Individual cell signaling for L1 / L2 inter-cell mobility

Abstract

Example implementations include a method, an apparatus, and a computer readable medium for wireless communication by a user equipment, comprising receiving a Layer 1 / Layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells. The implementations also include measuring a signal from each cell in the configured set of cells according to the measurement configuration. Additionally, these implementations also include transmitting a measurement report comprising measurement information based on signals measured from each active cell in the configured set of cells.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. patent application serial number 17 / 833,630, entitled “INDIVIDUAL CELL SIGNALING FOR L1 / L2 INTER-CELLMOBILITY” and filed on June 6, 2022, which is assigned to the assignee of this application and is incorporated herein by reference in its entirety. Background Art Technical Field

[0003] The present disclosure relates generally to communication systems and, more particularly, to cell signaling for inter-cell mobility.

[0004] introduction

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcast. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0006] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continued mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Certain aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard.

[0007] Further improvements are needed for 5G NR technology. In addition, these improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies. For example, it is desirable to improve efficiency and latency related to mobility of user equipment (UE) communicating with network entities. Summary of the invention

[0008] The following presents the summary of one or more aspects in order to provide a basic understanding of these aspects. This summary is not an extensive overview of all contemplated aspects, and is neither intended to identify the key or important elements of all aspects, nor to describe the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0009] One example aspect includes a method of wireless communication by a user equipment, the method comprising: receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The method also includes measuring a signal from each cell in the configured cell set according to the measurement configuration. Additionally, the method also includes sending a measurement report including measurement information based on a signal measured from each activated cell in the configured cell set.

[0010] Another example aspect includes an apparatus for wireless communication by a user equipment, the apparatus comprising a memory and a processor coupled to the memory. The processor is configured to: receive a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The processor is further configured to measure a signal from each cell in the configured cell set according to the measurement configuration. Additionally, the processor is further configured to send a measurement report including measurement information based on a signal measured from each activated cell in the configured cell set.

[0011] Another example aspect includes an apparatus for wireless communication by a user equipment, the apparatus comprising: a component for receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The apparatus also includes a component for measuring a signal from each cell in the configured cell set according to the measurement configuration. Additionally, the apparatus also includes a component for sending a measurement report including measurement information based on a signal measured from each activated cell in the configured cell set.

[0012] Another example aspect includes a computer-readable medium including stored instructions for wireless communication by a user equipment, wherein the instructions are executable by a processor to receive a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The instructions are also executable to measure a signal from each cell in the configured cell set according to the measurement configuration. Additionally, the instructions are also executable to send a measurement report including measurement information based on a signal measured from each activated cell in the configured cell set.

[0013] An example aspect includes a method for wireless communication by a network entity, the method comprising: sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured cell set, a secondary cell configuration for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The method also includes receiving a measurement report including measurement information based on a signal measured by the UE from each activated cell in the configured cell set according to the measurement configuration. Additionally, the method also includes generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell. Additionally, the method also includes sending the activation update configuration via an L1 / L2 message.

[0014] Another example aspect includes an apparatus for wireless communication by a network entity, the apparatus comprising a memory and a processor coupled to the memory. The processor is configured to: send a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured cell set, a secondary cell configuration for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The processor is further configured to: receive a measurement report including measurement information based on a signal measured by the UE from each activated cell in the configured cell set according to the measurement configuration. Additionally, the processor is further configured to: generate an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell. Additionally, the processor is further configured to send the activation update configuration via an L1 / L2 message.

[0015] Another example aspect includes an apparatus for wireless communication by a network entity, the apparatus comprising: a component for sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured cell set, a secondary cell configuration for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The apparatus also includes a component for receiving a measurement report including measurement information based on a signal measured by the UE from each activated cell in the configured cell set according to the measurement configuration. Additionally, the apparatus also includes a component for generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell. Additionally, the apparatus also includes a component for sending the activation update configuration via an L1 / L2 message.

[0016] Another example aspect includes a computer-readable medium including stored instructions for wireless communication by a network entity, wherein the instructions are executable by a processor to send a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured cell set, a secondary cell configuration for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The instructions are also executable to receive a measurement report including measurement information based on a signal measured by the UE from each activated cell in the configured cell set according to the measurement configuration. Additionally, the instructions are also executable to generate an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell. Additionally, the instructions are also executable to send the activation update configuration via an L1 / L2 message.

[0017] To achieve the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail some illustrative features of one or more aspects. However, these features are merely indicative of some of the various ways in which the principles of the various aspects may be employed, and this specification is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A is a diagram illustrating an example of a wireless communication system and an access network.

[0019] Figure 1B is a diagram illustrating an example of a decomposed base station architecture according to various aspects of the present disclosure.

[0020] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0021] Figure 2B is a diagram illustrating an example of DL channels within a subframe according to various aspects of the present disclosure.

[0022] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0023] Figure 2D is a diagram illustrating an example of UL channels within a subframe according to various aspects of the present disclosure.

[0024] Figure 3is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0025] Figure 4 is a diagram illustrating an example of a cell set for L1 / L2 mobility configuration.

[0026] Figure 5A is a diagram illustrating an example of a cell set of a carrier aggregation configuration according to various aspects of the present disclosure.

[0027] Figure 5B is an example of a serving cell configuration according to various aspects of the present disclosure.

[0028] Figure 5C is an example of L1 / L2 mobility configuration according to various aspects of the present disclosure.

[0029] Figure 5D is an example of L1 / L2 mobility configuration according to various aspects of the present disclosure.

[0030] Figure 5E is an example of L1 / L2 mobility configuration according to various aspects of the present disclosure.

[0031] Fig. 5F is an example of a cell group configuration according to various aspects of the present disclosure.

[0032] Figure 5G is an example of an index field according to various aspects of the present disclosure.

[0033] Figure 5H is an example of a cell group configuration according to various aspects of the present disclosure.

[0034] Fig.5I is an example of an index field according to various aspects of the present disclosure.

[0035] Figure 6 is a diagram illustrating an example of a hardware implementation for an example apparatus.

[0036] Figure 7 is a flow chart of a method of wireless communication.

[0037] Figure 8 is a flow chart of a method of wireless communication.

[0038] Fig. 9 is a flow chart of a method of wireless communication.

[0039] Fig.10 is a flow chart of a method of wireless communication.

[0040] Fig.11 is a flow chart of a method of wireless communication.

[0041] Fig.12 is a diagram illustrating another example of a hardware implementation for another example apparatus.

[0042] Fig.13 is a flow chart of a method of wireless communication.

[0043] Fig.14 is a flow chart of a method of wireless communication.

[0044] Fig.15 is a flow chart of a method of wireless communication. DETAILED DESCRIPTION

[0045] The specific embodiments described below in conjunction with the accompanying drawings are intended as descriptions of various configurations and are not intended to represent the only configurations with which the concepts described herein can be practiced. In order to provide a thorough understanding of the various concepts, the specific embodiments include specific details. However, it is 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 blurring these concepts.

[0046] Existing techniques for updating a primary cell of a user equipment (UE) during inter-cell mobility of the user equipment require a radio resource configuration (RRC) reconfiguration to be performed by a network entity. However, the RRC reconfiguration is layer 3 signaling, and in situations where the UE is moving rapidly and / or in situations where the latency requirements of the UE require a constant control connection and data connection with the primary cell when the UE is moving, the latency of the layer 3 signaling may prevent the UE from successfully updating to a new primary cell.

[0047] Therefore, the technology described herein reduces the latency of the UE updating to a new primary cell by using layer 1 / layer 2 (L1 / L2) signaling from a network entity to reduce mobility latency. In one aspect, the L1 / L2 signaling is an L1 / L2 mobility configuration including at least a primary cell configuration for each secondary cell and at least a secondary cell configuration for each primary cell, which allows the UE to quickly switch from one primary cell to another primary cell (because the UE already has these configurations). On the other hand, the L1 / L2 signaling is an L1 / L2 mobility configuration including both the primary cell configuration and the secondary cell configuration for all primary cells and secondary cells, which also allows the UE to quickly switch from one primary cell to another primary cell (because the UE already has these configurations). Additional aspects are described below.

[0048] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0049] As an example, an element, or any part of an element, or any combination of elements can be implemented as a "processing system", which includes one or more processors. The example of a processor includes a microprocessor, a microcontroller, a graphics processing unit (GPU), a central processing unit (CPU), an application processor, a digital signal processor (DSP), a reduced instruction set computing (RISC) processor, a system on a chip (SoC), a baseband processor, a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, a gate logic piece, a discrete hardware circuit and other suitable hardware configured to perform various functions described throughout the present disclosure. One or more processors in a processing system can execute software. Whether it is referred to as software, firmware, middleware, microcode, hardware description language or other names, software should be widely interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes, functions, etc.

[0050] Therefore, in one or more example embodiments, the described functions can be implemented with hardware, software or any combination thereof. If implemented with software, the functions can be stored or encoded on a computer-readable medium as one or more instructions or codes. Computer-readable media include computer storage media. Storage media can be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage device, magnetic disk storage device, other magnetic storage devices, a combination of computer-readable media of the above type, or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer.

[0051] Figure 1A is a diagram illustrating an example of a wireless communication system 100 (also referred to as a wireless wide area network (WWAN)) that includes a base station 102 (also referred to herein as a network entity), a user equipment (UE) 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)).

[0052] One or more UEs 104 may include a layer 1 / layer 2 (L1 / L2) configuration component 198, and one or more base stations 102 / 180 may be configured to include an L1 / L2 configuration component 199, wherein the L1 / L2 configuration component 198 and the L1 / L2 configuration component 199 are operable to perform L1 / L2 techniques for UE mobility latency reduction (such as for inter-cell mobility).

[0053] At one or more UEs 104, and additionally with reference to Figure 6 , the L1 / L2 configuration component 198 includes a receiving component 620 configured to receive a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in the configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. In addition, the L1 / L2 configuration component 198 includes a measurement component 625 configured to measure a signal from each cell in the configured cell set according to the measurement configuration. Additionally, the L1 / L2 configuration component 198 includes a sending component 630 configured to send a measurement report including measurement information based on a signal measured from each activated cell in the configured cell set. In addition, in some optional or additional aspects, the L1 / L2 configuration component 198 may include a switching component 640, which is configured to switch the use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration, including switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0054] At one or more base stations 102 / 180 (or network entities), and additionally with reference to Fig.12, the L1 / L2 configuration component 199 includes a sending component 1220 configured to send a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in the configured cell set to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured cell set, a secondary cell configuration for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. The sending component 1220 can be configured to send the activation update configuration via an L1 / L2 message. Additionally, the L1 / L2 configuration component 199 includes a receiving component 1225 configured to receive a measurement report including measurement information based on a signal measured by the UE from each activated cell in the configured cell set according to the measurement configuration. In addition, the L1 / L2 configuration component 199 includes a generation component 1230 configured to generate an activation update configuration based on the measurement report, and the activation update configuration indicates at least one of the following items: the first cell in the configured cell set is changed from the corresponding primary cell to the corresponding secondary cell, or the second cell in the configured cell set is changed from the corresponding secondary cell to the corresponding primary cell.

