CN117044305A - UE capability for performing serving cell based CSI-RS RRM measurements - Google Patents

Abstract

Apparatus, methods, and computer program products are provided for CSI-RS RRM based serving cell measurements. An example apparatus may transmit, to a base station, an indication to support reporting of one or more serving cell channel state information reference signal (CSI-RS) Radio Resource Management (RRM) measurements independent of the RRM measurements. The example apparatus may receive a configuration of layer 3 measurement resources from a base station. The example apparatus may perform one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources. The example apparatus may transmit one or more serving cell CSI-RS RRM measurements for a serving cell to a base station.

Description

UE capability for performing serving cell based CSI-RS RRM measurements

Cross Reference to Related Applications

The present application claims the benefits and priorities of U.S. provisional application S/n.63/129,530 entitled "UE CAPABILITY FOR PERFORMING SERVING CELL base CSI-RS RRM MEASUREMENTS (UE capability for performing serving cell BASED CSI-RS RRM measurements)" filed on 12 months 22 of 2020, U.S. provisional application S/n.63/129,497 entitled "support SERVING CELL CSI-RS RRM MEASUREMENTS FOR MDT (SUPPORTING serving cell CSI-RS RRM measurements for MDT)" filed on 12 months 22 of 2020, and U.S. patent application No.17/455,194 entitled "UE CAPABILITY FOR PERFORMING SERVING CELL base CSI-RS RRM MEASUREMENTS (UE capability for performing serving cell BASED CSI-RS RRM measurements) filed on 11 months 16 of 2011, which are expressly incorporated herein by reference in their entirety.

Technical Field

The present disclosure relates generally to communication systems, and more particularly to wireless communication systems with channel state information reference signal (CSI-RS) Radio Resource Management (RRM) measurements.

Introduction to the invention

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcast. A typical wireless communication system may employ multiple-access techniques capable of supporting communication with multiple users by sharing the available system resources. Examples of such multiple-access techniques 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.

These multiple access techniques have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the urban, national, regional, and even global levels. An example telecommunications standard is 5G New Radio (NR). The 5G NR is part of the continuous mobile broadband evolution promulgated by the third generation partnership project (3 GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the internet of things (IoT)) and other requirements. The 5G NR includes services associated with enhanced mobile broadband (emmbb), large-scale machine type communication (emtc), and ultra-reliable low latency communication (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There is a need for further improvements in 5G NR technology. These improvements are also applicable to other multiple access techniques and telecommunication standards employing these techniques.

Brief summary of the invention

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate 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 the more detailed description that is presented later.

In an aspect of the disclosure, a method, computer-readable medium, and apparatus at a User Equipment (UE) are provided. The UE may transmit an indication to the base station indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements. The UE may receive a configuration of layer 3 measurement resources from the base station. The UE may perform one or more serving cell CSI-RS RRM measurements based on the configuration of the layer 3 measurement resources. The UE may transmit one or more serving cell CSI-RS RRM measurements for the serving cell to the base station.

In another aspect of the disclosure, a method, computer-readable medium, and apparatus at a base station are provided. The base station may receive an indication from the UE indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements. The base station may transmit a configuration of layer 3 measurement resources to the UE in response to receiving the indication. The base station may receive one or more serving cell CSI-RS RRM measurements for the serving cell from the UE.

In another aspect of the disclosure, a method, computer-readable medium, and apparatus for at a UE are provided. The UE may receive a configuration of layer 3 measurement objects for a serving cell from a base station. The UE may perform one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object. The UE may transmit a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object to the base station.

In another aspect of the disclosure, a method, computer-readable medium, and apparatus at a base station are provided. The base station may transmit a configuration of layer 3 measurement objects for the serving cell to the UE. The base station may receive a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object from the UE.

To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed and the present description is intended to include all such aspects and their equivalents.

Brief Description of Drawings

Fig. 1 is a diagram illustrating an example of a wireless communication system and an access network.

Fig. 2A is a diagram illustrating an example of a first frame in accordance with aspects of the present disclosure.

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

Fig. 2C is a diagram illustrating an example of a second frame in accordance with aspects of the present disclosure.

Fig. 2D is a diagram illustrating an example of UL channels within a subframe in accordance with various aspects of the present disclosure.

Fig. 3 is a diagram illustrating an example of a base station and a User Equipment (UE) in an access network.

Fig. 4 illustrates example communications between a UE and a base station.

Fig. 5 illustrates example communications between a UE and a base station.

Fig. 6 is a flow chart of a method of wireless communication.

Fig. 7 is a flow chart of a method of wireless communication.

Fig. 8 is a flow chart of a method of wireless communication.

Fig. 9 is a flow chart of a method of wireless communication.

Fig. 10 is a diagram illustrating an example of a hardware implementation of an example device.

Fig. 11 is a diagram illustrating an example of a hardware implementation of an example device.

Detailed Description

The detailed description set forth below in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. It will be apparent, however, to one skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring such concepts.

Several aspects of the telecommunications system 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 such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

As an example, an element, or any portion of an element, or any combination of elements, may be implemented as a "processing system" that includes one or more processors. Examples of processors include: microprocessors, microcontrollers, graphics Processing Units (GPUs), central Processing Units (CPUs), application processors, digital Signal Processors (DSPs), reduced Instruction Set Computing (RISC) processors, system on a chip (SoC), baseband processors, field Programmable Gate Arrays (FPGAs), programmable Logic Devices (PLDs), state machines, gate logic, discrete hardware circuits, and other suitable hardware configured to perform the various functionalities described throughout this disclosure. One or more processors in the processing system may execute the software. Software should be construed broadly to mean instructions, instruction sets, code segments, program code, programs, subroutines, software components, applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether described in software, firmware, middleware, microcode, hardware description language, or other terminology.

Accordingly, in one or more example embodiments, the described functionality may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on or encoded on a computer-readable medium as one or more instructions or code. Computer readable media includes computer storage media. A storage media may be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can comprise Random Access Memory (RAM), read-only memory (ROM), electrically Erasable Programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of types of computer-readable media, 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.

While aspects are described in this disclosure by way of illustration of some examples, those skilled in the art will appreciate that additional implementations and use cases may be produced in many different arrangements and scenarios. The innovations described herein may be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, implementations and/or uses may be generated via integrated chip implementations and other non-module component-based devices (e.g., end user devices, vehicles, communication devices, computing devices, industrial equipment, retail/shopping devices, medical devices, artificial Intelligence (AI) enabled devices, etc.). While some examples may or may not be specific to each use case or application, the broad applicability of the described innovations may occur. Implementations may range from chip-level or module components to non-module, non-chip-level implementations, and further to aggregated, distributed or Original Equipment Manufacturer (OEM) devices or systems incorporating one or more aspects of the described innovations. In some practical environments, devices incorporating the described aspects and features may also include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals must include several components (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders/summers, etc.) for analog and digital purposes. The innovations described herein are intended to be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, and the like, of various sizes, shapes, and configurations.

In some wireless communication systems, CSI-RS signals may be used for RRM/mobility control. For example, the UE may perform measurements of layer 3CSI-RS for RRM or mobility management. The network may configure a potential set of CSI-RS resources for both the serving cell and the neighboring cell for UE monitoring and measurement. The UE may perform measurements such as signal-to-noise ratio (SINR) measurements, reference Signal Received Quality (RSRQ) measurements, reference Signal Received Power (RSRP) measurements, and the like. The measurements may help identify one or more target cells for the UE based on a comparison of serving cell measurements with measurements of one or more neighboring cells. It may be helpful for the network to receive measurements that are specific to the serving cell and independent of the non-serving cells. However, when configured to provide mobility measurements, the UE may provide measurements of serving cells and detected non-serving cells.

Aspects presented herein enable a UE to report serving cell specific CSI-RS RRM measurements, e.g., for mobility measurement reporting. For example, the UE may provide measurements for the serving cell to the network without reporting or independently of reporting measurements for the non-serving cells. Similarly, the UE may report measurements for serving beams of the serving cell, e.g., without reporting measurements for non-serving beams. Serving cell measurements may enable the UE to reduce memory usage by not collecting non-serving cell or non-serving beam metrics. Aspects may enable reduction in UE complexity by enabling the UE to perform serving cell layer 3 measurements without employing measurement gaps that may be used to perform measurements for non-serving cells. From the UE's perspective, the serving cell measurements may inform the network of the load and interference caused by neighboring cell traffic.

In some wireless communication systems, drive tests are used to measure network performance, such as uplink/downlink coverage, cell power, interference, quality of service, dropped calls for UEs, throughput, handover performance, cell reselection performance, etc. The UE may use a Minimization Drive Test (MDT) mechanism to measure and report information about such network performance. The MDT capable UE may periodically report the GPS location of the UE (if the GPS receiver is enabled and the UE supports GPS reporting on layer 3) and automatically perform CSI-RSL3 measurements for RRM/mobility management, such as signal-to-noise ratio (SINR) measurements, reference Signal Received Quality (RSRQ) measurements, reference Signal Received Power (RSRP) measurements, and so on. The UE may also record the measurements and report the measurements to the network. It may be helpful for the network to receive measurements that are specific to the serving cell and independent of the non-serving cells. However, when configured to provide MDT measurements, the UE may provide measurements for both serving and non-serving cells.

Aspects presented herein enable a UE to report serving cell specific measurements, such as Radio Resource Management (RRM) measurements for MDT and/or for mobility measurement reporting. For example, the UE may provide measurements for the serving cell to the network without reporting or independently of reporting measurements for the non-serving cells. Similarly, the UE may report measurements for serving beams of the serving cell, e.g., without reporting measurements for non-serving beams. Serving cell measurements may enable the UE to reduce memory usage by not collecting non-serving cell or non-serving beam metrics. Aspects may enable reduction in UE complexity by enabling the UE to perform serving cell layer 3 measurements without employing measurement gaps that may be used to perform measurements for non-serving cells. From the UE's perspective, the serving cell measurements may inform the network of the load and interference caused by neighboring cell traffic.

Fig. 1 is a diagram illustrating an example of a wireless communication system and an access network 100. A wireless communication system, also known as a Wireless Wide Area Network (WWAN), includes a base station 102, a UE 104, an Evolved Packet Core (EPC) 160, and another core network 190 (e.g., a 5G core (5 GC)). Base station 102 may include macro cells (high power cell base stations) and/or small cells (low power cell base stations). The macrocell includes a base station. Small cells include femtocells, picocells, and microcells.

A base station 102 configured for 4G LTE, collectively referred to as an evolved Universal Mobile Telecommunications System (UMTS) terrestrial radio access network (E-UTRAN), may interface with the EPC 160 through a first backhaul link 132 (e.g., an S1 interface). A base station 102 configured for 5G NR, collectively referred to as a next generation RAN (NG-RAN), may interface with a core network 190 over a second backhaul link 184. Among other functions, the base station 102 may perform one or more of the following functions: user data delivery, radio channel ciphering and ciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio Access Network (RAN) sharing, multimedia Broadcast Multicast Services (MBMS), subscriber and equipment tracking, RAN Information Management (RIM), paging, positioning, and delivery of alert messages. The base stations 102 may communicate with each other directly or indirectly (e.g., through the EPC 160 or the core network 190) over a third backhaul link 134 (e.g., an X2 interface). The first backhaul link 132, the second backhaul link 184, and the third backhaul link 134 may be wired or wireless.

The base station 102 may be in wireless communication with the UE 104. Each base station 102 may provide communication coverage for a respective corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, the 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 comprising both small cells and macro cells may be referred to as a heterogeneous network. The heterogeneous network may also include a home evolved node B (eNB) (HeNB) that may provide services to a restricted group known as a Closed Subscriber Group (CSG). The communication link 120 between the base station 102 and the UE 104 may include Uplink (UL) (also known as reverse link) transmissions from the UE 104 to the base station 102 and/or Downlink (DL) (also known as forward link) transmissions from the base station 102 to the UE 104. Communication link 120 may use multiple-input multiple-output (MIMO) antenna techniques including spatial multiplexing, beamforming, and/or transmit diversity. These communication links may be through one or more carriers. For each carrier allocated in carrier aggregation up to yxmhz (x component carriers) in total for transmission in each direction, the base station 102/UE 104 may use a spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400MHz, etc.) bandwidth. These carriers may or may not be contiguous with each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL than UL). The component carriers 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).

Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use the DL/UL WWAN spectrum. The D2D communication link 158 may use one or more side link channels such as a physical side link broadcast channel (PSBCH), a physical side link discovery channel (PSDCH), a physical side link shared channel (PSSCH), and a physical side link 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.

The wireless communication system may further include a Wi-Fi Access Point (AP) 150 in communication with a Wi-Fi Station (STA) 152 via a communication link 154, such as in a 5GHz unlicensed spectrum or the like. When communicating in the unlicensed spectrum, the STA 152/AP 150 may perform a Clear Channel Assessment (CCA) prior to communication to determine whether the channel is available.

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

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 designated FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). Although a portion of FR1 is greater than 6GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. Similar naming problems sometimes occur with respect to FR2, which is commonly (interchangeably) referred to as the "millimeter wave" band in various documents and articles, although it is different from the Extremely High Frequency (EHF) band (30 GHz-300 GHz) identified by the International Telecommunications Union (ITU) as the "millimeter wave" band.

The frequency between FR1 and FR2 is commonly referred to as the mid-band frequency. Recent 5G NR studies have identified the operating band of these mid-band frequencies as frequency range designation FR3 (7.125 GHz-24.25 GHz). The frequency bands falling within FR3 may inherit FR1 characteristics and/or FR2 characteristics and thus may effectively extend the characteristics of FR1 and/or FR2 into mid-band frequencies. Additionally, higher frequency bands are currently being explored to extend 5G NR operation above 52.6 GHz. For example, three higher operating bands have been identified as frequency range designation FR2-2 (52.6 GHz-71 GHz), FR4 (71 GHz-114.25 GHz) and FR5 (114.25 GHz-300 GHz). Each of these higher frequency bands falls within the EHF frequency band.

In view of the above, unless specifically stated otherwise, it should be understood that, if used herein, the term sub-6 GHz and the like may broadly represent frequencies that may be less than 6GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless specifically stated otherwise, it should be understood that, if used herein, the term "millimeter wave" or the like may broadly mean frequencies that may include mid-band frequencies, may be within FR2, FR4, FR2-2 and/or FR5, or may be within the EHF band.

Whether small cell 102' or a large cell (e.g., macro base station), base station 102 may include and/or be referred to as an eNB, g B node (gNB), or another type of base station. Some base stations (such as the 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 gNB 180 operates in millimeter wave frequencies or near millimeter wave frequencies, gNB 180 may be referred to as a millimeter wave base station. Millimeter-wave base station 180 may utilize beamforming 182 with 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.

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

EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a serving gateway 166, a Multimedia Broadcast Multicast Service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a Packet Data Network (PDN) gateway 172.MME 162 may be in communication 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. Generally, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are communicated through the serving gateway 166, which serving gateway 166 itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation as well as other functions. The PDN gateway 172 and BM-SC 170 are connected to an IP service 176.IP services 176 may include the internet, intranets, IP Multimedia Subsystem (IMS), PS streaming services, and/or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may be used as an entry point for content provider MBMS transmissions, may be used to authorize and initiate MBMS bearer services within a Public Land Mobile Network (PLMN), and may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service and may be responsible for session management (start/stop) and for collecting eMBMS related charging information.

The core network 190 may include access and mobility management functions (AMFs) 192, other AMFs 193, session Management Functions (SMFs) 194, and User Plane Functions (UPFs) 195. The AMF 192 may be in communication 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. In general, AMF 192 provides QoS flows and session management. All user Internet Protocol (IP) packets are delivered through UPF 195. The UPF 195 provides UE IP address assignment as well as other functions. The UPF 195 is connected to an IP service 197.IP services 197 may include the internet, intranets, IP Multimedia Subsystem (IMS), packet Switched (PS) streaming (PSs) services, and/or other IP services.

A base station may include and/or be referred to as a gNB, a node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a transmission-reception point (TRP), or some other suitable terminology. The base station 102 provides an access point for the UE 104 to the EPC 160 or core network 190. Examples of UEs 104 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a tablet, a smart device, a wearable device, a vehicle, an electricity meter, an air pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor/actuator, a display, or any other similar functional device. Some UEs 104 may be referred to as IoT devices (e.g., parking timers, oil pumps, ovens, vehicles, heart monitors, etc.). The UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, or some other suitable terminology. In some scenarios, the term UE may also apply to one or more companion devices, such as in a device constellation arrangement. One or more of these devices may access the network in common and/or individually.

Referring again to 1, in certain aspects, the UE104 may include a measurement component 198 configured to: an indication is transmitted to the base station 102 or 180 indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements. The measurement component 198 can be configured to receive a configuration of layer 3 measurement resources from a base station. The measurement component 198 may be configured to perform one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources. The measurement component 198 can be configured to transmit one or more serving cell CSI-RS RRM measurements for a serving cell to the base station 102 or 180.

In certain aspects, the base station 102 or 180 can include a measurement processing component 199 configured to: an indication is received from the UE104 indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements. The measurement processing component 199 may be configured to communicate a configuration of layer 3 measurement resources to the UE104 in response to receiving the indication. The measurement processing component 199 may be configured to receive one or more serving cell CSI-RS RRM measurements for a serving cell from a UE.

The UE 104 may include a measurement component 198 configured to: a configuration of layer 3 measurement objects for the serving cell is received from the base station 102 or 180. The measurement component 198 may be configured to perform one or more serving cell measurements of one or more layer 3 measurement reference signal resources for a serving cell based on the configuration of the layer 3 measurement object. The measurement component 198 can be configured to communicate a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object to a base station.

In certain aspects, the base station 102 or 180 can include a measurement processing component 199 configured to: the configuration of the layer 3 measurement object for the serving cell is transmitted to the UE 104. The measurement processing component 199 may be configured to receive from the UE 104 a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

Fig. 2A is a diagram 200 illustrating an example of a first subframe within a 5G NR frame structure. Fig. 2B is a diagram 230 illustrating an example of DL channels within a 5G NR subframe. Fig. 2C is a diagram 250 illustrating an example of a second subframe within a 5G NR frame structure. Fig. 2D is a diagram 280 illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure may be Frequency Division Duplex (FDD), where for a particular set of subcarriers (carrier system bandwidth), the subframes within that set of subcarriers are dedicated to DL or UL; or may be Time Division Duplex (TDD) in which for a particular set of subcarriers (carrier system bandwidth), the subframes within that set of subcarriers are dedicated to both DL and UL. In the example provided by fig. 2A, 2C, the 5G NR frame structure is assumed to be TDD, with subframe 4 configured with slot format 28 (mostly DL) and subframe 3 configured with slot format 1 (all UL), where D is DL, U is UL, and F is flexible for use between DL/UL. Although subframes 3, 4 are shown as having slot formats 1, 28, respectively, any particular subframe may be configured with any of the various available slot formats 0-61. The slot formats 0, 1 are full DL, full UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The UE is configured with a slot format (dynamically configured by DL Control Information (DCI) or semi-statically/statically configured by Radio Resource Control (RRC) signaling) through a received Slot Format Indicator (SFI). Note that the following description also applies to a 5G NR frame structure that is TDD.

Fig. 2A-2D illustrate frame structures, and aspects of the present disclosure may be applicable to other wireless communication technologies that may have different frame structures and/or different channels. A frame (10 ms) may be divided into 10 equally sized subframes (1 ms). Each subframe may include one or more slots. The subframe may also include a mini slot, which may include 7, 4, or 2 symbols. Each slot may include 14 or 12 symbols depending on whether the Cyclic Prefix (CP) is normal or extended. For a normal CP, each slot may include 14 symbols, and for an extended CP, each slot may include 12 symbols. The symbols on the DL may be CP Orthogonal Frequency Division Multiplexing (OFDM) (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or Discrete Fourier Transform (DFT) -spread OFDM (DFT-s-OFDM) symbols (also known as single carrier frequency division multiple access (SC-FDMA) symbols) (for power limited scenarios; limited to single stream transmission). The number of slots within a subframe is designed based on the CP and parameters. The parameter design defines the subcarrier spacing (SCS) and in practice defines the symbol length/duration, which is equal to 1/SCS.

For normal CP (14 symbols/slot), different parameter designs μ0 to 4 allow 1, 2, 4, 8 and 16 slots per subframe, respectively. For extended CP, parameter design 2 allows 4 slots per subframe. Accordingly, for normal CP and parameter design μ, there are 14 symbols/slot and 2 ^μ Each slot/subframe. The subcarrier spacing may be equal to 2 ^μ *15kHz, where μ is the parameter design 0 to 4. Thus doing soParameter design μ=0 has a subcarrier spacing of 15kHz, while parameter design μ=4 has a subcarrier spacing of 240 kHz. The symbol length/duration is inversely related to the subcarrier spacing. Fig. 2A to 2D provide examples of a normal CP of 14 symbols per slot and a parameter design μ=2 of 4 slots per subframe. The slot duration is 0.25ms, the subcarrier spacing is 60kHz, and the symbol duration is approximately 16.67 mus. Within the frame set there may be one or more different bandwidth portions (BWP) that are frequency division multiplexed (see fig. 2B). Each BWP may have a specific parameter design and CP (normal or extended).

The resource grid may be used to represent a frame structure. Each slot includes Resource Blocks (RBs) (also referred to as Physical RBs (PRBs)) that extend for 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.

As illustrated in fig. 2A, some REs carry a reference (pilot) signal (RS) for the UE. The RSs may include demodulation RSs (DM-RSs) for channel estimation at the UE (indicated as R for one particular configuration, but other DM-RS configurations are possible) and channel state information reference signals (CSI-RSs). The RSs may also include beam measurement RSs (BRSs), beam Refinement RSs (BRRSs), and phase tracking RSs (PT-RSs).

Fig. 2B illustrates an example of various DL channels within a subframe of a frame. A Physical Downlink Control Channel (PDCCH) carries DCI within one or more Control Channel Elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE including 6 RE groups (REGs), each REG including 12 consecutive REs in an OFDM symbol of an RB. The PDCCH within one BWP may be referred to as a control resource set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space) during a PDCCH monitoring occasion on CORESET, wherein the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWP may be located at higher and/or lower frequencies across the channel bandwidth. The Primary Synchronization Signal (PSS) may be within symbol 2 of a particular subframe of a frame. The PSS is used by the UE 104 to determine subframe/symbol timing and physical layer identity. The Secondary Synchronization Signal (SSS) may be within symbol 4 of a particular subframe of a frame. SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE may determine a Physical Cell Identifier (PCI). Based on the PCI, the UE may determine the location of the DM-RS. A Physical Broadcast Channel (PBCH) carrying a Master Information Block (MIB) may be logically grouped with PSS and SSS to form a Synchronization Signal (SS)/PBCH block (also referred to as an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth, and a System Frame Number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information such as System Information Blocks (SIBs) not transmitted over the PBCH, and paging messages.

As illustrated in fig. 2C, some REs carry DM-RS for channel estimation at the base station (indicated as R for one particular configuration, but other DM-RS configurations are possible). The UE may transmit DM-RS for a Physical Uplink Control Channel (PUCCH) and DM-RS for a Physical Uplink Shared Channel (PUSCH). The PUSCH DM-RS may be transmitted in the previous or the previous two symbols of the PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether the short PUCCH or the long PUCCH is transmitted and depending on the specific PUCCH format used. The UE may transmit Sounding Reference Signals (SRS). The SRS may be transmitted in the last symbol of the subframe. The SRS may have a comb structure, and the UE may transmit the SRS on one of the comb. The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

Fig. 2D illustrates an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in some aspects. The PUCCH carries Uplink Control Information (UCI) such as a scheduling request, a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a Rank Indicator (RI), and hybrid automatic repeat request (HARQ) Acknowledgement (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACKs and/or Negative ACKs (NACKs)). PUSCH carries data and may additionally be used to carry Buffer Status Reports (BSR), power Headroom Reports (PHR), and/or UCI.

