Techniques for determining the physical broadcast channel symbols for synchronization signal blocks with time-division multiplexing symbols.

Abstract

Various aspects of this disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) can receive a synchronization signal block (SSB) with time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including physical broadcast channel (PBCH) symbols and one or more of primary synchronization signal (PSS) symbols, secondary synchronization signal (SSS) symbols, or demodulation reference signal (DMRS) symbols. The UE can demodulate the PBCH symbols using channel estimation of the PBCH symbols, the channel estimation being at least in part based on channel estimations of one or more PSS symbols, SSS symbols, or DMRS symbols. Many other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Patent Application No. 17 / 127,677, filed December 18, 2020, entitled “TECHNIQUES FOR DETERMINING ACHANNEL ESTIMATION FOR A PHYSICAL BROADCAST CHANNEL SYMBOL OF ASYNCHRONIZATION SIGNAL BLOCK WITH TIME DIVISION MULTIPLEXED SYMBOLS”, which is expressly incorporated herein by reference. Technical Field

[0003] Various aspects of this disclosure generally relate to wireless communication, and specifically to techniques and apparatus for determining channel estimation of physical broadcast channel symbols for a synchronization signal block having time-division multiplexed symbols. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is an enhanced set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the BS via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmit / Receive Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, country, region, and even global levels. NR (also known as 5G) is an enhancement set of the LTE mobile standard issued by 3GPP. NR is designed to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards by using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), and to better support mobile broadband internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL). Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving a synchronization signal block (SSB) with time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including a physical broadcast channel (PBCH) symbol and one or more of a primary synchronization signal (PSS) symbol, a secondary synchronization signal (SSS) symbol, or a demodulation reference signal (DMRS) symbol; and demodulating the PBCH symbol using a channel estimate of the PBCH symbol, the channel estimate being at least in part based on one or more channel estimates of the PSS symbol, the SSS symbol, or the DMRS symbol.

[0008] In some aspects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and wherein the method further includes: determining a first channel estimate for the DMRS symbol, determining a second channel estimate for the SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0009] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located between the first SSS symbol and the second SSS symbol in time, and wherein the method further includes: determining a first channel estimate of the first SSS symbol, determining a second channel estimate of the second SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0010] In some aspects, the method includes determining a cell identifier (ID) associated with an SSB based at least in part on a sequence detected in a first SSS symbol, or determining a cell ID associated with an SSB based at least in part on a first sequence detected in a first SSS symbol and a second sequence detected in a second SSS symbol.

[0011] In some aspects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the method further includes: determining a first channel estimate of the PSS symbol, determining a second channel estimate of one of the SSS symbol or the DMRS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0012] In some aspects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the method further includes: determining a channel estimate of the PSS symbol, and determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the PSS symbol.

[0013] In some aspects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located between the PSS symbol and the PBCH symbol in time, and wherein the method further includes: determining a channel estimate of the DMRS symbol or the SSS symbol, and determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the DMRS symbol or the SSS symbol.

[0014] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0015] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0016] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0017] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0018] In some aspects, the method includes determining the frequency offset of a PBCH symbol based at least in part on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0019] In some aspects, a UE for wireless communication includes a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: receive an SSB having time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols; and demodulate the PBCH symbols using channel estimation of the PBCH symbols, the channel estimation being at least in part based on channel estimation of one or more PSS symbols, SSS symbols, or DMRS symbols.

[0020] In some aspects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and wherein the one or more processors are further configured to: determine a first channel estimate for the DMRS symbol, determine a second channel estimate for the SSS symbol, and interpolate the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0021] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the one or more processors are further configured to: determine a first channel estimate of the first SSS symbol, determine a second channel estimate of the second SSS symbol, and interpolate the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0022] In some aspects, the one or more processors are also configured to: determine the cell ID associated with the SSB based at least in part on a sequence detected in a first SSS symbol, or at least in part on a first sequence detected in a first SSS symbol and a second sequence detected in a second SSS symbol.

[0023] In some aspects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the one or more processors are further configured to: determine a first channel estimate of the PSS symbol, determine a second channel estimate of one of the SSS symbol or the DMRS symbol, and interpolate the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0024] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the one or more processors are further configured to: determine a channel estimate for the PSS symbol, and determine a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0025] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and a DMRS symbol or an SSS symbol, wherein the DMRS symbol or SSS symbol is located between the PSS symbol and the PBCH symbol in time, and wherein the one or more processors are further configured to: determine a channel estimate of the DMRS symbol or SSS symbol, and determine a channel estimate of the PBCH symbol based at least in part on the channel estimate of the DMRS symbol or SSS symbol.

[0026] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0027] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0028] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0029] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0030] In some respects, the one or more processors are also configured to determine the frequency offset of the PBCH symbol based at least in part on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0031] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions, which, when executed by one or more processors of a UE, cause the UE to: receive an SSB having time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols; and demodulate the PBCH symbols using channel estimation of the PBCH symbols, the channel estimation being at least in part based on one or more channel estimates of the PSS symbols, SSS symbols, or DMRS symbols.

[0032] In some respects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and wherein the one or more instructions further cause the UE to: determine a first channel estimate for the DMRS symbol, determine a second channel estimate for the SSS symbol, and interpolate the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0033] In some respects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located between the first SSS symbol and the second SSS symbol in time, and wherein the one or more instructions further cause the UE to: determine a first channel estimate of the first SSS symbol, determine a second channel estimate of the second SSS symbol, and interpolate the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0034] In some respects, the one or more instructions also cause the UE to: determine the cell ID associated with the SSB based at least in part on a sequence detected in the first SSS symbol, or to determine the cell ID associated with the SSB based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0035] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or DMRS symbols, and wherein the one or more instructions further cause the UE to: determine a first channel estimate of the PSS symbol, determine a second channel estimate of one of the SSS symbol or DMRS symbols, and interpolate the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0036] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the one or more instructions further cause the UE to: determine a channel estimate for the PSS symbol, and determine a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0037] In some respects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located between the PSS symbol and the PBCH symbol in time, and wherein the one or more instructions further cause the UE to: determine the channel estimate of the DMRS symbol or the SSS symbol, and determine the channel estimate of the PBCH symbol based at least in part on the channel estimate of the DMRS symbol or the SSS symbol.

[0038] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0039] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0040] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0041] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0042] In some respects, the one or more instructions also cause the UE to determine the frequency offset of the PBCH symbol based at least in part on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0043] In some aspects, an apparatus for wireless communication includes: means for receiving an SSB having time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols; and means for demodulating PBCH symbols using channel estimation of the PBCH symbols, the channel estimation being at least partially based on one or more channel estimates of the PSS symbols, SSS symbols, or DMRS symbols.

[0044] In some aspects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and further includes: components for determining a first channel estimate of the DMRS symbol, components for determining a second channel estimate of the SSS symbol, and components for interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0045] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located between the first SSS symbol and the second SSS symbol in time, and further includes: components for determining a first channel estimate of the first SSS symbol, components for determining a second channel estimate of the second SSS symbol, and components for interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0046] In some aspects, the apparatus includes components for determining a cell ID associated with an SSB based at least in part on a sequence detected in a first SSS symbol, or for determining a cell ID associated with an SSB based at least in part on a first sequence detected in a first SSS symbol and a second sequence detected in a second SSS symbol.

[0047] In some aspects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and further includes: components for determining a first channel estimate of the PSS symbol, components for determining a second channel estimate of one of the SSS symbol or the DMRS symbol, and components for interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0048] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and further includes: components for determining a channel estimate of the PSS symbol, and components for determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the PSS symbol.

[0049] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and a DMRS symbol or an SSS symbol, wherein the DMRS symbol or SSS symbol is located between the PSS symbol and the PBCH symbol in time, and further includes: a component for determining a channel estimate of the DMRS symbol or the SSS symbol, and a component for determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the DMRS symbol or the SSS symbol.

[0050] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0051] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0052] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0053] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0054] In some aspects, the apparatus includes components for determining the frequency offset of a PBCH symbol based at least in part on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0055] In some aspects, a method of wireless communication performed by a base station includes: configuring time-division multiplexing symbols for an SSB, the time-division multiplexing symbols including PBCH symbols and one or more symbols selected from PSS symbols, SSS symbols, or DMRS symbols; transmitting the SSB via single-carrier communication, wherein the PBCH is configured to demodulate using channel estimation of the PBCH symbols, the channel estimation being at least partially based on channel estimation of one or more PSS symbols, SSS symbols, or DMRS symbols.

[0056] In some respects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located in time between the DMRS symbol and the SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the DMRS symbol, the determination of a second channel estimate for the SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first and second channel estimates.

[0057] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the first SSS symbol, the determination of a second channel estimate for the second SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0058] In some respects, the SSB indicates the cell ID associated with the SSB based at least in part on a sequence in the first SSS symbol, or the SSB indicates the cell based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0059] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is time-located between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the PSS symbol, the determination of a second channel estimate for one of the SSS symbol or the DMRS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0060] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the PBCH is configured to be demodulated at least in part based on: the determination of a channel estimate for the PSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0061] In some respects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a channel estimate for the DMRS symbol or the SSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the DMRS symbol or the SSS symbol.

