Synchronization signal block mapping across different frequencies

Abstract

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a mapping between a set of synchronization signal block resources and a set of operating frequencies within a frequency band. The UE may identify a parameter of the synchronization signal block based on an operating frequency set for communicating the synchronization signal block and a beam direction for communicating the synchronization signal block. The parameter may include an index of the synchronization signal block. The UE may monitor the synchronization signal block based on the identified parameter.

Description

[0001] This divisional application is a divisional application of the PCT national phase patent application with a PCT international application date of July 9, 2021, national application number 202180049173.0, and titled “Mapping of synchronization signal blocks across different frequencies”. Technical Field

[0002] The following relates generally to wireless communications, and more particularly to synchronization signal block (SSB) mapping across different frequencies. Background Art

[0003] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems, which may be referred to as NR systems. These systems may employ various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM).

[0004] A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication for multiple communication devices, which may also be referred to as user equipment (UE). Some wireless communication systems may use one or more antenna subarrays to support beamformed communications to provide transmit diversity and receive diversity. Summary of the invention

[0005] The described techniques relate to improved methods, systems, devices, and apparatuses that support synchronization signal block (SSB) mapping across different frequencies. Generally, the described techniques provide for dynamically mapping SSB resources as a function of frequency and reporting the mapping.

[0006] A method of wireless communication at a UE is described. The method may include: receiving a mapping between a SSB resource set and an operating frequency set within a frequency band; identifying parameters of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB; and monitoring the SSB based on the identified parameters.

[0007] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: receive a mapping between an SSB resource set and an operating frequency set within a frequency band; identify a parameter of the SSB based on an operating frequency in the operating frequency set for delivering the SSB and a direction of a beam for delivering the SSB; and monitor the SSB based on the identified parameter.

[0008] Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving a mapping between a SSB resource set and an operating frequency set within a frequency band; identifying parameters of the SSB based on an operating frequency in the operating frequency set for delivering the SSB and a direction of a beam for delivering the SSB; and monitoring the SSB based on the identified parameters.

[0009] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive a mapping between a SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for delivering the SSB and a direction of a beam for delivering the SSB; and monitor the SSB based on the identified parameters.

[0010] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, parameters for identifying an SSB may include operations, features, apparatus, or instructions for the following actions: identifying an index of an SSB within an SSB set based on frequency band and direction, wherein monitoring the SSB may be based on identifying the index.

[0011] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying an operating frequency in an operating frequency set for transmitting SSB, wherein the identification parameter may be based on identifying the operating frequency in the operating frequency set.

[0012] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying a frequency band and a direction of a beam based on a receive map, wherein an identification parameter may be based on identifying the frequency band and direction.

[0013] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, receiving a mapping may include operations, features, apparatus, or instructions for the following actions: receiving a mapping from a base station, the mapping further including an association between a set of operating frequencies within a frequency band and parameters of an SSB delivered using the set of operating frequencies included in the mapping.

[0014] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the parameters include an SSB index associated with a set of operating frequencies within a frequency band.

[0015] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: transmitting a message indicating a mapping to a base station, wherein the mapping further includes an association between a set of operating frequencies within a frequency band and parameters of an SSB delivered using the set of operating frequencies included in the mapping.

[0016] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: transmitting an indication of an operating frequency in an operating frequency set that can be used to report beam measurements, wherein the indication may be included in a message.

[0017] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: identifying a reference signal resource set associated with the SSB in a frequency band based on a mapping and an operating frequency, and conveying information using the reference signal resource set.

[0018] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for determining that an operating frequency in an operating frequency set satisfies a criterion, wherein a reference signal resource set may be associated with the operating frequency.

[0019] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying, based on a received mapping, a first gain associated with a first operating frequency and a direction of a beam in an operating frequency set and a second gain associated with a second operating frequency and a second direction of a second beam in the operating frequency set, wherein an identification parameter may be based on identifying the first gain and the second gain.

[0020] Some examples of methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting a request for a mapping, wherein receiving the mapping may be based on transmitting the request.

[0021] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying, based on a received mapping, an offset between a parameter of an SSB transmitted using a first operating frequency of a frequency band relative to a second parameter of a second SSB transmitted using a second operating frequency of the frequency band, wherein monitoring the SSB can be based on identifying the offset.

[0022] Some examples of methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for communicating information using an operating frequency in the set of operating frequencies based on monitoring the SSB.

[0023] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, a mapping may be included in a system information block (SIB), a master information block (MIB), radio resource control (RRC) signaling, downlink control information (DCI), or a combination thereof, and the mapping includes indications of one or more SSB groups and one or more SSB sets in one or more SSB groups.

[0024] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, a frequency band may be used to deliver SSBs on a first set of SSB resource sets.

[0025] A method of wireless communication at a base station is described. The method may include: transmitting a mapping between a SSB resource set and an operating frequency set within a frequency band; identifying parameters of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB; and transmitting the SSB based on the identified parameters.

[0026] An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to: transmit a mapping between an SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for transmitting the SSB and a direction of a beam for transmitting the SSB; and transmit the SSB based on the identified parameters.

[0027] Another apparatus for wireless communication at a base station is described. The apparatus may include means for transmitting a mapping between a SSB resource set and an operating frequency set within a frequency band; identifying parameters of the SSB based on an operating frequency in the operating frequency set for delivering the SSB and a direction of a beam for delivering the SSB; and transmitting the SSB based on the identified parameters.

[0028] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit a mapping between a SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB; and transmit the SSB based on the identified parameters.

[0029] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, parameters for identifying an SSB may include operations, features, apparatus, or instructions for the following actions: identifying an index of an SSB within an SSB set based on frequency band and direction, wherein transmitting the SSB may be based on identifying the index.

[0030] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying an operating frequency in an operating frequency set for transmitting SSB, wherein the identification parameter may be based on identifying the operating frequency in the operating frequency set.

[0031] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for identifying a frequency band and a direction associated with a beam based on a mapping, wherein an identification parameter may be based on identifying the frequency band and direction.

[0032] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, transmitting a mapping may include operations, features, apparatus, or instructions for transmitting a mapping to a user equipment, the mapping further including an association between a set of operating frequencies within a frequency band and parameters of an SSB delivered using the set of operating frequencies included in the mapping.

[0033] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the parameters include an SSB index associated with a set of operating frequencies within a frequency band.

[0034] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving a message indicating a mapping from a user equipment, wherein the mapping further includes an association between a set of operating frequencies within a frequency band and parameters of an SSB delivered using the set of operating frequencies included in the mapping.

[0035] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving an indication of an operating frequency in an operating frequency set that can be used to report beam measurements, wherein the indication may be included in a message.

[0036] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying, based on a mapping, a first gain associated with a first operating frequency and a direction of a beam in an operating frequency set and a second gain associated with a second operating frequency and a second direction of a second beam in the operating frequency set, wherein an identification parameter may be based on identifying the first gain and the second gain.

[0037] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving a request for a mapping from a user equipment, wherein transmitting the mapping may be based on transmitting the request.

[0038] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for identifying an offset between a parameter of an SSB transmitted using a first operating frequency of a frequency band relative to a second parameter of a second SSB transmitted using a second operating frequency of the frequency band, wherein the transmit mapping may be based on identifying the offset.

[0039] Some examples of methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for communicating information using an operating frequency in the set of operating frequencies based on monitoring the SSB.

[0040] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, a mapping may be included in a SIB, a MIB, RRC signaling, a DCI, or a combination thereof, and the mapping includes indications of one or more SSB groups and one or more SSB sets in one or more SSB groups.

[0041] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, a frequency band may be used to deliver SSBs on a first set of SSB resource sets. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 An example of a wireless communication system supporting synchronization signal block (SSB) mapping across different frequencies in accordance with aspects of the present disclosure is illustrated.

[0043] Figure 2 An example of a wireless communication system supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is illustrated.

[0044] Figure 3 Examples of antenna gain supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure are illustrated.

[0045] Figure 4 An example of a process flow that supports SSB mapping across different frequencies in accordance with aspects of the present disclosure is illustrated.

[0046] Figure 5 and 6 A block diagram of a device supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown.

[0047] Figure 7 A block diagram of a communication manager supporting SSB mapping across different frequencies is shown in accordance with aspects of the present disclosure.

[0048] Figure 8 A diagram of a system including a device supporting SSB mapping across different frequencies is shown in accordance with aspects of the present disclosure.

[0049] Fig. 9 and 10 A block diagram of a device supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown.

[0050] Fig.11 A block diagram of a communication manager supporting SSB mapping across different frequencies is shown in accordance with aspects of the present disclosure.

[0051] Fig.12 A diagram of a system including a device supporting SSB mapping across different frequencies is shown in accordance with aspects of the present disclosure.

