Methods and apparatus for wireless communication at a ue and a base station

Abstract

Methods, systems, and devices are described for wireless communication. In some wireless communication systems, signaling can be affected by Doppler shifts associated with communications between user equipment (UEs) and one or more devices in the system. To account for Doppler shifts, a UE can receive a Doppler shift measurement configuration for estimating one or more Doppler shift parameters associated with one or more reference signals transmitted from one or more transmission reception points (TRPs). The measurement configuration can include a measurement limit parameter indicating a number of time durations that the UE can use to estimate the Doppler shift parameters. The UE can generate and transmit a measurement report for the estimated Doppler shift parameters according to a determined reporting accuracy and granularity.

Description

[0001] Cross-references to related applications

[0002] This patent application claims the benefit of international application No. PCT / CN2020 / 095741 filed by Manolakos et al. on June 12, 2020, entitled “MEASUREMENT CONFIGURATION FOR DOPPLER SHIFT REPORTING”, which has been assigned to the assignee of this application and whose entire contents are expressly incorporated herein by reference. Technical Field

[0003] In general, the following text relates to wireless communication, and more specifically, to measurement configurations for Doppler shift reporting. Background Technology

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, and broadcasting. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems such as Long Term Evolution (LTE), LTE-A Advanced (LTE-A), or LTE-A Pro systems, and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ technologies such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Spread Spectrum Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication with multiple communication devices (which may also be referred to as User Equipment (UE)).

[0005] The movement of a UE while communicating with one or more base stations or network access nodes can affect the signaling performance of a wireless communication system. For example, a UE moving at high speed may encounter signal propagation effects such as Doppler shift. Summary of the Invention

[0006] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting measurement configurations for Doppler shift reporting. In summary, the described techniques provide improved signaling quality in wireless communication networks experiencing Doppler shift (e.g., related to high-speed movement of user equipment (UE)). In some examples, Doppler shift associated with transmissions in the network can affect the UE's ability to identify and combine reference signals transmitted from one or more network access nodes, such as base stations or transmit-receive points (TRPs), for example, where the measured Doppler shift differs for each TRP. Therefore, to reduce the impact of Doppler shift on high-speed communication, the UE can measure and report Doppler shift parameters for each TRP, and each TRP can adjust ongoing (e.g., current or future) communication to compensate for the reported Doppler shift.

[0007] The UE can receive a Doppler shift measurement configuration for estimating Doppler shift parameters associated with one or more reference signals transmitted from one or more TRPs. The measurement configuration may include measurement constraint parameters (e.g., time constraint parameters) indicating the number of durations the UE can use to estimate the Doppler shift parameters. For example, the UE may determine that the durations specified in the measurement constraint parameters include a set of reference signals. In one example, depending on the measurement constraint parameters, the UE may estimate the Doppler shift parameters over a single duration (e.g., a single “shot”), or the UE may average multiple estimated Doppler shift parameters over multiple instances of the duration (e.g., multiple “shots”). The UE can use the estimated Doppler shift parameters to generate and transmit measurement reports (e.g., Channel State Information (CSI) reports) and may send these reports to one or more TRPs in the system. Upon receiving a measurement report from the UE, one or more TRPs may adjust communications to allow the UE to take the reported Doppler shift into account.

[0008] A method for wireless communication at a UE is described. The method may include: receiving a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes; identifying measurement constraint parameters based on the measurement configuration, the measurement constraint parameters indicating a number of durations on which the UE is configured to perform measurements to estimate the one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of the reference signals; and sending a measurement report to the one or more nodes according to the measurement constraint parameters, the measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals.

[0009] An apparatus for wireless communication at a UE is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes; identify measurement constraint parameters based on the measurement configuration, the measurement constraint parameters indicating a number of durations on which the UE is configured to perform measurements to estimate the one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of the reference signals; and send a measurement report to the one or more nodes according to the measurement constraint parameters, the measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals.

[0010] Another apparatus for wireless communication at a UE is described. The apparatus may include: a unit for performing the following operations: receiving a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes; identifying measurement constraint parameters based on the measurement configuration, the measurement constraint parameters indicating a number of durations on which the UE is configured to perform measurements to estimate the one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of the reference signals; and sending a measurement report to the one or more nodes according to the measurement constraint parameters, the measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals.

[0011] A non-transitory computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to: receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes; identify measurement constraint parameters based on the measurement configuration, the measurement constraint parameters indicating a number of durations on which the UE is configured to perform measurements to estimate the one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of the reference signals; and send a measurement report to the one or more nodes according to the measurement constraint parameters, the measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals.

[0012] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying measurement accuracy for estimating the one or more Doppler frequency shift parameters, wherein the measurement accuracy may be based on the measurement constraint parameters.

[0013] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, identifying measurement accuracy may also include operations, features, units or instructions for determining the number of durations indicated by the measurement limit parameter, wherein the measurement accuracy may be based on whether the number of durations includes more than a single duration.

[0014] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying measurement accuracy for estimating the one or more Doppler frequency shift parameters based on the transmission timing structure of the reference signal set.

[0015] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying measurement accuracy for estimating the one or more Doppler frequency shift parameters based on the type of reference signal associated with the set of reference signals.

[0016] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: determining the duration of the quantity to include a single duration corresponding to a group of single configurations of the reference signal set; and determining one or more estimated Doppler shift parameters based on measurements of the single duration of Doppler shift associated with the group of single configurations of the reference signal set.

[0017] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: determining the number of durations comprising a set of multiple durations corresponding to a group set of configurations of the reference signal set; estimating a Doppler shift value based on measurements at each of the multiple durations; and determining one or more estimated Doppler shift parameters based on an average Doppler shift value associated with the set of multiple durations.

[0018] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the measurement limiting parameters indicate that the UE can be configured to perform measurements thereon to estimate one or more time slots of the one or more Doppler frequency shift parameters.

[0019] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: identifying a range of resolvable Doppler frequency shift values; and estimating the one or more Doppler frequency shift parameters based on the range of resolvable Doppler frequency shift values.

[0020] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, identifying the range of resolvable Doppler frequency shift values ​​may also include operations, features, units or instructions for identifying time-domain gaps between consecutive samples of the reference signal set.

[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, identifying the range of the resolvable Doppler frequency shift values ​​may also include operations, features, units, or instructions for receiving a downlink message indicating the range of the resolvable Doppler frequency shift values.

[0022] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for generating a measurement report that includes a first indication of one or more estimated Doppler frequency shift parameters and a second indication of the range of resolvable Doppler frequency shift values.

[0023] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: identifying the number of bits allocated for reporting the one or more Doppler frequency shift parameters; and determining the granularity for reporting the one or more Doppler frequency shift parameters based on the range of resolvable Doppler frequency shift values ​​and the number of bits.

[0024] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining the granularity for reporting the one or more Doppler frequency shift parameters based on the number of durations for which the UE can be configured to estimate the one or more Doppler frequency shift parameters.

[0025] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, sending the measurement report may also include operations, features, units, or instructions for: identifying a set of frequency bins associated with one or more Doppler shift values; identifying numerical values ​​representing the estimated one or more Doppler shift parameters; and assigning the estimated one or more Doppler shift parameters to frequency bins in the set of frequency bins based on the numerical values.

[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining that the set of frequency bins includes a first frequency bin associated with a Doppler shift value that may be less than a threshold and a second frequency bin associated with a Doppler shift value that exceeds the threshold.

[0027] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the estimated one or more Doppler frequency shift parameters may be quantized based on the numerical values.

[0028] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, transmitting the measurement report may also include operations, features, units, or instructions for generating bits indicating that one or more of the estimated Doppler frequency shift parameters have positive or negative values.

[0029] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: identifying temporal overlap between a first channel state information report and a second channel state information report that includes the measurement report; and determining a priority order of the first channel state information report and the second channel state information report based on the composition of the first channel state information report and the composition of the second channel state information report.

[0030] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the components include at least one of beam reporting information, Doppler reporting information, or channel quality information reports.

[0031] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the prioritization may also be based on a reference signal identifier, a control resource set identifier or a quasi-cooperative positioning information identifier associated with the measurement report.

[0032] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the duration of the number corresponds to the allocation time for monitoring a set of configuration reference signals.

[0033] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the duration of the number includes one or more time slots.

[0034] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, sending the measurement report to the one or more nodes may further include operations, features, units, or instructions for: generating a first indicator associated with a first Doppler shift estimation parameter for a first transmit receiving point (TRP); generating a second indicator associated with a second Doppler shift estimation parameter for a second TRP; and sending the measurement report including the first indicator and the first Doppler shift estimation parameter, as well as the second indicator and the second Doppler shift estimation parameter.

[0035] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the first indicator and the second indicator include different control resource set pool indexes or transport configuration indicator states.

[0036] A method for wireless communication at a base station is described. The method may include: identifying measurement constraint parameters that instruct a user equipment (UE) to perform measurements thereon to estimate a number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each duration of the number of durations comprises a set of the reference signals; sending to the UE a measurement configuration message including the measurement constraint parameters for estimating the one or more Doppler frequency shift parameters; and receiving from the UE a measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement constraint parameters.

[0037] An apparatus for wireless communication at a base station is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: identify measurement constraint parameters instructing a user equipment (UE) to be configured thereon to perform measurements to estimate a number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a set of the reference signals; send to the UE a measurement configuration message including the measurement constraint parameters for estimating the one or more Doppler frequency shift parameters; and receive from the UE a measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement constraint parameters.

[0038] Another apparatus for wireless communication at a base station is described. The apparatus may include units for performing: identifying measurement constraint parameters that instruct a user equipment (UE) to perform measurements thereon to estimate a number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a set of the reference signals; sending to the UE a measurement configuration message including the measurement constraint parameters for estimating the one or more Doppler frequency shift parameters; and receiving from the UE a measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement constraint parameters.

[0039] A non-transitory computer-readable medium is described, storing code for wireless communication at a base station. The code may include instructions executable by a processor to: identify measurement constraint parameters instructing a user equipment (UE) to perform measurements thereon to estimate a number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a set of the reference signals; send to the UE a measurement configuration message including the measurement constraint parameters for estimating the one or more Doppler frequency shift parameters; and receive from the UE a measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement constraint parameters.

[0040] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying measurement accuracy for estimating the one or more Doppler frequency shift parameters, wherein the measurement accuracy may be based on the measurement constraint parameters.

[0041] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, identifying measurement accuracy may also include operations, features, units or instructions for determining the number of durations indicated by the measurement limit parameter, wherein the measurement accuracy may be based on whether the number of durations includes more than a single duration.

[0042] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying measurement accuracy for estimating the one or more Doppler frequency shift parameters based on the transmission timing structure of the reference signal set.

[0043] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for identifying measurement accuracy for estimating the one or more Doppler frequency shift parameters based on the type of reference signal associated with the set of reference signals.

[0044] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining the duration of the quantity to include a single duration corresponding to a group of a single configuration of the reference signal set, wherein the measurement report may be based on measurements of the single duration of one or more Doppler frequency shift parameters associated with the group of the single configuration of the reference signal set.

[0045] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for determining the number of durations, which comprises a set of multiple durations corresponding to a set of configurations of the reference signal set, wherein the measurement report includes a Doppler frequency shift value that can be estimated based on the average measurement over each of the multiple durations.

[0046] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the measurement limiting parameters indicate that the UE can be configured to perform measurements thereon to estimate one or more time slots of the one or more Doppler frequency shift parameters.

[0047] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may also include operations, features, units, or instructions for: identifying temporal overlap between a first channel state information report and a second channel state information report that includes the measurement report; and sending an indication of prioritization of the first channel state information report and the second channel state information report based on the composition of the first channel state information report and the composition of the second channel state information report.

[0048] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the components include at least one of beam reporting information, Doppler reporting information, or channel quality information reports.

[0049] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the prioritization may also be based on a reference signal identifier, a control resource set identifier or a quasi-cooperative positioning information identifier associated with the measurement report.

[0050] In some examples of the methods, apparatuses and non-transitory computer-readable media described herein, the duration of the number corresponds to the allocation time for monitoring a set of configuration reference signals.

[0051] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the duration of the number includes one or more time slots. Attached Figure Description

[0052] Figure 1 An example of a system for wireless communication that supports a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0053] Figure 2 An example of a wireless communication system that supports a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0054] Figure 3A and Figure 3B Examples of a Tracking Reference Signal (TRS) configuration and reference signal structure supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, are shown.

[0055] Figure 4 An example of a process flow diagram supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0056] Figure 5 as well as Figure 6 A block diagram of a device supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown.

[0057] Figure 7 A block diagram of a communication manager supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0058] Figure 8 A diagram of a system including a device supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0059] Figure 9 as well as Figure 10 A block diagram of a device supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown.

[0060] Figure 11 A block diagram of a communication manager supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0061] Figure 12A diagram of a system including a device supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown.