[0062] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0063] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0064] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0065] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0066] In some respects, the frequency offset of the PBCH symbol is configured to be determined at least in part based on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0067] In some aspects, a base station for wireless communication includes: a memory; and one or more processors operatively coupled to the memory, the memory and the processors being configured to: configure time-division multiplexed symbols for a synchronization signal block (SSB), the time-division multiplexed symbols including a physical broadcast channel (PBCH) symbol and one or more of a primary synchronization signal (PSS) symbol, a secondary synchronization signal (SSS) symbol, or a demodulation reference signal (DMRS) symbol; and transmit the SSB via single-carrier communication, wherein the PBCH symbol is configured to be demodulated using a channel estimate of the PBCH symbol, the channel estimate being at least in part based on one or more channel estimates of the PSS symbol, the SSS symbol, or the DMRS symbol.

[0068] In some respects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located in time between the DMRS symbol and the SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the DMRS symbol, the determination of a second channel estimate for the SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0069] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the first SSS symbol, the determination of a second channel estimate for the second SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0070] In some respects, the SSB indicates the cell ID associated with the SSB based at least in part on a sequence in the first SSS symbol, or the SSB indicates the cell based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0071] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is time-located between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the PSS symbol, the determination of a second channel estimate for one of the SSS symbol or the DMRS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0072] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the PBCH is configured to be demodulated at least in part based on: the determination of a channel estimate for the PSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0073] In some respects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a channel estimate for the DMRS symbol or the SSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the DMRS symbol or the SSS symbol.

[0074] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0075] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0076] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0077] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0078] In some respects, the frequency offset of the PBCH symbol is configured to be determined at least in part based on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0079] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions, which, when executed by one or more processors of a base station, cause the base station to: configure time-division multiplexed symbols for an SSB, the time-division multiplexed symbols including PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols; and transmit the SSB via single-carrier communication, wherein the PBCH is configured to demodulate using a channel estimate of the PBCH symbols, the channel estimate being at least in part based on one or more channel estimates of the PSS symbols, SSS symbols, or DMRS symbols.

[0080] In some respects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located in time between the DMRS symbol and the SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the DMRS symbol, the determination of a second channel estimate for the SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first and second channel estimates.

[0081] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the first SSS symbol, the determination of a second channel estimate for the second SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0082] In some respects, the SSB indicates the cell ID associated with the SSB based at least in part on a sequence in the first SSS symbol, or the SSB indicates the cell based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0083] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is time-located between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the PSS symbol, the determination of a second channel estimate for one of the SSS symbol or the DMRS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0084] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the PBCH is configured to be demodulated at least in part based on: the determination of a channel estimate for the PSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0085] In some respects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a channel estimate for the DMRS symbol or the SSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the DMRS symbol or the SSS symbol.

[0086] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0087] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0088] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0089] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0090] In some respects, the frequency offset of the PBCH symbol is configured to be determined at least in part based on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0091] In some aspects, an apparatus for wireless communication includes components for configuring time-division multiplexing symbols for an SSB, the time-division multiplexing symbols including PBCH symbols and one or more symbols selected from PSS symbols, SSS symbols, or DMRS symbols; and components for transmitting the SSB via single-carrier communication, wherein the PBCH is configured to demodulate using a channel estimate of the PBCH symbols, the channel estimate being at least partially based on one or more channel estimates of the PSS symbols, SSS symbols, or DMRS symbols.

[0092] In some respects, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located in time between the DMRS symbol and the SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the DMRS symbol, the determination of a second channel estimate for the SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first and second channel estimates.

[0093] In some aspects, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the first SSS symbol, the determination of a second channel estimate for the second SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0094] In some respects, the SSB indicates the cell ID associated with the SSB based at least in part on a sequence in the first SSS symbol, or the SSB indicates the cell based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0095] In some respects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is time-located between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a first channel estimate for the PSS symbol, the determination of a second channel estimate for one of the SSS symbol or the DMRS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0096] In some respects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the PBCH is configured to be demodulated at least in part based on: the determination of a channel estimate for the PSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0097] In some respects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a channel estimate for the DMRS symbol or the SSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the DMRS symbol or the SSS symbol.

[0098] In some respects, PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0099] In some respects, one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as the PBCH.

[0100] In some respects, the SSB is indicated at least in part by a sequence of one or more of the PSS symbols or SSS symbols, or by an indication within the PBCH symbols.

[0101] In some respects, SSB includes PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0102] In some respects, the frequency offset of the PBCH symbol is configured to be determined at least in part based on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0103] The terms generally include, as described herein with reference to the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment, and / or processing systems.

[0104] The foregoing has already provided a fairly broad overview of the features and technical advantages of the examples according to this disclosure in order to better understand the detailed description that follows. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent structures do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, their organization and operation, together with their associated advantages, will be better understood from the following description when considered in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not as a definition of limitation of the claims. Attached Figure Description

[0105] To gain a more detailed understanding of the foregoing features of this disclosure, a more specific description of the above brief overview can be provided by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as the description may acknowledge other equally valid aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0106] Figure 1 This is a diagram illustrating an example of a wireless network according to various aspects of this disclosure.

[0107] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to various aspects of this disclosure.

[0108] Figure 3 This is a diagram illustrating an example of a system information block according to various aspects of this disclosure.

[0109] Figures 4-5H This is a diagram illustrating an example of a technique associated with channel estimation for determining physical broadcast channel symbols for a synchronization signal block having time-division multiplexed symbols, according to various aspects of this disclosure.

[0110] Figure 6 and Figure 7 This is a diagram illustrating an example process associated with a technique for determining the physical broadcast channel symbol for a synchronization signal block having time-division multiplexed symbols, according to various aspects of this disclosure.

[0111] Figure 8 and Figure 9 This is a block diagram of an example device for wireless communication according to various aspects of this disclosure. Detailed Implementation

[0112] The various aspects of this disclosure will be described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms, and it should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided to make this disclosure comprehensive and complete, and to fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using structures, functions, or structures and functions other than those set forth herein or different from those set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be implemented by one or more elements of the claims.

[0113] Several aspects of a telecommunications system will now be presented with reference to various devices and technologies. These devices and technologies will be described in the following detailed description and illustrated in the accompanying drawings by various boxes, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such an element is implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0114] It should be noted that although aspects may be described herein using terms commonly associated with 5G or NR radio access technology (RAT), aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G).

[0115] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to various aspects of this disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, etc. The wireless network 100 may include multiple base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving this coverage area, depending on the context in which the term is used.

[0116] A Base Station (BS) can provide communication coverage for macrocells, picocells, femtocells, and / or other cell types. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and allows unrestricted access by UEs with a service subscription. A picocell can cover a relatively small geographic area and allows unrestricted access by UEs with a service subscription. A femtocell can cover a relatively small geographic area (e.g., a home) and allows restricted access by UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS for a macrocell can be called a macro BS. A BS for a picocell can be called a pico BS. A BS for a femtocell can be called a femto BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS of macro cell 102a, BS 110b can be a pico BS of pico cell 102b, and BS 110c can be a femto BS of femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably in this document.

[0117] In some respects, the cell is not necessarily fixed, and the geographical area of ​​the cell can move depending on the location of the mobile BS. In some respects, BSs can interconnect with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network through various types of backhaul interfaces (such as direct physical connections or virtual networks).

[0118] The wireless network 100 may also include relay stations. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., a BS or UE) and transmitting data transmissions to a downstream station (e.g., a UE or BS). A relay station can also be a UE capable of relaying transmissions to other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, relay, etc.

[0119] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0120] Network controller 130 can be coupled to a collection of BSs and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other (e.g., directly or indirectly via wireless or wired backhaul).

[0121] UEs 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or apparatus, a biosensor / device, a wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing apparatus, a GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0122] Some UEs can be considered as Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. For example, MTC and eMTC UEs include robots, drones, remote devices, sensors, meters, monitors, and / or location tags that can communicate with base stations, another device (e.g., remote devices), or other entities. For example, a wireless node can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered as Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered as Customer Premises Equipment (CPE). UE 120 can be included within a housing that houses the components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0123] Typically, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, channel, etc. Within a given geographical area, each frequency can support a single RAT to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0124] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using base station 110 as a medium for communication with each other). For example, UEs 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, or vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0125] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1), which can span from 410 MHz to 7.125 GHz, and / or can communicate using an operating band with a second frequency range (FR2), which can span from 24.25 GHz to 52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred to as intermediate frequency (IF) bands. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. Similarly, FR2 is often referred to as the "millimeter wave" band, although this is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as "millimeter wave" by the International Telecommunication Union (ITU). Therefore, unless otherwise specified, it should be understood that the terms "sub-6 GHz" and the like (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequency band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specified, it should be understood that the terms "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequency band frequencies (e.g., less than 24.25 GHz). Modifications to the frequencies included in FR1 and FR2 are anticipated, and the techniques described herein are applicable to those modified frequency ranges.

[0126] As mentioned above, Figure 1 Provided as an example. Other examples may be provided for... Figure 1 The content described is different.

[0127] Figure 2This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to various aspects of this disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein typically T ≥ 1 and R ≥ 1.

[0128] At base station 110, transmit processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from the UE, process (e.g., code and modulate) the data for each UE based at least in part on the selected MCS(s) for the UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 can also process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t respectively.

[0129] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can also process the input sample (e.g., for OFDM) to obtain the received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as the Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or Channel Quality Indicator (CQI). In some aspects, one or more components of the UE 120 may be included within the housing 284.

