Beam Gain Signaling

Abstract

A base station transmits a first transmission using a first directional beam and determines an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH) for a user equipment (UE). The base station transmits an indication of the EIRP relationship between the first transmission and the PDSCH to the UE. Subsequently, the base station transmits the PDSCH to the UE using a second directional beam. The UE uses the indication of the EIRP relationship to receive the PDSCH from the base station on the second directional beam.

Description

[0001] Priority claim under 35 USC § 119

[0002] This patent application claims priority to non-provisional application No. 16 / 852,372, filed on April 17, 2020, entitled “BEAM GAIN SIGNALING,” which is assigned to the assignee thereof and is hereby expressly incorporated herein by reference. Technical Field

[0003] The present disclosure relates generally to communication systems and, more particularly, to wireless communications involving directional beams.

[0004] introduction

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

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

[0007] A brief overview of some examples

[0008] The following is a brief summary of one or more aspects to provide a basic understanding of such aspects. This summary is not an exhaustive overview of all conceivable aspects and is neither intended to identify key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

[0009] In one aspect of the present disclosure, methods, computer-readable media, and apparatus for wireless communications are provided. Some implementations may occur at a base station. In some apparatus implementations, the base station may transmit a first transmission using a first directional beam and determine an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH) for a user equipment (UE). The base station may then transmit an indication of the EIRP relationship between the first transmission and the PDSCH, for example, to the UE. The base station may then transmit the PDSCH, for example, to the UE, using a second directional beam.

[0010] In another aspect of the present disclosure, methods, computer-readable media, and apparatuses for wireless communications are provided. Some implementations may occur at a UE. In some apparatus implementations, the UE may receive a first transmission from a base station on a first directional beam. The UE may receive an indication of an EIRP relationship between the first transmission and a PDSCH from the base station, and may use the EIRP relationship to receive the PDSCH from the base station on a second directional beam.

[0011] To accomplish the foregoing and related ends, one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and accompanying drawings set forth in detail certain illustrative features of the one or more aspects. However, these features are indicative of but a few of the various ways in which the principles of the various aspects may be employed, and this description is intended to encompass all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a diagram illustrating an example of a wireless communication system and access network according to some aspects of the present disclosure.

[0014] Figure 2A 、 2B , 2C, and 2D are diagrams illustrating examples of a first 5G / NR frame, a DL channel within a 5G / NR subframe, a second 5G / NR frame, and a UL channel within a 5G / NR subframe, respectively.

[0015] Figure 3 is a diagram illustrating an example of a base station and a UE in an access network according to some aspects of the present disclosure.

[0016] Figure 4 Illustrated is a communication system including a base station and a UE that communicate using beamforming in accordance with some aspects of the present disclosure.

[0017] Figure 5 is an example communication flow between a base station and a UE including signaling regarding an EIRP relationship between a first downlink transmission and a PDSCH for the UE according to some aspects of the present disclosure.

[0018] Figure 6 is a flow chart of a method of wireless communication at a base station including signaling regarding an EIRP relationship between a first downlink transmission and a PDSCH for a UE according to some aspects of the present disclosure.

[0019] Figure 7 is a conceptual data flow diagram illustrating the flow of data between different devices / components in an example apparatus according to some aspects of the present disclosure.

[0020] Figure 8 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system according to some aspects of the present disclosure.

[0021] Figure 9 is a flow chart of a method of wireless communication at a UE that includes receiving signaling regarding an EIRP relationship between a first downlink transmission and a PDSCH for the UE, according to some aspects of the present disclosure.

[0022] Figure 10 is a conceptual data flow diagram illustrating the flow of data between different devices / components in an example apparatus according to some aspects of the present disclosure.

[0023] Figure 11 is a diagram illustrating an example of a hardware implementation for an apparatus employing a processing system according to some aspects of the present disclosure.

[0024] Detailed description

[0025] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. This detailed description includes specific details to provide a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid overstating such concepts.

[0026] Several aspects of telecommunications systems will now be presented with reference to various apparatus and methods. These apparatus and methods are described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively, "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0027] As an example, an element, or any part of an element, or any combination of elements can be implemented as a "processing system" comprising one or more processors. Examples of processors include: a microprocessor, a microcontroller, a graphics processing unit (GPU), a central processing unit (CPU), an application processor, a digital signal processor (DSP), a reduced instruction set computing (RISC) processor, a system on a chip (SoC), a baseband processor, a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, a gating logic, a discrete hardware circuit, and other suitable hardware configured to perform the various functionalities described throughout this disclosure. One or more processors in a processing system can execute software. Software should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether it is described in software, firmware, middleware, microcode, hardware description language, or other terms.

[0028] Accordingly, in one or more example embodiments, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, these functions may be stored or encoded on a computer-readable medium as one or more instructions or codes. Computer-readable media include computer storage media. Storage media can be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, a combination of the above-mentioned types of computer-readable media, or any other medium that can be used to store computer-accessible instructions or data structure forms of computer-executable code.

[0029] Although various aspects and embodiments are described in this application by way of illustration of some examples, it will be understood by those skilled in the art that additional implementations and use cases may be generated in many different arrangements and scenarios. The innovations described herein may be implemented across many different platform types, devices, systems, shapes, sizes, and packaging arrangements. For example, various embodiments and / or uses may be generated via integrated chip embodiments and other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / shopping devices, medical devices, AI-enabled devices, etc.). Although some examples may or may not be specifically for each use case or application, the wide applicability of the described innovations may occur. The scope of each implementation may range from chip-level or module components to non-module, non-chip-level implementations, and further to aggregated, distributed, or OEM devices or systems incorporating one or more aspects of the described innovations. In some practical environments, the devices incorporating the various aspects and features described may also necessarily include additional components and features for implementing and practicing the claimed and described embodiments. For example, the transmission and reception of wireless signals necessarily include several components for analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The innovations described herein are intended to be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, end-user devices, and the like, of various sizes, shapes, and configurations.

[0030] Figure 1 1 is a diagram illustrating an example of a wireless communication system and access network 100. Access network 100 may include one or more base stations 102 or 180 and one or more UEs 104. Base stations (base stations 102 / 180) may utilize beamforming 182 with UEs 104 to, for example, compensate for extremely high path loss and short range. Base stations 180 and UEs 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming.

[0031] Base station 180 may transmit beamformed signals in one or more transmit directions 182′ to UE 104. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182″. UE 104 may also transmit beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the best receive direction and transmit direction for each of base station 180 / UE 104. The transmit direction and receive direction of base station 180 may be the same or different. The transmit direction and receive direction of UE 104 may be the same or different.

[0032] Some physical channels (such as channels including SSB, TRS, CSI-RS, etc.) can be transmitted by base station 102 / 180 using wider spatial beams, while data (e.g., physical downlink shared channel) can be transmitted using narrower beams to improve spectrum efficiency. The difference in beams may cause a mismatch between the received powers observed by UE 104 on different channels. When there is a beam change at base station 102 / 180, the power difference may cause challenges to the receiver control loop at the UE.

[0033] Various aspects presented herein improve automatic gain control convergence and / or channel estimation of the UE 104 through signaling from the base station 102 / 180 indicating an EIRP relationship between the UE 104 's first downlink transmission and the PDSCH.

[0034] In some examples, base station 102 or 180 may include an EIRP indication component 199 configured to determine an EIRP relationship between a first downlink transmission of UE 104 and a PDSCH. EIRP indication component 198 may be configured to transmit an indication of the EIRP relationship between the first transmission and the PDSCH to UE 104. Subsequently, base station 102 or 180 may transmit the PDSCH to the UE using a second directional beam. UE 104 may include an EIRP indication receiving component 198 configured to receive an indication of the EIRP relationship between the first transmission and the PDSCH from base station 102 or 180. EIRP indication receiving component 198 may be configured to receive the PDSCH from base station 102 or 180 on the second directional beam using the received EIRP relationship. For example, UE 105 may use the EIRP relationship indicated by base station 102 or 180 to perform automatic gain control to receive the PDSCH. In another example, UE 104 may perform channel estimation using the EIRP relationship indicated by the base station to receive the PDSCH.