[0062] Figures 13 to 18 A flowchart is shown that illustrates a method for a measurement configuration supporting Doppler shift reporting, according to aspects of this disclosure. Detailed Implementation

[0063] In some wireless communication systems (e.g., 5G / New Radio (NR) communication systems), User Equipment (UE) can support signal transmission between multiple Transmitter Points (TRPs) in a Single Frequency Network (SFN). In some cases, the UE may be traveling at high speeds (e.g., on a High-Speed ​​Train (HST) or other high-speed transport) and experience Doppler shift, which affects both uplink and downlink communication at the UE, degrading overall communication quality. For example, Doppler shift associated with downlink transmissions may affect the UE's ability to identify and combine reference signals transmitted from TRPs in the system, especially when the Doppler shift measured for each TRP is different. Therefore, to reduce the impact of Doppler shift on high-speed communication, the UE can measure and report Doppler shift parameters for each TRP, and each TRP can adjust ongoing communication to compensate for the reported Doppler shift.

[0064] To improve communication reliability and quality, the UE can identify a Doppler shift measurement configuration for measuring various Doppler shift parameters and reporting them to one or more TRPs in the SFN. The UE can receive a measurement configuration from one or more TRPs, which includes measurement constraint parameters indicating the number of durations the UE can use to estimate the Doppler shift. For example, a TRP may transmit multiple reference signals, and the UE determines the durations it can use to estimate the Doppler shift based on the measurement constraint parameters, where the durations include one or more of the transmitted reference signals. The measurement configuration and measurement constraint parameters may be based on a reference signal structure of the reference signals transmitted from one or more TRPs.

[0065] In one example, depending on the measurement constraint parameters, the UE can estimate the Doppler shift parameters over a single duration (e.g., a single "shot"), or the UE can average multiple estimated Doppler shift parameters over multiple instances of the duration (e.g., multiple "shots"). The UE can report the estimated Doppler shift parameters along with an identifier (e.g., a Control Resource Set (CORESET) ID or Transmission Configuration (TCI) status) to the TRP in uplink messages (e.g., uplink control information (UCI), channel state information (CSI), etc.), the identifier indicating which Doppler shift measurements correspond to which TRP.

[0066] In some examples, the UE can determine the accuracy requirements for estimating Doppler shift parameters based on the measurement configuration (e.g., whether single-lens or multi-lens measurement is configured). The UE can also determine the granularity for reporting Doppler shift; for example, the UE can assign Doppler shift values ​​to individual frequency bins based on the range of the Doppler shift values ​​or whether the reported Doppler shift is higher or lower than a determined threshold Doppler shift value. In some other examples, Doppler shift reporting can indicate the sign of the Doppler shift (e.g., whether the UE is moving towards or away from the TRP).

[0067] The various aspects of this disclosure are first described in the context of a wireless communication system. For example, aspects of this disclosure may be described in the context of multi-TRP communication in an SFN. Aspects of this disclosure are further illustrated and described through apparatus diagrams, system diagrams, process flow diagrams, tracking reference signal configurations, example reference signal structures, and flowcharts related to measurement configurations for Doppler shift reporting.

[0068] Figure 1 An example of a wireless communication system 100 supporting measurement configurations for Doppler shift reporting, according to aspects of this disclosure, is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low-latency communication, communication with low-cost and low-complexity devices, or any combination thereof.

[0069] Base stations 105 can be distributed throughout a geographical area to form a wireless communication system 100, and can be devices of different forms or with different capabilities. Base stations 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. The coverage area 110 can be an example of a geographical area, and base station 105 and UE 115 can support signal communication based on one or more radio access technologies on the coverage area 110.

[0070] UE 115 can be distributed throughout the entire coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary, mobile, or both stationary and mobile at different times. UE 115 can be devices with different forms or different capabilities. Figure 1Some example UE 115s are shown in the document. The UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network devices (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network devices), such as... Figure 1 As shown.

[0071] Base station 105 can communicate with core network 130, communicate with each other, or both. For example, base station 105 can interface with core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base station 105 can communicate with each other directly (e.g., directly between base stations 105) or indirectly (e.g., via core network 130) or both via backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 can be or includes one or more radio links. In some examples, backhaul link 120 can be an ideal backhaul link that can support communications such as Single Downlink Control Information (DCI) multiple TRP operations, in which different Physical Downlink Shared Channel (PDSCH) schemes are supported, such as Spatial Division Multiplexing (SDM), Time Division Multiplexing (TDM), and Frequency Division Multiplexing (FDM). In some other examples, the backhaul link 120 may be non-ideal, which may support communications such as multi-DCI multi-TRP operations, in which a carrier aggregation framework may be used, such that from the perspective of UE 115, different TRPs are configured as different virtual component carriers.

[0072] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base station transceiver, radio base station, access point, radio transceiver, node B, eNodeB (eNB), next-generation node B or gigabit node B (any of which may be referred to as gNB), home node B, home eNodeB or other suitable terms.

[0073] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or some other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, among other examples. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, among other examples, which may be implemented in various objects such as appliances, vehicles, meters, and other examples.

[0074] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that may sometimes act as repeaters, as well as base station 105 and network devices, including such... Figure 1 The examples shown include macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, and others.

[0075] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a collection of radio spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio frequency spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating the operation of the carrier, user data, or other signaling. Wireless communication system 100 can use carrier aggregation or multi-carrier operation to support communication with UE 115. UE 115 can be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation can be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0076] In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. The carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Channel Number (EARFCN)) and can be located according to a channel grid for discovery by UE 115. The carrier can operate in standalone mode, where UE 115 can perform initial acquisition and connection via the carrier, or the carrier can operate in non-standalone mode, in which different carriers (e.g., the same or different radio access technologies) are used to anchor the connection.

[0077] The communication link 125 shown in the wireless communication system 100 may include uplink transmission from UE 115 to base station 105, or downlink transmission from base station 105 to UE 115. A carrier may carry either downlink or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).

[0078] A carrier can be associated with a specific bandwidth of the radio spectrum, and in some examples, the carrier bandwidth can be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth can be one of several defined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) can have a hardware configuration that supports communication on a specific carrier bandwidth, or can be configured to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 can be configured to operate on a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0079] The signal waveform transmitted on a carrier can consist of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as Orthogonal Frequency Division Multiplexing (OFDM) or Discrete Fourier Transform Spread Spectrum OFDM (DFT-S-OFDM). In a system employing MCM, a resource element can consist of one symbol period (e.g., the duration of a modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element can depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate the UE 115 can achieve. Wireless communication resources can refer to a combination of radio spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can also increase the data rate or data integrity used for communication with the UE 115.

[0080] One or more digital schemes (numerologies) for a carrier can be supported, where the digital scheme can include subcarrier spacing (Δf) and a cyclic prefix. A carrier can be divided into one or more BWPs with the same or different digital schemes. In some examples, UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier can be active at a given time, and communication for UE 115 can be restricted to one or more active BWPs.

[0081] The time interval of base station 105 or UE 115 can be expressed as a multiple of the basic time unit, for example, it can refer to T. s =1 / (Δf) max ·N f The sampling period is ) seconds, where Δf maxThis can represent the maximum supported subcarrier spacing, and N f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resource can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a system frame number (e.g., ranging from 0 to 1023).

[0082] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into (e.g., in the time domain) subframes, and each subframe may be further divided into multiple time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include multiple symbol periods (e.g., depending on the length of the cyclic prefix preceding each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple micro-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N) f Sampling period. The duration of the symbol period can depend on the subcarrier spacing or the operating frequency band.

[0083] A subframe, time slot, micro-time slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in a burst of shortened TTIs (sTTIs)).

[0084] Physical channels can be multiplexed on a carrier using various techniques. For example, physical control channels and physical data channels can be multiplexed on a downlink carrier using one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number of symbol periods and can extend across the system bandwidth of the carrier or a subset of the carrier's system bandwidth. One or more control regions (e.g., CORESETs) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search for control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates arranged in a cascaded manner in one or more aggregation levels. An aggregation level for control channel candidates can refer to multiple control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115, and a UE-specific search space set used to send control information to a particular UE 115.

[0085] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" refers to a logical communication entity used to communicate with base station 105 (e.g., via a carrier) and may be associated with an identifier used to distinguish neighboring cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or others). In some examples, a cell may also refer to a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which the logical communication entity operates. The extent of such a cell can range from a small area (e.g., a structure, a subset of structures) to a large area, depending on various factors (e.g., the capabilities of base station 105). For example, a cell may be or include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110, among other examples.

[0086] Macro cells typically cover a relatively large geographical area (e.g., a radius of several kilometers) and can allow unrestricted access for UE 115 with services subscribed to by a network provider supporting the macro cell. In contrast, small cells can be associated with low-power base station 105 and can operate in the same or different (e.g., licensed or unlicensed) frequency bands as macro cells. Small cells can provide unrestricted access to UE 115 with services subscribed to by a network provider, or restricted access to UE 115 associated with the small cell (e.g., UE 115 in a Closed Subscriber Group (CSG), or UE 115 associated with a user in a home or office). Base station 105 can support one or more cells and can also use one or more component carriers to support communication on one or more cells.

[0087] In some examples, a carrier can support multiple cells, and different cells can be configured based on different protocol types that can provide access to different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).

[0088] In some examples, base station 105 may be mobile and thus provide communication coverage for mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 use the same or different radio access technologies to provide coverage for various geographic coverage areas 110.

[0089] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, base stations 105 can have similar frame timing, and transmissions from different base stations 105 can be approximately time-aligned. For asynchronous operation, base stations 105 can have different frame timing, and transmissions from different base stations 105 may not be time-aligned in some examples. The techniques described herein can be used for both synchronous and asynchronous operation.

[0090] Some UE 115 devices (such as MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with base station 105 without human intervention. In some examples, M2M communication or MTC can include communication from devices that integrate sensors or instruments for measuring or capturing information and relaying that information to a central server or application, which can then utilize that information or present it to people interacting with the application. Some UE 115 devices can be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, medical monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based service charging.

[0091] Some UE 115s can be configured to operate in a power-saving mode, such as half-duplex communication (e.g., a mode that supports unidirectional communication via either transmission or reception, but not simultaneously). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UE 115s include entering a power-saving deep sleep mode when not engaged in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UE 115s can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a carrier's guard band, or outside a carrier.

[0092] Wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE 115 can be designed to support ultra-reliable, low-latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private or group communication and can be supported by one or more mission-critical services (e.g., mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData)). Support for mission-critical functions can include prioritizing services that are available for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency are used interchangeably herein.

[0093] In some examples, UE 115 is also capable of communicating directly with other UE 115 via device-to-device (D2D) communication link 135 (e.g., using peer-to-peer (P2P) or D2D protocols). One or more UE 115s utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be located outside the geographic coverage area 110 of base station 105 or unable to receive transmissions from base station 105. In some examples, the group of UE 115s communicating via D2D communication may use a one-to-many (1:M) system, in which each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between the UE 115s without the involvement of base station 105.

[0094] In some systems, the D2D communication link 135 may be an example of a communication channel (e.g., a lateral link communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination thereof. Vehicles may transmit information related to traffic conditions, signal control, weather, safety, emergencies, or any other information related to the V2X system. In some examples, vehicles in a V2X system may communicate with roadside infrastructure (e.g., roadside units), or communicate with the network via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both.

[0095] Core network 130 can provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC), and can include at least one control plane entity (e.g., a mobility management entity (MME), access and mobility management function (AMF)) managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), packet data network (PDN) gateway (P-GW), or user plane function (UPF)) routing packets or interconnects to external networks. The control plane entity can manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by base station 105 associated with core network 130. User IP packets can be transmitted through the user plane entity, which can provide IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Operator IP service 150 can include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0096] Some network devices (e.g., base station 105) may include sub-components (e.g., access network entity 140), which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UE 115 through one or more other access network transport entities 145, which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio headends and ANCs) or combined into a single network device (e.g., base station 105).

[0097] In some examples, the wireless communication system 100 can support multiple TRP configurations for different frequency bands (e.g., FR1, FR2, etc.). Wireless devices in the wireless communication system 100 (e.g., base station 105 and UE 115) can use such multiple TRP or multi-panel configurations to increase the channel reliability and robustness of various channels, including PDSCH, PDCCH, PUSCH, and the Physical Uplink Control Channel (PUCCH). In some examples, the wireless devices can identify and specify other system aspects, such as enhancements related to the Quasi-Cooperative Positioning (QCL) Transmission Configuration Indicator (TCI), to enable inter-cell multiple TRP operation, for example, where the wireless communication system 100 supports multi-PDSCH reception based on multiple DCI. Furthermore, the wireless devices can evaluate or specify various beam management-related procedures for multiple TRP transmissions with simultaneous multi-panel reception.

[0098] Furthermore, some wireless communication systems 100 may be examples of high-speed train (HST) deployments, which can operate using SFN configurations. In this case, the wireless communication system 100 can support various QCL assumptions for downlink modulation reference signaling (DMRS) (e.g., multiple QCL assumptions for the same DMRS port for DL-only transmissions). Additionally, the wireless communication system 100 can support QCL relationships (or QCL-like relationships) between downlink and uplink signals by reusing the TCI signaling framework.

[0099] Wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. The region from 300 MHz to 3 GHz is generally referred to as the Ultra High Frequency (UHF) region or decimeter band because the wavelength range extends from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features; however, the waves can penetrate structures sufficiently to enable macrocells to provide service to UE 115 located indoors. Compared to transmissions using lower frequencies and longer waves in the spectrum below 300 MHz in the High Frequency (HF) or Very High Frequency (VHF) portions, UHF wave transmissions can be associated with smaller antennas and shorter distances (e.g., less than 100 km).

