Reporting channel statistics for beam management
By reporting channel statistics sets in a wireless communication system, base stations and UEs can select beams or channels based on RSRP and channel statistics sets, solving the suboptimal selection problem caused by relying solely on RSRP in existing technologies, and improving communication success rate and spectrum efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-02-25
- Publication Date
- 2026-04-07
AI Technical Summary
In existing wireless communication systems, base stations select beams or channels based solely on the Reference Signal Received Power (RSRP), failing to consider other channel statistics or metrics, resulting in suboptimal beam or channel selection and impacting communication quality.
During beam management, base stations and user equipment (UE) report channel statistics sets, including frequency selectivity, time selectivity, frequency correlation, and time correlation. The base station selects a beam or channel based on RSRP and the channel statistics set.
It improves the communication success rate between the base station and the UE, increases the data rate and system throughput, reduces the number of retransmissions, and improves spectrum efficiency.
Smart Images

Figure CN115362637B_ABST
Abstract
Description
[0001] Cross-references
[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 011,128, entitled “REPORTING CHANNELSTATISTICS FOR BEAM MANAGEMENT”, filed April 16, 2020, and U.S. Patent Application No. 17 / 173,573, entitled “REPORTING CHANNELSTATISTICS FOR BEAM MANAGEMENT”, filed February 11, 2021, by LANDIS et al., each of which is assigned to the assignee of this application. Technical Field
[0003] The following text generally pertains to wireless communications, and in particular to reporting channel statistics used for beam management.
[0004] background
[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. 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) systems, LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ various technologies, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended 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 from multiple communication devices, which may also be referred to as User Equipment (UE).
[0006] In some wireless communication systems, base stations and UEs can communicate using one or more directional beams, and can attempt to maintain a reliable communication link between the base station and the UE based on the execution of beam management procedures.
[0007] Overview
[0008] The described technology relates to improved methods, systems, devices, and apparatuses for supporting the reporting of channel statistics used for beam management. Generally, the described technology provides enhanced beam management procedures. To maintain a reliable communication link between a base station and a UE, the UE can measure the received power of one or more Channel State Information (CSI) Reference Signals (CSI RS) or Synchronization Signal Blocks (SSBs) associated with the channel between the base station and the UE. Additionally, the UE can determine a set of channel statistics associated with the channel, such as frequency selectivity, time selectivity, frequency correlation, or time correlation, or any combination thereof. The UE can transmit a report to the base station including the measured received power and the channel statistics set. Accordingly, the base station can select one or both of a beam and a channel for communication with the UE based on the measured received power and the channel statistics set.
[0009] A method for wireless communication at a UE is described. The method may include: measuring the received power of one or more reference signals associated with a channel for a beam management procedure; determining a channel statistics set associated with the channel based on the beam management procedure; and transmitting to a base station a report including at least an indication of the received power and the channel statistics set associated with the channel.
[0010] 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. These instructions can be executed by the processor to cause the apparatus to: measure the received power of one or more reference signals associated with a channel for a beam management procedure; determine a channel statistics set associated with the channel based on the beam management procedure; and transmit to a base station a report including at least an indication of the received power and the channel statistics set associated with the channel.
[0011] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: measuring the received power of one or more reference signals associated with a channel for a beam management procedure; determining a channel statistics set associated with the channel based on the beam management procedure; and transmitting to a base station a report including at least an indication of the received power and the channel statistics set associated with the channel.
[0012] A non-transient computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to: measure the received power of one or more reference signals associated with a channel for a beam management procedure; determine a set of channel statistics associated with the channel based on the beam management procedure; and transmit to a base station a report including at least an indication of the received power and the set of channel statistics associated with the channel.
[0013] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the transmission report may include operations, features, means, or instructions for transmitting a first indication of received power in a first field of the report and a second indication of channel statistics in a second field of the report.
[0014] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the transmission report may include operations, features, means, or instructions for determining parameters based on a combination of received power and channel statistics, and transmitting a report including those parameters.
[0015] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, parameters include those based on the difference between the received power and the combined power.
[0016] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining frequency selectivity associated with a channel, wherein the channel statistics set includes frequency selectivity.
[0017] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining time selectivity associated with a channel, wherein the channel statistics set includes time selectivity.
[0018] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for determining one or both of frequency correlation and time correlation associated with a channel, wherein the channel statistics set includes one or both of frequency correlation and time correlation.
[0019] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for identifying a configuration for transmitting a report that includes at least an indication of received power and channel statistics, wherein the determination of the channel statistics may be based on the configuration.