[0052] Figures 13 to 15 A flow chart illustrating a method of supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0053] Some wireless communication systems may support beamformed transmissions in different frequency bands, such as FR1 (410 MHz–7.125 GHz), FR2 (24.25 GHz–52.6 GHz), FR 4 (52.6 GHz–114.25 GHz), FR3 (7.125 GHz–24.25 GHz), or a combination thereof, to take advantage of improved performance, such as increased data rates and increased beamforming gain. In some cases, an ultra-wide bandwidth range (e.g., 14 GHz wide) at an upper millimeter wave band (e.g., FR4) may be used across multiple operating frequency sets (e.g., 57 GHz to 71 GHz) within the band, which may provide performance and beamforming gain. For example, in some devices, a single radio frequency (RF) chain may be used within an ultra-wide bandwidth range of an upper millimeter wave band (e.g., FR4 band). However, for beamformed transmissions within an ultra-wide bandwidth range of an upper millimeter wave band, performance (e.g., array gain performance relative to beam direction) may vary between different operating frequencies (e.g., carrier frequencies). For example, the variation between different operating frequencies in the FR4 band may be more significant than the variation between different operating frequencies in the FR1 band or the FR2 band. Accordingly, in beamformed transmissions in the upper mmWave bands, an SSB associated with (e.g., pointed to, mapped to) a given SSB resource set at a first operating frequency may be associated with a different SSB resource set (e.g., the SSBs may drift apart as a function of frequency) when operating at a second operating frequency.

[0054] Techniques for mapping SSB resources based on an operating frequency used within a frequency band and an angle of a beamformed transmission are described. A user equipment (UE) may receive an indication including a mapping that associates one or more sets of SSB resources with an operating frequency within a frequency band (e.g., FR4) and a direction of a beamformed transmission. In some examples, the indication may be received in a system information block (SIB), a master information block (MIB), a radio resource control (RRC) signaling, and / or downlink control information (DCI). The UE may identify an operating frequency and direction associated with a beam used to convey information based on receiving the indication. In some aspects, the UE may identify parameters (e.g., SSB indexes) of SSBs delivered using a frequency band and direction associated with a beam. In some examples, for a given operating frequency in a frequency band and a direction associated with a beam, the UE may identify corresponding parameters (e.g., SSB indexes).

[0055] Various aspects of the present disclosure are initially described in the context of a wireless communication system. Examples of processes and signaling exchanges that support SSB mapping across different frequencies are subsequently described. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow charts related to SSB mapping across different frequencies.

[0056] Figure 1 An example of a wireless communication system 100 supporting SSB mapping across different frequencies in accordance with various aspects of the present disclosure is illustrated. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or a new radio (NR) network. In some cases, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, or communications with low-cost and low-complexity devices.

[0057] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network equipment (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

[0058] Each base station 105 may be associated with a particular geographic coverage area 110 in which it supports communications with various UEs 115. Each base station 105 may provide communications coverage for a respective geographic coverage area 110 via a communications link 125, and the communications link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communications link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0059] The geographic coverage area 110 of the base station 105 may be divided into sectors that constitute a portion of the geographic coverage area 110, and each sector may be associated with a cellular cell. For example, each base station 105 may provide communication coverage for a macrocellular cell, a small cellular cell, a hotspot, or other types of cellular cells, or various combinations thereof. In some examples, the base station 105 may be mobile and therefore provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and the overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network, in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

[0060] The term "cell" refers to a logical communication entity used to communicate with base station 105 (e.g., on a carrier), and may be associated with an identifier to distinguish adjacent cells operating via the same or different carriers (e.g., physical cell identifier (PCID), virtual cell identifier (VCID)). In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types that may provide access to different types of devices (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or others). In some cases, the term "cell" may refer to a portion of a geographic coverage area 110 (e.g., a sector) on which the logical entity operates.

[0061] Each UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. UE 115 can also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, wherein "device" can also be referred to as a unit, a station, a terminal, or a client. UE 115 can also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 can also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which can be implemented in various items (such as electrical appliances, vehicles, meters, etc.).

[0062] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application that may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0063] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving "deep sleep" mode when not engaged in active communications, or operating over a limited bandwidth (e.g., in accordance with narrowband communications). In some cases, UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0064] In some cases, UE 115 may also be able to communicate directly with other UE 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more UEs in a group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in the group may be outside the geographic coverage area 110 of the base station 105, or may not be able to receive transmissions from the base station 105 for other reasons. In some cases, each group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between each UE 115 without involving the base station 105.

[0065] Each base station 105 can communicate with the core network 130 and with each other. For example, the base station 105 can interface with the core network 130 via a backhaul link 132 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 can communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130) on a backhaul link 134 (e.g., via X2, Xn, or other interfaces).

[0066] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access layer (e.g., control plane) functions such as mobility, authentication, and bearer management of UEs 104 served by base stations 105 associated with the EPC. User IP packets may be delivered through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to network operator IP services. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet switched (PS) streaming services.

[0067] At least some network devices (such as base stations 105) may include subcomponents, such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with each UE 115 through a number of other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or merged into a single network device (e.g., base station 105).

[0068] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths are in the range of from about 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features. However, these waves may penetrate various structures sufficiently for macro cells to provide services to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 km) compared to transmission using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0069] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as centimeter bands. The SHF region includes frequency bands that may be opportunistically used by devices that may be able to tolerate interference from other users, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band.

[0070] The wireless communication system 100 may also operate in the extremely high frequency (EHF) division of the spectrum (e.g., from 30 GHz to 300 GHz), which is also referred to as the millimeter band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antenna of the corresponding device may be even smaller and more closely spaced than the UHF antenna. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency divisions, and the use of frequency bands specified across these frequency divisions may differ by country or regulatory agency.

[0071] In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as a 5 GHz ISM band). When operating in an unlicensed radio frequency spectrum band, wireless devices (such as base stations 105 and UE 115) may employ a listen-before-talk (LBT) procedure to ensure that the frequency channel is clear before transmitting data. In some cases, operations in unlicensed bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed bands. Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum may be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of the two.

[0072] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., the base station 105) and a receiving device (e.g., the UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. Each of these multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0073] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105 or a UE 115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying a particular amplitude and phase shift to the signal carried via each antenna element associated with the device. The adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0074] In one example, the base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions, which may include a signal being transmitted according to different beamforming weight sets associated with different transmission directions. The transmissions in different beam directions may be used (e.g., by the base station 105 or a receiving device, such as the UE 115) to identify the beam direction used by the base station 105 for subsequent transmission and / or reception.

[0075] Some signals, such as data signals associated with a particular recipient device, may be transmitted by base station 105 in a single beam direction (e.g., a direction associated with a recipient device, such as UE 115). In some examples, a beam direction associated with transmissions along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signals received by it with the highest signal quality or other acceptable signal quality. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction used by UE 115 for subsequent transmission or reception) or for transmitting signals in a single direction (e.g., for transmitting data to a recipient device).

[0076] A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receive beams when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). The single receive beam may be aligned on a beam direction determined at least in part based on listening according to different receive beam directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio, or other acceptable signal quality based at least in part on listening according to multiple beam directions).

[0077] In some cases, the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays that may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some cases, the antennas or antenna arrays associated with a base station 105 may be located at different geographic locations. A base station 105 may have an antenna array having several rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with a UE 115. Similarly, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0078] In some cases, the wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The media access control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use a hybrid automatic repeat request (HARQ) to provide retransmission of the MAC layer, thereby improving link efficiency. In the control plane, the radio resource control (RRC) protocol layer may provide the establishment, configuration and maintenance of an RRC connection for a radio bearer that supports user plane data between UE115 and base station 105 or core network 130. At the physical layer, transport channels may be mapped to physical channels.

[0079] In some cases, UE 115 and base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput of the MAC layer in poor radio conditions (e.g., signal-to-noise ratio conditions). In some cases, a wireless device may support simultaneous slot HARQ feedback, where the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0080] The time interval in LTE or NR can be expressed in multiples of a basic time unit (which may, for example, refer to a sampling period Ts=1 / 30,720,000 seconds). The time interval of the communication resource may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be expressed as Tf=307,200Ts. The radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. The subframe may be further divided into 2 time slots, each time slot having a duration of 0.5 ms, and each time slot may contain 6 or 7 modulation codeword periods (e.g., depending on the length of the cyclic prefix prepended to each codeword period). Excluding the cyclic prefix, each codeword period may contain 2048 sampling periods. In some cases, a subframe may be the smallest scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of shortened TTI (sTTI) or in selected component carriers using sTTI).

[0081] In some wireless communication systems, a time slot may be further divided into a plurality of mini-slots containing one or more symbols. In some instances, a symbol of a mini-slot or a mini-slot may be a minimum scheduling unit. For example, each symbol may vary in duration depending on the subcarrier spacing or the operating frequency band. Further, some wireless communication systems may implement time slot aggregation, wherein a plurality of time slots or mini-slots are aggregated together and used for communication between UE 115 and base station 105.

[0082] The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by a UE 115. A carrier may be downlink or uplink (e.g., in FDD mode), or configured to carry downlink communications and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may include multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0083] For different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR), the organizational structure of the carrier can be different. For example, the communication on the carrier can be organized according to TTIs or time slots, each of which can include user data and control information or signaling to support decoding of the user data. The carrier can also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate the operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers.

[0084] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. In some examples, control information transmitted in a physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or a common search space and one or more UE-specific control regions or UE-specific search spaces).

[0085] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a certain number of predetermined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) of a carrier for a particular radio access technology. In some examples, each served UE 115 may be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0086] In a system using MCM technology, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate of communication with UE 115.

[0087] A device (e.g., base station 105 or UE 115) of wireless communication system 100 may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, wireless communication system 100 may include base stations 105 and / or UEs 115 that support simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0088] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers, a feature that may be referred to as carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.

