Frequency allocation for channel state information reference signal

Abstract

A user equipment (UE) may receive an indication of a frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) configuration for one or more communications with a base station. The UE may receive a channel state information reference signal set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 988,112, filed on March 11, 2020, entitled “FREQUENCY ALLOCATION FOR CHANNEL STATE INFORMATION REFERENCE SIGNALS,” and U.S. Non-Provisional Patent Application No. 17 / 170,445, filed on February 8, 2021, entitled “FREQUENCY ALLOCATION FOR CHANNEL STATE INFORMATION REFERENCE SIGNALS,” which are hereby expressly incorporated herein by reference.

[0003] Public domain

[0004] Aspects of the present disclosure generally relate to wireless communications and techniques and apparatus for frequency allocation for channel state information reference signals.

[0005] background

[0006] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0007] A wireless network may include several base stations (BSs) that can support communications for several user equipments (UEs). The UE may communicate with the BS via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, while the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, the BS may be referred to as a Node B, a gNB, an Access Point (AP), a Radio Head, a Transmit Receiving Point (TRP), a New Radio (NR) BS, a 5G Node B, and the like.

[0008] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global level. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR and other radio access technologies are still useful.

[0009] Overview

[0010] In some aspects, a wireless communication method performed by a UE may include: receiving an indication of a frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) configuration for one or more communications with a base station, and receiving a channel state information (CSI) reference signal (CSI-RS) set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0011] In some aspects, a wireless communication method performed by a base station may include: transmitting to a UE an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with the UE, and transmitting to the UE a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0012] In some aspects, a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: receive an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with a base station; and receive a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0013] In some aspects, a base station for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: transmit to a UE an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with the UE; and transmit to the UE a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0014] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: receive an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with a base station; and receive a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0015] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to: transmit to a UE an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with the UE; and transmit to the UE a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0016] In some aspects, an apparatus for wireless communication may include: means for receiving an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with a base station, and means for receiving a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0017] In some aspects, an apparatus for wireless communication may include: means for transmitting to a UE an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with the UE, and means for transmitting to the UE a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0018] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as substantially described herein with reference to and as illustrated in the accompanying figures and specification.

[0019] The foregoing has broadly outlined the features and technical advantages of examples according to the present disclosure in an effort to make the following detailed description better understood. Additional features and advantages will be described hereinafter. The disclosed concepts and specific examples can be easily used as a basis for modifying or designing other structures for implementing the same purpose as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description and is not intended to define limitations on the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to understand the above-stated features of the present disclosure in detail, the above briefly summarized content may be described in more detail with reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and should not be considered to limit its scope, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0022] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0023] Figure 2 is a diagram illustrating an example in which a base station and a UE are in communication in a wireless network according to the present disclosure.

[0024] Figure 3 is a diagram illustrating an example of resource allocation of component carriers according to the present disclosure.

[0025] Figure 4 is a diagram illustrating an example of frequency allocation for CSI-RS according to the present disclosure.

[0026] Figure 5is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0027] Figure 6 is a diagram illustrating an example process performed, for example, by a base station according to the present disclosure.

[0028] Detailed Description

[0029] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and it will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings of this article, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is independently implemented or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods practiced using supplements or other other structures, functionality, or structures and functionality as the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.

[0030] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0031] It should be noted that while various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs after 5G (e.g., 6G).

[0032] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc. or may include elements thereof. The wireless network 100 may include several base stations 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, a B node, a gNB, a 5G B node (NB), an access point, a transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0033] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. The BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "B node", "5G NB", and "cell" may be used interchangeably herein.

[0034] In some aspects, the cell may not necessarily be stationary, and the geographic area of ​​the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0035] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , relay BS 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, relay base station, relay, or the like.

[0036] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0037] A network controller 130 may be coupled to a set of BSs and may provide coordination and control of these BSs. The network controller 130 may communicate with each BS via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.

[0038] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. UEs may also be referred to as access terminals, terminals, mobile stations, subscriber units, stations, etc. A UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0039] Some UEs may be considered as machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or to a network (e.g., a wide area network (such as the Internet) or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as client equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operationally coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0040] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific RAT and may operate on one or more frequencies. RAT may also be referred to as radio technology, air interface, etc. Frequency may also be referred to as carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0041] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0042] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating band having a first frequency range (FR1) and / or can communicate using an operating band having a second frequency range (FR2), the first frequency range (FR1) can span 410 MHz to 7.125 GHz, and the second frequency range (FR2) can span 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise specifically stated, it should be understood that the terms "sub-6 GHz" and the like, if used herein, may broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specifically stated, it should be understood that the terms "millimeter wave" and the like, if used herein, may broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0043] As indicated above, Figure 1 are provided as examples. Other examples may differ from those described in Figure 1 Examples described.

[0044] Figure 2 is a diagram illustrating an example 200 of a base station 110 and a UE 120 in communication in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0045] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0046] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, etc. In some aspects, one or more components of the UE 120 may be included in the housing 284.

[0047] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0048] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included within, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmission and / or reception components (such as Figure 2 One or more antenna elements of one or more components).

[0049] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, where applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna(s) 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 4-6 as described.

[0050] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 where applicable, and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data receiver 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna(s) 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 4-6 as described.

[0051] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the base station 110 may perform one or more techniques associated with frequency allocation for CSI-RS, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 5 The process of 500 Figure 6 600, and / or operations of other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include: a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example Figure 5 The process of 500 Figure 6 In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other aspects.