[0100] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band), or in the extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz), also known as the millimeter band. In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between the UE 115 and the base station 105, and the EHF antennas of the individual devices can be smaller and more closely spaced than UHF antennas. In some examples, this can facilitate the use of antenna arrays within the devices. However, compared to SHF or UHF transmissions, EHF transmissions may suffer greater atmospheric attenuation and shorter range. The techniques disclosed herein can be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may vary by country or regulatory body.

[0101] Wireless communication system 100 can utilize both licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 can employ Licensed Assisted Access (LAA) or LTE Unlicensed (LTE-U) radio access technology or NR technology in unlicensed bands such as the 5 GHz Industrial, Scientific, and Medical (ISM) band. When operating in unlicensed radio frequency bands, devices (such as base station 105 and UE 115) can employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed bands can be based on carrier aggregation configurations that combine component carriers operating in licensed bands (e.g., LAA). Operation in unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.

[0102] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array with multiple rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, antenna panels may support radio frequency beamforming for signals transmitted via antenna ports.

[0103] Base station 105 or UE 115 can use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such a technique can be called spatial multiplexing. For example, multiple signals can be transmitted by a transmitting device via different antennas or different combinations of antennas. Similarly, multiple signals can be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals can be referred to as a separate spatial stream and can carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers can be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO) where multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO) where multiple spatial layers are transmitted to multiple devices.

[0104] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape antenna beams or manipulate antenna beams (e.g., transmit beams, receive beams) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array such that some signals propagating relative to the antenna array in a particular direction undergo constructive interference while others undergo destructive interference. The adjustment of signals transmitted via antenna elements can include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with the device. The adjustment associated with each of these antenna elements can be defined by a beamforming weight set associated with a particular direction (e.g., relative to the antenna array of the transmitting or receiving device or relative to some other direction).

[0105] Base station 105 or UE 115 may use beam scanning technology as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Base station 105 may transmit several signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions. For example, base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used to identify (e.g., by a transmitting device such as base station 105, or by a receiving device such as UE 115) the beam direction for later transmission or reception by base station 105.

[0106] Some signals (such as data signals associated with a specific receiving device) may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with a receiving device such as UE 115). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signals received by UE 115 with the highest signal quality or acceptable signal quality.

[0107] In some examples, multiple beam directions can be used to perform transmissions by a device (e.g., base station 105 or UE 115), and the device can use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from base station 105 to UE 115). UE 115 can report feedback indicating precoding weights for one or more beam directions, and this feedback can correspond to a configured number of beams spanning the system bandwidth or one or more subbands. Base station 105 can transmit reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)), which can be precoded or unprecoded. UE 115 can provide feedback for beam selection, which can be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multifaceted codebook, linear combination codebook, port selection codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying the beam direction of subsequent transmission or reception of UE 115) or for transmitting signals in a single direction (e.g., for transmitting data to a receiving device).

[0108] A receiving device (e.g., UE 115) may attempt multiple receiving configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiving device may attempt multiple receiving directions by: receiving via different antenna subarrays; processing the received signals according to different antenna subarrays; receiving according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different sets of directional listening weights); or processing the received signals according to different sets of receiving beamforming weights applied to signals received at multiple antenna elements of the antenna array. Any of these can be referred to as “listening” according to different receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving data signals). The single receiving configuration may be aligned on a beam direction determined based on listening according to different receiving configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0109] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly for communication over a logical channel. The media access control (MAC) layer may perform priority processing and multiplexing of the logical channel into the transport channel. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In some examples, the MAC layer may use MAC control elements (CEs) that can indicate control information to configure the transmission. For example, a MAC-CE may be used to map active TCI states to DCI code points (e.g., a MAC-CE may activate TCI states and map one or more of these TCI states to DCI code points). In this case, the number of bits (e.g., three bits) may be used to indicate the TCI field in the DCI, and the TCI field may indicate one or more TCI states.

[0110] In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections between UE 115 and base station 105 or core network 130 that support radio bearers for user plane data. At the physical layer, transport channels can be mapped to physical channels.

[0111] UE 115 and base station 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correct data reception over communication link 125. HARQ can include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve MAC layer throughput under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device can support same-slot HARQ feedback, where the device can provide HARQ feedback in a specific time slot for data received in a previous symbol within that time slot. In other cases, the device can provide HARQ feedback in subsequent time slots or according to some other time interval.

[0112] The wireless communication system 100 can support signaling between the UE 115 and multiple TRPs or a base station 105 configured as an SFN. In some cases, the UE 115 may travel at high speeds, such as on the HST, and may experience Doppler shifts that affect both uplink and downlink communication at the UE 115. For example, the Doppler shift associated with downlink transmissions may affect the UE 115's ability to identify and combine reference signals transmitted from TRPs in the system, especially when the Doppler shift measured for each TRP is different. Therefore, to reduce the impact of Doppler shift on high-speed communication, the UE 115 can measure and report Doppler shift parameters for each TRP, and each TRP can adjust ongoing communication to compensate for the reported Doppler shift.

[0113] UE 115 can identify a Doppler shift measurement configuration for measuring various Doppler shift parameters and reporting them to one or more TRPs. UE 115 can receive a measurement configuration from one or more TRPs, which includes measurement constraint parameters indicating the number of durations that UE 115 can use to estimate the Doppler shift. For example, a TRP may transmit multiple reference signals, and UE 115 determines, based on the measurement constraint parameters, the durations that it can use to estimate the Doppler shift, where the durations include one or more of the transmitted reference signals. In one example, depending on the measurement constraint parameters, UE 115 can estimate the Doppler shift parameters over a single duration (e.g., a single “shot”), or UE can average multiple estimated Doppler shift parameters over multiple instances of the duration (e.g., multiple “shots”).

[0114] In some examples, UE 115 can adjust how it measures the Doppler shift parameter based on a precision target or measurement granularity used for reporting the Doppler shift. For example, UE 115 can assign Doppler shift values ​​to individual frequency bins based on the range of the Doppler shift values ​​or whether the reported Doppler shift is higher or lower than a determined threshold Doppler shift value, or it can assign Doppler shift measurements to frequency bins based on the sign of the determined Doppler shift (e.g., positive or negative, depending on the UE's direction of travel relative to the TRP).

[0115] Figure 2 An example of a wireless communication system 200 supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. The wireless communication system 200 may include UE 115-a, which may be a reference Figure 1 The example of UE 115 described herein. Additionally, the wireless communication system 200 may include TRPs 205-a and 205-b, which may be references. Figure 1 Examples of base station 105 or access network transport entity 145 described. In some examples, UE 115-a can be configured to communicate with multiple TRPs; for example, UE 115-a can support communication under a multi-TRP network configuration.

[0116] UE 115-a can communicate with the serving cell via a first TRP 205-a and a second TRP 205-b. In some cases, UE 115-a can communicate with an additional TRP 205 associated with the serving cell in the SFN deployment. UE 115-a can receive one or more indications (e.g., via RRC signaling, MAC-CE signaling, DCI) associated with receiving downlink transmissions from TRPs 205-a and 205-b. For example, UE 115-a can be configured to support multi-TRP operation for the serving cell, wherein UE 115-a can operate according to a single-DCI-based mode or a multi-DCI-based mode (e.g., partially based on ideal or non-ideal backhaul configuration) for multi-TRP operation.

[0117] In some implementations, UE 115-a can support wireless communication during high-speed travel (e.g., on HST or other high-speed deployments). However, in some cases, uplink and downlink signaling at UE 115-a may experience Doppler shift that affects the signaling quality and reliability between UE 115-a and TRP 205. For example, Doppler shift associated with downlink transmissions may affect UE 115-a's ability to identify and combine reference signals transmitted from TRPs 205-a and 205-b, especially when the Doppler shift measured for each TRP 205 is different. Therefore, to mitigate the effects of Doppler shift, UE 115-a can measure and report Doppler shift parameters for each TRP in TRPs 205-a and 205-b, allowing each TRP to adjust ongoing communication to compensate for the reported Doppler shift.

[0118] In some examples, UE 115-a may be able to estimate various Doppler parameters or metrics associated with different channels between UE 115-a and TRP 205 (e.g., the channel between UE 115-a and TRP 205-a and the channel between UE 115-a and TRP 205-b). UE 115-a may receive a measurement configuration message 210 (e.g., via DCI or other control signaling) associated with measuring one or more reference signals transmitted from one or more TRPs 205. In some examples, the measurement configuration in the measurement configuration message 210 may be a Channel State Information (CSI) report configuration (e.g., CSIreport-Config), which may indicate multiple parameters that UE 115-a may include in a measurement report 225 to be sent to one or more TRPs. Furthermore, the measurement report 225 may be configured for periodic or semi-periodic reports transmitted by UE 115-a on the uplink channels (e.g., PUCCH, PUSCH, etc.) of the serving cell.

[0119] In some cases, the measurement configuration may include a measurement restriction parameter 220, such as a time restriction parameter (e.g., timeRestrictionForChannelMeasurement), which indicates the number of durations during which UE 115-a can use to estimate and report the measured Doppler shift. In this case, the duration may be a time period (e.g., one or more time slots) or a set of reference signals that UE 115-a can use to measure the Doppler shift.

[0120] Measurement restriction parameter 220 can instruct UE 115-a to implement different measurement configurations for measuring Doppler frequency shift. In one example, measurement restriction parameter 220 may include an integer value corresponding to the number of durations or time slots that UE 115-a can use to estimate the Doppler frequency shift parameter. In some other examples, measurement restriction parameter 220 may be configured for Doppler measurements performed by UE 115-a (e.g., the value of measurement restriction parameter 220 is "configured"), and UE 115-a may measure Doppler frequency shift based on a time restriction (e.g., a time restriction is configured). When UE 115-a determines that a time restriction is configured, UE 115-a may measure Doppler frequency shift over a single duration. For example, UE 115-a may measure Doppler frequency shift over a single "shot" corresponding to a single duration or a single configured set of reference signals. In this case, UE 115-a can measure the Doppler frequency shift parameter associated with a reference signal transmitted over a single duration, and can use the value measured on a single “lens” to generate a measurement report 225.

[0121] In some other cases, UE 115-a may determine that a time limit is not configured, and UE 115-a may measure Doppler shift over multiple durations. For example, UE 115-a may be configured to measure multiple “shots” corresponding to multiple durations or multiple configured sets of reference signals. In such cases, UE 115-a may measure Doppler shift parameters associated with the transmitted reference signal over multiple durations, and UE 115-a may perform Doppler shift estimation averaging (e.g., UE 115-a may calculate the average of the Doppler shift parameters measured over multiple durations), and may use the averaged measured Doppler shift values ​​to generate a measurement report 225. In some cases, by performing “multi-shot” measurements of the Doppler shift parameters, UE 115-a may use previous reference signal Doppler shift measurements to improve the accuracy of the measured Doppler shift.

[0122] In some implementations, UE 115-a can identify a measurement accuracy target for Doppler shift parameter estimation. The measurement accuracy target can be configured by the wireless communication network 200 or indicated to UE 115-a by one or more TRPs 205. The Doppler shift measurement accuracy target can be a threshold accuracy value based on the measurement configuration, for example, based on whether UE 115-a is configured to use a single “lens” over a single duration or multiple “lenses” over multiple durations to measure the Doppler shift parameter. In such an example, the measurement accuracy target can be larger for measurements over multiple durations.

[0123] In some other examples, measurement accuracy can be correlated with the number of reference signals or the timing structure of the reference signals that UE 115-a can use to estimate the Doppler shift parameters. For example, if the Doppler shift measurement is based on a 2-slot tracking reference signal (TRS), the measurement accuracy can be higher than that of a single-slot TRS and single-sideband (SSB) measurement. In some other cases, measurement accuracy can be correlated with the DMRS of the PDSCH, in which case the measurement accuracy can be based on the number of DMRS symbols present in the PDSCH.

[0124] When measuring Doppler frequency shift parameters, UE 115-a can generate a measurement report 225 (e.g., a CSI measurement report) associated with the Doppler frequency shift measured on the received reference signal and send it to TRP 205. UE 115-a can identify the range of Doppler frequency shift values ​​it can report to TRP 205 (e.g., threshold-resolvable Doppler frequency shift values). In some cases, the range of Doppler frequency shift values ​​can be based on the reference signal structure used for Doppler frequency shift measurement. In this case, UE 115-a can determine the range as the time-domain gap between two consecutive measurement samples or the reciprocal of the time between the reference signal. In some other examples, TRP 205-a or 205-b can configure the range of Doppler frequency shift values ​​that UE 115-a can report and can inform UE 115-a of the configured range. In some other cases, UE 115-a may report the threshold pull-in range in a first transmission (e.g., in MAC-CE) and may report the Doppler shift measurement in a second transmission (e.g., in an uplink control information (UCI) transmission). Similarly, in some cases, UE 115-a may report the threshold pull-in range in the first part of the CSI report and report the measurement in the second part of the CSI report.

[0125] UE 115-a can determine the granularity for reporting Doppler shift parameters based on the number of durations (e.g., single or multiple "shots") used to measure the Doppler shift or based on the range of resolvable Doppler shift values. For example, in some implementations, UE 115-a can identify the number of frequency bins used to report the estimated Doppler shift parameters. UE 115-a can quantize the estimated Doppler shift into digital and discrete values ​​based on the frequency bin size. For example, UE 115-a can use multiple bits (N bits) to report the Doppler shift parameters and can assign 2 bits to the quantized Doppler shift parameters. N Frequency warehouse.