[0035] Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar areas such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

[0036] The wireless communication system (also known as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)). The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell includes a base station. Small cells include femto cells, pico cells, and micro cells.

[0037] Base stations 102 configured for 4G LTE (collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) can interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). Base stations 102 configured for 5G NR (collectively referred to as the Next Generation RAN (NG-RAN)) can interface with the core network 190 via a second backhaul link 184. Among other functions, the base stations 102 can perform one or more of the following: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of alert messages. The base stations 102 can communicate with each other directly or indirectly (eg, through the EPC 160 or the core network 190) over a third backhaul link 134 (eg, an X2 interface). The third backhaul link 134 can be wired or wireless.

[0038] Base stations 102 can communicate wirelessly with UEs 104. Each base station 102 can provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102′ can have a coverage area 110′ that overlaps with the coverage area 110 of one or more macro base stations 102. A network that includes both small cells and macro cells can be referred to as a heterogeneous network. A heterogeneous network can also include a home evolved Node B (eNB) (HeNB), which can provide service to a restricted group known as a closed subscriber group (CSG). The communication link 120 between the base station 102 and the UE 104 can include uplink (UL) (also known as reverse link) transmissions from the UE 104 to the base station 102 and / or downlink (DL) (also known as forward link) transmissions from the base station 102 to the UE 104. The communication link 120 can utilize multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. These communication links may be over one or more carriers. For each carrier allocated in the carrier aggregation for a total of up to Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 may use spectrum with a bandwidth of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.). These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to UL). The component carriers may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell), and the secondary component carriers may be referred to as secondary cells (SCells).

[0039] Some UEs 104 may communicate with each other using device-to-device (D2D) communication links 158. The D2D communication links 158 may use DL / UL WWAN spectrum. The D2D communication links 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be accomplished through various wireless D2D communication systems, such as, for example, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0040] The wireless communication system may further include a Wi-Fi access point (AP) 150 in communication with a Wi-Fi station (STA) 152 in the 5 GHz unlicensed spectrum via a communication link 154. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.

[0041] Small cell 102′ may operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell 102′ may employ NR and use the same 5 GHz unlicensed spectrum as used by Wi-Fi AP 150. Small cell 102′ employing NR in the unlicensed spectrum may improve access network coverage and / or increase access network capacity.

[0042] Whether a small cell 102′ or a large cell (e.g., a macro base station), base station 102 may include and / or be referred to as an eNB, a gB node (gNB), or another type of base station. Some base stations 180 (such as gNBs) may operate in the traditional sub-6 GHz spectrum, millimeter wave (mmW) frequencies, and / or near-mmW frequencies to communicate with UE 104. When base station 180 operates in mmW or near-mmW frequencies, base station 180 may be referred to as a mmW base station. Extremely high frequency (EHF) is a portion of the RF spectrum in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. Radio waves in this band may be referred to as millimeter waves. Near-mmW frequencies extend down to 3 GHz frequencies with a wavelength of 100 mm. Super high frequency (SHF) frequency bands extend between 3 GHz and 30 GHz and are also referred to as centimeter waves. Communications using mmW / near-mmW radio frequency (RF) bands (e.g., 3 GHz–300 GHz) have extremely high path loss and short range. The electromagnetic spectrum is often subdivided by different authors or entities into different categories, bands, channels, etc. based on frequency / wavelength. For example, in 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz-7125 MHz) and FR2 (24250 MHz–52600 MHz). Although a portion of FR1 is greater than 6 GHz (>6000 MHz), FR1 is often (interchangeably) referred to as the sub-6 GHz band in various documents and articles on the subject of 5G NR. Similar naming issues sometimes arise in various documents and articles on the subject of 5G NR regarding FR2. Although a portion of FR2 is less than 30 GHz (<30000 MHz), FR2 is often (interchangeably) referred to as the millimeter wave band. However, some authors / entities prefer to define wireless signals with wavelengths between 1 and 10 mm as falling within the millimeter wave band (30 GHz–300 GHz).

[0043] Considering the above examples, unless otherwise specified, the term "sub-6 GHz," if used as an example herein, may refer to all or a portion of FR1 for 5G NR. Furthermore, unless otherwise specified, the term "millimeter wave," as used as an example herein, may refer to all or a portion of FR2 for 5G NR and / or all or a portion of the 30 GHz-300 GHz band.

[0044] The above examples are not necessarily intended to limit the claimed subject matter. For example, unless otherwise stated, the claimed subject matter related to wireless communications is not necessarily intended to be limited to frequency bands, etc., defined by any particular author / entity.

[0045] The mmW base station 180 may utilize beamforming 182 (as described above) with the UE 104 to compensate for the extremely high path loss and short range.

[0046] EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172. MME 162 may be in communication with a Home Subscriber Server (HSS) 174. MME 162 is a control node that handles signaling between UE 104 and EPC 160. Generally speaking, MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are passed through Serving Gateway 166, which itself is connected to PDN Gateway 172. PDN Gateway 172 provides UE IP address allocation and other functions. PDN Gateway 172 and BM-SC 170 are connected to IP Services 176. IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), PS streaming services, and / or other IP services. The BM-SC 170 can provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 can serve as the entry point for content providers' MBMS transmissions, authorize and initiate MBMS bearer services within the Public Land Mobile Network (PLMN), and schedule MBMS transmissions. The MBMS Gateway 168 can be used to distribute MBMS traffic to base stations 102 within the Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a specific service, and can be responsible for session management (start / stop) and collecting eMBMS-related charging information.

[0047] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. The AMF 192 may be in communication with a unified data management (UDM) 196. The AMF 192 is a control node that handles signaling between the UE 104 and the core network 190. Generally speaking, the AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are passed through the UPF 195. The UPF 195 provides UE IP address allocation and other functions. The UPF 195 is connected to the IP services 197. The IP services 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), packet switched (PS) streaming (PSS) services, and / or other IP services.

[0048] A base station may include and / or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit reception point (TRP), or some other suitable terminology. Base station 102 provides an access point for UE 104 to EPC 160 or core network 190. Examples of UE 104 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet device, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor / actuator, a display, or any other similarly functional device. Some UEs 104 may be referred to as IoT devices (e.g., a parking meter, a gas pump, an oven, a vehicle, a heart monitor, etc.). UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0049] Figure 2A FIG200 is a diagram illustrating an example of a first subframe within a 5G / NR frame structure. Figure 2B is a diagram 230 illustrating an example of DL channels within a 5G / NR subframe. Figure 2C FIG250 is a diagram illustrating an example of a second subframe within a 5G / NR frame structure. Figure 2D280 is a diagram illustrating an example of UL channels within a 5G / NR subframe. The 5G / NR frame structure can be frequency division duplex (FDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to either DL or UL; or it can be time division duplex (TDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to both DL and UL. Figure 2A 、 2C In the example provided, the 5G / NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (mostly DL) and subframe 3 is configured with slot format 34 (mostly UL), where D is DL, U is UL, and X is for flexible use between DL / UL. Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are full DL and full UL, respectively. Other slot formats 2-61 include a mix of DL, UL, and flexible codewords. The UE is configured with the slot format (dynamically configured through DL control information (DCI) or semi-statically / statically configured through radio resource control (RRC) signaling) via the received slot format indicator (SFI). Note that the following description also applies to the 5G / NR frame structure for TDD.

