Dynamic Channel State Information (CSI) Measurement Gaps for Bandwidth-Constrained Low-Complexity User Equipment

Abstract

A user equipment for wireless communication is provided. The UE operates within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of a total bandwidth of the component carrier, determines a configuration of a dynamic channel state information (CSI) measurement gap, the dynamic CSI measurement gap includes a channel state information (CSI) measurement resource having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP, measures the CSI measurement resource included in the dynamic CSI measurement gap, and sends a CSI report based on the measured CSI measurement resource.

Description

Technical Field

[0001] The present disclosure relates generally to communication systems, and more particularly to dynamic channel state information (CSI) measurement gaps for bandwidth-constrained low-complexity user equipment (UE). Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcast. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0003] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a municipal, national, regional, and even global level. An example of a telecommunication standard is 5G New Radio (NR). 5G NR is part of the continued mobile broadband evolution released by the 3rd Generation Partnership Project (3GPP) to meet new requirements related to latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)), and other requirements. 5G NR includes services related to enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. 5G NR technology requires further improvements. These improvements may also be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0004] A simplified overview of one or more aspects is given below to provide a basic understanding of these aspects. This summary is not an extensive overview of all expected aspects, and is intended to neither identify the key or critical elements of all aspects nor describe the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0005] A user equipment for wireless communication is provided. The UE operates within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of a total bandwidth of the component carrier, determines a configuration of a dynamic channel state information (CSI) measurement gap, the dynamic CSI measurement gap includes a channel state information (CSI) measurement resource having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP, measures the CSI measurement resource included in the dynamic CSI measurement gap, and sends a CSI report based on the measured CSI measurement resource.

[0006] To accomplish the above and related ends, one or more aspects include features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of only some of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0008] Figure 2A , Figure 2B , Figure 2C and Figure 2D 2 are diagrams showing examples of a first 5G / NR frame, a DL channel within a 5G / NR subframe, a second 5G / NR frame, and a UL channel within a 5G / NR subframe, respectively.

[0009] Figure 3 is a diagram showing an example of a base station and a user equipment (UE) in an access network.

[0010] Figure 4 is a diagram illustrating example bandwidth part (BWP) frequency domain (FD) offsets for a dynamic channel state information measurement gap (CSI-MGS) in accordance with various aspects of the present disclosure.

[0011] Figure 5 is a diagram illustrating implicit indication of frequency domain (FD) resources for channel state information (CSI) measurements in accordance with various aspects of the present disclosure.

[0012] Figure 6 is a flow chart of a wireless communication method.

[0013] Figure 7 is a conceptual data flow diagram illustrating the flow of data between different parts / components in an example apparatus.

[0014] Figure 8 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system. DETAILED DESCRIPTION

[0015] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configuration in which the concepts described herein may be practiced. In order to provide a thorough understanding of the various concepts, the detailed description includes specific details. However, it is apparent to those skilled in the art that these concepts may be practiced without these specific details. In some cases, well-known structures and components are shown in block diagram form to avoid confusion with these concepts.

[0016] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and design constraints imposed on the overall system.

[0017] For example, an element, or any part of an element, or any combination of elements, may be implemented as a "processing system" including 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, systems on chips (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform various functions described throughout the present disclosure. One or more processors in a processing system may execute software. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes, functions, etc., whether or not referred to as software, firmware, middleware, microcode, hardware description languages, or other.

[0018] Therefore, in one or more example embodiments, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on a computer-readable medium or encoded as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media. Storage media may be any available medium that a computer can access. As an example and not limitation, such a computer-readable medium may include a random access memory (RAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), an optical disk storage, a magnetic disk storage, other magnetic storage devices, a combination of computer-readable media of the above types, or any other medium that can be used to store computer executable code in the form of computer-accessible instructions or data structures.

[0019] Figure 1 1 is a diagram showing an example of a wireless communication system and access network 100. The wireless communication system (also referred to 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 (5GC)). The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell includes a base station. A cell may include a femto cell, a pico cell, and a micro cell.

[0020] Base stations 102 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a backhaul link 132 (e.g., an S1 interface). Base stations 102 configured for 5G NR (collectively referred to as the Next Generation RAN (NG-RAN)) may interface with the core network 190 via a backhaul link 184. The base stations 102 may perform one or more of the following functions, among other functions: transmission of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and device tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other directly or indirectly (eg, through the EPC 160 or the core network 190) via a backhaul link 134 (eg, an X2 interface). The backhaul link 134 may be wired or wireless.

[0021] Base station 102 can communicate wirelessly with UE 104. Each of base stations 102 can provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' can have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. A network containing both small cells and macro cells can be referred to as a heterogeneous network. A heterogeneous network can also include a home evolved Node B (eNB) (HeNB), which can provide services to a restricted group called a closed subscriber group (CSG). The communication link 120 between base station 102 and UE 104 can include an uplink (UL) (also called a reverse link) transmission from UE 104 to base station 102 and / or a downlink (DL) (also called a forward link) transmission from base station 102 to UE 104. The communication link 120 can use multiple input multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link can be through one or more carriers. The base station 102 / UE 104 may use up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth spectrum for each carrier allocated in a carrier aggregation for a total of up to Yx MHz (x component carriers) for transmission in each direction. The carriers may be adjacent to each other or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​than for UL). The component carriers may include one 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).

[0022] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through various wireless D2D communication systems, such as FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on IEEE 802.11 standards, LTE, or NR.

[0023] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 in the 5 GHz unlicensed spectrum via a communication link 154. 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.

[0024] The small cell 102' may operate in licensed and / or unlicensed spectrum. When operating in the unlicensed spectrum, the small cell 102' may employ NR and use the same 5 GHz unlicensed spectrum used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed spectrum may enhance coverage and / or increase capacity of the access network.

[0025] The base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include an eNB, a gNodeB (gNB), or another type of base station. Some base stations (e.g., gNB 180) may operate in the traditional sub-6 GHz spectrum, millimeter wave (mmW) frequencies, and / or near millimeter wave frequencies to communicate with the UE 104. When the gNB 180 operates at or near millimeter wave frequencies, the gNB 180 may be referred to as a millimeter wave base station. Extremely high frequency (EHF) is a portion of the radio frequency in the electromagnetic spectrum. EHF has a frequency of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. Radio waves in the frequency band may be referred to as millimeter waves. Near millimeter waves can extend down to a frequency of 3 GHz with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz and is also called centimeter waves. Communications using millimeter wave / near millimeter wave radio frequency bands (e.g., 3 GHz-300 GHz) have extremely high path losses and short distances. The mmWave base station 180 may utilize beamforming 182 of the UE 104 to compensate for the extremely high path loss and short distance.

[0026] The base station 180 may transmit beamformed signals in one or more transmit directions 182' to the UE 104. The UE 104 may receive beamformed signals from the base station 180 in one or more receive directions 182". The UE 104 may also transmit beamformed signals to the base station 180 in one or more transmit directions. The base station 180 may receive beamformed signals from the UE 104 in one or more receive directions. The base station 180 / UE 104 may perform beam training to determine the best receive and transmit directions for each of the base stations 180 / UE 104. The transmit and receive directions of the base station 180 may be the same or different. The transmit and receive directions of the UE 104 may be the same or different.

[0027] The 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. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve 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 services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and collecting eMBMS-related billing information.

[0028] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. The AMF 192 may communicate with a unified data management (UDM) 196. The AMF 192 is a control node that handles signaling between the UE 104 and the core network 190. Typically, the AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are transmitted through the UPF 195. The UPF 195 provides UE IP address allocation and other functions. The UPF 195 is connected to an IP service 197. The IP service 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services.