[0126] In some other examples, UE 115-a can identify frequency bins corresponding to uncertain Doppler shift measurements. For example, when the measured Doppler shift is uncertain, or when UE 115-a cannot estimate the Doppler shift, UE 115-a can assign the measurement to that frequency bin. In yet another example, UE 115-a can assign a first frequency bin to estimated Doppler shift values ​​that are less than a threshold Doppler shift value. For example, for a determined Doppler shift threshold X, the first frequency bin can contain Doppler shift values ​​less than X. UE 115-a can assign a second frequency bin to estimated Doppler shift values ​​that are greater than a threshold Doppler shift value. For example, the second frequency bin can contain Doppler shift values ​​greater than X.

[0127] In yet another example, the granularity of the Doppler shift report can be based on a one-bit indication representing the sign (e.g., positive or negative) of the estimated Doppler shift. For example, if the estimated Doppler shift is positive (e.g., UE115-a is moving towards the TRP), the one-bit indication can have a first value; and if the estimated Doppler shift is negative (e.g., UE115-a is moving away from the TRP), the one-bit indication can have a second value different from the first value.

[0128] UE 115-a can generate a measurement report 225 (e.g., a CSI measurement report) associated with the Doppler shift measured on the received reference signal, based on a defined granularity of the report. UE 115-a can send the measurement report 225 to one or more TRPs, which can use the measurement report 225 to identify the Doppler shift parameters of the reference signal sent to UE 115-a. However, in some cases, the measurement report 225 may conflict with one or more other communications sent to TRP 205. In such cases, a priority ordering rule can be applied to the conflict. For example, if multiple CSI reports with the same time-domain behavior and physical channel conflict, these reports can be prioritized based on their content. In some cases, beam reports may take precedence over Doppler shift report information, and both beam reports and Doppler shift reports may take precedence over CSI reports. In other cases, beam reports may take precedence over CSI reports, and both beam reports and CSI reports may take precedence over Doppler shift report information. Furthermore, other priority ordering rules are also possible.

[0129] For a measurement report 225 containing multiple Doppler shift estimates (e.g., shifts from multiple reference signals, multiple component carriers, or offsets from multiple frequency bands), UE 115-a can prioritize the Doppler shifts based on the reference signal ID, CORESET ID, and QCL-Info ID.

[0130] In some examples, UE 115-a can receive reference signal 215 and can send measurement report 225 based on the TCI state corresponding to TRP 205, which in some cases allows UE 115-a to identify transmissions from each TRP 205 in the SFN. In some cases, one or both of the TRPs 205 can send indications (e.g., via DCI) of a first TCI state associated with the first reference signal 215 and a second TCI state (e.g., unique to the first TCI state) associated with the second reference signal 215. In some cases, UE 115-a can identify which TRP 205 is associated with which reference signal 215 based on the TCI state associated with the reference signal 215 (e.g., based on the CORESET associated with the received DCI indicating the TCI state). That is, the CORESET associated with the DCI indication can be associated with a CORESET index (e.g., CORESETPoolIndex) indicating one or more TRPs 205.

[0131] For example, a first TRP 205-a may be associated with a first CORESET index, and a TRP 205-b may be associated with a second CORESET index. Here, UE 115-a can identify the association of the first TCI state with the first reference signal 215 based on the CORESET indicating the first TCI state associated with the first CORESET index. Furthermore, UE 115-a can identify the association of the second TCI state with the second reference signal 215 based on the CORESET indicating the second TCI state associated with the second CORESET index. UE 115-a can determine which reference signals are transmitted from each TRP 205 based on the TCI state and the CORESET index, and similarly associate the generated measurement report 225 to be associated with the TCI state with the CORESET index associated with the corresponding TRP 205, such that each TRP 205 can identify the Doppler shift and the measurement report 225. For example, UE 115-a may indicate in measurement report 225 to one or both of TRP 205 that the estimated Doppler parameters (e.g., estimated Doppler shift, estimated Doppler spread, or both) are associated with the first TRP 205-a and the second TRP 205-b.

[0132] Figure 3A and Figure 3BExamples of a Tracking Reference Signal (TRS) configuration 300-a and a reference signal structure 300-b supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, are shown respectively. In some examples, the TRS configuration 300-a and the reference signal structure 300-b can implement aspects of the wireless communication system 100. For example, the TRS configuration 300-a and the reference signal structure 300-b can be used for reference... Figure 1 and Figure 2 The communication between UE 115 and TRP 205 is described. Although the reference TRS describes... Figure 3A and Figure 3B Examples are provided, but it should be understood that any other reference signal can be used for the measurement and reporting of Doppler frequency shift parameters as described herein.

[0133] Figure 3A A tracking reference signal configuration 300-a is illustrated, which can be used by a UE for time-frequency tracking and, in some cases, can indicate a reference signal configuration that the UE can use to measure one or more Doppler shift parameters. In some examples, the UE can be configured with a CSI-RS, which can indicate a configuration for TRS, including a reference signal structure for measuring Doppler shift. TRS configuration 300-a can be a TRS burst, which can consist of two TRS symbols 305 in two adjacent time slots (e.g., time slot 1 and time slot 2). In some examples, the TRP or base station can use the TRS burst to send a reference signal to the UE. The TRS burst can be repeated according to a time period 310 (e.g., a 10ms, 20ms, 40ms, or 80ms TRS burst period). Each time slot can include multiple configurable symbol positions 320 for TRS. Each symbol position 320 can be separated by an inter-symbol distance 315 of four OFDM symbols. Furthermore, each subcarrier position of the TRS can be separated by an inter-subcarrier distance of four subcarriers. In some implementations, the UE's ability to measure and report Doppler frequency shift parameters can be based on the reference signal structure of time-frequency tracking and TRS.

[0134] Figure 3B A base station or TRP (e.g., reference) is shown. Figure 2 The described TRP 205 can be used to transmit reference signals to a UE in a wireless communication network, as exemplified by reference signal structure 300-b. Reference signal structure 300-b may include multiple time slots 325 (e.g., 0.5 ms, 30 kHz time slots), which may include multiple reference signals 330. The reference signal structure can be configured for duration 335, which may indicate the time period or number of time slots during which the UE can monitor the reference signals.

[0135] The reference signal structure 300-b can be configured based on the number of observations of the reference signal during duration 335 and based on the number of symbols allocated to each reference signal. In some cases, the reference signal structure can be indicated by a pair of representations (A, B), where A is the number of reference signal observations within duration 335, and B represents the number of symbols observed for each reference signal. Each reference signal configuration can be associated with different Doppler parameters, such as Doppler resolution and maximum resolvable Doppler. In some examples, the UE can receive a measurement configuration message 210 from one or more TRPs in the wireless communication network, which can indicate the number of reference signal durations that the UE can use to measure the Doppler shift parameter. In some cases, a single duration can be a set of reference signals indicated by the reference signal configuration 300-b. Furthermore, each reference signal configuration can represent a single duration or "lens," and the UE can measure a single reference signal configuration or multiple reference signal configurations to determine the measurement of the Doppler shift associated with the reference signal.

[0136] In the first example set, the reference signal structure may include 16 reference signal observations (e.g., A = 16). For a reference signal structure with a duration of 8 ms and 14 symbol intervals per reference signal (e.g., (A,B) = (16,14)), the Doppler resolution may be 125 Hz, and the maximum resolvable Doppler may be 2000 Hz. For a reference signal structure with a duration of 4 ms and 7 symbol intervals per reference signal (e.g., (A,B) = (16,7)), the Doppler resolution may be 250 Hz, and the maximum resolvable Doppler may be 4000 Hz. For a reference signal structure with a duration of 1.1 ms and 2 symbol intervals per reference signal (e.g., (16,2)), the Doppler resolution may be 875 Hz, and the maximum resolvable Doppler may be 14000 Hz.

[0137] In the second example set, the reference signal structure may include eight reference signal observations (e.g., A = 8). For a reference signal structure with a duration of 4 ms and a 14-symbol interval for each reference signal (e.g., (A,B) = (8,14)), the Doppler resolution may be 250 Hz, and the maximum resolvable Doppler may be 2000 Hz. For a reference signal structure with a duration of 2 ms and a 7-symbol interval for each reference signal (e.g., (A,B) = (8,7)), the Doppler resolution may be 500 Hz, and the maximum resolvable Doppler may be 4000 Hz. For a reference signal structure with a duration of 0.6 ms and a 2-symbol interval for each reference signal (e.g., (A,B) = (8,2)), the Doppler resolution may be 1750 Hz, and the maximum resolvable Doppler may be 14000 Hz.

[0138] In the third example set, the reference signal structure may include four reference signal observations (e.g., A = 4). For a reference signal structure with a duration of 2 ms and a 14-symbol interval for each reference signal (e.g., (A,B) = (4,14)), the Doppler resolution may be 500 Hz, and the maximum resolvable Doppler may be 2000 Hz. For a reference signal structure with a duration of 1 ms and a 7-symbol interval for each reference signal (e.g., (A,B) = (4,7)), the Doppler resolution may be 1000 Hz, and the maximum resolvable Doppler may be 4000 Hz. For a reference signal structure with a duration of 0.28 ms and a 2-symbol interval for each reference signal (e.g., (A,B) = (4,2)), the Doppler resolution may be 3500 Hz, and the maximum resolvable Doppler may be 14000 Hz.

[0139] The UE's ability to measure the Doppler shift associated with the transmitted reference signal can be affected by the frequency and time configuration of the reference signal. For example, increasing the number of reference signals within a given time period can increase processing gain, but it may also increase the pull-in range (e.g., maximum / minimum resolvable Doppler range). The time-frequency tracking performance, as well as the Doppler delay and spread estimation performance (given in the leftmost column of Table 1), for various parameters is affected by the reference configuration parameters (given in the top column of Table 1). Table 1 illustrates the impact of the reference signal configuration on various tracking performance parameters.

[0140] Table 1: Impact of Reference Signal Mode on Tracking Performance

[0141]

[0142] Figure 4 An example of a process flow 400 supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown. In some examples, process flow 400 can be implemented as described in the reference. Figure 1 - Some aspects of the wireless communication system depicted in Figure 3. For example, UE 115-b can be a reference. Figure 1 - An example of UE 115 as depicted in Figure 3. Additionally, base station 105-a may include TRPs 205-c and 205-d, which may be references. Figure 1 - Examples of base station 105 and TRP 205 as depicted in Figure 3.

[0143] At 405, TRPs 205-c and 205-d can identify a measurement constraint parameter that instructs UE115-b to perform measurements thereon to estimate the number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from TRPs 205-c and 205-d. In some examples, each duration may correspond to an allocated time for monitoring the set of reference signals and may be one or more time slots within that duration.

[0144] At 410 and 415, TRP 205-c and 205-d may optionally send one or more measurement configuration messages to UE 115-b, the measurement configuration messages including measurement constraint parameters for estimating one or more Doppler frequency shift parameters associated with the reference signal set.

[0145] At 420, UE 115-b may receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with the set of reference signals 425 and 430 transmitted from TRPs 205-c and 205-d. UE 115-b may identify measurement limiting parameters (e.g., transmitted as part of the measurement configuration) that indicate the number of durations on which UE 115-b is configured to perform measurements to estimate one or more Doppler frequency shift parameters. In some examples, each of the number of durations includes multiple reference signals from the set of reference signals 425 and 430.

[0146] In some cases, the measurement configuration may include various additional information for the UE 115-b to generate measurement reports for the estimated Doppler frequency shift parameters. In some cases, the UE 115-b may identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters, and the measurement accuracy may be based on measurement limiting parameters. In some examples, the measurement limiting parameter may indicate the number of durations, and the measurement accuracy may be determined based on whether said number of durations is greater than a single duration indicated by the measurement limiting parameter. In some other cases, the measurement accuracy used to estimate one or more Doppler frequency shift parameters may be based on the transmission timing structure of the set of reference signals 425 and 430 (e.g., reference signal configuration), or in some cases, the measurement accuracy may be based on the reference signal type.

[0147] In some cases, the duration of the number indicated in the measurement constraint parameters may correspond to a single duration associated with a single configuration group of the set of reference signals 425 and 430, and UE 115-b may estimate the Doppler shift parameter using measurements on the single duration of the Doppler shift associated with the single configuration group of the set of reference signals 425 and 430. In other cases, the duration of the number indicated in the measurement constraint parameters may correspond to a set of multiple durations associated with multiple configuration groups of the set of reference signals 425 and 430, and UE 115-b may estimate the Doppler shift parameter based on a calculated average of the Doppler shift values ​​associated with the set of multiple durations. In yet another case, UE 115-b may determine that the measurement constraint parameters indicate that UE 115-b is configured to perform measurements thereon to estimate one or more Doppler shift parameters in one or more time slots, and UE 115-b may estimate the Doppler shift parameter based on the integer value of the time slot indicated by the measurement constraint parameters.

[0148] At 435, UE 115-b can estimate Doppler frequency shift parameters based on measurement configuration and measurement constraint parameters. Furthermore, UE 115-b can identify a range of resolvable Doppler frequency shift values ​​(e.g., based on received downlink messages, measurement configuration, or other indications) and can estimate one or more Doppler frequency shift parameters based on the range of resolvable Doppler frequency shift values. In some cases, the range may include time-domain gaps between consecutive samples of a reference signal set. Additionally or alternatively, UE 115-b may report the range of resolvable Doppler frequency shift values ​​in a measurement report, wherein a first portion of the report indicates the estimated Doppler frequency shift parameters, and a second portion of the report indicates the range of resolvable Doppler frequency shift values.