[0055] Base station (or network entity) 102 may include macro cells (high-power cellular base stations) and / or small cells (low-power cellular base stations). Macro cells include base stations. Small cells include femto cells, pico cells, and micro cells. Base station 102 may be configured as a decomposed RAN (D-RAN) or open RAN (O-RAN) architecture, in which functionality is split between multiple units (such as a central unit (CU), one or more distributed units (DUs), or radio units (RUs)). Such an architecture may be configured to utilize a protocol stack that is logically split between one or more units (such as one or more CUs and one or more DUs). In some aspects, a CU may be implemented within an edge RAN node, and in some aspects, one or more DUs may be co-located with a CU, or may be geographically distributed in one or more RAN nodes. A DU may be implemented to communicate with one or more RUs. Any decomposed component in a D-RAN and / or O-RAN architecture may be referred to as a network entity herein.

[0056] The base station 102 configured for 4G Long Term Evolution (LTE) (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). The base station 102 configured for 5G New Radio (NR) (collectively referred to as Next Generation RAN (NG-RAN)) can interface with the core network 190 via a second backhaul link 184. Among other functions, the base station 102 can also perform one or more of the following functions: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other directly or indirectly (eg, via the EPC 160 or the core network 190) via the third backhaul link 134 (eg, an X2 interface). The first backhaul link 132, the second backhaul link 184, and the third backhaul link 134 may be wired or wireless.

[0057] Base station 102 can communicate wirelessly with UE 104. Each of base stations 102 can provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' may have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. A network including both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). A communication link 120 between base station 102 and UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from UE 104 to base station 102 and / or a downlink (DL) (also referred to as a forward link) transmission from base station 102 to UE 104. The communication link 120 may use multiple input multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link may be through one or more carriers. For each carrier allocated in the carrier aggregation for up to a total of up to Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 can use a spectrum with a bandwidth of up to Y megahertz (MHz) (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, etc.). The carriers may be adjacent to each other or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0058] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be through a variety of wireless D2D communication systems, such as, for example, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0059] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in, for example, a 5 gigahertz (GHz) unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether a channel is available prior to communication.

[0060] The small cell 102' may operate in licensed and / or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102' may employ NR and use the same unlicensed spectrum (e.g., 5 GHz, etc.) as used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed spectrum may improve the coverage of the access network and / or increase the capacity of the access network.

[0061] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is typically (interchangeably) referred to as the “sub-6 GHz” band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is typically (interchangeably) referred to as the “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0062] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this article, the term "below 6 GHz" and the like can broadly represent frequencies that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" and the like are used in this article, they can broadly represent frequencies that can include mid-band frequencies, can be within FR2, or can be within the EHF band.

[0063] The base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include and / or be referred to as an eNB, a gNodeB (gNB), or another type of base station. Some base stations, such as gNB 180, may operate in the traditional sub-6 GHz spectrum, in millimeter wave frequencies, and / or near millimeter wave frequencies to communicate with the UE 104. When the gNB 180 operates in millimeter wave or near millimeter wave frequencies, the gNB 180 may be referred to as a millimeter wave base station. The millimeter wave base station 180 may utilize beamforming 182 with the UE 104 to compensate for path loss and short range. The base station 180 and the UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming.

[0064] Base station 180 may transmit beamformed signals in one or more transmit directions 182' to UE 104. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182". UE 104 may also transmit beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of base stations 180 / UE 104. The transmit direction and receive direction of base station 180 may be the same or different. The transmit direction and receive direction of UE 104 may be the same or different.

[0065] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, an MBMS gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services. The BM-SC 170 may provide functions for MBMS user service configuration and delivery. BM-SC 170 may serve as an entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services in a public land mobile network (PLMN), and may be used to schedule MBMS delivery. MBMS gateway 168 may be used to distribute MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area of ​​a broadcast specific service, and may be responsible for session management (start / stop) and for collecting eMBMS related billing information.

[0066] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. The AMF 192 may communicate with a unified data management (UDM) 196. The AMF 192 is a control node that handles signaling between the UE 104 and the core network 190. Typically, the AMF 192 provides quality of service (QoS) flows and session management. All user IP packets are delivered through the UPF 195. The UPF 195 provides UE IP address allocation and other functions. The UPF 195 is connected to an IP service 197. The IP service 197 may include the Internet, an intranet, an IMS, a packet switching (PS) streaming media service, and / or other IP services.

[0067] A base station may include and / or be referred to as a network entity, gNB, Node B, eNB, access point, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), transmit receive point (TRP), or some other suitable term. Base station 102 provides an access point to EPC 160 or core network 190 for UE 104. Examples of UE 104 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare equipment, implants, sensors / actuators, displays, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, monitors, cameras, industrial / manufacturing equipment, appliances, vehicles, robots, drones, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also known as Category (CAT)-M, Cat M1) UEs, NB-IoT (also known as CATNB1) UEs, and other types of UEs. In the present disclosure, eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (enhanced further eMTC), mMTC (massive MTC), etc., and NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc. UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0068] Although the present disclosure may focus on 5G NR, the concepts and aspects described herein may be applicable to other similar areas such as LTE, Advanced LTE (LTE-A), Code Division Multiple Access (CDMA), Global System for Mobile Communications (GSM), and / or other wireless / radio access technologies.

[0069] Figure 1B1 is a diagram illustrating an example of a decomposed base station 101 architecture, any component or element of which may be referred to herein as a network entity. The decomposed base station 101 architecture may include one or more central units (CUs) 103, which may communicate directly with a core network 105 via a backhaul link, or indirectly with the core network 105 through one or more decomposed base station units (such as a near real-time (near RT) RAN intelligent controller (RIC) 107 via an E2 link, or a non-real-time (non-RT) RIC 109 associated with a service management and orchestration (SMO) framework 111, or both). The CU 103 may communicate with one or more distributed units (DUs) 113 via corresponding midhaul links (such as an F1 interface). The DU 113 may communicate with one or more radio units (RUs) 115 via corresponding fronthaul links. The RU 115 may communicate with corresponding UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served simultaneously by multiple RUs 115.

[0070] Each of the units (e.g., CU 103, DU 113, RU 115, and near-RT RIC 107, non-RT RIC 109, and SMO framework 111) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of these units or an associated processor or controller that provides instructions to the communication interface of these units may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally, these units may include a wireless interface that may include a receiver, a transmitter, or a transceiver (such as a radio frequency (RF) transceiver) that is configured to receive or send signals, or both, to one or more of the other units on a wireless transmission medium.

[0071] In some aspects, CU 103 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by CU 103. CU 103 may be configured to handle user plane functions (i.e., central unit-user plane (CU-UP)), control plane functions (i.e., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 103 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 103 may be implemented to communicate with DU 113 for network control and signaling.

[0072] DU 113 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 115. In some aspects, DU 113 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) depending at least in part on functional splits such as those defined by the Third Generation Partnership Project (3GPP). In some aspects, DU 113 may also host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 113 or with control functions hosted by CU 103.

[0073] The lower layer functionality may be implemented by one or more RUs 115. In some deployments, the RU 115 controlled by the DU 113 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.), or both, based at least in part on functional splitting (such as lower layer functional splitting). In such an architecture, the RU 115 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some specific implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 115 may be controlled by the corresponding DU 113. In some scenarios, this configuration may enable the implementation of the DU 113 and the CU 103 in a cloud-based RAN architecture (such as a vRAN architecture).

[0074] The SMO framework 111 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 111 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 111 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element lifecycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 103, DU 113, RU 115, and near-RT RIC 107. In some specific implementations, the SMO framework 111 may communicate with hardware aspects of the 4G RAN such as an open eNB (O-eNB) 117 via the O1 interface. Additionally, in some specific implementations, the SMO framework 111 may communicate directly with one or more RUs 115 via the O1 interface. The SMO framework 111 may also include a non-RT RIC 109 configured to support the functionality of the SMO framework 111 .

[0075] The non-RT RIC 109 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 107. The non-RT RIC 109 may be coupled to or communicate with the near-RT RIC 107 (such as via an A1 interface). The near-RT RIC 107 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 103, one or more DUs 113, or both, and the O-eNB with the near-RT RIC 107.

[0076] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 107, the non-RT RIC 109 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 107 and may be received from a non-network data source or from a network function at the SMO framework 111 or the non-RT RIC 109. In some examples, the non-RT RIC 109 or the near-RT RIC 107 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 109 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 111 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0077] FIG. 2A to FIG. 2D is a diagram of various frame structures, resources, and channels used by UE 104 and base station 102 / 180 for communications. Figure 2A FIG200 is a diagram illustrating an example of a first subframe within a 5G NR frame structure. Figure 2B FIG230 is a diagram illustrating an example of DL channels within a 5G NR subframe. Figure 2C FIG250 is a diagram illustrating an example of a second subframe within a 5G NR frame structure. Figure 2D FIG280 is a diagram illustrating an example of an UL channel within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD) (wherein for a particular set of subcarriers (carrier system bandwidth), a subframe within the subcarrier set is dedicated to either DL or UL), or may be time division duplex (TDD) (wherein for a particular set of subcarriers (carrier system bandwidth), a subframe within the subcarrier set is dedicated to both DL and UL). Figure 2A , Figure 2C In the example provided, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (most of which are DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 34 (most of which are UL). Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe may be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are both DL and both UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The slot format is configured for the UE via a received slot format indicator (SFI) (dynamically configured via DL control information (DCI) or semi-statically / statically configured via radio resource control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0078] Other wireless communication technologies may have different frame structures and / or different channels. For example, a 10 millisecond (ms) frame may be divided into 10 equally sized subframes (1 ms). Each subframe may include one or more time slots. A subframe may also include a microslot, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. The symbol on the DL may be a cyclic prefix (CP) orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbol. The symbol on the UL may be a CP-OFDM symbol (for high throughput scenarios) or a discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbol (also known as a single carrier frequency division multiple access (SC-FDMA) symbol) (for power-limited scenarios; limited to single-stream transmission). The number of time slots in a subframe is based on the time slot configuration and parameter set (numerology). For slot configuration 0, different parameter sets μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For slot configuration 1, different parameter sets 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter set μ, there are 14 symbols per slot and 2 per subframe. μ time slots. The subcarrier spacing and symbol length / duration are functions of the parameter set. The subcarrier spacing can be equal to 2 μ *15 kilohertz (kHz), where μ is parameter set 0 to 4. Therefore, the subcarrier spacing for parameter set μ=0 is 15 kHz, and the subcarrier spacing for parameter set μ=4 is 240 kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIG. 2A to FIG. 2D An example is provided for slot configuration 0 with 14 symbols per slot and parameter set μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a frame set, there may be one or more different bandwidth parts (BWPs) that are frequency-division multiplexed (see Figure 2B ). Each BWP can have a specific set of parameters.