[0130] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0131] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, or may be included in one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmitting and / or receiving components (such as...) Figure 2 One or more antenna elements (one or more components).

[0132] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, and / or CQI). The transmitting processor 264 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 can be pre-encoded (if applicable) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of UE 120 can be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antenna(s) 252, modulator and / or demodulator 254, MIMO detector 256, receiver processor 258, transmitter processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein.

[0133] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communication. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes transceivers. The transceiver may include any combination of antenna(s) 234, modulator and / or demodulator 232, MIMO detector 236, receiver processor 238, transmitter processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein.

[0134] As described in more detail elsewhere in this document, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2Any other component(s) may perform one or more techniques associated with the techniques used to determine the physical broadcast channel symbols for a synchronization signal block having time-division multiplexed symbols. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component(s) can perform or direct, for example Figure 6 Process 600 Figure 7 The process 700 and / or other processing described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, translation, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example... Figure 8 The process 800 Figure 9 The operation of process 900 and / or other processes as described herein. In some aspects, execution instructions may include run instructions, translation instructions, compilation instructions, and / or interpretation instructions.

[0135] In some aspects, the UE includes components for receiving a synchronization signal block (SSB) with time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including physical broadcast channel (PBCH) symbols and one or more of primary synchronization signal (PSS) symbols, secondary synchronization signal (SSS) symbols, or demodulation reference signal (DMRS) symbols; or components for demodulating PBCH symbols using channel estimation of PBCH symbols, the channel estimation being at least partially based on channel estimation of one or more of PSS symbols, SSS symbols, or DMRS symbols. Components for the UE to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0136] In some aspects, the UE includes components for determining a first channel estimate for DMRS symbols, components for determining a second channel estimate for SSS symbols, and components for interpolating channel estimates for PBCH symbols based at least in part on the first and second channel estimates.

[0137] In some aspects, the UE includes components for determining a first channel estimate for a first SSS symbol, components for determining a second channel estimate for a second SSS symbol, and components for interpolating a channel estimate for a PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0138] In some aspects, the UE includes components for determining a cell identifier (ID) associated with an SSB based at least in part on a sequence detected in a first SSS symbol, or for determining a cell ID associated with an SSB based at least in part on a first sequence detected in a first SSS symbol and a second sequence detected in a second SSS symbol.

[0139] In some aspects, the UE includes components for determining a first channel estimate of a PSS symbol, components for determining a second channel estimate of one of the SSS symbol or DMRS symbol, and components for interpolating a channel estimate of a PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0140] In some aspects, the UE includes components for determining channel estimates of PSS symbols and components for determining channel estimates of PBCH symbols based at least in part on the channel estimates of PSS symbols.

[0141] In some aspects, the UE includes components for determining channel estimates for DMRS symbols or SSS symbols, and components for determining channel estimates for PBCH symbols based at least in part on the channel estimates for DMRS symbols or SSS symbols.

[0142] In some respects, the UE includes components for determining the frequency offset of a PBCH symbol based at least in part on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0143] In some aspects, the base station includes components for configuring time-division multiplexing symbols for the SSB, the time-division multiplexing symbols including PBCH symbols and one or more symbols selected from PSS symbols, SSS symbols, or DMRS symbols; and components for transmitting the SSB via single-carrier communication, wherein the PBCH is configured to demodulate using channel estimates of the PBCH symbols, the channel estimates being at least partially based on one or more channel estimates of the PSS symbols, SSS symbols, or DMRS symbols. Components for the base station to perform the operations described herein may include one or more of, for example, a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0144] As mentioned above, providing Figure 2 As an example. Other examples may differ from those regarding... Figure 2 The content described.

[0145] Figure 3 This is a diagram illustrating example 300 of system information blocks according to various aspects of this disclosure. (See diagram 300 for example.) Figure 3 As shown, an SSB may include a PSS, an SSS, and one or more PBCHs.

[0146] The Subcarrier Spacing (SCS) can span four OFDM symbols, with one symbol used for the PSS, two symbols for the PBCH, and one symbol including the SSS shared with the PBCH. The subcarrier spacing (SCS) of the SSB can depend on the frequency range of the SSB. For example, for an SSB in FR1, the SCS could be 15 kHz or 30 kHz, etc. For an SSB in FR2, the SCS could be 120 kHz or 240 kHz, etc.

[0147] The PSS can use a length of 127 subcarriers (e.g., subcarriers 56 to 182) to indicate a frequency-domain-based M-sequence (e.g., mapped to 127 subcarriers). The PSS can have 3 possible orders. The SSS can use a length of 127 subcarriers (e.g., subcarriers 56 to 182) to indicate a frequency-domain-based Gold code sequence (mapped to two M-sequences of 127 subcarriers). The SSS can have 336 possible orders. The SSS and PSS can have a total of 1008 possible combined sequences.

[0148] The PSS may have unknown timing and / or frequency. During the initial search, the UE can use sliding window and correlation techniques to find the PSS. For each timing hypothesis, the UE can try to resolve Doppler, internal clock frequency offset, and / or frequency error, etc., using all 3 possible sequences and N frequency hypotheses. Once the UE detects the PSS, the UE can determine the symbol timing, initial frequency offset estimate, and a portion of the cell ID (e.g., cell ID portion 2 with 1 of 3 possible values).

[0149] The UE can detect the SSS using the timing and / or frequency determined from the PSS. Based on the SSS, the UE can determine another part of the cell ID (e.g., cell ID part 1 with 1 of 336 possible values). The UE can determine the cell ID based at least in part on the cell ID part indicated by the PSS and the cell ID part indicated by the SSS (e.g., 3 x cell ID part 1 + cell ID part 2). Additionally or alternatively, based at least in part on the 2M sequences (Gold codes) used to determine the SSS, the UE can determine the cyclic shift of the SSB.

[0150] The UE can detect the PBCH using timing and / or frequency determined from the PSS. The PBCH may include a Master Information Block (MIB) (e.g., higher-level radio resource control signaling), which may be multiplexed and / or encoded. The PBCH may be quadrature phase shift keying (QPSK) modulated and may be coherently demodulated (e.g., the frequency domain multiplexed with the PBCH data) using DMRS transmitted with the PBCH.

[0151] DMRS can be interleaved with PBCH data on resource elements (e.g., every other subcarrier). The UE can use DMRS to estimate the channel including PBCH symbols. The channel estimate can be used to demodulate PBCH data. Additionally or alternatively, based at least in part on the DMRS sequence index associated with the DMRS, DMRS may include the three least significant bits (LSBs) of the SSB index per half-frame.

[0152] As mentioned above, providing Figure 3 As an example. Other examples may differ from those regarding... Figure 3 The content described.

[0153] In some wireless networks, such as those operating at relatively high frequency bands (e.g., greater than 100 GHz), Figure 3 The SSB described in the document may present challenges. For example, communication using relatively high-frequency bands may have relatively high phase noise, which may require a relatively large SCS. A relatively large SCS may result in relatively short symbols (e.g., based at least in part on the inverse correlation between SCS and symbol length). Relatively short symbols may require the receiving device (e.g., UE) to perform a Fast Fourier Transform (FFT) on the received signal within a relatively short time. This amount of time may be insufficient for the receiving device, potentially leading to communication errors.

[0154] To improve communication in wireless networks operating at relatively high frequency bands, single-carrier frequency domain (FD) communication (e.g., Direct Fourier Transform Spread Spectrum OFDM (DFT-S-OFDM) communication) can be used. Among other improvements, single-carrier FD communication can improve the peak-to-average power ratio (e.g., improve coverage), can be received via single-tap frequency domain equalization, and / or can reduce and / or eliminate the need for guard bands (e.g., to improve bandwidth utilization). However, single-carrier FD communication may prevent the SSB from using frequency division multiplexing to provide the PBCH to the DMRS. This can impair channel estimation of the PBCH, potentially at least in part due to the UE's failure to properly demodulate the PBCH, thus consuming the UE's power, computational, and / or communication resources.

[0155] In some aspects described herein, a base station of a wireless network can transmit and a UE can receive an SSB with time-division multiplexed symbols, including PBCH symbols and PSS symbols, SSS symbols, and / or DMRS symbols. The UE can perform channel estimation for the PSS symbols, SSS symbols, and / or DMRS symbols, and then use the channel estimation for the PSS symbols, SSS symbols, and / or DMRS symbols to determine a channel estimation for the PBCH symbols. For example, the UE can interpolate from two or more of the PSS symbols, SSS symbols, and / or DMRS symbols to determine the channel estimation for the PBCH symbols. In some aspects, the UE can extrapolate from one or more of the PSS symbols, SSS symbols, and / or DMRS symbols to determine the channel estimation for the PBCH symbols. In some aspects, the UE can refine the channel estimation (e.g., refine the frequency offset estimation used for channel estimation) based at least in part on the DMRS symbols of a subsequent reference signal.

[0156] The channel estimation of the PBCH symbol is determined at least in part based on the channel estimation of the UE using the PSS symbol, SSS symbol and / or DMRS symbol. The UE can improve the demodulation of the PBCH symbol (e.g., when the PBCH symbol does not include DMRS), which can save the UE's power, computation and / or communication resources, otherwise at least in part based on the UE's failure to properly demodulate the PBCH, which may have already been used.