[0052] although Figure 2 The blocks in the 200 and 210 are illustrated as different components, but the functions described above with respect to these blocks may be implemented with a single hardware, software, or combined component or a combination of various components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0053] As indicated above, Figure 2 are provided as examples. Other examples may differ from those described in Figure 2 Examples described.

[0054] Figure 3 3 is a diagram illustrating an example 300 of resource allocation of a component carrier according to the present disclosure. A base station and a UE may communicate via the resources of the component carrier. For example, a base station may transmit one or more resource grants indicating one or more resources allocated for additional communication.

[0055] As indicated by reference numeral 305, a component carrier includes resources for communication between a base station and a UE. Resources may be defined in a time domain, a frequency domain, a layer domain, etc. Resources may be divided into resource blocks (RBs), time slots, subframes, frames, subcarriers, etc.

[0056] As indicated by reference numeral 310, a bandwidth part (BWP) of a component carrier may include a frequency range that may include frequency allocations for one or more resources. In some aspects, a UE may be configured to communicate with a base station using any frequency within the BWP of a component carrier.

[0057] As indicated by reference numeral 315, the BWP of the component carrier may include an allocated BWP assigned to the UE that extends through only a portion of the BWP of the component carrier. In some aspects, the UE may be configured as a reduced capability UE (e.g., a reduced capability NR device) that is configured to support a relatively narrow frequency range (e.g., a frequency range having a range that is less than the BWP range of the component carrier).

[0058] As indicated by reference numeral 320, the base station may schedule CSI-RS sets based on the component carrier BWP for transmission via resources within the component carrier resources. The base station may schedule bandwidth (e.g., ranging from a CSI-RS with the lowest frequency to a CSI-RS with the highest frequency), starting RB frequency (e.g., an RB scheduled for a CSI-RS with the lowest frequency), and / or the like for transmitting CSI-RS sets independent of any resource grant and / or CORESET location associated with a UE.

[0059] Based at least in part on the base station scheduling CSI-RS independently of resource grants and / or CORESET positions associated with the UE, the base station may schedule one or more CSI-RS for one or more resources outside the allocated BWP. If the base station schedules one or more CSI-RS for one or more resources outside the allocated BWP, the UE may not be able to receive the one or more CSI-RS, may not be able to measure the one or more CSI-RS, may report incomplete CSI to the base station, etc. This may cause the base station to use incomplete information to make decisions about resource allocation, beam selection, etc., and may consume computing, communication, and / or network resources to detect and recover from errors in communications, which are based at least in part on the base station's decision to use incomplete information.

[0060] As indicated above, Figure 3 are provided as examples. Other examples may differ from those described herein. Figure 3Examples described herein. In some aspects described herein, a UE (e.g., UE 120) may receive an indication of a frequency allocation for a dynamic resource grant, an SPS activation message or assignment, a CORESET configuration, etc., for one or more communications with a base station (e.g., base station 110). In some aspects, a UE (e.g., a reduced capability UE) may not support communication via the entire BWP of a component carrier based at least in part on a configuration of the UE, one or more components of the UE, etc. In some aspects, based at least in part on the UE not supporting communication via the entire BWP, the frequency allocation may be within a portion (e.g., a reduced BWP) of the BWP of the component carrier that supports communication between the UE and the base station. The UE may be configured to determine a configuration of a CSI-RS set based at least in part on the frequency allocation, and the base station may transmit the CSI-RS set according to the configuration. The UE may be configured to receive, measure, and / or report the CSI-RS set using resources within the frequency allocation configured for the UE. This can save computational, communication, and / or network resources that could otherwise be used to detect and recover from errors in communications based at least in part on a base station's decision to use incomplete CSI-RS information (e.g., missing information about one or more CSI-RSs that are within the BWP of a component carrier and outside of the frequency allocation).

[0061] Figure 4 4 is a diagram illustrating an example 400 of frequency allocation for CSI-RS according to the present disclosure. Figure 4 As shown, a base station (e.g., base station 110) and a UE (e.g., UE 120) can communicate, including radio resource control (RRC) signaling, transmitting CSI-RS, etc. The base station and the UE can be part of a wireless network (e.g., wireless network 100).

[0062] As indicated by reference numeral 405, the base station may transmit RRC signaling to the UE. In some aspects, the base station may transmit and the UE may receive RRC signaling for configuring the UE to have one or more configurations of one or more CSI-RSS sets. For example, a first configuration of a CSI-RS set may include a CSI-RS within a first frequency range, and a second configuration of a CSI-RS set may include a CSI-RS within a second frequency range. The first frequency range may include a first bandwidth and a first starting RB, and the second frequency range may include a second bandwidth and a second starting RB. In some aspects, one or more configurations of one or more CSI-RS sets may include multiple configurations with different bandwidths and / or different starting RBs.

[0063] As indicated by reference numeral 410, the UE may configure the UE based at least in part on the RRC signaling. For example, the UE may be configured with one or more configurations of one or more CSI-RS sets, as indicated in the RRC signaling. In some aspects, the UE may be configured to determine the configuration of a particular CSI-RS set based at least in part on selecting the configuration of the particular CSI-RS set from the one or more configurations of the one or more CSI-RS sets.