[0050] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include mini-slots, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, while for time slot configuration 1, each time slot may include 7 symbols. The symbols on the DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also known as single carrier frequency division multiple access (SC-FDMA) symbols) (for power-limited scenarios; limited to single stream transmission). The number of time slots within a subframe is based on the time slot configuration and parameter design. For slot configuration 0, different parameter designs μ of 0 to 5 allow 1, 2, 4, 8, 16, and 32 slots per subframe, respectively. For slot configuration 1, different parameter designs 0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter design μ, there are 14 symbols per slot and 2 per subframe. μ The subcarrier spacing and symbol length / duration vary depending on the parameter design. The subcarrier spacing can be equal to 2 μ*15kHz, where μ is parameter design 0 to 5. Thus, parameter design μ=0 has a subcarrier spacing of 15kHz, while parameter design μ=5 has a subcarrier spacing of 480kHz. Figures 2A-2D An example is provided for slot configuration 0 with 14 symbols per slot and parameter design μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.

[0051] A resource grid can be used to represent the frame structure. Each slot includes a resource block (RB) (also called a physical RB (PRB)) that extends over 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0052] like Figure 2A As explained in

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

[0053] Figure 2B An example of various DL channels within a subframe of a frame is illustrated. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE includes 9 RE groups (REGs), and each REG includes 4 consecutive REs in an OFDM symbol. The primary synchronization signal (PSS) may be within symbol 2 of a particular subframe of a frame. The PSS is used by the UE 104 to determine subframe / symbol timing and physical layer identity. The secondary synchronization signal (SSS) may be within symbol 4 of a particular subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information not transmitted through the PBCH (such as System Information Blocks (SIBs)), and paging messages.

[0054] As in Figure 2CAs illustrated in FIG, some REs carry DM-RSs for channel estimation at the base station (indicated as R for one specific configuration, but other DM-RS configurations are possible). The UE may transmit DM-RSs for the physical uplink control channel (PUCCH) and DM-RSs for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first or first two symbols of the PUSCH. The PUCCH DM-RS may be transmitted in different configurations depending on whether a short PUCCH or a long PUCCH is transmitted and on the specific PUCCH format used. The UE may transmit a sounding reference signal (SRS). The SRS may be transmitted in the last symbol of the subframe. The SRS may have a comb structure, and the UE may transmit the SRS on one of the comb teeth. The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0055] Figure 2D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at the position indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and hybrid automatic repeat request (HARQ) ACK / NACK feedback. The PUSCH carries data and may additionally be used to carry buffer status reports (BSRs), power headroom reports (PHRs), and / or UCI.

[0056] Figure 33 is a block diagram of a base station 310 and a UE 350 in communication in an access network. In the DL, IP packets from the EPC 160 may be provided to the controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functionality. Layer 3 includes the radio resource control (RRC) layer, and layer 2 includes the service data adaptation protocol (SDAP) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, and the medium access control (MAC) layer. The controller / processor 375 provides RRC layer functionality associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0057] The transmit (TX) processor 316 and the receive (RX) processor 370 implement Layer 1 functionality associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection on the transport channel, forward error correction (FEC) encoding / decoding of the transport channel, interleaving, rate matching, mapping onto the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then combined together using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time-domain OFDM symbol stream. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes and for spatial processing. The channel estimates may be derived from a reference signal and / or channel condition feedback transmitted by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0058] At the UE 350, each receiver 354RX receives a signal via its corresponding antenna 352. Each receiver 354RX recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functionality associated with various signal processing functions. The RX processor 356 may perform spatial processing on the information to recover any spatial streams destined for the UE 350. If multiple spatial streams are destined for the UE 350, they may be combined by the RX processor 356 into a single OFDM symbol stream. The RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the signal constellation point most likely transmitted by the base station 310. These soft decisions may be based on channel estimates calculated by the channel estimator 358. These soft decisions are then decoded and deinterleaved to recover the data and control signals originally transmitted on the physical channel by the base station 310. These data and control signals are then provided to the controller / processor 359, which implements layer 3 and layer 2 functionality.

[0059] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer-readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, cipher decoding, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 359 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0060] Similar to the functionality described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression and security (ciphering, deciphering, integrity protection, integrity verification); RLC layer functionality associated with delivery of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing MAC SDUs onto TBs, demultiplexing MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0061] Channel estimates derived by a channel estimator 358 from a reference signal or feedback transmitted by the base station 310 may be used by a TX processor 368 to select the appropriate coding and modulation scheme, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0062] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to an RX processor 370.

[0063] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer-readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport and logical channels, packet reassembly, cipher decoding, header decompression, and control signal processing to recover IP packets from the UE 350. The IP packets from the controller / processor 375 may be provided to the EPC 160. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0064] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform operations related to Figure 1 The 198 combines all aspects.

[0065] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform operations related to Figure 1 The 199 combines all aspects.

[0066] If combined Figure 1 As described, wireless devices can use antenna arrays to transmit directional beams (e.g., for FR1). In some examples, base stations can use large antenna arrays to transmit directional beams (e.g., in combination with Figure 1 The analog beam can be used to exchange communications in FR2.

[0067] Shared physical channels (such as those used to transmit CSI-RS, SSB, TRS, etc.) can be transmitted using wide spatial beams, while data (e.g., PDSCH) can be transmitted using narrower, more focused beams, for example, to improve spectral efficiency. A shared physical channel can refer to a channel that is commonly transmitted by more than one UE. Figure 4 An example communication system 400 including a base station 402 and a UE 404 is illustrated. Figure 4 Illustrated is a wider beam 406 being used to transmit SSB / TRS, as opposed to being used to transmit PDSCH to the UE 404. Likewise, Figure 4 Illustrated is a wider beam 408 used to transmit the PDSCH compared to a narrower beam 410 used to transmit the CSI-RS from the base station 402 to the UE 404 .

[0068] The difference between the beams used for downlink transmission may cause a mismatch (or difference) between the received powers observed by the UE 404 on different channels. Figure 4 Similarly, the UE can receive SSB / TR with different received power than PDSCH. Figure 4 CSI-RS in.

[0069] The power difference may create challenges for the receiver control loop at UE 404. For example, automatic gain control (AGC), channel estimation, and / or demodulation reference signal (DMRS) estimation parameters (including delay spread, etc.) may be affected by the power difference between different downlink transmissions and may degrade the reception performance of the UE. Base station 402 may dynamically change the beam used to transmit the PDSCH, and the impact may be magnified when base station 402 performs rapid changes in the order of beams used for downlink transmissions. Base station 402 may also dynamically change the transmit power used to transmit downlink signals received by UE 404.

[0070] As an example, the AGC may use the history of reception information at the UE to receive the PDSCH. However, the AGC may rely on pilot signals and data signals having similar behavior. When a downlink signal on a beam (such as beam 406 or 408) is used to receive the PDSCH on beam 410, the AGC may not be accurate.

[0071] UE 404 may rely on a measurement of beam imbalance (e.g., between beam 410 and beam 406 and / or beam 408) to receive the PDSCH. However, the use of beam imbalance measurement may suffer from instability in transient use cases, e.g., when the base station changes beams, when the UE wakes up, etc.

[0072] To overcome instability, the UE may use the number of configured ports as an initial EIRP offset value. However, this initial EIRP value may be related to the CSI-RS, but not to other signals or other channels. The base station may dynamically change the transmit power between different downlink transmissions. As an example, the UE may know the transmit power difference between the CSI-RS and the PDSCH transmission. The UE may provide feedback about the CSI-RS, which is used by the base station 402 to determine precoding, spectral efficiency, etc., for example, in conjunction with the PDSCH transmission for the UE 404. The SSB or TRS transmitted by the base station 502 may have a wider beam than the CSI-RS port, so that the gain may be much higher. The higher gain may cause errors when receiving the PDSCH signal. Even with periodic CSI-RS, the maximum beam gain may result in throughput limitations due to the AGC noise floor.

[0073] To improve PDSCH reception at the UE 404, various aspects presented herein provide signaling from the base station to the UE indicating an expected EIRP power ratio between the first downlink transmission and the PDSCH transmission for the UE. Figure 5An example communication flow 500 between a base station 502 and a UE 504 is illustrated, including signaling EIRP relation information to the UE 504 that enables the UE 504 to better receive a PDSCH from the base station 502 .

