New State Transition Design for Carrier Aggregation SCELL

Abstract

This disclosure relates to methods for operating a user equipment (UE) for wireless communication with a network. In some aspects, the UE obtains a Media Access Control (MAC) control element (CE) from the network. The MAC CE can be configured to indicate any one of a plurality of state transition actions for a secondary cell. When the state transition action indicated by the MAC CE includes a transition to a secondary cell sleep state, the UE transitions to a secondary cell sleep state. The UE operates in the secondary cell sleep state.

Description

[0001] This application is a divisional application of the application filed on December 19, 2018, with application number 201880081700.4 and entitled "New State Transition Design for Carrier Aggregation SCELL".

[0002] Cross-reference to related applications

[0003] This application claims priority and benefit from the following applications: non-provisional application serial number 16 / 224,311 filed with the United States Patent and Trademark Office on December 18, 2018; provisional application serial number 62 / 607,889 filed with the United States Patent and Trademark Office on December 19, 2017; and provisional application serial number 62 / 619,692 filed with the United States Patent and Trademark Office on January 19, 2018. The entire contents of the above applications are incorporated herein by reference as if their entire contents were fully set forth herein and used for all applicable purposes. Technical Field

[0004] In general, the techniques discussed below relate to wireless communication systems, and more specifically, to new state transition designs for carrier aggregation (CA) secondary cells (SCells). Background Technology

[0005] In wireless communication networks equipped with carrier aggregation (CA) features, the operational state of secondary cells (SCells) can be controlled to improve user equipment (UE) performance (e.g., to reduce power consumption in the UE). In one example, an SCell set can be configured to operate in an active state during periods when one or more UEs need to communicate with the SCell set. In another example, to reduce power consumption in the UE, an SCell set can be configured to operate in a deactivated state during periods when one or more UEs no longer need to communicate with the SCell set. With the introduction of new operational states for SCells and UEs to further improve performance, improved mechanisms are needed to control the transitions between new and traditional operational states. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a wireless communication system.

[0007] Figure 2 This is a conceptual diagram of an example of a wireless access network.

[0008] Figure 3 This is a schematic diagram of the organization of radio resources in an air interface using Orthogonal Frequency Division Multiplexing (OFDM).

[0009] Figure 4This is a block diagram that conceptually illustrates an example of a hardware implementation of a scheduling entity based on some aspects of this disclosure.

[0010] Figure 5 This is a block diagram that conceptually illustrates an example of a hardware implementation of a scheduled entity based on some aspects of this disclosure.

[0011] Figure 6 This is an example state transition diagram for the primary cell (PCell) and secondary cell (SCell) based on some aspects of this disclosure.

[0012] Figure 7 An example format of a conventional SCell activation / deactivation media access control (MAC) control element (CE) of 8 bits is shown.

[0013] Figure 8 An example format of a traditional SCell activation / deactivation MAC CE is shown, consisting of four octets.

[0014] Figure 9 A table is shown that includes a list of example Logical Channel Identifier (LCID) values.

[0015] Figure 10 Tables indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions are shown in various aspects of this disclosure.

[0016] Figure 11 Tables indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions are shown in various aspects of this disclosure.

[0017] Figure 12 This is an example state transition diagram for PCell and SCell based on some aspects of this disclosure.

[0018] Figure 13 Tables indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions are shown in various aspects of this disclosure.

[0019] Figure 14 This is an example state transition diagram for PCell and SCell based on some aspects of this disclosure.

[0020] Figure 15 Tables indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions are shown in various aspects of this disclosure.

[0021] Figure 16The example format for a new SCell activation / deactivation MAC CE is shown, consisting of two octets.

[0022] Figure 17 An example format for a new SCell activation / deactivation MAC CE is shown, consisting of eight octets.

[0023] Figure 18 A table is shown that includes a list of example Logical Channel Identifier (LCID) values.

[0024] Figure 19 Tables indicating exemplary new MAC CE values ​​and their corresponding state transition actions are shown in various aspects of this disclosure.

[0025] Figure 20 Tables showing exemplary new MAC CE values ​​and conventional MAC CE values ​​for controlling SCell state transitions are illustrated in various aspects of this disclosure.

[0026] Figure 21 Tables showing exemplary new MAC CE values ​​and conventional MAC CE values ​​for controlling SCell state transitions are illustrated in various aspects of this disclosure.

[0027] Figure 22 Tables showing exemplary new MAC CE values ​​and conventional MAC CE values ​​for controlling SCell state transitions are illustrated in various aspects of this disclosure.

[0028] Figure 23 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0029] Figure 24 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0030] Figure 25 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0031] Figure 26 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0032] Figure 27 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0033] Figure 28 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0034] Figure 29 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0035] Figure 30 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0036] Figure 31 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0037] Figure 32 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0038] Figure 33 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0039] Figure 34 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0040] Figure 35 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0041] Figure 36 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0042] Figure 37 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0043] Figure 38 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0044] Figure 39 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0045] Figure 40 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0046] Figure 41 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure.

[0047] Figure 42 This is a flowchart illustrating an exemplary process according to some aspects of this disclosure. Summary of the Invention

[0048] To provide a basic understanding of one or more aspects of this application, a brief overview of these aspects is given below. This disclosure is not an exhaustive summary of all the features considered in this disclosure, nor is it intended to identify key or essential elements of all aspects of this disclosure, nor to describe the scope of any or all aspects of this disclosure. Its sole purpose is to present some concepts of one or more aspects of this disclosure in a simplified form as a prelude to the more detailed description that follows.

[0049] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a Media Access Control (MAC) control element (CE) from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; transitioning to the secondary cell fast activation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state; and operating in the secondary cell fast activation state.

[0050] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity. The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The method further includes: transitioning from a secondary cell deactivation state or a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The method further includes: transitioning from the secondary cell active state or the secondary cell fast activation state to the secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The method further includes: operating in the secondary cell active state based on the transition to the secondary cell active state, or operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0051] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: at least one processor, a transceiver communicatively coupled to the at least one processor, and a memory communicatively coupled to the at least one processor. The processor is configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The processor is further configured to: transition from a secondary cell deactivation state or a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The processor is further configured to: transition from a secondary cell active state or the secondary cell fast activation state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The processor is further configured to: operate in the secondary cell active state based on the transition to the secondary cell active state, or operate in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0052] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity. The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The method further includes: transitioning from a secondary cell active state to a secondary cell fast active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell fast active state. The method further includes: transitioning from the secondary cell fast active state to the secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The method further includes: operating in the secondary cell fast active state based on the transition to the secondary cell fast active state, or operating in the secondary cell active state based on the transition to the secondary cell active state.

[0053] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: at least one processor, a transceiver communicatively coupled to the at least one processor, and a memory communicatively coupled to the at least one processor. The processor is configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The processor is further configured to: transition from a secondary cell active state to a secondary cell fast active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell fast active state. The processor is further configured to: transition from the secondary cell fast active state to the secondary cell active state when the state transition action indicated by the MAC CE includes a transition to the secondary cell active state. The processor is further configured to: operate in the secondary cell fast active state based on the transition to the secondary cell fast active state, or operate in the secondary cell active state based on the transition to the secondary cell active state.

[0054] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity. The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The method further includes: transitioning from a secondary cell active state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The method further includes: transitioning from the secondary cell deactivation state to the secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The method further includes: operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state, or operating in the secondary cell active state based on the transition to the secondary cell active state.

[0055] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: at least one processor, a transceiver communicatively coupled to the at least one processor, and a memory communicatively coupled to the at least one processor. The processor is configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The processor is further configured to: transition from a secondary cell active state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The processor is further configured to: transition from the secondary cell deactivation state to the secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The processor is further configured to: operate in the secondary cell deactivation state based on the transition to the secondary cell deactivation state, or operate in the secondary cell active state based on the transition to the secondary cell active state.

[0056] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity. The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The method further includes: transitioning from a secondary cell active state to a secondary cell fast activation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state. The method further includes: operating within the secondary cell fast activation state.

[0057] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: at least one processor, a transceiver communicatively coupled to the at least one processor, and a memory communicatively coupled to the at least one processor. The processor is configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The processor is further configured to: transition from a secondary cell active state to a secondary cell fast activation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state. The processor is further configured to: operate in the secondary cell fast activation state.

[0058] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity. The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The method further includes: transitioning from a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The method further includes: transitioning from the secondary cell fast activation state to the secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The method further includes: operating in the secondary cell active state based on the transition to the secondary cell active state, or operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0059] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: at least one processor, a transceiver communicatively coupled to the at least one processor, and a memory communicatively coupled to the at least one processor. The processor is configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The processor is further configured to: transition from a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The processor is further configured to: transition from the secondary cell fast activation state to the secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The processor is further configured to: operate in the secondary cell active state based on the transition to the secondary cell active state, or operate in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0060] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity. The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The method further includes: obtaining a Logical Channel Identifier (LCID) value indicating whether the MAC CE is a Fast Activation / Deactivation MAC CE, wherein the Fast Activation / Deactivation MAC CE supports a two-octet format or an eight-octet format. The method further includes: determining whether to use a two-octet format or an eight-octet format based on the value of pre-selected bits in the MAC CE.

[0061] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: at least one processor, a transceiver communicatively coupled to the at least one processor, and a memory communicatively coupled to the at least one processor. The processor is configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell. The processor is further configured to: obtain a Logical Channel Identifier (LCID) value indicating whether the MAC CE is a Fast Activation / Deactivation MAC CE, wherein the Fast Activation / Deactivation MAC CE supports a two-octet format or an eight-octet format. The processor is further configured to: determine whether to use a two-octet format or an eight-octet format based on the value of a pre-selected bit in the MAC CE.

[0062] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; transitioning to a secondary cell sleep state when the state transition action indicated by the MAC CE includes a transition to a secondary cell sleep state; and operating within the secondary cell sleep state.

[0063] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; transition to a secondary cell sleep state when the state transition action indicated by the MAC CE includes a transition to a secondary cell sleep state; and operate in the secondary cell sleep state.

[0064] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; a unit for transitioning to a secondary cell sleep state when the state transition action indicated by the MAC CE includes a transition to a secondary cell sleep state; and a unit for operating in the secondary cell sleep state.

[0065] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include: code for causing computation to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; transition to a secondary cell dormant state when the state transition action indicated by the MAC CE includes a transition to a secondary cell dormant state; and perform operations in the secondary cell dormant state.

[0066] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to control the activation and deactivation of a secondary cell; transitioning from a secondary cell dormant state to a secondary cell deactivation state when the MAC CE includes an indication to transition to a secondary cell deactivation state; and operating within the secondary cell deactivation state.

[0067] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to control the activation and deactivation of a secondary cell; transition from a secondary cell dormant state to a secondary cell deactivation state when the MAC CE includes an indication to transition to a secondary cell deactivation state; and operate in the secondary cell deactivation state.

[0068] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for obtaining a MAC CE from a network, wherein the MAC CE is configured to control the activation and deactivation of a secondary cell; a unit for transitioning from a secondary cell dormant state to a secondary cell deactivation state when the MAC CE includes an indication to transition to a secondary cell deactivation state; and a unit for operating in the secondary cell deactivation state.

[0069] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include: code for causing a computer to: obtain a MAC CE from a network, wherein the MAC CE is configured to control the activation and deactivation of a secondary cell; transition from a secondary cell dormant state to a secondary cell deactivation state when the MAC CE includes an indication to transition to a secondary cell deactivation state; and perform operations in the secondary cell deactivation state.

[0070] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell sleep state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The method further includes: transitioning from the secondary cell active state or the secondary cell deactivation state to the secondary cell sleep state when the first MAC CE includes an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell active state or a secondary cell deactivation state. The method further includes: operating within the secondary cell sleep state.

[0071] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: obtain a first MACCE and a second MACCE from a network, wherein the first MACCE and the second MACCE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MACCE is configured to: control a transition to a secondary cell sleep state, and the second MACCE is configured to: control the activation and deactivation of the secondary cell. The at least one processor may also be configured to: transition from a secondary cell active state or a secondary cell deactivation state to the secondary cell sleep state when the first MACCE includes an indication to transition to the secondary cell sleep state and the second MACCE includes an indication to transition to a secondary cell active state or a secondary cell deactivation state. The at least one processor may also be configured to: operate in the secondary cell sleep state.

[0072] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for obtaining a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell sleep state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The apparatus may further include: a unit for transitioning from a secondary cell active state or a secondary cell deactivation state to the secondary cell sleep state when the first MAC CE includes an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell active state or a secondary cell deactivation state. The apparatus may further include: a unit for operating in the secondary cell sleep state.

[0073] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to obtain a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell dormant state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The computer-executable code may further include code for causing the computer to: transition from a secondary cell active state or a secondary cell deactivation state to the secondary cell dormant state when the first MAC CE includes an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state or a secondary cell deactivation state. The computer-executable code may further include code for causing the computer to operate in the secondary cell dormant state.

[0074] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell sleep state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The method further includes: transitioning from the secondary cell sleep state to a secondary cell active state when the first MAC CE does not include an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell active state. The method further includes: transitioning from the secondary cell sleep state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. The method further includes: operating in the secondary cell activation state based on the transition to the secondary cell activation state, or operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0075] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: obtain a first MACCE and a second MACCE from a network, wherein the first MACCE and the second MACCE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MACCE is configured to: control a transition to a secondary cell sleep state, and the second MACCE is configured to: control the activation and deactivation of the secondary cell. The at least one processor may also be configured to: transition from the secondary cell sleep state to a secondary cell active state when the first MACCE does not include an indication to transition to the secondary cell sleep state and the second MACCE includes an indication to transition to a secondary cell active state. The at least one processor may also be configured to: transition from the secondary cell sleep state to a secondary cell deactivation state when the first MACCE does not include an indication to transition to the secondary cell sleep state and the second MACCE includes an indication to transition to a secondary cell deactivation state. The at least one processor may also be configured to operate in the secondary cell activation state based on the transition to the secondary cell activation state, or to operate in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0076] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for obtaining a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell sleep state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The apparatus may further include: a unit for transitioning from a secondary cell sleep state to a secondary cell active state when the first MAC CE does not include an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell active state. The apparatus may further include: a unit for transitioning from a secondary cell sleep state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. The apparatus may further include a unit for operating in the secondary cell activation state based on the transition to the secondary cell activation state, or for operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0077] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to obtain a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell dormant state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The computer-executable code may further include code for causing the computer to: transition from the secondary cell dormant state to the secondary cell active state when the first MAC CE does not include an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to the secondary cell active state. The computer-executable code may further include code for causing the computer to: transition from the secondary cell dormant state to the secondary cell deactivation state when the first MAC CE does not include an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to the secondary cell deactivation state. The computer-executable code may further include code for causing the computer to perform operations in the secondary cell active state based on the transition to the secondary cell active state, or to perform operations in the secondary cell deactivated state based on the transition to the secondary cell deactivated state.

[0078] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell dormant state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The method further includes: transitioning from a secondary cell deactivation state to a secondary cell active state when the first MAC CE does not include an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state. The method further includes: transitioning from a secondary cell active state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. The method further includes: operating in the secondary cell activation state based on the transition to the secondary cell activation state, or operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0079] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: obtain a first MACCE and a second MACCE from a network, wherein the first MACCE and the second MACCE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MACCE is configured to: control a transition to a secondary cell sleep state, and the second MACCE is configured to: control the activation and deactivation of the secondary cell. The at least one processor may also be configured to: transition from a secondary cell deactivation state to a secondary cell activation state when the first MACCE does not include an indication to transition to the secondary cell sleep state and the second MACCE includes an indication to transition to a secondary cell activation state. The at least one processor may also be configured to: transition from a secondary cell activation state to a secondary cell deactivation state when the first MACCE does not include an indication to transition to the secondary cell sleep state and the second MACCE includes an indication to transition to a secondary cell deactivation state. The at least one processor may also be configured to operate in the secondary cell activation state based on the transition to the secondary cell activation state, or to operate in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0080] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for obtaining a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell sleep state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The apparatus may further include: a unit for transitioning from a secondary cell deactivation state to a secondary cell activation state when the first MAC CE does not include an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell activation state. The apparatus may further include: a unit for transitioning from a secondary cell activation state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to the secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. The apparatus may further include a unit for operating in the secondary cell activation state based on the transition to the secondary cell activation state, or for operating in the secondary cell deactivation state based on the transition to the secondary cell deactivation state.

[0081] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to obtain a first MAC CE and a second MAC CE from a network, wherein the first MAC CE and the second MAC CE are configured to: indicate one of a plurality of state transition actions for a secondary cell, wherein the first MAC CE is configured to: control a transition to a secondary cell dormant state, and the second MAC CE is configured to: control the activation and deactivation of the secondary cell. The computer-executable code may further include code for causing the computer to: transition from a secondary cell deactivation state to a secondary cell active state when the first MAC CE does not include an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state. The computer-executable code may further include code for causing the computer to: transition from a secondary cell active state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to the secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. The computer-executable code may further include code for causing the computer to perform operations in the secondary cell active state based on the transition to the secondary cell active state, or to perform operations in the secondary cell deactivated state based on the transition to the secondary cell deactivated state.

[0082] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; obtaining a first Logical Channel Identifier (LCID) value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on an octet format, or obtaining a second LCID value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on a four-octet format; and identifying the MAC CE corresponding to the secondary cell based on the one-octet format or the four-octet format.

[0083] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; obtain a first Logical Channel Identifier (LCID) value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on an octet format, or obtain a second LCID value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on a four-octet format; and identify the MAC CE corresponding to the secondary cell based on the one-octet format or the four-octet format.

[0084] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for obtaining a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; a unit for obtaining a first Logical Channel Identifier (LCID) value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on an octet format, or a second LCID value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on a four-octet format; and a unit for identifying the MAC CE corresponding to the secondary cell based on the one-octet format or the four-octet format.

[0085] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include: code for causing computation to: obtain a MAC CE from a network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for a secondary cell; obtain a first Logical Channel Identifier (LCID) value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on an octet format, or obtain a second LCID value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on a four-octet format; and identify the MAC CE corresponding to the secondary cell based on the one-octet format or the four-octet format.

[0086] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: receiving a Radio Resource Control (RRC) connection reconfiguration message, the RRC connection reconfiguration message including an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state; and directly transitioning to the secondary cell active state or the secondary cell dormant state based on the indication.

[0087] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: receive an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state; and directly transition to the secondary cell active state or the secondary cell dormant state based on the indication.

[0088] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for receiving an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state; and a unit for directly transitioning to the secondary cell active state or the secondary cell dormant state based on the indication.

[0089] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to: receive an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state; and directly switch to the secondary cell active state or the secondary cell dormant state based on the indication.

[0090] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: receiving an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to release a secondary cell; and releasing the secondary cell from a dormant state.

[0091] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: receive an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to release a secondary cell. The at least one processor may also be configured to: release the secondary cell from a dormant state.

[0092] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for receiving an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to release a secondary cell; and a unit for releasing the secondary cell from a dormant state.

[0093] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to receive an RRC connection reconfiguration message, the RRC connection reconfiguration message including an indication to release the secondary cell. The computer-executable code may also include code for causing the computer to release the secondary cell from a dormant state.

[0094] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: configuring a secondary cell deactivation timer, and transitioning from a secondary cell sleep state to a secondary cell deactivation state when the secondary cell deactivation timer expires.

[0095] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: configure a secondary cell deactivation timer, and when the secondary cell deactivation timer expires, transition from a secondary cell sleep state to a secondary cell deactivation state.

[0096] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for configuring a secondary cell deactivation timer, and a unit for transitioning from a secondary cell sleep state to a secondary cell deactivation state when the secondary cell deactivation timer expires.

[0097] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to: configure a secondary cell deactivation timer, and transition from a secondary cell sleep state to a secondary cell deactivation state when the secondary cell deactivation timer expires.

[0098] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: configuring a secondary cell inactivity timer for a secondary cell, wherein the secondary cell inactivity timer controls the transition from a secondary cell active state to a secondary cell dormant state; and transitioning from the secondary cell active state to the secondary cell dormant state when the secondary cell inactivity timer expires.

[0099] In one example, an apparatus for wireless communication is disclosed. The apparatus may include at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus may also include a memory communicatively coupled to the at least one processor. The at least one processor may be configured to: configure a secondary cell inactivity timer for a secondary cell, wherein the secondary cell inactivity timer controls the transition from a secondary cell active state to a secondary cell dormant state; and when the secondary cell inactivity timer expires, transition from the secondary cell active state to the secondary cell dormant state.