[0029] A base station may also be referred to as a gNB, Node B, evolved Node B (eNB), access point, basic transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), transmit receive point (TRP), or some other suitable term. Base station 102 provides an access point to EPC 160 or core network 190 for UE 104. Examples of UE 104 include a cellular phone, 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., an MP3 player), a camera, a game console, a tablet computer, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, large or small kitchen appliances, a medical device, an implant, a sensor / actuator, a display, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., a parking meter, a gas pump, a toaster, a vehicle, a heart monitor, etc.). UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handheld device, a user agent, a mobile client, a client, or some other suitable terminology.

[0030] Reference again Figure 1 In certain aspects, the UE 104 can include a dynamic channel state information (CSI) measurement gap determining component 198. The dynamic CSI measurement gap can include CSI resources (e.g., CSI resources transmitted by the base station 102) within the total bandwidth of the component carrier and outside the active bandwidth portion of the UE 104.

[0031] Figure 2A FIG200 is a diagram showing an example of a first subframe within a 5G / NR frame structure. Figure 2B FIG230 is a diagram showing an example of DL channels within a 5G / NR subframe. Figure 2C FIG250 is a diagram showing an example of a second subframe within a 5G / NR frame structure. Figure 2D FIG280 is a diagram illustrating an example of UL channels within a 5G / NR subframe. The 5G / NR frame structure may implement a frequency domain division (FDD) scheme, where for a particular set of subcarriers (carrier system bandwidth), subframes within a subcarrier set are dedicated to either DL or UL, or may implement a time domain division (TDD) scheme, where for a particular set of subcarriers (carrier system bandwidth), subframes within a subcarrier set are dedicated to both DL and UL. Figure 2A , 2CIn the example provided, it is assumed that the 5G / NR frame structure is TDD, where subframe 4 is configured as slot format 28 (mainly DL), where D is DL, U is UL, and X is flexibly used between DL / UL, and subframe 3 is configured as slot format 34 (mainly UL). Although subframes 3 and 4 are shown with slot formats 34 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are DL and UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The UE is configured with the slot format through the received slot format indicator (SFI) (dynamically configured through DL control information (DCI), or semi-statically / statically configured through radio resource control (RRC) signaling). Note that the following description also applies to the 5G / NR frame structure of TDD.

[0032] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include mini-slots, which may include 7, 4, or 2 symbols. Depending on the slot configuration, each time slot may include 7 or 14 symbols. For slot configuration 0, each time slot may include 14 symbols, and for slot configuration 1, each time slot may include 7 symbols. The symbols on the DL may be cyclic prefix (CP) 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 time slots within a subframe is based on the slot configuration and parameters. For slot configuration 0, different parameters μ0 to 5 allow 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different parameters 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Therefore, for slot configuration 0 and parameter μ, there are 14 symbols per slot and 2 per subframe. μ time slots. The subcarrier spacing and symbol length / duration are functions of parameters. The subcarrier spacing can be equal to 2 μ *15kKz, where μ is a parameter 0 to 5. Thus, parameter μ=0 has a subcarrier spacing of 15kHz and parameter μ=5 has a subcarrier spacing of 480kHz. The symbol length / duration is inversely proportional to the subcarrier spacing. Figures 2A-2D An example is provided for slot configuration 0 with 14 symbols per slot and a number μ = 0 with 1 slot per subframe. The subcarrier spacing is 15 kHz and the symbol duration is approximately 66.7 μs.

[0033] A resource grid may be used to represent the frame structure. Each slot includes a resource block (RB) (also called a physical RB (PRB)) extending 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0034] like Figure 2A As shown, some REs carry reference (pilot) signals (RS) of the UE. RS may include demodulation RS (DM-RS) (indicated as R for a specific configuration) x , where 100x is the port number, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0035] Figure 2B Examples of various DL channels within a subframe of a frame are shown. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE includes nine RE groups (REGs), and in an OFDM symbol, each REG includes four consecutive REs. The primary synchronization signal (PSS) can be within symbol 2 of a specific subframe of the frame. The PSS is used by the UE 104 to determine the subframe / symbol timing and the physical layer identification. The secondary synchronization signal (SSS) can be within symbol 4 of a specific subframe of the frame. The UE uses the SSS to determine the physical layer cell identification group number and the radio frame timing. Based on the physical layer identification and the physical layer cell identification group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the above-mentioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides multiple RBs in the system bandwidth and a system frame number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not sent through the PBCH (eg, System Information Block (SIB) and paging messages).

[0036] like Figure 2CAs shown, some REs carry DM-RS for channel estimation at the base station (indicated as R for one specific configuration, but other DM-RS configurations are possible). The UE can send DM-RS for the physical uplink control channel (PUCCH) and DM-RS for the physical uplink shared channel (PUSCH). The PUSCH DM-RS can be sent in the first or two symbols of the PUSCH. The PUCCH DM-RS can be sent in different configurations depending on whether a short PUCCH or a long PUCCH is sent and the specific PUCCH format used. Although not shown, the UE can send a sounding reference signal (SRS). The SRS can be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0037] Figure 2D Examples of various UL channels within a subframe of a frame are shown. The PUCCH may be located as shown in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and HARQ ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0038] Figure 33 is a block diagram of a base station 310 communicating with a UE 350 in an access network. In the DL, IP packets from the EPC 160 may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functions. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides RRC layer functions associated with broadcasting system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with upper layer packet data unit (PDU) transmission, error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs to transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel priority.

[0039] The transmit (TX) processor 316 and the receive (RX) processor 370 implement layer 1 functions associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error correction on the transmission channel, forward error correction (FEC) decoding / decoding of the transmission channel, interleaving, rate matching, mapping to physical channels, modulation / demodulation of physical channels, and MIMO antenna processing. The TX processor 316 processes the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The decoded symbols and modulated symbols may then be divided into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and / or frequency domain, and then combined together using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to produce multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine coding and modulation schemes, as well as for spatial processing. The channel estimate may be derived from a reference signal 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 318TX. Each transmitter 318TX may modulate an RF carrier with a respective spatial stream for transmission.

[0040] At the UE 350, each receiver 354RX receives a signal through its respective antenna 352. Each receiver 354RX recovers information modulated onto an RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functions associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream destined for the UE 350. If multiple spatial streams are destined for the UE 350, the RX processor 356 can combine them into a single OFDM symbol stream. The RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. By determining the most likely signal constellation point sent by the base station 310, the symbols and reference signals on each subcarrier are recovered and demodulated. These soft decisions can be based on channel estimates calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by the base station 310. The data and control signals are then provided to the controller / processor 359.

[0041] Controller / processor 359 may be associated with memory 360 which stores program codes and data. Memory 360 may be referred to as a computer-readable medium.U In the L, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 359 is also responsible for error correction using an ACK and / or NACK protocol to support HARQ operations.

[0042] Similar to the functions described in conjunction with the DL transmission of the base station 310, the controller / processor 359 provides RRC layer functions associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functions associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with transmission of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs to TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority processing, and logical channel priority.

[0043] The TX processor 368 may select the appropriate coding and modulation schemes and facilitate spatial processing using channel estimates derived by the channel estimator 358 from a reference signal or feedback transmitted by the base station 310. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a respective spatial stream for transmission.

[0044] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to a RX processor 370.

[0045] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets from the UE 350. The IP packets from the controller / processor 375 may be provided to the EPC 160. The controller / processor 375 is also responsible for error correction using ACK and / or NACK protocols to support HARQ operations.

[0046] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 Aspects related to the channel state information measurement gap (CSI-MG) determination component 198.