[0074] The base station 502 may transmit a first downlink transmission 506 to the UE using a first spatial direction (e.g., a first beam). The first transmission 506 may include an SSB. The first transmission 506 may include a TRS. The first transmission 506 may include a CSI-RS. The first transmission 506 may include a first PDSCH.

[0075] At 510, base station 502 transmits an indication 510 of an EIRP relationship between first transmission 506 and PDSCH 512 to UE 504. Prior to transmitting indication 510, base station 502 determines an EIRP relationship between first transmission 506 and PDSCH 512. Base station 502 may determine an antenna gain value for UE 504 to receive PDSCH at 508.

[0076] The EIRP relationship indicated at 510 may be determined at least in part based on an antenna gain value of the base station (e.g., an antenna gain of the base station used for transmissions to the UE). For example, the EIRP relationship may be determined based on the antenna gain value, a first transmit power used for a first transmission, and a second transmit power used for the PDSCH. The base station 502 may determine the antenna gain value based on a precoding selected for the PDSCH. The base station 502 may determine the antenna gain value based on an antenna beam direction pattern used in transmissions to the UE 504. The base station 502 may determine the antenna gain value based on uplink channel measurements for communications from the UE 504. The base station 502 may determine the antenna gain value based on an estimated path loss for the UE 504. The base station 502 may determine the antenna gain value based on a combination of precoding, antenna beam direction pattern, uplink channel measurements, and / or estimated path loss.

[0077] For example, the base station 502 may indicate the EIRP relationship between the SSB and the PDSCH for the UE. As another example, the base station may indicate the EIRP relationship between the CSI-RS and the PDSCH for the UE. As another example, the base station may indicate the EIRP relationship between the TRS and the PDSCH for the UE. In another example, the base station may signal the EIRP change relative to the previous PDSCH transmission (e.g., the EIRP power ratio between the PDSCH transmission and the previous PDSCH transmission). The EIRP relationship between the two signals may be based on a combination of the transmit power ratio between the two signals (e.g., the "power offset" between the two downlink signals) and the antenna gain for the downlink transmission of the PDSCH 512 to the UE 504. The EIRP may take into account the antenna beam direction pattern of the base station and the selected precoding for the signal. A nominal power offset may be used between beams (e.g., between the SSB and the PDSCH or between the CSI-RS and the PDSCH). A maximum power offset may be used between beams (e.g., between the SSB and the PDSCH or between the CSI-RS and the PDSCH). As an example, the base station 502 may indicate a nominal EIRP relationship between the first transmission 506 and the PDSCH 512. The base station 502 may indicate a maximum EIRP relationship between the first transmission 506 and the PDSCH 512.

[0078] The base station 502 may transmit the indication 510 to the UE in any of a variety of ways. The base station 502 may signal the power offset / power ratio to the UE 504 in a DCI, such as by including it in the TCI state for the PDSCH. Alternatively, the base station 502 may signal the power offset / power ratio to the UE 504 in RRC signaling, such as by signaling a maximum EIRP value. In another example, the base station 502 may signal the EIRP relationship to the UE 504 using a combination of RRC signaling and DCI. For example, the DCI may dynamically indicate the actual EIRP relationship by reference to an index or other parameter indicated in the RRC signaling. In another example, the base station 502 may signal the power offset / power ratio to the UE 504 as part of the data payload in an earlier PDSCH 512. For example, the indication 510 may indicate that the EIRP relationship applies to both the PDSCH 512 and future PDSCHs. The indication may indicate a time or a time offset from which to begin applying the EIRP relationship to PDSCH transmissions for UE 504, since AGC parameters may have been set for the current PDSCH 512. Thus, the EIRP relationship may provide information that UE 504 uses to decode data in the next time slot.

[0079] As illustrated at 512, the base station 502 transmits the PDSCH to the UE 504 using a second directional beam (e.g., a second spatial direction). The second directional beam may be different from the first directional beam. Figure 4 As illustrated in , the second directional beam can be wider than the first directional beam. For example, the base station 502 can transmit the first transmission 506 and the PDSCH 512 in FR1, and the first directional beam can be wider than the second directional beam, for example, as in Figure 4 As explained in .

[0080] In an example, the first transmission 506 may include an SSB, and the EIRP relationship indicated at 510 may include an EIRP ratio between the SSB and the PDSCH 512 and / or an EIRP offset between the SSB and the PDSCH 512 .

[0081] In another example, the first transmission 506 may include a TRS, and the EIRP relationship indicated at 510 may include an EIRP ratio between the TRS and the PDSCH 512 or an EIRP offset between the TRS and the PDSCH 512 .

[0082] In another example, the first transmission 506 may include a previous PDSCH transmission, and the EIRP relationship indicated at 510 may include an EIRP ratio between the previous PDSCH transmission and the PDSCH 512 or an EIRP offset between the previous PDSCH transmission and the PDSCH 512. In this case, the EIRP signaling 510 may be part of the PDSCH payload. Thus, although the indication 510 of the EIRP relationship is illustrated using a separate line from the first downlink transmission 506 (e.g., the PDSCH), in some examples, the indication 510 may be included in the first downlink transmission 506 (e.g., in the previous PDSCH) or otherwise transmitted with the first downlink transmission 506.

[0083] In another example, the first transmission 506 may include a CSI-RS, and the EIRP relationship may include an EIRP ratio between the CSI-RS and the PDSCH 512 or an EIRP offset between the CSI-RS and the PDSCH 512 .

[0084] The UE 504 may use the indication of the EIRP relationship 510 to receive the PDSCH 512. As an example, as illustrated at 514, the UE 504 may use the EIRP relationship indicated by the base station 502 to perform automatic gain control to receive the PDSCH 512. As another example, as illustrated at 516, the UE 504 may use the EIRP relationship indicated by the base station 502 to perform channel estimation to receive the PDSCH 512.

[0085] Figure 6 600 is a flow chart of a method for wireless communication. The method may be performed by a base station or a component of a base station (e.g., base station 102, 180, 310, 402, 502; equipment 702 / 702'; processing system 814, which may include memory 376 and may be the entire base station 310 or a component of base station 310 (such as TX processor 316, RX processor 370, and / or controller / processor 375)). Optional aspects are illustrated with dashed lines. The method may help a base station assist a UE in receiving a PDSCH.

[0086] At 602, the base station transmits a first transmission using a first directional beam. The first transmission may correspond to, for example Figure 5 The first downlink transmission 506 in the first transmission may include SSB. The first transmission may include TRS. The first transmission may include CSI-RS. The first transmission may include a first PDSCH. The first transmission may use a different beam than the PDSCH transmission, for example, in combination with Figure 4 described.

[0087] At 606, the base station determines an EIRP relationship between the first transmission and the PDSCH for the UE. The EIRP relationship may include a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP being indicated in the DCI. The EIRP relationship may include a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP being indicated in the payload of the previous PDSCH. For example, the EIRP relationship may indicate that starting from a time or from a time offset, the base station will change the EIRP ratio to the indicated value for the PDSCH transmission. The EIRP relationship may include a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH. The EIRP relationship may be indicated to the UE in an RRC message.

[0088] As illustrated at 604, the base station may determine an antenna gain value for transmitting the PDSCH to the UE. The EIRP relationship may be determined at 606 based at least in part on the antenna gain value of the base station (e.g., the antenna gain of the base station used for transmissions to the UE). For example, the EIRP relationship may be determined based on the antenna gain value, a first transmit power used for the first transmission, and a second transmit power used for the PDSCH. The base station may determine the antenna gain value based on the precoding selected for the PDSCH. The base station may determine the antenna gain value based on the antenna beam direction pattern used in the transmission to the UE. The base station may determine the antenna gain value based on uplink channel measurements for communications from the UE. The base station may determine the antenna gain value based on an estimated path loss for the UE. The base station may determine the antenna gain value based on a combination of precoding, antenna beam direction pattern, uplink channel measurements, and / or estimated path loss.