[0089] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more features including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may also be configured for use in an unlicensed spectrum or a shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by a UE 115 that is not capable of monitoring the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0090] In some cases, an eCC may utilize a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of other component carriers. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a base station 105) may transmit a wideband signal (e.g., according to a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0091] The wireless communication system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. The flexibility of eCC symbol duration and subcarrier spacing may allow eCC to be used across multiple spectrums. In some examples, NR shared spectrum may improve spectrum utilization and spectrum efficiency, particularly through dynamic vertical (e.g., across frequency domain) and horizontal (e.g., across time domain) sharing of resources.

[0092] The wireless communication system 100 may support beamforming between the base station 105 and the UE 115 for communication. Beamforming may be used to improve link margins that are degraded due to path, penetration, and blocking losses. The base station 105 and the UE 115 may be configured with multiple antenna modules to provide a uniform coverage area for beamformed communications. The antenna module may include one or more antenna subarrays that the base station 105 and the UE 115 may use to form directional beams.

[0093] The directional beam may be directed in one or more directions (e.g., angles), and directional beam sweeping may be used (e.g., as part of a beam refinement procedure) to establish a communication link 125 between the base station 105 and the UE 115. The base station 105 may transmit multiple SSBs over a predefined bandwidth in a predefined symbol (e.g., OFDM symbol) of a time slot or TTI. Each SSB may occupy a predefined time period (e.g., 5 ms) of an SSB period and be transmitted by the base station 105 according to an interval, and the base station 105 may repeat the transmission of the SSB in each SSB period. The UE 115 may receive one or more synchronization signals of the SSB and may use the received information to establish communication with the base station 105 via an uplink message.

[0094] In the wireless communication system 100, each SSB may be associated with an SSB index (e.g., a numeric identifier) ​​assigned by the wireless communication system 100. The SSB index may be included, for example, in a table. In some cases, the base station 105 may transmit each SSB via a beam in a beam direction (e.g., the base station 105 may transmit a first SSB via a beam radiated in a first beam direction, and the base station 105-a may transmit a second SSB via a beam radiated in a second beam direction). The UE 115 may measure the signal strength of each SSB detected by the UE 115 within a time period (equal to a time period of a set of SSBs). Based on the measured signal strength, the UE 115 may identify the corresponding SSB and SSB index with the highest signal strength. The UE 115 may identify the SSB with the highest signal strength as being associated with the best beam of the UE 115. In some cases, each SSB may include a physical broadcast channel (PBCH). For each SSB, the SSB index of the SSB may be carried in multiple parts on a PBCH reference signal (eg, a PBCH demodulation reference signal (DMRS)) and the PBCH payload of the SSB.

[0095] The wireless communication system 100 may support higher frequency bands, such as FR2, FR4, or other frequencies above 24.25 GHz. Antenna subarrays may support communications in these higher frequency ranges. For example, an antenna subarray configured for communication at these high frequency ranges may have an inter-element spacing of λ / 2, where λ represents a wavelength. The inter-element spacing may correspond to half the wavelength of a frequency in the high frequency range. Techniques for dynamically mapping SSB resources as a function of frequency and reporting the mapping are proposed. Using dynamic mapping of SSB resources, the wireless communication system 100 can account for performance variations associated with different operating frequencies at higher frequency bands (such as FR4).

[0096] The UE 115 may receive a mapping associated with an SSB resource set and a frequency band set (also referred to as a spectrum band) from the base station 105. The mapping may include an association between an operating frequency of the frequency band and a parameter (e.g., an SSB index) of an SSB transmitted using the operating frequency included in the mapping. In some aspects, the mapping may indicate a reference frequency (e.g., 71 GHz) associated with the mapping and an array gain performance (in dB) at the reference frequency relative to a beam direction (e.g., a transmit beam direction, a receive beam direction) associated with a channel for conveying information. The mapping may indicate an array gain performance (in dB) at different operating frequencies (e.g., operating frequencies within a reference frequency range, such as in the 57-71 GHz range) relative to the beam direction. In some aspects, the UE 115 may receive an indication in a SIB, MIB, RRC signaling, or DCI.

[0097] In one aspect, the UE 115 may reference the mapping and identify the SSB index for delivering the SSB to the UE 115 at a reference frequency (e.g., 71 GHz) or some other operating frequency (e.g., 57 GHz, 61 GHz, 64 GHz, 68 GHz, etc.) that may be included in the mapping. In some aspects, the UE 115 may identify the array gain performance (in dB) and beam direction for delivering the SSB to the UE 115 at the reference frequency or the operating frequency. The UE 115 may identify and select the SSB index corresponding to the combination of the beam direction, the operating frequency, and the associated array gain performance (in dB). In one aspect, in order to achieve a given gain performance (in dB) at the operating frequency (e.g., 57 GHz, 61 GHz, 64 GHz, 68 GHz, etc.), the UE 115 may determine or select the beam direction and accordingly select the corresponding SSB index for receiving the SSB. The UE 115 may monitor the SSB based on the SSB index. Accordingly, in some examples, UE 115 may communicate information on reference signal resources associated with the SSB at the operating frequency and in the beam direction.

[0098] Figure 2 An example of a wireless communication system 200 that supports SSB mapping across different frequencies according to aspects of the present disclosure is illustrated. In some cases, the wireless communication system 200 may implement aspects of the wireless communication system 100 and may include a UE 115-a and a base station 105-a, which may be referred to as Figure 1 Described examples of UE 115 and base station 105. In some cases, base station 105-a may transmit one or more SSBs to UE 115-a, and UE 115-a may process (e.g., decode) the SSBs in order to receive system information and initiate communication with base station 105-a.

[0099] The wireless communication system 200 may support beamformed communications between a base station 105-a and a UE 115-a. In some aspects, the wireless communication system 100 may support beamformed communications in an upper millimeter wave band (e.g., FR4 between approximately 52.6 GHz and 114.25 GHz). However, the base station 105a and the UE 115a may experience high variations in SSB performance between operating frequencies included in the FR4 band. In some cases, in the FR4 band, array gain performance associated with a beamforming codebook used by the base station 105-a and the UE 115-a for codebook-based beam steering may vary widely between a first operating frequency (e.g., 71 GHz) and a second operating frequency (e.g., 57 GHz). In some cases, some beams (e.g., beam directions) and corresponding sets of SSB resources used in the beamforming codebook for beamformed transmissions between the base station 105-a and the UE 115-a at the first operating frequency may be less useful for beamformed transmissions between the base station 105-a and the UE 115-a at the second operating frequency. For example, in a scenario where the beams and SSB resources are used at the second operating frequency, array gain performance associated with the beams and SSB resources may be insufficient (e.g., due to a gain reduction of approximately 2 to 3 dB) compared to a scenario where the beams and SSB resources are used at the first operating frequency.

[0100] The wireless communication system 200 may support dynamically selecting parameters of the SSB based on a mapping of SSB resources that is a function of operating frequency and / or beam direction. In some aspects, using the mapping of SSB resources, the wireless communication system 200 may account for changes in performance (e.g., array gain performance) associated with different operating frequencies (e.g., carrier frequencies) in a frequency band (e.g., an FR4 band). In some examples, the base station 105-a may transmit, and the UE 115-a may receive, a mapping 205 between a set of SSB resources and a set of operating frequencies within the frequency band. The mapping 205 may include an association between the operating frequency of the frequency band and the parameters of the SSB (e.g., SSB index) transmitted using the operating frequency included in the mapping. In some aspects, the mapping 205 may include an association between the operating frequency of the frequency band and reference signal resources associated with the SSB (e.g., reference signal resource restrictions mapped to the operating frequency).

[0101] In some aspects, the mapping 205 may indicate how reference signals at different operating frequencies (e.g., carrier frequencies) relate in terms of signal strength or array gain (in dB). For example, the mapping 205 may indicate a reference frequency (e.g., 71 GHz) associated with the mapping and the array gain performance (in dB) at the reference frequency relative to a beam direction (e.g., transmit beam direction, receive beam direction) associated with a channel used to communicate information between the base station 105-a and the UE 115-a. The mapping 205 may indicate the array gain performance (in dB) at different operating frequencies (e.g., operating frequencies within a range of the reference frequency) relative to the beam direction.

[0102] UE 115-a may receive mapping 205 from base station 105-a, for example, in a SIB, MIB, RRC signaling, or DCI. In some aspects, base station 105-a may configure mapping 205 based on a communication from UE 115-a. The communication may include, for example, a request from UE 115-b, an operating frequency report message of UE 115-a, or an operating frequency recommendation of UE 115-a. In some other aspects, UE 115-a may report mapping 205 to base station 105-a, for example, in a message. In one example, UE 115-a may report mapping 205 in conjunction with an indication of operating frequencies (in a set of operating frequencies included in mapping 205) that UE 115-a can use to report beam measurements.

[0103] In some aspects, the UE 115-a may reference the mapping 205 and identify an SSB index for delivering an SSB to the UE 115-a at a reference frequency (e.g., 71 GHz) or some other operating frequency (e.g., 57 GHz, 61 GHz, 64 GHz, 68 GHz, etc.) that may be indicated in the mapping 205. In some aspects, the UE 115-a may identify an array gain performance (in dB) and a beam direction for delivering an SSB to the UE 115-a at the reference frequency or the operating frequency. The UE 115-a may identify and select an SSB index based on the beam direction, the operating frequency, the associated array gain performance (in dB), or any combination thereof. In one aspect, to achieve gain performance (in dB) at the operating frequency (e.g., 61 GHz), the UE 115-a may determine or select a beam direction and, accordingly, select a corresponding SSB index for receiving the SSB. The UE 115-a may monitor the SSB based on the SSB index. Accordingly, in some examples, UE 115-a may communicate information 210 on reference signal resources associated with the SSB at an operating frequency and in a beam direction (e.g., via antenna elements of an antenna array of UE 115-a).