[0047] A 5G NR network may implement a feature set that supports reduced complexity UEs (also referred to as NR-Light). In some examples, the reduced complexity UEs may include wearable devices, industrial sensors, video surveillance equipment (e.g., fixed cameras), and / or other suitable devices. Compared to a standard UE (e.g., a smartphone), the reduced complexity UE may have lower wireless transmit power, fewer antennas (e.g., antennas for transmission and / or reception), reduced bandwidth for wireless transmission and / or reception, reduced computational complexity / memory, and / or longer battery life. For example, a reduced complexity UE may have a bandwidth in the range of 5.0 MHz to 20 MHz, while a standard UE may have a bandwidth of 100 MHz. An example objective of the present disclosure is to enhance coexistence between 5G NR reduced complexity UEs and 5G NR standard UEs.

[0048] 5G NR networks can support very large operating bandwidths relative to previous generations of cellular networks (e.g., LTE). However, requiring the UE to operate over the entire bandwidth of the 5G NR network may introduce unnecessary complexity to the operation of the UE and may significantly increase the power consumption of the UE. Therefore, in order to avoid requiring the operating bandwidth of the UE to match the full bandwidth of the cell (also known as the carrier bandwidth or component carrier bandwidth) in the 5G NR network, 5G NR introduces the concept of bandwidth part (BWP). For example, a BWP (e.g., a configured frequency band) may allow a UE to operate (e.g., for wireless transmission and / or reception) with a bandwidth narrower than the full bandwidth of the cell. In some examples, a BWP may allow UEs with different bandwidth capabilities to operate in a cell with a smaller instantaneous bandwidth relative to the full bandwidth configured for the cell. In some examples, the UE may not be required to transmit and / or receive outside the BWP assigned to the UE (also known as the UE's active BWP).

[0049] In some examples, for paired spectrum, the serving cell can configure up to four DL BWPs and four UL BWPs. For unpaired spectrum, the serving cell can configure up to four DL / UL BWP pairs. For supplementary uplink (SUL), the serving cell can configure up to 4 UL BWPs.

[0050] In some examples, for FDD, the serving cell may support separate BWP configuration sets for DL ​​and UL for each component carrier (CC). DL and UL BWP may be configured separately and independently for each UE-specific serving cell. The parameter set for DL ​​BWP configuration may apply to PDCCH and PDSCH. The parameter set for UL BWP configuration may apply to PUCCH and PUSCH.

[0051] In some examples, for TDD, the serving cell may support a joint set of BWP configurations for DL ​​and UL per CC. The DL and UL BWPs may be jointly configured as a pair, with the restriction that the DL / UL BWP pair shares the same center frequency, but may have different bandwidths for each UE-specific serving cell for the UE. The parameter set for the DL / UL BWP configuration may be applicable to PDCCH, PDSCH, PUCCH, and PUSCH. For a UE, if different active DL and UL BWPs are configured, it is expected that the UE will not re-tune the center frequency of the channel bandwidth between DL and UL. Supporting the ability to switch BWPs between multiple BWPs is memory intensive as the entire RRC configuration set is required for each BWP.

[0052] In a 5G NR network, when a UE is to perform channel state information (CSI) measurements, it may be desirable for the UE to perform CSI measurements only within its active DL BWP. Otherwise, in order to perform CSI measurements outside its active BWP (also referred to as the current active BWP), the UE may need to switch from its current active BWP to a different BWP (e.g., a different BWP that does not overlap with the current active BWP). In addition, as described below, the UE may require measurement gaps (MGs) to identify and measure at least one of an intra-frequency cell, an inter-frequency cell, or an inter-RAT E-UTRAN cell.

[0053] The measurement gap (MG) may be an RRC configured with a measurement gap length (MGL), a measurement gap repetition period (MGRP), and a measurement gap timing advance (MGTA). In some examples, the measurement gap length (MGL) may be in the range of 1.5 milliseconds (ms) to 6.0 ms, depending on the frequency range. In some examples, the measurement gap repetition period (MGRP) may be in the range of 20 ms to 160 ms. In some examples, the measurement gap timing advance (MGTA) may be 0 ms, 0.25 ms, or 0.5 ms. During the measurement gap (MG), the UE may not be expected to transmit or receive within the active BWP. In some examples, the measurement gap (MG) described above may be primarily used for L3-based cell reselection or carrier reselection.

[0054] Radio Resource Control (RRC) for Channel State Information (CSI) reporting and CSI resource frequency occupancy will now be discussed. A UE may receive a CSI reporting configuration that may define a CSI reporting band as a subset of a subband of a bandwidth part (BWP). A CSI reporting band may indicate a contiguous or non-contiguous subset of subbands in a BWP for which CSI is to be reported. The CSI reporting band may be indicated using a bitmap, such as a bit string, where each bit in the bit string represents a subband. For example, the rightmost bit in the bit string may represent the lowest subband in the BWP. The number of subbands represented by the bit string (e.g., the length of the bit string) may be set based on a value or item included in a specific field (also referred to as a selection field) of the CSI reporting configuration. For example, "subbands3" may be included in the selection field to indicate three subbands, which may set the length of the bit string to three bits. As another example, "subbands4" may be included in the selection field to indicate four subbands, which may set the length of the bit string to four bits. If there are less than 24 PRBs (no subbands), the selection field may be omitted (or may not include any value), otherwise present. In some examples, the number of subbands may be from 3 (e.g., 24 PRBs, subband size 8) to 18 (e.g., 72 PRBs, subband size 4).

[0055] The UE may receive a CSI resource configuration that may indicate the CSI frequency occupancy within a BWP. In some examples, the CSI frequency occupancy may be indicated by a starting resource block value (also referred to as a startingRB value) and a number of resource blocks value (also referred to as an nrofRB value). The starting resource block value indicates the physical resource block (PRB) at which the CSI resource starts relative to common resource block #0 (CRB#0) on the common resource block grid. In some examples, only multiples of 4 may be allowed (e.g., 0, 4, ...). The number of resource blocks value indicates the number of PRBs spanned by the CSI resource. In some examples, only multiples of 4 may be allowed. The minimum configurable number may be the minimum of 24 and the width of the associated BWP. If the configured value is greater than the width of the corresponding BWP, the UE may assume that the actual CSI-RS bandwidth is equal to the width of the BWP.

[0056] In some 5G NR networks, due to the limited computational memory of the reduced complexity UE, the reduced complexity UE may only support a single BWP. In these 5G NR networks, when a base station (e.g., a gNB) wants the reduced complexity UE to measure CSI resources of frequency domain (FD) resources outside its currently active BWP (for L3 measurements or for L1 scheduling purposes), the base station (e.g., the gNB) may need to first reconfigure the currently active BWP of the reduced complexity UE. However, since such reconfiguration of the current BWP typically requires RRC reconfiguration, a relatively long configuration delay will be introduced, thereby degrading the performance of the low complexity UE. In addition, such RRC reconfiguration of the current BWP may delay the transmission of accurate CSI reports, which may further limit the PDSCH performance in the new frequency domain (FD) resources. Aspects described herein introduce dynamic channel state information (CSI) measurement gaps that overcome the difficulties previously described associated with UE measurements of CSI resources outside the UE's currently active BWP.