[0089] At 608, the base station transmits an indication of the EIRP relationship between the first transmission and the PDSCH to the UE. Figure 5 An example is illustrated in which a base station 502 transmits an indication 510 of an EIRP relationship to a UE 504. The EIRP relationship may be indicated to the UE in RRC signaling. The EIRP relationship may include a dynamic value indicated to the UE in a DCI. The base station may provide an indication of the EIRP relationship between the first transmission and the PDSCH to enable the UE to set automatic gain control based on the indication of the EIRP relationship.

[0090] At 610, the base station transmits the PDSCH to the UE using a second directional beam. The first transmission and the PDSCH may be transmitted in FR1, and the first directional beam may be wider than the second directional beam, e.g., as in Figure 4 As explained in the example in .

[0091] In an example, the first transmission may include an SSB, and the EIRP relationship indicated at 608 may include an EIRP ratio between the SSB and the PDSCH and / or an EIRP offset between the SSB and the PDSCH.

[0092] In another example, the first transmission may include a TRS, and the EIRP relationship may include an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

[0093] In another example, the first transmission may include a previous PDSCH transmission, and the EIRP relationship includes an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

[0094] In another example, the first transmission may include a CSI-RS, and the EIRP relationship may include an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

[0095] Figure 7 7 is a conceptual data flow diagram 700 illustrating the flow of data between different devices / components in an example apparatus 702. The apparatus can be a base station or a component of a base station. The apparatus includes a receiving component 704 that receives uplink communications from a UE 750; and a transmitting component 706 that transmits downlink communications to the UE 750. The apparatus includes a first transmitting component 708 that is configured to transmit a first transmission using a first directional beam (e.g., as in conjunction with Figure 6 The apparatus may include an EIRP component 710 configured to determine an EIRP relationship between the first transmission and the PDSCH for the UE (e.g., as described in conjunction with Figure 6 606 in FIG). EIRP component 710 and / or transmission component 706 can be configured to transmit an indication of the EIRP relationship between the first transmission and the PDSCH to the UE (e.g., as described in conjunction with Figure 6 608 in ). The apparatus may include a PDSCH component 712 configured to transmit the PDSCH to the UE (e.g., via a transmission component 706) using a second directional beam (e.g., as described in conjunction with Figure 6 610 in ). The apparatus may include an antenna gain component 714 configured to determine an antenna gain value for the UE to receive the PDSCH, wherein the EIRP relationship is determined based on the antenna gain value of the base station, a first transmit power for the first transmission, and a second transmit power for the PDSCH (e.g., as combined with Figure 6 604 in the description).

[0096] The equipment may include performing Figure 6 The various blocks of the algorithm in the aforementioned flowchart and the Figure 5 In this way, Figure 6 Each box in the above flowchart and the Figure 5 The various aspects performed by the base station in the embodiment of the present invention may be performed by components and the equipment may include one or more of these components. These components may be one or more hardware components specifically configured to perform the process / algorithm, implemented by a processor configured to perform the process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0097] Figure 8FIG800 is a diagram illustrating an example of a hardware implementation of an apparatus 702′ employing a processing system 814. The processing system 814 may be implemented with a bus architecture generally represented by a bus 824. Depending on the specific application of the processing system 814 and the overall design constraints, the bus 824 may include any number of interconnecting buses and bridges. The bus 824 links together various circuits, including one or more processors and / or hardware components (represented by the processor 804, components 704, 706, 708, 710, 712, 714, and computer-readable medium / memory 806). The bus 824 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further.

[0098] The processing system 814 may be coupled to the transceiver 810. The transceiver 810 is coupled to one or more antennas 820. The transceiver 810 provides a means for communicating with various other devices via a transmission medium. The transceiver 810 receives signals from the one or more antennas 820, extracts information from the received signals, and provides the extracted information to the processing system 814 (specifically, the receiving component 704). In addition, the transceiver 810 receives information from the processing system 814 (specifically, the transmitting component 706) and generates signals to be applied to the one or more antennas 820 based on the received information. The processing system 814 includes a processor 804 coupled to a computer-readable medium / memory 806. The processor 804 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory 806. When executed by the processor 804, the software causes the processing system 814 to perform the various functions described above for any particular device. The computer-readable medium / memory 806 may also be used to store data manipulated by the processor 804 when executing the software. The processing system 814 further includes at least one of the components 704, 706, 708, 710, 712, 714. These components may be software components running in the processor 804, software components residing / stored in the computer-readable medium / memory 806, one or more hardware components coupled to the processor 804, or some combination thereof. The processing system 814 may be a component of the base station 310 and may include the memory 376 and / or at least one of the following: the TX processor 316, the RX processor 370, and the controller / processor 375. Alternatively, the processing system 814 may be the entire base station (e.g., see Figure 3 310).

[0099] In one configuration, apparatus 702 / 702' for wireless communication includes means for transmitting a first transmission using a first directional beam (e.g., transmitting component 706 and / or first transmitting component 708). Apparatus 702 / 702' may include means for determining an EIRP relationship between the first transmission and a PDSCH for a UE (e.g., EIRP component 710). Apparatus 702 / 702' may include means for transmitting an indication of the EIRP relationship between the first transmission and the PDSCH to the UE (e.g., EIRP component 710 and / or transmitting component 706). Apparatus 702 / 702' may include means for transmitting the PDSCH to the UE using a second directional beam (e.g., PDSCH component 712 and / or transmitting component 706). The apparatus 702 / 702' may include: means for determining an antenna gain value for the UE to receive the PDSCH, wherein the EIRP relationship is determined based on the antenna gain value of the base station, a first transmit power for the first transmission, and a second transmit power for the PDSCH (e.g., antenna gain component 714). The aforementioned means may be one or more components of the aforementioned components of the apparatus 702 and / or the processing system 814 of the apparatus 702' configured to perform the functions recited by the aforementioned means. As described above, the processing system 814 may include the TX processor 316, the RX processor 370, and the controller / processor 375. Thus, in one configuration, the aforementioned means may be the TX processor 316, the RX processor 370, and the controller / processor 375 configured to perform the functions recited by the aforementioned means.

[0100] Figure 9 Flowchart 900 is a method of wireless communication. The method may be performed by a UE or a component thereof (e.g., UE 104, 350, 404, 504; apparatus 1002 / 1002'; processing system 1114, which may include memory 360 and may be the entire UE 350 or a component thereof (such as TX processor 368, RX processor 356, and / or controller / processor 359)).

[0101] At 902, the UE receives a first transmission from a base station on a first directional beam. The first transmission may correspond to, for example Figure 5 The first downlink transmission 506 in the embodiment of the present invention may include an SSB, a TRS, a CSI-RS, or a first PDSCH.

[0102] At 904, the UE receives an indication of an EIRP relationship between the first transmission and the PDSCH from the base station. The EIRP relationship may include a dynamic EIRP ratio between the first transmission and the PDSCH received in a DCI. The EIRP relationship may include a dynamic EIRP ratio between the first transmission and the PDSCH received in a payload of a previous PDSCH. The EIRP relationship may include a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH received in an RRC message.

[0103] The EIRP relationship may be based on an antenna gain value of the base station used to transmit to the UE, a first transmit power used for the first transmission, and a second transmit power used for the PDSCH, for example, as combined with Figure 6 604 and 606, and as described in conjunction with Figure 5 Described. The EIRP relationship may be based at least in part on an antenna gain value of the base station (e.g., an antenna gain of the base station used for transmissions to the UE). For example, the EIRP relationship may be based on the antenna gain value, a first transmit power used for the first transmission, and a second transmit power used for the PDSCH. For example, the base station may determine the antenna gain value based on the precoding selected for the PDSCH. The base station may determine the antenna gain value based on the antenna beam direction pattern used in the transmission to the UE. The base station may determine the antenna gain value based on uplink channel measurements for communications from the UE. The base station may determine the antenna gain value based on an estimated path loss for the UE. The base station may determine the antenna gain value based on a combination of precoding, antenna beam direction pattern, uplink channel measurements, and / or estimated path loss.