[0100] In one example, an apparatus for wireless communication is disclosed. The apparatus may include: a unit for configuring a secondary cell inactivity timer for a secondary cell, wherein the secondary cell inactivity timer controls the transition from a secondary cell active state to a secondary cell dormant state; and a unit for transitioning from the secondary cell active state to the secondary cell dormant state when the secondary cell inactivity timer expires.

[0101] In one example, a non-transitory computer-readable medium storing computer-executable code is disclosed. The computer-executable code may include code for causing a computer to: configure a secondary cell inactivity timer for a secondary cell, wherein the secondary cell inactivity timer controls the transition from a secondary cell active state to a secondary cell dormant state; and when the secondary cell inactivity timer expires, transition from the secondary cell active state to the secondary cell dormant state.

[0102] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a MAC CE from a network; transitioning from a secondary cell deactivation state or a secondary cell activation state to a secondary cell fast activation state based at least on the MAC CE; and operating at least in the secondary cell fast activation state. In some aspects, the method further includes: detecting the expiration of a secondary cell deactivation timer or a handover of the secondary cell; transitioning to the secondary cell deactivation state in response to the detection or the handover; and operating in the secondary cell deactivation state. In some aspects, the method further includes: obtaining an RRC handover signal while operating in the secondary cell fast activation state, and continuing to operate in the secondary cell activation state based on the RRC handover signal. In some aspects, the method further includes: obtaining an RRC handover signal while operating in the secondary cell fast activation state, and switching to the secondary cell activation state based on the RRC handover signal. In some aspects, the method further includes: obtaining an RRC connection reconfiguration with an indication to release the secondary cell, releasing the secondary cell based on the RRC connection reconfiguration, and transitioning to an RRC connection state for the primary cell.

[0103] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: detecting the expiration of a reduced-power inactivity timer associated with a secondary cell when operating in a secondary cell active state; transitioning to a secondary cell fast active state in response to the detection; and operating in the secondary cell fast active state.

[0104] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in an RRC connection state for a primary cell, detecting the addition of a secondary cell, directly transitioning to a secondary cell fast activation state in response to the detection, and operating at least in the secondary cell fast activation state.

[0105] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning from a secondary cell deactivation state or a secondary cell activation state to the fast activation state based on the first MAC CE independent of the second MAC CE; and operating at least in the fast activation state.

[0106] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning from the fast activation state to a secondary cell deactivation state or a secondary cell activation state based on the second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state; and operating in the secondary cell deactivation state or the secondary cell activation state.

[0107] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning from a deactivated secondary cell state to an activated secondary cell state based on the second MAC CE; or transitioning from an activated secondary cell state to a deactivated secondary cell state based on the second MAC CE, wherein the first MAC CE indicates a transition out of a fast activation state; and operating in the activated secondary cell state or the deactivated secondary cell state.

[0108] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a MAC CE from a network; transitioning from a secondary cell active state to a secondary cell fast active state, or from the secondary cell fast active state to the secondary cell active state, at least based on the MAC CE; and operating within the secondary cell fast active state or the secondary cell active state.

[0109] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining an RRC handover signal while operating in the secondary cell fast activation state, and continuing operation in the secondary cell fast activation state based on the RRC handover signal.

[0110] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining an RRC handover signal while operating in the secondary cell fast activation state, and switching to the secondary cell active state based on the RRC handover signal.

[0111] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining an RRC connection reconfiguration with an indication to release a secondary cell, releasing the secondary cell based on the RRC connection reconfiguration, and transitioning to an RRC connection state for the primary cell.

[0112] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in a secondary cell active state; obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast active state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; continuing to operate in the secondary cell active state when the first MAC CE indicates a transition out of the fast active state and when the second MAC CE indicates an entry into the secondary cell active state; and transitioning to the fast active state when the first MAC CE indicates a transition to the fast active state and when the second MAC CE indicates a transition to the secondary cell active state.

[0113] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in a fast activation state of a secondary cell; obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from the fast activation state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning to a secondary cell activation state when the first MAC CE indicates a transition out of the fast activation state, wherein the second MAC CE is ignored; and operating in the secondary cell activation state.

[0114] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning from a deactivated state to the active state of the secondary cell when the second MAC CE indicates a transition to the active state, or transitioning from the active state to the deactivated state when the second MAC CE indicates a transition out of the active state, wherein the first MAC CE is ignored; and operating in the active state or the deactivated state of the secondary cell.

[0115] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: obtaining a MAC CE from a network; transitioning from a secondary cell active state to a secondary cell fast active state based at least on the MAC CE; and operating in the secondary cell fast active state. In some aspects, the method further includes: obtaining an RRC handover signal while operating in the secondary cell fast active state, and continuing to operate in the secondary cell fast active state based on the RRC handover signal. In some aspects, the method further includes: obtaining an RRC handover signal while operating in the secondary cell fast active state, and switching to the secondary cell active state based on the RRC handover signal. In some aspects, the method further includes: obtaining a Radio Resource Control (RRC) connection reconfiguration with an indication to release the secondary cell, releasing the secondary cell based on the RRC connection reconfiguration, and transitioning to an RRC connection state for the primary cell.

[0116] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in a secondary cell active state; obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast active state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; and transitioning to the fast active state when the first MAC CE indicates a transition to the fast active state and when the second MAC CE indicates a transition to the secondary cell active state.

[0117] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in a fast activation state of a secondary cell; obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from the fast activation state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning to the secondary cell activation state when the first MAC CE indicates a transition out of the fast activation state and when the second MAC CE indicates a transition to the secondary cell activation state; transitioning to the secondary cell deactivation state when the first MAC CE indicates a transition out of the fast activation state and when the second MAC CE indicates a transition out of the secondary cell activation state; and operating in the secondary cell activation state or the secondary cell deactivation state.

[0118] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in a deactivated state of a secondary cell; obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast activated state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning to an activated state of the secondary cell based on the second MAC CE, wherein the first MAC CE is ignored; and operating in the activated state of the secondary cell.

[0119] In one example, a method for wireless communication is disclosed. The method can be performed by a scheduled entity (e.g., a user equipment (UE)). The method includes: operating in a secondary cell active state; obtaining at least a first MAC CE and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from a fast active state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transitioning to the fast active state of the secondary cell when the first MAC CE indicates a transition to the fast active state and when the second MAC CE indicates a transition to the secondary cell active state; transitioning to a secondary cell deactivation state when the first MAC CE indicates a transition out of the fast active state and when the second MAC CE indicates a transition out of the secondary cell active state; and operating in the fast active state or the secondary cell deactivation state.

[0120] In one example, an apparatus for wireless communication is disclosed. The apparatus includes at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus also includes a memory communicatively coupled to the at least one processor. The at least one processor is configured to: obtain a MAC CE from a network; transition from a secondary cell deactivation state or a secondary cell activation state to a secondary cell fast activation state based at least on the MAC CE; and operate at least in the secondary cell fast activation state. In some aspects, the at least one processor is further configured to: detect the expiration of a secondary cell deactivation timer or a handover of a secondary cell; transition to a secondary cell deactivation state in response to the detection or the handover; and operate in the secondary cell deactivation state. In some aspects, the at least one processor is further configured to: obtain an RRC handover signal while operating in the secondary cell fast activation state, and continue operating in the secondary cell activation state based on the RRC handover signal. In some aspects, the at least one processor is further configured to: obtain an RRC handover signal while operating in the secondary cell fast activation state, and transition to the secondary cell activation state based on the RRC handover signal. In some aspects, the at least one processor is further configured to: obtain an RRC connection reconfiguration with an indication to release the secondary cell, release the secondary cell based on the RRC connection reconfiguration, and transition to an RRC connection state for the primary cell.

[0121] In one example, an apparatus for wireless communication is disclosed. The apparatus includes at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus also includes a memory communicatively coupled to the at least one processor. The at least one processor is further configured to: detect the expiration of a reduced-power inactivity timer associated with a secondary cell when operating in a secondary cell active state, transition to a secondary cell fast active state in response to the detection, and operate in the secondary cell fast active state.

[0122] In one example, an apparatus for wireless communication is disclosed. The apparatus includes at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus also includes a memory communicatively coupled to the at least one processor. The at least one processor is configured to: operate in an RRC connection state for a primary cell, detect the addition of a secondary cell, directly transition to a secondary cell fast activation state in response to the detection, and operate at least in the secondary cell fast activation state.

[0123] In one example, an apparatus for wireless communication is disclosed. The apparatus includes at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus also includes a memory communicatively coupled to the at least one processor. The at least one processor is configured to: obtain at least a first MAC CE and a second MAC CE from a network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transition from a secondary cell deactivation state or a secondary cell activation state to the fast activation state based on the first MAC CE independent of the second MAC CE; and operate at least in the fast activation state.

[0124] In one example, an apparatus for wireless communication is disclosed. The apparatus includes at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus also includes a memory communicatively coupled to the at least one processor. The at least one processor is configured to: obtain at least a first MAC CE and a second MAC CE from a network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transition from the fast activation state to a secondary cell deactivation state or a secondary cell activation state based on the second MAC CE, wherein the first MAC CE indicates an exit from the fast activation state; and operate in the secondary cell deactivation state or the secondary cell activation state.

[0125] In one example, an apparatus for wireless communication is disclosed. The apparatus includes at least one processor and a transceiver communicatively coupled to the at least one processor. The apparatus also includes a memory communicatively coupled to the at least one processor. The at least one processor is configured to: obtain at least a first MAC CE and a second MAC CE from a network, wherein the first MAC CE controls the transition to / from a fast activation state of a secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell; transition from a deactivated state to an activated state based on the second MAC CE, or transition from an activated state to a deactivated state based on the second MAC CE, wherein the first MAC CE indicates an exit from a fast activation state; and operate in the activated state or the deactivated state.

[0126] These and other aspects of the invention will be more fully understood by reading the detailed description below. Other aspects, features, and embodiments of the invention will become apparent to those skilled in the art when read in conjunction with the accompanying drawings of specific, exemplary embodiments thereof. While features of the invention may be discussed with reference to certain embodiments and drawings below, all embodiments of the invention may include one or more of the advantageous features discussed herein. In other words, although one or more embodiments may be discussed as having certain advantageous features, one or more such features may also be used in conjunction with the various embodiments of the invention discussed herein. Similarly, while exemplary embodiments may be discussed below as embodiments of devices, systems, or methods, it should be understood that such exemplary embodiments may be implemented in various devices, systems, and methods. Detailed Implementation

[0127] The specific embodiments described below, in conjunction with the accompanying drawings, are intended as descriptions of various configurations and not as indicating the only configuration in which the concepts described herein can be practiced. Specific details are included to provide a comprehensive understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0128] While aspects and embodiments have been described in this application by way of example, those skilled in the art will understand that alternative implementations and use cases may arise in many different arrangements and scenarios. The innovations described herein can be implemented in many different platform types, devices, systems, shapes, sizes, and package arrangements. For example, embodiments and / or uses may occur via integrated chip embodiments and other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, AI-enabled devices, etc.). While some examples may or may not be specifically targeted at a particular use case or application, the broad applicability of the described innovations is possible. The range of implementations can extend from chip-level or modular components to non-modular, non-chip-level implementations, and further to aggregated, distributed, or OEM devices or systems incorporating one or more aspects of the described innovations. In some practical settings, devices incorporating the described aspects and features may also necessarily include additional components and features for the implementation and practice of the declared and described embodiments. For example, the transmission and reception of wireless signals necessarily involve multiple components (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.) for analog and digital purposes. It is hoped that the innovations described herein can be implemented in a wide variety of devices, chip-level components, systems, distributed arrangements, end-user devices, etc., with varying sizes, shapes, and constructions.

[0129] The aspects described in this article can be applied to wireless communication networks, such as 5G networks. For example, 5G networks can provide aggregation of carriers below 6 GHz, carriers above 6 GHz, millimeter-wave (mmWave) carriers, etc., all controlled by a single integrated MAC layer. This aggregation of carriers can be referred to as carrier aggregation (CA).

[0130] In some aspects of this disclosure, the wireless communication network may include a multi-RAT radio access network (MR-AN). For example, to implement an MR-AN, a single radio access network may provide one or more cells for each of multiple RATs and may support inter-RAT and intra-RAT mobility and aggregation.

[0131] The various concepts presented throughout this disclosure can be implemented in a wide variety of telecommunications systems, network architectures, and communication standards. Now refer to... Figure 1As a non-limiting illustrative example, reference is made to wireless communication system 100, illustrating various aspects of this disclosure. Wireless communication system 100 includes three interaction domains: core network 102, radio access network (RAN) 104, and user equipment (UE) 106. With the aid of wireless communication system 100, UE 106 can communicate data with external data network 110 (such as, but not limited to, the Internet).

[0132] RAN 104 can implement any suitable wireless communication technology to provide radio access to UE 106. As an example, RAN 104 can operate according to the 3rd Generation Partnership Project (3GPP) New Radio (NR) specification, commonly referred to as 5G. As another example, RAN 104 can operate in a hybrid of 5G NR and the Evolved Universal Terrestrial Radio Access Network (eUTRAN) standard, commonly referred to as LTE. 3GPP refers to this hybrid RAN as Next Generation RAN or NG-RAN. Of course, many other examples can be used within the scope of this disclosure.

[0133] As shown in the figure, RAN 104 includes multiple base stations 108. Broadly speaking, a base station is a network element in a radio access network responsible for transmitting data to or from a UE within one or more cells. In different technologies, standards, or contexts, a base station may also be referred to by those skilled in the art as a base transceiver unit (BTS), radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), access point (AP), node B (NB), e-node B (eNB), g-node B (gNB), or some other suitable term.

[0134] A radio access network 104 supporting wireless communication for multiple mobile devices is also illustrated. Mobile devices are typically referred to as User Equipment (UE) in 3GPP standards, but may also be referred to by those skilled in the art as Mobile Station (MS), User Station, Mobile Unit, User Unit, Radio Unit, Remote Unit, Mobile Device, Radio Device, Wireless Device, Wireless Communication Device, Remote Device, Mobile Subscriber Station, Access Terminal (AT), Mobile Terminal, Wireless Terminal, Remote Terminal, Handheld Device, Terminal, User Agent, Mobile Client, Client, or any other suitable term. A UE can be a device that provides users with access to network services.

[0135] In this document, a “mobile” device does not necessarily have the ability to move and can be stationary. The term mobile device or mobile device refers to a wide variety of devices and technologies. A UE may include multiple hardware structural components of different sizes, shapes, and arrangements to facilitate communication; such components may include antennas, antenna arrays, RF chains, amplifiers, one or more processors, etc., electrically coupled to each other. For example, some non-limiting examples of mobile devices include mobile phones, cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal computers (PCs), notebook computers, netbooks, smartbooks, tablets, personal digital assistants (PDAs), and a wide variety of embedded systems (e.g., corresponding to the “Internet of Things” (IoT)). A mobile device can also be an automobile or other transport vehicle, a remote sensor or actuator, a robot or robotic device, a satellite radio, a Global Positioning System (GPS) device, an object tracking device, a drone, a multi-rotor aircraft, a quadcopter, a remote control device, a consumer device and / or a wearable device, such as glasses, wearable cameras, virtual reality devices, smartwatches, health or fitness trackers, digital audio players (e.g., MP3 players), cameras, game consoles, etc. Mobile devices can also be digital home or smart home devices, such as home audio, video and / or multimedia equipment, appliances, vending machines, smart lighting, home security systems, smart meters, etc. Mobile devices can also be smart energy devices, security devices, solar panels or solar arrays, municipal infrastructure equipment controlling electricity (e.g., smart grids), lighting, water, etc.; industrial automation and enterprise equipment; logistics controllers; agricultural equipment; military defense equipment, vehicles, aircraft, ships, and weapons, etc. Furthermore, mobile devices can provide connected medical or telemedicine support, i.e., remote healthcare. Telemedicine devices can include telemedicine monitoring devices and telemedicine management devices, whose communications can be given priority or access rights over other types of information, for example, priority access to the transmission of critical service data and / or related QoS aspects of critical service data transmission.

[0136] Wireless communication between RAN 104 and UE 106 can be described as utilizing an air interface. Transmissions via the air interface from a base station (e.g., base station 108) to one or more UEs (e.g., UE 106) can be referred to as downlink (DL) transmissions. According to certain aspects of this disclosure, the term downlink can refer to point-to-multipoint transmissions initiated at a scheduling entity (further described below, e.g., base station 108). Another way to describe this scheme is to use the term broadcast channel multiplexing. Transmissions from a UE (e.g., UE 106) to a base station (e.g., base station 108) can be referred to as uplink (UL) transmissions. According to other aspects of this disclosure, the term uplink can refer to point-to-point transmissions initiated at a scheduled entity (further described below; e.g., UE 106).

[0137] In some examples, access to the air interface can be scheduled, where a scheduling entity (e.g., base station 108) allocates resources for communication between some or all devices and apparatuses within its service area or cell. Within this disclosure, as further discussed below, the scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more scheduled entities. That is, for scheduled communication, UE 106 (which may be a scheduled entity) can use the resources allocated by scheduling entity 108.

[0138] Base station 108 is not the only entity that can be used as a scheduling entity. That is, in some examples, a UE can be used as a scheduling entity to schedule resources for one or more scheduled entities (e.g., one or more other UEs).

[0139] like Figure 1 As shown, scheduling entity 108 can broadcast downlink service 112 to one or more scheduled entities 106. In summary, scheduling entity 108 is a node or device responsible for scheduling services in the wireless communication network, including downlink service 112 and (in some examples) uplink service 116 from one or more scheduled entities 106 to scheduling entity 108. On the other hand, scheduled entity 106 is a node or device that receives downlink control information 114, which includes, but is not limited to, scheduling information (e.g., grants), synchronization or timing information, or other control information from another entity in the wireless communication network (such as scheduling entity 108).

[0140] Typically, base station 108 may include a backhaul interface for communicating with the backhaul section 120 of a wireless communication system. Backhaul 120 provides a link between base station 108 and core network 102. Furthermore, in some examples, the backhaul network can provide interconnection between the individual base stations 108. Various types of backhaul interfaces can be employed, such as direct physical connections using any suitable transport network, virtual networks, etc.

[0141] Core network 102 may be part of wireless communication system 100 and may be independent of the radio access technology used in RAN 104. In some examples, core network 102 may be configured according to 5G standards (e.g., 5GC). In other examples, core network 102 may be configured according to 4G Evolved Packet Core (EPC) or any other suitable standard or configuration.

[0142] Now refer to Figure 2 A schematic diagram of RAN 200 is provided by way of example rather than limitation. In some examples, RAN 200 can be described above and... Figure 1 The same as RAN 104 shown. The geographical area covered by RAN 200 can be divided into cellular areas (cells) that can be uniquely identified by user equipment (UE) based on an identifier broadcast from an access point or base station. Figure 2 Macro cells 202, 204, and 206, and small cell 208 are shown, each of which may include one or more sectors (not shown). A sector is a sub-area of ​​a cell. All sectors within a cell are served by the same base station. Radio links within a sector can be identified by a single logical identifier belonging to that sector. In a cell divided into multiple sectors, multiple sectors within the cell can be formed using antenna groups, where each antenna is responsible for communication with UEs in a portion of the cell.

[0143] exist Figure 2In the illustration, two base stations 210 and 212 are shown in cells 202 and 204; and a third base station 214 is shown controlling the Remote Radio Header (RRH) 216 in cell 206. That is, the base station can have an integrated antenna, or it can be connected to an antenna or RRH via a feed cable. In the illustrated example, cells 202, 204, and 216 can be referred to as macro cells when base stations 210, 212, and 214 support cells with large sizes. Furthermore, base station 218 is shown in a small cell 208 (e.g., microcell, picocell, femtocell, home base station, home node B, home eNodeB, etc.) that may overlap with one or more macro cells. In this example, cell 208 can be referred to as a small cell because base station 218 supports cells with relatively small sizes. Cell size adjustments can be made according to system design and component constraints.

[0144] It should be understood that the wireless access network 200 may include any number of wireless base stations and cells. Furthermore, relay nodes can be deployed to extend the size or coverage area of ​​a given cell. Base stations 210, 212, 214, and 218 provide wireless access points to the core network for any number of mobile devices. In some examples, base stations 210, 212, 214, and / or 218 may be used in conjunction with those described above and Figure 1 The base station / scheduling entity 108 shown is the same.