[0079] A resource grid may be used to represent a frame structure. Each slot includes a resource block (RB) (also referred to as a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0080] like Figure 2AAs illustrated, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) for channel estimation at the UE (indicated as R for a particular configuration). x , where 100x is the port number, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0081] Figure 2B Examples of various DL channels within a subframe of a frame are illustrated. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE including nine RE groups (REGs), and each REG includes four consecutive REs in an OFDM symbol. The PDCCH within a BWP may be referred to as a control resource set (CORESET). Additional BWPs may be located at higher and / or lower frequencies on the channel bandwidth. The primary synchronization signal (PSS) may be within symbol 2 of a specific subframe of a frame. The PSS is used by UE 104 to determine subframe / symbol timing and physical layer identification. The secondary synchronization signal (SSS) may be within symbol 4 of a specific subframe of a frame. The SSS is used by the UE to determine the physical layer cell identification group number and radio frame timing. Based on the physical layer identification and the physical layer cell identification group number, the UE may determine the physical cell identifier (PCI). Based on the PCI, the UE may determine the position of the aforementioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also referred to as an SS block (SSB)). The MIB provides the system frame number (SFN) and the number of RBs in the system bandwidth. The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent over the PBCH such as the system information block (SIB), and paging messages.

[0082] like Figure 2CAs illustrated, some of the REs carry DM-RS (indicated as R for a particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may send a DM-RS for a physical uplink control channel (PUCCH) and a DM-RS for a physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first or first two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used, the PUCCH DM-RS may be sent in different configurations. The UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of a subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the teeth of the comb. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0083] Figure 2D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) / negative acknowledgement (NACK) feedback. The PUSCH carries data and may additionally be used to carry buffer status reports (BSRs), power headroom reports (PHRs), and / or UCI.

[0084] Figure 31 is a block diagram of hardware components of base station 102 (and / or 180) in wireless communication system 100 in communication with UE 104. In the DL, IP packets from EPC 160 may be provided to controller / processor 375. Controller / processor 375 implements layer 3 and layer 2 functions. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides RRC layer functions associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0085] The transmit (TX) processor 316 and receive (RX) processor 370 implement layer 1 functionality associated with various signal processing functions. Layer 1 (which includes the physical (PHY) layer) may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-order phase shift keying (M-PSK), M-order quadrature amplitude modulation (M-QAM)). The decoded and modulated symbols can then be divided into parallel streams. Subsequently, each stream can be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially pre-coded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes, as well as for spatial processing. Channel estimates may be derived from reference signals and / or channel state feedback sent by the UE 104. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0086] At the UE 104, each receiver 354RX receives a signal through its corresponding antenna 352. Each receiver 354RX recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial streams destined for the UE 104. If multiple spatial streams are destined for the UE 104, they can be combined into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier and the reference signal are recovered and demodulated by determining the most likely signal constellation point sent by the base station 102. These soft decisions can be based on channel estimates calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by the base station 102. The data and control signals are then provided to the controller / processor 359, which implements layer 3 and layer 2 functions.

[0087] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 359 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0088] Similar to the functions described in conjunction with DL transmission performed by the base station 102, the controller / processor 359 provides RRC layer functions associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functions associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with transmission of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0089] The TX processor 368 may use channel estimates derived by the channel estimator 358 from a reference signal or feedback sent by the base station 102 to select appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via corresponding transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0090] UL transmissions are processed at the base station 102 in a manner similar to that described in conjunction with the receiver functionality at the UE 104. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to a RX processor 370.

[0091] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport channels and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets from the UE 104. The IP packets from the controller / processor 375 may be provided to the EPC 160. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0092] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1A For example, the memory 360 may include executable instructions that define the L1 / L2 configuration component 198. The TX processor 368, the RX processor 356, and / or the controller / processor 359 may be configured to execute the L1 / L2 configuration component 198.

[0093] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform operations related to Figure 1A For example, the memory 376 may include executable instructions defining the L1 / L2 configuration component 199. The TX processor 316, the RX processor 370, and / or the controller / processor 375 may be configured to execute the L1 / L2 configuration component 199.

[0094] refer to Figure 4 Currently, a network entity such as a base station 102 / 180 or a component of a D-RAN or O-RAN architecture may configure a cell set 401 of a layer 1 / layer 2 (L1 / L2) mobility configuration to a UE 104 through an RRC configuration 402. For example, the network entity 102 may configure a cell set 401 of an L1 / L2 mobility configuration including cells 410, 412, 414, 416, 418, 420, and 422 for the UE 104. Each of the cells 410, 412, 414, 416, 418, 420, and 422 may operate on a different frequency. In some implementations, one or more cells of the cell set 401 of the L1 / L2 mobility configuration may be a multi-TRP (multi-TRP) cell. For example, as Figure 4As shown, cells 412, 414, 416, and 418 are multi-TRP cells. Each TRP of the multi-TRP cell may operate at a different frequency. For example, for the multi-TRP cell 412, cell 2 is a TRP of the multi-TRP cell 412 operating at a first frequency, and cell 2' is another TRP of the multi-TRP 412 operating at a second frequency. Similarly, for the multi-TRP cell 414, cell 3 is a TRP operating at a third frequency, and cell 3' is another TRP operating at a fourth frequency. In some implementations, the first frequency and the third frequency may be the same frequency, and the second frequency and the fourth frequency may be the same frequency. For the multi-TRP cell 416, cell 4 and cell 4' are different TRPs operating at different frequencies, and for the multi-TRP cell 418, cell 5 and cell 5' are different TRPs operating at different frequencies. In some implementations, cell 4 and / or cell 5 may operate on the same frequency as cell 2 and / or cell 3, and cell 4' and / or cell 5' may operate on the same frequency as cell 2' and / or cell 3'. For a multi-TRP cell, only one frequency may be activated at a time, and the multi-TRP cell may operate using the TRP corresponding to that frequency.

[0095] For cells configured as part of the cell set 401 for L1 / L2 mobility configuration, the network entity 102 may configure cells 412 and 414 as activated cells in the activated cell set 403 and configure the remaining cells as deactivated cells in the deactivated cell set 405 .

[0096] The network entity 102 may configure one of the activated cells as a primary cell (pCell) for the UE 104 and the other cells as secondary cells (sCells). The network entity 102 may send configurations for cells 410, 412, 414, 416, 418, 420, and 422 to the UE 104 via an RRC message or RRC configuration 402. Each cell configuration may include only parameters for its current cell type. For example, if the cell 410 is currently an sCell, the configuration for the cell 410 will include parameters for the sCell but not a pCell configuration or parameters for the pCell. Similarly, if the cell 412 is currently configured as a pCell, the configuration for the cell 412 will include parameters for the pCell but not an sCell configuration or parameters for the sCell configuration.

[0097] Thus, if the pCell for UE 104 needs to be updated to a new cell, the network entity 102 will have to perform an RRC reconfiguration and may again send new or updated configurations for cells 410, 412, 414, 416, 418, 420, and / or 422, wherein the new or updated configurations for the new cells configured as pCells will include parameters for pCell configurations rather than sCell configurations, and the configurations for the cells previously configured as pCells will now include parameters for sCell configurations rather than pCell configurations.

[0098] However, RRC reconfiguration is a Layer 3 (L3) layer configuration or signaling, and when UE 104 is moving rapidly and / or when the latency requirements of UE 104 require a constant control connection and data connection with the pCell while UE 104 is moving, the latency of the L3 configuration or signaling may prevent UE 104 from successfully updating to a new pCell.

[0099] Various aspects described herein relate to techniques for reducing UE mobility latency, and in particular to reducing latency for updating UE 102 to a new pCell by using L1 / L2 signaling 407 (such as activating an update configuration) in conjunction with configuring an alternative configuration for each cell to UE 104. For example, configuring the alternative configuration to UE 102 includes, for example, an RRC configuration 402 that additionally includes at least a primary cell configuration for each secondary cell and at least a secondary cell configuration for each primary cell. In addition, for example, the L1 / L2 signaling 407 including the activation update configuration indicates at least one of the following: a first cell in a set of configured cells is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in a set of configured cells is changed from a corresponding secondary cell to a corresponding primary cell. According to the various aspects described: the L1 / L2 mobility configured cell set 401 is a RRC configured cell set for L1 / L2 mobility; the activated cell set 403 is a L1 / L2 mobility activated cell set, which includes a group of cells in the configured set that are activated and can be easily used for data and control transmission; and the deactivated cell set 405 is a L1 / L2 mobility deactivated cell set, which includes a group of cells in the configured set that are activated and can be easily activated through L1 / L2 signaling. Therefore, L1 / L2 signaling is used to activate / deactivate cells in the set and select beams within the activated cells, for example, when UE 104 moves, based on signal quality (e.g., measurement reports) and / or cell load, cells from the set are deactivated and activated through L1 / L2 signaling.

[0100] In other words, in various aspects of the present invention, all cells in the L1 / L2 configured cell set have valid primary and secondary cell configurations, and L1 / L2 signaling is used to set or select the primary cell from pre-configured options within the activated cell set. For example, using L1 / L2 signaling to switch from a secondary cell to a primary cell (and from a primary cell to a secondary cell) is faster and more efficient than the current solution in which only L3 signaling can be used to change the primary cell. In addition, in these aspects, RRC signaling (L3) updates the cell set for L1 / L2 mobility. Therefore, various aspects of the present invention relate to signaling a separate cell configuration so that each secondary cell can have a primary cell configuration, including example information elements for such configuration. In addition, various aspects of the present invention relate to signaling changes to cells in a configured L1 / L2 mobility cell set, including example signaling for removing cells from a configured L1 / L2 mobility cell set.