[0104] At 906, the UE receives the PDSCH from the base station on a second directional beam using the EIRP relationship. A PDSCH transmission may correspond to, for example Figure 5 The first transmission and the PDSCH may be received in FR1, and the first directional beam may be wider than the second directional beam, e.g., as combined with Figure 4 As described. As an example, as illustrated at 908, the UE may use the EIRP relationship indicated by the base station to perform automatic gain control to receive the PDSCH. For example, the UE may set the automatic gain control based on the EIRP relationship indicated by the base station. As another example, as illustrated at 910, the UE may use the EIRP relationship indicated by the base station to perform channel estimation to receive the PDSCH.

[0105] In an example, the first transmission may include an SSB, and the EIRP relationship indicated at 608 may include an EIRP ratio between the SSB and the PDSCH and / or an EIRP offset between the SSB and the PDSCH.

[0106] In another example, the first transmission may include a TRS, and the EIRP relationship may include an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

[0107] In another example, the first transmission may include a previous PDSCH transmission, and the EIRP relationship may include an EIRP ratio between the previous PDSCH transmission and the future PDSCH or an EIRP offset between the previous PDSCH transmission and the future PDSCH transmission.

[0108] In another example, the first transmission may include a CSI-RS, and the EIRP relationship may include an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

[0109] Figure 10 1000 is a conceptual data flow diagram illustrating data flow between different devices / components in an example apparatus 1002. The apparatus may be a UE or a component of a UE. The apparatus includes a receiving component 1004 that receives downlink communications from a base station 1050, and a transmitting component 1006 that transmits uplink communications to the base station 1050. The apparatus includes a first transmitting component 1008 that is configured to receive a first transmission from the base station on a first directional beam (e.g., as in conjunction with Figure 9 The apparatus includes an EIRP component 1010 configured to receive an indication of an EIRP relationship between the first transmission and the PDSCH from the base station (e.g., as described in conjunction with Figure 9 The apparatus includes a PDSCH component 1012 configured to receive the PDSCH from the base station on a second directional beam using the EIRP relationship (e.g., as described in conjunction with Figure 9 The apparatus may include an AGC component 1014 that performs automatic gain control using the EIRP relationship indicated by the base station to receive the PDSCH (e.g., as described in conjunction with Figure 9 908 in ). The apparatus may include a channel estimation component 1016 configured to perform channel estimation using the EIRP relationship indicated by the base station to receive the PDSCH (e.g., as described in conjunction with Figure 9 910 described in ).

[0110] The equipment may include performing Figure 9The various blocks of the algorithm in the aforementioned flowchart and the Figure 5 504 in the UE 504 performs various aspects of the additional components. Figure 9 Each box in the above flowchart and the Figure 5 The various aspects performed by the UE 504 in the embodiment of the present invention may be performed by components and the equipment may include one or more of those components. These components may be one or more hardware components specifically configured to perform the described process / algorithm, implemented by a processor configured to perform the described process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0111] Figure 11 FIG100 is a diagram illustrating an example of a hardware implementation of an apparatus 1002′ employing a processing system 1114. The processing system 1114 may be implemented with a bus architecture generally represented by a bus 1124. Depending on the specific application and overall design constraints of the processing system 1114, the bus 1124 may include any number of interconnecting buses and bridges. The bus 1124 links various circuits together, including one or more processors and / or hardware components (represented by the processor 1104, components 1004, 1006, 1008, 1010, 1012, 1014, and computer-readable medium / memory 1106). The bus 1124 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further.

[0112] Processing system 1114 may be coupled to transceiver 1110. Transceiver 1110 is coupled to one or more antennas 1120. Transceiver 1110 provides a means for communicating with various other devices via a transmission medium. Transceiver 1110 receives signals from the one or more antennas 1120, extracts information from the received signals, and provides the extracted information to processing system 1114 (specifically, receiving component 1004). In addition, transceiver 1110 receives information from processing system 1114 (specifically, transmitting component 1006) and generates signals to be applied to one or more antennas 1120 based on the received information. Processing system 1114 includes processor 1104 coupled to computer-readable medium / memory 1106. Processor 1104 is responsible for general processing, including the execution of software stored on computer-readable medium / memory 1106. When executed by processor 1104, this software enables processing system 1114 to perform the various functions described above for any particular device. The computer-readable medium / memory 1106 may also be used to store data that is manipulated by the processor 1104 when executing software. The processing system 1114 further includes at least one of the components 1004, 1006, 1008, 1010, 1012, 1014. These components may be software components running in the processor 1104, software components resident / stored in the computer-readable medium / memory 1106, one or more hardware components coupled to the processor 1104, or some combination thereof. The processing system 1114 may be a component of the UE 350 and may include the memory 360 and / or at least one of the following: the TX processor 368, the RX processor 356, and the controller / processor 359. Alternatively, the processing system 1114 may be the entire UE (e.g., see Figure 3 of 350).

[0113] In one configuration, an apparatus 1002 / 1002′ for wireless communication includes means for receiving a first transmission on a first directional beam from a base station (e.g., receiving component 1004 and / or first transmission component 1008). The apparatus 1002 / 1002′ may include means for receiving an indication of an EIRP relationship between the first transmission and a PDSCH from the base station (e.g., receiving component 1004 and / or EIRP component 1010). The apparatus 1002 / 1002′ may include means for receiving the PDSCH on a second directional beam from the base station using the EIRP relationship (e.g., receiving component 1004 and / or PDSCH component 1012). The apparatus 1002 / 1002′ may include means for performing automatic gain control to receive the PDSCH using the EIRP relationship indicated by the base station (e.g., AGC component 1014). The apparatus 1002 / 1002' may include: a means for performing channel estimation using the EIRP relationship indicated by the base station to receive the PDSCH (e.g., a channel estimation component 1016). The aforementioned means may be one or more components of the aforementioned components of the apparatus 1002 and / or the processing system 1114 of the apparatus 1002' configured to perform the functions recited by the aforementioned means. As described above, the processing system 1114 may include the TX processor 368, the RX processor 356, and the controller / processor 359. Thus, in one configuration, the aforementioned means may be the TX processor 368, the RX processor 356, and the controller / processor 359 configured to perform the functions recited by the aforementioned means.

[0114] The following examples are merely illustrative, and aspects thereof may be combined with aspects of other embodiments or teachings described herein without limitation.

[0115] Example 1 is a method for wireless communication at a base station, comprising: transmitting a first transmission using a first directional beam; determining an EIRP relationship between the first transmission and a PDSCH for a UE; transmitting an indication of the EIRP relationship between the first transmission and the PDSCH to the UE; and transmitting the PDSCH to the UE using a second directional beam.

[0116] In Example 2, the method of Example 1 further includes: determining an antenna gain value for the UE to receive the PDSCH, wherein the EIRP relationship is determined based on the antenna gain value of the base station, the first transmit power for the first transmission, and the second transmit power for the PDSCH.

[0117] In Example 3, the method of Example 1 or Example 2 further includes: the base station determines the antenna gain value based on at least one of: selecting precoding for the PDSCH, the antenna beam pattern used in transmission to the UE, the estimated path loss for the UE, or uplink channel measurement for communication from the UE.

[0118] In Example 4, the method of any one of Examples 1-3 further includes the first transmission and the PDSCH being transmitted in FR1, and wherein the first directional beam is wider than the second directional beam.

[0119] In Example 5, the method of any one of Examples 1-4 further includes: the first transmission includes a synchronization signal block (SSB), and the EIRP relationship includes an EIRP ratio between the SSB and the PDSCH or an EIRP offset between the SSB and the PDSCH.

[0120] In Example 6, the method of any one of Examples 1-5 further includes the first transmission comprising a tracking reference signal (TRS), and the EIRP relationship comprising an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

[0121] In Example 7, the method of any one of Examples 1-6 further includes the first transmission comprising a previous PDSCH transmission, and the EIRP relationship comprising an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

[0122] In Example 8, the method of any one of Examples 1-7 further includes: the first transmission includes a CSI-RS, and the EIRP relationship includes an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

[0123] In Example 9, the method of any one of Examples 1-8 further includes: the EIRP relationship comprising a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being indicated in the DCI.