[0145] Figure 2 It also includes quadcopters or drones 220, which can be configured to be used as base stations. That is, in some cases, the cell may not necessarily be stationary, and the geographical area of ​​the cell can move depending on the location of the mobile base station (such as the quadcopter 220).

[0146] Within RAN 200, a cell may include UEs capable of communicating with one or more sectors of each cell. Additionally, each base station 210, 212, 214, 218, and 220 may be configured to provide access to the core network 102 (see [link to core network]) to all UEs within each cell. Figure 1 Access points. For example, UE 222 and UE 224 can communicate with base station 210; UE 226 and UE 228 can communicate with base station 212; UE 230 and UE 232 can communicate with base station 214 via RRH 216; UE 234 can communicate with base station 218; and UE 236 can communicate with mobile base station 220. In some examples, UEs 222, 224, 226, 228, 230, 232, 234, 236, 238, 240 and / or 242 can communicate with the access points described above and... Figure 1 The UE / scheduled entity 106 shown is the same.

[0147] In some examples, a mobile network node (e.g., quadcopter 220) can be configured to act as a UE. For example, quadcopter 220 can operate within cell 202 by communicating with base station 210.

[0148] In a further example of RAN 200, sidelink signaling can be used between UEs without relying on scheduling or control information from a base station. For example, two or more UEs (e.g., UE 226 and UE 228) can communicate with each other using peer-to-peer (P2P) or sidelink signaling 227 without relaying the communication through a base station (e.g., base station 212). In another example, UE 238 is shown communicating with UEs 240 and 242. Here, UE 238 can act as a scheduling entity or a primary sidelink device, and UEs 240 and 242 can act as scheduled entities or non-primary (e.g., secondary) sidelink devices. In yet another example, a UE can act as a scheduling entity in a device-to-device (D2D), peer-to-peer (P2P), or vehicle-to-vehicle (V2V) network and / or a mesh network. In the mesh network example, in addition to communicating with scheduling entity 238, UEs 240 and 242 can optionally communicate directly with each other. Therefore, in a wireless communication system with scheduled time-frequency resource access and with cellular, P2P, or mesh configurations, a scheduling entity and one or more scheduled entities can use the scheduled resources to communicate.

[0149] In a radio access network 200, the ability of a UE to communicate independently of its location while moving is referred to as mobility. This is typically addressed in the Access and Mobility Management Function (AMF, not shown). Figure 1 Under the control of the core network 102 (part of the core network), the AMF establishes, maintains and releases various physical channels between the UE and the radio access network. The AMF may include the Security Context Management Function (SCMF) for managing the security context for both control plane and user plane functions, and the Security Anchor Function (SEAF) for performing authentication.

[0150] In various aspects of this disclosure, the radio access network 200 may use DL-based mobility or UL-based mobility to achieve mobility and handover (i.e., transferring the UE's connection from one radio channel to another). In a network configured for DL-based mobility, during a call with a scheduling entity or at any other time, the UE may monitor various parameters of the signal from its serving cell and various parameters of neighboring cells. Depending on the quality of these parameters, the UE may maintain communication with one or more neighboring cells. During this period, if the UE moves from one cell to another, or if the signal quality from a neighboring cell exceeds the signal quality from the serving cell for a given amount of time, the UE may perform a handover or handover from the serving cell to a neighboring (target) cell. For example, UE 224 (shown as a vehicle, although any suitable form of UE may be used) may move from a geographic area corresponding to its serving cell 202 to a geographic area corresponding to a neighboring cell 206. When the signal strength or quality from neighboring cell 206 exceeds the signal strength or quality from its serving cell 202 for a given amount of time, UE 224 may send a report message indicating this situation to its serving base station 210. In response, UE 224 can receive a handover command and the UE can undergo a handover to cell 206.

[0151] In a network configured for UL-based mobility, the UL reference signal from each UE can be used by the network to select a serving cell for each UE. In some examples, base stations 210, 212, and 214 / 216 can broadcast uniform synchronization signals (e.g., a uniform primary synchronization signal (PSS), a uniform secondary synchronization signal (SSS), and a uniform physical broadcast channel (PBCH)). UEs 222, 224, 226, 228, 230, and 232 can receive the uniform synchronization signal, derive the carrier frequency and time slot timing from the synchronization signal, and transmit uplink pilots or reference signals in response to the derived timing. The uplink pilot signal transmitted by a UE (e.g., UE 224) can be simultaneously received by two or more cells (e.g., base stations 210 and 214 / 216) within the radio access network 200. Each cell in the aforementioned cells can measure the strength of the pilot signal, and the radio access network (e.g., one or more of base stations 210 and 214 / 216 and / or a central node within the core network) can determine the serving cell for UE 224. As UE 224 moves through radio access network 200, the network can continue to monitor the uplink pilot signal transmitted by UE 224. When the signal strength or quality of the pilot signal measured by a neighboring cell exceeds the signal strength or quality measured by the serving cell, network 200 can, with or without notification to UE 224, switch UE 224 from the serving cell to a neighboring cell.

[0152] Although the synchronization signals transmitted by base stations 210, 212, and 214 / 216 can be uniform, the synchronization signals do not need to identify a specific cell. Instead, they can identify an area of ​​multiple cells operating on the same frequency and / or using the same timing operation. This use of areas in 5G networks or other next-generation communication networks enables an uplink-based mobility framework and improves the efficiency of both the UE and the network by reducing the number of mobility messages that need to be exchanged between the UE and the network.

[0153] In various implementations, the air interface in the radio access network 200 can use licensed spectrum, unlicensed spectrum, or shared spectrum. Licensed spectrum, typically licensed by mobile network operators from government regulatory agencies, provides exclusive use of a portion of the spectrum. Unlicensed spectrum, which does not require government authorization, provides shared use of a portion of the spectrum. While some technical rules are usually still required for access to unlicensed spectrum, access is generally available to any operator or device. Shared spectrum may fall between licensed and unlicensed spectrum, where technical rules or restrictions may be required for access, but the spectrum can still be shared by multiple operators and / or multiple RATs. For example, a licensee of a portion of licensed spectrum can provide a licensed shared access (LSA) to share the spectrum with other parties, for example, under appropriate conditions determined by the licensee.

[0154] In some examples, scheduled entities (such as first scheduled entity 204a and second scheduled entity 204b) can perform direct D2D communication using sidelink signals. Sidelink signals may include sidelink traffic 214 and sidelink control 216. In some examples, sidelink control information 216 may include request signals such as Request to Send (RTS), Source Send Signal (STS), and / or Direction Selection Signal (DSS). The request signal can provide that scheduled entity 204 requests the duration for which a sidelink channel is available for sidelink signaling. Sidelink control information 216 may also include response signals such as Clear Send (CTS) and / or Destination Receive Signal (DRS). The response signal can provide that scheduled entity 204 indicates the availability of the sidelink channel (e.g., for the requested duration). The exchange of request and response signals (e.g., a handshake) allows different scheduled entities performing sidelink communication to negotiate the availability of the sidelink channel before the transmission of sidelink traffic information 214.

[0155] The air interface in the wireless access network 200 can use one or more duplex algorithms. Duplex refers to a point-to-point communication link in which two endpoints can communicate with each other in both directions. Full-duplex means that both endpoints can communicate with each other simultaneously. Half-duplex means that only one endpoint can send information to the other endpoint at any given time. In a wireless link, a full-duplex channel typically relies on physical isolation between the transmitter and receiver, as well as appropriate interference cancellation techniques. Full-duplex simulation of a wireless link is often implemented using Frequency Division Duplex (FDD) or Time Division Duplex (TDD). In FDD, transmissions in different directions operate on different carrier frequencies. In TDD, time division multiplexing is used to separate transmissions in different directions on a given channel. That is, at some times, the channel is dedicated to transmission in one direction, and at other times, the channel is dedicated to transmission in the other direction, where the direction can change very rapidly, for example, several times per time slot.

[0156] To achieve a low block error rate (BLER) while still maintaining a very high data rate on the wireless access network 200, channel coding can be used. That is, wireless communication typically uses appropriate error-correcting block codes. In a typical block code, the information message or sequence is divided into code blocks (CBs), and the encoder (e.g., codec) at the transmitting device then mathematically adds redundancy to the information message. Utilizing this redundancy in the encoded information message improves message reliability, thereby enabling the correction of any bit errors that may occur due to noise.

[0157] In the 5G NR specification, user data is encoded using quasi-cyclic low-density parity-check (LDPC) with two different base graphs: one base graph for large code blocks and / or high code rates, and the other for other cases. Control information and the Physical Broadcast Channel (PBCH) are encoded using nested sequence-based polar coding. For these channels, puncturing, shortening, and repetition are used for rate matching.

[0158] However, those skilled in the art will understand that any suitable channel code can be used to implement aspects of this disclosure. Various implementations of the scheduling entity 108 and the scheduled entity 106 may include suitable hardware and capabilities (e.g., encoders, decoders, and / or codecs) for using one or more of these channel codes to perform wireless communication.

[0159] The air interface in the radio access network 200 can use one or more multiplexing and multiple access algorithms to enable simultaneous communication of various devices. For example, the 5G NR specification provides multiple access for UL transmissions from UEs 222 and 224 to base station 210, and multiplexing of DL transmissions from base station 210 to one or more UEs 222 and 224 using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP). Additionally, for UL transmissions, the 5G NR specification provides support for Discrete Fourier Transform-Extended-OFDM (DFT-s-OFDM) with CP (also known as Single-Carrier FDMA (SC-FDMA)). However, within the scope of this disclosure, multiplexing and multiple access are not limited to the above schemes, and can be provided using Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Sparse Code Multiple Access (SCMA), Resource Extended Multiple Access (RSMA), or other suitable multiple access schemes. Alternatively, Time Division Multiplexing (TDM), Code Division Multiplexing (CDM), Frequency Division Multiplexing (FDM), Orthogonal Frequency Division Multiplexing (OFDM), Sparse Code Multiplexing (SCM) or other suitable multiplexing schemes can be used to provide multiplexing for DL ​​transmission from base station 210 to UE 222 and UE 224.

[0160] Reference Figure 3 The OFDM waveforms illustrated herein are used to describe various aspects of this disclosure. Those skilled in the art should understand that various aspects of this disclosure can be applied to DFT-s-OFDMA waveforms in substantially the same manner as described below. That is, although some examples of this disclosure may focus on OFDM links for clarity, it should be understood that the same principles can also be applied to DFT-s-OFDMA waveforms.

[0161] Within this disclosure, a frame refers to a 10ms duration used for wireless transmission, where each frame consists of 10 subframes, each lasting 1ms. On a given carrier, there may be one set of frames in the UL and another set in the DL. Now refer to Figure 3 An extended view of an exemplary DL subframe 302 is shown, which illustrates an OFDM resource grid 304. However, as those skilled in the art will readily recognize, the PHY transmission structure for any particular application can differ from the example described herein based on any number of factors. Here, time is in OFDM symbols in the horizontal direction; and frequency is in subcarriers or tones in the vertical direction.

[0162] Resource grid 304 can be used to schematically represent time-frequency resources for a given antenna port. That is, in a MIMO implementation with multiple antenna ports available, the corresponding multiple resource grids 304 can be available for communication. Resource grid 304 is divided into multiple resource elements (REs) 306. An RE (which is 1 subcarrier × 1 symbol) is the smallest discrete part of the time-frequency grid and contains a single complex value representing data from a physical channel or signal. Depending on the modulation used in a particular implementation, each RE can represent one or more bits of information. In some examples, the RE block can be referred to as a physical resource block (PRB), or more simply as a resource block (RB) 308, which contains any suitable number of consecutive subcarriers in the frequency domain. In one example, an RB can include 12 subcarriers, which is a number independent of the digital scheme used. In some examples, depending on the digital scheme, an RB can include any suitable number of consecutive OFDM symbols in the time domain. Within this disclosure, it is assumed that a single RB (such as RB 308) corresponds exactly to a single communication direction (transmission or reception for a given device).

[0163] UEs typically use only a subset of resource grid 304. An RB can be the smallest unit of resource that can be allocated to a UE. Therefore, the more RBs scheduled for a UE and the more sophisticated the modulation scheme selected for the air interface, the higher the data rate available to the UE.

[0164] In this illustration, RB 308 is shown occupying less than the entire bandwidth of subframe 302, with some subcarriers shown above and below RB 308. In a given implementation, subframe 302 can have a bandwidth corresponding to any number of one or more RB 308s. Furthermore, in this illustration, RB 308 is shown occupying less than the entire duration of subframe 302, although this is merely one possible example.

[0165] Each 1ms subframe 302 can consist of one or more adjacent time slots. Figure 3 In the example shown, as an illustrative example, a subframe 302 includes four time slots 310. In some examples, time slots can be defined based on a specified number of OFDM symbols with a given cyclic prefix (CP) length. For example, a time slot may include 7 or 14 OFDM symbols with a nominal CP. Other examples may include mini-time slots with shorter durations (e.g., one or two OFDM symbols). These mini-time slots may, in some cases, occupy resources scheduled for ongoing time slot transmissions for the same or different UEs for transmission.

[0166] An expanded diagram of a time slot 310 shows a time slot 310 comprising a control region 312 and a data region 314. Typically, the control region 312 may carry a control channel (e.g., PDCCH), and the data region 314 may carry a data channel (e.g., PDSCH or PUSCH). Of course, a time slot may contain all DL, all UL, or at least one DL portion and at least one UL portion. Figure 3 The simple structure shown is merely exemplary in nature, and different time slot structures can be used, and may include one or more regions of each of the control region and the data region.

[0167] Despite Figure 3 Not shown, but various REs 306 within RB 308 can be scheduled to carry one or more physical channels, including control channels, shared channels, data channels, etc. Other REs 306 within RB 308 can also carry pilot or reference signals, including but not limited to demodulation reference signals (DMRS), control reference signals (CRS), or sounding reference signals (SRS). These pilot or reference signals can provide channel estimation for the corresponding channels, enabling coherent demodulation / detection of control and / or data channels within RB 308.

[0168] In DL transmission, a transmitting device (e.g., scheduling entity 108) may allocate one or more REs 306 (e.g., within control area 312) to carry DL control information 114, including one or more DL control channels, to one or more scheduled entities 106. This information typically carries information originating from higher layers (e.g., Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), etc.). Additionally, DL REs may be allocated to carry DL physical signals that do not typically carry information originating from higher layers. These DL physical signals may include a primary synchronization signal (PSS); a secondary synchronization signal (SSS); a demodulation reference signal (DM-RS); a phase tracking reference signal (PT-RS); a channel state information reference signal (CSI-RS), etc.

[0169] Synchronization signals PSS and SSS (collectively referred to as SS), as well as (in some examples) PBCH, can be transmitted in an SS block comprising four consecutive OFDM symbols numbered in ascending order from 0 to 3 via time indexing. In the frequency domain, the SS block can extend to more than 240 consecutive subcarriers, where the subcarriers are numbered in ascending order from 0 to 239 via frequency indexing. Of course, this disclosure is not limited to this particular SS block configuration. Within the scope of this disclosure, other non-limiting examples may use more or fewer synchronization signals; one or more supplementary channels may be included in addition to PBCH; PBCH may be omitted; and / or non-consecutive symbols may be used for the SS block.

[0170] The PDCCH can carry downlink control information (DCI) for one or more UEs in the cell, including but not limited to power control commands, scheduling information, authorizations and / or assignments of REs for DL ​​and UL transmissions.

[0171] In UL transmission, the transmitting device (e.g., the scheduled entity 106) can use one or more REs 306 to carry UL control information 118 originating from higher layers to the scheduling entity 108 via one or more UL control channels (such as the Physical Uplink Control Channel (PUCCH), Physical Random Access Channel (PRACH), etc.). Furthermore, the UL REs can carry UL physical signals that typically do not carry information originating from higher layers, such as demodulation reference signals (DM-RS), phase tracking reference signals (PT-RS), sounding reference signals (SRS), etc. In some examples, the control information 118 may include a scheduling request (SR), i.e., a request to the scheduling entity 108 to schedule uplink transmissions. Here, in response to an SR transmitted on control channel 118, the scheduling entity 108 can send downlink control information 114, which can schedule resources for uplink packet transmissions. The UL control information may also include hybrid automatic repeat request (HARQ) feedback, such as acknowledgment (ACK) or negative acknowledgment (NACK), channel state information (CSI), or any other suitable UL control information. HARQ is a technique well-known to those skilled in the art, in which the integrity of packet transmissions can be checked at the receiving side to ensure accuracy, for example, using any suitable integrity checking mechanism, such as checksums or cyclic redundancy check (CRC). If the integrity of the transmission is confirmed, an ACK can be sent; otherwise, a NACK can be sent. In response to a NACK, the transmitting device can send a HARQ retransmission, which can implement catch-up reassembly, incremental redundancy, etc.

[0172] In addition to control information, one or more RE 306s can be allocated for user data or service data (e.g., within data area 314). This service can be carried on one or more service channels, such as the Physical Downlink Shared Channel (PDSCH) for DL ​​transmission or the Physical Uplink Shared Channel (PUSCH) for UL transmission.

[0173] To enable a UE to gain initial access to a cell, the RAN can provide system information (SI) characterizing the cell. This system information can be provided using Minimal System Information (MSI) and Other System Information (OSI). MSIs can be periodically broadcast on the cell to provide the most basic information required for initial cell access, as well as any OSIs that can be broadcast periodically or sent on demand. In some examples, MSIs can be provided on two different downlink channels. For example, the PBCH can carry a Master Information Block (MIB), and the PDSCH can carry System Information Block Type 1 (SIB1). In this art, SIB1 may be referred to as Residual Minimal System Information (RMSI).

[0174] OSI can include any SI that is not broadcast in MSI. In some examples, PDSCH can carry multiple SIBs, not limited to SIB1 discussed above. In this paper, OSI can be provided in these SIBs (e.g., SIB2 and above).

[0175] The above description and Figure 1 and Figure 3 The channels or carriers shown are not necessarily all the channels or carriers that can be used between the scheduling entity 108 and the scheduled entity 106, and those skilled in the art will recognize that other channels or carriers (such as other service, control and feedback channels) may be used in addition to those shown.

[0176] These physical channels are typically multiplexed and mapped to transport channels for processing at the Media Access Control (MAC) layer. The transport channels carry blocks of information called transport blocks (TBs). The transport block size (TBS), which can correspond to the number of bits of information, can be a controlled parameter based on the modulation and coding scheme (MCS) and the number of redundancies (RBs) in a given transmission.

[0177] Figure 4 This is a block diagram illustrating an example hardware implementation of a scheduling entity 400 using processing system 414. For example, scheduling entity 400 could be as follows: Figure 1 , Figure 2 and / or Figure 3 One or more base stations shown in the figures.

[0178] The scheduling entity 400 may be implemented using a processing system 414 including one or more processors 404. Examples of processors 404 include microprocessors, microcontrollers, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuitry, and other suitable hardware configured to perform the various functions described throughout this disclosure. In various examples, the scheduling entity 400 may be configured to perform any one or more of the functions described herein. That is, the processor 404 (as used in the scheduling entity 400) may be used to implement any one or more of the processes and flows described herein.

[0179] In this example, the processing system 414 can be implemented using a bus architecture (typically represented by bus 402). Bus 402 may include any number of interconnect buses and bridges, depending on the specific application of the processing system 414 and the overall design constraints. Bus 402 communicatively couples various circuits, including one or more processors (typically represented by processor 404), memory 405, and computer-readable media (typically represented by computer-readable media 406). Bus 402 may also link together various other circuits such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and will not be described further. Bus interface 408 provides an interface between bus 402 and transceiver 410. Transceiver 410 provides a communication interface or a unit for communicating with various other devices over a transmission medium. Depending on the characteristics of the device, a user interface 412 (e.g., keyboard, display, speaker, microphone, joystick) may also be provided. Of course, such a user interface 412 is optional and may be omitted in some examples (such as base stations).

[0180] In some aspects of this disclosure, processor 404 may include MAC CE transmitting circuitry 440, configured for various functions, including, for example, transmitting MAC CE to a scheduled entity. In some aspects, MAC CE may be configured to indicate any one of a plurality of state transition actions for the secondary cell. In some aspects, MAC CE may be configured to indicate any one of a plurality of state transition actions for the secondary cell, independent of the current operational state of the secondary cell.

[0181] Processor 404 is responsible for managing bus 402 and general processing, including executing software stored on computer-readable medium 406. When processor 404 executes the software, it causes processing system 414 to perform various functions specific to any given device. Computer-readable medium 406 and memory 405 may also be used to store data manipulated by processor 404 while executing the software.