[0104] Figure 3An example of antenna gain 300 that supports techniques for SSB mapping across different frequencies in accordance with aspects of the present disclosure is illustrated. In some examples, antenna gain 300 may be implemented as described with reference to Figure 1 and 2 The antenna gain 300 may represent aspects of the wireless communication systems 100 and 200 described herein. The antenna gain 300 may represent aspects of the antenna gain 300 for a UE 115 (e.g., referring to Figure 2 Different antenna subarray gains for different phases (e.g., beam directions) of directional beams 305 for communication between the depicted UE 115-a) and a base station. Different lines illustrate different responses of directional beams 305 at different operating frequencies (e.g., 71 GHz and 57 GHz). In some examples, directional beams 305 may transmit directional beams. In various examples, directional beams 305 may receive directional beams.

[0105] The directional beam 305 may represent the same directional beam of the UE 115 transmitting at a different operating frequency (e.g., carrier frequency) in the upper millimeter wave band (e.g., FR4 between approximately 52.6 GHz and 114.25 GHz). In some aspects, the antenna gain 300 may implement various aspects associated with a single RF chain used over an ultra-wide bandwidth range (e.g., 14 GHz wide, e.g., from 57 GHz to 71 GHz) of the upper millimeter wave band. In some cases, because a single RF chain uses a single set of phase shifters and amplitude control, analog / RF beamforming in the upper millimeter wave band may be limited and may result in poor performance at operating frequencies included in the upper millimeter wave band. Implementing multiple RF chains to accommodate multiple operating frequencies in the upper millimeter wave band will result in increased complexity and cost. Therefore, techniques for improving performance in the upper millimeter wave band of a single RF chain are needed.

[0106] Referring to UE 115 (eg, referring to Figure 2 The antenna gain 300 is described with reference to an example antenna array of the UE 115 described herein. In some aspects, the antenna array can be a 16x1 antenna array with d=λ / 2 at 71 GHz, where d is the inter-element spacing associated with the antenna array and λ is the wavelength. Figure 3In the described example, UE 115-a may communicate using an antenna array for operating frequencies included in an ultra-wide bandwidth range from 57 GHz to 71 GHz (e.g., 14 GHz wide). In some aspects, using the antenna array and a codebook (e.g., a codebook of size 12 associated with 12 SSBs), UE 115-a may steer a directional beam in a set of directions (e.g., between zero and fifty degrees from a line of sight (e.g., a main direction) of the antenna subarray, or some other angle from the line of sight or main direction). In one example, the codebook may be designed for a reference frequency (e.g., 57 GHz or 71 GHz) for an ultra-wide bandwidth range. Figure 3 The antenna gain 300 illustrated in is described herein with reference to a reference frequency of 71 GHz (eg, a codebook of 71 GHz).

[0107] In some examples, directional beam 305-a may correspond to a beamformed transmission at a first operating frequency (e.g., 71 GHz) based on a codebook designed for the first operating frequency (e.g., 71 GHz). Directional beam 305-b may correspond to a beamformed transmission at a second operating frequency (e.g., 57 GHz) based on a codebook designed for the first operating frequency (e.g., 71 GHz). Referring to antenna gain 300, array gain performance may vary based on the operating frequency of directional beam 305. Antenna gain 300 is a non-limiting example of an antenna subarray gain, and other antenna subarray gains at other operating frequencies are possible.

[0108] For a directional beam 305 pointed in a given direction, the characteristics (e.g., gain, direction) of the directional beam 305 relative to the main lobe and one or more corresponding side lobes (side lobes not shown for clarity) may vary in both direction and gain based on the operating frequency. For example, for a directional beam 305a at a first operating frequency (e.g., 71 GHz), a response 310-a corresponding to a particular SSB (e.g., SSB0) may have a peak (illustrated by label 315-a) at a beam direction (e.g., phase angle) of -45 degrees (e.g., 10 dB gain). On the one hand, the UE 115-a may select an SSB index of zero (e.g., SSB0) to transmit in a beam direction of -45 degrees at 10 dB gain and the first operating frequency. In some cases, where UE 115-a transmits at a second operating frequency (e.g., 57 GHz) using the same SSB index (e.g., SSB0) (e.g., as part of a channel hopping procedure), UE 115-a may experience a different gain (e.g., a 2 to 3 dB drop).

[0109] For example, if UE 115-a transmits at a first operating frequency (e.g., 71 GHz) and a second operating frequency (e.g., 57 GHz) using the same SSB index (e.g., SSB0), the directional beam 305-b may have different gains. For example, the SSB at 57 GHz may have a 3 dB drop compared to the transmission at the first operating frequency and / or may be directed to a beam direction (e.g., phase angle) of -70 degrees, as illustrated by response 310-b and label 315-b. In some cases, referring to response 310-b, the directional beam 305-b may have a -5 dB gain for a beam direction (e.g., phase angle) of -45 degrees (e.g., a 15 dB drop compared to the transmission at the first operating frequency). Response 310-a and response 310-b may be at the coverage edge associated with the antenna array and codebook (e.g., a codebook of size 12 associated with 12 SSBs).

[0110] Aspects of the antenna gain 300 described herein are also applicable to other reference frequencies (e.g., 57 GHz). For example, for a reference frequency of 57 GHz (e.g., a codebook at 57 GHz), a directional beam 305-a at a first operating frequency (e.g., 57 GHz) and a directional beam 305-b at a second operating frequency (e.g., 71 GHz) may have the same Figure 3 Different responses are explained (e.g., array gain compared to phase). However, Figure 3 The example aspects described in may be applicable to a reference frequency of 57 GHz. That is, the performance (e.g., gain, beam direction) associated with an SSB index (e.g., SSB0) may vary across operating frequencies (e.g., 71 GHz compared to 61 GHz, 57 GHz compared to 71 GHz).

[0111] Accordingly, due to broadband effects (e.g., spreading in the frequency domain) in an ultra-wide bandwidth range (e.g., 14 GHz) in the upper millimeter wave band (e.g., FR4 between approximately 52.6 GHz and 114.25 GHz), UE 115-a may not be able to use the same SSB parameters (e.g., SSB index) to transmit in the same beam direction across different frequencies in this ultra-wide bandwidth range in the upper millimeter wave band. That is, in some cases, SSB0 at 57 GHz may be mapped to SSB1 at 71 GHz. The same directional beam 305 at 57 GHz may point to different directions (degrees) at 71 GHz. In some cases, the impact of broadband effects (e.g., directional shifts, differences in array gain, changes in SSB mapping) described with reference to the upper millimeter wave bands (e.g., FR4) may be negligible or small in other frequency bands such as frequency range 1 (FR1 between approximately 410 MHz and 7.125 GHz), frequency range 2 (FR2 between approximately 24.25 GHz and 52.6 GHz), and frequency range 3 (FR3 between approximately 7.125 GHz and 24.25 GHz).

[0112] With reference to the antenna gain 300, the directional beam 305 can have a low correlation with the operating frequency (e.g., independent of the design). In some aspects, it may be beneficial to switch between different beam indices when switching between different operating frequencies in the upper millimeter wave band (e.g., particularly towards the edge of coverage). In such cases, it may be beneficial to select SSB parameters based on both the operating frequency and the direction. For example, depending on the beam direction (beam angle) of interest, using different beams from 57 GHz or 71 GHz can achieve improvements in reducing array gain loss. In some aspects, the UE 115-a (and the base station 105-a) may use a smaller codebook size at an operating frequency of 71 GHz to cover the same area as the area covered by the operating frequency of 57 GHz.

[0113] In one example, refer to Figure 2, the mapping 205 may include an association between operating frequencies in an ultra-wide bandwidth range (e.g., 14 GHz) in the upper millimeter wave band (e.g., FR4 between approximately 52.6 GHz and 114.25 GHz) described herein and parameters (e.g., SSB indexes) of SSBs delivered using the operating frequencies included in the mapping 205. In some aspects, the mapping 205 may indicate how reference signals at different operating frequencies (e.g., 57 GHz and 61 GHz, 57 GHz and 71 GHz) are related in terms of signal strength or array gain (in dB). For example, the mapping 205 may indicate a reference frequency (e.g., 57 GHz) associated with the mapping 205 and an antenna gain 300 at the reference frequency relative to a directional beam 305. The mapping 205 may indicate the antenna gain 300 at different operating frequencies (e.g., operating frequencies within the ultra-wide bandwidth range of 14 GHz) relative to the beam direction.