[0064] As indicated by reference numeral 415, the base station may transmit an indication of the frequency allocation. In some aspects, the UE may receive an indication of the frequency allocation associated with a dynamic resource grant, an SPS activation message or assignment, a CORESET configuration, etc. for one or more communications with the base station. In some aspects, the frequency allocation may be based at least in part on the capabilities of the UE (e.g., configuration, one or more components, etc.). As indicated by reference numeral 420, the base station may determine a configuration of a CSI-RS set to be transmitted to the UE. In some aspects, the base station may determine the configuration of the CSI-RS set based at least in part on the frequency allocation for the dynamic resource grant, the SPS activation message or assignment, the CORESET configuration, etc. For example, the base station may determine the configuration of the CSI-RS set based at least in part on the CSI-RS set within the frequency allocation. In some aspects, the UE may support a reduced bandwidth that is less than the component carrier bandwidth including the frequency allocation, and the CSI-RS set may be associated with the reduced bandwidth.

[0065] In some aspects, the base station may determine a frequency domain configuration of the configuration of the CSI-RS set based at least in part on a frequency allocation for a dynamic resource grant, an SPS activation message or assignment, a CORESET configuration, etc. In some aspects, the configuration of the CSI-RS set may indicate a time domain configuration. For example, the configuration of the CSI-RS set may include both a frequency domain configuration and a time domain configuration, include the frequency domain configuration but not the time domain configuration, or include the time domain configuration but not the frequency domain configuration.

[0066] In some aspects where the configuration of a CSI-RS set includes a frequency domain configuration but does not include a time domain configuration, the base station may determine the time domain configuration of the configuration of the CSI-RS set based at least in part on another configuration of another CSI-RS set. For example, the configuration of the CSI-RS set may include a frequency domain configuration and the base station may determine the time domain configuration of the configuration of the CSI-RS set based at least in part on a default configuration (e.g., a configuration known to the base station and the UE).

[0067] As indicated by reference numeral 425, the base station may transmit an indication of the configuration of the CSI-RS set to the UE. In some aspects, the base station may transmit the indication of the configuration of the CSI-RS set in an indication for activating a particular SPS configuration, an indication of a particular dynamic grant, an indication of a particular CORESET configuration identifier, etc. For example, the base station may transmit the indication of the configuration of the CSI-RS set along with the indication of the frequency allocation described with respect to reference numeral 415.

[0068] In some aspects, the base station may transmit an indication of the configuration of the CSI-RS set via downlink control information (DCI), one or more media access control elements (MAC CEs), etc. In some aspects, the base station may transmit an indication for activating or deactivating the configuration of the CSI-RS set via RRC signaling, DCI, one or more MAC CEs, etc.

[0069] In some aspects, the indication may indicate that the UE is to select the configuration of the CSI reference signal set from one or more configurations of the one or more CSI-RS sets configured via RRC signaling described with respect to reference numeral 405. In some aspects, the base station may transmit the indication of the configuration of the CSI-RS set via an explicit indication of a configuration in the one or more configurations. In some aspects, the indication may include the configuration of the CSI reference signal set. In other words, the base station may indicate the configuration of the CSI reference signal set independently of any configuration of the UE.

[0070] In some aspects, the base station may transmit an indication of the time domain configuration of the CSI-RS set via a DCI or one or more MAC CEs, the DCI or one or more MAC CEs identifying the time domain configuration in the time domain configuration set configured for the UE. In some aspects, the base station may transmit an indication of the time domain configuration of the CSI-RS set via a DCI or one or more MAC CEs including the time domain configuration. In some aspects, the base station may transmit an indication for activating or deactivating the configuration of the CSI-RS set via RRC signaling, DCI, one or more MAC CEs, etc.

[0071] In some aspects, the indication of the time domain configuration may be included in an indication for activating a particular SPS configuration, an indication of a particular dynamic grant, an indication of a particular CORESET configuration identity, etc. In some aspects, the indication of the time domain configuration may be transmitted along with the indication of the frequency domain configuration.

[0072] As indicated by reference numeral 430, the UE may determine the configuration of the CSI-RS set. In some aspects, the UE may determine the configuration of the CSI-RS set based at least in part on a frequency allocation for a dynamic resource grant, an SPS activation message or assignment, a CORESET configuration, or the like.

[0073] In some aspects, the UE may determine the configuration of the CSI-RS set independently of any indication from the base station indicating the configuration. In some aspects, the UE may be configured to determine the configuration of the CSI-RS set using a process known to the base station. In some aspects, the UE may determine the configuration of the CSI-RS set based at least in part on performing operations on the frequency allocation (e.g., the CSI-RS bandwidth may be based at least in part on multiplying the bandwidth portion of the resource grant or SPS by a configured value, the CSI-RS starting RB may be based at least in part on adding the configured value to the starting RB of the CORESET, etc.). In this way, the base station may be aware of the UE's determination without adding overhead for additional signaling.

[0074] In some aspects, the UE may determine the configuration of the CSI-RS set based at least in part on selecting the configuration of the CSI-RS set from one or more configurations of one or more CSI-RS sets configured for the UE. For example, the UE may select the configuration of the CSI-RS set based at least in part on an indication from a base station, a determination that the configuration of the CSI-RS set includes CSI-RS within a BWP supported by the UE, etc. In some aspects, the UE may select the configuration of the CSI-RS set based at least in part on receiving an indication to activate a particular SPS configuration, an indication of a particular dynamic grant, an indication of a particular CORESET configuration identity, an indication of a configuration (e.g., an indication of a configuration without reference to a configuration already configured for the UE), etc.