[0182] One or more processors 404 in the processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, software should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, application programs, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc. Software may reside on computer-readable medium 406. Computer-readable medium 406 may be a non-transitory computer-readable medium. For example, non-transitory computer-readable media include magnetic storage devices (e.g., hard disks, floppy disks, magnetic tapes), optical disks (e.g., compact discs (CDs) or digital versatile discs (DVDs)), smart cards, flash memory devices (e.g., card, stick, or key drives), random access memory (RAM), read-only memory (ROM), programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), registers, removable disks, and any other suitable medium for storing software and / or instructions that can be accessed and read by a computer. Computer-readable medium 406 may be located within, outside, or distributed across multiple entities including processing system 414. Computer-readable medium 406 may be embodied in a computer program product. For example, a computer program product may include a computer-readable medium within packaging material. Those skilled in the art will recognize how the functionality described throughout this disclosure can be optimally implemented, depending on the specific application and the overall design constraints imposed on the system.

[0183] In one or more examples, computer-readable storage medium 406 may include MAC CE transmitting software 450 configured for various functions, including, for example, transmitting MAC CE to a scheduled entity. In some aspects, MAC CE may be configured to indicate any one of a plurality of state transition actions for the secondary cell. In some aspects, MAC CE may be configured to indicate any one of a plurality of state transition actions for the secondary cell, independent of the current operational state of the secondary cell.

[0184] Figure 5 This is a conceptual diagram illustrating an example hardware implementation of an exemplary scheduled entity 500 using a processing system 514. According to various aspects of this disclosure, an element, any part of an element, or any combination of elements can be implemented using a processing system 514 including one or more processors 504. For example, the scheduled entity 500 can be as follows: Figure 1 and / or Figure 2 Any one or more of the user equipment (UE) shown in the figure.

[0185] Processing system 514 can be with Figure 4 The processing system 414 shown is substantially the same as that described above, and includes: a bus interface 508, a bus 502, a memory 505, a processor 504, and a computer-readable medium 506. Additionally, the scheduled entity 500 may include components similar to those described above. Figure 4 The user interface 512 and transceiver 510 described herein are substantially similar. That is, the processor 504 (as used in the scheduled entity 500) can be used to implement the following and Figures 23-42 The process shown in the diagram can be any one or more of the following processes.

[0186] In some aspects of this disclosure, processor 504 may include MAC CE acquisition circuitry 540, configured for various functions, including, for example, acquiring a MAC CE from a network. In some aspects, the MAC CE may be configured to indicate any one of a plurality of state transition actions for the secondary cell. In some aspects, the MAC CE may be configured to indicate any one of a plurality of state transition actions for the secondary cell, independent of the current operating state of the secondary cell. In some aspects of this disclosure, the MAC CE may be configured to control the activation and deactivation of the secondary cell. In some aspects of this disclosure, MAC CE acquisition circuitry 540 may be configured for various functions, including, for example, acquiring a second MAC CE from a network in a subframe. In some aspects of this disclosure, MAC CE acquisition circuitry 540 may be configured for various functions, including, for example, acquiring a first MAC CE and a second MAC CE from a network. The first and second MAC CEs may be configured to indicate one of a plurality of state transition actions for the secondary cell. The first MACCE can be configured to control the transition to (or from) a secondary cell dormant state, and the second MACCE can be configured to control the activation and deactivation of the secondary cell. For example, the MACCE acquisition circuit 540 can be configured to implement the following... Figures 23-25 , Figures 28-38 One or more of the described functions include, for example, blocks 2302, 2402, 2502, 2802, 2902, 3002, 3102, 3202, 3302, 3402, 3502, 3602, 3702 and / or 3802.

[0187] In some aspects of this disclosure, processor 504 may include state transition circuitry 542 configured for various functions, including, for example, transitioning to a secondary cell fast activation state (also referred to as a secondary cell dormant state) when a state transition action indicated by MAC CE includes a transition to a secondary cell fast activation state. It should be noted that the terms secondary cell fast activation state and secondary cell dormant state are used interchangeably in this disclosure. In some aspects of this disclosure, state transition circuitry 542 may be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell fast activation state (also referred to as a secondary cell dormant state) when a state transition action indicated by MAC CE includes a transition to a secondary cell fast activation state. In some aspects of this disclosure, state transition circuitry 542 may be configured for various functions, including, for example, transitioning from a secondary cell fast activation state to a secondary cell active state when a state transition action indicated by MAC CE includes a transition to a secondary cell active state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell fast active state, or vice versa, at least based on MAC CE.

[0188] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state or a secondary cell deactivated state to a secondary cell dormant state when the first MAC CE includes an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state or a secondary cell deactivated state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell deactivated state or a secondary cell active state to a secondary cell fast active state, at least based on the MAC CE.

[0189] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell sleep state to a secondary cell active state when the first MAC CE does not include an indication to transition to a secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell active state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell sleep state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to a secondary cell sleep state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state or a secondary cell fast activation state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state.

[0190] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state or a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state to a secondary cell active state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state or a secondary cell activation state to a fast activation state based on a first MAC CE independent of the second MAC CE. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a fast activation state to a secondary cell deactivation state or a secondary cell activation state based on a second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state to a secondary cell activation state based on a second MAC CE; or transitioning from a secondary cell activation state to a secondary cell deactivation state based on a second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state.

[0191] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state.

[0192] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state or a secondary cell fast activation state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell dormant state to a secondary cell deactivation state when the MAC CE includes an indication to transition to a secondary cell deactivation state.

[0193] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell fast activation state (also known as a secondary cell dormant state) to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state.

[0194] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell sleep state to a secondary cell deactivation state when a secondary cell deactivation timer expires. In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell sleep state when a secondary cell inactivity timer expires.

[0195] In some aspects of this disclosure, the state transition circuit 542 can be configured for various functions, including, for example, directly transitioning to a secondary cell active state or a secondary cell dormant state based on an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state.

[0196] For example, the state transition circuit 542 can be configured to implement the following regarding Figures 23-37 , Figure 39 , Figure 41 and Figure 42 One or more of the described functions include, for example, blocks 2304, 2404, 2406, 2504, 2604, 2706, 2804, 2904, 3004, 3104, 3204, 3304, 3404, 3504, 3604, 3606, 3704, 3706, 3904, 4104 and / or 4206.

[0197] In some aspects of this disclosure, processor 504 may include operation state circuitry 544, configured for various functions, including, for example, operation in a secondary cell fast activation state (also known as a secondary cell dormant state). In some aspects of this disclosure, operation state circuitry 544 may be configured for various functions, including, for example, operation in a secondary cell active state based on a transition to a secondary cell active state, or operation in a secondary cell deactivation state based on a transition to a secondary cell deactivation state. In some aspects of this disclosure, operation state circuitry 544 may be configured for various functions, including, for example, operation in a secondary cell deactivation state. In some aspects of this disclosure, operation state circuitry 544 may be configured for various functions, including, for example, operation in a secondary cell active state. In some aspects of this disclosure, operation state circuitry 544 may be configured for various functions, including, for example, operation in a secondary cell fast activation state (also known as a secondary cell dormant state).

[0198] In some aspects of this disclosure, the operation state circuit 544 can be configured for various functions, including, for example, operating in a secondary cell fast activation state (also known as a secondary cell dormant state) based on a transition to a secondary cell fast activation state, or operating in a secondary cell active state based on a transition to a secondary cell active state. In some aspects of this disclosure, the operation state circuit 544 can be configured for various functions, including, for example, operating in an RRC connection state for a primary cell. For example, the operation state circuit 544 can be configured to implement the following description... Figures 23-37 One or more of the described functions include, for example, blocks 2306, 2408, 2506, 2606, 2702, 2708, 2806, 2906, 3006, 3106, 3206, 3306, 3406, 3506, 3608 and / or 3708.

[0199] In some aspects of this disclosure, processor 504 may include message receiving circuitry 546 configured for various functions, including, for example, receiving RRC connection reconfiguration messages. In some aspects, the RRC connection reconfiguration message may include an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state. In other aspects, the RRC connection reconfiguration message may include an indication to release a secondary cell. For example, message receiving circuitry 546 may be configured to implement the following description... Figure 39 and Figure 40 One or more of the functions described include, for example, blocks 3902 and 4002.

[0200] In some aspects of this disclosure, processor 504 may include LCID value acquisition circuitry 544, configured for various functions, including, for example, acquiring an LCID value indicating whether the MAC CE is a fast-activated / deactivated MAC CE, wherein the fast-activated / deactivated MAC CE supports a two-octet format or an eight-octet format. In some aspects of this disclosure, LCID value acquisition circuitry 548 may be configured for various functions, including, for example, acquiring a first LCID value indicating whether the MAC CE is a hibernation-activated / deactivated MAC CE based on an eight-octet format, or acquiring a second LCID value indicating whether the MAC CE is a hibernation-activated / deactivated MAC CE based on a four-octet format. For example, LCID value acquisition circuitry 548 may be configured to implement the following... Figure 38 One or more of the functions described, including, for example, block 3804.

[0201] In some aspects of this disclosure, processor 504 may include octet format determination circuitry 550, configured for various functions, including, for example, determining whether to use a two-octet format or an eight-octet format based on the value of a pre-selected bit in the MAC CE. In some aspects, octet format determination circuitry 550 is configured for various functions, including, for example, identifying the MAC CE corresponding to the secondary cell based on a one-octet format or a four-octet format. For example, octet format determination circuitry 550 may be configured to implement the following description... Figure 38 One or more of the functions described include, for example, block 3806.

[0202] In some aspects of this disclosure, processor 504 may include secondary cell release circuitry 552, configured for various functions, including, for example, releasing the secondary cell from a secondary cell dormant state. For example, secondary cell release circuitry 552 may be configured to implement the following description... Figure 40One or more of the functions described include, for example, block 4004.

[0203] In some aspects of this disclosure, processor 504 may include timer configuration circuitry 544 configured for various functions, including, for example, configuring a secondary cell deactivation timer for a secondary cell and / or configuring a secondary cell inactivity timer. In some aspects, the term "configuration" as used with respect to timers disclosed herein may include setting and / or starting a timer. For example, a secondary cell inactivity timer may control the transition from a secondary cell active state to a secondary cell dormant state. In some aspects, timer configuration circuitry 554 may be configured for various functions, including, for example, giving the secondary cell inactivity timer a higher priority than at least one other timer configured for a secondary cell. For example, timer configuration circuitry 554 may be configured to implement the following description... Figure 41 and Figure 42 One or more of the described functions include, for example, blocks 4102, 4202, and 4204.

[0204] In one or more examples, computer-readable storage medium 506 may include MAC CE acquisition software 560, configured for various functions, including, for example, acquiring a MAC CE from a network. In some aspects, the MAC CE may be configured to: indicate any one of a plurality of state transition actions for the secondary cell. In some aspects, the MAC CE may be configured to: indicate any one of a plurality of state transition actions for the secondary cell, independent of the current operating state of the secondary cell. In some examples, the MAC CE acquisition software 560 may be configured for various functions, including, for example, acquiring a second MAC CE from the network in a subframe. In some examples, the MAC CE acquisition software 560 may be configured for various functions, including, for example, acquiring a first MAC CE and a second MAC CE from the network. The first and second MAC CEs may be configured to: indicate one of a plurality of state transition actions for the secondary cell. For example, the first MAC CE may be configured to control the transition to (or from) a sleep state of the secondary cell, and the second MAC CE may be configured to control the activation and deactivation of the secondary cell. For example, the MAC CE acquisition software 560 may be configured to implement the following description... Figures 23-25 , Figures 28-38 One or more of the described functions include, for example, blocks 2302, 2402, 2502, 2802, 2902, 3002, 3102, 3202, 3302, 3402, 3502, 3602, 3702 and / or 3802.

[0205] In one or more examples, computer-readable storage medium 506 may include state transition software 562, which is configured for various functions, including, for example, transitioning to a secondary cell fast activation state (also known as a secondary cell dormant state) when a state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state. In some aspects of this disclosure, the state transition software 562 may be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell fast activation state (also known as a secondary cell dormant state) when a state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state. In some aspects of this disclosure, the state transition software 562 may be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell fast activation state, or from a secondary cell fast activation state to a secondary cell active state, at least based on the MAC CE. In some aspects of this disclosure, the state transition software 562 may be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell fast activation state, or vice versa, at least based on the MAC CE. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, at least based on MAC CE, transitioning from a secondary cell active state to a secondary cell fast active state.

[0206] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell active state or a secondary cell deactivated state to a secondary cell dormant state when a first MAC CE includes an indication to transition to a secondary cell dormant state and a second MAC CE includes an indication to transition to a secondary cell active state or a secondary cell deactivated state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell deactivated state or a secondary cell active state to a secondary cell fast active state, at least based on a MAC CE.

[0207] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell dormant state to a secondary cell active state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell dormant state to a secondary cell deactivated state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell deactivated state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell active state or a secondary cell fast activation state to a secondary cell deactivated state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivated state.

[0208] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state or a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state to a secondary cell active state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell active state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state or a secondary cell activation state to a fast activation state based on a first MAC CE independent of the second MAC CE. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a fast activation state to a secondary cell deactivation state or a secondary cell activation state based on a second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state to a secondary cell activation state based on a second MAC CE, or transitioning from a secondary cell activation state to a secondary cell deactivation state based on a second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state.

[0209] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell fast activation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell deactivation state to a secondary cell active state when the state transition action indicated by the MAC CE includes a transition to a secondary cell active state.

[0210] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell active state or a secondary cell fast activation state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell dormant state to a secondary cell deactivation state when the MAC CE includes an indication to transition to a secondary cell deactivation state.

[0211] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell fast activation state (also known as a secondary cell dormant state) to a secondary cell deactivation state when the state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state.

[0212] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell dormant state to a secondary cell deactivated state when a secondary cell deactivation timer expires. In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, transitioning from a secondary cell active state to a secondary cell dormant state when a secondary cell inactivity timer expires.

[0213] In some aspects of this disclosure, the state transition software 562 can be configured for various functions, including, for example, directly transitioning to a secondary cell active state or a secondary cell dormant state based on an instruction to add a secondary cell to a secondary cell active state or a secondary cell dormant state.

[0214] For example, state transition software 562 can be configured to implement the following regarding... Figures 23-37 , Figure 39 , Figure 41 and Figure 42 One or more of the described functions include, for example, blocks 2304, 2404, 2406, 2504, 2604, 2704, 2706, 2804, 2904, 3004, 3104, 3204, 3304, 3404, 3504, 3604, 3606, 3704, 3706, 3904, 4104 and / or 4206.

[0215] In one or more examples, computer-readable storage medium 506 may include operating state software 564, which is configured for various functions, including, for example, operating in a secondary cell fast activation state (also known as a secondary cell dormant state). In some aspects of this disclosure, the operating state software 564 may be configured for various functions, including, for example, operating in a secondary cell active state based on a transition to a secondary cell active state, or operating in a secondary cell deactivation state based on a transition to a secondary cell deactivation state. In some aspects of this disclosure, the operating state software 564 may be configured for various functions, including, for example, operating in a secondary cell deactivation state. In some aspects of this disclosure, the operating state software 564 may be configured for various functions, including, for example, operating in a secondary cell active state. In some aspects of this disclosure, the operating state software 564 may be configured for various functions, including, for example, operating in a secondary cell fast activation state.

[0216] In some aspects of this disclosure, the operation state software 564 can be configured for various functions, including, for example, operating in the secondary cell fast activation state based on a transition to the secondary cell fast activation state (also known as the secondary cell dormant state), or operating in the secondary cell active state based on a transition to the secondary cell active state. For example, the operation state software 564 can be configured to implement the following description... Figures 23-37 One or more of the described functions include, for example, blocks 2306, 2408, 2506, 2606, 2708, 2806, 2906, 3006, 3106, 3206, 3306, 3406, 3506, 3608 and / or 3708.

[0217] In some aspects of this disclosure, the message receiving software 566 can be configured for various functions, including, for example, receiving RRC connection reconfiguration messages. In some aspects, the RRC connection reconfiguration message may include an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state. In other aspects, the RRC connection reconfiguration message may include an indication to release a secondary cell. For example, the message receiving software 566 can be configured to implement the following description... Figure 39 and Figure 40 One or more of the functions described include, for example, blocks 3902 and 4002.

[0218] In one or more examples, computer-readable medium 506 may include LCID value acquisition software 568, which is configured for various functions, including, for example, acquiring an LCID value indicating whether the MAC CE is a fast-activated / deactivated MAC CE, wherein the fast-activated / deactivated MAC CE supports a two-octet format or an eight-octet format. In some aspects of this disclosure, LCID value acquisition software 568 may be configured for various functions, including, for example, acquiring a first LCID value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on an eight-octet format, or acquiring a second LCID value indicating whether the MAC CE is a dormant activated / deactivated MAC CE based on a four-octet format. For example, LCID value acquisition software 568 may be configured to implement the following... Figure 38 One or more of the functions described, including, for example, block 3804.

[0219] In one or more examples, computer-readable storage medium 506 may include octet format determination software 570, which is configured for various functions, including, for example, determining whether to use a two-octet format or an eight-octet format based on the value of pre-selected bits in the MAC CE. In some aspects, the octet format determination software 570 is configured for various functions, including, for example, identifying the MAC CE corresponding to the secondary cell based on a one-octet format or a four-octet format. For example, the octet format determination software 570 may be configured to implement the following description... Figure 38 One or more of the functions described include, for example, block 3806.

[0220] In some aspects of this disclosure, processor 504 may include secondary cell release software 572, which is configured for various functions, including, for example, releasing the secondary cell from a dormant state. For example, secondary cell release software 572 may be configured to implement the following description... Figure 40 One or more of the functions described include, for example, block 4004.

[0221] In some aspects of this disclosure, processor 504 may include timer configuration software 574, which is configured for various functions, including, for example, configuring a secondary cell deactivation timer for the secondary cell and / or configuring a secondary cell inactivity timer. For example, the secondary cell inactivity timer may control the transition from a secondary cell active state to a secondary cell dormant state. In some aspects, timer configuration software 574 may be configured for various functions, including, for example, giving the secondary cell inactivity timer a higher priority than at least one other timer configured for the secondary cell. For example, timer configuration software 574 may be configured to implement the following description... Figure 41 and Figure 42 One or more of the described functions include, for example, blocks 4102, 4202, and 4204.

[0222] This disclosure generally relates to techniques for controlling secondary cell (SCell) state transitions. SCell state transitions may include a new SCell state, such as a fast-activation SCell state (also referred to herein as a dormant SCell state, fast-activation state, or new SCell state). For example, a fast-activation SCell state can reduce or optimize UE (e.g., Figure 5 This paper describes techniques for controlling SCell state transitions from the UE's perspective. For example, to ensure optimal operation, it may be necessary to inform the UE of SCell state transitions so that the UE can adjust its operating state accordingly. Carrier aggregation allows the use of more than one carrier to increase the total transmission bandwidth. To perform carrier aggregation, the UE can coordinate with a network entity (e.g., an eNB) to first select a primary cell (PCell) and then receive an allocation of such a secondary cell after the network has evaluated one or more secondary cells (SCells) that can also serve the UE.

[0223] In traditional communication systems, an SCell can be in either a deactivated or activated state (also known as an active mode). According to the aspects described herein, in addition to traditional SCell states (e.g., deactivated and activated states), a fast activated state can also be used to implement an SCell. In some aspects of this disclosure, as detailed herein, the transition between the fast activated and traditional SCell states can be based on a Media Access Control (MAC) Control Element (CE) procedure. It should be understood that the aspects described herein can be applied to Long Term Evolution (LTE) networks, 5G NR networks, and other suitable communication networks.

[0224] Figure 6 This is a first example state transition diagram for PCell and SCell based on some aspects of this disclosure. In some aspects, reference is made to... Figure 6 The described states and state transitions can be from the UE's perspective. For example, in some aspects of this disclosure, references... Figure 6 The described states and state transitions can represent the UE (e.g., Figure 5 The corresponding operation status and status transition of the scheduled entity 500 in the data.