[0114] UE 115-a may reference mapping 205 and identify SSB indices of SSBs that may be delivered to UE 115-a at a reference frequency (e.g., 71 GHz) or some other operating frequency (e.g., 57 GHz, 61 GHz, any operating frequency within an ultra-wide bandwidth of 14 GHz) indicated in mapping 205. In some aspects, UE 115-a may identify an array gain performance (in dB) and a beam direction for delivering SSBs to UE 115-a at a reference frequency or an operating frequency. UE 115-a may identify and select an SSB index corresponding to a combination of a beam direction, an operating frequency, and an associated array gain performance (in dB). In one aspect, in order to achieve a gain performance (in dB) at an operating frequency (e.g., 61 GHz) (e.g., a gain performance selected by UE 115-a), UE 115-a may determine or select a beam direction and, accordingly, select a corresponding SSB index for receiving the SSB. UE 115-a may monitor the SSB based on the SSB index. Accordingly, in some examples, UE 115-a may communicate information 210 on a reference signal resource associated with the SSB at an operating frequency and in a beam direction (e.g., via antenna elements of an antenna array of UE 115-a).

[0115] Figure 4 An example of a process flow 400 for supporting SSB mapping across different frequencies according to aspects of the present disclosure is illustrated. In some examples, the process flow 400 can implement aspects of the wireless communication system 100 or 200. Additionally, the process flow 400 can be implemented by the UE 115-c and the base station 105-c, which can be referenced Figure 1 and 2 Examples of UE 115, UE 115-a, base station 105, and base station 105-a are described.

[0116] In the following description of process flow 400, operations between UE 115-c and base station 105-c may be communicated in an order different from that shown, or operations performed by base station 105-c and UE 115-c may be performed in a different order or at a different time. Certain operations may also be excluded from process flow 400, or other operations may be added to process flow 400. It will be understood that although base station 105-c and UE 115-c are shown as performing a certain number of operations of process flow 400, any wireless device may perform the operations shown.

[0117] At 405, the UE 115-c may receive a mapping between a set of SSB resources and a set of operating frequencies within a frequency band (e.g., FR4 or an ultra-wide bandwidth range (e.g., 14 GHz) in FR4). In some aspects, the UE 115-c may receive the mapping from the base station 105-c. The mapping may include an association between a set of operating frequencies and / or beam directions within the frequency band and parameters of SSBs communicated using the set of operating frequencies included in the mapping. In some aspects, the parameters may include an SSB index associated with the set of operating frequencies within the frequency band.

[0118] In one example, the mapping may include mapping of SSB parameters for different operating frequencies across a frequency band (e.g., FR4 or an ultra-wide bandwidth range (e.g., 14 GHz) in FR4). For example, the mapping may indicate that SSB0 at a first operating frequency (e.g., 71 GHz) is mapped to a first gain and / or a first direction, while SSB0 at a second operating frequency (e.g., 57 GHz) is mapped to a second gain and / or a second direction. In another example, the mapping may indicate that SSB0 at a first operating frequency (e.g., 71 GHz) is mapped to a second gain and / or a second direction. 11 Mapped to SSB at a second operating frequency (e.g., 57 GHz) 10 .

[0119] At 410, the UE 115-c may identify an operating frequency in a frequency band and an operating frequency set for communicating SSBs. At 415, the base station 105-c may identify an operating frequency in a frequency band and an operating frequency set for communicating SSBs.

[0120] At 420, the UE 115-c may identify a direction associated with the beam based on the received mapping. In some examples, the UE 115-c may identify a first gain associated with a first operating frequency in the operating frequency set and a direction of the beam and a second gain associated with a second operating frequency in the operating frequency set and a second direction of the second beam based on the received mapping. For example, the mapping may indicate how a reference signal at one operating frequency (carrier frequency) is mapped to signal strength and array gain at different carrier frequencies. At 425, the base station 105-c may identify a direction associated with the beam based on the mapping.

[0121] At 430, the UE 115-c may identify a parameter of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a beam direction for communicating the SSB. In some aspects, the UE 115-c may identify an index of the SSB within the set of SSBs based on the frequency band and the direction. In some examples, at 430, the UE 115-c may identify the parameter based on identifying the first gain and the second gain.

[0122] In some examples, at 430, the UE 115-c may identify, based on the mapping received at 405, an offset between a parameter (e.g., an index) of an SSB communicated using a first operating frequency (e.g., 71 GHz) of the frequency band relative to a second parameter (e.g., an index) of a second SSB communicated using a second operating frequency (e.g., 57 GHz) of the frequency band. For example, the mapping at 405 may include a first table indicating array gains and beam directions corresponding to a set of SSB indices with reference to the first operating frequency. In some aspects, the mapping at 405 may include a second table indicating array gains and beam directions corresponding to a set of SSB indices with reference to the second operating frequency. In some other aspects, the mapping at 405 may include the first table with reference to the first operating frequency in combination with a set of offsets. Using the offsets, the UE 115-c may map the SSB indices of the first operating frequency to the SSB indices of the second operating frequency based on the offsets, which may reduce memory usage compared to storing multiple tables.

[0123] In some examples, the mapping may indicate SSB index sets used across different frequencies (e.g., across frequencies included in FR4, or across frequencies in an ultra-wide bandwidth range (e.g., 14 GHz, ranging from 57 GHz to 71 GHz) included in FR4). In some aspects, the mapping may indicate that a first operating frequency (e.g., f0=57 GHz) is used as a baseline, while a second operating frequency (e.g., f1=60 GHz) uses SSB set indexes 1 to 20, and a third operating frequency (e.g., f2=71 GHz) uses SSB set indexes 2 to 21.

[0124] At 435, the base station 105-c may identify a parameter (e.g., an index) of the SSB based on an operating frequency in the operating frequency set used to communicate the SSB and a direction of a beam used to communicate the SSB.

[0125] At 440, the UE 115-c may identify a reference signal resource set associated with an SSB in the frequency band based on the mapping and the operating frequency. In some aspects, the UE 115-c may determine that an operating frequency in the operating frequency set satisfies the criteria, wherein the reference signal resource set is associated with the operating frequency. In an aspect, the mapping may be a reference signal resource restriction based on the operating frequency (carrier frequency) at the UE 115-c. In some aspects, the mapping may include SSB restrictions with reference to the operating frequency.

[0126] At 445 , the UE 115 - c may monitor the SSB based on the identified parameter (eg, the identified index). In some aspects, at 445 , the UE 115 - c may monitor the SSB based on the offset identified at 430 .

[0127] At 450, UE 115-c may receive the SSB based on the identified parameters (e.g., the identified index).

[0128] At 455, the UE 115-c may transmit a message indicating a mapping to the base station 105-c, wherein the mapping further includes an association between a set of operating frequencies within the frequency band and parameters of SSBs communicated using the set of operating frequencies included in the mapping. In some aspects, the UE 115c may transmit an indication of an operating frequency in the set of operating frequencies for reporting beam measurements, wherein the indication is included in the message. In some examples, the UE 115-c may indicate a reference frequency for reporting beam measurements and a set of SSBs from a global set of SSBs that can be used for the operating frequency (carrier frequency).

[0129] At 460 , the UE 115 - c may communicate information (eg, data) using the set of reference signal resources.

[0130] Figure 5 A block diagram 500 of a device 505 supporting SSB mapping across different frequencies according to aspects of the present disclosure is shown. The device 505 may be an example of aspects of the UE 115 as described herein. The device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. The device 505 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0131] Receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to SSB mapping across different frequencies, etc.). The information may be passed to other components of device 505. Receiver 510 may be a reference Figure 8 Examples of aspects of the transceiver 820 are described. The receiver 510 may utilize a single antenna or a collection of antennas.

[0132] The communication manager 515 may receive a mapping between an SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for delivering the SSB and a direction of a beam for delivering the SSB; and monitor the SSB based on the identified parameters. The communication manager 515 may be an example of aspects of the communication manager 810 described herein.

[0133] The communication manager 515 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 515 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0134] The communication manager 515 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 515 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 515 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0135] The actions performed by the communication manager 515 as described herein may be implemented to achieve one or more potential advantages. One implementation may allow the UE 115 to improve the quality and reliability of service at the UE 115 because performance in the upper millimeter wave band of a single RF chain is improved.

[0136] The transmitter 520 may transmit signals generated by other components of the device 505. In some examples, the transmitter 520 may be co-located with the receiver 510 in a transceiver module. For example, the transmitter 520 may be a reference Figure 8 Examples of aspects of the described transceiver 820. The transmitter 520 may utilize a single antenna or a collection of antennas.

[0137] Figure 6A block diagram 600 of a device 605 supporting SSB mapping across different frequencies according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505 or UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 635. The device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0138] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to SSB mapping across different frequencies, etc.). The information may be passed to other components of the device 605. The receiver 610 may be a reference Figure 8 Examples of aspects of the transceiver 820 are described. The receiver 610 may utilize a single antenna or a collection of antennas.

[0139] Communications manager 615 may be an example of aspects of communications manager 515 as described herein. Communications manager 615 may include mapping component 620, parameter component 625, and SSB component 630. Communications manager 615 may be an example of aspects of communications manager 810 as described herein.

[0140] The mapping component 620 can receive a mapping between an SSB resource set and an operating frequency set within a frequency band. The parameter component 625 can identify parameters of the SSB based on the operating frequency in the operating frequency set for delivering the SSB and the direction of the beam for delivering the SSB. The SSB component 630 can monitor the SSB based on the identified parameters.

[0141] The transmitter 635 can transmit signals generated by other components of the device 605. In some examples, the transmitter 635 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 635 can be a reference Figure 8 Examples of aspects of the described transceiver 820. The transmitter 635 may utilize a single antenna or a collection of antennas.