[0101] Therefore, various aspects of the present invention specify mechanisms and processes for L1 / L2-based inter-cell mobility for mobility delay reduction, which may include: configuration and maintenance for multiple candidate cells to allow rapid application of configurations for candidate cells; and / or dynamic switching mechanisms between candidate service cells (including special cells (SpCells) and secondary cells (SCells)) for potentially applicable switching scenarios based on L1 / L2 signaling.

[0102] Additional details of these techniques are provided in this article FIG. 5A to FIG. 15 describe.

[0103] Now go to Figure 5A , diagram 500a includes an example of a set of cells configured for carrier aggregation (CA), which will be discussed in the context of L1 / L2 mobility, carrier aggregation configuration, and individual cell signaling. Figure 5A In the network entity (eg, BS102) (not in Figure 5A 520, 522, 524, 526, 528, 530, and 532. Each of cells 520, 522, 524, 526, 528, 530, and 532 may operate on a different frequency. In some implementations, one or more cells in the CA configured cell set 502 may be a multi-TRP cell. For example, in Figure 5A, cells 524 and 526 may be multi-TRP cells, wherein cell 3 may be one TRP of multi-TRP cell 524 operating at a frequency different from another TRP of multi-TRP cell 524 operating at a different frequency, and cell 4 may be one TRP of multi-TRP cell 526 operating at a frequency different from another TRP of multi-TRP cell 526 operating at a different frequency. Only one frequency may be activated at a time for a multi-TRP cell, and the multi-TRP cell may operate using the TRP corresponding to that frequency.

[0104] Within the CA configured cell set 502, a network entity (eg, BS 102) may configure a first group of cells as part of the CA activated cell set 504. For example, Figure 5A As shown, the network entity (e.g., BS 102) may configure cells 520, 522, 524, and 526 as part of the CA activated cell set 504. The network entity (e.g., BS 102) may configure the second group of cells as part of the L1 / L2 mobility configured cell set 506. For example, Figure 5A As shown, a network entity (e.g., BS 102) may configure cells 524, 526, 528, and 530 as part of L1 / L2 mobility configured cell set 506. A network entity (e.g., BS 102) may configure one or more cells as activated cells and part of L1 / L2 mobility activated cell set 508. For example, Figure 5A As shown, a network entity (eg, BS 102 ) may configure cells 524 and 526 as activated cells and may include cells 524 and 526 as part of a set of cells 508 activated for L1 / L2 mobility.

[0105] A network entity (e.g., BS 102) may send one or more configurations for a CA-configured cell set 502 to a UE 104. The configuration for the CA-configured cell set 502 may indicate all cells configured as part of the CA-configured cell set 502. For example, the configuration may indicate to the UE that cells 520, 522, 524, 526, 528, 530, and 532 are part of the CA-configured cell set. In some implementations, the configuration for the CA-configured cell set 502 may indicate a special cell (SpCell) or a primary cell (pCell) for the UE from the cells configured in the CA-configured cell set 502, and / or one or more secondary cells (sCells) for the UE in CA from the cells configured in the CA-configured cell set 502. For example, if cell 524 is configured as a SpCell or pCell for the UE, the configuration for the CA-configured cell set 502 may indicate that cell 524 is a SpCell or a pCell. Similarly, the configuration of the set of cells 502 configured for CA may indicate that cells 520, 522, 526, 528, 530, and 532 are sCells for the UE. The network entity (e.g., BS 102) may send the configuration of the set of cells 502 configured for CA via a layer 3 (L3) message (e.g., an RRC message, an RRC configuration, etc.).

[0106] In some implementations, the network entity (e.g., BS 102) can indicate the cells configured as part of the CA activated cell set 504 to the UE 104. In some implementations, the network entity (e.g., BS 102) can indicate the cells in the CA activated cell set 504 in the CA configured cell set 502 configuration. In some implementations, the network entity (e.g., BS 102) can indicate the cells in the CA activated cell set 504 via one or more L3 messages.

[0107] According to various aspects of the present invention, a network entity (e.g., BS 102) may indicate to a UE 104 cells configured as part of a L1 / L2 mobility configured cell set 506 and / or cells configured as part of a L1 / L2 mobility activated cell set 508. In some implementations, the network entity (e.g., BS 102) may indicate the cells in the L1 / L2 mobility configured cell set 506 and / or the L1 / L2 mobility activated cell set 508 by one or more configurations sent to the UE via a layer 3 message (e.g., via an RRC message, an RRC configuration, etc.). In some implementations, the network entity (e.g., BS 102) may indicate the L1 / L2 mobility configured cell set 506 and / or the L1 / L2 mobility activated cell set 508 in a configuration of a CA configured cell set 502. In this case, the network entity (e.g., BS 102) utilizes a carrier aggregation configuration with an additional information element to facilitate L1 / L2 mobility within the CA configured cell set 502. The L1 / L2 mobility configured cell set 506 may be a subset of the CA configured cell set 502, or may cover the entirety of the CA configured cell set.

[0108] For each cell in the cell set 506 of the L1 / L2 mobility configuration, the network entity (e.g., BS102) may determine one or more special cells (SpCell) or primary cell (pCell) configurations and / or one or more secondary cell (sCell) configurations. The network entity (e.g., BS102) may indicate one or more SpCell or primary cell configurations, or one or more sCell configurations to each cell separately in the L1 / L2 mobility configuration (L1L2MobilityConfig). In some specific implementations, the network entity (e.g., BS102) may include the L1 / L2 mobility configuration in the cell set 502 configuration of the CA configuration for the cell. In some specific implementations, the network entity (e.g., BS102) may indicate or send the L1 / L2 mobility configuration in a separate configuration via an L3 message (e.g., via an RRC message, an RRC configuration, etc.).

[0109] In some implementations, for each cell in the set of cells 506 of L1 / L2 mobility configurations, the L1 / L2 mobility configuration may include one or more complementary or alternative configurations to its existing cell type configuration (e.g., SpCell / pCell configuration for sCell, or sCell configuration for pCell / SpCell). For example, if cell 524 is configured as a pCell for a UE, the network entity (e.g., BS 102) may indicate one or more sCell configurations for cell 524 in the L1 / L2 mobility configuration to allow, for example, a fast switching configuration when a currently configured secondary cell (e.g., cell 526) is switched to a primary cell. Similarly, if cell 526 is configured as an sCell for a UE, the network entity (e.g., BS 102) may indicate one or more SpCell or pCell configurations for cell 526 in the L1 / L2 mobility configuration to allow, for example, a fast switching configuration when cell 526 is switched to a primary cell. As described herein, the L1 / L2 signaling for switching the configuration of the cell being used by the UE 104 may be referred to as activating an update configuration. It should be noted that the L1 / L2 mobility configuration may provide a plurality of different primary cell configurations and / or secondary cell configurations for each cell, wherein the actual configuration to be activated is specified in the L1 / L2 signaling. In addition, the L1 / L2 mobility configuration may include an L1 measurement configuration for each cell in a deactivated cell state.

[0110] refer to Figure 5B In one example, the carrier aggregation configuration 500b includes L1 / L2 mobility configuration (L1L2MobilityConfig) 501 as one or more information elements. In this example, the carrier aggregation configuration 500b includes a cell group configuration (CellGroupConfig) 503 and associated information elements, a secondary cell configuration (SCellConfig) 505 and associated information elements, and a primary or serving cell configuration (ServingCellConfig) 507 and associated information elements.

[0111] In addition, in this example, the network entity (e.g., BS 102) may indicate or include one or more L1 / L2 mobility configurations 501 in the serving cell configuration 507 for each cell in the set of cells 506 of L1 / L2 mobility configurations. For example, for each of the cells 524, 528, 530, 532, the network entity (e.g., BS 102) may indicate or include one or more L1 / L2 mobility configurations 501 in the corresponding serving cell configuration 507.

[0112] By including L1 / L2 mobility configuration 501 in carrier aggregation configuration 500b, aspects of the present invention provide L1 / L2 mobility configuration while carrier aggregation is configured and when carrier aggregation is configured. In one aspect, L1L2MobilityConfig includes at least a PCell configuration for SCell and an SCell configuration for PCell. In one aspect, L1L2MobilityConfig also includes one or more L1 measurement configurations for measuring cells in a deactivated state, which are reported in a measurement report and used for UE mobility (e.g., in the case where the UE moves to a position where the deactivated cell should be activated). In one aspect, L1L2MobilityConfig includes information elements such as spCellConfig and SCellConfig. In addition, in some cases, more than one PCell / SCellconfig may be provided for a cell (e.g., a list of configurations of each type may be provided), and the actual configuration to be activated is specified by L1 / L2 signaling. For example, if a cell is updated from Pcell to Scell ​​via an L1 / L2 mobility procedure, L1 / L2 signaling may indicate the Scell ​​configuration to be applied. For another example, if the cell is updated from Scell ​​to PCell through L1 / L2 mobility procedure, L1 / L2 signaling may indicate the PCell configuration to be applied.

[0113] refer to Figure 5C and Figure 5D In some aspects, a network entity (eg, BS 102) may indicate a differential information element or parameter 500c ( Figure 5C ), or complete or all serving cells are configured 500d( Figure 5D ).

[0114] exist Figure 5CIn the embodiment of the present invention, the network entity (e.g., BS 102) may indicate differential or additional information elements or parameters 500c associated with SpCell or pCell to be added to an existing secondary cell configuration to form a primary cell configuration or to be removed or ignored in the primary cell configuration to form a secondary cell configuration. Examples of differential or additional information elements or parameters associated with updating a secondary cell configuration to a SpCell or pCell configuration may include, but are not limited to, reconfigurationWithSync, rlk-TimesAndConstans, rlmlnSyncOutSyncThreshold, etc. Similarly, the network entity (e.g., BS 102) may indicate differential information elements or parameters associated with sCell that are not used by PCell, such as, but not limited to, sCellDeactivationTimer (optional field for sCell in the absence of PUCCH, and otherwise not present when L1L2MobilityConfig is not enabled), pathlossReferenceLinking (optional for sCell, and otherwise not present when L1L2MobilityConfig is not enabled), servingcellMO (mandatory for SpCell or sCell+L1L2MobilityConfig enabled (in case the UE has measConfig), optional for sCell+L1L2MobilityConfig not enabled), etc. In an example, when an sCell is updated to a pCell, there are some sCell-specific information elements (IEs) (in ServingCellConfig) that are no longer applicable, and the network entity may indicate (implicitly or explicitly) to disable them or remove them from the configuration in order to form a primary cell configuration.

[0115] exist Figure 5D In some embodiments, a network entity (e.g., BS 102) may indicate multiple serving cells and / or secondary cell configurations 500d in an L1 / L2 mobility configuration 501 for each cell in a set of cells 506 configured for L1 / L2 mobility, such as but not limited to both (a) one or more SpCell or pCell configurations and (b) one or more sCell configurations 500d.