[0225] In state 602, the UE can be in Radio Resource Control (RRC) idle mode relative to the primary cell (PCell) (also known as LTE RRC_Idle mode). After the RRC connection establishment process, the UE can transition from state 634 to state 604 and operate in RRC connected mode (also known as LTE RRC_Connected). For example, in state 604, since no SCell is added in this state, only a single carrier is available to the UE via the PCell. At state 606, an SCell is added for carrier aggregation. The transition 632 to state 606 may include an RRC connection reconfiguration process. It should be noted that the added SCell remains deactivated in state 606. In state 608, the SCell is in traditional carrier aggregation (CA) active mode. For example, in state 608, the UE can monitor the PDCCH, secondary PDCCH (sPDCCH), enhanced PDCCH (ePDCCH), and / or can report Channel Quality Indicator (CQI) / Sound Reference Signal (SRS). In the new state 610, the SCell is in the SCell fast active state. In some aspects of this disclosure, in state 610, the UE may not monitor (e.g., avoid monitoring) the SCell's PDCCH, secondary PDCCH (sPDCCH), enhanced PDCCH (ePDCCH), and / or may not perform active PDSCH / PUSCH data transmission. In some aspects of this disclosure, in state 610, the UE may report Channel Quality Indicator (CQI) / Sound Reference Signal (SRS).

[0226] exist Figure 6In this disclosure, state transitions 620, 622, 624, 632, 634, and 636 are conventional state transitions. For example, conventional signaling (e.g., using a regular signaling protocol) can be used to signal these state transitions to the UE. State transitions 612, 614, 616, and 618 are new transitions caused by SCell fast activation state 610. According to some aspects of this disclosure, new MAC CEs can be used to define state transitions 612, 614, 616, and 618. In an aspect of this disclosure, referring to state transition 618, the SCell can move directly from SCell fast activation state 610 to conventional SCell activation state 608 (e.g., SCell activation mode) after a handover (HO) based on an HO RRC signaling indication. In an aspect of this disclosure, referring to state transition 628, the SCell can be released from SCell fast activation state 610 upon receiving an RRC connection reconfiguration message with an SCell release indication. In this disclosure, referring to state transition 630, when adding an SCell, the added SCell can be allowed to transition directly from state 604 to SCell fast activation state 610 based on a new RRC Information Element (IE) indication. In this disclosure, referring to state transition 638, based on RRC handover (HO) signaling, the SCell can also remain in SCell fast activation state 610 after the HO.

[0227] The traditional SCell state transitions and traditional MAC CE behavior will now be described. The activation / deactivation mechanism for a SCell can be based on a combination of MAC CE and a deactivation timer. The MAC CE carries a bitmap for SCell activation and deactivation: bits set to "1" indicate activation of the corresponding SCell, while bits set to "0" indicate deactivation. Using the bitmap, SCells can be activated and deactivated individually, and a single activation / deactivation command can activate / deactivate a subset of SCells. A deactivation timer can be maintained for each SCell, but a common value is configured for each UE via Radio Resource Control (RRC).

[0228] Figure 7 This shows an example format 700 for a traditional SCell activation / deactivation MAC CE using an 8-bit byte. (Example:) Figure 7 As shown, example format 700 has a fixed size and includes seven C fields (e.g., Figure 7 The seven C fields (C1 to C7) and one reserved field (also referred to as the R field in this document) can represent the bitmap carried in the previously described MAC CE, and each C field can correspond to a specific SCell.

[0229] Figure 8 This shows an example format 800 of a traditional SCell activation / deactivation MAC control element consisting of four octet bytes. Figure 8 As shown, example format 800 has a fixed size and includes 31 C fields (e.g., Figure 8 Fields C1 to C 31 There is one R field. The 31 C fields can represent the bitmap carried in the previously described MAC CE, and each C field can correspond to a specific SCell.

[0230] Figure 9 Table 900 shows a list of example Logical Channel Identifier (LCID) values. For example, Figure 9 The LCID value can be used for downlink (DL) channel sharing. In some aspects of this disclosure, one or more new LCID values ​​(e.g., new LCID values ​​902, 904) can be implemented to represent new states involving the previously described conditions (e.g., Figure 6 One or more corresponding new MAC CEs transition from the SCell fast activation state 610 in the MAC CE. In some aspects of this disclosure, the format of such a new MAC CE may be similar to the traditional MAC CE format, such as... Figure 7 The example format 700 shows an octet of a traditional SCell activation / deactivation MAC control element, or... Figure 8 The example format 800 shows a traditional SCell activation / deactivation MAC control element consisting of four octet bytes. In some aspects of this disclosure, a fast activation / deactivation MAC CE of one octet can be generated by having a new LCID value (e.g., Figure 9 The new LCID value (904) in the MAC PDU subheader is used to identify it. For example, the fast activation / deactivation MAC CE can have a fixed size and can consist of a single octet including seven C fields and one R field.

[0231] In some aspects of this disclosure, a four-octet fast activation / deactivation MAC CE can be generated by having a new LCID value (e.g., Figure 9 The new LCID value (904) is identified by the MAC PDU subheader. For example, a fast activation / deactivation MAC CE can have a fixed size and can consist of four octets including 31 C fields and one R field. In some aspects of this disclosure, if an SCell with a configured SCell index (SCellIndex)i exists, then C... iThe value of this field can indicate the fast activation / deactivation transition for the SCell with SCellIndex i. Otherwise, the MAC entity can ignore C. i The value of the field. For example, C can be... i The field is set to '1' to indicate that an SCell with SCell index i is converted to the SCell fast-active state, or C can be... i The field is set to '0' to indicate that the SCell with SCell index i has transitioned to the SCell fast activation state. For example, the reserved bit R can be set to "0". In one aspect of this disclosure, for the case where there is no serving cell with a ServCellIndex greater than 7, a one-eight-byte fast activation / deactivation MAC CE can be applied; otherwise, a four-eight-byte fast activation / deactivation MAC CE can be applied.

[0232] In some aspects of this disclosure, a fast activation / deactivation MAC CE of one octet or four octets can be generated by having a single new LCID value (e.g., Figure 9 The new LCID value (904) is identified by the MAC PDU subheader. In these aspects, for example, the reserved bits R of the new SCell activation / deactivation MAC control element (e.g., in the previously referenced...) can be used. Figure 7 and Figure 8 In the description of the R field, setting it to '0' indicates an octet format (e.g., example format 700) or setting it to '1' indicates a four-octet format (e.g., example format 800).

[0233] SCell state transition from the traditional state to the new state

[0234] Figure 10Table 1000, illustrating exemplary new MAC CE values ​​and conventional MAC CE values ​​for controlling SCell state transitions, is shown according to various aspects of this disclosure. It should be noted that state transitions 1002, 1004, 1006, and 1008, and their corresponding new and conventional MAC CE values, relate to transitions from a conventional state of the SCell to a new state (e.g., the previously described SCell fast-active state). The values ​​in Table 1000 are used to illustrate an example implementation to facilitate understanding of the aspects described herein. Therefore, it should be understood that one or more values ​​in Table 1000 (e.g., the actual values ​​of the bits) can be configured differently in other aspects. It should also be noted that, in addition to the values ​​in one or more MAC CEs (e.g., values ​​in the new MAC CE and / or the conventional MAC CE), state transitions can be based on the initial state from which the transition occurs. For example, state transitions 1002 and 1006 are different because state transition 1002 can be initiated from a deactivated state, while state transition 1006 can be initiated from a conventionally active state, even if the values ​​in the MAC CEs are the same for both transitions.

[0235] In some aspects of this disclosure, if the UE receives a C that is set to '1' i Fields (e.g., C corresponding to a specific SCell) i If the SCell (and UE) is in a traditional deactivated state (also referred to herein as the traditional SCell deactivated state) and the UE receives a new MAC CE with the field set to '1', then the UE can transition from the traditional state to the new state. In the first example state transition (e.g., state transition 1002 or state transition 1004), if the SCell (and UE) are in a traditional deactivated state (also referred to herein as the traditional SCell deactivated state) and the UE receives a MAC CE with the field set to '1', then the UE can transition from the traditional state to the new state. i Fields (e.g., C corresponding to SCell) i If the SCell (and UE) receives a new MAC CE with the field set to '1', the UE can transition to the SCell fast active state. In the second example state transition (e.g., state transition 1006 or state transition 1008), if the SCell (and UE) are in the traditional active state and the UE receives a MAC CE with the field set to '1', the UE can transition to the SCell fast active state. i If the UE receives a new MAC CE, it can switch to SCell fast activation state. If the UE receives only one MAC CE (e.g., a new MAC CE or a legacy MAC CE), the UE can act based on the received MAC CE.

[0236] If the UE receives both the traditional MAC CE and the new MAC CE (e.g., for the same SCell) in the same subframe, and the new MAC CE is set to '1', then the new MAC CE can take precedence over the traditional MAC CE. For example, in the case where the UE receives both the traditional MAC CE and the new MAC CE in the same subframe, the C in the traditional MAC CE... i The field can be set to '0', but in the new MAC CE, C... i The field can be set to '1'. In this case, it corresponds to C. i The corresponding SCell for the field can be transitioned to a new state (e.g., SCell fast activation state). Therefore, the UE can ignore the C in traditional MAC CE. i Field. If the UE is operating in legacy state and receives both a legacy MAC CE and a new MAC CE in the same subframe, then in order to enable legacy state transition (e.g., Figure 6 In transitions 620 and 622, the new MAC CE value can be set to '0', and the traditional MAC CE value can be set to '0' or '1' based on the previously described traditional SCell state transition definition (e.g., a bit set to '1' indicates activation of the corresponding SCell, while a bit set to '0' indicates deactivation). It should be understood that: Figure 10 The symbol "--" indicates that the value does not exist or has not been received, and the symbol "X" indicates that the value can be '0' or '1'.

[0237] In some aspects of this disclosure, if the UE receives a new MAC CE, C in that new MAC CE i The field is set to '0', and if the UE does not receive a traditional MAC CE, the UE can identify it as an invalid condition and maintain its current state. In other aspects of this disclosure, if the UE is in a traditional SCell active state (e.g., state 608), and if the UE receives a new MAC CE, the C in that new MAC CE... i If the field is set to '0' and no traditional MAC CE is received, the UE can switch to the traditional SCell deactivated state.

[0238] SCell state transition from the new state to the traditional state

[0239] Figure 11Table 1100, indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions, is shown according to various aspects of this disclosure. It should be noted that state transitions 1102 and 1104, and the corresponding new and conventional MACCE values, relate to the transition from a new state of the SCell (e.g., SCell fast-activation state) to a conventional state of the SCell. Therefore, a UE operating in a new state (e.g., SCell fast-activation state) can transition to a conventional state based on both the conventional MACCE value and the new MACCE value. In one example, reference... Figure 6 The UE can currently be in SCell fast activation state 610. When the C corresponding to the SCell in the new MAC CE... i The field is set to '0' and the corresponding SCell in traditional MAC CE. i When the field is set to '1', the UE can transition from SCell fast activation state 610 to traditional SCell activation state 608 (e.g., traditional carrier aggregation (CA) activation mode). In another example, refer again... Figure 6 The UE can currently be in SCell fast activation state 610. When the C corresponding to the SCell in the new MAC CE... i The field is set to '0' and the corresponding SCell in traditional MAC CE. i When the field is set to '0', the UE can transition from SCell fast activation state 610 to traditional SCell deactivation state 606. According to some aspects of this disclosure, in addition to the signaling of the traditional MAC CE, this method may only require a new MAC CE signaled from the network to handle all possible new SCell state transitions.

[0240] In one aspect of this disclosure, as previously described, the UE can transition from a new state to a conventionally deactivated state via a conventional MAC CE deactivation method. In another aspect of this disclosure, the UE can transition from a new state to a conventionally deactivated state as a result of the expiration of a SCell deactivation timer for a given SCell. In one example, the SCell deactivation timer can be a conventional timer. In another example, the SCell deactivation timer can be a new timer configured with a timer value that is the same as or greater than a conventional timer value. In yet another aspect of this disclosure, the UE can transition from a new state to a conventionally deactivated state due to handover.

[0241] In one aspect of this disclosure, reference is made to Figure 6The UE can transition from a traditional SCell active state 608 (e.g., SCell PDCCH monitoring state of SCell active state) to a new state 610 in response to the expiration of an inactivity timer specific to the SCell (e.g., "low-power inactivity timer expiration"). The low-power inactivity timer can be a connected-mode discontinuous reception (CDRX) inactivity timer or a newly defined timer function. This is a new timer behavior. The new transition 616 can be prioritized by defining a shorter low-power inactivity timer compared to a traditional SCell inactivity timer, in which case the traditional transition 622 due to the expiration of the SCell inactivity timer may not occur. In one aspect of this disclosure, reference is made to... Figure 6 The UE can transition from the traditional SCell active state 608 (e.g., the SCell PDCCH monitoring state of the SCell active state) to the SCell fast active state 610 in response to a new MAC CE trigger received on the PCell or SCell.

[0242] Figure 12 This is a second example state transition diagram for PCell and SCell based on some aspects of this disclosure. Figure 12 The described states and state transitions can be from the UE's perspective. For example, in some aspects of this disclosure, references... Figure 12 The described states and state transitions can represent the corresponding operational states and state transitions of the UE. In some aspects of this disclosure, Figure 12 The states 1202, 1204, 1206, 1208, and 1210 shown are respectively related to Figure 6 This corresponds to states 602, 604, 606, 608, and 610 previously described. In these aspects, Figure 12 The state transitions 1216, 1220, 1222, 1224, 1226, 1228, 1230, 1232, 1234, and 1236 shown are respectively related to Figure 6 The state transitions shown correspond to 616, 620, 622, 624, 626, 628, 630, 632, 634, and 636. It should be noted that: in Figure 12 In the example configuration, there is no state transition from state 1206 to the new state 1210 (also known as SCell quick activation state 1210), and there is no state transition from the new state 1210 to state 1206.

[0243] State transitions 1216, 1218, and 1238 are new transitions caused by SCell fast activation state 1210. According to some aspects of this disclosure, state transitions 1216 and 1218 can be defined using a new MAC CE. In an aspect of this disclosure, referring to state transition 1218, an SCell can move directly from SCell fast activation state 1210 to state 1208 (e.g., SCell active mode) in response to a handover (HO) indication (e.g., in response to receiving a handover signal or in response to receiving an RRC signaling indication). In an aspect of this disclosure, referring to state transition 1228, an SCell can be released from SCell fast activation state 1210 upon receiving an RRC connection reconfiguration message with an SCell release indication. In an aspect of this disclosure, referring to state transition 1230, when adding an SCell, an SCell can be allowed to transition directly from state 1204 to SCell fast activation state 1210 based on a new RRC Information Element (IE) indication. In this disclosure, referring to state transition 1238, based on handover signaling, SCell can also remain in SCell fast active state 610 after the handover.

[0244] As previously referred to Figure 6 As described, if an SCell with SCell index i exists, then C i The field value can indicate the fast activation / deactivation conversion of the SCell with SCell index i. Otherwise, the MAC entity can ignore C. i The value of the field. For example, in Figure 12 In the middle, C can be i The field is set to '1' to indicate that an SCell with SCell index i is converted to the SCell fast-active state, or C can be... i The field is set to '0' to indicate that the SCell with SCell index i has transitioned to the SCell fast activation state. For example, the reserved bit R can be set to "0". In one aspect of this disclosure, for the case where there is no serving cell with a serving cell index greater than 7, a one-byte fast activation / deactivation MAC CE can be applied; otherwise, a four-byte fast activation / deactivation MAC CE can be applied.

[0245] Figure 13Table 1300, indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions, is shown according to various aspects of this disclosure. It should be noted that state transitions 1302 and 1304, and the corresponding new MACCE values ​​and conventional MACCE values, relate to the transition from a conventional state of SCell to a new state (e.g., SCell fast-activated state). It should also be noted that state transitions 1306 and 1308, and the corresponding new MACCE values ​​and conventional MACCE values, relate to the transition from a new state of SCell (e.g., SCell fast-activated state) to a conventional state. It should be understood that: Figure 13 The symbol "--" indicates that the value does not exist or has not been received, and the symbol "X" indicates that the value can be '0' or '1'.

[0246] The state transition based on the new MAC CE from a traditional state (e.g., traditional active state 1208) to a new state (e.g., SCell fast active state 1210) will now be described (e.g., state transition 1216). In this disclosure, if the UE receives a MAC CE set to '1'... i Fields (e.g., C corresponding to a specific SCell) i If the UE receives a new MAC CE (field) that is set to '0', the UE can transition from the traditional active state 1208 to the new state (e.g., SCell fast active state 1210). The state transition based on the new MAC CE from the new state (e.g., SCell fast active state 1210) to the traditional active state 1208 (e.g., state transition 1218) will now be described. In some aspects of this disclosure, if the UE receives a MAC CE that is set to '0', the UE can transition from the traditional active state 1208 to the new state (e.g., SCell fast active state 1210) (e.g., state transition 1218). i Fields (e.g., C corresponding to a specific SCell) i If a new MAC CE is obtained (e.g., SCell fast activation state 1210), the UE can transition from the new state to the traditional activation state 1208.

[0247] In one aspect of this disclosure, if the SCell is in a traditional deactivated state (e.g., state 1206) and if the UE receives both a traditional MAC CE and a new MAC CE, the traditional MAC CE is used for state transition and the new MAC CE is ignored. In another aspect of this disclosure, if the SCell is in traditional deactivated state 1206 and the UE receives both a traditional MAC CE and a new MAC CE, the SCell (and the UE) can transition to a new fast activated state 1210 when both the traditional MAC CE and the new MAC CE are set to '1'. In yet another aspect of this disclosure, the SCell can be in a traditional activated state 1208, and the UE can receive both a traditional MAC CE and a new MAC CE. In this aspect, the SCell (and the UE) can remain in the same traditional activated state 1208 when both the traditional MAC CE and the new MAC CE are set to '0'. Therefore, in this aspect, no "transition" occurs. In another aspect, when both the traditional MAC CE and the new MAC CE are set to '1', the SCell (and the UE) can transition to the new state 1210. In another aspect, when the traditional MAC CE, independent of the value of the new MAC CE, is set to '0', the SCell (and the UE) can transition to the traditional deactivation state 1206. In one aspect of this disclosure, if the SCell (and the UE) is in the SCell fast activation state 1210 and if the UE receives both the traditional MAC CE and the new MAC CE, then only the new MAC CE is used for state transition and the traditional MAC CE is ignored.

[0248] In one aspect of this disclosure, reference is made to Figure 12 The SCell can transition from a conventional active state 1208 (e.g., the SCell PDCCH monitoring state of the SCell active state) to a new state (e.g., the SCell fast active state 1210) in response to the expiration of an SCell-specific inactive timer (e.g., "low-power inactive timer expiration"). The low-power inactive timer can be a Connected Mode Discontinuous Receive (CDRX) inactive timer or a newly defined timer function. This is a new timer behavior. In some aspects of this disclosure, transition 1216 can be prioritized by defining a shorter low-power inactive timer compared to a conventional SCell inactive timer, in which case the conventional transition 1222 due to the expiration of the SCell inactive timer may not occur. In one aspect of this disclosure, reference is made to... Figure 12The SCell can transition from the conventional active state 1208 (e.g., the SCell PDCCH monitoring state of the SCell active state) to the SCell fast active state 1210 in response to a new MAC CE trigger received on the PCell or SCell.

[0249] Figure 14 This is a third example state transition diagram for PCell and SCell based on some aspects of this disclosure. In some aspects of this disclosure, Figure 14 The states 1402, 1404, 1406, 1408, and 1410 shown are respectively related to Figure 6 This corresponds to states 602, 604, 606, 608, and 610 previously described. In these aspects, Figure 14 The state transitions 1414, 1416, 1420, 1422, 1424, 1426, 1428, 1430, 1432, 1434, and 1436 shown are respectively related to Figure 6 The state transitions shown correspond to 614, 616, 620, 622, 624, 626, 628, 630, 632, 634, and 636. It should be noted that: in Figure 14 In the example configuration, there is no state transition from the traditional deactivation state 1406 to the new state 1410 (also known as SCell fast activation state 1410).

[0250] State transitions 1414, 1416, 1418, 1428, and 1438 are new transitions caused by a new SCell state 1410. According to some aspects of this disclosure, new MAC CEs can be used to define state transitions 1414, 1416, and 1418. In aspects of this disclosure, referring to state transition 1418, an SCell can move directly from SCell Fast Activation state 1410 to a traditional activation state 1408 (e.g., activation mode) in response to a handover (HO) indication (e.g., in response to receiving a handover signal or in response to receiving an RRC signaling indication). In aspects of this disclosure, referring to state transition 1428, an SCell can be released from SCell Fast Activation state 1410 when the UE receives an RRC connection reconfiguration message with an SCell release indication. In aspects of this disclosure, referring to state transition 1430, when adding an SCell, an SCell can be allowed to transition directly from state 1404 to SCell Fast Activation state 1410 based on an RRC New Information Element (IE) indication. In this disclosure, referring to state transition 1438, based on handover signaling, the SCell (and UE) can also remain in the SCell fast active state 1410 after the handover.