[0142] Figure 7 A block diagram 700 of a communication manager 705 supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown. The communication manager 705 can be an example of aspects of the communication manager 515, the communication manager 615, or the communication manager 810 described herein. The communication manager 705 can include a mapping component 710, a parameter component 715, an SSB component 720, an operating frequency component 725, a messaging component 730, a resource component 735, a communication component 740, and a gain component 745. Each of these modules can communicate directly or indirectly with each other (e.g., via one or more buses).

[0143] Mapping component 710 can receive a mapping between a set of SSB resources and a set of operating frequencies within a frequency band.

[0144] In some examples, mapping component 710 can identify a frequency band and a direction of a beam based on the receive map.

[0145] In some examples, mapping component 710 may receive a mapping from a base station, the mapping further comprising an association between a set of operating frequencies within a frequency band and parameters of SSBs delivered using the set of operating frequencies included in the mapping. In some examples, the mapping further comprises an association between a set of operating frequencies within a frequency band and parameters of SSBs delivered using the set of operating frequencies included in the mapping.

[0146] In some examples, the mapping component 710 may transmit a request for a mapping. In some examples, the mapping component 710 may receive a mapping based on the transmitted request. In some examples, the mapping component 710 may identify an offset between a parameter of an SSB delivered using a first operating frequency of the frequency band relative to a second parameter of a second SSB delivered using a second operating frequency of the frequency band based on the received mapping. In some cases, the mapping is included in an SIB, an MIB, RRC signaling, a DCI, or a combination thereof. In some cases, the mapping includes an indication of one or more SSB groups and one or more SSB sets in the one or more SSB groups.

[0147] Parameter component 715 can identify parameters of the SSB based on an operating frequency in the set of operating frequencies for communicating the SSB and a direction of a beam for communicating the SSB. In some examples, parameter component 715 can identify parameters based on identifying an operating frequency in the set of operating frequencies.

[0148] In some examples, the parameter component 715 may identify the parameter based on identifying the frequency band and the direction. In some examples, the parameter component 715 may identify the parameter based on identifying the first gain and the second gain. In some cases, the parameter includes an SSB index associated with an operating frequency set within the frequency band. The SSB component 720 may monitor the SSB based on the identified parameter. In some examples, the SSB component 720 may identify the index of the SSB within the SSB set based on the frequency band and the direction. In some examples, the SSB component 720 may monitor the SSB based on the identified index. In some examples, the SSB component 720 may monitor the SSB based on the identified offset. In some cases, the frequency band may be used to deliver the SSB on a first set of SSB resource sets. The operating frequency component 725 may identify the operating frequency in the operating frequency set for delivering the SSB. In some examples, the operating frequency component 725 may determine that the operating frequency in the operating frequency set meets the criteria.

[0149] Messaging component 730 may transmit a message to the base station indicating the mapping. In some examples, messaging component 730 may transmit an indication of an operating frequency in the operating frequency set for reporting beam measurements. In some examples, the indication may be included in the message.

[0150] Resource component 735 can identify a reference signal resource set associated with an SSB in a frequency band based on the mapping and the operating frequency. In some examples, a reference signal resource set can be associated with an operating frequency.

[0151] Communication component 740 can communicate information using a reference signal resource set. In some examples, communication component 740 can communicate information using an operating frequency in a set of operating frequencies based on monitoring an SSB.

[0152] The gain component 745 may identify, based on the received mapping, a first gain associated with a first operating frequency in the set of operating frequencies and a direction of a beam and a second gain associated with a second operating frequency in the set of operating frequencies and a second direction of the second beam.

[0153] Figure 8 A diagram of a system 800 including a device 805 that supports SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown. The device 805 may be an example of a device 505, a device 605, or a UE 115 as described herein or include components of these devices. The device 805 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may be in electronic communication via one or more buses (e.g., a bus 845).

[0154] The communication manager 810 may receive a mapping between an SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for delivering the SSB and a direction of a beam for delivering the SSB; and monitor the SSB based on the identified parameters.

[0155] I / O controller 815 can manage input and output signals of device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 815 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 815 can utilize an operating system, such as Or another known operating system. In other cases, I / O controller 815 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 815 may be implemented as part of a processor. In some cases, a user may interact with device 815 via I / O controller 805 or via hardware components controlled by I / O controller 815.

[0156] The transceiver 820 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 820 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 820 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0157] In some cases, a wireless device may include a single antenna 825. However, in some cases, the device may have more than one antenna 825, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0158] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 830 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0159] The processor 840 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks that support SSB mapping across different frequencies).

[0160] The code 835 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 835 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 835 may not be directly executed by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0161] Fig. 9 A block diagram 900 of a device 905 supporting SSB mapping across different frequencies according to aspects of the present disclosure is shown. The device 905 may be an example of aspects of a base station 105 as described herein. The device 905 may include a receiver 910, a communication manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0162] The receiver 910 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to SSB mapping across different frequencies, etc.). The information may be passed to other components of the device 905. The receiver 910 may be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The receiver 910 may utilize a single antenna or a collection of antennas.

[0163] The communication manager 915 may transmit a mapping between an SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for transmitting the SSB and a direction of a beam for transmitting the SSB; and transmit the SSB based on the identified parameters. The communication manager 915 may be an example of aspects of the communication manager 1210 described herein.

[0164] The communication manager 915 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 915 or its subcomponents may be performed by a general purpose processor, a DSP, an application specific integrated circuit (ASIC), an FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0165] The communication manager 915 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 915 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 915 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0166] The actions performed by the communication manager 915 as described herein may be implemented to achieve one or more potential advantages. One implementation may allow the base station 105 to improve the quality and reliability of service at the base station 105 because performance in the upper millimeter wave band of a single RF chain is improved.

[0167] The transmitter 920 may transmit signals generated by other components of the device 905. In some examples, the transmitter 920 may be co-located with the receiver 910 in a transceiver module. For example, the transmitter 920 may be a reference Fig.12 Examples of aspects of the described transceiver 1220. The transmitter 920 may utilize a single antenna or a collection of antennas.

[0168] Fig.10 A block diagram 1000 of a device 1005 supporting SSB mapping across different frequencies according to aspects of the present disclosure is shown. The device 1005 may be an example of aspects of the device 905 or base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1035. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0169] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to SSB mapping across different frequencies, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0170] The communication manager 1015 can be an example of aspects of the communication manager 915 as described herein. The communication manager 1015 can include a mapping component 1020, a parameter component 1025, and an SSB component 1030. The communication manager 1015 can be an example of aspects of the communication manager 1210 described herein.

[0171] The mapping component 1020 can transmit a mapping between the SSB resource set and the operating frequency set within the frequency band. The parameter component 1025 can identify the parameters of the SSB based on the operating frequency in the operating frequency set for transmitting the SSB and the direction of the beam for transmitting the SSB. The SSB component 1030 can transmit the SSB based on the identified parameters.

[0172] The transmitter 1035 can transmit signals generated by other components of the device 1005. In some examples, the transmitter 1035 can be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1035 can be a reference Fig.12 Examples of various aspects of the described transceiver 1220. The transmitter 1035 may utilize a single antenna or a collection of antennas.

[0173] Fig.11 A block diagram 1100 of a communication manager 1105 supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown. The communication manager 1105 can be an example of aspects of the communication manager 915, the communication manager 1015, or the communication manager 1210 described herein. The communication manager 1105 can include a mapping component 1110, a parameter component 1115, an SSB component 1120, an operating frequency component 1125, a messaging component 1130, a gain component 1135, and a communication component 1140. Each of these modules can communicate directly or indirectly with each other (e.g., via one or more buses).

[0174] The mapping component 1110 may transmit a mapping between a set of SSB resources and a set of operating frequencies within a frequency band. In some examples, the mapping component 1110 may identify the frequency band and a direction associated with the beam based on the mapping. In some examples, the mapping component 1110 may transmit a mapping to the user equipment, the mapping further comprising an association between the set of operating frequencies within the frequency band and parameters of the SSB communicated using the set of operating frequencies included in the mapping.

[0175] In some examples, mapping component 1110 can receive a request for a mapping from a user equipment. In some examples, mapping component 1110 transmits the mapping based on the transmit request.

[0176] In some examples, mapping component 1110 can transmit a mapping based on an identification offset.

[0177] In some cases, the mapping is included in a SIB, a master information block (MIB), RRC signaling, a DCI, or a combination thereof. In some cases, the mapping includes an indication of one or more SSB groups and one or more SSB sets in the one or more SSB groups.

[0178] Parameter component 1115 may identify a parameter of an SSB based on an operating frequency in an operating frequency set for communicating an SSB and a direction of a beam for communicating an SSB. In some examples, parameter component 1115 may identify a parameter based on identifying an operating frequency in an operating frequency set. In some examples, parameter component 1115 identifies a parameter based on identifying a frequency band and a direction. In some examples, parameter component 1115 identifies a parameter based on identifying a first gain and a second gain. In some examples, parameter component 1115 may identify an offset between a parameter of an SSB communicated using a first operating frequency of a frequency band relative to a second parameter of a second SSB communicated using a second operating frequency of the frequency band.

[0179] In some cases, the parameters include an SSB index associated with a set of operating frequencies within a frequency band.

[0180] The SSB component 1120 can transmit the SSB based on the identified parameters.

[0181] In some examples, the SSB component 1120 may identify an index of an SSB within a set of SSBs based on frequency band and direction.