[0149] UE 115-b can also generate measurement reports based on the granularity used to report one or more Doppler frequency shift parameters. For example, UE 115-b can allocate multiple bits for reporting one or more Doppler frequency shift parameters, and the granularity used for reporting one or more Doppler frequency shift parameters can be determined based on the range of resolvable Doppler frequency shift values ​​and the number of bits. In some other examples, UE 115-b can determine the granularity of the measurement report based on the number of durations on which UE 115-b is configured to estimate one or more Doppler frequency shift parameters.

[0150] UE 115-b can also determine the granularity of measurement reporting by assigning one or more measured Doppler shift parameters to multiple frequency bins. UE 115-b can identify a set of frequency bins associated with one or more Doppler shift values ​​and can identify the numerical values ​​representing the Doppler shift parameters (e.g., the Doppler shift parameters can be quantized based on the numerical assignment). UE 115-b can assign the estimated Doppler shift parameters to frequency bins within the set of frequency bins based on the determined numerical values. In some cases, a first frequency bin can be associated with Doppler shift values ​​less than a threshold, while a second frequency bin can be associated with Doppler shift values ​​exceeding a threshold. In some other cases, based on the movement of UE 115-b relative to TRP205-c and 205-d, UE 115-b can generate bits indicating the estimated one or more Doppler shift parameters as having positive or negative values.

[0151] At 440, UE 115-b can send a measurement report, including the estimated Doppler frequency shift parameters, to TRP205-c, TRP 205-d, or both. In some cases, the measurement report may be a CSI report indicating multiple parameters such as beam information, estimated Doppler parameters, and CSI parameters.

[0152] In some cases, UE 115-b can identify temporal overlap (e.g., conflict) between a first CSI report (e.g., a measurement report) and a second CSI report, and UE 115-b can determine the priority order of the first and second CSI reports based on their respective components. For example, UE 115-b can determine the priority order based on beam reporting information, Doppler reporting information, or channel quality information identified in the first and second CSI reports. For example, UE 115-b can prioritize beam reporting information over Doppler reporting information or CSI report information. Additionally, UE 115-b can determine the priority order of the first and second CSI reports based on a reference signal identifier, control resource set identifier, or quasi-cooperative positioning information identifier associated with the CSI report. In some other cases, UE 115-b can determine the priority order based on downlink messages from TRP 205.

[0153] In some examples, UE 115-b can send a measurement report with multiple indicators, enabling TRP 205 to identify whether the measurement report is associated with a reference signal sent by TRP 205. UE 115-b can generate a first indicator associated with a first Doppler shift estimation parameter used for a first TRP, and can generate a second indicator associated with a second Doppler shift estimation parameter used for a second TRP. In some examples, the indicators can be different control resource set pool indices or TCI states. UE 115-b can send a measurement report including the first indicator and the first Doppler shift estimation parameter, as well as the second indicator and the second Doppler shift estimation parameter, to TRPs 205-c and 205-d at 440.

[0154] Figure 5 A block diagram 500 of a device 505 supporting a measurement configuration for Doppler shift reporting, according to an aspect of this disclosure, is shown. Device 505 may be an example of an aspect of UE 115 as described herein. Device 505 may include a receiver 510, a communication manager 515, and a transmitter 520. Device 505 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0155] Receiver 510 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to measurement configurations for Doppler shift reporting). This information can be passed to other components of device 505. Receiver 510 can be a reference. Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 510 can use a single antenna or an array of antennas.

[0156] Communication manager 515 may receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, identify measurement constraint parameters based on the measurement configuration, the measurement constraint parameters indicating a number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of reference signals, and transmit a measurement report to one or more nodes indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, according to the measurement constraint parameters. Communication manager 515 may be an example of an aspect of communication manager 810 described herein.

[0157] The communication manager 515 or its sub-components may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 515 or its sub-components may be performed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic units, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0158] The communication manager 515 or its subcomponents may be physically located in various locations, including distributed such that some functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 515 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 515 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof.

[0159] Transmitter 520 can transmit signals generated by other components of device 505. In some examples, transmitter 520 can be co-located with receiver 510 in a transceiver module. For example, transmitter 520 can be a reference... Figure 8 Examples of various aspects of the transceiver 820 are described. The transmitter 520 can use a single antenna or an array of antennas.

[0160] Figure 6 A block diagram 600 of a device 605 supporting a measurement configuration for Doppler shift reporting, according to an aspect of this disclosure, is shown. Device 605 may be an example of an aspect of device 505 or UE 115 as described herein. Device 605 may include a receiver 610, a communication manager 615, and a transmitter 635. Device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0161] Receiver 610 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to measurement configurations for Doppler shift reporting). This information can be transmitted to other components of device 605. Receiver 610 can be a reference. Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 610 can use a single antenna or an array of antennas.

[0162] Communication manager 615 may be an example of an aspect of communication manager 515 described herein. Communication manager 615 may include a measurement configuration receiver 620, a measurement limit identification component 625, and a measurement report transmitter 630. Communication manager 615 may be an example of an aspect of communication manager 810 described herein.

[0163] The measurement configuration receiver 620 can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes.

[0164] The measurement limitation identification component 625 can identify measurement limitation parameters based on the measurement configuration, the measurement limitation parameters indicating the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of reference signals.

[0165] The measurement report transmitter 630 can send a measurement report, which indicates one or more estimated Doppler frequency shift parameters associated with a set of reference signals, to one or more nodes based on measurement constraint parameters.

[0166] Transmitter 635 can transmit signals generated by other components of device 605. In some examples, transmitter 635 can be co-located with receiver 610 in a transceiver module. For example, transmitter 635 can be a reference... Figure 8 Examples of various aspects of the transceiver 820 are described. The transmitter 635 can use a single antenna or an array of antennas.

[0167] In some examples, the communication manager 615 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 610 and transmitter 635 may be implemented as analog components (e.g., amplifiers, filters, antennas, etc.) coupled to the mobile device modem to enable wireless transmission and reception.

[0168] The communication manager 615 as described herein can be implemented to achieve one or more potential advantages. Various implementations are possible. At least one implementation enables the communication manager 615 to efficiently determine Doppler shift reporting configuration and measurement limitation parameters associated with reporting Doppler shift to one or more TRPs of the wireless network. At least one implementation enables the communication manager 615 to efficiently adapt to high-speed communication by adjusting ongoing communication based on the measured and reported Doppler shift for device 605.

[0169] Based on the Doppler frequency shift reporting technique described herein, one or more processors of device 605 (e.g., one or more processors controlling receiver 610, communication manager 815, and transmitter 635, or processors combined therewith) can improve communication reliability and accuracy by adjusting communication to compensate for measured Doppler frequency shift parameters associated with the high-speed communication of device 605. Furthermore, the Doppler frequency shift reporting technique can enhance the content of CSI reports, which device 605 can periodically transmit to the TRP within the wireless system.

[0170] Figure 7 A block diagram 700 of a communication manager 705 supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown. The communication manager 705 may be an example of aspects of the communication manager 515, communication manager 615, or communication manager 810 described herein. The communication manager 705 may include a measurement configuration receiver 710, a measurement limit identification component 715, a measurement report transmitter 720, a measurement accuracy component 725, a duration indication component 730, a Doppler shift measurement component 735, a Doppler shift resolution component 740, a measurement report generator 745, a report granularity component 750, a frequency bin allocation component 755, a collision identification component 760, a priority sorting component 765, and a TRP indicator component 770. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0171] The measurement configuration receiver 710 can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes.

[0172] The measurement limitation identification component 715 can identify measurement limitation parameters based on the measurement configuration. These parameters indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler shift parameters, wherein each duration comprises a set of reference signals. In some cases, the measurement limitation parameters indicate that the UE is configured to perform measurements on one or more time slots to estimate one or more Doppler shift parameters.

[0173] The measurement accuracy component 725 can identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters, wherein the measurement accuracy is based on a measurement constraint parameter. In some examples, the measurement accuracy component 725 can determine the number of durations indicated by the measurement constraint parameter, wherein the measurement accuracy is based on whether the number of durations includes more than a single duration.

[0174] In some examples, the measurement accuracy component 725 can identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters based on the transmission timing structure of the reference signal set.

[0175] In some examples, the measurement accuracy component 725 can identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters based on the type of reference signal associated with the set of reference signals.

[0176] The duration indication component 730 can determine that the number of durations includes a single duration corresponding to a group of individual configurations of the reference signal set. In some examples, determining the number of durations includes a set of multiple durations corresponding to a set of groups of configurations of the reference signal set. In some cases, the number of durations corresponds to the allocation time for monitoring a set of reference signals in a configuration. In some cases, the number of durations includes one or more time slots.

[0177] The Doppler frequency shift measurement component 735 can determine one or more estimated Doppler frequency shift parameters based on measurements over a single duration of the Doppler frequency shift associated with a single configuration of a set of reference signals. In some examples, the Doppler frequency shift measurement component 735 can estimate the Doppler frequency shift value based on measurements over each duration in a set of multiple durations.

[0178] In some examples, the Doppler shift measurement component 735 can determine one or more estimated Doppler shift parameters based on averaging Doppler shift values ​​associated with a set of multiple durations.

[0179] The Doppler frequency shift resolution component 740 can identify the range of resolvable Doppler frequency shift values. In some examples, the Doppler frequency shift measurement component 735 can estimate one or more Doppler frequency shift parameters based on the range of resolvable Doppler frequency shift values. In some examples, the Doppler frequency shift resolution component 740 can identify time-domain gaps between consecutive samples of a reference signal set. In some examples, the Doppler frequency shift resolution component 740 can receive downlink messages indicating the range of resolvable Doppler frequency shift values.

[0180] The measurement report generator 745 can generate a measurement report that includes a first indication of one or more estimated Doppler frequency shift parameters and a second indication of the range of resolvable Doppler frequency shift values.

[0181] In some examples, the reporting granularity component 750 can determine the granularity used to report one or more Doppler shift parameters based on the range of resolvable Doppler shift values ​​and the number of bits. The reporting granularity component 750 can identify the number of bits allocated for reporting one or more Doppler shift parameters.

[0182] In some examples, the reporting granularity component 750 may determine the granularity for reporting one or more Doppler frequency shift parameters based on the number of durations on which the UE is configured to estimate one or more Doppler frequency shift parameters. In some examples, the reporting granularity component 750 may generate bits indicating whether the estimated one or more Doppler frequency shift parameters have positive or negative values.

[0183] The frequency bin allocation component 755 can identify a set of frequency bins associated with one or more Doppler frequency shift values. In some examples, the frequency bin allocation component 755 can identify numerical values ​​representing estimated one or more Doppler frequency shift parameters. In some examples, the frequency bin allocation component 755 can assign the estimated one or more Doppler frequency shift parameters to frequency bins in the frequency bin set based on the numerical values. In some cases, the estimated one or more Doppler frequency shift parameters are quantized based on the numerical values. In some examples, determining the frequency bin set includes a first frequency bin associated with Doppler frequency shift values ​​less than a threshold and a second frequency bin associated with Doppler frequency shift values ​​exceeding the threshold.

[0184] The collision identification component 760 can identify temporal overlap between a first channel state information report and a second channel state information report, including a measurement report. The priority ranking component 765 can determine the priority ranking of the first and second channel state information reports based on their composition. In some cases, the composition includes at least one of beam reporting information, Doppler reporting information, or channel quality information reports. In some cases, the priority ranking can also be based on a reference signal identifier, control resource set identifier, or quasi-cooperative positioning information identifier associated with the measurement report.

[0185] The TRP indicator component 770 can generate a first indicator associated with a first Doppler shift estimation parameter used for a first transmit-receive point (TRP). In some examples, the TRP indicator component 770 can generate a second indicator associated with a second Doppler shift estimation parameter used for a second TRP. In some cases, the first and second indicators include different control resource set pool indices or transport configuration indicator states.

[0186] Measurement report transmitter 720 may send a measurement report to one or more nodes, indicating one or more estimated Doppler frequency shift parameters associated with a set of reference signals, based on measurement constraint parameters. In some examples, measurement report transmitter 720 may send a measurement report including a first indicator and a first Doppler frequency shift estimation parameter, as well as a second indicator and a second Doppler frequency shift estimation parameter.

[0187] Figure 8A diagram of a system 800, including a device 805 supporting a measurement configuration for Doppler shift reporting, is shown according to aspects of this disclosure. Device 805 may be an example of or include components of device 505, device 605, or UE 115 as described herein. Device 805 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may communicate electronically via one or more buses (e.g., bus 845).

[0188] The communication manager 810 can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, identify measurement constraint parameters based on the measurement configuration, the measurement constraint parameters indicating a number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a set of reference signals, and send a measurement report to one or more nodes indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, according to the measurement constraint parameters.

[0189] The I / O controller 815 can manage the input and output signals of the device 805. The I / O controller 815 can also manage peripheral devices not integrated into the device 805. In some cases, the I / O controller 815 can represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 815 can use, for example... The operating system or other known operating system. In other cases, the I / O controller 815 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 815 may be implemented as part of a processor. In some cases, a user may interact with the device 805 via the I / O controller 815 or via hardware components controlled by the I / O controller 815.