[0116] Additionally, the network entity (e.g., BS 102) may indicate or include configurations for one or more measurements to be performed by the UE for cells in the cell set 506 configured for L1 / L2 mobility. The one or more measurements may be L1 measurements, such as channel station information reference signal (CSI-RS), synchronization signal reference signal received power (SS-RSRP), etc. For each cell in the cell set 506 configured for L1 / L2, the network entity (e.g., BS 102) may indicate or include one or more L1 measurement configurations in the corresponding L1 / L2 mobility configuration. By indicating or including L1 measurements for each cell in the cell set 506 configured for L1 / L2 mobility, the network entity (e.g., BS 102) may cause the UE to perform L1 measurements for deactivated cells and activated cells in the cell set 506 configured for L1 / L2 mobility.

[0117] Based on the received L1 / L2 mobility configuration, the UE 104 may perform L1 measurements for each cell in the L1 / L2 mobility configured cell set 506. For example, the UE may measure reference signals such as CSI-RS, synchronization signals (SS), DMRS, etc. The UE may generate and / or send a measurement report for each activated cell in the L1 / L2 mobility configured cell set 506 based on the measured signals.

[0118] Based on the received measurement report, the network entity (e.g., BS 102) may determine whether to update the current pCell. For example, if the measurement report indicates that one or more signals measured from the current sCell of the UE are greater than the signals measured from the current SpCell or pCell of the UE, the network entity (e.g., BS 102) may update the pCell of the UE to the current sCell and update the current SpCell or pCell to the sCell. The network entity (e.g., BS 102) may generate an activation update configuration indicating a change from the current pCell to the sCell and / or the current sCell to the pCell. In some implementations, the activation update configuration may indicate an identifier (e.g., a cell ID) of a new cell configured as a pCell. The network entity (e.g., BS 102) may signal the activation update configuration via an L1 / L2 signal or message. For example, the network entity (e.g., BS 102) may indicate the cell configured as the new pCell in a DCI or MAC-CE.

[0119] UE 104 may switch the configuration applied to the cell changed from SpCell or pCell to sCell and the configuration applied to the cell changed from sCell to SpCell or pCell based on the received activation update configuration. For example, if cell 524 is a previous SpCell or pCell and the received activation update configuration indicates that cell 526 is a new SpCell or pCell, then for cell 524, the UE may apply the sCell configuration indicated in the L1 / L2 mobility configuration of cell 524, and for cell 526, the UE may apply the SpCell or pCell configuration indicated in the L1 / L2 mobility configuration of cell 526. Thus, with the configuration indicated in the L1 / L2 mobility configuration of the cell, the UE is able to apply or use the SpCell or pCell configuration of the new pCell and the sCell configuration of the previous pCell and / or the new sCell without any RRC reconfiguration or other L3 messages / reconfiguration. Therefore, the UE can reduce the time spent establishing a connection with a new SpCell or pCell.

[0120] refer to FIG. 5E to FIG. 5I In another aspect, the present disclosure includes signaling to remove cells from the L1 / L2 configured cell set 506. Specifically, the network entity (e.g., BS 102) may be configured to remove one or more cells from the L1 / L2 configured cell set 506 if such cells are no longer suitable for L1 / L2 mobility. The network entity (e.g., BS 102) may remove one or more cells based on various factors, such as, but not limited to, the UE moves too far from the cell (e.g., the channel condition or received signal strength of the cell is below a threshold), or another cell with better channel condition or received signal strength is found if the list of L1 / L2 configured cells is limited, the distance between the UE and the cell meets a threshold distance, the list of the number of deactivated cells configured by L1 / L2 meets a threshold number of deactivated cells, etc. In addition, unused cells may be stored in a deactivated cell set that forms part of the configured L1 / L2 mobility cell set, however, the UE may still need to perform measurements on the deactivated cell set, resulting in unnecessary power consumption. Removing cells from the L1 / L2 configured cell set 506 may reduce power consumption of the UE because the UE does not have to measure signals from the cells removed from the L1 / L2 configured cell set 506 .

[0121] refer to Figure 5EIn some implementations, a network entity (e.g., BS 102) may include in the L1 / L2 mobility configuration 501 of a cell an information element or parameter indicating whether the cell has been removed from the set of cells 506 of L1 / L2 mobility configuration. In other words, the enabled / disabled L1L2MobilityConfig may be indicated in the servingCellConfig of each cell. For example, Figure 5E In the embodiment, the L1 / L2 mobility configuration 501 may include an L1L2 mobility information element or parameter 544. If the L1L2 mobility information element or parameter 544 is enabled, the cell is configured as part of the L1 / L2 mobility cell set 506, and if the L1L2 mobility information element or parameter 544 is not enabled or is disabled, the cell is not configured or is removed from the L1 / L2 mobility cell set 506.

[0122] The network entity may signal any of the removed cells via L1 / L2 signaling (e.g., via DCI, MAC-CE, etc.) In some implementations, the UE may update the information element or parameter 544 to be disabled in the L1 / L2 mobility configuration 501 of the removed cell.

[0123] refer to Fig. 5F and Figure 5G In some implementations, the network entity (e.g., BS 102) may reuse the existing sCell index 546 to remove the cell from the set of cells configured for L1 / L2 mobility. In such implementations, the network entity (e.g., BS 102) may indicate or include the information element or parameter in the serving cell configuration or the cell group configuration of the cell. For example, in Fig. 5F , the cell group configuration 500f includes an information element or parameter sCellL1L2MobilityToReleaseList 545 indicating one or more sCells configured with L1L2MobilityConfig to be removed from the set of cells 506 of L1 / L2 mobility configuration, such as via an information element or parameter sCellIndex 546. In this example, the information element or parameter maxNrofSCellsL1L2Mobility is the maximum number of sCells configured with L1L2MobilityConfig.

[0124] In some implementations, a network entity (e.g., BS 102) can indicate the removed cells in the sCell index field 546, where each position in the sCell index field corresponds to an sCell in a CA-configured cell set (e.g., CA-configured cell set 502).

[0125] exist Figure 5GIn the example of such an index field is an sCell index 546, which includes an example position number 10 for an example number of sCells of a cell set configured for CA. In this example, of the 10 sCells, sCells 1, 2, 4, 7, and 9 may be sCells configured as part of a cell set configured for L1 / L2 mobility. A network entity (e.g., BS 102) may determine to remove cells 1 and 4 from the cell set configured for L1 / L2 mobility, and may indicate the removal of these cells via L1 / L2 signaling. For example, a network entity (e.g., BS 102) may indicate via L1 / L2 signaling (e.g., via DCI, MAC-CE, etc.) an sCellL1L2MobilityToReleaseList 545, which includes an sCell index 546 having a bit value in an index position corresponding to a cell determined to be removed from the cell set configured for L1 / L2 mobility, e.g., where a value of "1" indicates that the cell is removed. Based on receiving the information element or parameter sCellL1L2MobilityToReleaseList 545, the UE 104 may remove the indicated sCell according to the value in the field of sCell Index 546.

[0126] refer to Figure 5H and Fig.5I In some implementations, a network entity (e.g., base station 102) can generate a new index of the sCell to be removed from the L1 / L2 configured cell set, where an example of such a new index is an information element or parameter sCellL1L2MobilityIndex 547. For example, if 5 sCells are configured as part of the L1 / L2 configured cell set, then sCellL1L2MobilityIndex 547 can have 5 positions or a size of 5. Fig.5I As shown, the network entity (e.g., base station 102) may indicate the cell to be removed in an index field corresponding to the size of sCellL1L2MobilityIndex via L1 / L2 signaling (e.g., DCI, MAC-CE, etc.), and in this example, for example, based on the value "1" in the corresponding index field, cells 1 and 4 are indicated as sCells to be removed. Based on receiving the information element or parameter sCellL1L2MobilityToReleaseList 545, UE 104 may remove the indicated sCell according to the value in the field of sCellL1L2MobilityIndex547.

[0127] refer to Figure 6 and Figure 7In operation, UE 104 may, for example, communicate with processor 605 and / or memory 360 ( Figure 3 ) performs the method 700 of wireless communication by executing the L1 / L2 configuration component 198. In this case, the processor 605 may be the above Figure 3 The receive (rx) processor 356, controller / processor 359 and / or transmit (tx) processor 368 described in FIG.

[0128] At block 702, the method 700 includes receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set. For example, in one aspect, the UE 104, the processor 605, the memory 360, the L1 / L2 configuration component 198, and / or the receiving component 620 may be configured to or may include a component for receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in the configured cell set, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set.

[0129] For example, the receiving at block 702 may include: Figure 3 The antenna or antenna array (eg, antenna 352) receives the L1 / L2 mobility configuration via a wireless signal, and processes the received wireless signal and the L1 / L2 mobility configuration as described above.

[0130] At block 704, method 700 includes measuring a signal from each cell in the configured set of cells according to the measurement configuration. For example, in an aspect, UE 104, processor 605, memory 360, L1 / L2 configuration component 198, and / or measurement component 625 may be configured to or may include means for measuring a signal from each cell in the configured set of cells according to the measurement configuration.

[0131] For example, the measurements at block 704 may include measuring Figure 3 The antenna or antenna array (e.g., antenna 352) receives one or more of these signals via one or more wireless signals and performs channel quality or signal quality measurements to obtain information about the Figure 3 and / or measurement information of received wireless signals as described elsewhere above.

[0132] At block 706, the method 700 includes sending a measurement report including measurement information based on signals measured from each activated cell of the configured set of cells. For example, in an aspect, the UE 104, the processor 605, the memory 360, the L1 / L2 configuration component 198, and / or the sending component 630 may be configured to or may include means for sending a measurement report including measurement information based on signals measured from each activated cell of the configured set of cells.

[0133] For example, the sending at block 706 may include sending Figure 3 The antenna or antenna array (eg, antenna 352) sends the measurement report via a wireless signal.

[0134] refer to Figure 8 In an alternative or additional aspect, at block 802, the method 700 may further include receiving an activation update configuration via an L1 / L2 message and based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell. For example, in one aspect, the UE 104, the processor 605, the memory 360, the L1 / L2 configuration component 198, and / or the receiving component 620 may be configured to or may include a means for receiving an activation update configuration via an L1 / L2 message and based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell.

[0135] For example, the receiving at block 802 may include: Figure 3 The antenna or antenna array (e.g., antenna 352) receives an activation update configuration via a wireless signal, and Figure 3 The wireless signal is processed.