Fig. 3 is a block diagram of a base station 310 in communication with a UE 350 in an access network. In DL, IP packets from EPC 160 may be provided to controller/processor 375. Controller/processor 375 implements layer 3 and layer 2 functionality. 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. Controller/processor 375 provides RRC layer functionality associated with the broadcast of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection setup, RRC connection modification, and RRC connection release), inter-Radio Access Technology (RAT) mobility, and measurement configuration of UE measurement reports; PDCP layer functionality associated with header compression/decompression, security (ciphering, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery of upper layer Packet Data Units (PDUs), error correction by ARQ, concatenation of RLC Service Data Units (SDUs), segmentation and reassembly, re-segmentation of RLC data PDUs, and re-ordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing MAC SDUs onto Transport Blocks (TBs), de-multiplexing MAC SDUs from TBs, scheduling information reporting, error correction by HARQ, priority handling, and logical channel priority differentiation.

Transmit (TX) processor 316 and Receive (RX) processor 370 implement layer 1 functionality associated with a variety of signal processing functions. Layer 1, which includes a Physical (PHY) layer, may include error detection on a transport channel, forward Error Correction (FEC) decoding/decoding of a transport channel, interleaving, rate matching, mapping onto a physical channel, modulation/demodulation of a physical channel, and MIMO antenna processing. TX processor 316 handles the mapping to signal constellations based on various modulation schemes, such as binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The coded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to OFDM subcarriers, multiplexed with reference signals (e.g., pilots) in the time and/or frequency domain, and then combined together using an Inverse Fast Fourier Transform (IFFT) to produce a physical channel carrying the time domain OFDM symbol stream. The OFDM streams are spatially precoded to produce a plurality of spatial streams. The channel estimates from the channel estimator 374 may be used to determine the coding and modulation scheme and for spatial processing. The channel estimate may be derived from reference signals and/or channel condition feedback transmitted by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318 TX. Each transmitter 318TX may modulate a Radio Frequency (RF) carrier with a respective spatial stream for transmission.

At the UE 350, each receiver 354RX receives the signal via its respective antenna 352. Each receiver 354RX recovers information modulated onto an RF carrier and provides the information to the Receive (RX) processor 356.TX processor 368 and RX processor 356 implement layer 1 functionality associated with various signal processing functions. RX processor 356 can perform spatial processing on the information to recover any spatial streams destined for UE 350. If there are multiple spatial streams destined for the UE 350, they may be combined into a single OFDM symbol stream by the RX processor 356. 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 comprises a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the signal constellation points most likely to be transmitted by the base station 310. These soft decisions may be based on channel estimates computed by channel estimator 358. These soft decisions are then decoded and deinterleaved to recover the data and control signals that were originally transmitted by the base station 310 on the physical channel. These data and control signals are then provided to a controller/processor 359 that implements layer 3 and layer 2 functionality.

A controller/processor 359 can be associated with the memory 360 that stores program codes and data. 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, cipher interpretation, 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.

Similar to the functionality described in connection with DL transmissions by the base station 310, the controller/processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression/decompression, and security (ciphering, integrity protection, integrity verification); RLC layer functionality associated with upper layer PDU delivery, error correction by ARQ, concatenation, segmentation, and reassembly of RLC SDUs, re-segmentation of RLC data PDUs, and re-ordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing MAC SDUs onto TBs, de-multiplexing MAC SDUs from TBs, scheduling information reporting, error correction by HARQ, priority handling, and logical channel priority differentiation.

Channel estimates, derived by channel estimator 358 from reference signals or feedback transmitted by base station 310, may be used by TX processor 368 to select appropriate coding and modulation schemes, as well as to facilitate spatial processing. The spatial streams generated by TX processor 368 may be provided to different antenna 352 via separate transmitters 354 TX. Each transmitter 354TX may modulate an RF carrier with a respective spatial stream for transmission.

UL transmissions are processed at the base station 310 in a manner similar to that described in connection with the receiver functionality at the UE 350. Each receiver 318RX receives a signal through its corresponding antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to the RX processor 370.

The controller/processor 375 may be associated with a memory 376 that stores program codes and data. Memory 376 may be referred to as a computer-readable medium. In the UL, the controller/processor 375 provides demultiplexing between transport and logical channels, packet reassembly, cipher interpretation, header decompression, control signal processing to recover IP packets from the UE 350. IP packets from controller/processor 375 may be provided to EPC 160. Controller/processor 375 is also responsible for error detection using ACK and/or NACK protocols to support HARQ operations.

At least one of TX processor 368, RX processor 356, and controller/processor 359 may be configured to perform various aspects in conjunction with measurement component 198 of fig. 1.

At least one of TX processor 316, RX processor 370, and controller/processor 375 may be configured to perform various aspects in conjunction with measurement processing component 199 of fig. 1.

In some wireless communication systems, the CSI-RS signals may be used for RRM/mobility control, such as layer 3CSI-RS RRM (which may be referred to as layer 3CSI-RS, CSI-RS L3, or CSI-RS RRM). The UE may report to the network that it supports CSI-RS RRM with or without associated SSB. The network may configure a potential set of CSI-RS resources for both the serving cell and the neighboring cell for UE monitoring and measurement. The UE may perform measurements such as signal-to-noise ratio (SINR) measurements, reference Signal Received Quality (RSRQ) measurements, reference Signal Received Power (RSRP) measurements, and the like. The UE may also record the measurements and report the measurements to the network. In some wireless communication systems, the UE may provide a capability parameter indicating support for CSI-RS measurements, such as by indicating to the network UE capabilities for CSI-RSRP-AndRSRQ-MeasWithSSB or CSI-RSRP-AndRSRQ-MeasWithSSB. These two parameters may indicate whether the UE may perform CSI-RSRP and CSI-RSRQ measurements for layer 3 measurement objects (e.g., for RRM/mobility control). For example, the CSI-RSRP-AndRSRQ-MeasWithSSB capability may indicate whether the UE may perform CSI-RSRP and CSI-RSRQ measurements, where the CSI-RS resources are configured to have an associated SS/PBCH. If the UE indicates different support for the UE capability for different frequency ranges (e.g., FR1 and FR 2), each indication may correspond to a measured frequency range of the target cell. If the UE supports this feature (e.g., CSI-RSRP-AndRSRQ-MeasWithSSB), the UE may need to report the maximum number of CSI-RS measurements based on the number indicated by the network (e.g., maxNumberCSI-RS-RRM-RS-SINR). The CSI-RSRP-AndRSRQ-measwithsb may indicate whether the UE may perform CSI-RSRP and CSI-RSRQ measurements, where CSI-RS resources are configured for transmitting cells of SS/PBCH blocks and without associated SS/PBCH blocks. If the UE indicates different support for the UE capability for different frequency ranges, for example, each indication may correspond to a measured frequency range of the target cell. If the UE supports this feature (e.g., CSI-RSRP-AndRSRQ-MeasWithSSB), the UE may need to report the maximum number of CSI-RS measurements based on the number indicated by the network (e.g., maxNumberCSI-RS-RRM-RS-SINR). The UE capability indication indicates the capability to perform measurements for multiple cells, e.g., without distinguishing between serving and non-serving cells. Thus, neither capability indication enables the UE to perform serving cell CSI-RS RRM resource specific measurements independent of neighbor cell CSI-RS RRM measurements, such as for evaluating interference from neighbor cell traffic. Serving cell specific measurements may be more efficient for the UE. Aspects provided herein enable a UE to measure serving cell CSI-RSRRM resources independent of neighbor cell CSI-RS RRM measurements, e.g., without measuring and/or reporting neighbor cell CSI-RS RRM measurements.

Fig. 4 illustrates an example communication flow 400 between a UE 402 and a base station 404. As illustrated in fig. 4, the UE 402 may transmit a capability indication 406 to the base station 404, the capability indication 406 indicating that serving cell CSI-RS L3 measurements are supported without non-serving cell (e.g., neighbor serving cell) CSI-RS L3 measurements. In some examples, this capability may be referred to as a capability for serving cell measurement/reporting only. The capability may indicate that the UE may perform measurements and/or reporting of L3 measurement objects for the serving cell independently of measurements/reporting for the non-serving cells. For example, the capability may indicate that the UE may restrict measurements to CSI-RS L3 resources belonging to the serving cell. As one example, this capability may be referred to as the csi-RSRP-AndRSRQ-Meas-Serveringcell parameter. However, UE capability parameters for measurements limited to CSI-RS L3 resources of the serving cell may also be mentioned by different names. In some examples, if UE 402 indicates support for measurement of CSI-RS L3 resources limited to the serving cell (e.g., indicates support for CSI-RSRP-AndRSRQ-Meas-ServingCell), the UE may not indicate support for another capability of measurement of CSI-RS L3 resources of the serving cell and the non-serving cell (e.g., may not indicate support for CSI-RSRP-AndRSRQ-measwissb and CSI-RSRP-AndRSRQ-measwiskoutssb).

The capability indication 406 may indicate to the base station 404 that the UE 402 is not intended to enable full RRM/mobility. The base station 404 may utilize the capabilities of the UE to optimize deployment via interference analysis. In some aspects, the capability indication may further indicate that the UE 402 supports serving cell CSI-RS L3 measurements limited to serving beams, e.g., no measurements for non-serving beams are made.

Base station 404 configures layer 3 measurement resources 408 for UE 402. In some aspects, the base station may transmit to the UE 402 a configuration of layer 3 measurement resources 408 including only layer 3 measurement resources for the serving cell. Based on this configuration, the UE 402 may restrict measurement/reporting to serving cell layer 3 measurement resources.

In some aspects, the base station may transmit to the UE 402 a configuration of layer 3 measurement resources 408 including CSI-RSL3 resources 411 for the serving cell and CSI-RS L3 resources for one or more non-serving cells. In some aspects, the UE 402 may extract CSI-RS L3 resources of the serving cell at a higher layer of the UE at 409 and may provide the extracted CSI-RS L3 resources of the serving cell to a lower layer of the UE to perform the measurement. Thus, higher layers may perform actions that limit L3 measurements to serving cells. For example, the Radio Resource Control (RRC) layer of UE 402 may prune/remove CSI-RS L3 resources corresponding to neighboring cells based on their cell Identifiers (IDs) at 409. In some aspects, measurements of CSI-RS L3 resources 411 of the serving cell may be performed at a lower layer of the UE. For example, at 410, the measurement scheduler of the UE 402 may select to measure serving cell resources and not neighbor cell resources by scheduling measurements for CSI-RS L3 resources of the serving cell and not scheduling measurements for non-serving cell CSI-RS L3 resources.

As illustrated at 412, the UE 402 may perform measurements of configured CSI-RS L3 resources, e.g., CSI-RS transmitted by the base station 404. The measurements may include serving cell specific layer 3 measurements, such as SINR, RSRQ, RSRP, etc.

In some aspects, the UE 402 may perform measurements for both serving cell and non-serving cell CSI-RS L3 resources at 412. Subsequently, at 413, the measurement report generation by UE 402 may be limited to the measurement results of the serving cell CSI-RS L3 resources without including neighbor cell measurements in the report.

In some aspects, the UE capability indicated at 406 may be a capability to measure/report CSI-RS L3 resources limited to the serving beam of the UE (e.g., to measure/report CSI-RSL3 resources of the serving beam but not for other beams). As an example, this UE capability may be referred to as csi-RSRP-AndRSRQ-Meas-ServerBunge. If the UE indicates that CSI-RS L3 resources of the serving beam are supported for measurement/reporting without supporting other beams (e.g., CSI-RSRP-AndRSRQ-Meas-ServerngBeam is supported), the UE may not indicate support for other UE capabilities (e.g., measurement/reporting for CSI-RS L3 of the serving cell (e.g., CSI-RSRP-AndRSRQ-Meas-ServerngCell is indicated to support more than the serving beam, CSI-RSRP-AndRSRQ-MeasWithSSB is indicated to support measurements without being limited to the serving cell, and CSI-RSRQ-MeasWithoutSSB is indicated to support measurements without being limited to the serving cell.) similar to the RQ-Meas-ServerngCell, CSI-RSRQ-Meas-ServeringBeam may indicate to the base station 404 that the UE 402 is not intended to enable RRM/mobility, but rather that the measurement of the serving cell is intended to be provided for subsequent analysis by the UE via the particular network.