[0075] In some aspects, the UE may determine the frequency domain configuration of the configuration of the CSI-RS set based at least in part on a frequency allocation for a dynamic resource grant, an SPS activation message or assignment, a CORESET configuration, etc. In some aspects, the UE may determine the frequency domain configuration of the configuration of the CSI-RS set based at least in part on an indication of the frequency domain configuration from a base station.

[0076] In some aspects, the UE may determine a time domain configuration for the configuration of a CSI-RS set based at least in part on (e.g., explicitly) indicating a time domain configuration for the CSI-RS set. In some aspects, the UE may determine a time domain configuration for the configuration of another CSI-RS set based at least in part on another configuration for the CSI-RS set. For example, the time domain configuration may be based at least in part on a default time domain configuration (e.g., a time domain configuration to be used if the UE is configured to communicate via the entire bandwidth of the component carrier).

[0077] In some aspects, the UE may determine the time domain configuration for the configuration of the CSI-RS set based at least in part on a DCI identifying a time domain configuration in a time domain configuration set configured by the UE (e.g., based at least in part on RRC signaling), one or more MAC CEs, etc. In some aspects, the UE may determine the time domain configuration for the configuration of the CSI-RS set based at least in part on a DCI including the time domain configuration, one or more MAC CEs, etc.

[0078] As indicated by reference numeral 435, the base station may transmit the CSI-RS set based at least in part on the configuration of the CSI-RS set. For example, the base station may transmit the CSI-RS set within a reduced bandwidth portion corresponding to a frequency allocation for a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration.

[0079] As indicated by reference numeral 440, the UE may obtain measurements for the CSI-RS set. In some aspects, the UE may monitor resources scheduled for the CSI-RS set to obtain the measurements. In some aspects, the measurements may be used to determine RSRP, RSSI, RSRQ, CQI, etc., of the CSI-RS in the CSI-RS set.

[0080] The UE may report measurements of the CSI-RS, as indicated by reference numeral 445. For example, the UE may report RSRP, RSSI, RSRQ, CQI, etc. of the CSI-RS in the CSI-RS set.

[0081] As indicated by reference numeral 450, the base station may determine a subsequent configuration of a subsequent CSI-RS set. In some aspects, the subsequent configuration may be associated with a periodic or semi-static time configuration between dynamic grants, CORESET, SPS, and the like.

[0082] In some aspects, the base station may determine a subsequent configuration based at least in part on the configuration of the CSI-RS set. For example, the base station may continue to use the configuration of the CSI-RS set (e.g., associated with the frequency allocation for a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration) as a subsequent configuration for a subsequent CSI-RS set. In some aspects, the base station may continue to use the configuration of the CSI-RS set as a subsequent configuration for a subsequent CSI-RS set based at least in part on the subsequent configuration being associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET scheduled for an amount of time that satisfies a threshold (e.g., less than, or less than or equal to a threshold) after a communication associated with the dynamic resource grant, the SPS activation message or assignment, or the CORESET.

[0083] In some aspects, the base station may determine to use a subsequent configuration that is different from the configuration of the CSI-RS set. For example, the base station may determine to use a default configuration (e.g., a configured default configuration) for a subsequent CSI-RS set associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET. The base station may determine to use the default configuration based at least in part on a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET that is scheduled for a time amount that satisfies a threshold (e.g., greater than, or greater than or equal to a threshold) after the communication associated with the dynamic resource grant, the SPS activation message or assignment, or the CORESET. In some aspects, the time amount may include a threshold number of symbols, time slots, etc.

[0084] As indicated by reference numeral 455, the UE may determine a subsequent configuration of a subsequent CSI-RS set. In some aspects, the UE may determine a subsequent configuration of a subsequent CSI-RS set using the same process as described with reference numeral 450 for the base station. In this manner, the UE and the base station may agree on a subsequent configuration. For example, in some aspects, the UE may determine a subsequent configuration based at least in part on a configuration of a CSI-RS set. In some aspects, the base station may determine to use a subsequent configuration that is different from the configuration of the CSI-RS set.

[0085] As indicated by reference numeral 460, the base station may transmit a subsequent CSI-RS set based at least in part on the configuration of the subsequent CSI-RS set. For example, the base station may transmit the subsequent CSI-RS set within an increased bandwidth portion or a decreased bandwidth portion of the frequency allocation corresponding to a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration.

[0086] In this manner, the UE may be configured to receive, measure, and / or report CSI-RS sets using resources within the frequency allocation configured for the UE. This may save computational, communication, and / or network resources that may otherwise be used to detect and recover from errors in communications based at least in part on a base station's decision to use incomplete CSI-RS information (e.g., missing information about one or more CSI-RS outside of the frequency allocation).

[0087] As indicated above, Figure 4 are provided as examples. Other examples may differ from those described herein. Figure 4 Examples described.

[0088] Figure 5 is a diagram illustrating an example process 500 performed, for example, by a UE in accordance with the present disclosure. Example process 500 is an example in which a UE (eg, UE 120, etc.) performs operations associated with frequency allocation for CSI-RS.

[0089] like Figure 5 As shown, in some aspects, process 500 may include receiving an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with a base station (block 510). For example, the UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, and a CORESET configuration for one or more communications with a base station, as described above.

[0090] like Figure 5 As further shown, in some aspects, process 500 may include receiving a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, (block 520). For example, a UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, as described above. In some aspects, process 500 may further include transmitting, for the UE, a CSI-RS set having a configuration based at least in part on the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, as described above.