[0057] Dynamic Channel State Information (CSI) Measurement Gap

[0058] In some aspects of the present disclosure, and as referred to below Figure 4 and Figure 5 Described in more detail, the UE may be configured by RRC with a dynamic CSI measurement gap (d-CSI-MG) for CSI measurements outside of its currently active BWP. In some examples, the dynamic CSI-measurement gap (d-CSI-MG) may include a front-end d-CSI-MG length (fd-CSI-MGL) and a back-end d-CSI-MG length (bd-CSI-MGL). The fd-CSI-MGL may define the time domain (TD) duration of the d-CSI-MG before the first symbol of the first CSI resource. The bd-CSI-MGL may define the time domain (TD) duration of the d-CSI-MG after the last symbol of the second CSI resource. In some aspects of the present disclosure, the first CSI resource may be the earliest CSI resource associated with the first CSI report triggered by the first DCI, and the second CSI resource may be the latest CSI resource also associated with the first CSI report triggered by the first DCI. In some examples, fd-CSI-MGL and bd-CSI-MGL may be configured by the same value. In some aspects of the present disclosure, the start of a dynamic CSI-measurement gap (d-CSI-MG) may be defined by the first symbol of fd-CSI-MGL, and the end of the dynamic CSI-measurement gap (d-CSI-MG) may be defined by the last symbol of bd-CSI-MGL.

[0059] In some aspects of the present disclosure, it is not expected that the UE transmits and / or receives relative to its active BWP during a dynamic CSI-measurement gap (d-CSI-MG). In one example, if the 5G NR network implements a time division duplex (TDD) scheme, transmission and reception of the UE may not be expected. In another example, if the 5G NR network implements a frequency division duplex (FDD) scheme, only reception of the UE is not expected, while transmission of the UE may be expected. In another example, if FDD, transmission and reception of the UE may not be expected. In some aspects, if the UE is not expected to receive and / or transmit in the active BWP due to CSI-MG, rate matching and / or discarding of the corresponding DL / UL signals may be performed. The UE may be configured by the RRC as to whether the UE is to perform rate matching and / or discarding.

[0060] Frequency domain (FD) offset of bandwidth part (BWP) of dynamic channel state information (CSI) measurement gap

[0061] Figure 4 4 is a diagram illustrating an example bandwidth part (BWP) frequency domain (FD) offset for a dynamic channel state information measurement gap (CSI-MG) in accordance with various aspects of the present disclosure. Figure 4 As shown, a cell in a 5G NR network having a carrier bandwidth 402 (also referred to as a component carrier bandwidth 402) may configure an active BWP 404 (also referred to as a current active BWP 404) for a UE. For example, the active BWP 404 may have a frequency range 406 that is less than the full carrier bandwidth 402. Figure 4 As shown, the 5G NR network can configure channel state information (CSI) measurement resources 408, 410, 412, 414 within the carrier bandwidth 402. In some examples, CSI resources 408 and 412 can be aperiodic channel state information (AP-CSI) resources, and CSI resources 410 and 414 can be aperiodic channel state information interference measurement (AP-CSI-IM) resources.

[0062] In some examples, CSI resources 408 and 410 may be CSI resources linked to a CSI reporting configuration triggered by first DCI 448. Figure 4 , portions of CSI resources 408, 410 within the currently active BWP 404 that may be indicated to the UE via the first DCI 448 are shown in the first CSI resource region 416. In some examples, and as Figure 4As shown, the first DCI 448 may also indicate one or more sub-bands (e.g., sub-bands 418, 420, 422, 424 within the first CSI resource region 416) for which the UE may report its channel state information (CSI). For example, as previously described, the one or more sub-bands may be indicated to the UE in the CSI reporting bands defined in the CSI reporting setting configuration (e.g., via RRC signaling).

[0063] In some aspects, the UE may be configured with one or more BWP frequency domain (FD) offset options by RRC. Each BWP FD offset option may include a frequency domain FD offset value relative to the currently active BWP of the UE. The FD offset value may be a plurality of resource block groups (RBGs), wherein the size of each RBG is the same as the RBG of the currently active BWP of the UE. In some aspects, the offset BWP may maintain the same parameters (e.g., RRC configuration) as the currently active BWP. Each BWP FD offset option may correspond to a unique virtual bandwidth part identifier (BWP-ID). For example, each BWP FD offset option and the currently active BWP may correspond to different BWP-IDs.

[0064] refer to Figure 4 For example, the UE may receive a second DCI 450 (e.g., from a cell in a 5G NR network) that triggers an aperiodic channel state information (AP-CSI) report. Figure 4 In the second DCI 450, the CSI resources 412, 414 may be linked to the CSI report configuration triggered by the second DCI 450. For example, the second DCI 450 may include information indicating a BWP FD offset option (e.g., a BWP frequency domain FD offset 426) relative to the currently active BWP 404. In some embodiments, the BWP FD offset option may be indicated by a dedicated indicator in the second DCI 450. In other embodiments, the BWP FD offset option may be indicated with a BWP-ID in the second DCI 450. In aspects described herein, a BWP that has been offset relative to the currently active BWP of the UE based on a BWP FD offset (e.g., a BWP FD offset 426) may be referred to as an offset BWP.

[0065] exist Figure 4 , portions of channel state information (CSI) measurement resources 412 , 414 within the offset BWP are shown in the second CSI resource region 428 . Figure 4 One or more sub-bands (e.g., sub-bands 434, 436, 438, 440 within the second CSI resource region 428) for which the UE may report its channel state information (CSI) are shown. For example, as previously described, the one or more sub-bands may be indicated to the UE in the CSI reporting bands defined in the CSI reporting setting configuration.

[0066] In some aspects of the present disclosure, a UE may identify a dynamic channel state information measurement gap (CSI-MG) while taking into account the frequency domain occupancy of the CSI measurement resources and other previously described criteria, such as d-CSI-MG, fd-CSI-MGL, and / or bd-CSI-MGL. Figure 4 For example, the UE may identify a dynamic channel state information measurement gap (CSI-MG) 442 while taking into account CSI resources 412, 414 as well as fd-CSI-MGL 444 and bd-CSI-MGL 446. Figure 4 4, portion 430 represents a front-end dynamic CSI measurement gap and portion 432 represents a back-end dynamic CSI measurement gap. Portion 430 may be used as a first time domain (TD) delay that allows the UE to tune its antenna for communication on the offset BWP, and portion 432 may be used as a second TD delay that allows the UE to tune its antenna for communication on the active BWP 404.

[0067] In some aspects of the present disclosure, the UE may consider any CSI resources (e.g., including non-zero power channel state information reference signal (NZP-CSI-RS) resources and channel state information interference measurement (CSI-IM) resources) linked to any CSI reporting configuration triggered by a DCI to be associated with the offset BWP indicated in the DCI instead of the current active BWP. In some aspects of the present disclosure, the serving base station (e.g., gNB) may be responsible for ensuring that the frequency domain resource allocation (FDRA) (e.g., the CSI frequency occupancy described previously) of such CSI resources is within the offset BWP (e.g., within the second CSI resource region 428).

[0068] In some examples, the UE may determine the reporting subband configuration of the currently active BWP (e.g., based on the CSI reporting bands described previously), and may use the same reporting subband configuration for the offset BWP application. In some examples, the UE may identify the reporting subband configuration of the offset BWP based on the CSI reporting band configuration dedicated to the dynamic CSI-MG. In these examples, the reporting subband of the offset BWP may be different from the reporting subband configuration of the currently active BWP.

[0069] Implicit indication of measurement frequency domain (FD) resources

[0070] As reference Figure 5As described, in some aspects of the present disclosure, a UE in a 5G NR network may be triggered with a dynamic CSI report DCI associated with CSI resources (e.g., including non-zero power channel state information reference signal (NZP-CSI-RS) resources and channel state information interference measurement (CSI-IM) resources), wherein the frequency domain resource allocation (FDRA) of the CSI resources (e.g., the starting resource block value, the number of resource blocks value, and the CSI frequency occupancy described previously) identifies frequency domain resources outside the current active BWP of the UE. The UE may measure these CSI resources even though the identified frequency domain (FD) resources are outside the current active BWP of the UE. The UE may determine the FD range to be measured based on the starting resource block value, the number of resource blocks value, and the CSI frequency occupancy of the CSI resources.