At 412, the UE 402 may perform measurements for the serving beam of the serving cell and not for the non-serving beam. The UE may limit the monitored resources to those associated with the serving beam of the serving cell. Each CSI-RS RRM resource may be configured to have an associated SSB and cell ID. In some aspects, the UE 402 may determine whether a particular CSI-RS L3 resource is associated with a serving SSB based on the TCI state on its serving cell and perform measurements on CSI-RS L3 resources associated with the serving SSB, and may refrain from performing measurements on CSI-RS L3 resources not associated with the serving SSB, e.g., based on a higher layer determination at 409 or a lower layer determination at 410. For example, the UE 402 may check whether the cell Identifier (ID) associated with the CSI-RS L3 resource is the same as the serving cell ID associated with the UE, and whether the SSB ID associated with the CSI-RS L3 resource is the same as the serving cell SSB associated with the UE.

Thus, the RRC layer may prune CSI-RS L3 resources corresponding to non-serving beams and neighbor cells based on the associated SSB ID and cell ID, the UE measurement scheduler may schedule measurements limited to RRM resources associated with the serving beam of the serving cell, or the UE may generate RRM/mobility reports limited to measurements on CSI-RS L3 resources associated with the serving beam.

At 414, the UE 402 transmits a report including the serving cell CSI-RS L3 resources and not including neighbor cell measurements. The report may include an RRM/mobility control report.

In some wireless communication systems, drive tests are used to measure network performance, such as uplink/downlink coverage, cell power, interference, quality of service, dropped calls for UEs, throughput, handover performance, cell reselection performance, etc. Network performance may be measured based on the MDT mechanism. The MDT enabled UE may periodically report the GPS location of the UE (if the GPS receiver is enabled and the UE supports GPS reporting on layer 3) and may perform CSI-RS L3 measurements for RRM/mobility management, such as SINR measurements, RSRQ measurements, RSRP measurements, etc. The UE may report the measurements to the network. In some examples, the UE may record the measurement results and report the recorded measurements to the network.

The UE may indicate, for example, in one or more capability bits, support of MDT recorded in RRC idle and inactive modes to indicate that the UE supports a recording of downlink pilot strength measurements and an event triggered recording. Based on the capability indication, the UE may transmit an MDT report with MDT measurements for a plurality of cells. Since this capability is for RRC idle and inactive modes, the UE may not distinguish between serving cells and neighboring cells when performing measurements or providing MDT reports.

The MDT report may be one of different forms, such as a logged MDT or an immediate MDT. The logged MDT report may refer to an MDT including measurements that have been buffered at the UE and reported at a later time. The immediate MDT may refer to a runtime MDT in which the UE reports the measurements when the UE performs the measurements, rather than storing the measurements to transmit for the logged MDT at a later time, the number of measurements logged for the downlink pilot strength measurements may be fixed. In RRC connected mode, the UE may provide immediate MDT and DL signal measurements (including cell/beam level measurements) of the serving cell and intra-frequency/inter-RAT neighbor cells.

The UE may perform mobility management reporting or RRM measurements and may provide information about the measurements to the network. In a multi-cell deployment, the network may assign CSI-RS resources in each cell in different directions to achieve finer coverage. The UE may be served by a particular serving cell within a plurality of cells of the network. The periodic CSI-RS resources may be assigned for cell-specific measurements. The UE may indicate to the network that CSI-RS L3 measurements are supported via a capability indication (such as CSI-RSRP-AndRSRQ-measwithsb) indicating whether the UE may perform CSI-RSRP and CSI-RSRQ measurements. The CSI-RS resources may be configured to have an associated SS/PBCH. If the UE indicates parameters differently for FR1 and FR2, each indication may correspond to a measured frequency range of the target cell. If the UE supports this feature of CSI-RS L3 measurement, the UE reports a maximum number of CSI-RS RRM RS SINR measurements (e.g., based on maxNumberCSI-RS-RRM-RS-SINR). Thus, when the UE is configured with L3 measurement resources, the UE reports measurements for neighboring cells and serving cells. The capability indication supports measurements of the target cell, e.g. for mobility management. Since this capability is not specific to the serving cell, if the network configures the UE to have CSI-RS resources from both the serving cell and the neighbor cell, the UE monitors and measures the configured resources regardless of the type of cell, e.g., whether the cell is the serving cell or the neighbor cell. Neither MDT nor CSI-RS RRM enables the UE to measure and report serving cell CSI-RS and/or SSB metrics (e.g., RSRQ, SNR, RSRP) but not neighbor cell CSI-RS and/or SSLB metrics.

However, it may be inefficient for the UE to perform such measurements (e.g., for MDT reporting or CSI-RS RRM) on the serving cell and neighboring cells, e.g., in a periodic or automatic manner. In some MDT use cases, it may be more efficient for the UE to measure and report only the serving cell resources, but the MDT report may include measurements of both the serving cell and neighboring cells. Aspects provided herein enable a UE to efficiently support serving cell measurements for MDT, e.g., independent of or without neighbor cell measurements. For example, the UE may perform serving cell measurements for MDT, but not neighbor cell measurements. The UE may report serving cell measurements for the MDT, but not report, or independently of reporting neighbor cell measurements for the MDT. For example, a network operator may prefer that the UE only provide measurements of the resources of the serving cell. Aspects presented herein implement MDT features including serving cell specific layer 3 measurements, such as SINR, RSRQ, and/or RSRP. For example, aspects presented herein may enable a UE to process measurements only on serving cell layer 3 reference signal resources. If the UE is configured with layer 3 measurement resources (such as SSBs and/or CSI-RSs) in the measurement object; and the UE explicitly or implicitly indicates the ability to support serving cell-only measurements, aspects may enable the UE and the network to cooperate to provide serving cell-specific measurements. The UE may report serving cell specific measurements as an immediate MDT or a logged MDT report. Depending on implementation, the UE may report serving cell specific measurements in a mobility measurement report. Serving cell measurements/reports may enable the UE to reduce memory usage by not collecting non-serving cell or non-serving beam metrics. Aspects may enable reduction in UE complexity by enabling the UE to perform serving cell layer 3 measurements without employing measurement gaps that may be used to perform measurements for non-serving cells. From the UE's perspective, the serving cell measurements may inform the network of the load and interference caused by neighboring cell traffic.

Fig. 5 illustrates an example communication flow 500 between a UE 502 and a base station 504 that includes MDT reporting and/or CSI-RS RRM reporting for a serving cell. The UE 502 may indicate to the network UE capabilities 505, which UE capabilities 505 inform the network that the UE supports measurement/reporting for L3 measurement objects of the serving cell (e.g., without a neighboring cell, or separate from a neighboring cell). In some aspects, the UE capability indication 505 may further include an explicit UE capability indication indicating that the UE 502 supports serving cell measurements and does not support neighbor cell measurements or is independent of neighbor cell measurements. The UE capability indication may be an explicit indication of UE capability to measure CSI-RS L3 resources for the serving cell only. In some examples, the UE capability may be directed to reporting measurements of the serving beam of the serving cell, e.g., not reporting measurements of the non-serving beam. The UE capability indication may be for MDT and may correspond to UE capability reporting measurements on serving cell CSI-RS RRM resources as part of MDT reporting. In some aspects, the indication of UE capability 505 may include a proprietary bit or a dummy bit in a different UE capability. When the base station detects a bit or indication in a different UE capability, the base station may determine that the UE 502 supports serving cell measurements and does not support, or is independent of, neighbor cell measurements, e.g., serving cell only measurements/reports. In some aspects, the UE may use the PLMN ID of a particular network operator to determine whether to apply serving cell measurements. For example, if the UE receives a PLMN ID of a network deploying serving only cell CSI-RS RRM measurements, the UE may provide UE capabilities (e.g., using dummy bits or other indications) to inform the network that the UE supports the capabilities.

In some examples, the UE may determine to apply a serving cell only measurement/reporting configuration without informing the network of the UE's capabilities, e.g., without sending the UE capability indication 505.

As illustrated in fig. 5, the UE 502 may receive a measurement object configuration 506 from the base station 504 such that the UE 502 is configured with layer 3 measurement resources 507, such as SSBs and/or CSI-RSs, for one or more measurement objects. The measurement object may be configured for the UE in RRC signaling. In some aspects, the UE 502 may detect that the network (e.g., the network in which the base station 504 is located) has enabled CSI-RS based mobility by examining a field in the measurement object configuration 506, such as CSI-RS-ResourceConfigMobility in RRC signaling. In some aspects, alternatively or additionally, the UE 502 may receive UE Assistance Information (UAI) from the base station 504 indicating the measurement object configuration 506.

In some aspects, the measurement object configuration 506 may include CSI-RS RRM resources for the serving cell, but not CSI-RS RRM resources for the neighboring cell. The network may configure resources based on UE capability information provided by the UE. The UE may determine to provide serving cell only measurements based on a configuration of resources for the serving cell without resources for neighboring cells. Based on the measurement object configuration 506, the ue 502 may perform measurements on the serving cell at 508 and may transmit the measurements to the base station 504 in an MDT report 510.

In some aspects, the MDT report may be an immediate MDT report. In other aspects, the MDT report may be a logged MDT report.

The measurements may include serving cell specific layer 3 measurements, such as SINR, RSRQ, RSRP, etc. In some aspects, if the measurement object configuration 506 includes CSI-RS RRM resources for the serving cell and not for the neighboring cell, the UE 502 may perform measurements on the serving cell and not on the neighboring cell.

The measurement object configuration 506 may additionally include CSI-RS RRM resources for neighboring cells. In some aspects, if the measurement object configuration 506 includes CSI-RS RRM resources for the serving cell and the neighboring cells, the UE 502 may still perform measurements on the serving cell and not on the neighboring cells. If the network configures RRM resources for multiple cells (e.g., a serving cell and one or more neighbor cells), the UE may measure and report measurements (e.g., RSRP/RSRQ/SNR) for the serving cell CSI-RS resources without measuring and/or reporting neighbor cell resources. For example, the UE 502 may skip measurement/reporting of configured neighbor cell resources based on the UE supporting serving cell measurements. In other aspects, the UE may skip measurement/reporting if the UE is configured with RRM resources for multiple cells. For example, if the measurement object configuration 506 includes CSI-RS RRM resources for the serving cell and neighboring cells, the UE 502 may refrain from performing the measurement and/or may refrain from reporting the measurement to the base station 504, e.g., as illustrated at 512.

In some aspects, the UE 502 may perform measurements for serving beams of the serving cell, but not measurements for non-serving beams. For example, the capability 505 may indicate that the UE supports measurement/reporting of serving beams specific to the serving cell, e.g., does not report measurements of non-serving beams. The capability indication may be an explicit indication of UE capability for reporting measurements of the serving beam of the serving cell (e.g., without reporting other beams/cells). The capability indication may be indicated using one or more bits (e.g., dummy bits or reserved bits) of different UE capabilities. In some aspects, the UE 502 may determine whether a particular CSI-RS RRM resource is associated with a serving SSB based on the TCI state on its serving cell, and perform measurements on CSI-RS RRM resources associated with the serving SSB, and may refrain from performing measurements on CSI-RS RRM resources not associated with the serving SSB. As illustrated at 509, the UE may perform measurements for the serving beam of the serving cell, e.g., without performing measurements for the non-serving beam. For example, the UE 502 may check whether a cell Identifier (ID) associated with the CSI-RS RRM resource is the same as a serving cell ID associated with the UE, and whether an SSB ID associated with the CSI-RS RRM resource is the same as a serving cell SSB associated with the UE. In some examples, the UE uses explicit or implicit indications from the base station 504 to perform service-only beam measurements and/or provide service-only beam reports, such as described above for service-only cell measurements/reports. In some aspects, the UE 502 may report in each report measurements on CSI-RS RRM resources associated with the serving SSB.