[0190] As described above, transceiver 820 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 820 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 820 may also include a modem for modulating packets and providing modulated packets to the antenna for transmission, and for demodulating packets received from the antenna.

[0191] In some cases, a wireless device may include a single antenna 825. However, in other cases, the device may have more than one antenna 825, which may be able to transmit or receive multiple wireless transmissions simultaneously.

[0192] Memory 830 may include RAM and ROM. Memory 830 may store computer-readable, computer-executable code 835, including instructions that, when executed, cause a processor to perform the various functions described herein. In some cases, among other things, memory 830 may contain a BIOS that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0193] Processor 840 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof). In some cases, processor 840 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 840. Processor 840 may be configured to execute computer-readable instructions stored in memory (e.g., memory 830) to cause device 805 to perform various functions (e.g., functions or tasks supporting measurement configurations for Doppler shift reporting).

[0194] Code 835 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 835 may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, code 835 may not be directly executable by processor 840, but may enable a computer (e.g., when compiled and executed) to perform the functions described herein.

[0195] Figure 9 A block diagram 900 of a device 905 supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown. Device 905 may be an example of an aspect of base station 105 as described herein. Device 905 may include a receiver 910, a communication manager 915, and a transmitter 920. Device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0196] Receiver 910 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to measurement configurations for Doppler shift reporting). This information can be transmitted to other components of device 905. Receiver 910 can serve as a reference. Figure 12Examples of various aspects of the transceiver 1220 are described. The receiver 910 can use a single antenna or an array of antennas.

[0197] Communication manager 915 can identify measurement limiting parameters that instruct a user equipment (UE) to perform measurements thereon to estimate the number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a set of reference signals; send a measurement configuration message to the UE including the measurement limiting parameters for estimating the one or more Doppler frequency shift parameters; and receive from the UE a measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement limiting parameters. Communication manager 915 may be an example of an aspect of communication manager 1210 described herein.

[0198] The communication manager 915 or its sub-components may be implemented in hardware, processor-executable code (e.g., software or firmware), or any combination thereof. If implemented in processor-executable code, the functionality of the communication manager 915 or its sub-components may be performed by a general-purpose processor, DSP, application-specific integrated circuit (ASIC), FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

[0199] The communication manager 915 or its subcomponents may be physically located in various locations, including distributed such that some functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 915 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 915 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof.

[0200] Transmitter 920 can transmit signals generated by other components of device 905. In some examples, transmitter 920 can be co-located with receiver 910 in a transceiver module. For example, transmitter 920 can be a reference... Figure 12 Examples of various aspects of the transceiver 1220 are described. The transmitter 920 can use a single antenna or an array of antennas.

[0201] Figure 10A block diagram 1000 of a device 1005 supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown. Device 1005 may be an example of an aspect of device 905 or base station 105 as described herein. Device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1035. Device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0202] Receiver 1010 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to measurement configurations for Doppler shift reporting). This information can be transmitted to other components of device 1005. Receiver 1010 can serve as a reference. Figure 12 Examples of various aspects of the transceiver 1220 are described. The receiver 1010 can use a single antenna or an array of antennas.

[0203] Communication manager 1015 may be an example of an aspect of communication manager 915 described herein. Communication manager 1015 may include measurement limit identification component 1020, measurement configuration transmitter 1025, and measurement report receiver 1030. Communication manager 1015 may be an example of an aspect of communication manager 1210 described herein.

[0204] The measurement limitation identification component 1020 can identify measurement limitation parameters that indicate that the UE is configured to perform measurements thereon to estimate the number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a set of reference signals.

[0205] The measurement configuration transmitter 1025 can send a measurement configuration message to the UE, which includes measurement limiting parameters for estimating one or more Doppler frequency shift parameters.

[0206] The measurement report receiver 1030 can receive from the UE a measurement report indicating one or more estimated Doppler frequency shift parameters associated with a set of reference signals, based on measurement limitation parameters.

[0207] Transmitter 1035 can transmit signals generated by other components of device 1005. In some examples, transmitter 1035 may be co-located with receiver 1010 in a transceiver module. For example, transmitter 1035 may be a reference... Figure 12 Examples of various aspects of the transceiver 1220 are described. The transmitter 1035 can use a single antenna or an array of antennas.

[0208] Figure 11 A block diagram 1100 of a communication manager 1105 supporting a measurement configuration for Doppler shift reporting, according to aspects of this disclosure, is shown. The communication manager 1105 may be an example of aspects of the communication manager 915, communication manager 1015, or communication manager 1210 described herein. The communication manager 1105 may include a measurement limit identification component 1110, a measurement configuration transmitter 1115, a measurement report receiver 1120, a measurement accuracy component 1125, a duration indication component 1130, a collision identification component 1135, and a priority ordering component 1140. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0209] The measurement limitation identification component 1110 can identify measurement limitation parameters that indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each duration of the number of durations comprises a set of reference signals. In some cases, the measurement limitation parameters indicate that the UE is configured to perform measurements on one or more time slots to estimate one or more Doppler frequency shift parameters.

[0210] Measurement accuracy component 1125 can identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters, wherein the measurement accuracy is based on a measurement constraint parameter. In some examples, measurement accuracy component 1125 can determine a measurement constraint parameter that indicates the number of durations, wherein the measurement accuracy is based on the number of durations. In some examples, measurement accuracy component 1125 can identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters based on the transmission timing structure of a set of reference signals. In some examples, measurement accuracy component 1125 can identify the measurement accuracy used to estimate one or more Doppler frequency shift parameters based on the type of reference signal associated with the set of reference signals.

[0211] The duration indication component 1130 can determine the number of durations, including a single duration corresponding to a group of individual configurations of the reference signal set, wherein the measurement report is based on measurements of one or more Doppler frequency shift parameters associated with a group of individual configurations of the reference signal set.

[0212] In some examples, determining the number of durations includes a set of multiple durations corresponding to a set of configurations of a set of reference signals, wherein the measurement report includes an estimated Doppler shift value based on the average measurement over each duration in the set of multiple durations. In some cases, the number of durations corresponds to the allocation time for monitoring a set of configurations of reference signals. In some cases, the number of durations includes one or more time slots.

[0213] The collision identification component 1135 can identify temporal overlap between a first channel state information report and a second channel state information report, including a measurement report. The priority ranking component 1140 can send an indication of prioritization of the first and second channel state information reports based on their composition. In some cases, the composition includes at least one of beam reporting information, Doppler reporting information, or channel quality information reports. In some cases, priority ranking can also be based on a reference signal identifier, control resource set identifier, or quasi-cooperative positioning information identifier associated with the measurement report.

[0214] The measurement configuration transmitter 1115 can send a measurement configuration message to the UE, which includes measurement limiting parameters for estimating one or more Doppler frequency shift parameters.

[0215] The measurement report receiver 1120 can receive from the UE a measurement report indicating one or more estimated Doppler frequency shift parameters associated with a set of reference signals, based on measurement limitation parameters.

[0216] Figure 12 A diagram of a system 1200, including a device 1205 supporting a measurement configuration for Doppler shift reporting, is shown according to aspects of this disclosure. Device 1205 may be an example of or include components of device 905, device 1005, or base station 105 as described herein. Device 1205 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1210, a network communication manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communication manager 1245. These components may communicate electronically via one or more buses (e.g., bus 1250).

[0217] The communication manager 1210 can identify measurement limiting parameters that indicate that the user equipment (UE) is configured to perform measurements thereon to estimate the number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations includes a set of reference signals, send a measurement configuration message to the UE including the measurement limiting parameters for estimating one or more Doppler frequency shift parameters, and receive a measurement report from the UE indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement limiting parameters.

[0218] The network communication manager 1215 can manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1215 can manage the transmission of data communication by client devices (such as one or more UEs 115).

[0219] As described above, transceiver 1220 can communicate bidirectionally via one or more antennas, wired or wireless links. For example, transceiver 1220 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 1220 may also include a modem for modulating packets and providing modulated packets to the antenna for transmission, and for demodulating packets received from the antenna.

[0220] In some cases, a wireless device may include a single antenna 1225. However, in other cases, the device may have more than one antenna 1225, which may be able to transmit or receive multiple wireless transmissions simultaneously.

[0221] Memory 1230 may include RAM, ROM, or a combination thereof. Memory 1230 may store computer-readable code 1235, including instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform the various functions described herein. In some cases, among other things, memory 1230 may contain a BIOS that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0222] Processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any combination thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks supporting measurement configurations for Doppler shift reporting).

[0223] Inter-site communication manager 1245 can manage communication with other base stations 105 and may include a controller or scheduler for cooperating with other base stations 105 to control communication with UE 115. For example, inter-site communication manager 1245 can coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, inter-site communication manager 1245 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.

[0224] Code 1235 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 1235 may be stored in a non-transitory computer-readable medium such as system memory or other types of memory. In some cases, code 1235 may not be directly executable by processor 1240, but may enable a computer (e.g., when compiled and executed) to perform the functions described herein.

[0225] Figure 13 A flowchart illustrating a method 1300 for supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown. As described herein, operation of method 1300 can be implemented by UE 115 or its components. For example, operation of method 1300 can be provided by reference to... Figures 5 to 8 The communication manager described herein is used for execution. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the functions described below. Alternatively, the UE can perform aspects of the functions described below using dedicated hardware.

[0226] At 1305, the UE can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes. Operation of 1305 can be performed according to the methods described herein. In some examples, some aspects of the operation of 1305 may be derived from, as in the reference... Figures 5 to 8 The described measurement configuration is performed by the receiver.

[0227] At 1310, the UE can identify measurement constraint parameters based on a measurement configuration. These parameters indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of these durations comprises a set of reference signals. Operation of 1310 can be performed according to the methods described herein. In some examples, aspects of the operation of 1310 may be derived from, for example, reference signals. Figures 5 to 8 The described measurement limit identification component is used to perform this.

[0228] At point 1315, the UE can send a measurement report to one or more nodes, indicating one or more estimated Doppler frequency shift parameters associated with a reference signal set, based on measurement constraint parameters. Operation at point 1315 can be performed according to the methods described herein. In some examples, aspects of operation at point 1315 may be derived from, as in the reference... Figures 5 to 8 The described measurement report is executed by the transmitter.

[0229] Figure 14 A flowchart illustrating a method 1400 for supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown. As described herein, operation of method 1400 can be implemented by UE 115 or its components. For example, operation of method 1400 can be achieved by referring to... Figures 5 to 8 The communication manager described herein is used for execution. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the functions described below. Alternatively, the UE can perform aspects of the functions described below using dedicated hardware.

[0230] At 1405, the UE can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes. Operation at 1405 can be performed according to the methods described herein. In some examples, aspects of the operation at 1405 may be derived from, as in the reference... Figures 5 to 8 The described measurement configuration is performed by the receiver.

[0231] At 1410, the UE can identify measurement constraint parameters based on a measurement configuration. These parameters indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of these durations comprises a set of reference signals. Operation 1410 can be performed according to the methods described herein. In some examples, aspects of operation 1410 may be determined by, for example, reference signals. Figures 5 to 8 The described measurement limit identification component is used to perform this.

[0232] At 1415, the UE can determine that the duration of the quantity includes a single duration corresponding to a group of single configurations of the reference signal set. Operation 1415 can be performed according to the methods described herein. In some examples, aspects of operation 1415 may be determined by, as in the reference... Figures 5 to 8 The described duration instructs the component to perform.

[0233] At 1420, the UE can determine one or more estimated Doppler shift parameters based on measurements over a single duration of the Doppler shift associated with a single configuration group of the reference signal set. Operation at 1420 can be performed according to the methods described herein. In some examples, aspects of the operation at 1420 may be derived from, as in the reference... Figures 5 to 8 The Doppler frequency shift measurement component described herein is used to perform this measurement.

[0234] At point 1425, the UE can send a measurement report to one or more nodes, indicating one or more estimated Doppler frequency shift parameters associated with a reference signal set, based on measurement constraint parameters. Operation at point 1425 can be performed according to the methods described herein. In some examples, aspects of operation at point 1425 may be derived from, as in the reference... Figures 5 to 8 The described measurement report is executed by the transmitter.

[0235] Figure 15 A flowchart illustrating a method 1500 for supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown. As described herein, operation of method 1500 can be implemented by UE 115 or its components. For example, operation of method 1500 can be achieved by referring to... Figures 5 to 8 The communication manager described herein is used for execution. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the functions described below. Alternatively, the UE can perform aspects of the functions described below using dedicated hardware.

[0236] At 1505, the UE can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes. Operation of 1505 can be performed according to the methods described herein. In some examples, aspects of the operation of 1505 may be determined by, as in the reference... Figures 5 to 8 The described measurement configuration is performed by the receiver.

[0237] At 1510, the UE can identify measurement constraint parameters based on a measurement configuration. These parameters indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each duration comprises a set of reference signals. Operation of 1510 can be performed according to the methods described herein. In some examples, aspects of operation of 1510 may be determined by, for example, reference signals. Figures 5 to 8 The described measurement limit identification component is used to perform this.