[0071] Figure 5 5 is a diagram illustrating an implicit indication of a measured frequency domain (FD) resource in accordance with various aspects of the present disclosure. Figure 5 As shown, a cell with a carrier bandwidth 502 in a 5G NR network can configure an active BWP 504 (also referred to as a current active BWP 504) for a UE. Figure 5 As shown, the 5G NR network can configure CSI resources 508, 510 within the carrier bandwidth 502. In some examples, the CSI resource 508 can be an aperiodic channel state information (AP-CSI) resource, and the channel state information (CSI) measurement resource 510 can be an aperiodic channel state information interference measurement (AP-CSI-IM) resource.

[0072] In some examples, the CSI resources 508, 510 may be CSI resources linked to a CSI reporting configuration triggered by the first DCI 548. Figure 5 , portions of the CSI resources 508 , 510 within the currently active BWP 504 are shown in a first CSI resource region 516 . Figure 5 One or more sub-bands (e.g., sub-bands 518, 520, 522, 524 within the first CSI resource region 516) for which the UE may report its channel state information (CSI) are shown. For example, as previously described, the one or more sub-bands may be indicated to the UE in the CSI reporting bands defined in the CSI reporting settings configuration.

[0073] refer to Figure 5 For example, the UE may receive a second DCI 550 (e.g., from a cell in a 5G NR network) that triggers an aperiodic channel state information (AP-CSI) report. Figure 5504, the CSI resources 512, 514 may be linked to the CSI reporting configuration triggered by the second DCI 550. Therefore, the UE may measure these CSI resources 512, 514 even though the identified frequency domain (FD) resources are outside the UE's currently active BWP 504. For example, the UE may determine the frequency domain (FD) range 526 to be measured based on the starting resource block value, the number of resource blocks value, and the CSI frequency occupancy of the CSI resources.

[0074] exist Figure 5 , channel state information (CSI) measurement resources 512 , 514 configured outside of the currently active BWP 504 of the UE are shown in a second CSI resource region 528 . Figure 5 One or more sub-bands (e.g., sub-bands 536, 538, 540 within the second CSI resource region 528) for which the UE may report its channel state information (CSI) are shown. For example, as previously described, the one or more sub-bands may be indicated to the UE in the CSI reporting bands defined in the CSI reporting settings configuration.

[0075] In some aspects of the present disclosure, a UE may identify a dynamic channel state information measurement gap (CSI-MG) while taking into account CSI measurement resources and other previously described standards, such as d-CSI-MG, fd-CSI-MGL, bd-CSI-MGL. Figure 5 For example, the UE may identify a dynamic channel state information measurement gap (CSI-MG) 542 while taking into account CSI resources 512, 514 as well as fd-CSI-MGL 544 and bd-CSI-MGL 546. Figure 5 , portion 530 represents a front-end dynamic CSI measurement gap, and portion 532 represents a back-end dynamic CSI measurement gap. Portion 530 may be used as a first time domain (TD) delay that allows the UE to tune its antenna for communication on the FD range 526, and portion 532 may be used as a second TD delay that allows the UE to tune its antenna for communication on the active BWP 504.

[0076] In some aspects of the present disclosure, it may not be desirable for a UE to measure other activated and / or triggered CSI resources including a frequency domain resource allocation (FDRA) that overlaps with a currently active BWP. Therefore, in some examples, it may not be desirable for a UE to send CSI reports associated with these CSI resources.

[0077] UE Capabilities

[0078] In some examples, a UE in a 5G NR network may report one or more of the following capabilities of the UE: a) whether dynamic CSI-MG is supported b) time domain RF retuning capability (e.g., the minimum supported value of fd-CSI-MGL and the minimum supported value of fd-CSI-MGL) c) frequency domain (FD) RF (RF) retuning capability. In some examples, the minimum supported value of fd-CSI-MGL and the minimum supported value of bd-CSI-MGL may be reported by the same value or different values. In some examples, the frequency domain RF retuning capability may include the maximum frequency domain offset value supported by the BWP.

[0079] Periodic channel state information (CSI) measurement resources and semi-persistent channel state information (SPS-CSI) resources

[0080] In some aspects of the present disclosure, periodic channel state information (CSI) measurement resources and semi-persistent channel state information (SPS-CSI) resources may be linked to a CSI report configuration triggered by a non-periodic CSI. The CSI report configuration may include a BWP frequency domain (FD) offset. After receiving a triggering DCI, the UE may measure periodic channel state information (CSI) measurement resources and / or semi-persistent channel state information (SPS-CSI) resources, provided that the frequency domain resources of the periodic channel state information (CSI) measurement resources and / or semi-persistent channel state information (SPS-CSI) resources are allocated outside the current active BWP. In some examples, the UE may not be aware of the existence of a BWP FD offset before receiving a triggering DCI including a BWP FD offset command. Therefore, the UE may measure the CSI resources received after the triggering DCI.

[0081] Figure 6 600 is a flow chart of a wireless communication method. The method may be performed by a UE (e.g., UE 104; device 702 / 702'; processing system 814, which may include memory 360 and may be the entire UE 104 or a component of UE 104, such as TX processor 368, RX processor 356 and / or controller / processor 359). Figure 6 In the figure, a box shown with a dotted line indicates an optional box.

[0082] At 602, a UE operates within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of the total bandwidth of the component carrier. Figure 4 , the active BWP may be the active BWP 404. In other aspects, reference Figure 5 , the active BWP may be the active BWP 504 .

[0083] At 604, the UE reports one or more capabilities of the user equipment, the one or more capabilities including at least information indicating whether a dynamic channel state information (CSI) measurement gap is supported, a time domain radio frequency retuning capability including a minimum supported value of a first time domain (TD) duration and a second time domain (TD) duration, wherein the values ​​of the first and second TD durations may be reported as the same value, or a frequency domain (FD) radio frequency retuning capability.

[0084] At 606, the UE receives an indication of a first time domain (TD) duration (e.g., fd-CSI-MGL 444 or fd-CSI-MGL 544) and a second time domain (TD) duration (e.g., bd-CSI-MGL 446 or bd-CSI-MGL 546), wherein the first and second time domain (TD) durations are included in a dynamic channel state information (CSI) measurement gap (e.g., CSI-MGL 442, 542). In some examples, the first time domain (TD) duration starts before a first symbol of a first channel state information (CSI) measurement resource in the channel state information (CSI) measurement resources, and the second time domain (TD) duration starts after a last symbol of a second channel state information (CSI) measurement resource in the channel state information (CSI) measurement resources.

[0085] At 608, the UE determines a configuration of a dynamic channel state information (CSI) measurement gap that includes a channel state information (CSI) measurement resource within the total bandwidth of the component carrier and having a frequency domain occupancy outside the active BWP.

[0086] In some aspects of the present disclosure, a UE determines a configuration of a dynamic channel state information (CSI) measurement gap by receiving one or more bandwidth part (BWP) frequency domain (FD) offset options (e.g., BWP frequency domain (FD) offset 426), each bandwidth part (BWP) frequency domain (FD) offset option including a frequency domain (FD) offset value relative to an active bandwidth part (BWP), receiving downlink control information (DCI) indicating one of the one or more bandwidth part (BWP) frequency domain (FD) offset options, wherein the downlink control information (DCI) triggers a channel state information (CSI) report on one or more of channel state information (CSI) measurement resources, and determining an offset bandwidth part (BWP) based on one of the one or more bandwidth part (BWP) frequency domain (FD) offset options, wherein the offset bandwidth part (BWP) overlaps with a frequency domain occupancy of the one or more channel state information (CSI) measurement resources, and wherein the offset bandwidth part (BWP) and the active bandwidth part (BWP) do not overlap. In some examples, the UE measures the CSI measurement resource by considering that the CSI measurement resource is associated with the offset BWP.