[0157] Figure 4 This is a diagram illustrating an example 400 associated with a technique for determining the channel estimation of a PBCH symbol for an SSB having time-division multiplexed symbols, according to various aspects of this disclosure. Figure 4 As shown, a UE (e.g., UE 120) can communicate with a base station (e.g., base station 110). The UE and the base station can be part of a wireless network (e.g., wireless network 100). In some aspects, the UE and the base station can be configured to communicate using relatively high frequency bands (e.g., above 60 GHz and / or above 100 GHz, among other examples).

[0158] As shown by reference numeral 405 in the attached figure, the base station can transmit and the UE can receive configuration information. In some aspects, the UE can receive configuration information and / or communication standards from another device (e.g., from another base station and / or another UE), etc. In some aspects, the UE can receive configuration information via one or more of Radio Resource Control (RRC) signaling, Media Access Control (MAC) Control Element (CE) signaling, or Downlink Control Information (DCI) signaling, and / or the UE can determine the configuration information according to the communication standards, etc. In some aspects, the configuration information may include indications of one or more configuration parameters (e.g., known to the UE) for the UE to select, explicit configuration information for the UE to configure the UE, etc.

[0159] In some aspects, the configuration information may instruct the UE to receive the SSB via single-carrier communication (e.g., from one base station or another). In other aspects, the configuration information may instruct the UE to determine the channel estimate of the PBCH symbol of the SSB based at least in part on one or more channel estimates of one or more other symbols of the SSB. For example, the configuration information may instruct the UE to determine the channel estimate of the PBCH symbol based at least in part on the determination of channel estimates of one or more of the PSS, SSS, and / or DMRS of the SSB.

[0160] As shown by reference numeral 410 in the attached figure, the UE can be configured to communicate with a base station. In some aspects, the UE can be configured at least in part based on configuration information. In some aspects, the UE can be configured to perform one or more of the operations described herein.

[0161] As shown by reference numeral 415 in the attached figure, the base station can configure time-division multiplexing symbols for the SSB, which include PBCH symbols and PSS symbols, SSS symbols, and / or DMRS symbols. In some aspects, the base station can configure gaps (e.g., for beam switching) for the SSB at the end of the SSB (e.g., in time, after the PBCH and PSS, SSS, and / or DMRS symbols). In some aspects, the base station can configure the order of the SSB symbols to facilitate interpolation, extrapolation, and / or other techniques to estimate the channel of the PBCH symbol without using the DMRS in the PBCH symbol. For example, the base station can configure the symbol order to position the PBCH between one of the PSS, SSS, or DMRS symbols and another of the PSS, SSS, or DMRS symbols. In some aspects, the base station can immediately position the PBCH before the gap, so that the gap can be absorbed into the PBCH.

[0162] As shown by reference numeral 420 in the accompanying drawings, a UE can receive an SSB via single-carrier communication (e.g., using time-division multiplexing symbols), and a base station can transmit an SSB via single-carrier communication (e.g., using time-division multiplexing symbols). In some aspects, a base station can use its transmit beam to transmit an SSB to multiple UEs. In some aspects, a base station can use additional transmit beams to transmit additional SSBs. In some aspects, additional SSBs may include features similar to those of the SSBs described herein.

[0163] In some respects, the SSB may include PBCH symbols, DMRS symbols, and SSS symbols. The PBCH symbols may be located between the DMRS symbols and the SSS symbols in time. Thus, the UE can interpolate the channel estimate of the PBCH symbols based at least in part on the channel estimates of the DMRS symbols and the SSS symbols.

[0164] In some respects, the SSB may include a PBCH symbol, a first SSS symbol, and a second SSS symbol. The PBCH symbol may be located between the first SSS symbol and the second SSS symbol in time. Thus, the UE can interpolate the channel estimate of the PBCH symbol based at least in part on the channel estimate of the first SSS symbol and the channel estimate of the second SSS symbol.

[0165] In some respects, the SSB may include PBCH symbols, PSS symbols, and SSS symbols. The PBCH symbols may be located between the PSS symbols and the SSS symbols in time. Thus, the UE can interpolate the channel estimate of the PBCH symbols based at least in part on the channel estimates of the PSS symbols and the SSS symbols.

[0166] In some respects, the SSB may include PBCH symbols, DMRS symbols, and PSS symbols. The PBCH symbols may be located between the DMRS symbols and the PSS symbols in time. Thus, the UE can interpolate the channel estimate of the PBCH symbols based at least in part on the channel estimates of the DMRS symbols and the PSS symbols.

[0167] In some respects, the SSB may include a PBCH symbol and a PSS symbol. The PBCH symbol is temporally adjacent to the PSS symbol. Thus, the UE can use the channel estimate of the PSS symbol to determine (e.g., extrapolate) the channel estimate of the PBCH symbol.

[0168] In some respects, the SSB may include PBCH symbols, PSS symbols, and SSS symbols. The SSS symbols may be located between PBCH symbols and PSS symbols in time. Thus, the UE can determine (e.g., extrapolate) the channel estimate of the PBCH symbols based at least in part on the channel estimate of the SSS symbols.

[0169] In some respects, the SSB may include PBCH symbols, PSS symbols, and DMRS symbols. The DMRS symbols may be located between PBCH symbols and PSS symbols in time. Thus, the UE can determine (e.g., extrapolate) the channel estimate of the PBCH symbols based at least in part on the channel estimate of the DMRS symbols.

[0170] As shown by reference numeral 425 in the attached figure, the UE may determine one or more channel estimates (CHESTs) for PSS symbols, SSS symbols, and / or DMRS symbols. In some aspects, the UE may determine a matrix, at least in part, based on the channel estimates, to correct for channel conditions by multiplying it with the incoming signal. In other aspects, the UE may determine one or more channel estimates using one or more known sequences associated with the PSS symbols, SSS symbols, and / or DMRS symbols.

[0171] In some aspects, the UE can use a known DMRS sequence to determine the channel estimate of a DMRS symbol. In some aspects, the UE can determine the channel estimate of an SSS symbol after detecting an SSS sequence (e.g., for carrying SSS information such as a portion of the cell ID). In some aspects, the UE can determine the channel estimate of a PSS symbol after detecting a PSS sequence (e.g., for carrying SSS information such as a portion of the cell ID). In some aspects, the UE can determine a first channel estimate of one of the PSS symbol, SSS symbol, and / or DMRS symbol, and a second channel estimate of the other of the PSS symbol, SSS symbol, and / or DMRS symbol.

[0172] As shown by reference numeral 430 in the attached figure, the UE can use sequences in one or more SSS symbols to determine the cell ID. In some aspects, the UE can determine the cell ID associated with the SSB based at least in part on sequences in the first SSS symbol. The UE can apply sequences in the first SSS symbol to the second SSS symbol. Alternatively, the UE can determine the cell ID associated with the SSB based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol. In this way, the first SSS symbol and the second SSS symbol can carry different sequences, which can be combined to determine the cell ID.

[0173] As shown by reference numeral 435 in the attached figure, the UE may determine the channel estimate and / or frequency offset of a PBCH symbol using one or more channel estimates and / or one or more frequency offsets of a PSS symbol, SSS symbol, and / or DMRS symbol. In some aspects, the UE may determine the channel estimate and / or frequency offset of a PBCH symbol based at least in part on the channel estimate of an interpolated PBCH symbol, which is based at least in part on a first channel estimate associated with a first symbol (e.g., a PSS symbol, SSS symbol, or DMRS symbol) and a second channel estimate associated with a second symbol (e.g., a PSS symbol, SSS symbol, or DMRS symbol). In some aspects, the PBCH may be located in time between the first and second symbols.

[0174] In some aspects, the UE may determine the channel estimate and / or frequency offset of a PBCH symbol based at least in part on the channel estimate of the extrapolated PBCH symbol, which is based at least in part on the channel estimate associated with another symbol (e.g., a PSS symbol, an SSS symbol, or a DMRS symbol). In some aspects, this other symbol is temporally adjacent to the PBCH symbol (e.g., preceding it).

[0175] As shown by reference numeral 440 in the attached figure, the UE can use channel estimation and / or frequency offset of the PBCH symbol to demodulate the PBCH symbol. In some aspects, the UE can use channel estimation of the PBCH symbol to demodulate the PBCH symbol, which is at least partially based on one or more channel estimates of the PSS symbol, SSS symbol, or DMRS symbol.

[0176] As shown by reference numeral 445 in the attached figure, the UE and the base station can communicate at least partially based on the information indicated in the PBCH symbols. For example, the UE can receive one or more system information blocks at least partially based on the information indicated in the PBCH symbols, and / or can send random access channel messages to attempt to access the base station's cell, etc.

[0177] The channel estimation of the PBCH symbol is determined at least in part based on the channel estimation of the UE using the PSS symbol, SSS symbol and / or DMRS symbol. The UE can improve the demodulation of the PBCH symbol (e.g., when the PBCH symbol does not include DMRS), which can save the UE's power, computation and / or communication resources, otherwise at least in part based on the UE's failure to properly demodulate the PBCH, which may have already been used.

[0178] As mentioned above, providing Figure 4 As an example. Other examples may differ from those regarding... Figure 4 The content described.