[0182] In some examples, the SSB component 1120 can transmit the SSB based on the identification index. In some cases, the SSB can be delivered on a first set of SSB resource sets using a frequency band.

[0183] The operating frequency component 1125 can identify an operating frequency in the set of operating frequencies for communicating SSB. In some examples, the operating frequency component 1125 can receive an indication of an operating frequency in the set of operating frequencies for reporting beam measurements.

[0184] Messaging component 1130 can receive a message from a user equipment indicating a mapping, wherein the mapping further includes an association between a set of operating frequencies within a frequency band and parameters of an SSB communicated using the set of operating frequencies included in the mapping. In some examples, the indication can be included in the message.

[0185] The gain component 1135 may identify, based on the mapping, a first gain associated with a first operating frequency in the set of operating frequencies and a direction of a beam and a second gain associated with a second operating frequency in the set of operating frequencies and a second direction of the second beam.

[0186] The communication component 1140 can communicate information using an operating frequency in the set of operating frequencies based on monitoring the SSB.

[0187] Fig.12 A diagram of a system 1200 including a device 1205 supporting SSB mapping across different frequencies in accordance with aspects of the present disclosure is shown. The device 1205 may be an example of or include components of a device 905, a device 1005, or a base station 105 as described herein. The device 1205 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communications manager 1210, a network communications manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communications manager 1245. These components may be in electronic communication via one or more buses (e.g., bus 1250).

[0188] The communication component 1210 may transmit a mapping between an SSB resource set and an operating frequency set within a frequency band; identify parameters of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB; and transmit the SSB based on the identified parameters.

[0189] The network communications manager 1215 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1215 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0190] The transceiver 1220 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1220 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1220 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0191] In some cases, a wireless device may include a single antenna 1225. However, in some cases, the device may have more than one antenna 1225, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0192] Memory 1230 may include RAM, ROM, or a combination thereof. Memory 1230 may store computer readable code 1235 including instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform various functions described herein. In some cases, memory 1230 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0193] Processor 1240 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks that support SSB mapping across different frequencies).

[0194] The inter-site communication manager 1245 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1245 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-site communication manager 1245 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0195] The code 1235 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1235 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1235 may not be directly executed by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0196] Fig.13 A flow chart illustrating a method 1300 for supporting SSB mapping across different frequencies according to aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1300 may be implemented by a UE 115 or components thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0197] At 1305, the UE may receive a mapping between a set of SSB resources and a set of operating frequencies within a frequency band. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be performed as described with reference to Figures 5 to 8 The described mapping components are performed.

[0198] At 1310, the UE may identify parameters of the SSB based on an operating frequency in an operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB. In some aspects, the UE may identify an index of an SSB within the SSB set based on a frequency band and a direction. The operations of 1310 may be performed according to methods described herein. In some examples, aspects of the operations of 1310 may be performed as described with reference to Figures 5 to 8 The described parameter components are executed.

[0199] At 1315, the UE may monitor the SSB based on the identified parameter. In some aspects, the UE may monitor the SSB based on the identification index. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be performed as described with reference to Figures 5 to 8 The described SSB components are implemented.

[0200] Fig.14 1 is a flow chart illustrating a method 1400 for supporting SSB mapping across different frequencies according to aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE 115 or components thereof as described herein. Figures 5 to 8 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0201] At 1405, the UE may receive a mapping between a set of SSB resources and a set of operating frequencies within a frequency band. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 5 to 8 The described mapping components are performed.

[0202] At 1410, the UE may identify an operating frequency in an operating frequency set for delivering SSBs. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Figures 5 to 8 The described operating frequency components are performed.

[0203] At 1415, the UE may identify a parameter of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB. In some aspects, the UE may identify the parameter based on identifying an operating frequency in the operating frequency set. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed as described with reference to Figures 5 to 8 The described parameter components are executed.

[0204] At 1420, the UE may monitor the SSB based on the identified parameters. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be performed as described with reference to Figures 5 to 8 The described parameter components are executed.

[0205] Fig.15 A flow chart illustrating a method 1500 for supporting SSB mapping across different frequencies according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by a base station 105 or components thereof as described herein. Figures 9 to 12In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0206] At 1505, the base station may transmit a mapping between a set of SSB resources and a set of operating frequencies within a frequency band. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 9 to 12 The described mapping components are performed.

[0207] At 1510, the base station may identify parameters of the SSB based on an operating frequency in the operating frequency set for communicating the SSB and a direction of a beam for communicating the SSB. In some aspects, the base station may identify an index of an SSB within the SSB set based on the frequency band and the direction. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 9 to 12 The described parameter components are executed.

[0208] At 1515, the base station may transmit the SSB based on the identified parameters. In some aspects, the base station may transmit the SSB based on the identification index. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figures 9 to 12 The described SSB components are implemented.

[0209] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0210] The following provides an overview of various aspects of the disclosure:

[0211] Aspect 1: A method for performing wireless communication at a UE, comprising: receiving a mapping between a synchronization signal block resource set and an operating frequency set within a frequency band; identifying parameters of the synchronization signal block based at least in part on an operating frequency in the operating frequency set used to transmit the synchronization signal block and a direction of a beam used to transmit the synchronization signal block; and monitoring the synchronization signal block based at least in part on the identified parameters.

[0212] Aspect 2: A method as in Aspect 1, wherein the parameters for identifying a synchronization signal block include: identifying an index of the synchronization signal block within a synchronization signal block set based at least in part on a frequency band and a direction, wherein monitoring the synchronization signal block is based at least in part on identifying the index.

[0213] Aspect 3: The method as in any one of Aspects 1 to 2 further comprises: identifying an operating frequency in an operating frequency set for transmitting a synchronization signal block, wherein the identification parameter is at least partially based on identifying the operating frequency in the operating frequency set.

[0214] Aspect 4: The method of any one of aspects 1 to 3, further comprising: identifying a frequency band and a direction of a beam based at least in part on the receive map, wherein the identification parameter is based at least in part on identifying the frequency band and the direction.

[0215] Aspect 5: A method as in any one of Aspects 1 to 4, wherein receiving a mapping comprises: receiving a mapping from a base station, the mapping further comprising an association between an operating frequency set within a frequency band and parameters of a synchronization signal block transmitted using the operating frequency set included in the mapping.

[0216] Aspect 6: A method as in Aspect 5, wherein the parameter includes a synchronization signal block index associated with an operating frequency set within a frequency band.

[0217] Aspect 7: The method as in any one of Aspects 1 to 6 further comprises: transmitting a message indicating a mapping to a base station, wherein the mapping further comprises an association between an operating frequency set within a frequency band and parameters of a synchronization signal block transmitted using the operating frequency set included in the mapping.

[0218] Aspect 8: The method of aspect 7 further comprises: transmitting an indication of an operating frequency in the operating frequency set for reporting beam measurements, wherein the indication is included in the message.

[0219] Aspect 9: The method of any one of Aspects 1 to 8, further comprising: identifying a reference signal resource set associated with a synchronization signal block in a frequency band based at least in part on the mapping and the operating frequency; and conveying information using the reference signal resource set.

[0220] Aspect 10: The method of aspect 9 further comprises: determining that an operating frequency in the operating frequency set satisfies a criterion, wherein the reference signal resource set is associated with the operating frequency.

[0221] Aspect 11: The method as in any one of Aspects 1 to 10 further includes: identifying a first gain associated with a first operating frequency and a direction of a beam in an operating frequency set and a second gain associated with a second operating frequency and a second direction of the second beam in the operating frequency set based at least in part on a received mapping, wherein the identification parameter is at least in part based on identifying the first gain and the second gain.

[0222] Aspect 12: The method of any one of aspects 1 to 11, further comprising: transmitting a request for a mapping, wherein receiving the mapping is based at least in part on transmitting the request.

[0223] Aspect 13: A method as in any one of Aspects 1 to 12, further comprising: identifying an offset between a parameter of a synchronization signal block transmitted using a first operating frequency of a frequency band relative to a second parameter of a second synchronization signal block transmitted using a second operating frequency of the frequency band based at least in part on a received mapping, wherein monitoring the synchronization signal block is based at least in part on identifying the offset.

[0224] Aspect 14: The method of any one of Aspects 1 to 13, further comprising: communicating information using an operating frequency in the set of operating frequencies based at least in part on monitoring a synchronization signal block.

[0225] Aspect 15: A method as in any one of Aspects 1 to 14, wherein the mapping is included in an SIB, a master information block (MIB), RRC signaling, a DCI, or a combination thereof; and the mapping includes an indication of one or more synchronization signal block groups and one or more synchronization signal block sets in one or more synchronization signal block groups.

[0226] Aspect 16: A method as in any one of Aspects 1 to 15, wherein the synchronization signal block is transmitted on a first set in the synchronization signal block resource set in the used frequency band.

[0227] Aspect 17: A method for performing wireless communications at a base station, comprising: transmitting a mapping between a synchronization signal block resource set and an operating frequency set within a frequency band; identifying parameters of the synchronization signal block based at least in part on an operating frequency in the operating frequency set used to transmit the synchronization signal block and a direction of a beam used to transmit the synchronization signal block; and transmitting the synchronization signal block based at least in part on the identified parameters.

[0228] Aspect 18: A method as in Aspect 17, wherein the parameters for identifying a synchronization signal block include: identifying an index of the synchronization signal block within a set of synchronization signal blocks based at least in part on a frequency band and a direction, wherein transmitting the synchronization signal block is based at least in part on identifying the index.