[0251] As previously referred to Figure 6 As described, if an SCell with SCell index i exists, then C i The field value can indicate the fast activation / deactivation conversion of the SCell with SCell index i. Otherwise, the MAC entity can ignore C. i The value of the field. For example, in Figure 14 In the middle, C can be i The field is set to '1' to indicate the conversion of an SCell with SCell index i to the SCell fast-active state, or C can be set to '1'. i The field is set to '0' to indicate the transition from SCell fast activation state to SCell fast activation state for SCell with SCell index i. For example, the reserved bit R can be set to "0". In one aspect of this disclosure, for the case where there is no serving cell with a serving cell index greater than 7, an octet of fast activation / deactivation MAC control element can be applied; otherwise, a four-octet fast activation / deactivation MAC control element can be applied.

[0252] Figure 15 Table 1500, indicating new MACCE values ​​and conventional MACCE values ​​for controlling SCell state transitions, is shown according to various aspects of this disclosure. It should be noted that state transitions 1502 and 1504, and the corresponding new MACCE values ​​and conventional MACCE values, relate to the transition from the conventional active state of the SCell (e.g., conventional active state 1408) to a new state (e.g., SCell fast active state 1410). It should also be noted that state transitions 1506 and 1508, and the corresponding new MACCE values ​​and conventional MACCE values, relate to the transition from the new state of the SCell to the conventional state of the SCell. It should be understood that: Figure 15 The symbol "--" indicates that the value does not exist or has not been received, and the symbol "X" indicates that the value can be '0' or '1'.

[0253] The state transition based on the new MAC CE from a traditional state (e.g., traditional active state 1408) to a new state (e.g., SCell fast active state 1410) will now be described (e.g., state transition 1416). In this disclosure, if the UE receives a MAC CE set to '1'... i Fields (e.g., C corresponding to a specific SCell) iIf the UE receives a new MAC CE (e.g., a Ci field set to '0'), the UE can transition from the traditional active state 1408 to the SCell fast active state 1410. The state transition based on the new MAC CE from the new state (e.g., SCell fast active state 1410) to the traditional state (e.g., traditional active state 1408) (e.g., state transition 1418) will now be described. In some aspects of this disclosure, if the UE receives a Ci field (e.g., a Ci field corresponding to a specific SCell) that is set to '0', the UE can transition from the traditional active state 1408 to the SCell fast active state 1410. i If the new MAC CE field is used, the UE can switch from SCell fast activation state 1410 to traditional activation state 1408.

[0254] In one aspect of this disclosure, if the SCell is in a traditional deactivated state (e.g., state 1406) and the UE receives both a traditional MAC CE and a new MAC CE, then only the traditional MAC CE is used for state transition and the new MAC CE is ignored. In another aspect of this disclosure, the SCell can be in a traditional active state (e.g., state 1408), and the UE can receive both a traditional MAC CE and a new MAC CE. In this aspect, when both the traditional MAC CE and the new MAC CE are set to '1', the UE can transition to the SCell fast active state 1410. When both the traditional MAC CE and the new MAC CE are set to '0', the UE can transition to the traditional deactivated state 1406.

[0255] In a new state (e.g., a SCell fast-activated state), a SCell can transition to a traditional state based on the values ​​of both the traditional MAC CE value and the new MAC CE value. In one example, refer to... Figure 14 The SCell (and UE) can currently be in a fast-active state 1410. In such an example, when the C corresponding to the SCell in the new MAC CE... i When the field is set to '0' and the Ci field corresponding to the SCell in the traditional MAC CE is set to '1', the UE can receive both traditional MAC CE and new MAC CE, and can transition from SCell fast activation state 1410 to traditional activation state 1408 (e.g., traditional carrier aggregation (CA) activation mode). In another example, refer again... Figure 14 The SCell (and UE) can currently be in SCell fast activation state 1410. When the corresponding SCell in the new MAC CE... i The field is set to '0' and the corresponding SCell in traditional MAC CE. iWhen the field is set to '0', the UE can receive both traditional MAC CE and new MAC CE, and can transition from SCell fast activation state 1410 to traditional deactivation state 1406. According to some aspects of this disclosure, in addition to the signaling of traditional MAC CE, this method may only need to signal a new MAC CE to handle all possible new state transitions.

[0256] In one aspect of this disclosure, reference is made to Figure 14 The SCell can transition from a conventional active state 1408 (e.g., the SCell PDCCH monitoring state of the SCell active state) to a new state (e.g., the SCell fast active state 1410) in response to the expiration of an SCell-specific inactive timer (e.g., "low-power inactive timer expiration"). The low-power inactive timer can be a Connected Mode Discontinuous Receive (CDRX) inactive timer or a newly defined timer function. This is a new timer behavior. In some aspects of this disclosure, transition 1416 can be prioritized by defining a shorter low-power inactive timer compared to a conventional SCell inactive timer, in which case the conventional transition 1422 due to the expiration of the SCell inactive timer may not occur. In one aspect of this disclosure, reference is made to... Figure 14 The SCell can transition from the conventional active state 1408 (e.g., the SCell PDCCH monitoring state of the SCell active state) to the SCell fast active state 1410 in response to a new MAC CE trigger received on the PCell or SCell.

[0257] State transition using two bits from the new MAC CE value

[0258] Figure 16 This shows an example format 1600 for a new SCell activation / deactivation MAC CE, consisting of two octet bytes. (Example: ...) Figure 16 As shown, example format 1600 has a fixed size and includes 14 C fields and two R fields. The 14 C fields can represent a bitmap carried in the new MAC CE, where there are identical indexes C... i Each pair of C fields (also referred to as C in this article) i C i Value or C for the new MAC CE i C iThe value can correspond to a specific SCell. For example, a C-field pair 1602 with the same C-field index C1 can correspond to one SCell, a C-field pair 1604 with the same C-field index C2 can correspond to another SCell, and so on. Therefore, example format 1600 allocates two bits to each SCell. In some aspects of this disclosure, as described herein, C... i C i The value can be a 2-bit value carried in a C-field pair with the same C-field index (e.g., C-field pair 1602). For example, refer to... Figure 16 When C i C i When the value '00' is given to the SCell corresponding to index C7, fields C71606 and C71608 can include the value '0'.

[0259] Figure 17 This shows an example format 1700 for a new SCell activation / deactivation MAC CE, consisting of eight octets. (Example: ...) Figure 17 As shown, example format 1700 has a fixed size and includes 62 C fields and two R fields. The 62 C fields can represent a bitmap carried in the new MAC CE, where there are identical indexes C... i Each pair of C fields can correspond to a specific SCell. For example, C field pair 1702 with the same C field index C1 can correspond to one SCell, C field pair 1704 with the same C field index C2 can correspond to another SCell, and so on. Therefore, example format 1700 allocates two bits for each SCell.

[0260] Figure 18 Table 1800 shows a list of example Logical Channel Identifier (LCID) values. For example, Figure 18 The LCID value can be used for downlink (DL) shared channels. In some aspects of this disclosure, one or more new LCID values ​​(e.g., new LCID value 1802) can be implemented to represent new states involving the previously described conditions (e.g., Figure 6 The state transition of one or more corresponding new MAC CEs in the SCell fast activation state 610. In some aspects of this disclosure, the format of such new MAC CEs may be similar to Figure 16 The example format 1600 shows two octet bytes for a new SCell activation / deactivation MAC CE, or something similar. Figure 17The example format 1700 shows an eight-byte new SCell activation / deactivation MAC control element. In some aspects of this disclosure, a two-byte or eight-byte fast activation / deactivation MAC CE can be achieved by having a single new LCID value (e.g., Figure 18 The new LCID value (1802) is identified by the MAC PDU subheader. In these aspects, for example, the R1 of the new SCell MAC control element (e.g., previously referred to) can be used to activate / deactivate the MAC control element. Figure 16 and Figure 17 R1 of the two described R fields is set to '0' to indicate a two-octet format (e.g., example format 1600) or it can be set to '1' to indicate an eight-octet format (e.g., example format 1700). In some aspects of this disclosure, R2 may be reserved. In other aspects of this disclosure, R2 may be used to indicate a two-octet format or an eight-octet format, while R1 is reserved. Thus, in some aspects of this disclosure, one of R1 and R2 may be implemented as an extended bit (also referred to as an E bit) for indicating a two-octet format or an eight-octet format, and the other of R1 and R2 may be a reserved bit.

[0261] When both a new MAC CE implementing 2 bits per SCell and a conventional MAC CE are received in the same subframe (e.g., in the same MAC transport block), the previously described new MAC CE implementing 2 bits per SCell (e.g., example format 1600 or example format 1700) can have a higher priority than the conventional MAC CE. Implementing a new MAC CE implementing 2 bits per SCell can minimize the need for a conventional MAC CE in the same subframe and eliminate the need for a simultaneous MAC CE in the same subframe. In some aspects of this disclosure, a new MAC CE implementing 2 bits per SCell can be used independently for any state transition in these possible state transitions without backward compatibility issues. In some aspects of this disclosure, a conventional MAC CE can also be used in the absence of a new MAC CE implementing 2 bits per SCell in the same subframe. If both a conventional MAC CE and a new MAC CE implementing 2 bits per SCell are received, the new MAC CE can take precedence. In some aspects of this disclosure, implementing a new 2-bit MAC CE for each SCell enables multiple SCells in different states to transition from their current state to different states. Implementing a new 2-bit MAC CE for each SCell enables SCell state transfer without requiring both the new MAC CE and the traditional MAC CE to perform state transitions within the same subframe. In some aspects of this disclosure, implementing a new 2-bit MAC CE for each SCell can significantly reduce the number of use cases (e.g., implementations and acknowledgments). For deployment, implementing a new 2-bit MAC CE for each SCell can be easily integrated into existing systems without major modifications, facilitating its adoption during commercialization. It should be noted that backward compatibility with traditional MAC CEs can still be maintained.

[0262] Figure 19 Table 1900 is shown in various aspects of this disclosure, which indicates exemplary C for the new MAC CE. i C i Values ​​(e.g., for a new 2-bit MAC CE implemented for each SCell) and their corresponding state transition actions. For example... Figure 19 As shown, C in row 1902 of Table 1900 i C i The value '00' can indicate that the SCell state has not changed (e.g., it has not transitioned to another state, or it remains in the current state); C in row 1904 of Table 1900 i Ci The value '01' can indicate a transition to a new SCell state (e.g., SCell fast-active state); C in row 1906 of Table 1900 i C i The value '10' can indicate a transition to the traditional active state of SCell; and C in row 1908 of Table 1900 i C i The value '11' can indicate a transition to the traditional deactivated state of the SCell. For example, with C i C i The state transition action corresponding to the value '01', "new state" (e.g., in row 1902 of Table 1900), can involve a transition from a traditional state of the SCell to a new state of the SCell (e.g., the SCell fast-activated state). Therefore, when C... i C i When the value is '01', the UE operating in the traditional state can transition to the new state (e.g., SCell fast activation state). It should be understood that in other aspects of this disclosure, the 2-bit value used to indicate each state transition action in Table 1900 may be different.

[0263] In the first example state transition diagram using two bits from the new MAC CE value (e.g., Figure 6 Control of SCell state transitions (in the middle)

[0264] Now refer to Figure 6 and Figure 20 This describes the SCell state transition from the traditional state to the new state when two bits are used for each SCell in the new MAC CE. Figure 20 Table 2000 is shown according to various aspects of this disclosure, which includes exemplary 2-bit values ​​(e.g., C) for the new MAC CE used to control the state transitions of the SCell. i C i Values), and include conventional MAC CE values ​​used to control SCell state transitions. For example, the term "source state" (such as...) Figures 20-22 (As shown) can refer to the initial or current state of the SCell, and the term "target state" (as shown) Figures 20-22 The states shown (as shown) can refer to the states that the SCell can transition to (or the states that the SCell maintains when the source and target states are the same). It should be noted that the state transitions in rows 2004 and 2010 of Table 2000, and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C...), i C iThe values ​​of the traditional MAC CE involve the transition from the traditional state of the SCell to a new state (e.g., the previously described SCell fast activation state). Figure 6 (Conversions 612 and 616 in the table). The values ​​in Table 2000 are used to illustrate an example implementation to facilitate understanding of the aspects described herein. Therefore, it should be understood that one or more values ​​in Table 2000 (e.g., the actual value of the bits) can be configured differently in other aspects. It should be understood that: Figure 20 The symbol “X” in the text indicates that the value can be '0' or '1', or that the value does not exist or has not been received.

[0265] According to Figure 19 The exemplary C of the new MAC CE described in [the document] i C i The value is used to determine the 2-bit value in the new MAC CE in Table 2000 (e.g., C). i C i The state transition action associated with the value. For example, referring to row 2004 in Table 2000, when the two bits allocated to this SCell (in the new MAC CE) are set to the indicator value '01' (e.g., where C... i C i When the value '01' is defined in Table 1900 as meaning a transition to a new state, a state transition from the deactivated state of SCell to the new state of SCell can be initiated (e.g., Figure 6 (Transition 612 in the table). It should also be noted that the state transitions indicated in Table 2000 can be implemented independently of the values ​​in the traditional MAC CE.

[0266] In some aspects of this disclosure, if the UE receives a C that is set to '01', i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the SCell (and UE) is in a traditional deactivated state (also referred to herein as the traditional SCell deactivated state) and the UE receives a new MAC CE with the field value set to '01', then the UE can transition from the traditional state to the new state. In the first example state transition (e.g., as indicated in row 2004 of Table 2000), if the SCell (and UE) are in a traditional deactivated state (also referred to herein as the traditional SCell deactivated state) and the UE receives a MAC CE with the field value set to '01', then the UE can transition from the traditional state to the new state. i C i Values ​​(e.g., from the two C values ​​corresponding to SCell) iIf the UE receives a new MAC CE with the field value set to '01', then the UE can transition to the SCell fast active state. In the second example state transition (e.g., as indicated in row 2010 of Table 2000), if the SCell (and the UE) are in the traditional active state and the UE receives a MAC CE with the field value set to '01', then the UE can transition to the SCell fast active state. i C i If the value of the new MAC CE is given, the UE can switch (e.g., Figure 6 The transition (616) to the SCell fast active state is described herein. In some aspects described herein, if the UE receives only one MAC CE (e.g., a new MAC CE or a traditional MAC CE implementing two bits), the UE can act based on the received MAC CE. If the UE receives both a traditional MAC CE and a new MAC CE in the same subframe (e.g., for the same SCell), the new MAC CE can take precedence over the traditional MAC CE. Therefore, in the case where the UE receives both a traditional MAC CE and a new MAC CE in the same subframe, the UE can ignore the C in the traditional MAC CE. i Field.

[0267] Now refer to Figure 6 and Figure 20 This describes the SCell state transition from the new state to the traditional state when using two bits from the new MAC CE value. It should be noted that the state transitions in rows 2014 and 2016 of Table 2000, and the corresponding 2-bit value used for the new MAC CE (e.g., C...),... i C i The values ​​of the new state (e.g., the previously described SCell fast activation state) and the traditional MAC CE involve the transition from the new state to the traditional state. For example, referring to row 2014 of Table 2000, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '10' (e.g., where C...), the transition from the new state to the traditional state is described. i C i When the value '10' is defined in Table 1900 as meaning a transition to a traditional active state, a state transition from the new state of the SCell to the traditional active state of the SCell can be initiated (e.g., ...). Figure 6 (Conversion 618 in the table). As another example, referring to row 2016 in Table 2000, when the two bits allocated to SCell (in the new MAC CE) are set to the indicator value '11' (e.g., where C... i C i When the value '11' is defined in Table 1900 as meaning a transition to a traditional deactivation state, a state transition from the new state of the SCell to the traditional deactivation state of the SCell can be initiated (e.g., ...). Figure 6(Conversion 614 in the middle).

[0268] In some aspects of this disclosure, if the UE receives a C that is set to '10'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the SCell (and UE) are in the new state and the UE receives a new MAC CE with the field value set to '10', the UE can transition from the new state to the traditional active state. In the first example state transition (e.g., as indicated in row 2014 of Table 2000), if the SCell (and UE) are in the new state and the UE receives a MAC CE with the field value set to '10', the UE can transition from the new state to the traditional active state. i C i Values ​​(e.g., from the two C values ​​corresponding to SCell) i If the SCell (and UE) are in the new state and the UE receives a new MAC CE with the field value set to the indication value '11', then the UE can transition to the traditional active state. In the second example state transition (e.g., as indicated in row 2016 of Table 2000), if the SCell (and UE) are in the new state and the UE receives a MAC CE with the field value set to the indication value '11', then the UE can transition to the traditional active state. i C i If the value of the new MAC CE is given, the UE can switch (e.g., Figure 6 The transition (614) in the middle is to the traditional deactivation state.

[0269] The SCell state transition from one traditional state to another will now be described when two bits from the new MAC CE value are used. (Refer to...) Figure 20 Table 2000 should indicate the state transitions in rows 2002 and 2008, and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C). i C i The value of the SCell and the value of the traditional MAC CE involve the transition from one traditional state of the SCell to another traditional state of the SCell. For example, referring to row 2002 in Table 2000, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '10' (e.g., where C...), the transition is from one traditional state to another. i C i When the value '10' is defined in Table 1900 as meaning a transition to a traditional active state, a state transition from the traditional deactivated state of the SCell to the traditional active state of the SCell can be initiated (e.g., ...). Figure 6 (Conversion 620 in the table). As another example, refer to row 2008 in Table 2000, when the two bits allocated to SCell (in the new MAC CE) are set to the indicator value '11' (e.g., where C...). i C iWhen the value '11' is defined in Table 1900 as meaning a transition to a traditional deactivated state, a state transition from the traditionally active state of that SCell to the traditionally deactivated state of that SCell can be initiated (e.g., ...). Figure 6 (Conversion 622 in the middle). Therefore, in some aspects of this disclosure, if the UE receives a C that is set to '10', i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the UE receives a new MAC CE (with the value of the field), the UE can transition from a legacy deactivated state to a legacy activated state. Therefore, in some aspects of this disclosure, if the UE receives a MAC CE including a field set to '11', the UE can transition from a legacy deactivated state to a legacy activated state. i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can transition from the traditional active state to the deactivated state.

[0270] In some aspects of this disclosure, two bits in the new MAC CE value can be set to maintain the current state of the SCell. (See also...) Figure 20 In Table 2000, it should be noted that the state transitions in rows 2006, 2012, and 2018, and the corresponding new MAC CE values, are configured to maintain the SCell's current state. For example, referring to row 2018 of Table 2000, when the two bits allocated to this SCell (in the new MAC CE) are set to the indicator value '00' (e.g., where C...),... i C i When the value '00' is defined in Table 1900 as meaning no change in state, the SCell currently in the new state can remain in the new state. Therefore, in some aspects of this disclosure, if the UE receives a C that is set to '00'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can not transition to another state (for example, the UE can maintain its current state).

[0271] In the second example state transition diagram using two bits from the new MAC CE value (e.g., Figure 12 Control of SCell state transitions (in the middle)

[0272] Now refer to Figure 12 and Figure 21 This describes the SCell state transition from the traditional state to the new state when two bits from the new MAC CE value are used. Figure 21Table 2100 is shown according to various aspects of this disclosure, which indicates exemplary 2-bit values ​​(e.g., C) of the new MAC CE used to control the state transitions of the SCell. i C i The table includes the state transition value (value), and also the conventional MAC CE value used to control the state transitions of the SCell. It should be noted that the state transitions in row 2108 of Table 2100, and the corresponding 2-bit value for the new MAC CE value (e.g., C...), are... i C i The value) and the traditional MAC CE value involve the transition from the traditional activation state of the SCell to a new state (e.g., the previously described fast activation state of the SCell). Figure 12 (Conversion 1216 in the document). The values ​​in Table 2100 are used to illustrate an example implementation to facilitate understanding of the aspects described herein. Therefore, it should be understood that one or more values ​​in Table 2100 (e.g., the actual values ​​of bits) may be configured differently in other aspects.