[0179] Figures 5A-5H This is a diagram illustrating examples of techniques associated with channel estimation for PBCH symbols of an SSB having time-division multiplexing symbols, according to various aspects of this disclosure. Figures 5A-5H As shown, the SSB may include one or more symbols, including PBCH and PSS, SSS and / or DMRS. In some aspects, the SSB may be configured with a gap (e.g., a beam-switching gap) after PBCH, PSS, SSS and / or DMRS.

[0180] like Figure 5A As shown, Example 500A illustrates an SSB including a PSS symbol, a DMRS symbol, a PBCH symbol, and an SSS symbol. The SSB may also include a gap following the SSS symbol. As shown in Example 500A, the UE may perform PBCH channel estimation based at least in part on time-domain interpolation of channel estimates for the DMRS and SSS symbols. Additionally or alternatively, the UE may perform frequency offset estimation based at least in part on frequency offset estimates for the DMRS and SSS symbols.

[0181] In some respects, the UE can use the known DMRS sequence of the DMRS symbol to determine the channel estimate of the DMRS symbol. The UE can detect the sequence of SSS symbols and then use the detected sequence of SSS symbols to determine the channel estimate of the SSS symbols. In some respects, the UE can determine the sequence of SSS symbols from a relatively large number (e.g., 336) of possible SSS sequences.

[0182] The UE can also determine the cell ID based at least in part on the sequence of SSS symbols and the detection sequence of PSS symbols.

[0183] In some respects, they can be rearranged. Figure 5A The order of the symbols shown. For example, the DMRS symbol can be interchanged with the SSS symbol.

[0184] like Figure 5B As shown, Example 500B illustrates an SSB including a PSS symbol, a first SSS symbol, a PBCH symbol, and a second SSS symbol. The SSB may also include a gap following the second SSS symbol. As shown in Example 500B, the UE may perform channel estimation of the PBCH based at least in part on time-domain interpolation of channel estimates for the first and second SSS symbols. Additionally or alternatively, the UE may perform frequency offset estimation based at least in part on the frequency offset estimates for the first and second SSS symbols.

[0185] In some aspects, the first SSS symbol and the second SSS symbol may include the same SSS sequence from a relatively large number (e.g., 336) of possible SSS sequences. The UE may detect the sequence of the first SSS symbol and the second SSS symbol (e.g., the same sequence) and then use the detected sequence of the first SSS symbol and the second SSS symbol to determine the channel estimate of the first SSS symbol and the channel estimate of the second SSS symbol. In some aspects, the UE may determine the sequence of the SSS symbol from a relatively large number (e.g., 336) of possible SSS sequences. The detection of the sequence of the first SSS symbol may be complex (e.g., using a relatively large number of possible sequences), while the detection of the same sequence within the second SSS symbol may be simple (e.g., at least in part based on the sequence already detected in the first SSS symbol).

[0186] The UE can also determine the cell ID based at least in part on the sequence of the first SSS symbol and the detection sequence of the PSS symbol.

[0187] As shown in Example 500B, the SSB may omit the DMRS. Based at least in part on the omission of the DMRS by the SSB, the SSB may use information within the PSS sequence, SSS sequence, or PBCH symbols to transmit the LSB indexed by the SSB per half-frame. For example, the SSB may indicate the LSB indexed by the SSB based at least in part on increasing the number of possible PSS and / or SSS sequences used to interpret the LSB. Alternatively, the SSB may indicate the LSB in the MIB of the PBCH and / or via multiplexing the PBCH with the Layer 1 information of the PBCH.

[0188] like Figure 5C As shown, Example 500C illustrates an SSB including a PSS symbol, a first SSS symbol, a PBCH symbol, and a second SSS symbol. The SSB may also include a gap following the second SSS symbol. As shown in Example 500C, the UE may perform channel estimation of the PBCH based at least in part on time-domain interpolation of channel estimates for the first and second SSS symbols. Additionally or alternatively, the UE may perform frequency offset estimation based at least in part on the frequency offset estimates for the first symbol and the SSS symbols.

[0189] In some aspects, the first SSS symbol may include a first SSS sequence, and the second SSS symbol may include a second SSS sequence. In some aspects, the first SSS sequence may indicate a first part of the cell ID (e.g., a first part of cell ID part 1), and the second sequence may indicate a second part of the cell ID (e.g., a second part of cell ID part 1). In some aspects, each of the first and second SSS sequences can have reduced complexity, at least in part, based on including only a portion of cell ID part 1. For example, to indicate one of 336 possible cell IDs for cell ID part 1, the first SSS sequence may indicate one of 24 possible first parts of cell ID part 1, while the second SSS sequence may indicate one of 14 possible second parts of cell ID part 1. In this way, the detection complexity of the first SSS symbol can be reduced. This can save the UE's computational and / or power resources, which might otherwise have been used to attempt to detect cell ID part 1 by detecting SSS sequences from the 336 possible SSS sequences of the first SSS symbol.

[0190] like Figure 5D As shown, Example 500D illustrates an SSB that includes a PSS symbol, a PBCH symbol, and an SSS symbol. The SSB may not include a DMRS symbol (e.g., a DMRS symbol may be unnecessary for determining the channel estimation of the PBCH symbol). The SSB may also be included in the gap following the SSS symbol. As shown in Example 500D, the UE can perform PBCH channel estimation at least partially based on time-domain interpolation of the channel estimates for the PSS and SSS symbols. Additionally or alternatively, the UE can perform frequency offset estimation at least partially based on the frequency offset estimates for the PSS and SSS symbols.

[0191] In some respects, the UE can detect the PSS sequence of the PSS symbol and then use the detected sequence of the PSS symbol to determine the channel estimate of the PSS symbol. Similarly, the UE can detect the sequence of SSS symbols and then use the detected sequence of the SSS symbol to determine the channel estimate of the SSS symbol.

[0192] The UE can also determine the cell ID based at least in part on the sequence of SSS symbols and the detection sequence of PSS symbols.

[0193] like Figure 5EAs shown in Example 500E, an SSB including a PSS symbol, a PBCH symbol, and a DMRS symbol is illustrated. The SSB may also include a gap following the SSS symbol. As shown in Example 500E, the UE may perform channel estimation of the PBCH based at least in part on time-domain interpolation of channel estimates for the PSS and DMRS symbols. Additionally or alternatively, the UE may perform frequency offset estimation based at least in part on frequency offset estimates for the PSS and DMRS symbols.

[0194] As further illustrated in Example 500E, the SSB may not include the SSS symbol. In some wireless networks operating at relatively high frequencies, the base station may operate a relatively narrow beam to communicate with one or more UEs. In these wireless networks, communication may be limited at least in part based on the signal-to-noise ratio (SNR) (e.g., transmit power and / or power loss limits) rather than the signal-to-interference-plus-noise ratio (SNR) (e.g., limits based at least in part on interference from other communications). These wireless networks may require only a relatively small number of cell IDs because the cell ID is used to scramble messages to mitigate interference from other communications. For example, instead of using 1008 possible cell IDs, the wireless network may use 336, 128, 64, 32, 16, or 8 possible cell IDs. The base station can use the PSS to indicate the cell ID from the relatively small number of cell IDs, which helps to omit the SSS from the SSB.

[0195] In some respects, the UE can use the known DMRS sequence of the DMRS symbol to determine the channel estimate of the DMRS symbol. The UE can detect the sequence of the PSS symbol and then use the detected sequence of the PSS symbol to determine the channel estimate of the PSS symbol. In some respects, the UE can determine the sequence of the PSS symbol from a relatively small number (e.g., 128, 64, 32, 16, or 8) of possible PSS sequences.

[0196] like Figure 5F As shown, Example 500F illustrates an SSB including PSS symbols and PBCH symbols. The SSB may also include a gap following the SSS symbols. The UE may perform channel estimation of the PBCH based at least in part on the extrapolation of channel estimation for the PSS symbols. Additionally or alternatively, the UE may perform frequency offset estimation based at least in part on the frequency offset estimation for the PSS symbols and the DMRS symbols of the subsequence reference signal.

[0197] Similar to Example 500E, the SSB may not include the SSS symbol. The base station can use the PSS to indicate the cell ID from a relatively small number of cell IDs, which helps to omit the SSS from the SSB.

[0198] The UE can detect the sequence of PSS symbols and then use the detected sequence of PSS symbols to determine the channel estimate of the PSS symbols. In some aspects, the UE can determine the sequence of PSS symbols from a relatively small number (e.g., 128, 64, 32, 16, or 8) of possible PSS sequences. The UE can refine the frequency offset estimate (e.g., for channel estimation of PBCH symbols) based at least in part on the DMRS of another reference signal (e.g., system information block or physical downlink shared channel communication, etc.).

[0199] like Figure 5G As shown, Example 500G illustrates an SSB including one of the PSS symbol, DMRS symbol, or SSS symbol, PBCH symbol, and the gap following the PBCH symbol. The UE can perform channel estimation of the PBCH based at least in part on the extrapolation of channel estimates for the PSS symbol and / or one of the DMRS symbol or SSS symbol. Additionally or alternatively, the UE can perform frequency offset estimation based at least in part on the frequency offset estimates for the PSS symbol and one of the frequency offset estimates for the DMRS symbol or SSS symbol.

[0200] At least in part, based on the fact that the PBCH symbol follows one of the PSS and DMRS symbols or the SSS symbol, and that the gap follows the PBCH symbol, the gap can be absorbed into the PBCH. In some aspects, the SSB may include one or more repetitions of PBCH data, which the base station can stop at a certain time to allow the base station to switch beams for transmitting additional SSBs via additional transmit beams. In this way, based at least in part on the base station's ability to perform beam switching, the gap can have a flexible duration.