[0087] In some examples, the frequency domain (FD) offset value indicates the number of resource block groups (RBGs). In some examples, each of the number of resource block groups (RBGs) indicated by the frequency domain (FD) offset value has the same size as each resource block group (RBG) in the active bandwidth part (BWP). In some examples, the offset bandwidth part (BWP) maintains the same parameters as the active bandwidth part (BWP). The UE also receives downlink control information (DCI) indicating one of the one or more bandwidth part (BWP) frequency domain (FD) offset options, which is configured to trigger a channel state information (CSI) report on one or more channel state information (CSI) measurement resources. In some examples, one or more of the channel state information (CSI) measurement resources include non-zero power channel state information reference signal (NZP-CSI-RS) resources or channel state information interference measurement (CSI-IM) resources. Then, the UE determines the offset bandwidth part (BWP) based on one of the one or more bandwidth part (BWP) frequency domain (FD) offset options. The offset bandwidth part (BWP) overlaps with the frequency domain occupancy of one or more channel state information (CSI) measurement resources. The offset bandwidth part (BWP) and the active bandwidth part (BWP) are non-overlapping.

[0088] In other aspects of the present disclosure, a UE receives downlink control information (DCI) triggering a channel state information (CSI) report on one or more of the channel state information (CSI) measurement resources, wherein a frequency domain occupancy of each CSI measurement resource is determined according to a starting physical resource block (PRB) value and a PRB number value configured for each CSI measurement resource, and wherein the determined frequency domain occupancy of each CSI measurement resource does not overlap with an active BWP, and wherein a dynamic channel state information (CSI) measurement gap is determined taking into account at least the frequency domain occupancy of the CSI measurement resource. Measurement of the channel state information (CSI) measurement resource may be performed even though the frequency domain occupancy of the CSI measurement resource does not overlap with the active BWP.

[0089] In some examples, frequency domain occupancy can identify frequency domain resources outside of the active bandwidth portion (e.g., Figure 5 The frequency domain (FD) range in 526).

[0090] At 610, the UE measures channel state information (CSI) measurement resources included in a dynamic channel state information (CSI) measurement gap (e.g., in the second CSI resource region 428 or in the second CSI resource region 528). In some examples, the UE measures the channel state information (CSI) measurement resources included in the dynamic channel state information (CSI) measurement gap by determining a subband configuration indicating one or more subbands for measuring the channel state information (CSI) measurement resources within the dynamic channel state information (CSI) measurement gap, and measuring the channel state information (CSI) measurement resources included in the dynamic channel state information (CSI) measurement gap based on the one or more subbands. In some examples, the UE can determine the subband configuration by identifying a first subband configuration associated with an active BWP or identifying a second subband configuration associated with the dynamic channel state information (CSI) measurement gap.

[0091] In some aspects of the present disclosure, a channel state information (CSI) measurement resource included in a dynamic channel state information (CSI) measurement gap is a periodic channel state information (CSI) measurement resource or a semi-persistent channel state information (SPS-CSI) resource, and wherein measuring the channel state information (CSI) measurement resource is triggered by downlink control information.

[0092] At 612, the UE refrains from performing at least transmission or reception in an active bandwidth part (BWP) during a dynamic channel state information (CSI) measurement gap.

[0093] At 614, the UE refrains from measuring channel state information (CSI) measurement resources having frequency domain occupancy within an active bandwidth part (BWP) during a dynamic channel state information (CSI) measurement gap.

[0094] At 616, during a dynamic channel state information (CSI) measurement gap, the UE performs at least a rate matching operation or a dropping operation for a downlink signal or an uplink signal scheduled to be transmitted or received in an active BWP and includes a TDRA overlapping with the dynamic CSI measurement gap.

[0095] Finally, at 618, the UE sends a channel state information (CSI) report based on the measured channel state information (CSI) measurement resource.

[0096] Figure 7 700 is a conceptual data flow diagram illustrating data flow between different parts / components in an example apparatus 702. The apparatus may be a UE. The apparatus includes an active bandwidth part (BWP) operating component 704 that operates the UE within an active bandwidth part (BWP) of a component carrier. The active BWP is a portion of a total bandwidth of the component carrier. The apparatus also includes a receiving component 706 that receives control information, such as a DCI, an indication of a first time domain (TD) duration and a second time domain (TD) duration, and receives CSI resources (e.g., at least one channel state information reference signal (CSI-RS)). The first and second time domain (TD) durations are included in a dynamic channel state information (CSI) measurement gap. The apparatus also includes a sending component 708 that sends a channel state information (CSI) report based on the measured channel state information (CSI) measurement resources.

[0097] The apparatus also includes a capability reporting component 710 that reports one or more capabilities of the UE. The apparatus also includes a channel state information measurement gap (CSI-MG) determination component 714 that determines a configuration of a dynamic channel state information (CSI) measurement gap. The dynamic channel state information (CSI) measurement gap includes channel state information (CSI) measurement resources within the total bandwidth of the component carrier and outside the active BWP. The apparatus also includes a channel state information measurement component 716 that measures the channel state information (CSI) measurement resources included in the dynamic channel state information (CSI) measurement gap.

[0098] The apparatus also includes a suppression component 718 that suppresses at least transmission or reception in an active bandwidth part (BWP) during a dynamic channel state information (CSI) measurement gap, and suppresses measuring a channel state information (CSI) measurement resource within the active bandwidth part (BWP) during a dynamic channel state information (CSI) measurement gap. For example, the suppression component 718 can output a suppression command to implement the suppression operation described previously. The apparatus also includes an operation execution component 720 that performs at least a rate matching operation or a discarding operation on a downlink signal or an uplink signal during a dynamic channel state information (CSI) measurement gap.

[0099] The device may include performing the above Figure 6 The flowchart of each block of the algorithm is an additional component. Therefore, the aforementioned Figure 6 Each block in the flowchart of can be performed by a component, and the device can include one or more of these components. These components can be one or more hardware components, specifically configured to perform the process / algorithm, the process / algorithm is implemented by a processor configured to perform the process / algorithm, stored in a computer readable medium for processor implementation, or some combination thereof.

[0100] Figure 8 800 is a diagram illustrating an example of a hardware implementation of an apparatus 702′ employing a processing system 814. The processing system 814 may be implemented with a bus architecture, which is generally represented by a bus 824. The bus 824 may include any number of interconnecting buses and bridges, depending on the specific application and overall design constraints of the processing system 814. The bus 824 connects together various circuits including one or more processors and / or hardware components represented by the processor 804, components 704, 706, 708, 710, 712, 714, 716, 718, 720, and computer readable medium / memory 806. The bus 824 may also connect various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and will not be described further.

[0101] The processing system 814 can be coupled to the transceiver 810. The transceiver 810 is coupled to one or more antennas 820. The transceiver 810 provides components for communicating with various other devices through a transmission medium. The transceiver 810 receives signals from the one or more antennas 820, extracts information from the received signals, and provides the extracted information to the processing system 814, specifically the receiving component 708. In addition, the transceiver 810 receives information from the processing system 814, specifically from the transmitting component 706, and based on the received information, generates a signal to be applied to the one or more antennas 820. The processing system 814 includes a processor 804 coupled to a computer-readable medium / memory 806. The processor 804 is responsible for general processing, including executing software stored on the computer-readable medium / memory 806. When executed by the processor 804, the software causes the processing system 814 to perform the various functions described above for any particular device. The computer-readable medium / memory 806 can also be used to store data manipulated by the processor 804 when executing the software. The processing system 814 also includes at least one of the components 704, 706, 708, 710, 712, 714, 716, 718, 720. These components may be software components running in the processor 804, resident / stored in the computer-readable medium / memory 806, one or more hardware components coupled to the processor 804, or some combination thereof. The processing system 814 may be a component of the UE 350 and may include the memory 360 and / or at least one of the TX processor 368, the RX processor 356, and the controller / processor 359. Alternatively, the processing system 814 may be the entire UE (e.g., see Figure 3 of 350).