[0136] In this optional aspect, at block 804, the method 700 may also include switching use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration, including switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell. For example, in one aspect, the UE 104, the processor 605, the memory 360, the L1 / L2 configuration component 198, and / or the switching component 640 may be configured to or may include means for switching use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration, including switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0137] For example, the switching at block 804 may be performed for the reasons described above.

[0138] In alternative or additional aspects, the first cell and the second cell are part of an L1 / L2 mobility activated cell set within an L1 / L2 mobility configured cell set.

[0139] In an alternative or additional aspect, the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

[0140] refer to Fig. 9 , in an alternative or additional aspect in which the configured cell set includes a cell set for L1 / L2 mobility configuration, at box 902, the measurement of signals from each cell in the configured cell set at box 704 includes measuring signals from deactivated cells within the cell set for L1 / L2 mobility configuration.

[0141] For example, in Figure 3 The antenna or antenna array (e.g., antenna 352) receives one or more of these signals via one or more wireless signals, and Figure 3 The processing of the wireless signal may be performed for the reasons described above.

[0142] In alternative or additional aspects, the L1 / L2 mobility configuration identifies both one or more primary cell configurations and one or more secondary cell configurations for each cell in the set of configured cells.

[0143] In an alternative or additional aspect, one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein an L1 / L2 mobility configuration identifier is used to add to the one or more secondary cell configurations to form differential configuration parameters for the special cell configuration for each secondary cell in the configured cell set.

[0144] In an alternative or additional aspect, the L1 / L2 mobility configuration identifier is used to disable from one or more primary cell configurations to form one or more secondary cell configurations for each primary cell in the configured cell set, or to disable from one or more secondary cell configurations to form differential configuration parameters for one or more primary cell configurations for each secondary cell in the configured cell set.

[0145] refer to Fig.10 In an alternative or additional aspect, at block 1002, receiving the L1 / L2 mobility configuration at block 702 includes receiving the L1 / L2 mobility configuration within a serving cell configuration.

[0146] For example, the receiving at block 1002 may include: Figure 3 The L1 / L2 mobility configuration is received at the antenna or antenna array (eg, antenna 352) via one or more wireless signals and the wireless signals are processed as described above.

[0147] In an alternative or additional aspect, wherein the configured cell set comprises a cell set configured for carrier aggregation, receiving the L1 / L2 mobility configuration comprises receiving the L1 / L2 mobility configuration within a cell group configuration, the cell group configuration identifying a plurality of cells as a cell set configured for carrier aggregation, identifying a first subset of the plurality of cells as a cell set activated for carrier aggregation, identifying a second subset of the plurality of cells as a cell set configured for L1 / L2 mobility, and identifying a third subset of the plurality of cells as a cell set activated for L1 / L2 mobility.

[0148] refer to Fig.11In an alternative or additional aspect in which the configured cell set includes a L1 / L2 mobility configured cell set, at block 1102, the method 700 may further include receiving an L1 / L2 mobility configured cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set. For example, in an aspect, the UE 104, the processor 605, the memory 360, the L1 / L2 configuration component 198, and / or the receiving component 620 may be configured to or may include means for receiving the L1 / L2 mobility configured cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

[0149] For example, the receiving at block 1102 may include: Figure 3 The L1 / L2 mobility configuration cell change message is received at the antenna or antenna array (eg, antenna 352) via one or more wireless signals, and the wireless signals are processed as described above.

[0150] Moreover, for example, the receiving at block 1102 may be performed for the reasons described above.

[0151] In an alternative or additional aspect, the L1 / L2 mobility configuration cell change message includes an indicator in a serving cell configuration of at least one cell in a cell set of a carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

[0152] In an alternative or additional aspect, the L1 / L2 mobility configuration cell change message includes an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a cell set of a carrier aggregation configuration including a configured cell set. In this aspect, the L1 / L2 mobility information element includes a set of index fields corresponding to all configured secondary cells in the cell set of the carrier aggregation configuration. In this aspect, the L1 / L2 mobility information element includes a set of index fields corresponding to each secondary cell in the secondary cell set of the carrier aggregation configuration having the L1 / L2 mobility configuration.

[0153] refer to Fig.12 and Fig.13 In operation, the network entity 102 may communicate with the network entity 102 by, for example, via the processor 1206 and / or the memory 376 ( Figure 3) performs the method 1300 of wireless communication by executing the L1 / L2 configuration component 199. In this case, the processor 1206 may be the above Figure 3 The receive (rx) processor 370, controller / processor 375 and / or transmit (tx) processor 316 described in FIG.

[0154] At block 1302, the method 1300 includes sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured set of cells, a secondary cell configuration for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells. For example, in one aspect, the network entity 102, the processor 1206, the memory 376, the L1 / L2 configuration component 199, and / or the sending component 1220 may be configured to or may include means for sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured set of cells, a secondary cell configuration for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells.

[0155] For example, the transmitting at block 1302 may include transmitting the L1 / L2 mobility configuration via one or more wireless signals transmitted using an antenna or antenna array (eg, antenna 320).

[0156] At block 1304, the method 1300 includes receiving a measurement report including measurement information based on signals measured by the UE from each activated cell in the configured set of cells according to the measurement configuration. For example, in an aspect, the network entity 102, the processor 1206, the memory 376, the L1 / L2 configuration component 199, and / or the receiving component 1225 may be configured to or may include means for receiving a measurement report including measurement information based on signals measured by the UE from each activated cell in the configured set of cells according to the measurement configuration.

[0157] For example, the receiving at block 1304 may include: Figure 3 The antenna or antenna array (eg, antenna 320) receives the measurement report via one or more wireless signals, and Figure 3 The wireless signal is processed.

[0158] At block 1306, method 1300 includes generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell. For example, in one aspect, network entity 102, processor 1206, memory 376, L1 / L2 configuration component 199, and / or generation component 1230 may be configured to or may include a component for generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell.

[0159] For example, the generating at block 1306 may be performed for the reasons described above.

[0160] At block 1308, the method 1300 includes sending an activation update configuration via an L1 / L2 message. For example, in an aspect, the network entity 102, the processor 1206, the memory 376, the L1 / L2 configuration component 199, and / or the sending component 1220 may be configured to or may include means for sending an activation update configuration via an L1 / L2 message.

[0161] For example, the transmitting at block 1308 may include transmitting the activation update configuration via one or more wireless signals transmitted using an antenna or antenna array (eg, antenna 320).

[0162] refer to Fig.14 In an alternative or additional aspect, at block 1202, the method 1300 may further include switching use of configuration information for communicating with the UE based on the activation update configuration, including switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell. For example, in one aspect, the network entity 102, the processor 1206, the memory 376, the L1 / L2 configuration component 199, and / or the switching component 1235 may be configured to or may include means for switching use of configuration information for communicating with the UE based on the activation update configuration, including switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0163] For example, the switching at block 1202 may be performed for reasons as described above.

[0164] In alternative or additional aspects, the first cell and the second cell are part of an L1 / L2 mobility activated cell set within an L1 / L2 mobility configured cell set.

[0165] In an alternative or additional aspect, the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

[0166] In an alternative or additional aspect, the configured cell set comprises a L1 / L2 mobility configured cell set, and wherein the measurement information comprises information of signals measured by the UE from deactivated cells within the L1 / L2 mobility configured cell set.

[0167] In alternative or additional aspects, the L1 / L2 mobility configuration identifies both one or more primary cell configurations and one or more secondary cell configurations for each cell in the set of configured cells.

[0168] In an alternative or additional aspect, one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein an L1 / L2 mobility configuration identifier is used to add to the one or more secondary cell configurations to form differential configuration parameters for the special cell configuration for each secondary cell in the configured cell set.

[0169] In an alternative or additional aspect, the L1 / L2 mobility configuration identifier is used to disable from one or more primary cell configurations to form one or more secondary cell configurations for each primary cell in the configured cell set, or to disable from one or more secondary cell configurations to form differential configuration parameters for one or more primary cell configurations for each secondary cell in the configured cell set.

[0170] In an alternative or additional aspect, sending the L1 / L2 mobility configuration includes sending the L1 / L2 mobility configuration within a serving cell configuration.

[0171] In an alternative or additional aspect, wherein the configured cell set comprises a cell set configured for carrier aggregation, wherein sending the L1 / L2 mobility configuration comprises sending the L1 / L2 mobility configuration within a cell group configuration, the cell group configuration identifying a plurality of cells as a cell set configured for carrier aggregation, identifying a first subset of the plurality of cells as a cell set activated for carrier aggregation, identifying a second subset of the plurality of cells as a cell set configured for L1 / L2 mobility, and identifying a third subset of the plurality of cells as a cell set activated for L1 / L2 mobility.

[0172] refer to Fig.15In an alternative or additional aspect in which the configured cell set includes a L1 / L2 mobility configured cell set, at block 1502, the method 1300 may further include sending an L1 / L2 mobility configured cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set. For example, in an aspect, the network entity 102, the processor 1206, the memory 376, the L1 / L2 configuration component 199, and / or the sending component 1120 may be configured to or may include means for sending an L1 / L2 mobility configured cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

[0173] For example, the transmitting at block 1502 may include transmitting the L1 / L2 mobility configuration cell change message via one or more wireless signals transmitted using an antenna or antenna array (eg, antenna 320).

[0174] In an alternative or additional aspect, the L1 / L2 mobility configuration cell change message includes an indicator in a serving cell configuration of at least one cell in a cell set of a carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

[0175] In an alternative or additional aspect, the L1 / L2 mobility configuration cell change message includes an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a cell set of a carrier aggregation configuration including a configured cell set. In this aspect, the L1 / L2 mobility information element includes a set of index fields corresponding to all configured secondary cells in the cell set of the carrier aggregation configuration. In this aspect, the L1 / L2 mobility information element includes a set of index fields corresponding to each secondary cell in the secondary cell set of the carrier aggregation configuration having the L1 / L2 mobility configuration.

[0176] The following clauses include examples, which are merely illustrative and may be combined with other embodiments or aspects of the teachings described herein but are not limited thereto.

[0177] 1. A method for wireless communication by a user equipment, the method comprising:

[0178] Receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells;

[0179] measuring a signal from each cell in the configured set of cells according to the measurement configuration; and

[0180] A measurement report including measurement information based on signals measured from each activated cell in the configured set of cells is sent.

[0181] 2. The method according to clause 1, further comprising:

[0182] receiving an activation update configuration via an L1 / L2 message and based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and

[0183] Switching the use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration includes switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0184] 3. A method according to any of the preceding clauses, wherein the first cell and the second cell are part of an L1 / L2 mobility activated cell set within an L1 / L2 mobility configured cell set.