[0091] Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0092] In a first aspect, the UE supports a reduced bandwidth that is less than a bandwidth of a component carrier, the reduced bandwidth includes the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, and the CSI-RS set is associated with the reduced bandwidth.

[0093] In a second aspect, either alone or in combination with the first aspect, process 500 includes obtaining measurements of a CSI-RS set based at least in part on a configuration of the CSI-RS set, and reporting the measurements of the CSI-RS set.

[0094] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 500 includes determining a subsequent configuration of a subsequent CSI-RS set based at least in part on the configuration of the CSI-RS set, or one or more of a default configuration.

[0095] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, a subsequent CSI-RS set is associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET configuration for subsequent communications with the base station, and the subsequent communications with the base station are scheduled for an amount of time that satisfies a threshold after the communications with the base station.

[0096] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 500 includes receiving RRC signaling for configuring the UE to have one or more configurations of one or more CSI-RS sets, and selecting a configuration of the CSI-RS set from the one or more configurations of the one or more CSI-RS sets.

[0097] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, selecting the configuration of the CSI-RS set includes selecting the configuration of the CSI-RS set based at least in part on receiving an indication for activating a specific SPS configuration, an indication of a specific dynamic grant, an indication of a specific CORESET configuration identifier, or an indication of a configuration in the one or more configurations.

[0098] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, process 500 includes receiving one or more of these indications via one or more of a DCI or a MAC CE.

[0099] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, process 500 includes receiving an indication of activating or deactivating a configuration of the CSI-RS set via RRC signaling, DCI, or one or more of one or more MAC CEs.

[0100] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 500 includes receiving an indication of a frequency domain configuration of a configuration of the CSI-RS set via one or more of a DCI including a dynamic resource grant, a DCI including an SPS activation message or assignment, or RRC signaling indicating a CORESET configuration.

[0101] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the CSI-RS set has a frequency domain configuration based at least in part on a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration.

[0102] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the CSI-RS set has a frequency domain configuration based at least in part on an indication of the frequency domain configuration from a base station.

[0103] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the configuration of the CSI-RS set indicates a time domain configuration.

[0104] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 500 includes determining a time domain configuration of a configuration of another CSI-RS set based at least in part on another configuration of the CSI-RS set.

[0105] In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, process 500 includes determining the time domain configuration of the configuration of the CSI-RS set based at least in part on a DCI or MAC CE identifying a time domain configuration in a time domain configuration set configured by the UE, or one or more of a DCI or MAC CE including a time domain configuration.

[0106] although Figure 5 An example block diagram of process 500 is shown, but in some aspects, process 500 may include Figure 5 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 500. Additionally or alternatively, two or more blocks of the process 500 may be executed in parallel.

[0107] Figure 6 is a diagram illustrating an example process 600 performed, for example, by a base station in accordance with the present disclosure. Example process 600 is an example in which a base station (eg, base station 110, etc.) performs operations associated with frequency allocation for CSI-RS.

[0108] like Figure 6 As shown, in some aspects, process 600 may include transmitting to a UE an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with the UE (block 610). For example, a base station (e.g., using transmit processor 220, controller / processor 240, memory 242, etc.) may transmit to a UE an indication of a frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration for one or more communications with the UE, as described above.

[0109] like Figure 6As further shown, in some aspects, process 600 may include determining, for the UE, a configuration of a CSI-RS set based at least in part on the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration (block 620). For example, a base station (e.g., using controller / processor 240, memory 242, etc.) may determine, for the UE, a configuration of a CSI-RS set based at least in part on the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, as described above.

[0110] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0111] In a first aspect, the UE supports a reduced bandwidth that is less than a bandwidth of a component carrier, the reduced bandwidth includes the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, and the CSI-RS set is associated with the reduced bandwidth.

[0112] In a second aspect, alone or in combination with the first aspect, process 600 includes receiving a report of a measurement of a CSI-RS set.

[0113] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 600 includes determining a subsequent configuration of a subsequent CSI-RS set based at least in part on one or more of the configuration of the CSI-RS set or a default configuration for the UE.

[0114] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, the subsequent CSI-RS set is associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET configuration for subsequent communications with the UE, and the subsequent communications with the UE are scheduled for an amount of time that satisfies a threshold after the communications with the UE.

[0115] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 600 includes transmitting RRC signaling for configuring the UE to have one or more configurations of one or more CSI-RS sets, wherein the UE determines the configuration of the CSI-RS set based at least in part on selecting the configuration of the CSI-RS set from the one or more configurations of the one or more CSI-RS sets.

[0116] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 600 includes transmitting an indication of the configuration of the CSI-RS set for selection by the UE within one or more of an indication for activating a specific SPS configuration, an indication of a specific dynamic grant, an indication of a specific CORESET configuration identifier, or an explicit indication of a configuration in the one or more configurations.

[0117] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, process 600 includes transmitting the explicit indication via one or more of a DCI or a MAC CE.

[0118] In an eighth aspect, either alone or in combination with one or more of the first to seventh aspects, process 600 includes transmitting an indication of a configuration for activating or deactivating the CSI-RS set via one or more of RRC signaling, DCI, or one or more MAC CEs.

[0119] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 600 includes transmitting an indication of a frequency domain configuration of the configuration of the CSI-RS set via one or more of: a DCI including a dynamic resource grant, a DCI including an SPS activation message or assignment, or RRC signaling indicating a CORESET configuration.