[0238] At 1515, the UE can determine that the duration of the quantity includes a set of multiple durations corresponding to a set of groups configured with a set of reference signals. Operation at 1515 can be performed according to the methods described herein. In some examples, aspects of operation at 1515 may be determined by, as in the reference... Figures 5 to 8 The described duration instructs the component to perform.

[0239] At 1520, the UE can estimate the Doppler frequency shift value based on measurements at each duration in a set of multiple durations. Operation at 1520 can be performed according to the methods described herein. In some examples, aspects of operation at 1520 may be derived from, as referenced... Figures 5 to 8 The Doppler frequency shift measurement component described herein is used to perform this measurement.

[0240] At 1525, the UE can determine one or more estimated Doppler shift parameters based on averaging Doppler shift values ​​associated with a set of multiple durations. The operation at 1525 can be performed according to the methods described herein. In some examples, aspects of the operation at 1525 may be derived from, as referenced... Figures 5 to 8 The Doppler frequency shift measurement component described herein is used to perform this measurement.

[0241] At 1530, the UE can send a measurement report to one or more nodes, indicating one or more estimated Doppler frequency shift parameters associated with a reference signal set, based on measurement constraint parameters. Operation at 1530 can be performed according to the methods described herein. In some examples, aspects of operation at 1530 may be determined by, as in the reference... Figures 5 to 8 The described measurement report is executed by the transmitter.

[0242] Figure 16 A flowchart illustrating a method 1600 for a measurement configuration supporting Doppler frequency shift reporting, according to aspects of this disclosure, is shown. As described herein, operation of method 1600 can be implemented by UE 115 or its components. For example, operation of method 1600 can be provided by reference to... Figures 5 to 8The communication manager described herein is used for execution. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the functions described below. Alternatively, the UE can perform aspects of the functions described below using dedicated hardware.

[0243] At 1605, the UE can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes. Operation at 1605 can be performed according to the methods described herein. In some examples, aspects of operation at 1605 may be determined by, as in the reference... Figures 5 to 8 The described measurement configuration is performed by the receiver.

[0244] At 1610, the UE can identify measurement constraint parameters based on a measurement configuration. These parameters indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of these durations comprises a set of reference signals. Operation of 1610 can be performed according to the methods described herein. In some examples, aspects of operation of 1610 may be determined by, as in reference... Figures 5 to 8 The described measurement limit identification component is used to perform this.

[0245] At 1615, the UE can identify the range of resolvable Doppler frequency shift values. Operation at 1615 can be performed according to the methods described herein. In some examples, aspects of operation at 1615 may be derived from, as referenced... Figures 5 to 8 The described Doppler frequency shift resolution component is used to perform this.

[0246] At 1620, the UE can estimate one or more Doppler frequency shift parameters based on the range of resolvable Doppler frequency shift values. Operation at 1620 can be performed according to the methods described herein. In some examples, aspects of operation at 1620 may be derived from, as referenced... Figures 5 to 8 The Doppler frequency shift measurement component described herein is used to perform this measurement.

[0247] At 1625, the UE can determine the granularity for reporting one or more Doppler frequency shift parameters based on the number of durations on which the UE is configured to estimate one or more Doppler frequency shift parameters. The operation at 1625 can be performed according to the methods described herein. In some examples, aspects of the operation at 1625 may be derived from, as referenced... Figures 5 to 8 The described reporting granularity component is used to perform this.

[0248] At 1630, the UE can send a measurement report to one or more nodes, indicating one or more estimated Doppler frequency shift parameters associated with a reference signal set, based on measurement constraint parameters. Operation at 1630 can be performed according to the methods described herein. In some examples, aspects of operation at 1630 may be determined by, as in the reference... Figures 5 to 8 The described measurement report is executed by the transmitter.

[0249] Figure 17 A flowchart illustrating a method 1700 for a measurement configuration supporting Doppler frequency shift reporting, according to aspects of this disclosure, is shown. As described herein, operation of method 1700 can be implemented by UE 115 or its components. For example, operation of method 1700 can be achieved by reference to... Figures 5 to 8 The communication manager described herein is used for execution. In some examples, the UE can execute a set of instructions to control the functional units of the UE to perform the functions described below. Alternatively, the UE can perform aspects of the functions described below using dedicated hardware.

[0250] At 1705, the UE can receive a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes. Operation of 1705 can be performed according to the methods described herein. In some examples, aspects of operation of 1705 may be determined by, as in the reference... Figures 5 to 8 The described measurement configuration is performed by the receiver.

[0251] At 1710, the UE can identify measurement constraint parameters based on a measurement configuration. These parameters indicate the number of durations on which the UE is configured to perform measurements to estimate one or more Doppler frequency shift parameters, wherein each of these durations comprises a set of reference signals. Operation of 1710 can be performed according to the methods described herein. In some examples, aspects of operation of 1710 may be determined by, for example, reference signals. Figures 5 to 8 The described measurement limit identification component is used to perform this.

[0252] At point 1715, the UE can send a measurement report to one or more nodes, indicating one or more estimated Doppler frequency shift parameters associated with a reference signal set, based on measurement constraint parameters. Operation at point 1715 can be performed according to the methods described herein. In some examples, aspects of operation at point 1715 may be determined by, as in the reference... Figures 5 to 8 The described measurement report is executed by the transmitter.

[0253] At 1720, the UE can identify the temporal overlap between the first channel state information report and the second channel state information report, including the measurement report. Operation at 1720 can be performed according to the methods described herein. In some examples, aspects of operation at 1720 may be derived from, as referenced... Figures 5 to 8 The described conflict identification component is used to perform this.

[0254] At point 1725, the UE can determine the priority order of the first channel state information report and the second channel state information report based on the composition of the first channel state information report and the second channel state information report. The operation at point 1725 can be performed according to the method described herein. In some examples, aspects of the operation at point 1725 may be as described in the references... Figures 5 to 8 The described priority sorting component is used for execution.

[0255] Figure 18 A flowchart illustrating a method 1800 for supporting a measurement configuration for Doppler frequency shift reporting, according to aspects of this disclosure, is shown. As described herein, operation of method 1800 can be implemented by base station 105 or its components. For example, operation of method 1800 can be provided by reference to... Figures 9 to 12 The communication manager described herein is used for execution. In some examples, the base station may execute a set of instructions to control the functional units of the base station to perform the functions described below. Additionally or alternatively, the base station may perform aspects of the functions described below using dedicated hardware.

[0256] At 1805, the base station can identify measurement constraint parameters that instruct the UE to perform measurements thereon to estimate the number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a set of reference signals. Operation at 1805 can be performed according to the methods described herein. In some examples, aspects of operation at 1805 may be determined by, as in reference... Figures 9 to 12 The described measurement limit identification component is used to perform this.

[0257] At point 1810, the base station may send a measurement configuration message to the UE including measurement constraint parameters for estimating one or more Doppler frequency shift parameters. The operation at point 1810 can be performed according to the methods described herein. In some examples, aspects of the operation at point 1810 may be derived from references... Figures 9 to 12 The described measurement configuration is used to perform the transmitter.

[0258] At point 1815, the base station can receive from the UE a measurement report indicating one or more estimated Doppler frequency shift parameters associated with a set of reference signals, based on measurement constraint parameters. Operation at point 1815 can be performed according to the methods described herein. In some examples, aspects of operation at point 1815 may be determined by, as referenced... Figures 9 to 12 The described measurement report receiver is used to perform the operation.

[0259] The following provides an overview of aspects of this disclosure:

[0260] Aspect 1: A method for wireless communication at a UE, comprising: receiving a measurement configuration for estimating one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes; identifying a measurement constraint parameter based on the measurement configuration, the measurement constraint parameter indicating a number of durations on which the UE is configured to perform measurements to estimate the one or more Doppler frequency shift parameters, wherein each of the number of durations comprises a plurality of the set of reference signals; and transmitting a measurement report to the one or more nodes according to the measurement constraint parameter, indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals.

[0261] Aspect 2: The method according to aspect 1 further includes: identifying a measurement accuracy for estimating the one or more Doppler frequency shift parameters, wherein the measurement accuracy is at least partially based on the measurement constraint parameters.

[0262] Aspect 3: According to the method of aspect 2, identifying the measurement accuracy further includes: determining the number of durations indicated by the measurement limitation parameter, wherein the measurement accuracy is based at least in part on whether the number of durations includes more than a single duration.

[0263] Aspect 4: The method according to any one of aspects 1 to 3 further includes: identifying the measurement accuracy for estimating the one or more Doppler frequency shift parameters based at least in part on the transmission timing structure of the reference signal set.

[0264] Aspect 5: The method according to any one of aspects 1 to 4 further includes: identifying the measurement accuracy for estimating the one or more Doppler frequency shift parameters based at least in part on the reference signal type associated with the reference signal set.

[0265] Aspect 6: The method according to any one of aspects 1 to 5 further comprises: determining that the duration of the number includes a single duration corresponding to a group of single configurations of the reference signal set; and determining one or more estimated Doppler shift parameters based at least in part on measurements of the single duration of Doppler shift associated with the group of single configurations of the reference signal set.

[0266] Aspect 7: The method according to any one of aspects 1 to 6 further comprises: determining that the number of durations includes a set of multiple durations corresponding to a plurality of configuration groups of the reference signal set; estimating a Doppler frequency shift value based at least in part on measurements at each of the multiple durations; and determining one or more estimated Doppler frequency shift parameters based at least in part on averaging the Doppler frequency shift values ​​associated with the set of multiple durations.

[0267] Aspect 8: The method according to any of aspects 1 to 7, wherein the measurement limiting parameter indicates that the UE is configured to perform measurements thereon to estimate one or more time slots of the one or more Doppler frequency shift parameters.

[0268] Aspect 9: The method according to any one of aspects 1 to 8 further includes: identifying a range of resolvable Doppler frequency shift values; and estimating the one or more Doppler frequency shift parameters based on the range of resolvable Doppler frequency shift values.

[0269] Aspect 10: According to the method of aspect 9, identifying the range of resolvable Doppler frequency shift values ​​further includes identifying time-domain gaps between consecutive samples of the reference signal set.

[0270] Aspect 11: The method according to any one of aspects 9 to 10, wherein identifying the range of resolvable Doppler frequency shift values ​​further includes: receiving a downlink message indicating the range of resolvable Doppler frequency shift values.

[0271] Aspect 12: The method according to any one of aspects 9 to 11 further includes: generating a measurement report including a first indication of one or more estimated Doppler frequency shift parameters and a second indication of the range of resolvable Doppler frequency shift values.

[0272] Aspect 13: The method according to any one of aspects 9 to 12 further includes: identifying the number of bits allocated for reporting the one or more Doppler frequency shift parameters; and determining the granularity for reporting the one or more Doppler frequency shift parameters based at least in part on the range of resolvable Doppler frequency shift values ​​and the number of bits.

[0273] Aspect 14: The method according to any one of aspects 9 to 13 further comprises: determining the granularity for reporting the one or more Doppler frequency shift parameters based at least in part on the number of durations on which the UE is configured to estimate the one or more Doppler frequency shift parameters.

[0274] Aspect 15: The method according to any of aspects 1 to 14, wherein sending the measurement report further includes: identifying a set of frequency bins associated with one or more Doppler frequency shift values; identifying a numerical value representing the estimated one or more Doppler frequency shift parameters; and assigning the estimated one or more Doppler frequency shift parameters to frequency bins in the set of frequency bins based at least in part on the numerical value.

[0275] Aspect 16: The method according to aspect 15 further includes: determining that the set of frequency bins includes a first frequency bin associated with a Doppler shift value less than a threshold and a second frequency bin associated with a Doppler shift value exceeding the threshold.

[0276] Aspect 17: The method according to any of aspects 15 to 16, wherein the estimated one or more Doppler frequency shift parameters are quantized at least in part based on the numerical values.

[0277] Aspect 18: The method according to any of aspects 1 to 17, wherein sending the measurement report further includes: generating bits indicating that one or more estimated Doppler frequency shift parameters have positive or negative values.

[0278] Aspect 19: The method according to any one of aspects 1 to 18 further includes: identifying temporal overlap between a first channel state information report and a second channel state information report including the measurement report; and determining a priority order of the first channel state information report and the second channel state information report based at least in part on the composition of the first channel state information report and the composition of the second channel state information report.

[0279] Aspect 20: The method according to aspect 19, wherein the components include at least one of beam reporting information, Doppler reporting information, or channel quality information report.

[0280] Aspect 21: The method according to any of aspects 19 to 20, wherein the priority ordering is further based at least in part on a reference signal identifier, control resource set identifier, or quasi-cooperative positioning information identifier associated with the measurement report.

[0281] Aspect 22: The method according to any of aspects 1 to 21, wherein the duration of the quantity corresponds to the allocation time for monitoring a set of configured reference signals.

[0282] Aspect 23: The method according to any of aspects 1 to 22, wherein the duration of the quantity comprises one or more time slots.

[0283] Aspect 24: The method according to any of aspects 1 to 23, wherein sending the measurement report to the one or more nodes further comprises: generating a first indicator associated with a first Doppler frequency shift estimation parameter for a first transmit-receive point (TRP); generating a second indicator associated with a second Doppler frequency shift estimation parameter for a second TRP; and sending the measurement report including the first indicator and the first Doppler frequency shift estimation parameter, and the second indicator and the second Doppler frequency shift estimation parameter.

[0284] Aspect 25: According to the method of aspect 24, wherein the first indicator and the second indicator include different control resource set pool indexes or transport configuration indicator states.