[0185] 4. A method according to any of the preceding clauses, wherein the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

[0186] 5. A method according to any of the preceding clauses, wherein the configured cell set includes a cell set of L1 / L2 mobility configuration, and wherein measuring the signal from each cell in the configured cell set includes measuring the signal from a deactivated cell within the cell set of L1 / L2 mobility configuration.

[0187] 6. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration identifies both the one or more primary cell configurations and the one or more secondary cell configurations for each cell in the set of configured cells.

[0188] 7. A method according to any of the preceding clauses, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

[0189] 8. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration identifier is used to disable from the one or more primary cell configurations to form the one or more secondary cell configurations for each primary cell in the configured cell set or to disable from the one or more secondary cell configurations to form differential configuration parameters of the one or more primary cell configurations for each secondary cell in the configured cell set.

[0190] 9. A method according to any preceding clause, wherein receiving the L1 / L2 mobility configuration comprises receiving the L1 / L2 mobility configuration within a serving cell configuration.

[0191] 10. A method according to any one of the preceding clauses, wherein the configured cell set includes a cell set configured for carrier aggregation, wherein receiving the L1 / L2 mobility configuration includes receiving the L1 / L2 mobility configuration within a cell group configuration, the cell group configuration identifying a plurality of cells as a cell set configured for carrier aggregation, identifying a first subset of the plurality of cells as a cell set activated for carrier aggregation, identifying a second subset of the plurality of cells as a cell set configured for L1 / L2 mobility, and identifying a third subset of the plurality of cells as a cell set activated for L1 / L2 mobility.

[0192] 11. A method according to any of the preceding clauses, wherein the configured set of cells comprises a set of cells of an L1 / L2 mobility configuration, and the method further comprises:

[0193] An L1 / L2 mobility configuration cell change message is received, the L1 / L2 mobility configuration cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

[0194] 12. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message includes an indicator in the serving cell configuration of at least one cell in the cell set of the carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

[0195] 13. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message includes an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

[0196] 14. A method according to any preceding clause, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to all configured secondary cells in the set of cells of the carrier aggregation configuration.

[0197] 15. A method according to any of the preceding clauses, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to each of the secondary cells in the set of cells of the carrier aggregation configuration having the L1 / L2 mobility configuration.

[0198] 16. A method according to any of the preceding clauses, further comprising:

[0199] Switching the use of configuration information for communicating with the UE based on the activation update configuration includes switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0200] 17. A method according to any preceding clause, wherein the first cell and the second cell are part of an L1 / L2 mobility activated cell set within an L1 / L2 mobility configured cell set.

[0201] 18. A method according to any of the preceding clauses, wherein the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

[0202] 19. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration identifier is used to disable from the one or more primary cell configurations to form the one or more secondary cell configurations for each primary cell in the configured cell set or to disable from the one or more secondary cell configurations to form differential configuration parameters of the one or more primary cell configurations for each secondary cell in the configured cell set.

[0203] 20. A method as described in any preceding clause, wherein sending the L1 / L2 mobility configuration comprises sending the L1 / L2 mobility configuration within a serving cell configuration.

[0204] 21. An apparatus for wireless communication by a user equipment, the apparatus comprising:

[0205] Memory; and

[0206] a processor coupled to the memory and configured to:

[0207] Receive layer 1 / layer 2 for each cell in the configured cell set

[0208] (L1 / L2) mobility configuration, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured cell set, one or more secondary cell configurations for each primary cell in the configured cell set, and a measurement configuration for each cell in the configured cell set;

[0209] measuring a signal from each cell in the configured set of cells according to the measurement configuration; and

[0210] A measurement report including measurement information based on signals measured from each activated cell in the configured set of cells is sent.

[0211] 22. The apparatus of clause 21, wherein the processor is further configured to:

[0212] receiving an activation update configuration via an L1 / L2 message and based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and

[0213] Switching the use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration includes switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0214] 23. An apparatus according to any preceding clause, wherein the first cell and the second cell are part of an L1 / L2 mobility activated cell set within an L1 / L2 mobility configured cell set.

[0215] 24. An apparatus according to any of the preceding clauses, wherein the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

[0216] 25. An apparatus according to any of the preceding clauses, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and wherein measuring a signal from each cell in the configured cell set comprises measuring a signal from a deactivated cell within the cell set of L1 / L2 mobility configuration.

[0217] 26. An apparatus as described in any of the preceding clauses, wherein the L1 / L2 mobility configuration identifies both the one or more primary cell configurations and the one or more secondary cell configurations for each cell in the set of configured cells.

[0218] 27. An apparatus according to any of the preceding clauses, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

[0219] 28. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility configuration identifier is used to disable from the one or more primary cell configurations to form the one or more secondary cell configurations for each primary cell in the configured cell set or to disable from the one or more secondary cell configurations to form differential configuration parameters of the one or more primary cell configurations for each secondary cell in the configured cell set.

[0220] 29. An apparatus as described in any of the preceding clauses, wherein receiving the L1 / L2 mobility configuration comprises receiving the L1 / L2 mobility configuration within a serving cell configuration.

[0221] 30. An apparatus according to any of the preceding clauses, wherein the configured cell set includes a cell set configured for carrier aggregation, wherein receiving the L1 / L2 mobility configuration includes receiving the L1 / L2 mobility configuration within a cell group configuration, the cell group configuration identifying a plurality of cells as the cell set configured for carrier aggregation, identifying a first subset of the plurality of cells as a cell set activated for carrier aggregation, identifying a second subset of the plurality of cells as a cell set configured for L1 / L2 mobility, and identifying a third subset of the plurality of cells as a cell set activated for L1 / L2 mobility.

[0222] 31. An apparatus according to any preceding clause, wherein the set of configured cells comprises a set of cells of an L1 / L2 mobility configuration, and wherein the processor is further configured to:

[0223] An L1 / L2 mobility configuration cell change message is received, the L1 / L2 mobility configuration cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

[0224] 32. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message includes an indicator in the serving cell configuration of at least one cell in the cell set of the carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

[0225] 33. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

[0226] 34. An apparatus as described in any preceding clause, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to all configured secondary cells in the set of cells of the carrier aggregation configuration.

[0227] 35. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to each of the secondary cells in the set of cells of the carrier aggregation configuration having the L1 / L2 mobility configuration.

[0228] 36. An apparatus according to any of the preceding clauses, wherein the processor is further configured to:

[0229] Switching the use of configuration information for communicating with the UE based on the activation update configuration includes switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

[0230] 37. An apparatus as described in any of the preceding clauses, wherein the first cell and the second cell are part of an L1 / L2 mobility activated cell set within an L1 / L2 mobility configured cell set.

[0231] 38. An apparatus according to any of the preceding clauses, wherein the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

[0232] 39. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility configuration identifier is used to disable from the one or more primary cell configurations to form the one or more secondary cell configurations for each primary cell in the configured cell set or to disable from the one or more secondary cell configurations to form differential configuration parameters of the one or more primary cell configurations for each secondary cell in the configured cell set.

[0233] 40. An apparatus as described in any preceding clause, wherein sending the L1 / L2 mobility configuration comprises sending the L1 / L2 mobility configuration within a serving cell configuration.

[0234] 41. A method for wireless communication by a network entity, the method comprising:

[0235] sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells;

[0236] receiving a measurement report including measurement information based on signals measured by the UE from each activated cell in the configured set of cells according to the measurement configuration;

[0237] generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following items: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and

[0238] The activation update configuration is sent via L1 / L2 message.

[0239] 42. A method according to clause 41, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and wherein the measurement information comprises information of signals measured by the UE from deactivated cells within the cell set of L1 / L2 mobility configuration.

[0240] 43. A method as described in any preceding clause, wherein the L1 / L2 mobility configuration identifies, for each cell in the set of configured cells, both the one or more primary cell configurations and the one or more secondary cell configurations.

[0241] 44. A method according to any of the preceding clauses, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

[0242] 45. A method according to any one of the preceding clauses, wherein the configured cell set includes a cell set configured for carrier aggregation, wherein sending the L1 / L2 mobility configuration includes sending the L1 / L2 mobility configuration within a cell group configuration, the cell group configuration identifies multiple cells as the cell set configured for carrier aggregation, identifies a first subset of the multiple cells as a cell set activated for carrier aggregation, identifies a second subset of the multiple cells as a cell set configured for L1 / L2 mobility, and identifies a third subset of the multiple cells as a cell set activated for L1 / L2 mobility.

[0243] 46. ​​A method according to any preceding clause, wherein the configured set of cells comprises a set of cells of an L1 / L2 mobility configuration, and the method further comprises:

[0244] An L1 / L2 mobility configuration cell change message is sent, wherein the L1 / L2 mobility configuration cell change message indicates a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

[0245] 47. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message includes an indicator in the serving cell configuration of at least one cell in the cell set of the carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

[0246] 48. A method according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message includes an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

[0247] 49. A method according to any preceding clause, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to all configured secondary cells in the set of cells of the carrier aggregation configuration.

[0248] 50. A method according to any of the preceding clauses, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to each of the secondary cells in the set of cells of the carrier aggregation configuration having the L1 / L2 mobility configuration.

[0249] 51. An apparatus for wireless communication by a network entity, the apparatus comprising:

[0250] Memory; and

[0251] a processor coupled to the memory and configured to:

[0252] sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies a primary cell configuration for each secondary cell in the configured set of cells, a secondary cell configuration for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells;

[0253] receiving a measurement report including measurement information based on signals measured by the UE from each activated cell in the configured set of cells according to the measurement configuration;

[0254] generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following items: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and

[0255] The activation update configuration is sent via L1 / L2 message.

[0256] 52. An apparatus according to clause 51, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and wherein the measurement information comprises information of signals measured by the UE from deactivated cells within the cell set of L1 / L2 mobility configuration.

[0257] 53. An apparatus as described in any preceding clause, wherein the L1 / L2 mobility configuration identifies both the one or more primary cell configurations and the one or more secondary cell configurations for each cell in the set of configured cells.

[0258] 54. An apparatus according to any of the preceding clauses, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

[0259] 55. An apparatus according to any of the preceding clauses, wherein the configured cell set includes a cell set configured for carrier aggregation, wherein sending the L1 / L2 mobility configuration includes sending the L1 / L2 mobility configuration within a cell group configuration, the cell group configuration identifying a plurality of cells as a cell set configured for carrier aggregation, identifying a first subset of the plurality of cells as a cell set activated for carrier aggregation, identifying a second subset of the plurality of cells as a cell set configured for L1 / L2 mobility, and identifying a third subset of the plurality of cells as a cell set activated for L1 / L2 mobility.