[0201] like Figure 5H As shown, Example 500H illustrates a sequence of symbols including those used to determine channel estimates for PBCH symbols, which can be configured to have the same bandwidth as the PBCH within the PBCH symbol. As shown in Example 500E, the UE performs channel estimation for a first SSS symbol and a second SSS symbol, and / or performs frequency offset estimation for the first SSS symbol and the second SSS symbol. The PBCH is demodulated using channel estimates for PBCH symbols, at least in part based on the SSB (e.g., by the base station), which is at least in part based on channel estimates for one or more other symbols of the SSB, which are configured to have the same bandwidth as the SSB. As shown, the first SSS symbol and the second SSS symbol are configured to have the same bandwidth as the PBCH symbol. In this way, interpolation or extrapolation from one or more other symbols of the SSB can provide improved accuracy for channel estimation of the PBCH symbol.

[0202] As mentioned above, Figures 5A-5H This is provided as an example. Other examples may differ from the one provided. Figures 5A-5H The description.

[0203] Figure 6 This is a diagram illustrating, for example, an example process 600 performed by a UE according to various aspects of this disclosure. Example process 600 is an example of an operation performed by a UE (e.g., UE 120) associated with a technique for determining the PBCH symbol for an SSB having time-division multiplexing symbols.

[0204] like Figure 6 As shown, in some aspects, process 600 may include receiving an SSB with time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols (box 610). For example, as described above, the UE (e.g., using...) Figure 8 The receiving component 802 depicted can receive an SSB with time-division multiplexing symbols via single-carrier communication, the time-division multiplexing symbols including PBCH symbols and one or more of PSS symbols, SSS symbols or DMRS symbols.

[0205] like Figure 6 As further shown, in some aspects, process 600 may include demodulating PBCH symbols using channel estimation of PBCH symbols, which is at least partially based on one or more channel estimates of PSS symbols, SSS symbols, or DMRS symbols (box 620). For example, as described above, the UE (e.g., using...) Figure 8 The communication manager 808 depicted in the figure can demodulate PBCH symbols using channel estimates of PBCH symbols, which are at least in part based on one or more channel estimates of PSS symbols, SSS symbols, or DMRS symbols.

[0206] Process 600 may include additional aspects, such as any single aspect or any combination of aspects of one or more other processes described below and / or in conjunction with those described elsewhere herein.

[0207] In a first aspect, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and wherein the method further includes determining a first channel estimate of the DMRS symbol, determining a second channel estimate of the SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0208] In a second aspect, either alone or in combination with the first aspect, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the method further includes determining a first channel estimate of the first SSS symbol, determining a second channel estimate of the second SSS symbol, and interpolating a channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0209] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 600 includes determining a cell ID associated with an SSB based at least in part on a sequence detected in a first SSS symbol, or at least in part on a first sequence detected in a first SSS symbol and a second sequence detected in a second SSS symbol.

[0210] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the method further includes determining a first channel estimate of the PSS symbol, determining a second channel estimate of one of the SSS symbol or the DMRS symbol, and interpolating a channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0211] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the method further includes determining a channel estimate of the PSS symbol and determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the PSS symbol.

[0212] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the method further includes determining a channel estimate of the DMRS symbol or the SSS symbol, and determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the DMRS symbol or the SSS symbol.

[0213] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0214] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, one or more reference signals of one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as PBCH.

[0215] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the SSB indicates the SSB index based at least in part on a sequence of one or more of the PSS symbols or SSS symbols, or on an indication within the PBCH symbol.

[0216] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the SSB includes the PBCH and the beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0217] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, process 600 includes determining the frequency offset of the PBCH symbol based at least in part on measurements of one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0218] although Figure 6 The example box for process 600 is shown, but in some respects, process 600 may include additional boxes, fewer boxes, different boxes, or boxes similar to those in the example. Figure 6 The different arrangements of boxes depicted in the diagram. Additionally or alternatively, two or more boxes of process 600 can be executed in parallel.

[0219] Figure 7 This is a diagram illustrating, for example, an example process 700 performed by a base station according to various aspects of this disclosure. Example process 700 is an example of an operation performed by a base station (e.g., base station 110) associated with a technique for determining the physical broadcast channel symbols for a synchronization signal block having time-division multiplexed symbols.

[0220] like Figure 7 As shown, in some aspects, process 700 may include configuring time-division multiplexing symbols for the SSB, which include PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols (box 710). For example, as described above, the base station (e.g., using...) Figure 9 The communication manager 908 depicted can configure time-division multiplexing symbols for the SSB, which include PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols.

[0221] like Figure 7As further shown, in some aspects, process 700 may include transmitting SSB via single-carrier communication, wherein the PBCH is configured to demodulate using a channel estimate of the PBCH symbol, the channel estimate being at least partially based on one or more channel estimates of the PSS symbol, SSS symbol, or DMRS symbol (box 720). For example, as described above, the base station (e.g., using...) Figure 9 The transmitting component 904 depicted can transmit SSB via single-carrier communication, wherein the PBCH is configured to demodulate using a channel estimate of the PBCH symbol, which is at least in part based on one or more channel estimates of the PSS symbol, SSS symbol, or DMRS symbol.

[0222] Process 700 may include additional aspects, such as any single aspect or any combination of aspects of one or more other processes described below and / or in conjunction with those described elsewhere herein.

[0223] In a first aspect, the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and wherein the PBCH is configured to demodulate at least in part based on the determination of a first channel estimate of the DMRS symbol, the determination of a second channel estimate of the SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0224] In a second aspect, either alone or in combination with the first aspect, the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on the determination of a first channel estimate of the first SSS symbol, the determination of a second channel estimate of the second SSS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0225] In a third aspect, either alone or in combination with one or more of the first and second aspects, the SSB indicates a cell identifier (ID) associated with the SSB based at least in part on a sequence in the first SBS symbol, or wherein the SSB indicates a cell based at least in part on a first sequence detected in the first SBS symbol and a second sequence detected in the second SBS symbol.

[0226] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the SSB includes a PBCH symbol, a PSS symbol, and one of an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the PBCH is configured to demodulate at least in part based on the determination of a first channel estimate of the PSS symbol, the determination of a second channel estimate of one of the SSS symbol or the DMRS symbol, and the interpolation of the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0227] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on the determination of a channel estimate of the PSS symbol and at least in part based on the determination of a channel estimate of the PBCH symbol based on the channel estimate of the PSS symbol.

[0228] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the SSB includes a PBCH symbol, a PSS symbol, and one of a DMRS symbol or an SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on the determination of a channel estimate of the DMRS symbol or the SSS symbol, and at least in part based on the determination of a channel estimate of the PBCH symbol based on the channel estimate of the DMRS symbol or the SSS symbol.

[0229] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0230] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, one or more reference signals of one or more of the PSS, SSS, or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as PBCH.

[0231] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the SSB indicates the SSB index based at least in part on a sequence of one or more of the PSS symbols or SSS symbols, or on an indication within the PBCH symbol.

[0232] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the SSB includes the PBCH and the beam switching gap following one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0233] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, the frequency offset of the PBCH symbol is configured to be determined at least in part based on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0234] although Figure 7 The example box for process 700 is shown, but in some respects, process 700 may include additional boxes, fewer boxes, different boxes, or boxes similar to those in the example. Figure 7 The different arrangements of boxes depicted in the diagram. Additionally or alternatively, two or more boxes of process 700 can be executed in parallel.

[0235] Figure 8 This is a block diagram of an example device 800 for wireless communication. Device 800 may be a UE or a UE may include device 800. In some aspects, device 800 includes a receiving component 802 and a transmitting component 804, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 800 can use the receiving component 802 and the transmitting component 804 to communicate with another device 806 (such as a UE, a base station, or another wireless communication device). As further shown, device 800 may include a communication manager 808.

[0236] In some respects, device 800 can be configured to perform the functions described herein. Figures 4-5H One or more operations described herein. Additionally or alternatively, apparatus 800 may be configured to perform one or more processes described herein, such as Figure 6 The process is 600. In some respects, Figure 8 The device 800 and / or one or more components shown may include the above-described combination. Figure 2 One or more components of the UE described. Additionally or alternatively, Figure 8 One or more components shown can be combined above. Figure 2 Implemented in one or more of the described components. Additionally or alternatively, one or more components of the group of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0237] Receiver 802 may receive communications from device 806, such as reference signals, control information, data communications, or combinations thereof. Receiver 802 may provide the received communications to one or more other components of device 800. In some aspects, receiver 802 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding), and may provide the processed signals to one or more other components of device 806. In some aspects, receiver 802 may include the above-described combinations. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0238] Transmitting component 804 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 806. In some aspects, one or more other components of device 806 can generate communications and provide the generated communications to transmitting component 804 for transmission to device 806. In some aspects, transmitting component 804 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) on ​​the generated communications and can transmit the processed signals to device 806. In some aspects, transmitting component 804 may include the above-described combinations... Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 804 may co-located with the receive component 802 in a transceiver.

[0239] The receiving component 802 can receive an SSB with time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including PBCH symbols and one or more of PSS symbols, SSS symbols, or DMRS symbols. The communication manager 808 can demodulate the PBCH symbols using channel estimation of the PBCH symbols, the channel estimation being at least in part based on channel estimation of one or more PSS symbols, SSS symbols, or DMRS symbols.