[0102] In one configuration, an apparatus 702 / 702′ for wireless communication includes means for operating within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of a total bandwidth of the component carrier, means for determining a configuration of a dynamic channel state information (CSI) measurement gap, the dynamic channel state information (CSI) measurement gap including channel state information (CSI) measurement resources having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP, means for measuring the channel state information (CSI) measurement resources included in the dynamic channel state information (CSI) measurement gap, means for sending a channel state information (CSI) report based on the measured channel state information (CSI) measurement resources, and means for receiving a first time domain (T) measurement gap. D) duration and an indication of a second time domain (TD) duration, means for refraining from performing at least transmission or reception in an active bandwidth part (BWP) during a dynamic channel state information (CSI) measurement gap, means for refraining from measuring a channel state information (CSI) measurement resource having frequency domain occupancy within the active bandwidth part (BWP) during a dynamic channel state information (CSI) measurement gap, means for performing at least a rate matching operation or a discarding operation for a downlink signal or an uplink signal scheduled to be transmitted or received in the active BWP during a dynamic channel state information (CSI) measurement gap and including a TDRA overlapping with the dynamic CSI measurement gap, and / or means for reporting one or more capabilities of a user equipment. The aforementioned means may be one or more of the aforementioned components of the device 702 and / or the processing system 814 of the device 702′ configured to perform the functions described by the aforementioned means. As described above, the processing system 814 may include the TX processor 368, the RX processor 356, and the controller / processor 359. Thus, in one configuration, the aforementioned components may be the TX processor 368, the RX processor 356, and the controller / processor 359 configured to perform the functions recited by the aforementioned components.

[0103] Aspects described herein introduce a dynamic channel state information (CSI) measurement gap (CSI-MG) that enables a UE to efficiently perform CSI measurements outside its active bandwidth part (BWP) without requiring RRC reconfiguration to switch to a different bandwidth part (BWP). Aspects described herein can reduce the previously discussed delay caused by the reconfiguration of the current BWP, and thus can prevent degradation of the performance of low-complexity UEs.

[0104] It should be understood that the specific order or hierarchy of blocks in the disclosed process / flowchart is an illustration of an example method. Based on design preferences, it is understood that the specific order or hierarchy of blocks in the process / flowchart can be rearranged. In addition, some blocks can 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.

[0105] The preceding description is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but are given the full scope consistent with the language of the claims, wherein the reference to an element in the singular is not intended to mean "one and only one", unless specifically so stated, but "one or more". The term "exemplary" is used herein to mean "used as an example, instance or illustration". Any aspect described herein as "exemplary" is not necessarily interpreted as being preferred or superior to other aspects. Unless otherwise specifically stated, the term "some" refers to one or more. Combinations such as "at least one of A, B or C", "one or more of A, B or C", "at least one of A, B and C", "one or more of A, B and C" and "A, B, C or any combination thereof" include any combination of A, B and / or C, and may include multiples of A, multiples of B or multiples of C. Specifically, combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, wherein any such combination may include one or more members of A, B, or C. All structural and functional equivalents of the elements throughout the various aspects described in the present disclosure that are known or later known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be exclusively for the public, regardless of whether the disclosure is explicitly recited in the claims. The words "module," "mechanism," "element," "device," and the like are not intended to replace the word "component." Therefore, any claim element should not be interpreted as a part plus function unless the element is explicitly recited using the term "component for."

Claims

1. A method of wireless communication, comprising: operating within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of the total bandwidth of the component carrier; Receiving an indication of a first time domain TD duration and a second time domain TD duration, wherein the first and second TD durations are included in a dynamic channel state information CSI measurement gap; determining a configuration of the dynamic CSI measurement gap, the dynamic CSI measurement gap comprising CSI measurement resources having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP; measuring the CSI measurement resource included in the dynamic CSI measurement gap; sending a CSI report based on the measured CSI measurement resource, and wherein, The first TD duration starts before a first symbol of a first CSI measurement resource among the CSI measurement resources; and The second TD duration starts after a last symbol of a second CSI measurement resource in the CSI measurement resources.

2. The method according to claim 1, further comprising: At least transmission or reception is refrained from being performed in the active BWP during the dynamic CSI measurement gap.

3. The method according to claim 1, further comprising: During the dynamic CSI measurement gap, measuring CSI measurement resources having frequency domain occupancy within the active BWP is suppressed.

4. The method according to claim 1, further comprising: During the dynamic CSI measurement gap, at least a rate matching operation or a discarding operation is performed on a downlink signal or an uplink signal scheduled to be transmitted or received in the active BWP, and includes a TDRA overlapping with the dynamic CSI measurement gap.

5. The method according to claim 1, wherein: Determining the configuration of the dynamic CSI measurement gap includes: receiving one or more BWP frequency domain FD offset options, each of the BWP FD offset options comprising an FD offset value relative to the active BWP; receiving downlink control information (DCI) indicating one of the one or more BWP FD offset options, wherein the DCI triggers CSI reporting on one or more of the CSI measurement resources; and An offset BWP is determined based on one of the one or more BWP FD offset options, wherein the offset BWP overlaps with the frequency domain occupancy of the one or more CSI measurement resources, and wherein the offset BWP and the active BWP do not overlap.

6. The method according to claim 5, wherein: Measuring the CSI measurement resource includes: The CSI measurement resource is measured by considering that the CSI measurement resource is associated with the offset BWP.

7. The method according to claim 5, wherein: Each BWP FD offset option includes a BWP identifier BWP-ID, and the DCI uses the BWP-ID to indicate one of the one or more BWP FD offset options, and wherein the BWP-ID used in the DCI indication is an existing BWP-ID configured in the DCI for dynamic BWP switching indication, or is provided separately in a new field in the DCI.

8. The method according to claim 5, wherein: One or more of the CSI measurement resources include non-zero power reference signal NZP-CSI-RS resources or interference measurement CSI-IM resources.

9. The method according to claim 5, wherein: The FD offset value indicates the number of resource block groups RBGs.

10. The method according to claim 9, wherein: Each of the number of RBGs indicated by the FD offset value has the same size as each RBG in the active BWP.

11. The method according to claim 9, wherein: The offset BWP maintains the same parameters as the active BWP.

12. The method according to claim 1, wherein: Measuring the CSI measurement resource included in the dynamic CSI measurement gap includes: determining a subband configuration indicating one or more subbands for measuring the CSI measurement resource within the dynamic CSI measurement gap; and The CSI measurement resources included in the dynamic CSI measurement gap are measured based on the one or more sub-frequency bands.

13. The method according to claim 12, wherein: Determining the sub-band configuration includes: identifying a first sub-band configuration associated with the active BWP; or A second sub-band configuration associated with the dynamic CSI measurement gap is identified.