[0285] Aspect 26: A method for wireless communication at a base station, comprising: identifying a measurement constraint parameter indicating that a user equipment (UE) is configured to perform measurements thereon to estimate a number of durations of one or more Doppler frequency shift parameters associated with a set of reference signals transmitted from one or more nodes, wherein each of the number of durations comprises a plurality of the reference signal sets; sending to the UE a measurement configuration message including the measurement constraint parameter for estimating the one or more Doppler frequency shift parameters; and receiving from the UE a measurement report indicating the estimated one or more Doppler frequency shift parameters associated with the set of reference signals, based on the measurement constraint parameter.

[0286] Aspect 27: The method according to aspect 26 further includes: identifying a measurement accuracy for estimating the one or more Doppler frequency shift parameters, wherein the measurement accuracy is at least partially based on the measurement constraint parameters.

[0287] Aspect 28: According to the method of aspect 27, identifying the measurement accuracy further includes: determining the number of durations indicated by the measurement limitation parameter, wherein the measurement accuracy is based at least in part on whether the number of durations includes more than a single duration.

[0288] Aspect 29: The method according to any of aspects 26 to 28 further includes: identifying the measurement accuracy for estimating the one or more Doppler frequency shift parameters based at least in part on the transmission timing structure of the reference signal set.

[0289] Aspect 30: The method according to any of aspects 26 to 29 further includes: identifying the measurement accuracy for estimating the one or more Doppler frequency shift parameters based at least in part on the reference signal type associated with the set of reference signals.

[0290] Aspect 31: The method according to any of aspects 26 to 30 further comprises: determining that the duration of the quantity includes a single duration corresponding to a group of single configurations of the reference signal set, wherein the measurement report is based at least in part on the single duration of the one or more Doppler frequency shift parameters associated with the group of single configurations of the reference signal set.

[0291] Aspect 32: The method according to any of aspects 26 to 31 further includes: determining that the number of durations comprises a set of multiple durations corresponding to a plurality of configuration groups of the reference signal set, wherein the measurement report includes a Doppler frequency shift value estimated at least in part based on an average measurement over each of the plurality of durations.

[0292] Aspect 33: The method according to any of aspects 26 to 32, wherein the measurement limiting parameter indicates that the UE is configured to perform measurements thereon to estimate one or more time slots of the one or more Doppler frequency shift parameters.

[0293] Aspect 34: The method according to any of aspects 26 to 33 further includes: identifying temporal overlap between a first channel state information report and a second channel state information report including the measurement report; and sending an indication of priority ordering of the first channel state information report and the second channel state information report based at least in part on the composition of the first channel state information report and the composition of the second channel state information report.

[0294] Aspect 35: The method according to aspect 34, wherein the components include at least one of beam reporting information, Doppler reporting information, or channel quality information report.

[0295] Aspect 36: The method according to any of aspects 34 to 35, wherein the priority ranking is further based at least in part on a reference signal identifier, control resource set identifier, or quasi-cooperative positioning information identifier associated with the measurement report.

[0296] Aspect 37: The method according to any of aspects 26 to 36, wherein the duration of the quantity corresponds to the allocation time for monitoring a set of configuration reference signals.

[0297] Aspect 38: The method according to any of aspects 26 to 37, wherein the duration of the quantity comprises one or more time slots.

[0298] Aspect 39: An apparatus for wireless communication at a UE, 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 the methods described in any of aspects 1 to 25.

[0299] Aspect 40: An apparatus for wireless communication at a UE, comprising at least one unit for performing the method described in any of aspects 1 to 25.

[0300] Aspect 41: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform the methods described in any of aspects 1 to 25.

[0301] Aspect 42: An apparatus for wireless communication at a base station, comprising a processor, a memory coupled to the processor, and instructions stored in the memory and executable by the processor to cause the apparatus to perform the methods of any of aspects 26 to 38.

[0302] Aspect 43: An apparatus for wireless communication at a base station, comprising at least one unit for performing the method described in any of aspects 26 to 38.

[0303] Aspect 44: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code including instructions executable by a processor to perform the methods described in any of aspects 26 to 38.

[0304] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more of these methods can be combined.

[0305] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein can be applied beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0306] The information and signals described herein can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout this specification can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.

[0307] The various illustrative blocks and components described herein can be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor; however, alternatively, it may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a digital signal processor (DSP) and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such architecture).

[0308] The functions described herein can be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented by software executed by a processor, these functions can be stored as one or more instructions or code on or transmitted over a computer-readable medium. Other examples and implementations are within the scope of this application and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features implementing the functions can also be physically placed in various locations, including portions distributed such that functions are implemented at different physical locations.

[0309] Computer-readable media includes both non-transitory computer storage media and communication media, wherein the communication media includes any medium that facilitates the transfer of a computer program from one location to another. Non-transitory storage media can be any available medium that can be accessed by a general-purpose computer or a special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, disc-on-a-CD (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired units of program code in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Furthermore, any connection can be appropriately referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used herein, disks and discs include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks typically copy data magnetically, while discs use lasers to copy data optically. The combinations above should also be included within the scope of computer-readable media.

[0310] As used herein, the word "or" as used in the claims, as in the list of entries (e.g., a list of entries preceded by phrases such as "at least one of" or "one or more of"), indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A, or B, or C, or AB, or AC, or BC, or ABC (i.e., A and B and C). Furthermore, as used herein, the phrase "based on" should not be construed as a reference to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" will be interpreted in the same manner as the phrase "at least partially based on".

[0311] In the accompanying drawings, similar components or features may have the same reference numerals. Additionally, components of the same type may be distinguished by a dash followed by a second reference numeral to differentiate between similar components. If only the first reference numeral is used in this specification, the description applies to any similar component having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.

[0312] The specification described herein, in conjunction with the accompanying drawings, describes exemplary configurations and does not represent all examples that can be implemented or that fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration," and not "preferred" or "advantageous" relative to other examples. Specific details are included to provide an understanding of the described techniques. However, these techniques can be implemented without using these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concept of the described examples.

[0313] The description herein is provided to enable those skilled in the art to implement or use the disclosed content. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but is consistent with the broadest scope of the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: receiving a measurement configuration message associated with a measurement configuration for estimating one or more Doppler shift parameters associated with a set of reference signals transmitted from one or more transmission reception points (TRPs) associated with a base station; identifying, based on the measurement configuration, a measurement restriction parameter indicating a quantity of durations over which the UE is configured to measure to estimate the one or more Doppler shift parameters, wherein the measurement restriction parameter is based on a reference signal structure of the set of reference signals transmitted from the one or more TRPs, the reference signal structure being configured for the quantity of durations, each of the quantity of durations including a plurality of the set of reference signals; and transmitting, to the one or more TRPs, a measurement report indicating estimated one or more Doppler shift parameters associated with the set of reference signals in accordance with the measurement restriction parameter.

2. The method of claim 1, further comprising: identifying a measurement accuracy for estimating the one or more Doppler shift parameters, wherein the measurement accuracy is based at least in part on the measurement restriction parameter.

3. The method of claim 2, wherein, Identifying the measurement accuracy further comprises: determining that the measurement restriction parameter indicates a quantity of durations, wherein the measurement accuracy is based at least in part on whether the quantity of durations includes more than a single duration.

4. The method of claim 1, further comprising: identifying a measurement accuracy for estimating the one or more Doppler shift parameters based at least in part on a transmission timing structure of the set of reference signals.

5. The method of claim 1, further comprising: identifying a measurement accuracy for estimating the one or more Doppler shift parameters based at least in part on a reference signal type associated with the set of reference signals.

6. The method of claim 1, further comprising: determining that the quantity of durations includes a single duration corresponding to a single configured group of the set of reference signals; and determining estimated one or more Doppler shift parameters based at least in part on measurements over the single duration of Doppler shift associated with the single configured group of the set of reference signals.

7. The method of claim 1, further comprising: determining that the quantity of durations includes a set of multiple durations corresponding to multiple configured groups of the set of reference signals; estimating a Doppler shift value based at least in part on measurements over each duration of the set of multiple durations; and determining the estimated one or more Doppler shift parameters based at least in part on averaging Doppler shift values associated with the set of multiple durations. the measurement restriction parameter indicates one or more slots over which the UE is configured to measure to estimate the one or more Doppler shift parameters.

9. The method of claim 1, further comprising:

8. The method of claim 1, wherein, identifying a range of resolvable Doppler shift values; and determining the estimated one or more Doppler shift parameters based at least in part on whether a Doppler shift value associated with the set of reference signals is within the range of resolvable Doppler shift values. ​ ​ estimating the one or more Doppler shift parameters based at least in part on the range of resolvable Doppler shift values.

10. The method of claim 9, wherein, identifying the range of resolvable Doppler shift values further comprises: identifying a time domain gap between consecutive samples of the set of reference signals.

11. The method of claim 9, wherein, identifying the range of resolvable Doppler shift values further comprises: receiving a downlink message indicating the range of resolvable Doppler shift values.

12. The method of claim 9, further comprising: generating a measurement report including a first indication of the estimated one or more Doppler shift parameters and a second indication of the range of resolvable Doppler shift values.

13. The method of claim 9, further comprising: identifying a number of bits allocated for reporting the one or more Doppler shift parameters; and determining a granularity for reporting the one or more Doppler shift parameters based at least in part on the range of resolvable Doppler shift values and the number of bits.

14. The method of claim 9, further comprising: determining a granularity for reporting the one or more Doppler shift parameters based at least in part on a number of the durations over which the UE is configured to estimate the one or more Doppler shift parameters.

15. The method of claim 1, wherein, transmitting the measurement report further comprises: identifying a set of frequency bins associated with one or more Doppler shift values; identifying a numerical value representing the estimated one or more Doppler shift parameters; and allocating the estimated one or more Doppler shift parameters to a frequency bin of the set of frequency bins based at least in part on the numerical value, wherein a first frequency bin is associated with a Doppler shift value less than a threshold value and a second frequency bin is associated with a different Doppler shift value that exceeds the threshold value.

16. The method of claim 15, wherein, the estimated one or more Doppler shift parameters are quantized based at least in part on the numerical value.

17. The method of claim 1, wherein, transmitting the measurement report further comprises: generating a bit indicating that the estimated one or more Doppler shift parameters have a positive value or a negative value.

18. The method of claim 1, further comprising: identifying a time domain overlap between a first channel state information report and a second channel state information report including the measurement report; and determining a priority ordering of the first channel state information report and the second channel state information report based at least in part on a composition of the first channel state information report and a composition of the second channel state information report.

19. The method of claim 18, wherein, the composition includes at least one of beam report information, Doppler report information, or channel quality information report.

20. The method of claim 18, wherein, the priority ordering is further based at least in part on a reference signal identifier, a control resource set identifier, or a quasi co-location information identifier associated with the measurement report.

21. The method of claim 1, wherein, the number of durations corresponds to one or more slots for monitoring a set of configured reference signals.

22. The method of claim 1, wherein, transmitting the measurement report to the one or more TRPs further comprises: generating a first indicator associated with a first Doppler shift estimation parameter for a first TRP; generating a second indicator associated with a second Doppler shift estimation parameter for a second TRP; and transmitting the measurement report including the first indicator and the first Doppler shift estimation parameter and the second indicator and the second Doppler shift estimation parameter.

23. The method of claim 22, wherein, the first indicator and the second indicator include different control resource set pool indexes or transmission configuration indicator states.

24. A method for wireless communications at a base station, comprising: identifying a measurement restriction parameter indicating a number of durations over which a user equipment (UE) is configured to measure to estimate one or more Doppler shift parameters associated with a set of reference signals transmitted from one or more transmission reception points (TRPs) associated with the base station, wherein the measurement restriction parameter is based on a reference signal structure of the set of reference signals transmitted from the one or more TRPs, the reference signal structure configured for the number of durations, each of the number of durations including a plurality of the set of reference signals; transmitting, to the UE, a measurement configuration message associated with a measurement configuration for estimating the one or more Doppler shift parameters, the measurement configuration message including the measurement restriction parameter for estimating the one or more Doppler shift parameters; and receiving, from the UE, a measurement report indicating estimated one or more Doppler shift parameters associated with the set of reference signals in accordance with the measurement restriction parameter.

25. The method of claim 24, further comprising: identifying a measurement accuracy for estimating the one or more Doppler shift parameters, wherein the measurement accuracy is based at least in part on whether the measurement restriction parameter includes more than a single duration.

26. The method of claim 24, further comprising: identifying a measurement accuracy for estimating the one or more Doppler shift parameters based at least in part on a transmission timing structure of the set of reference signals or a reference signal type associated with the set of reference signals.

27. The method of claim 24, further comprising: determining that the number of durations includes a single duration corresponding to a single configured group of the set of reference signals, wherein the measurement report is based at least in part on measurements over the single duration of the one or more Doppler shift parameters associated with the single configured group of the set of reference signals.

28. The method of claim 24, further comprising: determining that the number of durations includes a set of multiple durations corresponding to multiple configured groups of the set of reference signals, wherein the measurement report includes a Doppler shift value estimated based at least in part on an average measurement over each duration of the set of multiple durations.

29. An apparatus for wireless communication at a user equipment (UE), comprising: a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any of claims 1-23.

30. An apparatus for wireless communication at a base station, comprising: a processor; memory coupled with the processor; a memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of any of claims 24-28.

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