[0240] The communication manager 808 can determine the cell ID associated with the SSB based at least in part on the sequence detected in the first SSS symbol.

[0241] The communication manager 808 can determine the cell ID associated with the SSB based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0242] The communication manager 808 can determine the frequency offset of the PBCH symbol based at least in part on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0243] Figure 8 The number and arrangement of components shown are provided as an example. In reality, there can be more. Figure 8 The diagram shows more components, fewer components, different components, or components arranged differently. Furthermore, Figure 8 The two or more components shown can be implemented within a single component, or Figure 8 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 8 The set (one or more) components shown can perform actions described by Figure 8 The other set of components shown performs one or more functions.

[0244] Figure 9 This is a block diagram of an example device 900 for wireless communication. Device 900 may be a base station, or a base station may include device 900. In some aspects, device 900 includes a receiving component 902 and a transmitting component 904, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 900 can use the receiving component 902 and the transmitting component 904 to communicate with another device 906 (such as a UE, a base station, or another wireless communication device). As further shown, device 900 may include one or more of a communication manager 908.

[0245] In some respects, device 900 can be configured to perform the functions described herein. Figures 4-5H One or more operations described herein. Additionally or alternatively, apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 The process is 700. In some respects, Figure 9 The device 900 and / or one or more components shown may include the above-described combination. Figure 2 One or more components of the described base station. Additionally or alternatively, Figure 9 One or more components shown can be combined above. Figure 2 Implemented in one or more of the described components. Additionally or alternatively, one or more components of the group of components may be implemented at least partially as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and may be executed by a controller or processor to perform the function or operation of the component.

[0246] Receiver 902 can receive communications from device 906, such as reference signals, control information, data communications, or combinations thereof. Receiver 902 can provide the received communications to one or more other components of device 900. In some aspects, receiver 902 can perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding), and can provide the processed signals to one or more other components of device 906. In some aspects, receiver 902 can include the above-described combinations. Figure 1 The described base station includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0247] Transmitting component 904 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 906. In some aspects, one or more other components of device 906 can generate communications and provide the generated communications to transmitting component 904 for transmission to device 906. In some aspects, transmitting component 904 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding) on ​​the generated communications and can transmit the processed signals to device 906. In some aspects, transmitting component 904 may include the above-described combinations... Figure 2 The described base station includes one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof. In some aspects, the transmit component 904 may co-located with the receive component 902 in a transceiver.

[0248] The communication manager 908 can configure time-division multiplexing symbols for the SSB, which include PBCH symbols and one or more of PSS, SSS, or DMRS symbols. The transmission component 904 can transmit the SSB via single-carrier communication, wherein the PBCH is configured to demodulate using channel estimation of the PBCH symbols, which is at least partially based on channel estimation of one or more PSS, SSS, or DMRS symbols.

[0249] Figure 9 The number and arrangement of components shown are provided as an example. In reality, there can be more. Figure 9 The diagram shows more components, fewer components, different components, or components arranged differently. Furthermore, Figure 9 The two or more components shown can be implemented within a single component, or Figure 9 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 9 The set (one or more) components shown can perform actions described by Figure 9The other set of components shown performs one or more functions.

[0250] The following provides an overview of some aspects of this disclosure:

[0251] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving a synchronization signal block (SSB) having time-division multiplexed symbols via single-carrier communication, the time-division multiplexed symbols including a physical broadcast channel (PBCH) symbol and one or more of a primary synchronization signal (PSS) symbol, a secondary synchronization signal (SSS) symbol, or a demodulation reference signal (DMRS) symbol; and demodulating the PBCH symbol using a channel estimate of the PBCH symbol, the channel estimate being at least in part based on one or more channel estimates of the PSS symbol, the SSS symbol, or the DMRS symbol.

[0252] Aspect 2: The method of aspect 1, wherein the SSB includes a PBCH symbol, a DMRS symbol and an SSS symbol, wherein the PBCH symbol is located between the DMRS symbol and the SSS symbol in time, and wherein the method further includes: determining a first channel estimate of the DMRS symbol, determining a second channel estimate of the SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0253] Aspect 3: The method of aspect 1, wherein the SSB includes a PBCH symbol, a first SSS symbol and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the method further includes: determining a first channel estimate of the first SSS symbol, determining a second channel estimate of the second SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0254] Aspect 4: The method of aspect 3 further includes: determining a cell identifier (ID) associated with the SSB based at least in part on a sequence detected in a first SSS symbol, or determining a cell ID associated with the SSB based at least in part on a first sequence detected in a first SSS symbol and a second sequence detected in a second SSS symbol.

[0255] Aspect 5: The method of aspect 1, wherein the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the method further includes: determining a first channel estimate of the PSS symbol, determining a second channel estimate of one of the SSS symbol or the DMRS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0256] Aspect 6: The method of aspect 1, wherein the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the method further includes: determining a channel estimate of the PSS symbol, and determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the PSS symbol.

[0257] Aspect 7: The method of aspect 1, wherein the SSB includes one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol, wherein the DMRS symbol or the SSS symbol is located between the PSS symbol and the PBCH symbol in time, and wherein the method further includes: determining a channel estimate of the DMRS symbol or the SSS symbol, and determining a channel estimate of the PBCH symbol based at least in part on the channel estimate of the DMRS symbol or the SSS symbol.

[0258] Aspect 8: The method as described in any one of Aspects 1-7, wherein PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0259] Aspect 9: The method of any one of Aspects 1-8, wherein one or more reference signals of one or more of PSS, SSS or DMRS used for channel estimation to determine PBCH symbols have the same bandwidth as PBCH.

[0260] Aspect 10: The method of any one of Aspects 1-9, wherein the SSB is indicated at least in part based on a sequence of one or more of the PSS symbols or SSS symbols, or an indication within the PBCH symbols.

[0261] Aspect 11: The method of any one of Aspects 1-10, wherein the SSB includes the PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol or DMRS symbol.

[0262] Aspect 12: The method of any one of Aspects 1-11 further includes: determining the frequency offset of the PBCH symbol based at least in part on measurements of one or more of the PSS symbol, SSS symbol, or DMRS symbol.

[0263] Aspect 13: A method of wireless communication performed by a base station, comprising: configuring time-division multiplexing symbols for a synchronization signal block (SSB), the time-division multiplexing symbols including a physical broadcast channel (PBCH) symbol and one or more of a primary synchronization signal (PSS) symbol, a secondary synchronization signal (SSS) symbol, or a demodulation reference signal (DMRS) symbol; transmitting the SSB via single-carrier communication, wherein the PBCH symbol is configured to demodulate using a channel estimate of the PBCH symbol, the channel estimate being at least partially based on one or more channel estimates of the PSS symbol, the SSS symbol, or the DMRS symbol.

[0264] Aspect 14: The method of aspect 13, wherein the SSB includes a PBCH symbol, a DMRS symbol, and an SSS symbol, wherein the PBCH symbol is located in time between the DMRS symbol and the SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: determining a first channel estimate for the DMRS symbol, determining a second channel estimate for the SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0265] Aspect 15: The method of aspect 13, wherein the SSB includes a PBCH symbol, a first SSS symbol, and a second SSS symbol, wherein the PBCH symbol is located in time between the first SSS symbol and the second SSS symbol, and wherein the PBCH is configured to demodulate at least in part based on: determining a first channel estimate for the first SSS symbol, determining a second channel estimate for the second SSS symbol, and interpolating the channel estimate of the PBCH symbol based at least in part on the first channel estimate and the second channel estimate.

[0266] Aspect 16: The method of aspect 15, wherein the SSB indicates the cell identifier (ID) associated with the SSB based at least in part on a sequence in the first SSS symbol, or wherein the SSB indicates the cell based at least in part on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

[0267] Aspect 17: The method of aspect 13, wherein the SSB includes one of a PBCH symbol, a PSS symbol, and an SSS symbol or a DMRS symbol, wherein the PBCH symbol is located in time between the PSS symbol and one of the SSS symbol or the DMRS symbol, and wherein the PBCH is configured to demodulate at least in part based on: determining a first channel estimate for the PSS symbol, determining a second channel estimate for one of the SSS symbol or the DMRS symbol, and interpolating the channel estimate of the PBCH symbol at least in part based on the first channel estimate and the second channel estimate.

[0268] Aspect 18: The method of aspect 13, wherein the SSB includes a PBCH symbol and a PSS symbol, wherein the PSS symbol is temporally adjacent to the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a channel estimate for the PSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the PSS symbol.

[0269] Aspect 19: The method of aspect 13, wherein the SSB includes one of a PBCH symbol, a PSS symbol, and a DMRS symbol or an SSS symbol, wherein the DMRS symbol or the SSS symbol is located in time between the PSS symbol and the PBCH symbol, and wherein the PBCH is configured to demodulate at least in part based on: the determination of a channel estimate for the DMRS symbol or the SSS symbol, and the determination of a channel estimate for the PBCH symbol based at least in part on the channel estimate for the DMRS symbol or the SSS symbol.

[0270] Aspect 20: The method as described in any one of Aspects 13-19, wherein the PBCH is time-wise following all of one or more of the PSS symbols, SSS symbols, or DMRS symbols within the SSB.