Thus, report 510 may include measurements for serving cells, but not measurements for non-serving cells. Report 510 may include measurements for the serving beam, but not for other beams.

Fig. 6 is a flow chart 600 of a method of wireless communication. The method may be performed by a UE (e.g., UE 104; device 1002). The method can enable the UE and the base station to efficiently support the CSI-RS RRM measurement based on the serving cell.

At 602, the UE may transmit, to a base station, an indication indicating that reporting one or more serving cell CSI-RS RRM measurements independent of non-serving cell CSI-RS RRM measurements is supported. For example, 602 may be performed by the UE capability indication component 1042 in fig. 10. In some aspects, as part of 602, at 604, the UE refrains from indicating CSI capability that supports measurements for serving cells and for non-serving cells. In some aspects, as part of 602, at 606, the UE refrains from indicating CSI capability that supports measurements for non-serving cells or for non-serving beams. In some aspects, the indication is included in UE capability information associated with RRM or mobility. In some aspects, the indication further indicates that the support is for a serving beam of a serving cell, the serving beam being associated with the SSB and the cell ID, wherein the UE transmits one or more serving cell CSI-RS RRM measurements for the serving beam of the serving cell but not for a non-serving beam (at 626).

At 608, the UE may receive a configuration of layer 3 measurement resources from the base station. For example, 608 may be performed by configuration receiving component 1044 in fig. 10. In some aspects, the layer 3 measurement resources include one or more CSI-RSs for the serving cell but not for the non-serving cell. In some aspects, the layer 3 measurement resources include CSI-RS resources for serving and non-serving cells. In some aspects, as part of 608, at 610, the UE removes CSI-RS resources for the non-serving cell from layer 3 measurement resources configured for the UE at a higher layer of the UE and provides remaining CSI-RS resources for the serving cell to a lower layer of the UE. In some aspects, the higher layer removes CSI-RS resources for the non-serving cell based on the cell ID of the non-serving cell. In some aspects, the configuration of layer 3 measurement resources for the serving cell indicates one or more CSI-RS RRM resources associated with the SSB and the cell ID. In some aspects, the configuration of layer 3 measurement resources for the serving cell further indicates one or more CSI-RS RRM resources associated with the one or more non-serving cells. In some aspects, as part of 608, the UE prunes one or more CSI-RS RRM resources associated with the non-serving beam based on the one or more SSBs and prunes one or more CSI-RS-RRM resources associated with the one or more non-serving cells based on the one or more IDs at 612.

At 614, the UE may perform one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources. For example, 614 may be performed by measurement component 1046 in fig. 10. In some aspects, as part of 614, the UE determines that one or more CSI-RS RRM resources are associated with the SSB and cell ID associated with the serving beam and performs one or more serving cell CSI-RS RRM measurements using the one or more CSI-RS RRM resources at 616. In some aspects, as part of 614, the UE refrains from performing CSI-RS RRM measurements on the non-serving cell at 618. In some aspects, as part of 614, at 620, the UE performs one or more serving cell CSI-RS RRM measurements for the serving cell and the non-serving cell, wherein the UE reports the one or more serving cell CSI-RS RRM measurements for the serving cell but not for the non-serving cell (at 626). In some aspects, the one or more serving cell CSI-RS RRM measurements include one or more of SINR measurements, RSRQ measurements, or RSRP measurements. In some aspects, as part of 614, the UE refrains from performing CSI-RS RRM measurements on one or more non-serving cells and on non-serving beams at 622. In some aspects, as part of 614, at 624 the UE performs one or more serving cell CSI-RS RRM measurements for the serving cell (including the serving beam and the non-serving beam) and the one or more non-serving cells, wherein the UE transmits the one or more serving cell CSI-RS RRM measurements for the serving beam of the serving cell and does not report the one or more serving cell CSI-RS RRM measurements for the one or more non-serving cells and the non-serving beam.

At 626, the UE may transmit one or more serving cell CSI-RS RRM measurements for the serving cell to the base station. For example, 626 may be performed by reporting component 1048 in fig. 10. In some aspects, a UE transmits one or more serving cell CSI-RS RRM measurements for a serving cell but not a non-serving cell to a base station.

Fig. 7 is a flow chart 700 of a method of wireless communication. The method may be performed by a base station (e.g., base station 102/180; device 1102). The method can enable the UE and the base station to efficiently support the CSI-RS RRM measurement based on the serving cell.

At 702, the base station may receive an indication from the UE indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements. For example, 702 may be performed by the indication receiving component 1142 from fig. 11. In some aspects, the indication is included in UE capability information associated with RRM or mobility.

At 704, the base station may transmit a configuration of layer 3 measurement resources to the UE in response to receiving the indication. For example, 704 may be performed by configuration transfer component 1144 in fig. 11. In some aspects, the layer 3 measurement resources include one or more CSI-RSs for the serving cell but not for the non-serving cell. In some aspects, the layer 3 measurement resources include CSI-RS resources for serving and non-serving cells. In some aspects, the configuration of layer 3 measurement resources for the serving cell indicates one or more CSI-RS RRM resources associated with the SSB and the cell ID.

At 706, the base station may receive one or more serving cell CSI-RS RRM measurements for the serving cell from the UE. For example, 706 may be performed by measurement receiving component 1146 of fig. 11. In some aspects, a base station receives one or more serving cell CSI-RS RRM measurements from a UE of a serving cell instead of a non-serving cell. In some aspects, the one or more serving cell CSI-RS RRM measurements include one or more of: SINR measurements, RSRQ measurements, or RSRP measurements. In some aspects, the indication further indicates that the support is for a serving beam of a serving cell, the serving beam being associated with the SSB and the cell ID. In some aspects, a base station receives one or more serving cell CSI-RS RRM measurements for a serving beam of a serving cell, but not a non-serving beam.

Fig. 8 is a flow chart 800 of a method of wireless communication. The method may be performed by a UE (e.g., UE 104; device 1002). The method may enable the UE and the base station to efficiently support serving cell measurements for MDT.

At 802, the UE may transmit a UE capability indication indicating a serving cell report supporting layer 3 measurement objects, such as a UE capability indication as part of an MDT report. For example, 802 may be performed by the UE capability indication component 1042 in fig. 10. In some aspects, the MDT report in transmission 802 may be the MDT report in transmission 818. In some aspects, the UE capability indication further indicates that serving cell reporting is supported, and layer 3 measurements for non-serving cells are not reported. In some aspects, the UE capability indication is included in a capability field reported for the serving cell. In some aspects, the UE capability indication further indicates a serving cell report supporting layer 3 measurements for a serving beam of the serving cell. In some aspects, the UE capability indication is included in one or more unused bits of the capability field for the same or different capability as the serving cell report for the layer 3 measurement of the serving cell.

At 804, the UE may receive a configuration of layer 3 measurement objects for a serving cell from a base station. For example, 804 may be performed by configuration receiving component 1044 in fig. 10. In some aspects, the configuration includes a layer 3 measurement object for the serving cell. In some aspects, the configuration of the layer 3 measurement object is for a serving cell and one or more non-serving cells. In some aspects, as part of 804, the UE receives a UAI from the base station indicating a configuration at 806. In some aspects, as part of 804, the UE receives RRC signaling indicating the configuration from the base station at 808. In some aspects, as part of 804, the UE decodes a PLMN ID of a network (such as a network in which the base station is located) supporting a serving cell report for layer 3 measurements of the serving cell prior to execution at 812 at 810.

At 812, the UE may perform one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object. For example, 812 may be performed by measurement component 1046 in fig. 10. In some aspects, performing one or more serving cell measurements based on the configuration of the layer 3 measurement object includes performing one or more serving cell measurements on a serving beam instead of on a non-serving beam. In some aspects, as part of 812, the UE refrains from performing layer 3 measurements for one or more non-serving cells at 814. In some aspects, as part of 812, at 816, if the UE receives a configuration of layer 3 measurement objects for multiple cells, the UE refrains from performing layer 3 measurements or refrains from reporting layer 3 measurements.

At 818, the UE may transmit a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object to the base station. For example, 818 may be performed by reporting component 1048 in fig. 10. In some aspects, the UE transmits a serving cell report of one or more serving cell measurements of the layer 3 measurement object in response to receiving a configuration of the layer 3 measurement object for the serving cell. In some aspects, the serving cell report includes an MDT report of one or more serving cell measurements of the layer 3 measurement object. In some aspects, the MDT report is an immediate MDT report. In some aspects, the MDT report is a logged MDT report. In some aspects, the serving cell report includes a measurement report of RRM measurements for mobility management. In some aspects, the one or more serving cell measurements include one or more of: SINR measurements, RSRQ measurements, or RSRP measurements. In some aspects, the serving cell reports one or more serving cell measurement reference signal resources of the layer 3 measurement object without reporting non-serving cell measurements. In some aspects, the layer 3 measurement object includes resources based on one or more SSBs for the serving cell. In some aspects, the layer 3 measurement object includes resources based on one or more CSI-RSs for the serving cell.

Fig. 9 is a flow chart 900 of a method of wireless communication. The method may be performed by a base station (e.g., base station 102/180; device 1102). The method may enable the UE and the base station to efficiently support serving cell measurements for MDT.

At 902, the base station may receive a UE capability indication indicating a serving cell report supporting layer 3 measurement objects, such as a UE capability indication as part of an MDT report. For example, 902 may be performed by the indication receiving component 1142 from fig. 11. In some aspects, the MDT report in the receiving 902 may be the MDT report in the receiving 910. In some aspects, the UE capability indication further indicates that serving cell reporting is supported, and layer 3 measurements for non-serving cells are not reported. In some aspects, the UE capability indication is included in a capability field reported for the serving cell. In some aspects, the UE capability indication further indicates a serving cell report supporting layer 3 measurements for a serving beam of the serving cell. In some aspects, the UE capability indication is included in one or more unused bits of the capability field for the same or different capability as the serving cell report for the layer 3 measurement of the serving cell.

At 904, the base station may transmit a configuration of layer 3 measurement objects for a serving cell to the UE. For example, 904 may be performed by the configuration transfer component 1144 of fig. 11. In some aspects, the configuration includes a layer 3 measurement object for the serving cell. In some aspects, the configuration of the layer 3 measurement object is for a serving cell and one or more non-serving cells. In some aspects, as part of 904, the base station transmits a UAI to the UE indicating the configuration at 906. In some aspects, as part of 904, the base station transmits RRC signaling indicating the configuration to the UE at 908.

At 910, the base station receives, from the UE, a serving cell report of one or more serving cell measurement reference signal resources of a layer 3 measurement object. For example, 910 may be performed by measurement receiving component 1146 in fig. 11. In some aspects, the UE transmits a serving cell report of one or more serving cell measurements of the layer 3 measurement object in response to receiving a configuration of the layer 3 measurement object for the serving cell. In some aspects, the serving cell report includes an MDT report of one or more serving cell measurements of the layer 3 measurement object. In some aspects, the MDT report is an immediate MDT report. In some aspects, the MDT report is a logged MDT report. In some aspects, the serving cell report includes a measurement report of RRM measurements for mobility management. In some aspects, the one or more serving cell measurements include one or more of: SINR measurements, RSRQ measurements, or RSRP measurements. In some aspects, the serving cell reports one or more serving cell measurement reference signal resources of the layer 3 measurement object without reporting non-serving cell measurements. In some aspects, the layer 3 measurement object includes resources based on one or more SSBs for the serving cell. In some aspects, the layer 3 measurement object includes resources based on one or more CSI-RSs for the serving cell.