[0124] In Example 10, the method of any one of Examples 1-9 further includes: the EIRP relationship comprising a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio indicated in a payload of a previous PDSCH.

[0125] In Example 11, the method of any one of Examples 1-10 further includes: the EIRP relationship comprising a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH, the maximum EIRP ratio or the maximum EIRP offset being indicated in an RRC message.

[0126] In Example 12, the method of any one of Examples 1-11 further includes the base station providing an indication of the EIRP relationship between the first transmission and the PDSCH to enable the UE to set automatic gain control based on the indication of the EIRP relationship.

[0127] Example 13 is a device comprising one or more processors and one or more memories in electronic communication with the one or more processors, the one or more memories storing instructions executable by the one or more processors to cause the device to implement a method as in any of Examples 1-12.

[0128] Example 14 is a system or apparatus comprising means for implementing the method of any of Examples 1-12 or implementing the apparatus of any of Examples 16-30.

[0129] Example 15 is a non-transitory computer-readable medium storing instructions executable by one or more processors to cause the one or more processors to implement the method as in any of Examples 1-12.

[0130] Example 16 is a wireless communication conducted at a UE, comprising: receiving a first transmission from a base station on a first directional beam; receiving an indication of an EIRP relationship between the first transmission and a PDSCH from the base station; and receiving the PDSCH from the base station on a second directional beam using the EIRP relationship.

[0131] In Example 17, the method of Example 16 further includes performing automatic gain control using the EIRP relationship indicated by the base station to receive the PDSCH.

[0132] In Example 18, the method of Example 16 or Example 17 further includes: the UE setting automatic gain control based on the EIRP relationship indicated by the base station.

[0133] In Example 19, the method of any one of Examples 16-18 further includes performing channel estimation using the EIRP relationship indicated by the base station to receive the PDSCH.

[0134] In Example 20, the method of any one of Examples 16-19 further includes the EIRP relationship being based on an antenna gain value of the base station used for transmitting to the UE, a first transmit power for the first transmission, and a second transmit power for the PDSCH.

[0135] In Example 21, the method of any one of Examples 16-20 further includes: the antenna gain value is based on at least one of: precoding used for the PDSCH, an antenna beam pattern used in transmission to the UE, an estimated path loss for communication with the UE, or an uplink channel measurement for the UE.

[0136] In Example 22, the method of any one of Examples 16-21 further includes the first transmission and the PDSCH being received in FR1, and wherein the first directional beam is wider than the second directional beam.

[0137] In Example 23, the method of any one of Examples 16-22 further includes: the first transmission includes an SSB, and the EIRP relationship includes an EIRP ratio between the SSB and the PDSCH or an EIRP offset between the SSB and the PDSCH.

[0138] In Example 24, the method of any one of Examples 16-23 further includes the first transmission comprising a TRS, and the EIRP relationship comprising an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

[0139] In Example 25, the method of any one of Examples 16-24 further includes the first transmission comprising a previous PDSCH transmission, and the EIRP relationship comprising an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

[0140] In Example 26, the method of any one of Examples 16-25 further includes: the first transmission includes a CSI-RS, and the EIRP relationship includes an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

[0141] In Example 27, the method of any one of Examples 16-26 further includes the EIRP relationship comprising a dynamic EIRP ratio between the first transmission received in the DCI and the PDSCH.

[0142] In Example 28, the method of any one of Examples 16-27 further includes the EIRP relationship comprising a dynamic EIRP ratio between the first transmission received in a payload of a previous PDSCH and the PDSCH.

[0143] In Example 29, the method of any one of Examples 16-28 further includes the EIRP relationship comprising a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH received in an RRC message.

[0144] Example 30 is a device comprising one or more processors and one or more memories in electronic communication with the one or more processors, the one or more memories storing instructions executable by the one or more processors to cause the device to implement a method as in any of Examples 16-29.

[0145] Example 31 is a system or apparatus comprising means for implementing the method as in any of Examples 16-29 or implementing the apparatus as in any of Examples 16-30.

[0146] Example 32 is a non-transitory computer-readable medium storing instructions executable by one or more processors to cause the one or more processors to implement the method as in any of Examples 16-29.

[0147] It should be understood that the specific order or hierarchy of the blocks in the disclosed process / flowcharts is an illustration of an example approach. It should be understood that the specific order or hierarchy of the blocks in these process / flowcharts can be rearranged based on design preferences. In addition, some blocks can be combined or omitted. The accompanying method claims present the elements of the various blocks in an example order and are not meant to be limited to the specific order or hierarchy presented.

[0148] The preceding description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the universal principles defined herein may be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown herein, but rather should be granted the full scope consistent with the language of the claims, wherein singular references to elements are not intended to mean "one and only one," but rather "one or more," unless otherwise specified. The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" is not necessarily to be construed as superior to or superior to other aspects. Unless otherwise specifically stated, the term "some" refers to one or more. Combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" include any combination of A, B, and / or C, and may include multiple A, multiple B, or multiple C. Specifically, combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B, and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, wherein any such combination may include one or more members of A, B, or C. All structural and functional equivalents of the various aspects described throughout this disclosure to those of ordinary skill in the art now or hereafter known are expressly incorporated herein by reference and are intended to be encompassed by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is expressly recited in the claims. The terms "module," "mechanism," "element," "device," etc. are not intended to be a substitute for the term "means." As such, no claim element should be construed as means-plus-function unless the element is expressly recited using the phrase "means for."

Claims

1. A method for wireless communication at a network node, comprising: transmitting a first transmission using a first directional beam; determining an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH) for a user equipment (UE), wherein the EIRP relationship comprises an EIRP ratio between the first transmission and the PDSCH or an EIRP offset between the first transmission and the PDSCH; transmitting an indication of the EIRP relationship between the first transmission and the PDSCH, wherein the indication of the EIRP relationship is transmitted together with or after the first transmission; and The PDSCH is transmitted using a second directional beam.

2. The method of claim 1, further comprising: An antenna gain value for the UE to receive the PDSCH is determined, wherein the EIRP relationship is determined based on the antenna gain value of the network node, a first transmit power for the first transmission, and a second transmit power for the PDSCH.

3. The method according to claim 2, wherein: The network node determines the antenna gain value based on at least one of the following: selecting a precoding for the PDSCH, For the antenna beam pattern used in the transmission of the UE, the estimated path loss for the UE, or Uplink channel measurements for communications from the UE.

4. The method according to claim 1, wherein The first transmission and the PDSCH are transmitted in frequency range 1 (FR1), and wherein the first directional beam is wider than the second directional beam.

5. The method according to claim 1, wherein The first transmission includes a synchronization signal block (SSB), and the EIRP relationship includes an EIRP ratio between the SSB and the PDSCH or an EIRP offset between the SSB and the PDSCH.

6. The method of claim 1, wherein: The first transmission includes a tracking reference signal (TRS), and the EIRP relationship includes an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

7. The method of claim 1, wherein: The first transmission includes a previous PDSCH transmission, and the EIRP relationship includes an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

8. The method of claim 1, wherein: The first transmission includes a channel state information reference signal (CSI-RS), and the EIRP relationship includes an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

9. The method of claim 1, wherein: The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being indicated in downlink control information (DCI).

10. The method of claim 1, wherein: The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being indicated in a payload of a previous PDSCH.

11. The method of claim 1, wherein: The EIRP relationship includes a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH, the maximum EIRP ratio or the maximum EIRP offset being indicated in a radio resource control (RRC) message.

12. The method of claim 1, wherein: The network node provides an indication of the EIRP relationship between the first transmission and the PDSCH to enable the UE to set automatic gain control based on the indication of the EIRP relationship.