[0120] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, determining the configuration of the CSI-RS set includes determining a frequency domain configuration of the configuration of the CSI-RS set based at least in part on the frequency allocation of at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration.

[0121] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the configuration of the CSI-RS set indicates a time domain configuration.

[0122] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, process 600 includes determining a time domain configuration of a configuration of another CSI-RS set based at least in part on another configuration of the CSI-RS set.

[0123] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, process 600 includes: determining a time domain configuration of the configuration of the CSI-RS set, and transmitting an indication of the time domain configuration of the CSI-RS set via a DCI or MAC CE identifying the time domain configuration in the time domain configuration set configured for the UE, or one or more of the DCI or MAC CE including the time domain configuration.

[0124] although Figure 6 An example block diagram of process 600 is shown, but in some aspects, process 600 may include Figure 6 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 600. Additionally or alternatively, two or more blocks of process 600 may be executed in parallel.

[0125] The following provides an overview of some aspects of the disclosure:

[0126] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: receiving an indication of a frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) for one or more communications with a base station; and receiving a channel state information reference signal set having a configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

[0127] Aspect 2: A method as in Aspect 1, wherein the UE supports a reduced bandwidth that is smaller than the bandwidth of a component carrier, the reduced bandwidth includes the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration, and wherein the channel state information reference signal set is associated with the reduced bandwidth.

[0128] Aspect 3: The method of any one of Aspects 1 to 2 further comprises: determining a subsequent configuration of a subsequent channel state information reference signal set based at least in part on one or more of: a configuration of the channel state information reference signal set, or a default configuration.

[0129] Aspect 4: A method as in Aspect 3, wherein the subsequent channel state information reference signal set is associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET configuration for subsequent communications with the base station, and wherein the subsequent communications with the base station are scheduled for an amount of time that satisfies a threshold after the communication with the base station.

[0130] Aspect 5: The method as in any one of Aspects 1 to 4 further comprises: receiving radio resource control signaling for configuring the UE to have one or more configurations of one or more channel state information reference signal sets; and selecting the configuration of the channel state information reference signal set from the one or more configurations of the one or more channel state information reference signal sets.

[0131] Aspect 6: A method as in Aspect 5, wherein selecting the configuration of the channel state information reference signal set includes: selecting the configuration of the channel state information reference signal set based at least in part on receiving one or more of the following: an indication for activating a specific SPS configuration, an indication of a specific dynamic grant, an indication of a specific CORESET configuration identifier, or an indication of a configuration among the one or more configurations.

[0132] Aspect 7: The method of any one of Aspects 1 to 6 further comprises: receiving an indication for activating or deactivating the configuration of the channel state information reference signal set via one or more of the following: radio resource control signaling, downlink control information, or one or more media access control control elements.

[0133] Aspect 8: The method of any one of Aspects 1 to 7 further includes: receiving an indication of the frequency domain configuration of the configuration of the channel state information reference signal set via one or more of the following: downlink control information including dynamic resource grants, downlink control information including SPS activation messages or assignments, or radio resource control signaling indicating CORESET configuration.

[0134] Aspect 9: The method of any one of Aspects 1 to 8, wherein the channel state information reference signal set has a frequency domain configuration based at least in part on the frequency allocation for at least one of a dynamic resource grant, an SPS activation message or assignment, or a CORESET configuration.

[0135] Aspect 10: The method of any one of aspects 1 to 9, wherein the channel state information reference signal set has a frequency domain configuration based at least in part on an indication of the frequency domain configuration from a base station.

[0136] Aspect 11: The method according to any one of Aspects 1 to 10, wherein the configuration of the channel state information reference signal set indicates a time domain configuration.

[0137] Aspect 12: A method as in any one of Aspects 1 to 11, wherein the channel state information reference signal set has a time domain configuration based at least in part on one or more of: downlink control information or a media access control control element identifying the time domain configuration in a time domain configuration set configured for the UE, downlink control information or a media access control control element including the time domain configuration, or another configuration of another channel state information reference signal set.

[0138] Aspect 13: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in one or more of Aspects 1-12.

[0139] Aspect 14: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method as described in one or more of aspects 1-12.

[0140] Aspect 15: An apparatus for wireless communication, comprising at least one means for performing the method as described in one or more of aspects 1-12.

[0141] Aspect 16: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-12.

[0142] Aspect 17: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method as described in one or more of aspects 1-12. The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired through practice of the aspects.

[0143] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. "Software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, etc., whether it is described in software, firmware, middleware, microcode, hardware description language or other terms. As used herein, processors are implemented with hardware, and / or a combination of hardware and software. It will be obvious that the systems and / or methods described herein can be implemented in different forms of hardware, and / or a combination of hardware and software. The actual dedicated control hardware or software code for implementing these systems and / or methods does not limit various aspects. Thus, the operation and behavior of these systems and / or methods are described herein without reference to specific software codes--it is understood that software and hardware can be designed to implement these systems and / or methods based at least in part on the description herein.

[0144] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0145] Although specific feature combinations are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner not specifically described in the claims and / or undisclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of various aspects includes that each dependent claim is combined with each other claim in this group of claims. As used herein, the phrase quoting "at least one of" a column of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover: a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc, or any other sorting of a, b and c).