Fig. 10 is a diagram 1000 illustrating an example of a hardware implementation of a device 1002. The device 1002 is a UE and includes a cellular baseband processor 1004 (also referred to as a modem) coupled to a cellular RF transceiver 1022 and one or more Subscriber Identity Module (SIM) cards 1020, an application processor 1006 coupled to a Secure Digital (SD) card 1008 and a screen 1010, a bluetooth module 1012, a Wireless Local Area Network (WLAN) module 1014, a Global Positioning System (GPS) module 1016, and a power supply 1018. The cellular baseband processor 1004 communicates with the UE 104 and/or BS 102/180 through a cellular RF transceiver 1022. The cellular baseband processor 1004 may include a computer readable medium/memory. The computer readable medium/memory may be non-transitory. The cellular baseband processor 1004 is responsible for general processing, including the execution of software stored on the computer-readable medium/memory. The software, when executed by the cellular baseband processor 1004, causes the cellular baseband processor 1004 to perform the various functions described supra. The computer readable medium/memory can also be used for storing data that is manipulated by the cellular baseband processor 1004 when executing software. Cellular baseband processor 1004 further includes a receiving component 1030, a communication manager 1032, and a transmitting component 1034. The communications manager 1032 includes the one or more illustrated components. The components within the communications manager 1032 may be stored in a computer-readable medium/memory and/or configured as hardware within the cellular baseband processor 1004. The cellular baseband processor 1004 may be a component of the UE 350 and may include the memory 360 and/or at least one of: a TX processor 368, an RX processor 356, and a controller/processor 359. In some aspects, the device 1002 may be a modem chip and include only the baseband processor 1004, and in another configuration, the device 1002 may be an entire UE (e.g., see 350 of fig. 3) and include the additional modules of the device 1002 previously discussed.

The communication manager 1032 may include a UE capability indication component 1042 configured to transmit an indication to the base station indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements, e.g., as described in connection with 302 in fig. 6. The communications manager 1032 may further include a configuration receiving component 1044 configured to receive a configuration of layer 3 measurement resources from a base station, e.g., as described in connection with 608 in fig. 6. The communication manager 1032 may further include a measurement component 1046 configured to perform one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources, e.g., as described in connection with 614 in fig. 6. The communication manager 1032 may further include a reporting component 1048 configured to transmit one or more serving cell CSI-RS RRM measurements for the serving cell to the base station, e.g., as described in connection with 626 in fig. 6.

In some aspects, the UE capability indication component 1042 may be configured to transmit a UE capability indication (such as part of an MDT report) indicating a serving cell report supporting layer 3 measurement objects, e.g., as described in connection with 802 in fig. 8. In some aspects, the configuration receiving component 1044 may be configured to receive a configuration of layer 3 measurement objects for a serving cell from a base station, e.g., as described in connection with 608 in fig. 8. In some aspects, the measurement component 1046 may be configured to perform one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object, e.g., as described in connection with 812 in fig. 8. In some aspects, reporting component 1048 may be configured to transmit a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object to the base station, e.g., as described in connection with 818 in fig. 8.

The apparatus may include additional components to perform each of the blocks of the algorithms in the foregoing flowcharts of fig. 6 and 8. Accordingly, each block in the foregoing flowcharts of fig. 6 and 8 may be performed by components, and the apparatus may include one or more of these components. These components may be one or more hardware components specifically configured to perform the process/algorithm, implemented by a processor configured to perform the process/algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

In some aspects, the device 1002, and in particular the cellular baseband processor 1004, comprises: means for transmitting, to the base station, an indication that the reporting of the one or more serving cell CSI-RS RRM measurements is supported independently of the non-serving cell CSI-RS RRM measurements. The cellular baseband processor 1004 may further include means for receiving a configuration of layer 3 measurement resources from a base station. The cellular baseband processor 1004 may further include means for performing one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources. The cellular baseband processor 1004 may further include means for transmitting one or more serving cell CSI-RS RRM measurements for the serving cell to the base station. The cellular baseband processor 1004 may further include means for suppressing CSI capability indicating support of measurements for serving cells and for non-serving cells. The cellular baseband processor 1004 may further include means for removing CSI-RS resources for a non-serving cell from layer 3 measurement resources configured for the UE at a higher layer of the UE and providing remaining CSI-RS resources for the serving cell to a lower layer of the UE. The cellular baseband processor 1004 may further include means for performing one or more serving cell CSI-RS RRM measurements for the serving cell and the non-serving cell. The cellular baseband processor 1004 may further include means for suppressing CSI capability indicating support of measurements for non-serving cells or for non-serving beams. Cellular baseband processor 1004 may further include means for determining that one or more CSI-RS RRM resources are associated with the SSB and the cell ID associated with the serving beam. The cellular baseband processor 1004 may further include means for performing one or more serving cell CSI-RS RRM measurements using one or more CSI-RS RRM resources. The cellular baseband processor 1004 may further include means for pruning one or more CSI-RS RRM resources associated with the non-serving beam based on the one or more SSBs and pruning one or more CSI-RS-RRM resources associated with the one or more non-serving cells based on the one or more IDs. Cellular baseband processor 1004 may further include means for suppressing CSI-RS RRM measurements performed on one or more non-serving cells and on non-serving beams. The cellular baseband processor 1004 may further include means for performing one or more serving cell CSI-RS RRM measurements for a serving cell (including a serving beam and a non-serving beam) and one or more non-serving cells.

In some aspects, the device 1002, and in particular the cellular baseband processor 1004, comprises: means for receiving a configuration of layer 3 measurement objects for a serving cell from a base station. The cellular baseband processor 1004 may further include means for performing one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object. The cellular baseband processor 1004 may further include means for transmitting to the base station a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object. The cellular baseband processor 1004 may further include means for refraining from performing layer 3 measurements for one or more non-serving cells. The cellular baseband processor 1004 may further include means for transmitting a UE capability indication indicating a serving cell report supporting layer 3 measurement objects as part of the MDT report. The cellular baseband processor 1004 may further include means for decoding PLMN IDs of networks supporting layer 3 measurement of serving cells reporting for the serving cells. The cellular baseband processor 1004 may further include means for refraining from performing layer 3 measurements or refraining from reporting layer 3 measurements if the UE receives a configuration of layer 3 measurement objects for the plurality of cells. The cellular baseband processor 1004 may further include means for receiving a UAI from a base station indicating a configuration. The cellular baseband processor 1004 may further include means for receiving RRC signaling from the base station indicating the configuration.

The foregoing means may be one or more of the foregoing components in the device 1002 configured to perform the functions recited by the foregoing means. As described above, the device 1002 may include a TX processor 368, an RX processor 356, and a controller/processor 359. As such, in some aspects, the foregoing means may be the TX processor 368, the RX processor 356, and the controller/processor 359 configured to perform the functions recited by the foregoing means.

Fig. 11 is a diagram 1100 illustrating an example of a hardware implementation of a device 1102. The device 1102 is a BS and includes a baseband unit 1104. The baseband unit 1104 may communicate with the UE 104 through the cellular RF transceiver 1122. The baseband unit 1104 may include a computer readable medium/memory. The baseband unit 1104 is responsible for general processing, including the execution of software stored on a computer-readable medium/memory. The software, when executed by the baseband unit 1104, causes the baseband unit 1104 to perform the various functions described above. The computer readable medium/memory may also be used for storing data that is manipulated by the baseband unit 1104 when executing software. The baseband unit 1104 further includes a receiving component 1130, a communication manager 1132, and a transmitting component 1134. The communication manager 1132 includes the one or more illustrated components. Components within the communications manager 1132 may be stored in a computer readable medium/memory and/or configured as hardware within the baseband unit 1104. Baseband unit 1104 may be a component of BS 310 and may include memory 376 and/or at least one of the following: TX processor 316, RX processor 370, and controller/processor 375.

The communication manager 1132 includes an indication receiving component 1142 that receives an indication from the UE that one or more serving cell CSI-RS RRM measurements are supported to be reported independent of the non-serving cell CSI-RS RRM measurements, e.g., as described in connection with 702 in fig. 7. The communication manager 1132 further includes a configuration transmission component 1144 that conveys the configuration of layer 3 measurement resources to the UE in response to receiving the indication, such as described in connection with 704 in fig. 7. The communication manager 1132 further includes a measurement receiving component 1146 that receives one or more serving cell CSI-RS RRM measurements for the serving cell from the UE, e.g., as described in connection with 706 in fig. 7.

In some aspects, the indication receiving component 1142 may receive a UE capability indication indicating a serving cell report supporting layer 3 measurement objects as part of an MDT report, e.g., as described in connection with 902 in fig. 9. In some aspects, the configuration transmission component 1144 may transmit the configuration of the layer 3 measurement object for the serving cell to the UE, e.g., as described in connection with 904 in fig. 9. In some aspects, the measurement receiving component 1146 may receive a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object from the UE, e.g., as described in connection with 910 in fig. 9.

In some aspects, the device 1102, specifically the baseband unit 1104, includes: means for transmitting to the UE a configuration of layer 3 measurement objects for the serving cell. The baseband unit 1104 may further include means for receiving, from the UE, a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object. The baseband unit 1104 may further include means for receiving a UE capability indication indicating a serving cell report supporting layer 3 measurement objects as part of the MDT report. The baseband unit 1104 may further include means for transmitting a UAI indicating the configuration to the UE. The baseband unit 1104 may further include means for transmitting RRC signaling indicating the configuration to the UE.

The apparatus may include additional components to perform each of the blocks of the algorithms in the foregoing flowcharts of fig. 7 and 9. Accordingly, each block in the foregoing flowcharts of fig. 7 and 9 may be performed by components, and the apparatus may include one or more of these components. These components may be one or more hardware components specifically configured to perform the process/algorithm, implemented by a processor configured to perform the process/algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

In some aspects, the device 1102, specifically the baseband unit 1104, includes: means for receiving, from the UE, an indication that one or more serving cell CSI-RS RRM measurements are supported to be reported independent of the non-serving cell CSI-RS RRM measurements. The baseband unit 1104 may further include means for transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication. The baseband unit 1104 may further include means for receiving one or more serving cell CSI-RS RRM measurements for the serving cell from the UE.

The foregoing means may be one or more of the foregoing components in the device 1102 configured to perform the functions recited by the foregoing means. As described above, device 1102 may include TX processor 316, RX processor 370, and controller/processor 375. As such, in some aspects, the foregoing means may be the TX processor 316, the RX processor 370, and the controller/processor 375 configured to perform the functions recited by the foregoing means.

It is to be understood that the specific order or hierarchy of the various blocks in the disclosed process/flow diagrams is an illustration of an example approach. It will be appreciated that the specific order or hierarchy of blocks in the processes/flow diagrams may be rearranged based on design preferences. Further, some blocks may be combined or omitted. The accompanying method claims present elements of the various blocks in a sample order, and are not meant to be limited to the specific order or hierarchy presented.

The previous 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 readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown herein, but is to be accorded the full scope consistent with the language claims, wherein reference to an element in the singular is not intended to mean "one and only one" unless specifically so stated, but rather "one or more". Terms such as "if," "when … …," and "at … …" should be read to mean "under the conditions" rather than to imply a direct temporal relationship or reaction. That is, these phrases (e.g., "when … …") do not imply that an action will occur in response to or during the occurrence of an action, but rather merely that a condition is met, and do not require specific or immediate time constraints for the action to occur. The term "exemplary" is used herein to mean "serving as an example, instance, or illustration. Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects. The term "some" means one or more unless specifically stated otherwise. 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 a plurality of a, a plurality of B, or a plurality of C. In particular, 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 a alone, B alone, C, A and B, A and C, B and C, or a and B and C, wherein any such combination may comprise one or more members of A, B or C. The elements of the various aspects described throughout this disclosure are all structural and functional equivalents that are presently or later to be 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. The terms "module," mechanism, "" element, "" device, "and the like may not be a substitute for the term" means. As such, no element of a claim should be construed as a means-plus-function unless the element is explicitly recited using the phrase "means for … …".

The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

Aspect 1 is a method of wireless communication at a UE, comprising: transmitting an indication to the base station indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements; receiving a configuration of layer 3 measurement resources from the base station; performing one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources; and transmitting one or more serving cell CSI-RS RRM measurements for the serving cell to the base station.

Aspect 2 is the method of aspect 1, wherein the UE transmits one or more serving cell CSI-RS RRM measurements of the serving cell but not the non-serving cell to the base station.

Aspect 3 is the method of any one of aspects 1 to 2, further comprising: the suppression indication supports CSI capability for measurements for serving cells and for non-serving cells.