[0271] Aspect 21: The method of any one of aspects 13-20, wherein one or more reference signals of one or more of PSS, SSS or DMRS for determining the channel estimation of the PBCH symbol have the same bandwidth as the PBCH.

[0272] Aspect 22: The method of any one of aspects 13-21, wherein the SSB is indicated at least in part based on a sequence of one or more of the PSS symbols or SSS symbols, or an indication within the PBCH symbols.

[0273] Aspect 23: The method of any one of Aspects 13-22, wherein the SSB includes the PBCH and a beam switching gap following one or more of the PSS symbol, SSS symbol or DMRS symbol.

[0274] Aspect 24: The method of any one of Aspects 13-23, wherein the frequency offset of the PBCH symbol is configured to be determined at least in part based on measurements of one or more of the PSS, SSS, or DMRS symbols.

[0275] Aspect 25: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods of aspects 1-24.

[0276] Aspect 26: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the methods of one or more aspects of aspects 1-24.

[0277] Aspect 27: An apparatus for wireless communication, comprising at least one component for performing the methods of one or more aspects of aspects 1-24.

[0278] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods of one or more aspects of aspects 1-24.

[0279] Aspect 29: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of the device, cause the device to perform the methods of one or more aspects of aspects 1-24.

[0280] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit all aspects to the precise form disclosed. Modifications and variations can be made based on the foregoing disclosure, or modifications and variations can be derived from various practices.

[0281] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. As used herein, a processor is implemented as hardware, firmware, and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited to these aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code—it should be understood that software and hardware can be designed to implement the systems and / or methods at least in part based on the descriptions herein.

[0282] As used in this article, depending on the context, satisfying the threshold can refer to a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0283] Although specific combinations of features are set forth in the claims and / or disclosed in the description, these combinations are not intended to limit the disclosure of aspects. In fact, multiple features may be combined in a manner not specifically set forth in the claims and / or disclosed in the description. While each dependent claim listed below may be directly subordinated to only one claim, the disclosure of aspects includes combinations of each dependent claim with each other claim in the claim set. As used herein, the phrase “at least one” in the list of items refers to any combination of those items, including single members. As an example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other permutation of a, b, and c).

[0284] Unless explicitly stated otherwise, no element, action, or instruction used herein should be construed as critical or necessary. Furthermore, the articles “a” and “an” as used herein are intended to include one or more items and may be used interchangeably with “one or more.” The article “the” as used herein is intended to include one or more items associated with the article “the” and may be used interchangeably with “the one or more.” The terms “set” and “group” as used herein are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with “one or more.” Where only one item is intended to be included, the phrase “only one” or similar language is used. Furthermore, the terms “has,” “have,” “having,” etc., as used herein are intended to be open-ended terms. Additionally, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, the term “or” as used herein is intended to be inclusive when used consecutively and may be used interchangeably with “and / or” unless otherwise expressly stated (e.g., if used in combination with “any one” or “only one of them”).

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: A synchronization signal block SSB with time-division multiplexing symbols is received via single-carrier communication. The time-division multiplexing symbols include a first symbol, a second symbol, a physical broadcast channel PBCH symbol located in time between the first symbol and the second symbol, and a beam switching gap within the SSB. Each of the first symbol and the second symbol includes a primary synchronization signal PSS symbol, a secondary synchronization signal SSS symbol, or a demodulation reference signal DMRS symbol. as well as The PBCH symbol is demodulated using channel estimation and frequency offset estimation, wherein: The channel estimation of the PBCH symbol is at least partially based on time-domain interpolation of the channel estimates of the first and second symbols, and The frequency offset estimation of the PBCH symbol is based at least in part on the frequency offset estimation of the first symbol or the second symbol.

2. The method according to claim 1, wherein the first symbol is a DMRS symbol and the second symbol is an SSS symbol.

3. The method according to claim 1, wherein the first symbol is a first SSS symbol and the second symbol is a second SSS symbol.

4. The method according to claim 3, further comprising: The cell identifier ID associated with the SSB is determined at least in part based on the sequence detected in the first SSS symbol, or The cell ID associated with the SSB is determined at least in part based on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

5. The method according to claim 1, wherein the first symbol is a PSS symbol and the second symbol is an SSS symbol or a DMRS symbol.

6. The method of claim 5, wherein the first symbol is temporally adjacent to the PBCH symbol.

7. The method of claim 1, wherein the SSB comprises one of the PBCH symbol, the PSS symbol, the DMRS symbol, or the SSS symbol.

8. The method of claim 1, wherein one or more reference signals in the first symbol and the second symbol used to determine the channel estimation of the PBCH symbol have the same bandwidth as the PBCH.

9. The method of claim 1, wherein the SSB is indicated at least in part based on the following: A sequence of one or more of the PSS symbols or the SSS symbols, or The indication within the PBCH symbol.

10. The method of claim 1, wherein the SSB includes the PBCH, the first symbol, and the beam switching gap following the second symbol.

11. The method according to claim 1, further comprising: The frequency offset estimate of the PBCH symbol is determined at least in part based on measurements of one or more of the first symbol or the second symbol.

12. A user equipment (UE) for wireless communication, comprising: One or more memory units; as well as One or more processors, coupled to the one or more memories, are configured to: A synchronization signal block SSB with time-division multiplexing symbols is received via single-carrier communication. The time-division multiplexing symbols include a first symbol, a second symbol, a physical broadcast channel PBCH symbol located in time between the first symbol and the second symbol, and a beam switching gap within the SSB. Each of the first symbol and the second symbol includes a primary synchronization signal PSS symbol, a secondary synchronization signal SSS symbol, or a demodulation reference signal DMRS symbol. as well as The PBCH symbol is demodulated using channel estimation and frequency offset estimation, wherein: The channel estimation of the PBCH symbol is at least partially based on time-domain interpolation of the channel estimates of the first and second symbols, and The frequency offset estimation of the PBCH symbol is based at least in part on the frequency offset estimation of the first symbol or the second symbol.

13. The UE according to claim 12, wherein the first symbol is a DMRS symbol and the second symbol is an SSS symbol.

14. The UE according to claim 12, wherein the first symbol is a first SSS symbol and the second symbol is a second SSS symbol.

15. The UE of claim 14, wherein the one or more processors are further configured to: The cell identifier ID associated with the SSB is determined at least in part based on the sequence detected in the first SSS symbol, or The cell ID associated with the SSB is determined at least in part based on a first sequence detected in the first SSS symbol and a second sequence detected in the second SSS symbol.

16. The UE according to claim 12, wherein the first symbol is a PSS symbol and the second symbol is an SSS symbol or a DMRS symbol.

17. The UE of claim 16, wherein the first symbol is temporally adjacent to the PBCH symbol.

18. The UE of claim 16, wherein the SSB comprises one of the PBCH symbol, the PSS symbol, and the DMRS symbol or the SSS symbol.

19. The UE of claim 12, wherein one or more reference signals in the first symbol and the second symbol used to determine the channel estimation of the PBCH symbol have the same bandwidth as the PBCH.

20. The UE of claim 12, wherein the SSB is indicated by an SSB index based at least in part on: A sequence of one or more of the PSS symbols or the SSS symbols, or The indication within the PBCH symbol.

21. The UE of claim 12, wherein the SSB includes the PBCH, the first symbol, and the beam switching gap following the second symbol.

22. The UE of claim 12, wherein the one or more processors are further configured to: The frequency offset estimate of the PBCH symbol is determined at least in part based on measurements of one or more of the first symbol or the second symbol.

23. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: One or more instructions, when executed by one or more processors of a user equipment (UE), cause the UE to: A synchronization signal block SSB with time-division multiplexing symbols is received via single-carrier communication. The time-division multiplexing symbols include a first symbol, a second symbol, a physical broadcast channel PBCH symbol located in time between the first symbol and the second symbol, and a beam switching gap within the SSB. Each of the first symbol and the second symbol includes a primary synchronization signal PSS symbol, a secondary synchronization signal SSS symbol, or a demodulation reference signal DMRS symbol. as well as The PBCH symbol is demodulated using channel estimation and frequency offset estimation, wherein: The channel estimation of the PBCH symbol is at least partially based on time-domain interpolation of the channel estimates of the first and second symbols, and The frequency offset estimation of the PBCH symbol is based at least in part on the frequency offset estimation of the first symbol or the second symbol.

24. The non-transitory computer-readable medium of claim 23, wherein the SSB is indicated at least in part based on the following: A sequence of one or more of the PSS symbols or the SSS symbols, or The indication within the PBCH symbol.

25. The non-transitory computer-readable medium of claim 23, wherein the SSB includes the PBCH, the first symbol, and the beam switching gap following the second symbol.

26. The non-transitory computer-readable medium of claim 23, wherein the first symbol is a DMRS symbol and the second symbol is an SSS symbol.

27. The non-transitory computer-readable medium of claim 23, wherein the first symbol is a first SSS symbol and the second symbol is a second SSS symbol.

28. The non-transitory computer-readable medium of claim 23, wherein the first symbol is a PSS symbol and the second symbol is an SSS symbol or a DMRS symbol.

29. An apparatus for wireless communication executed at a user equipment (UE), comprising a component performing the method of any one of claims 1-11.

30. A computer program product comprising computer-readable instructions that, when executed by a processor, cause the processor to perform the method of any one of claims 1-11.

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