[0146] Elements, actions or instructions used herein should not be interpreted as key or necessary unless explicitly described as such. Moreover, as used herein, the articles "one" and "a" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more projects quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set (set)" and "group" are intended to include one or more projects (for example, a combination of related items, non-related items, or related items and non-related items), and can be used interchangeably with "one or more". In the occasion of intending to have only one project, the phrase "only one" or similar language is used. Moreover, as used herein, the terms "having", "containing", "including" etc. are intended to be open terms. In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a sequence is intended to be inclusive and may be used interchangeably with "and / or" unless expressly stated otherwise (e.g., when used in conjunction with "either of" or "only one of."

Claims

1. A wireless communication method performed by a user equipment (UE), comprising: receiving signaling for configuring the UE to have a first configuration of one or more channel state information reference signal sets and a second configuration of one or more channel state information reference signal sets, the first configuration being associated with a first frequency range and the second configuration being associated with a second frequency range, the UE comprising a reduced capability UE, and the second frequency range being outside a frequency range supported by the reduced capability UE; receiving an indication of a frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) configuration for one or more communications with a base station, The first frequency range is within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and the second frequency range is not within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration; as well as A set of channel state information reference signals is received having the first configuration based at least in part on the first frequency range within the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

2. The method of claim 1, wherein: The UE supports a reduced bandwidth that is less than a bandwidth of a component carrier, the reduced bandwidth comprising the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and The channel state information reference signal set is associated with the reduced bandwidth.

3. The method of claim 1, further comprising: Determining a subsequent configuration of a subsequent channel state information reference signal set based at least in part on one or more of: the first configuration of the channel state information reference signal set, or Default configuration.

4. The method of claim 3, wherein: The subsequent channel state information reference signal set is associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET configuration for subsequent communications with the base station, and Wherein subsequent communications with the base station are scheduled for an amount of time that satisfies a threshold after the one or more communications with the base station.

5. The method of claim 1, further comprising: The first configuration of the channel state information reference signal set is selected based at least in part on the first configuration including the one or more channel state information reference signals within the frequency allocation.

6. The method of claim 5, wherein selecting the first configuration of the channel state information reference signal set comprises: The first configuration of the channel state information reference signal set is selected based at least in part on receiving one or more of: Instructions for activating a specific SPS configuration, Indication of a specific dynamic grant, an indication of a specific CORESET configuration identifier, or An indication of a configuration of the one or more configurations.

7. The method of claim 1, further comprising: Receiving an indication for activating or deactivating the first configuration of the channel state information reference signal set via one or more of: Radio Resource Control Signaling, Downlink control information, or One or more media access control-control elements.

8. The method of claim 1, further comprising: Receiving an indication of a frequency domain configuration of the first configuration of the channel state information reference signal set via one or more of: downlink control information including said dynamic resource grant, including the SPS activation message or assigned downlink control information, or Radio Resource Control signaling indicating the CORESET configuration.

9. The method of claim 1, wherein: The channel state information reference signal set has a frequency domain configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

10. The method of claim 1, wherein: The set of channel state information reference signals has a frequency domain configuration based at least in part on an indication of the frequency domain configuration from the base station.

11. The method of claim 1, wherein: The configuration of the channel state information reference signal set indicates a time domain configuration.

12. The method of claim 1, wherein: The channel state information reference signal set has a time domain configuration based at least in part on one or more of: identifying downlink control information or media access control-control element of the time domain configuration in the time domain configuration set configured for the UE, Downlink control information or medium access control-control element including said time domain configuration, or Another configuration of another channel state information reference signal set.

13. A user equipment (UE) for wireless communication, comprising: one or more memories; as well as one or more processors coupled to the one or more memories, the one or more processors configured to: receiving signaling for configuring the UE to have a first configuration of one or more channel state information reference signal sets and a second configuration of one or more channel state information reference signal sets, the first configuration being associated with a first frequency range and the second configuration being associated with a second frequency range, the UE comprising a reduced capability UE, and the second frequency range being outside a frequency range supported by the reduced capability UE; Receiving an indication of frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) configuration for one or more communications with a base station The first frequency range is within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and the second frequency range is not within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration; as well as A set of channel state information reference signals is received having the first configuration based at least in part on the first frequency range within the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

14. The UE according to claim 13, wherein: The UE supports a reduced bandwidth that is less than a bandwidth of a component carrier, the reduced bandwidth comprising the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and The channel state information reference signal set is associated with the reduced bandwidth.

15. The UE according to claim 13, wherein: The one or more processors are further configured to: Determining a subsequent configuration of a subsequent channel state information reference signal set based at least in part on one or more of: the first configuration of the channel state information reference signal set, or Default configuration.

16. The UE according to claim 15, wherein: The subsequent channel state information reference signal set is associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET configuration for subsequent communications with the base station, and Wherein subsequent communications with the base station are scheduled for an amount of time that satisfies a threshold after the one or more communications with the base station.

17. The UE according to claim 13, wherein: The one or more processors are further configured to: The first configuration of the channel state information reference signal set is selected based at least in part on the first configuration including the one or more channel state information reference signals within the frequency allocation.

18. The UE according to claim 17, wherein: The one or more processors, when selecting the configuration of the channel state information reference signal set, are configured to: The first configuration of the channel state information reference signal set is selected based at least in part on receiving one or more of: Instructions for activating a specific SPS configuration, Indication of a specific dynamic grant, an indication of a specific CORESET configuration identifier, or An indication of a configuration of the one or more configurations.

19. The UE according to claim 13, wherein: The one or more processors are further configured to: Receiving an indication for activating or deactivating the first configuration of the channel state information reference signal set via one or more of: Radio Resource Control Signaling, Downlink control information, or One or more media access control-control elements.

