmit chain and a second frequency band over which the first network node communicates using the second uplink transmit chain.

8. The first network node of claim 1 , wherein the first set of frequency bands comprises a first frequency band over which the first network node communicates using a first uplink transmit chain and a second frequency band over which the first network node communicates using a second uplink transmit chain, and wherein the second set of frequency bands is a single frequency band over which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

9. The first network node of claim 1 , wherein the first set of frequency bands is a first single frequency band over which the first network node communicates using a first uplink transmit chain and a second uplink transmit chain, and wherein the second set of frequency bands is a second single frequency band over which the first network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

10. The first network node of claim 1 , wherein the first frequency band set comprises a first frequency band over which the first network node communicates using a first uplink transmit chain and a second frequency band over which the first network node communicates using a second uplink transmit chain, and wherein the second frequency band set comprises a third frequency band over which the first network node communicates using the first uplink transmit chain and a fourth frequency band over which the first network node communicates using the second uplink transmit chain.

11. The first network node according to claim 1, wherein the control information indicates whether the component carrier is activated or deactivated.

12. The first network node of claim 1, wherein the control information indicates whether the component carrier is in a dormant bandwidth part or in a non-dormant bandwidth part.

13. A first network node for wireless communication, the first network node comprising: Memory; and at least one processor coupled to the memory, wherein the at least one processor is configured to: receiving, from a second network node, an indication of a capability of the second network node to switch uplink transmit chains used for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; sending control information to the second network node indicating switching from communicating over a first set of frequency bands to communicating over a second set of frequency bands in accordance with the capability, the second set of frequency bands being different from the first set of frequency bands; switching the uplink transmit chain of the second network node in accordance with the control information, wherein a subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion; as well as Sending second control information indicating a second switch from communicating over the second set of frequency bands to communicating over the first set of frequency bands or a third set of frequency bands during the time slot is refrained.

14. The first network node of claim 13 , wherein the at least one processor is further configured to determine the subcarrier spacing of the time slot according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

15. The first network node of claim 13 , wherein the at least one processor is further configured to determine the subcarrier spacing of the time slot according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of activated component carriers or component carriers in a non-dormant bandwidth portion and the deactivated component carriers or the component carriers in a dormant bandwidth portion.

16. The first network node of claim 15, wherein the candidate subcarrier spacing value associated with the deactivated component carrier or the component carrier in the dormant bandwidth portion is based on a first active uplink bandwidth portion identifier associated with the respective one of the deactivated component carrier or the dormant bandwidth portion. The first network node according to claim 13 , wherein the number of frequency bands is three or four.

18. The first network node according to claim 13, wherein the capability indicates that the second network node is capable of uplink transmission on a maximum of two frequency bands simultaneously using two uplink transmission chains.

19. The first network node of claim 13 , wherein the first set of frequency bands is a single frequency band over which the second network node communicates using a first uplink transmit chain and a second uplink transmit chain, and wherein the second set of frequency bands includes a first frequency band over which the second network node communicates using the first uplink transmit chain and a second frequency band over which the second network node communicates using the second uplink transmit chain.

20. The first network node of claim 13 , wherein the first set of frequency bands comprises a first frequency band over which the second network node communicates using a first uplink transmit chain and a second frequency band over which the second network node communicates using a second uplink transmit chain, and wherein the second set of frequency bands is a single frequency band over which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

21. The first network node of claim 13 , wherein the first set of frequency bands is a first single frequency band over which the second network node communicates using a first uplink transmit chain and a second uplink transmit chain, and wherein the second set of frequency bands is a second single frequency band over which the second network node communicates using both the first uplink transmit chain and the second uplink transmit chain.

22. The first network node according to claim 13, wherein the first frequency band set includes a first frequency band over which the second network node communicates using a first uplink transmit chain and a second frequency band over which the second network node communicates using a second uplink transmit chain, and wherein the second frequency band set includes a third frequency band over which the second network node communicates using the first uplink transmit chain and a fourth frequency band over which the second network node communicates using the second uplink transmit chain.

23. The first network node according to claim 13, wherein the control information indicates whether the component carrier is activated or deactivated.

24. The first network node of claim 13, wherein the control information indicates whether the component carrier is in a dormant bandwidth portion or a non-dormant bandwidth portion.

25. A method of wireless communication performed by a first network node, the method comprising: sending an indication of a capability of the first network node to switch uplink transmit chains used for communications on component carriers over a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the first network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; receiving control information indicative of a switch from communicating over a first set of frequency bands to communicating over a second set of frequency bands in accordance with the capability, the second set of frequency bands being different than the first set of frequency bands; as well as The uplink transmit chain of the first network node is switched according to the control information, wherein a subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion.

26. The method according to claim 25, comprising: The subcarrier spacing for the time slot is determined according to the rule, wherein the rule defines that the subcarrier spacing for the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

27. The method according to claim 25, comprising: The subcarrier spacing of the time slot is determined according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of activated component carriers or component carriers in a non-dormant bandwidth portion and the deactivated component carriers or the component carriers in a dormant bandwidth portion.

28. A method of wireless communication at a first node, the method comprising: receiving, from a second network node, an indication of a capability of the second network node to switch uplink transmit chains used for communications on component carriers on a number of frequency bands, wherein the number of frequency bands is greater than two, and wherein the capability indicates that the second network node is capable of simultaneous uplink transmission on fewer than the number of frequency bands; sending control information to the second network node indicating switching from communicating over a first set of frequency bands to communicating over a second set of frequency bands in accordance with the capability, the second set of frequency bands being different from the first set of frequency bands; switching the uplink transmit chain of the second network node in accordance with the control information, wherein a subcarrier spacing of a time slot in which at least a portion of the switching occurs is based on a rule defining whether a candidate subcarrier spacing value is associated with a deactivated component carrier or a component carrier in a dormant bandwidth portion; as well as Sending second control information indicating a second switch from communicating over the second set of frequency bands to communicating over the first set of frequency bands or a third set of frequency bands during the time slot is refrained.

29. The method according to claim 28, comprising: The subcarrier spacing for the time slot is determined according to the rule, wherein the rule defines that the subcarrier spacing for the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein all the candidate subcarrier spacing values ​​are associated with activated component carriers or component carriers in a non-dormant bandwidth portion.

30. The method of claim 28, comprising: The subcarrier spacing of the time slot is determined according to the rule, wherein the rule defines that the subcarrier spacing of the time slot is based on a maximum parameter set of the candidate subcarrier spacing values, and wherein the candidate subcarrier spacing values ​​are associated with a combination of activated component carriers or component carriers in a non-dormant bandwidth portion and the deactivated component carriers or the component carriers in a dormant bandwidth portion.

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