[0273] According to Figure 19 The exemplary C for the new MAC CE described in [the document] i C i The value is used to determine the 2-bit value in the new MAC CE in Table 2100 (e.g., C). i C i The state transition action associated with the value. For example, referring to row 2108 of table 2100, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '01' (e.g., where C... i C i When the value '01' is defined in Table 1900 as meaning a transition to a new state, a state transition from the traditional active state of the SCell to the new state of the SCell can be initiated (e.g., ...). Figure 12 (Transition 1216 in the table). It should also be noted that the state transitions indicated in Table 2100 can be implemented independently of the values ​​in the traditional MAC CE. It should be understood that: Figure 21 The symbol “X” in the text indicates that the value can be '0' or '1', or that the value does not exist or has not been received.

[0274] In some aspects of this disclosure, if the UE receives a C that is set to '01', i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) iIf the SCell (and UE) are in the traditional active state and the UE receives a new MAC CE (with the field value set to '01'), the UE can transition from the traditional active state to the new state. In an example state transition (e.g., as indicated in row 2108 of Table 2100), if the SCell (and UE) are in the traditional active state and the UE receives a MAC CE including the field value set to '01', the UE can transition from the traditional active state to the new state. i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can be converted (e.g., ...). Figure 12 The transition (1216) to the SCell fast active state is described herein. In some aspects described herein, if the UE receives only one MAC CE (e.g., a new MAC CE or a traditional MAC CE implementing two bits), the UE can act based on the received MAC CE. If the UE receives both a traditional MAC CE and a new MAC CE (e.g., for the same SCell) in the same subframe, the new MAC CE may take precedence over the traditional MAC CE. Therefore, in the case where the UE receives both a traditional MAC CE and a new MAC CE in the same subframe, the UE can ignore the C in the traditional MAC CE. i Field.

[0275] Now refer to Figure 12 and Figure 21 This describes the SCell state transition from the new state to the traditional state when using two bits in the new MAC CE. It should be noted that the state transitions in row 2112 of Table 2100, and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C...),... i C i The values ​​of the new state (e.g., the previously described SCell fast activation state) and the traditional MAC CE involve the transition from the new state to the traditional state. For example, referring to row 2112 in Table 2100, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '10' (e.g., where C...), the transition from the new state to the traditional state is described. i C i When the value '10' is defined in Table 1900 as meaning a transition to a traditional active state, a state transition from the new state of the SCell to the traditional active state of the SCell can be initiated (e.g., ...). Figure 12 (Conversion 1218 in the middle).

[0276] In some aspects of this disclosure, if the UE receives a C that is set to '10'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) iIf the SCell (and UE) are in the new state and the UE receives a new MAC CE with the field value set to '10', the UE can transition from the new state to the traditional active state. In the first example state transition (e.g., as indicated in row 2014 of Table 2100), if the SCell (and UE) are in the new state and the UE receives a MAC CE with the field value set to '10', the UE can transition from the new state to the traditional active state. i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can switch to the traditional active state.

[0277] The SCell state transition from one traditional state to another will now be described when two bits from the new MAC CE value are used. (Refer to...) Figure 21 Table 2100 in the table should indicate the state transitions in rows 2102 and 2106 and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C). i C i The values ​​of the SCell and the traditional MAC CE involve transitions from one traditional state of the SCell to another. For example, referring to row 2102 in Table 2100, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '10' (e.g., where C...), the transitions are related to the transitions from one traditional state of the SCell to another traditional state of the SCell. i C i When the value '10' is defined in Table 1900 as meaning a transition to a traditional active state, a state transition from the traditional deactivated state of the SCell to the traditional active state of the SCell can be initiated (e.g., ...). Figure 12 (Conversion 1220 in the table). As another example, refer to row 2106 in table 2100, when the two bits allocated to SCell (in the new MAC CE) are set to the indicator value '11' (e.g., where C...). i C i When the value '11' is defined in Table 1900 as meaning a transition to a traditional deactivated state, a state transition from the traditionally active state of that SCell to the traditionally deactivated state of that SCell can be initiated (e.g., ...). Figure 12 (Conversion 1222 in the middle).

[0278] Therefore, in some aspects of this disclosure, if the UE receives a C that is set to '10', i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the UE receives a new MAC CE (with the value of the field), the UE can transition from a legacy deactivated state to a legacy activated state. Therefore, in some aspects of this disclosure, if the UE receives a MAC CE including a field set to '11', the UE can transition from a legacy deactivated state to a legacy activated state. i Ci Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can switch from the traditional active state to the traditional deactivated state.

[0279] In some aspects of this disclosure, two bits in the new MAC CE can be set to maintain the current state of the SCell. (See also...) Figure 21 Table 2100 in the table should indicate the state transitions in rows 2104, 2110, and 2114, and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C). i C i The value is configured to keep the SCell in its current state. For example, referring to row 2114 in Table 2100, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '00' (e.g., where C...), the SCell is kept in its current state. i C i When the value '00' is defined in Table 1900 as meaning no change in state, the SCell currently in the new state can remain in the new state. Therefore, in some aspects of this disclosure, if the UE receives a C including a value set to '00'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can not transition to another state (for example, the UE can maintain its current state).

[0280] In the third example state transition diagram using two bits from the new MAC CE value (e.g., Figure 14 Control of SCell state transitions (in the middle)

[0281] Now refer to Figure 14 and Figure 22 This describes the SCell state transition from the traditional state to the new state when two bits from the new MAC CE value are used. Figure 22 Table 2200 is shown according to various aspects of this disclosure, which indicates exemplary 2-bit values ​​(e.g., C) for a new MAC CE, including those used to control the state transitions of the SCell. i C i The table includes the state transition values ​​(values) and the conventional MAC CE values ​​used to control the state transitions of the SCell. It should be noted that the state transitions in row 2208 of Table 2200, and the corresponding 2-bit values ​​for the new MAC CE (e.g., C...), are... i C iThe values ​​of the conventional MAC CE involve the transition from the conventional activation state of the SCell to a new state (e.g., the previously described fast activation state of the SCell). Figure 14 (Conversion 1416 in the text). It should be understood that: Figure 22 The symbol “X” in the text indicates that the value can be '0' or '1', or that the value does not exist or has not been received.

[0282] The values ​​in Table 2200 are used to illustrate an example implementation to facilitate understanding of the aspects described herein. Therefore, it should be understood that one or more values ​​in Table 2200 (e.g., the actual value of the bits) can be configured differently in other aspects. This can be based on... Figure 19 The exemplary C for the new MAC CE value described in [the document] i C i The value determines the state transition action associated with the two-bit value in the new MACCE in Table 2200. For example, referring to row 2208 in Table 2200, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '01' (e.g., where C...), the state transition action is determined. i C i When the value '01' is defined in Table 1900 as meaning a transition to a new state, a state transition from the traditional active state of the SCell to the new state of the SCell can be initiated (e.g., ...). Figure 14 (Transition 1416 in the table). It should also be noted that the state transitions indicated in Table 2200 can be implemented independently of the values ​​in the traditional MAC CE.

[0283] In some aspects of this disclosure, if the SCell (and the UE) are in a traditional active state and the UE receives a C signal that is set to '01'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MACCE, then the UE can be converted (e.g., Figure 14 The transition (1416) to the SCell fast active state is described herein. In some aspects described herein, if the UE receives only one MAC CE (e.g., a new MAC CE or a traditional MAC CE implementing two bits), the UE can act based on the received MAC CE. If the UE receives both a traditional MAC CE and a new MAC CE (e.g., for the same SCell) in the same subframe, the new MAC CE may take precedence over the traditional MAC CE. Therefore, in the case where the UE receives both a traditional MAC CE and a new MAC CE in the same subframe, the UE can ignore the C in the traditional MAC CE. i Field.

[0284] Now refer to Figure 14 and Figure 22 This describes the SCell state transition from the new state to the traditional state when using two bits from the new MAC CE value. It should be noted that the state transitions in rows 2212 and 2214 of Table 2200, and the corresponding 2-bit value used for the new MAC CE (e.g., C...),... i C i The values ​​of the new state (e.g., the previously described SCell fast activation state) and the traditional MAC CE involve the transition from the new state to the traditional state. For example, referring to row 2212 in Table 2200, when the two bits allocated to this SCell (in the new MAC CE) are set to the indicator value '10' (e.g., where C...), the transition from the new state to the traditional state is considered. i C i When the value '10' is defined in Table 1900 as meaning a transition to a traditional active state, a state transition from the new state of SCell to the traditional active state of SCell can be initiated (e.g., ...). Figure 14 (Conversion 1418 in the table). As another example, refer to row 2214 in table 2200, when the two bits allocated to SCell (in the new MAC CE) are set to the indicator value '11' (e.g., where C...). i C i When the value '11' is defined in Table 1900 as meaning a transition to a traditional deactivation state, a state transition from the new state of the SCell to the traditional deactivation state of the SCell can be initiated (e.g., ...). Figure 14 (Conversion 1414 in the middle).

[0285] In some aspects of this disclosure, if the UE receives a C that is set to '10'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the SCell (and UE) are in the new state and the UE receives a new MAC CE with the field value set to '10', the UE can transition from the new state to the traditional active state. In the first example state transition (e.g., as indicated in row 2212 of Table 2200), if the SCell (and UE) are in the new state and the UE receives a MAC CE with the field value set to '10', the UE can transition from the new state to the traditional active state. i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the SCell (and UE) are in the new state and the UE receives a new MAC CE with the field value set to '11', then the UE can transition to the traditional active state. In the second example state transition (e.g., as indicated in row 2214 of Table 2200), if the SCell (and UE) are in the new state and the UE receives a MAC CE with the field value set to '11', then the UE can transition to the traditional active state. i C iValues ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can be converted (e.g., ...). Figure 14 The transition from 1414 in the middle is to the traditional deactivation state.

[0286] The SCell state transition from one traditional state to another will now be described when two bits from the new MAC CE value are used. (Refer to...) Figure 22 Table 2200 in the table should indicate the state transitions in rows 2202 and 2206, and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C). i C i The values ​​of the SCell and the traditional MAC CE involve transitions from one traditional state of the SCell to another. For example, referring to row 2202 in Table 2200, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '10' (e.g., where C...), the transitions are not explicitly defined. i C i When the value '10' is defined in Table 1900 as meaning a transition to a traditional active state, a state transition from the traditional deactivated state of the SCell to the traditional active state of the SCell can be initiated (e.g., ...). Figure 14 (Conversion 1420 in the table). As another example, refer to row 2206 in table 2200, when the two bits allocated to SCell (in the new MAC CE) are set to the indicator value '11' (e.g., where C...). i C i When the value '11' is defined in Table 1900 as meaning a transition to a traditional deactivated state, a state transition from the traditionally active state of that SCell to the traditionally deactivated state of that SCell can be initiated (e.g., ...). Figure 14 (Conversion 1422 in the present disclosure). Therefore, in some aspects of this disclosure, if the UE receives a C that is set to '10', i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the UE receives a new MAC CE (with the value of the field), the UE can transition from a legacy deactivated state to a legacy activated state. Therefore, in some aspects of this disclosure, if the UE receives a MAC CE including a field set to '11', the UE can transition from a legacy deactivated state to a legacy activated state. i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can switch from the traditional active state to the traditional deactivated state.

[0287] In some aspects of this disclosure, two bits in the new MAC CE value can be set to maintain the current state of the SCell. (See also...) Figure 22 Table 2200 in the table should indicate the state transitions in rows 2204, 2210, and 2216, and the corresponding 2-bit values ​​used for the new MAC CE (e.g., C). i C i The value is configured to keep the SCell in its current state. For example, referring to row 2216 in Table 2200, when the two bits allocated to the SCell (in the new MAC CE) are set to the indicator value '00' (e.g., where C...), the SCell is kept in its current state. i C i When the value '00' is defined in Table 1900 as meaning no change in state, the SCell currently in the new state can remain in the new state. Therefore, in some aspects of this disclosure, if the UE receives a C including a value set to '00'... i C i Values ​​(e.g., from two C values ​​corresponding to a specific SCell) i If the value of the field is a new MAC CE, then the UE can not transition to another state (for example, the UE can maintain its current state).

[0288] In some aspects of this disclosure, C in a new MAC CE indicates that the state has not changed. i C i Values ​​(e.g., Figure 19 C in i C i A value of '00' allows control over the state transitions of two or more distinct SCells within a single transmission (e.g., a single new MAC CE). For example, the first SCell may be in a new state, while the second SCell may be in a traditional deactivated state. The new MAC CE can implement a condition indicating no change in the state of the first SCell. i C i The value is used to transition the second SCell to the conventional active state (without transitioning the first SCell to another state). Therefore, the MAC CE described herein avoids the need to stagger state transition operations between SCells based on their current operating states, as required for conventional MAC CEs, because the control over SCell state transitions provided by the new MAC CE is independent of conventional MAC CEs.

[0289] Figure 23This is a flowchart illustrating an exemplary process 2300 for a rapid activation state transition to a secondary cell, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2300 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2300 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0290] At block 2302, the scheduled entity can obtain a Media Access Control (MAC) Control Element (CE) from the network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for the secondary cell. For example, the MAC CE could be a new MAC CE as previously described (e.g., a new SCell activation / deactivation MAC CE based on two octets of example format 1600, or a new SCell activation / deactivation MAC CE based on eight octets of example format 1700). For example, the plurality of state transition actions for the secondary cell could be referenced... Figure 19 The described state transition action.

[0291] At block 2304, when the state transition action indicated by MAC CE includes a transition to the secondary cell fast activation state, the scheduled entity can transition to the secondary cell fast activation state. For example, the state transition action indicated by MAC CE can be represented by C. i C i The value '01' is used to indicate this.

[0292] At block 2306, the scheduled entity can operate in the auxiliary cell's fast-active state.

[0293] Figure 24 This is a flowchart illustrating an exemplary process 2400 for transitioning the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2400 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2400 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0294] At block 2402, the scheduled entity can obtain a Media Access Control (MAC) Control Element (CE) from the network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for the secondary cell. For example, the MAC CE could be a new MAC CE as previously described (e.g., a new SCell activation / deactivation MAC CE based on two octets of example format 1600, or a new SCell activation / deactivation MAC CE based on eight octets of example format 1700). For example, the plurality of state transition actions for the secondary cell could be referenced... Figure 19 The described state transition action.

[0295] At block 2404, when the state transition action indicated by MAC CE includes a transition to the secondary cell active state, the scheduled entity can transition from the secondary cell deactivated state (e.g., conventional deactivated state) or the secondary cell fast activated state to the secondary cell active state (e.g., conventional activated state).

[0296] At block 2406, when the state transition action indicated by MAC CE includes a transition to the secondary cell deactivation state, the scheduled entity can transition from the secondary cell active state or the secondary cell fast active state to the secondary cell deactivation state.

[0297] At block 2408, the scheduled entity can operate in the secondary cell active state based on the transition to the secondary cell active state, or it can operate in the secondary cell deactivated state based on the transition to the secondary cell deactivated state.

[0298] Figure 25 This is a flowchart illustrating an exemplary process 2500 for a rapid activation state transition to a secondary cell, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2500 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2500 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0299] At block 2502, the scheduled entity can obtain a Media Access Control (MAC) Control Element (CE) from the network. At block 2504, the scheduled entity can transition from a secondary cell deactivation state or a secondary cell activation state to a secondary cell fast activation state based on the MAC CE. In one aspect of this disclosure, the MAC CE can be a new MAC CE as described herein and can be configured to control the fast activation state of the secondary cell. At block 2506, the scheduled entity can operate at least in the secondary cell fast activation state.

[0300] Figure 26 This is a flowchart illustrating an exemplary process 2600 for a rapid activation state transition to a secondary cell, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2600 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2600 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0301] At block 2602, the scheduled entity can detect the expiration of a reduced-power inactivity timer associated with the secondary cell when operating in the secondary cell active state. At block 2604, the scheduled entity can transition to the secondary cell fast active state in response to this detection. At block 2606, the scheduled entity can operate at least in the secondary cell fast active state.

[0302] Figure 27 This is a flowchart illustrating an exemplary process 2700 for a rapid transition to a secondary cell activation state, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2700 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2700 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0303] At block 2702, the scheduled entity can operate in the Radio Resource Control (RRC) connected state for the primary cell. At block 2704, the scheduled entity can detect the addition of a secondary cell. At block 2706, the scheduled entity can directly transition to the secondary cell fast-active state in response to this detection. At block 2708, the scheduled entity can operate at least in the secondary cell fast-active state.

[0304] Figure 28 This is a flowchart illustrating an exemplary process 2800 for a rapid activation state transition to a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2800 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2800 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0305] At block 2802, the scheduled entity can obtain at least a first Media Access Control (MAC) Control Element (CE) and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from the fast activation state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell. At block 2804, the scheduled entity can transition from the deactivated state or the activated state of the secondary cell to the fast activation state based on the first MAC CE, independent of the second MAC CE. At block 2806, the scheduled entity can operate at least in the fast activation state of the secondary cell.

[0306] Figure 29 This is a flowchart illustrating an exemplary process 2900 for a fast activation state transition to a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 2900 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 2900 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0307] At block 2902, the scheduled entity can obtain at least a first Media Access Control (MAC) control element (CE) and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from the fast activation state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell. At block 2904, the scheduled entity can transition from the fast activation state to the secondary cell deactivation state or the secondary cell activation state based on the second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state. At block 2906, the scheduled entity can operate in either the secondary cell deactivation state or the secondary cell activation state.

[0308] Figure 30 This is a flowchart illustrating an exemplary process 3000 for a rapid activation state transition to a secondary cell, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3000 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3000 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0309] At block 3002, the scheduled entity can obtain at least a first Media Access Control (MAC) control element (CE) and a second MAC CE from the network, wherein the first MAC CE controls the transition to / from the fast activation state of the secondary cell, and wherein the second MAC CE controls the activation and deactivation of the secondary cell. At block 3004, the scheduled entity can transition from the deactivated state to the activated state of the secondary cell based on the second MAC CE, or transition from the activated state to the deactivated state of the secondary cell based on the second MAC CE, wherein the first MAC CE indicates a transition out of the fast activation state. At block 3006, the scheduled entity can operate in either the activated or deactivated state of the secondary cell.

[0310] Figure 31 This is a flowchart illustrating an exemplary process 3100 according to some aspects of this disclosure. As described below, some or all of the illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations of the embodiments. In some examples, process 3100 may be... Figure 5The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3100 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0311] At block 3102, the scheduled entity can obtain a Media Access Control (MAC) Control Element (CE) from the network. In one aspect of this disclosure, the MAC CE can be a new MAC CE as described herein and can be configured to control the transition to / from the fast activation state of the secondary cell. At block 3104, the scheduled entity can transition from the secondary cell active state to the secondary cell fast activation state, or vice versa, at least based on the MAC CE. At block 3106, the scheduled entity can operate in either the secondary cell fast activation state or the secondary cell active state.

[0312] Figure 32 This is a flowchart illustrating an exemplary process 3200 for a rapid activation state transition to a secondary cell, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3200 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3200 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0313] At block 3202, the scheduled entity can obtain a Media Access Control (MAC) control element (CE) from the network. In one aspect of this disclosure, the MAC CE can be a novel MAC CE as described herein and can be configured to control the transition to / from the fast activation state of the secondary cell. At block 3204, the scheduled entity can transition from the secondary cell active state to the secondary cell fast activation state at least based on the MAC CE. At block 3206, the scheduled entity can operate in the secondary cell fast activation state.

[0314] Figure 33 This is a flowchart illustrating an exemplary process 3300 for transitioning to a secondary cell sleep state, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3300 may be... Figure 5The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3300 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0315] At block 3302, the scheduled entity can obtain a Media Access Control (MAC) control element (CE) from the network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for the secondary cell. In some aspects, the MAC CE includes a one-bit value corresponding to the secondary cell, wherein the one-bit value indicates a transition to the secondary cell's dormant state. For example, the MAC CE can be a new MAC CE as previously described (e.g., a new SCell activation / deactivation MAC CE based on two octets of example format 1600, or a new SCell activation / deactivation MAC CE based on eight octets of example format 1700). For example, the plurality of state transition actions for the secondary cell can be referenced... Figure 19 The described state transition action.

[0316] At block 3304, the scheduled entity can transition to the secondary cell dormant state when the state transition action indicated by the MAC CE includes a transition to the secondary cell dormant state. For example, the scheduled entity can transition from the secondary cell deactivation state or the secondary cell activation state to the secondary cell dormant state. For example, the state transition action indicated by the MAC CE can be represented by C. i C i The value '01' is used to indicate this.