20. The UE according to claim 13, wherein: The one or more processors are further configured to: Receiving an indication of a frequency domain configuration of the first configuration of the channel state information reference signal set via one or more of: downlink control information including said dynamic resource grant, including the SPS activation message or assigned downlink control information, or Radio Resource Control signaling indicating the CORESET configuration.

21. The UE according to claim 13, wherein: The channel state information reference signal set has a frequency domain configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

22. The UE according to claim 13, wherein: The set of channel state information reference signals has a frequency domain configuration based at least in part on an indication of the frequency domain configuration from the base station.

23. The UE according to claim 13, wherein: The first configuration of the channel state information reference signal set indicates a time domain configuration.

24. The UE according to claim 13, in, The channel state information reference signal set has a time domain configuration based at least in part on one or more of: Identify the downlink control information or media access control-control element of the time domain configuration in the time domain configuration set configured for the UE Downlink control information or medium access control-control element including the time domain configuration, or Another configuration of another channel state information reference signal set.

25. A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: receiving signaling for configuring the UE to have a first configuration of one or more channel state information reference signal sets and a second configuration of one or more channel state information reference signal sets, the first configuration being associated with a first frequency range and the second configuration being associated with a second frequency range, the UE comprising a reduced capability UE, and the second frequency range being outside a frequency range supported by the reduced capability UE; Receiving an indication of frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) configuration for one or more communications with a base station The first frequency range is within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and the second frequency range is not within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration; as well as A set of channel state information reference signals is received having the first configuration based at least in part on the first frequency range within the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

26. The non-transitory computer readable medium of claim 25, wherein: The UE supports a reduced bandwidth that is less than a bandwidth of a component carrier, the reduced bandwidth comprising the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and The channel state information reference signal set is associated with the reduced bandwidth.

27. The non-transitory computer-readable medium of claim 25, wherein the one or more instructions further cause the UE to: Determining a subsequent configuration of a subsequent channel state information reference signal set based at least in part on one or more of: the first configuration of the channel state information reference signal set, or Default configuration.

28. A device for wireless communication, comprising: means for receiving signaling for configuring the device to have a first configuration of one or more sets of channel state information reference signals and a second configuration of one or more sets of channel state information reference signals, the first configuration being associated with a first frequency range and the second configuration being associated with a second frequency range, the device comprising a reduced capability device, and the second frequency range being outside a frequency range supported by the reduced capability device; means for receiving an indication of a frequency allocation for at least one of a dynamic resource grant, a semi-persistent scheduling (SPS) activation message or assignment, or a control resource set (CORESET) configuration for one or more communications with a base station, The first frequency range is within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and the second frequency range is not within the frequency allocation of the at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration; as well as Means for receiving a channel state information reference signal set having the first configuration based at least in part on the first frequency range within the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

29. The apparatus of claim 28, wherein: The apparatus supports a reduced bandwidth that is less than a bandwidth of a component carrier, the reduced bandwidth comprising the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration, and The channel state information reference signal set is associated with the reduced bandwidth.

30. The apparatus of claim 28, further comprising: Means for determining a subsequent configuration of a subsequent channel state information reference signal set based at least in part on one or more of: the first configuration of the channel state information reference signal set, or Default configuration.

31. The apparatus of claim 30, wherein: The subsequent channel state information reference signal set is associated with a subsequent dynamic resource grant, a subsequent SPS activation message or assignment, or a subsequent CORESET configuration for subsequent communications with the base station, and Wherein subsequent communications with the base station are scheduled for an amount of time that satisfies a threshold after the one or more communications with the base station.

32. The apparatus of claim 28, further comprising: Means for selecting the first configuration of the channel state information reference signal set based at least in part on the first configuration including the one or more channel state information reference signals within the frequency allocation.

33. The apparatus of claim 32, wherein the means for selecting the first configuration of the channel state information reference signal set comprises: means for selecting the first configuration of the channel state information reference signal set based at least in part on receiving one or more of: Instructions for activating a specific SPS configuration, Indication of a specific dynamic grant, an indication of a specific CORESET configuration identifier, or An indication of a configuration of the one or more configurations.

34. The apparatus of claim 28, further comprising: means for receiving an indication for activating or deactivating the first configuration of the channel state information reference signal set via one or more of: Radio Resource Control Signaling, Downlink control information, or One or more media access control-control elements.

35. The apparatus of claim 28, further comprising: means for receiving an indication of a frequency domain configuration of the first configuration of the channel state information reference signal set via one or more of: downlink control information including said dynamic resource grant, including the SPS activation message or assigned downlink control information, or Radio Resource Control signaling indicating the CORESET configuration.

36. The apparatus of claim 28, wherein: The channel state information reference signal set has a frequency domain configuration based at least in part on the frequency allocation for at least one of the dynamic resource grant, the SPS activation message or assignment, or the CORESET configuration.

37. The apparatus of claim 28, wherein: The set of channel state information reference signals has a frequency domain configuration based at least in part on an indication of the frequency domain configuration from the base station.

38. The apparatus of claim 28, wherein: The configuration of the channel state information reference signal set indicates a time domain configuration.

39. The apparatus of claim 28, wherein: The channel state information reference signal set has a time domain configuration based at least in part on one or more of: identifying downlink control information or a media access control-control element of the time domain configuration in a time domain configuration set configured for the device, Downlink control information or medium access control-control element including said time domain configuration, or Another configuration of another channel state information reference signal set.

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