[0229] Aspect 19: The method as in any one of Aspects 17 to 18, further comprising: identifying an operating frequency in the operating frequency set for transmitting the synchronization signal block, wherein the identification parameter is at least partially based on identifying the operating frequency in the operating frequency set.

[0230] Aspect 20: The method of any one of aspects 17 to 19, further comprising: identifying a frequency band and a direction associated with the beam based at least in part on the mapping, wherein the identification parameter is based at least in part on identifying the frequency band and the direction.

[0231] Aspect 21: A method as in any one of Aspects 17 to 20, wherein transmitting a mapping comprises: transmitting a mapping to a user equipment, the mapping further comprising an association between an operating frequency set within a frequency band and parameters of a synchronization signal block transmitted using the operating frequency set included in the mapping.

[0232] Aspect 22: A method as in Aspect 21, wherein the parameter includes a synchronization signal block index associated with an operating frequency set within a frequency band.

[0233] Aspect 23: The method of any one of Aspects 17 to 22 further comprises: receiving a message indicating a mapping from a user equipment, wherein the mapping further comprises an association between an operating frequency set within a frequency band and parameters of a synchronization signal block transmitted using the operating frequency set included in the mapping.

[0234] Aspect 24: The method of Aspect 23 further comprises: receiving an indication of an operating frequency in the operating frequency set for reporting beam measurements, wherein the indication is included in the message.

[0235] Aspect 25: The method as in any one of Aspects 17 to 24 further includes: identifying a first gain associated with a first operating frequency and a direction of a beam in an operating frequency set and a second gain associated with a second operating frequency and a second direction of the second beam in the operating frequency set based at least in part on a mapping, wherein the identification parameter is at least in part based on identifying the first gain and the second gain.

[0236] Aspect 26: The method of any one of Aspects 17 to 25, further comprising: receiving a request for a mapping from a user equipment, wherein transmitting the mapping is based at least in part on transmitting the request.

[0237] Aspect 27: A method as in any one of Aspects 17 to 26, further comprising: identifying an offset between a parameter of a synchronization signal block transmitted using a first operating frequency of a frequency band relative to a second parameter of a second synchronization signal block transmitted using a second operating frequency of the frequency band, wherein the transmission mapping is at least partially based on identifying the offset.

[0238] Aspect 28: The method of any one of Aspects 17 to 27, further comprising: communicating information using an operating frequency in the set of operating frequencies based at least in part on monitoring a synchronization signal block.

[0239] Aspect 29: A method as in any one of Aspects 17 to 28, wherein the mapping is included in an SIB, a master information block (MIB), RRC signaling, a DCI, or a combination thereof; and the mapping includes an indication of one or more synchronization signal block groups and one or more synchronization signal block sets in one or more synchronization signal block groups.

[0240] Aspect 30: A method as in any one of Aspects 17 to 29, wherein the synchronization data block is transmitted on a first set of synchronization signal block resource sets in the used frequency band.

[0241] Aspect 31: An apparatus for performing wireless communications at a UE, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory, which instructions can be executed by the processor to enable the apparatus to perform a method as described in any one of Aspects 1 to 16.

[0242] Aspect 32: An apparatus for wireless communication at a UE, comprising at least one device for performing the method of any one of Aspects 1 to 16.

[0243] Aspect 33: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 16.

[0244] Aspect 34: An apparatus for performing wireless communications at a base station, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in any one of Aspects 17 to 30.

[0245] Aspect 35: An apparatus for wireless communication at a base station, comprising at least one means for performing the method of any one of Aspects 17 to 30.

[0246] Aspect 36: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 17 to 30.

[0247] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0248] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0249] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0250] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0251] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer-readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then this coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of computer-readable medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0252] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0253] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0254] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0255] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the universal principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: receiving a mapping between a set of synchronization signal block resources and a set of operating frequencies within a frequency band, the mapping corresponding to a set of synchronization signal block indices; Identify an operating frequency and a direction of a beam in the operating frequency set for transmitting a synchronization signal block; Identify a synchronization signal block index in the synchronization signal block index set corresponding to the identified operating frequency for transmitting the synchronization signal block and the direction of the beam; as well as The synchronization signal block is monitored according to the identified synchronization signal block index.

2. The method of claim 1, wherein identifying the synchronization signal block index comprises: The synchronization signal block index is identified within a synchronization signal block set according to the frequency band and the direction, wherein monitoring the synchronization signal block is performed based on identifying the synchronization signal block index.

3. The method of claim 1, further comprising: The operating frequency in the operating frequency set for transmitting the synchronization signal block is identified, wherein identifying the synchronization signal block index is performed according to identifying the operating frequency in the operating frequency set.

4. The method of claim 1, further comprising: The frequency band and the direction of the beam are identified based on receiving the mapping, wherein identifying the synchronization signal block index is performed based on identifying the frequency band and the direction.

5. The method of claim 1 , wherein receiving the mapping comprises: The mapping is received from a network entity, the mapping further comprising an association between a set of operating frequencies within the frequency band and parameters of synchronization signal blocks communicated using the set of operating frequencies included in the mapping.

6. The method of claim 1, further comprising: A message indicating the mapping is transmitted to a network entity, wherein the mapping further includes an association between the set of operating frequencies within the frequency band and parameters of synchronization signal blocks communicated using the set of operating frequencies included in the mapping.

7. The method of claim 6, further comprising: An indication of a second operating frequency in the set of operating frequencies for reporting beam measurements is transmitted, wherein the indication is included in the message.

8. The method of claim 1, further comprising: identifying a set of reference signal resources associated with the synchronization signal block based on the mapping and the operating frequency; as well as Information is conveyed using the set of reference signal resources.

9. The method of claim 8, further comprising: It is determined that the operating frequency in the set of operating frequencies satisfies a criterion, wherein the set of reference signal resources is associated with the operating frequency.

10. The method of claim 1, further comprising: A first gain associated with a first operating frequency in the operating frequency set and a direction of the beam and a second gain associated with a second operating frequency in the operating frequency set and a second direction of the second beam are identified based on the received mapping, wherein identifying the synchronization signal block index is performed based on identifying the first gain and the second gain.

11. The method of claim 1, further comprising: A request for the mapping is transmitted, wherein receiving the mapping is responsive to transmitting the request.

12. The method of claim 1, further comprising: Based on receiving the mapping, an offset between an index of the synchronization signal block delivered using a first operating frequency of the frequency band relative to a second index of a second synchronization signal block delivered using a second operating frequency of the frequency band is identified, wherein monitoring the synchronization signal blocks is performed based on identifying the offset.

13. The method of claim 1, further comprising: Information is communicated using the operating frequencies in the set of operating frequencies based on monitoring the synchronization signal blocks.

14. The method of claim 1, wherein: The mapping is included in a system information block (SIB), a master information block (MIB), a radio resource control (RRC) signaling, downlink control information (DCI), or a combination thereof; and The mapping includes an indication of one or more synchronization signal block groups and one or more synchronization signal block sets in the one or more synchronization signal block groups.

15. A user equipment (UE), comprising: one or more memories storing processor-executable code; as well as One or more processors, the one or more processors being coupled to the one or more memories and being individually or collectively operable to execute the code so that the UE: receiving a mapping between a set of synchronization signal block resources and a set of operating frequencies within a frequency band, the mapping corresponding to a set of synchronization signal block indices; Identify an operating frequency and a direction of a beam in the operating frequency set for transmitting a synchronization signal block; Identify a synchronization signal block index in the synchronization signal block index set corresponding to the identified operating frequency for transmitting the synchronization signal block and the direction of the beam; as well as The synchronization signal block is monitored according to the identified synchronization signal block index.

16. The UE according to claim 15, wherein: To identify the synchronization signal block index, the one or more processors are individually or collectively operable to execute the code so that the UE: The synchronization signal block index is identified within a synchronization signal block set according to the frequency band and the direction, wherein monitoring the synchronization signal block is performed based on identifying the synchronization signal block index.

17. The UE of claim 15, wherein the one or more processors are further operable individually or collectively to execute the code so that the UE: The operating frequency in the operating frequency set for transmitting the synchronization signal block is identified, wherein identifying the synchronization signal block index is performed according to identifying the operating frequency in the operating frequency set.

18. The UE of claim 15, wherein the one or more processors are further operable individually or collectively to execute the code so that the UE: The frequency band and the direction of the beam are identified based on receiving the mapping, wherein identifying the synchronization signal block index is performed based on identifying the frequency band and the direction.

19. The UE of claim 15, wherein to receive the mapping, the one or more processors are individually or collectively operable to execute the code so that the UE: The mapping is received from a network entity, the mapping further comprising an association between a set of operating frequencies within the frequency band and parameters of synchronization signal blocks communicated using the set of operating frequencies included in the mapping.

20. A user equipment (UE) for wireless communication, comprising: means for receiving a mapping between a set of synchronization signal block resources and a set of operating frequencies within a frequency band, the mapping corresponding to a set of synchronization signal block indices; means for identifying an operating frequency and a direction of a beam in said operating frequency set for delivering a synchronization signal block; means for identifying a synchronization signal block index in the synchronization signal block index set corresponding to the identified operating frequency for delivering the synchronization signal block and the direction of the beam; as well as Means for monitoring the synchronization signal block according to the identified synchronization signal block index.

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