[0317] At block 3306, the scheduled entity can operate in a secondary cell dormant state. In some aspects, when operating in a secondary cell dormant state, the scheduled entity avoids monitoring at least one downlink control channel. In some aspects, when operating in a secondary cell dormant state, the scheduled entity avoids transmitting data between the scheduled entity and the network.

[0318] Figure 34 This is a flowchart illustrating an exemplary process 3400 for a scheduled entity, based on some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3400 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3400 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0319] At block 3402, the scheduled entity can obtain a Media Access Control (MAC) Control Element (CE) from the network, wherein the MAC CE is configured to control the activation and deactivation of the secondary cell. For example, the MAC CE can be a conventional MAC CE as described herein.

[0320] At block 3404, when the MAC CE includes an indication to switch to the secondary cell deactivation state, the scheduled entity can switch from the secondary cell dormant state to the secondary cell deactivation state.

[0321] At block 3406, the scheduled entity can operate in the deactivated state of the secondary cell.

[0322] Figure 35 This is a flowchart illustrating an exemplary process 3500 for transitioning the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3500 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3500 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0323] At block 3502, the scheduled entity can obtain a first Media Access Control (MAC) Control Element (CE) and a second MAC CE from the network, wherein the first and second MAC CEs are configured to indicate one of a plurality of state transition actions for the secondary cell, wherein the first MAC CE is configured to control the transition to a dormant state of the secondary cell, and the second MAC CE is configured to control the activation and deactivation of the secondary cell. For example, the first MAC CE may be a new MAC CE as described herein, and the second MAC CE may be a conventional MAC CE as described herein. For example, the plurality of state transition actions for the secondary cell may be referenced... Figure 19 The described state transition action.

[0324] At block 3504, when the first MAC CE includes an indication to switch to the secondary cell dormant state and the second MAC CE includes an indication to switch to the secondary cell active state or the secondary cell deactivated state, the scheduled entity can switch from the secondary cell active state or the secondary cell deactivated state to the secondary cell dormant state.

[0325] At block 3506, the scheduled entity can operate in the dormant state of the secondary cell.

[0326] Figure 36This is a flowchart illustrating an exemplary process 3600 for switching the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all of the illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3600 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3600 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0327] At block 3602, the scheduled entity can obtain a first Media Access Control (MAC) Control Element (CE) and a second MAC CE from the network, wherein the first and second MAC CEs are configured to indicate one of a plurality of state transition actions for the secondary cell, wherein the first MAC CE is configured to control the transition to a dormant state of the secondary cell, and the second MAC CE is configured to control the activation and deactivation of the secondary cell. For example, the first MAC CE may be a new MAC CE as described herein, and the second MAC CE may be a conventional MAC CE as described herein.

[0328] At block 3604, the scheduled entity may switch from the secondary cell dormant state to the secondary cell active state when the first MAC CE does not include an indication to switch to the secondary cell dormant state and the second MAC CE includes an indication to switch to the secondary cell active state.

[0329] At block 3606, the scheduled entity may switch from the secondary cell dormant state to the secondary cell deactivated state when the first MAC CE does not include an indication to switch to the secondary cell dormant state and the second MAC CE includes an indication to switch to the secondary cell deactivated state.

[0330] At block 3608, the scheduled entity can operate in the secondary cell active state based on the transition to the secondary cell active state, or it can operate in the secondary cell deactivated state based on the transition to the secondary cell deactivated state.

[0331] Figure 37 This is a flowchart illustrating an exemplary process 3700 for switching the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all of the illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3700 may be... Figure 5The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3700 can be executed by any suitable means or unit for performing the functions or algorithms described below. It should be understood that: in Figure 37 In the middle, the squares indicated by dashed lines represent selectable squares.

[0332] At block 3702, the scheduled entity can obtain a first Media Access Control (MAC) Control Element (CE) and a second MAC CE from the network. The first and second MAC CEs are configured to indicate one of a plurality of state transition actions for the secondary cell. Specifically, the first MAC CE is configured to control the transition to a dormant state of the secondary cell, and the second MAC CE is configured to control the activation and deactivation of the secondary cell. For example, the first MAC CE may be a new MAC CE as described herein, and the second MAC CE may be a conventional MAC CE as described herein.

[0333] At block 3704, when the first MAC CE does not include an indication to switch to the secondary cell dormant state and the second MAC CE includes an indication to switch to the secondary cell active state, the scheduled entity can switch from the secondary cell deactivated state to the secondary cell active state.

[0334] At block 3706, the scheduled entity may switch from the secondary cell active state to the secondary cell deactivated state when the first MAC CE does not include an indication to switch to the secondary cell dormant state and the second MAC CE includes an indication to switch to the secondary cell deactivated state.

[0335] At block 3708, the scheduled entity can operate in the secondary cell active state based on the transition to the secondary cell active state, or in the secondary cell deactivated state based on the transition to the secondary cell deactivated state.

[0336] Figure 38 This is a flowchart illustrating an exemplary process 3800 for switching the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all of the illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3800 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3800 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0337] At block 3802, the scheduled entity can obtain a Media Access Control (MAC) Control Element (CE) from the network, wherein the MAC CE is configured to indicate any one of a plurality of state transition actions for the secondary cell.

[0338] At block 3804, the scheduled entity can obtain a first logical channel identifier (LCID) value indicating whether the MAC CE is in a dormant state activated / deactivated based on an octet format, or it can obtain a second LCID value indicating whether the MAC CE is in a dormant state activated / deactivated based on a four-octet format.

[0339] At block 3806, the scheduled entity can identify the MAC CE corresponding to the secondary cell based on either an octet format or a four-octet format.

[0340] Figure 39 This is a flowchart illustrating an exemplary process 3900 for transitioning the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 3900 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 3900 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0341] At block 3902, the scheduled entity can receive a Radio Resource Control (RRC) connection reconfiguration message, which includes an indication to add a secondary cell to a secondary cell active state or a secondary cell dormant state.

[0342] At block 3904, the scheduled entity can directly switch to the secondary cell active state or the secondary cell dormant state based on the instruction.

[0343] Figure 40 This is a flowchart illustrating an exemplary process 4100 for switching the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 4100 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 4100 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0344] At block 4002, the scheduled entity can receive a Radio Resource Control (RRC) Connection Reconfiguration message, which includes an indication to release the secondary cell.

[0345] At block 4004, the scheduled entity can release the secondary cell from its dormant state. For example, the scheduled entity can release the secondary cell from its dormant state in response to an RRC connection reconfiguration message that includes an indication to release the secondary cell.

[0346] Figure 41 This is a flowchart illustrating an exemplary process 4100 for switching the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 4100 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 4100 may be executed by any suitable means or unit for performing the functions or algorithms described below.

[0347] At block 4102, the scheduled entity can configure the secondary cell to deactivate the timer.

[0348] At block 4104, the scheduled entity can switch from the secondary cell dormant state to the secondary cell deactivation state when the secondary cell deactivation timer expires.

[0349] Figure 42 This is a flowchart illustrating an exemplary process 4200 for transitioning the operational state of a secondary cell, according to some aspects of this disclosure. As described below, some or all illustrated features may be omitted in certain implementations within the scope of this disclosure, and some illustrated features may be unnecessary for all implementations. In some examples, process 4200 may be... Figure 5 The scheduled entity 500 (e.g., UE) shown is responsible for execution. In some examples, process 4200 can be executed by any suitable means or unit for performing the functions or algorithms described below. It should be understood that: in Figure 33 In the middle, the squares indicated by dashed lines represent selectable squares.

[0350] At block 4202, the scheduled entity can configure a secondary cell inactivity timer for the secondary cell, wherein the secondary cell inactivity timer controls the transition from the secondary cell active state to the secondary cell dormant state.

[0351] At block 4204, the scheduled entity can make the secondary cell inactive timer take higher priority than at least one other timer configured for the secondary cell.

[0352] At block 4206, the scheduled entity can switch from the secondary cell active state to the secondary cell dormant state when the secondary cell inactivity timer expires.

[0353] In one configuration, the apparatus 500 for wireless communication includes a unit for obtaining a MAC CE from a network. The MAC CE can be configured to indicate any one of a plurality of state transition actions for a secondary cell.

[0354] The apparatus 500 for wireless communication may further include: a unit for switching to a secondary cell sleep state when a state transition action indicated by a MAC CE includes a transition to a secondary cell sleep state; a unit for switching from a secondary cell sleep state to a secondary cell deactivation state when the MAC CE includes an indication to switch to a secondary cell deactivation state; a unit for switching from a secondary cell active state or a secondary cell deactivation state to a secondary cell sleep state when a first MAC CE includes an indication to switch to a secondary cell sleep state and a second MAC CE includes an indication to switch to a secondary cell active state or a secondary cell deactivation state; a unit for switching from a secondary cell sleep state to a secondary cell active state when the first MAC CE does not include an indication to switch to a secondary cell sleep state and the second MAC CE includes an indication to switch to a secondary cell active state; a unit for switching from a secondary cell sleep state to a secondary cell active state when the first MAC CE does not include an indication to switch to a secondary cell sleep state and the second MAC CE includes an indication to switch to a secondary cell deactivation state; and a unit for switching from a secondary cell sleep state to a secondary cell deactivation state when the first MAC CE does not include an indication to switch to a secondary cell sleep state and the second MAC CE includes an indication to switch to a secondary cell deactivation state. The CE includes a unit for transitioning from a secondary cell deactivation state to a secondary cell activation state when it includes an indication to transition to a secondary cell active state; a unit for transitioning from a secondary cell active state to a secondary cell deactivation state when the first MAC CE does not include an indication to transition to a secondary cell dormant state and the second MAC CE includes an indication to transition to a secondary cell deactivation state; a unit for directly transitioning to a secondary cell active state or a secondary cell dormant state based on the indication; a unit for transitioning from a secondary cell dormant state to a secondary cell deactivation state when the secondary cell deactivation timer expires; and / or a unit for transitioning from a secondary cell active state to a secondary cell dormant state when the secondary cell inactivity timer expires.

[0355] The apparatus 500 for wireless communication may further include a unit for transitioning to a secondary cell fast activation state (also known as a secondary cell dormant state) when a state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state. The apparatus 500 for wireless communication may further include a unit for transitioning from a secondary cell deactivation state or a secondary cell fast activation state to a secondary cell activation state when a state transition action indicated by the MAC CE includes a transition to a secondary cell activation state. The apparatus 500 for wireless communication may further include a unit for transitioning from a secondary cell activation state or a secondary cell fast activation state to a secondary cell deactivation state when a state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state.

[0356] The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell active state to a secondary cell fast active state when a state transition action indicated by the MAC CE includes a transition to a secondary cell fast active state. The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell fast active state to a secondary cell active state when a state transition action indicated by the MAC CE includes a transition to a secondary cell active state. The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell active state to a secondary cell deactivation state when a state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state.

[0357] The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell active state to a secondary cell deactivation state when a state transition action indicated by the MAC CE includes a transition to a secondary cell deactivation state. The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell active state to a secondary cell fast activation state when a state transition action indicated by the MAC CE includes a transition to a secondary cell fast activation state. The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell fast activation state to a secondary cell active state when a state transition action indicated by the MAC CE includes a transition to a secondary cell active state.

[0358] The apparatus 500 for wireless communication may further include: a unit for transitioning from a secondary cell fast activation state to a secondary cell deactivation state when a state transition action indicated by a MAC CE includes a transition to a secondary cell deactivation state. The apparatus 500 for wireless communication may further include: a unit for obtaining a second MAC CE from the network in a subframe. The apparatus 500 for wireless communication may further include: a unit for discarding the second MAC CE.

[0359] The apparatus 500 for wireless communication may further include a unit for operating in a secondary cell fast activation state (also known as a secondary cell dormant state). The apparatus 500 for wireless communication may further include a unit for operating in a secondary cell active state based on a transition to a secondary cell active state, or operating in a secondary cell deactivation state based on a transition to a secondary cell deactivation state. The apparatus 500 for wireless communication may further include a unit for operating in a secondary cell fast activation state based on a transition to a secondary cell fast activation state, or operating in a secondary cell active state based on a transition to a secondary cell active state.

[0360] The apparatus 500 for wireless communication may further include: a unit for operating in a secondary cell deactivation state based on a transition to a secondary cell deactivation state, or operating in a secondary cell activation state based on a transition to a secondary cell activation state. The apparatus 500 for wireless communication may further include: a unit for operating in a secondary cell activation state based on a transition to a secondary cell activation state, or operating in a secondary cell deactivation state based on a transition to a secondary cell deactivation state.

[0361] The apparatus 500 for wireless communication may further include: a unit for operating in a secondary cell active state based on a transition to a secondary cell active state, or operating in a secondary cell deactivated state based on a transition to a secondary cell deactivated state.

[0362] The apparatus 500 for wireless communication may further include: a unit for obtaining an LCID value indicating that the MAC CE is a fast-activated / deactivated MAC CE, wherein the fast-activated / deactivated MAC CE supports a two-octet format or an eight-octet format. The apparatus 500 for wireless communication may further include: a unit for determining whether to use a two-octet format or an eight-octet format based on the value of pre-selected bits in the MAC CE. The apparatus 500 for wireless communication may further include: a unit for obtaining a first LCID value indicating that the MAC CE is a sleep-activated / deactivated MAC CE based on an eight-octet format, or obtaining a second LCID value indicating that the MAC CE is a sleep-activated / deactivated MAC CE based on a four-octet format.

[0363] The apparatus 500 for wireless communication may further include a unit for identifying a MAC CE corresponding to a secondary cell based on an octet format or a four-octet format.

[0364] The apparatus 500 for wireless communication may further include: a unit for receiving an RRC connection reconfiguration message. The apparatus 500 for wireless communication may further include: a unit for configuring a secondary cell deactivation timer. The apparatus 500 for wireless communication may further include: a unit for configuring a secondary cell inactivity timer for the secondary cell, wherein the secondary cell inactivity timer controls the transition from a secondary cell active state to a secondary cell dormant state. The apparatus 500 for wireless communication may further include: a unit for prioritizing the secondary cell inactivity timer above at least one other timer configured for the secondary cell. The apparatus 500 for wireless communication may further include: a unit for releasing the secondary cell from the secondary cell dormant state.

[0365] In one aspect, the aforementioned unit may be Figure 5 The processor 504 shown is configured to perform the functions listed by the above-described units. In another aspect, the above-described units may be circuits or any means configured to perform the functions described in the above-described units.

[0366] Of course, the above examples are merely examples of circuitry included in processor 504, and other units for performing the described functions may be included within various aspects of this disclosure, including but not limited to instructions stored in computer-readable storage medium 506, or in... Figure 1 and / or Figure 2 Any other suitable device or unit described in any of the figures, and utilizing, for example, those described herein. Figures 23-42 The described process and / or algorithm.

[0367] Several aspects of wireless communication networks have been described with reference to exemplary implementation systems. As will be readily understood by those skilled in the art, the various aspects described throughout this disclosure can be extended to other telecommunications systems, network architectures, and communication standards.

[0368] For example, various aspects can be implemented within other systems defined by 3GPP, such as LTE, Evolved Packet System (EPS), Universal Mobile Telecommunications System (UMTS), and / or Global System for Mobile Communications (GSM). These aspects can also be extended to systems defined by 3GPP2, such as CDMA2000 and / or Evolved Data Optimized (EV-DO). Other examples can be implemented within systems employing IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Ultra Wideband (UWB), Bluetooth, and / or other suitable systems. The actual telecommunications standards, network architecture, and / or communication standards used will depend on the specific application and the overall design constraints imposed on the system.

[0369] In this disclosure, the term "exemplary" means "serving as an example, instance, or illustration." Any implementation or aspect described herein as "exemplary" is not necessarily to be construed as preferred or superior to other aspects. Similarly, the term "aspect" does not require that all aspects of this disclosure include the features, advantages, or modes of operation discussed. The term "coupled" is used herein to refer to direct or indirect coupling between two objects. For example, if object A is physically in contact with object B, and object B is in contact with object C, then objects A and C are considered coupled to each other even if they are not physically in direct contact. For example, a first object may be coupled to a second object even if the first object never physically contacts the second object. As used herein, the term "acquire" can include one or more actions, including but not limited to receiving and / or acquiring. The terms "circuit" and "circuit system" are used broadly and are intended to include both hardware implementations of electronic devices and conductors (capable of performing the functions described in this disclosure when connected and configured, without limitation on the type of electronic circuit) and software implementations of information and instructions (capable of performing the functions described in this disclosure when executed by a processor).

[0370] Can Figures 1-42 One or more of the components, steps, features, and / or functions shown herein may be rearranged and / or combined into a single component, step, feature, or function, or embodied in several components, steps, features, or functions. Additional elements, components, steps, and / or functions may be added without departing from the novel features disclosed herein. Figure 1-42 The apparatus, devices, and / or components shown herein can be configured to perform one or more of the methods, features, or steps described herein. The novel algorithms described herein can also be efficiently implemented in software and / or embedded in hardware.

[0371] It should be understood that the specific order or hierarchy of steps in the disclosed methods is an illustration of exemplary methods. It should be understood that the specific order or hierarchy of steps in these methods can be rearranged according to design preferences. The appended method claims give the elements of various steps in an exemplary order, and unless specifically stated herein, are not intended to limit us to the given specific order or hierarchy.

[0372] The foregoing description is provided to enable any person skilled in the art to implement the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not limited to the aspects shown herein, but are consistent with the entire scope of protection of the claim language, wherein, unless otherwise specified, the singular form of an element does not mean "one and only one," but rather "one or more." Unless otherwise specified, the term "some" refers to one or more. The phrase "at least one" referring to the list of items means any combination of these items, including a single member. For example, "at least one of a, b, or c" is intended to cover: a; b; c; a and b; a and c; b and c; a, b, and c. All structures and functions known or to be known by one of ordinary skill in the art that are equivalent to the elements throughout the various aspects described herein are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, whether or not this disclosure is expressly recited in the claims, the disclosure herein is not intended to be offered to the public.

Claims

1. A wireless communication method for a scheduled entity, comprising: Receive a Radio Resource Control (RRC) connection reconfiguration message, the RRC connection reconfiguration message including an indication to add a secondary cell from an RRC connection state in which the secondary cell has not yet been added to a secondary cell dormant state or an indication to release the secondary cell from the secondary cell dormant state; and Based on the RRC connection reconfiguration message, the system can directly transition from the RRC connection state to the secondary cell dormant state or release the secondary cell from the secondary cell dormant state to the RRC connection state.

2. The wireless communication method according to claim 1, further comprising: Configure a secondary cell deactivation timer for the secondary cell; as well as When the secondary cell deactivation timer expires, the secondary cell transitions from the dormant state to the deactivation state.

3. The wireless communication method according to claim 1, further comprising: Configure a secondary cell inactivity timer for the secondary cell, wherein the secondary cell inactivity timer controls the transition from the secondary cell active state to the secondary cell dormant state; and When the secondary cell inactivity timer expires, the secondary cell transitions from the active state to the dormant state.

4. The wireless communication method according to claim 3, further comprising: The inactive timer for the secondary cell is given a higher priority than at least one other timer configured for the secondary cell.

5. An apparatus for wireless communication, comprising: At least one processor; A transceiver communicatively coupled to the at least one processor; as well as Memory, which is communicatively coupled to the at least one processor, Wherein, the at least one processor is configured to: Receive a Radio Resource Control (RRC) connection reconfiguration message, the RRC connection reconfiguration message including an indication to add a secondary cell from an RRC connection state in which the secondary cell has not yet been added to a secondary cell dormant state or an indication to release the secondary cell from the secondary cell dormant state; and Based on the RRC connection reconfiguration message, the system can directly transition from the RRC connection state to the secondary cell dormant state or release the secondary cell from the secondary cell dormant state to the RRC connection state.

6. The apparatus according to claim 5, wherein, The at least one processor is further configured to: Configure the secondary cell deactivation timer for the secondary cell; and When the secondary cell deactivation timer expires, the secondary cell transitions from the dormant state to the deactivation state.

7. The apparatus according to claim 5, wherein, The at least one processor is further configured to: Configure a secondary cell inactivity timer for the secondary cell, wherein the secondary cell inactivity timer controls the transition from the secondary cell active state to the secondary cell dormant state; and When the secondary cell inactivity timer expires, the secondary cell transitions from the active state to the dormant state.

8. The apparatus according to claim 7, wherein, The at least one processor is further configured to: The inactive timer for the secondary cell is given a higher priority than at least one other timer configured for the secondary cell.

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