Aspect 4 is the method of any one of aspects 1 to 3, wherein the indication is included in UE capability information associated with RRM or mobility.

Aspect 5 is the method of any one of aspects 1 to 4, wherein the layer 3 measurement resources comprise one or more CSI-RSs for a serving cell but not for a non-serving cell.

Aspect 6 is the method of any one of aspects 1 to 5, wherein the layer 3 measurement resources comprise CSI-RS resources for serving and non-serving cells.

Aspect 7 is the method of any one of aspects 1 to 6, further comprising: CSI-RS resources for a non-serving cell are removed from layer 3 measurement resources configured for the UE at a higher layer of the UE and remaining CSI-RS resources for the serving cell are provided to a lower layer of the UE.

Aspect 8 is the method of any one of aspects 1 to 7, wherein a higher layer removes CSI-RS resources for the non-serving cell based on the ID of the non-serving cell.

Aspect 9 is the method of any one of aspects 1 to 6, further comprising: CSI-RS RRM measurements are suppressed from being performed on non-serving cells.

Aspect 10 is the method of any one of aspects 1 to 6, further comprising: one or more serving cell CSI-RS RRM measurements are performed for the serving cell and the non-serving cell, wherein the UE reports the one or more serving cell CSI-RS RRM measurements for the serving cell but not for the non-serving cell.

Aspect 11 is the method of any one of aspects 1 to 10, wherein the one or more serving cell CSI-RS RRM measurements comprise one or more of: SINR measurements, RSRQ measurements, or RSRP measurements.

Aspect 12 is the method of any one of aspects 1 to 11, wherein the indication further indicates that the support is for a serving beam of a serving cell, the serving beam being associated with an SSB and an ID, wherein the UE transmits one or more serving cell CSI-RS RRM measurements for the serving beam of the serving cell but not for a non-serving beam.

Aspect 13 is the method of any one of aspects 1 to 12, further comprising: the suppression indication supports CSI capability for measurements for non-serving cells or for non-serving beams.

Aspect 14 is the method of any one of aspects 1 to 12, wherein the configuration of layer 3 measurement resources for the serving cell indicates one or more CSI-RS RRM resources associated with the SSB and the cell ID.

Aspect 15 is the method of any one of aspects 1 to 14, wherein performing one or more serving cell CSI-RS RRM measurements on the serving cell based on the configuration of layer 3 measurement resources comprises: determining that one or more CSI-RS RRM resources are associated with an SSB and a cell ID associated with a serving beam; and performing one or more serving cell CSI-RS RRM measurements using the one or more CSI-RS RRM resources.

Aspect 16 is the method of any one of aspects 1 to 15, wherein the configuration of layer 3 measurement resources for the serving cell further indicates one or more CSI-RS RRM resources associated with the one or more non-serving cells.

Aspect 17 is the method of any one of aspects 1 to 16, further comprising: one or more CSI-RS RRM resources associated with the non-serving beam are pruned based on the one or more SSBs, and one or more CSI-RS-RRM resources associated with the one or more non-serving cells are pruned based on the one or more cell IDs.

Aspect 18 is the method of any one of aspects 1 to 16, further comprising: CSI-RS RRM measurements are suppressed from being performed on one or more non-serving cells and on non-serving beams.

Aspect 19 is the method of any one of aspects 1 to 16, further comprising: one or more serving cell CSI-RS RRM measurements for a serving cell (including a serving beam and a non-serving beam) and one or more non-serving cells are performed, wherein the UE transmits the one or more serving cell CSI-RS RRM measurements for the serving beam of the serving cell and does not report the one or more serving cell CSI-RS RRM measurements for the one or more non-serving cells and the non-serving beam.

Aspect 20 is an apparatus for wireless communication at a UE, comprising: a memory; and at least one processor coupled to the memory and configured to: transmitting an indication to the base station indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements; receiving a configuration of layer 3 measurement resources from the base station; performing one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources; and transmitting one or more serving cell CSI-RS RRM measurements for the serving cell to the base station.

Aspect 21 is an apparatus for wireless communication of aspect 20, wherein the at least one processor is configured to perform the method of any of aspects 2-19.

Aspect 22 is an apparatus for wireless communication at a UE, comprising: means for transmitting, to the base station, an indication that the reporting of one or more serving cell CSI-RS RRM measurements is supported independently of the non-serving cell CSI-RS RRM measurements; means for receiving a configuration of layer 3 measurement resources from a base station; means for performing one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources; and transmitting, to the base station, one or more serving cell CSI-RS RRM measurements for the serving cell.

Aspect 23 is an apparatus of aspect 22 for wireless communication, further comprising means for performing the method of any of aspects 2-10.

Aspect 24 is a computer-readable medium storing computer-executable code for use at a UE, which when executed by a processor causes the processor to: transmitting an indication to the base station indicating that reporting of one or more serving cell CSI-RS RRM measurements is supported independent of non-serving cell CSI-RS RRM measurements; receiving a configuration of layer 3 measurement resources from the base station; performing one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources; and transmitting one or more serving cell CSI-RS RRM measurements for the serving cell to the base station.

Aspect 25 is a computer-readable medium of aspect 24, wherein the code, when executed by a processor, causes the processor to perform the method of any of aspects 2-19.

Aspect 26 is a method of wireless communication at a base station, comprising: receiving, from the UE, an indication that one or more serving cell CSI-RS RRM measurements are supported to be reported independent of non-serving cell CSI-RS RRM measurements; transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication; and receiving one or more serving cell CSI-RS RRM measurements for the serving cell from the UE.

Aspect 27 is the method of aspect 26, wherein the base station receives one or more serving cell CSI-RS RRM measurements from the UE for the serving cell instead of the non-serving cell.

Aspect 28 is the method of any one of aspects 26 to 27, wherein the indication is included in UE capability information associated with RRM or mobility.

Aspect 29 is the method of any one of aspects 26 to 28, wherein the layer 3 measurement resources include one or more CSI-RSs for a serving cell but not for a non-serving cell.

Aspect 30 is the method of any one of aspects 26 to 29, wherein the layer 3 measurement resources comprise CSI-RS resources for serving and non-serving cells.

Aspect 31 is the method of any one of aspects 26 to 30, wherein the one or more serving cell CSI-RS RRM measurements comprise one or more of: SINR measurements, RSRQ measurements, or RSRP measurements.

Aspect 32 is the method of any one of aspects 26 to 31, wherein the indication further indicates that the support is for a serving beam of a serving cell, the serving beam being associated with an SSB and an ID, wherein the base station receives one or more serving cell CSI-RS RRM measurements for the serving beam of the serving cell but not for a non-serving beam.

Aspect 33 is the method of any one of aspects 26 to 32, wherein the configuration of layer 3 measurement resources for the serving cell indicates one or more CSI-RS RRM resources associated with the SSB and the cell ID.

Aspect 34 is an apparatus for wireless communication at a base station, comprising: a memory; and at least one processor coupled to the memory and configured to: receiving, from the UE, an indication that one or more serving cell CSI-RS RRM measurements are supported to be reported independent of non-serving cell CSI-RS RRM measurements; transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication; and receiving one or more serving cell CSI-RS RRM measurements for the serving cell from the UE.

Aspect 35 is an apparatus for wireless communication of aspect 34, wherein the at least one processor is configured to perform the method of any of aspects 26-33.

Aspect 36 is an apparatus for wireless communication at a base station, comprising: means for receiving, from the UE, an indication that one or more serving cell CSI-RS RRM measurements are supported to be reported independent of the non-serving cell CSI-RS RRM measurements; means for transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication; and means for receiving one or more serving cell CSI-RS RRM measurements for the serving cell from the UE.

Aspect 37 is an apparatus of aspect 36 for wireless communication, further comprising means for performing the method of any of aspects 26-33.

Aspect 38 is a computer-readable medium storing computer-executable code for use at a base station, which when executed by a processor causes the processor to: receiving, from the UE, an indication that one or more serving cell CSI-RS RRM measurements are supported to be reported independent of non-serving cell CSI-RS RRM measurements; transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication; and receiving one or more serving cell CSI-RS RRM measurements for the serving cell from the UE.

Aspect 39 is a computer-readable medium of aspect 38, wherein the code, when executed by a processor, causes the processor to perform the method of any of aspects 26-33.

Aspect 40 is a method of wireless communication at a UE, comprising: receiving a configuration of layer 3 measurement objects for a serving cell from a base station; performing one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object; and transmitting to the base station a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

The method of aspect 41 of aspect 40, wherein the serving cell reports one or more serving cell measurement reference signal resources of the layer 3 measurement object without reporting non-serving cell measurements.

Aspect 42 is the method of any one of aspects 40 to 41, wherein the layer 3 measurement object includes resources based on one or more SSBs for a serving cell.

Aspect 43 is the method of any one of aspects 40 to 42, wherein the layer 3 measurement object comprises resources based on one or more CSI-RSs for the serving cell.

Aspect 44 is the method of any one of aspects 40 to 43, further comprising: layer 3 measurements for one or more non-serving cells are suppressed from being performed.

Aspect 45 is the method of any one of aspects 40 to 44, wherein the serving cell report includes an MDT report of one or more serving cell measurements of the layer 3 measurement object.

Aspect 46 is the method of any one of aspects 40 to 45, wherein the MDT report is an immediate MDT report.

Aspect 47 is the method of any one of aspects 40 to 45, wherein the MDT report is a logged MDT report.

Aspect 48 is the method of any one of aspects 40 to 47, wherein the serving cell report includes a measurement report of RRM measurements for mobility management.

Aspect 49 is the method of any one of aspects 40 to 48, wherein the one or more serving cell CSI-RS RRM measurements comprise one or more of: SINR measurements, RSRQ measurements, or RSRP measurements.

Aspect 50 is the method of any one of aspects 40 to 49, further comprising: a UE capability indication indicating a serving cell report supporting layer 3 measurement objects is transmitted as part of the MDT report.

Aspect 51 is the method of any one of aspects 40 to 50, wherein the UE capability indication further indicates support of serving cell reporting without reporting layer 3 measurements for non-serving cells.

Aspect 52 is the method of any one of aspects 40 to 51, wherein the UE capability indication is included in a capability field of a serving cell report.

Aspect 53 is the method of any one of aspects 40-52, wherein the UE capability indication further indicates a serving cell report supporting layer 3 measurements of serving beams of the serving cell.

Aspect 54 is the method of any one of aspects 40 to 53, wherein performing one or more serving cell measurements based on the configuration of the layer 3 measurement object includes performing one or more serving cell measurements on a serving beam instead of on a non-serving beam.

Aspect 55 is the method of any one of aspects 40 to 54, wherein the UE capability indication is included in one or more unused bits of a capability field of a capability of reporting the same or different capability as a serving cell measured for layer 3 of the serving cell.

Aspect 56 is the method of any one of aspects 40 to 55, further comprising: before execution, the PLMN IDs of the networks supporting the layer 3 measurement for the serving cell reporting are decoded.

Aspect 57 is the method of any one of aspects 40 to 56, wherein the configuration includes a layer 3 measurement object for a serving cell.

Aspect 58 is the method of any one of aspects 40 to 57, wherein the UE transmits a serving cell report of one or more serving cell measurements of the layer 3 measurement object in response to receiving a configuration of the layer 3 measurement object for the serving cell.

Aspect 59 is the method of any one of aspects 40 to 58, wherein the configuration of the layer 3 measurement object is for a serving cell and one or more non-serving cells.

Aspect 60 is the method of any one of aspects 40 to 59, further comprising: if the UE receives a configuration of a layer 3 measurement object for a plurality of cells, performing the layer 3 measurement or reporting the layer 3 measurement is suppressed.

Aspect 61 is the method of any one of aspects 40 to 60, further comprising: a UAI indicating a configuration is received from a base station.

Aspect 62 is the method of any one of aspects 40 to 61, further comprising: RRC signaling indicating configuration is received from the base station.