13. An apparatus for wireless communication at a network node, comprising: Memory; as well as at least one processor coupled to the memory, the memory and the at least one processor being configured to: transmitting a first transmission using a first directional beam; determining an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH) for a user equipment (UE), wherein the EIRP relationship comprises an EIRP ratio between the first transmission and the PDSCH or an EIRP offset between the first transmission and the PDSCH; transmitting an indication of the EIRP relationship between the first transmission and the PDSCH, wherein the indication of the EIRP relationship is transmitted together with or after the first transmission; and The PDSCH is transmitted using a second directional beam.

14. The apparatus of claim 13, wherein the memory and the at least one processor are further configured to: An antenna gain value for transmitting the PDSCH is determined, wherein the EIRP relationship is determined based on the antenna gain value of the network node, a first transmit power for the first transmission, and a second transmit power for the PDSCH.

15. The apparatus of claim 14, wherein: The memory and the at least one processor are further configured to determine the antenna gain value based on at least one of: selecting a precoding for the PDSCH, For the antenna beam pattern used in the transmission of the UE, the estimated path loss for the UE, or Uplink channel measurements for communications from the UE.

16. The apparatus of claim 13, wherein: The first transmission and the PDSCH are transmitted in frequency range 1 (FR1), and wherein the first directional beam is wider than the second directional beam.

17. The apparatus of claim 13, wherein: The first transmission includes a synchronization signal block (SSB), and the EIRP relationship includes an EIRP ratio between the SSB and the PDSCH or an EIRP offset between the SSB and the PDSCH.

18. The apparatus of claim 13, wherein: The first transmission includes a tracking reference signal (TRS), and the EIRP relationship includes an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

19. The apparatus of claim 13, wherein: The first transmission includes a previous PDSCH transmission, and the EIRP relationship includes an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

20. The apparatus of claim 13, wherein: The first transmission includes a channel state information reference signal (CSI-RS), and the EIRP relationship includes an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

21. The apparatus of claim 13, wherein: The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being indicated in downlink control information (DCI).

22. The apparatus of claim 13, wherein: The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being indicated in a payload of a previous PDSCH.

23. The apparatus of claim 13, wherein: The EIRP relationship includes a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH, the maximum EIRP ratio or the maximum EIRP offset being indicated in a radio resource control (RRC) message.

24. The apparatus of claim 13, wherein: The memory and the at least one processor are further configured to provide an indication of the EIRP relationship between the first transmission and the PDSCH to enable the UE to set automatic gain control based on the indication of the EIRP relationship.

25. A method of wireless communication at a user equipment (UE), comprising: receiving a first transmission on a first directional beam; receiving an indication of an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH), wherein the EIRP relationship comprises an EIRP ratio between the first transmission and the PDSCH or an EIRP offset between the first transmission and the PDSCH, and wherein the indication of the EIRP relationship is received together with or after the first transmission; and The PDSCH is received on a second directional beam using the EIRP relationship.

26. The method of claim 25, further comprising: Automatic gain control is performed using the EIRP relationship indicated by the network node to receive the PDSCH.

27. The method of claim 26, wherein: The UE sets the automatic gain control based on the EIRP relationship indicated by a network node.

28. The method of claim 25, further comprising: Channel estimation is performed using the EIRP relationship indicated by the network node to receive the PDSCH.

29. The method of claim 25, wherein: The EIRP relationship is determined based on an antenna gain value of a network node used for transmission, a first transmit power used for the first transmission, and a second transmit power used for the PDSCH.

30. The method of claim 29, wherein: The antenna gain value is based on at least one of: precoding for the PDSCH, For the antenna beam pattern used in the transmission of the UE, an estimated path loss for communication with the UE, or Uplink channel measurement for the UE.

31. The method of claim 25, wherein: The first transmission and the PDSCH are transmitted in frequency range 1 (FR1), and wherein the first directional beam is wider than the second directional beam.

32. The method of claim 25, wherein: The first transmission includes a synchronization signal block (SSB), and the EIRP relationship includes an EIRP ratio between the SSB and the PDSCH or an EIRP offset between the SSB and the PDSCH.

33. The method of claim 25, wherein: The first transmission includes a tracking reference signal (TRS), and the EIRP relationship includes an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

34. The method of claim 25, wherein: The first transmission includes a previous PDSCH transmission, and the EIRP relationship includes an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

35. The method of claim 25, wherein: The first transmission includes a channel state information reference signal (CSI-RS), and the EIRP relationship includes an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

36. The method of claim 25, wherein: The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio received in downlink control information (DCI).

37. The method of claim 25, wherein: The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being received in a payload of a previous PDSCH.

38. The method of claim 25, wherein: The EIRP relationship includes a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH, the maximum EIRP ratio and the maximum EIRP offset being received in a radio resource control (RRC) message.

39. An apparatus for wireless communication at a user equipment (UE), comprising: Memory; as well as at least one processor coupled to the memory, the memory and the at least one processor being configured to: receiving a first transmission on a first directional beam; receiving an indication of an equivalent isotropically radiated power (EIRP) relationship between the first transmission and a physical downlink shared channel (PDSCH), wherein the EIRP relationship comprises an EIRP ratio between the first transmission and the PDSCH or an EIRP offset between the first transmission and the PDSCH, and wherein the indication of the EIRP relationship is received together with or after the first transmission; and The PDSCH is received on a second directional beam using the EIRP relationship.

40. The apparatus of claim 39, wherein the memory and the at least one processor are further configured to: Automatic gain control is performed using the EIRP relationship indicated by the network node to receive the PDSCH.

41. The apparatus of claim 40, wherein the memory and the at least one processor are further configured to set the automatic gain control based on the EIRP relationship indicated by a network node.

42. The apparatus of claim 39, wherein the memory and the at least one processor are further configured to: Channel estimation is performed using the EIRP relationship indicated by the network node to receive the PDSCH.

43. The apparatus of claim 39, wherein: The EIRP relationship is determined based on an antenna gain value of a network node used for transmission, a first transmit power used for the first transmission, and a second transmit power used for the PDSCH.

44. The apparatus of claim 43, wherein: The antenna gain value is based on at least one of: precoding for the PDSCH, For the antenna beam pattern used in the transmission of the UE, an estimated path loss for communication with the UE, or Uplink channel measurement for the UE.

45. The apparatus of claim 39, wherein: The first transmission and the PDSCH are transmitted in frequency range 1 (FR1), and wherein the first directional beam is wider than the second directional beam.

46. ​​The apparatus of claim 39, wherein: The first transmission includes a synchronization signal block (SSB), and the EIRP relationship includes an EIRP ratio between the SSB and the PDSCH or an EIRP offset between the SSB and the PDSCH.

47. The apparatus of claim 39, wherein: The first transmission includes a tracking reference signal (TRS), and the EIRP relationship includes an EIRP ratio between the TRS and the PDSCH or an EIRP offset between the TRS and the PDSCH.

48. The apparatus of claim 39, wherein The first transmission includes a previous PDSCH transmission, and the EIRP relationship includes an EIRP ratio between the previous PDSCH transmission and the PDSCH or an EIRP offset between the previous PDSCH transmission and the PDSCH.

49. The apparatus of claim 39, wherein: The first transmission includes a channel state information reference signal (CSI-RS), and the EIRP relationship includes an EIRP ratio between the CSI-RS and the PDSCH or an EIRP offset between the CSI-RS and the PDSCH.

50. The apparatus of claim 39, wherein The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio received in downlink control information (DCI).

51. The apparatus of claim 39, wherein The EIRP relationship includes a dynamic EIRP ratio between the first transmission and the PDSCH, the dynamic EIRP ratio being received in a payload of a previous PDSCH.

52. The apparatus of claim 39, wherein: The EIRP relationship includes a maximum EIRP ratio between the first transmission and the PDSCH or a maximum EIRP offset between the first transmission and the PDSCH, the maximum EIRP ratio and the maximum EIRP offset being received in a radio resource control (RRC) message.

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