[0260] 56. An apparatus according to any preceding clause, wherein the configured set of cells comprises a set of cells of an L1 / L2 mobility configuration, and wherein the processor is further configured to:

[0261] Sending an L1 / L2 mobility configuration cell change message, wherein the L1 / L2 mobility configuration cell change message indicates a change in the cell set included in the L1 / L2 mobility configuration,

[0262] Change of cells in the L1 / L2 mobility activated cell set or the L1 / L2 mobility deactivated cell set.

[0263] 57. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message includes an indicator in the serving cell configuration of at least one cell in the cell set of the carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

[0264] 58. An apparatus according to any of the preceding clauses, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

[0265] 59. An apparatus as described in any preceding clause, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to all configured secondary cells in the set of cells of the carrier aggregation configuration.

[0266] 60. An apparatus according to any preceding clause, wherein the L1 / L2 mobility information element comprises a set of index fields corresponding to each of the secondary cells having the L1 / L2 mobility configuration in the set of cells of the carrier aggregation configuration.

[0267] Although the foregoing disclosure discusses illustrative aspects and / or embodiments, it should be noted that various changes and modifications may be made herein without departing from the described aspects and / or embodiments as defined by the appended claims. Furthermore, although elements of the described aspects and / or embodiments are described or claimed in the singular, the plural is also contemplated unless limitation to the singular is explicitly stated. Additionally, all or part of any aspect and / or embodiment may be used with all or part of any other aspect and / or embodiment unless otherwise stated.

[0268] It should be understood that the specific order or hierarchy of the blocks in the disclosed process / flowchart is merely an illustration of the exemplary method. It should be understood that the specific order or hierarchy of the blocks in the process / flowchart can be rearranged based on design preferences. In addition, some blocks can be combined or omitted. The attached method claims provide the elements of each block in a sample order, but are not meant to be limited to the specific order or hierarchy provided.

[0269] The foregoing description is provided to enable any person skilled in the art to practice 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 can be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but to conform to the full scope consistent with the language claims, wherein the elements mentioned in the singular are not intended to represent "one and only one", unless specifically so stated, but "one or more". Terms such as "if", "when ......" and "while ......" should be interpreted as "under the conditions of ......", rather than meaning an instantaneous time relationship or reaction. That is, these phrases, such as "when ......", do not mean an instantaneous action in response to the occurrence of an action or during the occurrence of an action, but only mean that if the conditions are met, the action will occur without a specific or instantaneous time constraint to make the action occur. The word "exemplary" is used herein to mean "used as an example, instance, or illustration". Any aspect described as "exemplary" herein is not necessarily interpreted as being preferred or having an advantage over other aspects. Unless otherwise specified, the term "some" refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, and / or C, and may include multiple A, multiple B, or multiple C. Specifically, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” may be only A, only B, only C, A and B, A and C, B and C, or A and B and C, where any such combination may include one or more members of A, B, or C. All structural and functional equivalents to the elements of the various aspects described throughout the disclosure that are known or later become known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. Words such as "module," "mechanism," "element," and "device" cannot replace the word "component." Therefore, no claim element will be construed as a component plus function unless the element is explicitly stated using the phrase "component for..."

Claims

1. A method for wireless communication by a user equipment, the method comprising: Receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells; measuring a signal from each cell in the configured set of cells according to the measurement configuration; as well as A measurement report including measurement information based on signals measured from each activated cell in the configured set of cells is sent.

2. The method according to claim 1, further comprising: receiving an activation update configuration via an L1 / L2 message and based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and Switching the use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration includes switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

3. The method of claim 2, wherein the L1 / L2 message comprises a medium access control-control element (MAC-CE) or downlink control information (DCI), and wherein the L1 / L2 mobility configuration is received in a radio resource control (RRC) message.

4. The method of claim 1, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and wherein measuring a signal from each cell in the configured cell set comprises measuring a signal from a deactivated cell within the cell set of L1 / L2 mobility configuration.

5. The method according to claim 1, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

6. The method according to claim 1, wherein the L1 / L2 mobility configuration identifier is used to disable from the one or more primary cell configurations to form the one or more secondary cell configurations for each primary cell in the configured cell set or to disable from the one or more secondary cell configurations to form differential configuration parameters of the one or more primary cell configurations for each secondary cell in the configured cell set.

7. The method according to claim 1, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and the method further comprises: An L1 / L2 mobility configuration cell change message is received, the L1 / L2 mobility configuration cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

8. The method of claim 7, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in a serving cell configuration of at least one cell in a cell set of a carrier aggregation configuration that includes the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

9. The method of claim 7, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

10. The method of claim 9, wherein the L1 / L2 mobility information element comprises a first group of index fields corresponding to all configured secondary cells in the set of cells configured with the carrier aggregation, or wherein the L1 / L2 mobility information element comprises a second group of index fields corresponding to each of the secondary cells having the L1 / L2 mobility configuration in the set of cells configured with the carrier aggregation.

11. An apparatus for wireless communication by a user equipment, the apparatus comprising: Memory; and a processor coupled to the memory and configured to: Receiving a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells, wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells; measuring a signal from each cell in the configured set of cells according to the measurement configuration; as well as A measurement report including measurement information based on signals measured from each activated cell in the configured set of cells is sent.

12. The apparatus of claim 11, wherein the processor is further configured to: receiving an activation update configuration via an L1 / L2 message and based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and Switching the use of configuration information for communicating with at least one of the first cell or the second cell based on the activation update configuration includes switching from using a corresponding primary cell configuration for the first cell to using a corresponding secondary cell configuration for the first cell, or switching from using a corresponding secondary cell configuration for the second cell to using a corresponding primary cell configuration for the second cell.

13. The apparatus of claim 12, wherein the L1 / L2 message comprises a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI), and wherein the L1 / L2 mobility configuration is received in a Radio Resource Control (RRC) message.

14. The apparatus of claim 11, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and wherein measuring a signal from each cell in the configured cell set comprises measuring a signal from a deactivated cell within the cell set of L1 / L2 mobility configuration.

15. The apparatus according to claim 11, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

16. An apparatus according to claim 11, wherein the L1 / L2 mobility configuration identifier is used to disable from the one or more primary cell configurations to form the one or more secondary cell configurations for each primary cell in the configured cell set or to disable from the one or more secondary cell configurations to form differential configuration parameters of the one or more primary cell configurations for each secondary cell in the configured cell set.

17. The apparatus of claim 11, wherein the configured cell set comprises a L1 / L2 mobility configured cell set, and wherein the processor is further configured to: An L1 / L2 mobility configuration cell change message is received, the L1 / L2 mobility configuration cell change message indicating a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

18. The apparatus according to claim 17, wherein the L1 / L2 mobility configuration cell change message includes an indicator in a serving cell configuration of at least one cell in a cell set of a carrier aggregation configuration including the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration.

19. The apparatus of claim 17, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

20. The apparatus according to claim 19, wherein the L1 / L2 mobility information element includes a first group of index fields corresponding to all configured secondary cells in the cell set of the carrier aggregation configuration, or wherein the L1 / L2 mobility information element includes a second group of index fields corresponding to each of the secondary cells in the cell set of the carrier aggregation configuration having the L1 / L2 mobility configuration.

21. A method for wireless communication by a network entity, the method comprising: sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells; receiving a measurement report including measurement information based on signals measured by the UE from each activated cell in the configured set of cells according to the measurement configuration; generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and The activation update configuration is sent via L1 / L2 message.

22. The method of claim 21, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

23. The method of claim 21, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and the method further comprises: An L1 / L2 mobility configuration cell change message is sent, wherein the L1 / L2 mobility configuration cell change message indicates a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

24. The method of claim 23, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in a serving cell configuration of at least one cell in a cell set of a carrier aggregation configuration including the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration, or An indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

25. An apparatus for wireless communication by a network entity, the apparatus comprising: Memory; and a processor coupled to the memory and configured to: sending a layer 1 / layer 2 (L1 / L2) mobility configuration for each cell in a configured set of cells to a user equipment (UE), wherein the L1 / L2 mobility configuration identifies one or more primary cell configurations for each secondary cell in the configured set of cells, one or more secondary cell configurations for each primary cell in the configured set of cells, and a measurement configuration for each cell in the configured set of cells; receiving a measurement report including measurement information based on signals measured by the UE from each activated cell in the configured set of cells according to the measurement configuration; generating an activation update configuration based on the measurement report, the activation update configuration indicating at least one of the following items: a first cell in the configured cell set is changed from a corresponding primary cell to a corresponding secondary cell, or a second cell in the configured cell set is changed from a corresponding secondary cell to a corresponding primary cell; and The activation update configuration is sent via L1 / L2 message.

26. The apparatus of claim 25, wherein the configured cell set comprises a cell set of L1 / L2 mobility configuration, and wherein the measurement information comprises information of a signal measured by the UE from a deactivated cell within the cell set of L1 / L2 mobility configuration.

27. An apparatus according to claim 25, wherein the one or more primary cell configurations for each secondary cell in the configured cell set include a special cell configuration for use when the secondary cell is identified as a primary cell group or a primary cell of a secondary cell group, and wherein the L1 / L2 mobility configuration identifier is used to be added to the one or more secondary cell configurations to form differential configuration parameters of the special cell configuration for each secondary cell in the configured cell set.

28. The apparatus of claim 25, wherein the configured set of cells comprises a set of cells configured for L1 / L2 mobility, and wherein the processor is further configured to: An L1 / L2 mobility configuration cell change message is sent, wherein the L1 / L2 mobility configuration cell change message indicates a change to a cell included in the L1 / L2 mobility configured cell set, the L1 / L2 mobility activated cell set, or the L1 / L2 mobility deactivated cell set.

29. The apparatus of claim 28, wherein the L1 / L2 mobility configuration cell change message comprises an indicator in a serving cell configuration of at least one cell in a cell set of a carrier aggregation configuration including the cell set of the L1 / L2 mobility configuration, wherein the indicator enables or disables including the at least one cell in the cell set of the carrier aggregation configuration in the cell set of the L1 / L2 mobility configuration, or An indicator in an index field in an L1 / L2 mobility information element, wherein the index field corresponds to a cell in a set of cells of a carrier aggregation configuration including the configured set of cells.

30. The apparatus according to claim 29, wherein the L1 / L2 mobility information element includes a first group of index fields corresponding to all configured secondary cells in the cell set of the carrier aggregation configuration, or wherein the L1 / L2 mobility information element includes a second group of index fields corresponding to each secondary cell in the secondary cells of the cell set of the carrier aggregation configuration having the L1 / L2 mobility configuration.

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