14. The method according to claim 1, wherein: Determining the configuration of the dynamic CSI measurement gap includes: receiving downlink control information DCI triggering a CSI report on one or more of the CSI measurement resources, wherein The frequency domain occupancy of each of the CSI measurement resources is determined according to a starting physical resource block PRB value and a PRB quantity value configured for each of the CSI measurement resources, and wherein the determined frequency domain occupancy of each of the CSI measurement resources does not overlap with the active BWP, and wherein The dynamic CSI measurement gap is determined by at least considering the frequency domain occupancy of the CSI measurement resource.

15. The method according to claim 14, wherein: Although the frequency domain occupancy of the CSI measurement resource does not overlap with the active BWP, measurement of the CSI measurement resource is performed.

16. The method according to claim 1, further comprising: Report one or more capabilities of the user equipment, the one or more capabilities including at least information indicating whether the dynamic CSI measurement gap is supported, time domain RF retuning capability including minimum supported values ​​of a first TD duration and a second TD duration, wherein the values ​​of the first and second TD durations are reported as the same value, or frequency domain FD RF retuning capability.

17. The method according to claim 13, wherein: The CSI measurement resource included in the dynamic CSI measurement gap is a periodic CSI measurement resource or a semi-persistent SPS-CSI resource, and wherein measuring the CSI measurement resource is triggered by downlink control information.

18. An apparatus for wireless communication, comprising: Memory; as well as at least one processor coupled to the memory and configured to: operating within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of the total bandwidth of the component carrier; Receiving an indication of a first time domain TD duration and a second time domain TD duration, wherein the first and second TD durations are included in a dynamic channel state information CSI measurement gap; determining a configuration of the dynamic CSI measurement gap, the dynamic CSI measurement gap comprising CSI measurement resources having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP; measuring the CSI measurement resource included in the dynamic CSI measurement gap; Sending a CSI report based on the measured CSI measurement resource; and wherein, The first TD duration starts before a first symbol of a first CSI measurement resource among the CSI measurement resources; and The second TD duration starts after a last symbol of a second CSI measurement resource in the CSI measurement resources.

19. The device according to claim 18, wherein: The at least one processor is further configured to: At least transmission or reception is refrained from being performed in the active BWP during the dynamic CSI measurement gap.

20. The device according to claim 18, wherein The at least one processor is further configured to: During the dynamic CSI measurement gap, measuring CSI measurement resources having frequency domain occupancy within the active BWP is suppressed.

21. The device according to claim 18, wherein The at least one processor is further configured to: During the dynamic CSI measurement gap, at least a rate matching operation or a discarding operation is performed on a downlink signal or an uplink signal scheduled to be transmitted or received in the active BWP, and includes a TDRA overlapping with the dynamic CSI measurement gap.

22. The device according to claim 18, wherein The at least one processor is configured to determine the configuration of a dynamic CSI measurement gap and is further configured to: receiving one or more BWP frequency domain FD offset options, each of the BWP FD offset options comprising an FD offset value relative to the active BWP; receiving downlink control information (DCI) indicating one of the one or more BWP FD offset options, wherein the DCI triggers CSI reporting on one or more of the CSI measurement resources; and An offset BWP is determined based on one of the one or more BWP FD offset options, wherein the offset BWP overlaps with the frequency domain occupancy of the one or more CSI measurement resources, and wherein the offset BWP and the active BWP do not overlap.

23. The device according to claim 22, wherein: The at least one processor configured to measure the CSI measurement resource is further configured to: The CSI measurement resource is measured by considering that the CSI measurement resource is associated with the offset BWP.

24. The device according to claim 22, wherein: Each BWP FD offset option includes a BWP identifier BWP-ID, and the DCI uses the BWP-ID to indicate one of the one or more BWP FD offset options, and wherein the BWP-ID used in the DCI indication is an existing BWP-ID configured in the DCI for dynamic BWP switching indication, or is provided separately in a new field in the DCI.

25. The device according to claim 22, wherein: One or more of the CSI measurement resources include non-zero power reference signal NZP-CSI-RS resources or interference measurement CSI-IM resources.

26. The device according to claim 22, wherein: The FD offset value indicates the number of resource block groups RBGs.

27. The device according to claim 26, wherein: Each of the number of RBGs indicated by the FD offset value has the same size as each RBG in the active BWP.

28. The device according to claim 26, wherein The offset BWP maintains the same parameters as the active BWP.

29. The device according to claim 18, wherein The at least one processor configured to measure the CSI measurement resource included in the dynamic CSI measurement gap is further configured to: determining a subband configuration indicating one or more subbands for measuring the CSI measurement resource within the dynamic CSI measurement gap; and The CSI measurement resources included in the dynamic CSI measurement gap are measured based on the one or more sub-frequency bands.

30. The device according to claim 29, wherein: The at least one processor configured to determine the sub-band configuration is further configured to: identifying a first sub-band configuration associated with the active BWP; or A second sub-band configuration associated with the dynamic CSI measurement gap is identified.

31. The apparatus of claim 18, wherein: The at least one processor is configured to determine the configuration of a dynamic CSI measurement gap and is further configured to: receiving downlink control information DCI triggering a CSI report on one or more of the CSI measurement resources, wherein The frequency domain occupancy of each of the CSI measurement resources is determined according to a starting physical resource block PRB value and a PRB quantity value configured for each of the CSI measurement resources, and wherein the determined frequency domain occupancy of each of the CSI measurement resources does not overlap with the active BWP, and wherein The dynamic CSI measurement gap is determined by at least considering the frequency domain occupancy of the CSI measurement resource.

32. The device according to claim 31, wherein Although the frequency domain occupancy of the CSI measurement resource does not overlap with the active BWP, measurement of the CSI measurement resource is performed.

33. The apparatus of claim 18, wherein: The at least one processor is further configured to: Report one or more capabilities of the user equipment, the one or more capabilities including at least information indicating whether the dynamic CSI measurement gap is supported, time domain RF retuning capability including minimum supported values ​​of a first TD duration and a second TD duration, wherein the values ​​of the first and second TD durations are reported as the same value, or frequency domain FD RF retuning capability.

34. The device according to claim 30, wherein: The CSI measurement resource included in the dynamic CSI measurement gap is a periodic CSI measurement resource or a semi-persistent SPS-CSI resource, and wherein measuring the CSI measurement resource is triggered by downlink control information.

35. An apparatus for wireless communication, comprising: means for operating within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of the total bandwidth of the component carrier; means for receiving an indication of a first time domain TD duration and a second time domain TD duration, wherein the first and second TD durations are included in a dynamic channel state information CSI measurement gap; means for determining a configuration of the dynamic CSI measurement gap, the dynamic CSI measurement gap comprising CSI measurement resources having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP; A component for measuring the CSI measurement resource included in the dynamic CSI measurement gap; means for sending a CSI report based on the measured CSI measurement resource, and wherein: The first TD duration starts before a first symbol of a first CSI measurement resource among the CSI measurement resources; and The second TD duration starts after a last symbol of a second CSI measurement resource in the CSI measurement resources.

36. A computer readable medium storing computer executable code which, when executed by a processor, causes the processor to: Operate within the active bandwidth part BWP of the component carrier, wherein, The active BWP is a portion of the total bandwidth of the component carrier; Receiving an indication of a first time domain TD duration and a second time domain TD duration, wherein the first and second TD durations are included in a dynamic channel state information CSI measurement gap; determining a configuration of the dynamic CSI measurement gap, the dynamic CSI measurement gap comprising CSI measurement resources having frequency domain occupancy within the total bandwidth of the component carrier and outside the active BWP; measuring the CSI measurement resource included in the dynamic CSI measurement gap; Sending a CSI report based on the measured CSI measurement resource; and wherein: The first TD duration starts before a first symbol of a first CSI measurement resource among the CSI measurement resources; and The second TD duration starts after a last symbol of a second CSI measurement resource in the CSI measurement resources.

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