Aspect 63 is an apparatus for wireless communication at a UE, comprising: a memory; and at least one processor coupled to the memory and configured to: receiving a configuration of layer 3 measurement objects for a serving cell from a base station; performing one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object; and transmitting to the base station a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

Aspect 64 is an apparatus for wireless communication of aspect 63, wherein the at least one processor is configured to perform the method of any of aspects 41-62.

Aspect 65 is an apparatus for wireless communication at a UE, comprising: means for receiving a configuration of layer 3 measurement objects for a serving cell from a base station; means for performing one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object; and means for transmitting to the base station a serving cell report of one or more serving cells of the layer 3 measurement object measurement reference signal resources.

Aspect 66 is an apparatus for wireless communication of aspect 65, further comprising means for performing the method of any of aspects 41-62.

Aspect 67 is a computer-readable medium storing computer-executable code for use at a UE, which when executed by a processor causes the processor to: receiving a configuration of layer 3 measurement objects for a serving cell from a base station; performing one or more serving cell measurements of one or more layer 3 measurement reference signal resources for the serving cell based on the configuration of the layer 3 measurement object; and transmitting to the base station a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

Aspect 68 is a computer-readable medium of aspect 67, wherein the code, when executed by a processor, causes the processor to perform the method of any of aspects 41-62.

Aspect 69 is a method of wireless communication at a base station, comprising: transmitting to the UE a configuration of layer 3 measurement objects for the serving cell; and receiving, from the UE, a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

The method of aspect 70 of aspect 69, wherein the serving cell reports one or more serving cell measurement reference signal resources of the layer 3 measurement object without reporting non-serving cell measurements.

Aspect 71 is the method of any one of aspects 69 to 70, wherein the layer 3 measurement object includes resources based on one or more SSBs for a serving cell.

Aspect 72 is the method of any one of aspects 69 to 71, wherein the layer 3 measurement object includes resources based on one or more CSI-RSs for a serving cell.

Aspect 73 is the method of any one of aspects 69 to 72, wherein the serving cell report includes an MDT report of one or more serving cell measurements of the layer 3 measurement object.

Aspect 74 is the method of any one of aspects 69 to 72, wherein the MDT report is an immediate MDT report.

Aspect 75 is the method of any one of aspects 69 to 74, wherein the MDT report is a logged MDT report.

Aspect 76 is the method of any one of aspects 69 to 75, wherein the serving cell report includes a measurement report for RRM measurements for mobility management.

Aspect 77 is the method of any one of aspects 69 to 76, wherein the one or more serving cell measurements include one or more of: SINR measurements, RSRQ measurements, or RSRP measurements.

Aspect 78 is the method of any one of aspects 69 to 77, further comprising: a UE capability indication indicating a serving cell report supporting layer 3 measurement objects is received as part of the MDT report.

Aspect 79 is the method of any one of aspects 69 to 78, wherein the UE capability indication further indicates support of serving cell reporting without reporting layer 3 measurements not for the serving cell.

Aspect 80 is the method of any one of aspects 69 to 79, wherein the UE capability indication is included in a capability field of a serving cell report.

Aspect 81 is the method of any one of aspects 69 to 80, wherein the UE capability indication further indicates a serving cell report supporting layer 3 measurements of serving beams of the serving cell.

Aspect 82 is the method of any one of aspects 69 to 81, wherein the UE capability indication is included in one or more unused bits of a capability field of a capability of the same or different as a serving cell report measured for layer 3 of the serving cell.

Aspect 83 is the method of any one of aspects 69 to 82, wherein the configuration includes a layer 3 measurement object for a serving cell.

Aspect 84 is the method of any one of aspects 69 to 83, wherein the configuration of the layer 3 measurement object is for a serving cell and one or more non-serving cells.

Aspect 85 is the method of aspects 69 to 84, further comprising: the UAI indicating the configuration is transmitted to the UE.

Aspect 86 is the method of aspects 69 to 85, further comprising: RRC signaling indicating configuration is transmitted to the UE.

Aspect 87 is an apparatus for wireless communication at a base station, comprising: a memory; and at least one processor coupled to the memory and configured to: transmitting to the UE a configuration of layer 3 measurement objects for the serving cell; and receiving, from the UE, a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

Aspect 88 is an apparatus for wireless communication of aspect 87, wherein the at least one processor is configured to perform the method of any of aspects 69-86.

Aspect 89 is an apparatus for wireless communication at a base station, comprising: means for transmitting to the UE a configuration of layer 3 measurement objects for the serving cell; and means for receiving, from the UE, a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

Aspect 90 is an apparatus for wireless communication of aspect 89, further comprising means for performing the method of any of aspects 69-86.

Aspect 91 is a computer-readable medium storing computer-executable code for use at a base station, which when executed by a processor causes the processor to: transmitting to the UE a configuration of layer 3 measurement objects for the serving cell; and receiving, from the UE, a serving cell report of one or more serving cell measurement reference signal resources of the layer 3 measurement object.

Aspect 92 is a computer-readable medium of aspect 91, wherein the code, when executed by a processor, causes the processor to perform the method of any of aspects 69-86.

Claims (30)

1. An apparatus for wireless communication at a User Equipment (UE), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

transmitting an indication to the base station indicating support for reporting one or more serving cell channel state information reference signal (CSI-RS) Radio Resource Management (RRM) measurements independent of the RRM measurements;

receiving a configuration of layer 3 measurement resources from the base station;

performing the one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources; and

Transmitting the one or more serving cell CSI-RS RRM measurements for a serving cell to the base station.

2. The apparatus of claim 1, wherein the UE transmits the one or more serving cell CSI-RS RRM measurements for the serving cell but not the non-serving cell to the base station.

3. The apparatus of claim 1, wherein the at least one processor is further configured to:

the suppression indication supports measured Channel State Information (CSI) capabilities for the serving cell and for non-serving cells.

4. The apparatus of claim 1, wherein the indication is included in UE capability information associated with Radio Resource Management (RRM) or mobility.

5. The apparatus of claim 1, wherein the layer 3 measurement resources comprise one or more CSI-RS for the serving cell but not for a non-serving cell.

6. The apparatus of claim 1, wherein the layer 3 measurement resources comprise CSI-RS resources for the serving cell and non-serving cell.

7. The apparatus of claim 6, wherein the at least one processor is further configured to:

At a higher layer of the UE, CSI-RS resources for the non-serving cell are removed from the layer 3 measurement resources configured for the UE, and remaining CSI-RS resources for the serving cell are provided to a lower layer of the UE, wherein the higher layer removes CSI-RS resources for the non-serving cell based on a cell Identifier (ID) for the non-serving cell.

8. The apparatus of claim 6, wherein the at least one processor is further configured to:

and refraining from performing CSI-RS RRM measurements on the non-serving cell.

9. The apparatus of claim 6, wherein the at least one processor is further configured to:

the method further includes performing the one or more serving cell CSI-RS RRM measurements for the serving cell and the non-serving cell, wherein the UE reports the one or more serving cell CSI-RS RRM measurements for the serving cell but not for the non-serving cell.

10. The apparatus of claim 1, wherein the one or more serving cell CSI-RS RRM measurements comprise one or more of: signal-to-noise ratio (SINR) measurements, reference Signal Received Quality (RSRQ) measurements, or Reference Signal Received Power (RSRP) measurements.

11. The apparatus of claim 1, wherein the indication further indicates that the support is for a serving beam of the serving cell, the serving beam being associated with a Synchronization Signal Block (SSB) and a cell Identifier (ID), wherein the UE transmits the serving beam for the serving cell but not the one or more serving cell CSI-RS RRM measurements for non-serving beams; and wherein the at least one processor is further configured to:

the suppression indication supports measured Channel State Information (CSI) capability for non-serving cells or for non-serving beams.

12. The apparatus of claim 11, wherein the configuration of layer 3 measurement resources for the serving cell indicates one or more CSI-RS RRM resources associated with the SSB and the cell ID.

13. The apparatus of claim 11, wherein the configuration of layer 3 measurement resources for the serving cell further indicates one or more CSI-RS RRM resources associated with one or more non-serving cells.

14. The apparatus of claim 11, further comprising a transceiver coupled to the at least one processor, and wherein the at least one processor is further configured to:

One or more CSI-RS RRM resources associated with the non-serving beam are pruned based on one or more Synchronization Signal Blocks (SSBs), and one or more CSI-RS-RRM resources associated with the one or more non-serving cells are pruned based on one or more cell Identifiers (IDs).

15. A method of wireless communication at a User Equipment (UE), comprising:

transmitting an indication to the base station indicating support for reporting one or more serving cell channel state information reference signal (CSI-RS) Radio Resource Management (RRM) measurements independent of the RRM measurements;

receiving a configuration of layer 3 measurement resources from the base station;

performing the one or more serving cell CSI-RS RRM measurements based on the configuration of layer 3 measurement resources; and

transmitting the one or more serving cell CSI-RS RRM measurements for a serving cell to the base station.

16. The method of claim 15, wherein the UE transmits the one or more serving cell CSI-RS RRM measurements for the serving cell but not the non-serving cell to the base station.

17. The method of claim 15, further comprising:

The suppression indication supports measured Channel State Information (CSI) capabilities for the serving cell and for non-serving cells.

18. The method of claim 15, wherein the indication is included in UE capability information associated with Radio Resource Management (RRM) or mobility.

19. The method of claim 15, wherein the layer 3 measurement resources comprise one or more CSI-RS for the serving cell but not for a non-serving cell.

20. The method of claim 15, wherein the layer 3 measurement resources comprise CSI-RS resources for the serving cell and non-serving cell.

21. The method of claim 20, further comprising:

at a higher layer of the UE, CSI-RS resources for the non-serving cell are removed from the layer 3 measurement resources configured for the UE, and remaining CSI-RS resources for the serving cell are provided to a lower layer of the UE, wherein the higher layer removes CSI-RS resources for the non-serving cell based on a cell Identifier (ID) for the non-serving cell.

22. The method of claim 20, further comprising:

And refraining from performing CSI-RS RRM measurements on the non-serving cell.

23. The method of claim 20, further comprising:

the method further includes performing the one or more serving cell CSI-RS RRM measurements for the serving cell and the non-serving cell, wherein the UE reports the one or more serving cell CSI-RS RRM measurements for the serving cell but not for the non-serving cell.

24. The method of claim 15, wherein the one or more serving cell CSI-RS RRM measurements comprise one or more of: signal-to-noise ratio (SINR) measurements, reference Signal Received Quality (RSRQ) measurements, or Reference Signal Received Power (RSRP) measurements.

25. The method of claim 15, wherein the indication further indicates that the support is for a serving beam of the serving cell, the serving beam being associated with a Synchronization Signal Block (SSB) and a cell Identifier (ID), wherein the UE transmits the serving beam for the serving cell but not the one or more serving cell CSI-RS RRM measurements for non-serving beams.

26. The method of claim 25, further comprising:

the suppression indication supports measured Channel State Information (CSI) capability for non-serving cells or for non-serving beams.

27. The method of claim 25, wherein the configuration of layer 3 measurement resources for the serving cell further indicates one or more CSI-RS RRM resources associated with one or more non-serving cells.

28. The method of claim 27, further comprising:

one or more CSI-RS RRM resources associated with the non-serving beam are pruned based on one or more Synchronization Signal Blocks (SSBs), and one or more CSI-RS-RRM resources associated with the one or more non-serving cells are pruned based on one or more cell Identifiers (IDs).

29. An apparatus for wireless communication at a base station, comprising:

a memory; and

at least one processor coupled to the memory and configured to:

receiving, from a User Equipment (UE), an indication that one or more serving cell channel state information reference signal (CSI-RS) Radio Resource Management (RRM) measurements are supported to be reported independently of the RRM measurements;

Transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication; and

the one or more serving cell CSI-RS RRM measurements for a serving cell are received from the UE.

30. A method of wireless communication at a base station, comprising:

receiving, from a User Equipment (UE), an indication that one or more serving cell channel state information reference signal (CSI-RS) Radio Resource Management (RRM) measurements are supported to be reported independently of the RRM measurements;

transmitting a configuration of layer 3 measurement resources to the UE in response to receiving the indication; and

the one or more serving cell CSI-RS RRM measurements for a serving cell are received from the UE.