[0020] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, this configuration may be based on the capabilities of the UE.
[0021] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, devices or instructions for receiving instructions on configuration from a base station.
[0022] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the configuration includes the pre-configuration of the UE.
[0023] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, devices or instructions for performing channel equalization procedures based on channel statistics sets.
[0024] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for receiving an instruction for a selected beam from a base station based on an indication of received power and channel statistics, and for communicating with the base station using the selected beam.
[0025] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for receiving an indication of a second channel from a base station based on an indication of received power and channel statistics, and for using the second channel to communicate with the base station.
[0026] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the report includes several bits based on received power and channel statistics.
[0027] A method for wireless communication at a base station is described. The method may include: transmitting to a UE one or more reference signals for a beam management procedure, the one or more reference signals being associated with a first channel; receiving from the UE, based on the beam management procedure, a report including at least an indication of received power associated with the one or more reference signals and a channel statistics set associated with the first channel; and selecting one or both of a beam and a second channel for communication with the UE based on the indication of the received power and the channel statistics set.
[0028] 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. These instructions can be executed by the processor to cause the apparatus to: transmit to a UE one or more reference signals for a beam management procedure, the one or more reference signals being associated with a first channel; receive from the UE, based on the beam management procedure, a report including at least an indication of received power associated with the one or more reference signals and a channel statistics set associated with the first channel; and select one or both of a beam and a second channel for communication with the UE based on the indication of the received power and the channel statistics set.
[0029] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting to a UE one or more reference signals for a beam management procedure, the one or more reference signals being associated with a first channel; receiving from the UE, based on the beam management procedure, a report including at least an indication of received power associated with the one or more reference signals and a channel statistics set associated with the first channel; and selecting one or both of a beam and a second channel for communication with the UE based on the indication of the received power and the channel statistics set.
[0030] A non-transient computer-readable medium is described, storing code for wireless communication at a base station. The code may include instructions executable by a processor to: transmit to a UE one or more reference signals for a beam management procedure, the one or more reference signals being associated with a first channel; receive from the UE, based on the beam management procedure, a report including at least an indication of received power associated with the one or more reference signals and a channel statistics set associated with the first channel; and select one or both of a beam and a second channel for communication with the UE based on the indication of the received power and the channel statistics set.
[0031] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a report may include operations, features, means, or instructions for receiving a first indication of received power in a first field of the report and a second indication of channel statistics in a second field of the report.
[0032] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, receiving a report may include operations, features, means, or instructions for receiving a report that includes parameters based on a combination of received power and channel statistics.
[0033] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, parameters include those based on the difference between the combined parameters and the indication of received power.
[0034] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the channel statistics set includes frequency selectivity associated with a first channel.
[0035] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the channel statistics set includes time selectivity associated with a first channel.
[0036] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the channel statistics set includes one or both of the frequency correlation and time correlation associated with the first channel.
[0037] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for transmitting to the UE an indication of a configuration, including at least a report of an indication of received power and channel statistics sets based on that configuration.
[0038] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for transmitting an instruction to the UE on a beam and for communicating with the UE using the beam.
[0039] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for transmitting an instruction to the UE for a second channel and for communicating with the UE using the second channel. Brief description of the attached diagram
[0041] Figure 1 Examples of wireless communication systems using channel statistics for beam management, supported by various aspects of this disclosure, are explained.
[0042] Figure 2 Examples of wireless communication systems using channel statistics for beam management, supported by various aspects of this disclosure, are explained.
[0043] Figure 3 An example of the process flow for channel statistics used in beam management, based on various supporting reports of this disclosure, is explained.
[0044] Figure 4 and 5 A diagram of a device for channel statistics used in beam management, supported by various aspects of this disclosure, is shown.
[0045] Figure 6 A diagram of a communication manager for channel statistics used in beam management, supported by various aspects of this disclosure, is shown.
[0046] Figure 7 A diagram of a system including a device for supporting the reporting of channel statistics for beam management, according to various aspects of this disclosure, is shown.
[0047] Figure 8 and 9 A diagram of a device for channel statistics used in beam management, supported by various aspects of this disclosure, is shown.
[0048] Figure 10 A diagram of a communication manager for channel statistics used in beam management, supported by various aspects of this disclosure, is shown.
[0049] Figure 11 A diagram of a system including a device for supporting the reporting of channel statistics for beam management, according to various aspects of this disclosure, is shown.
[0050] Figures 12 to 17 A flowchart illustrating a method for channel statistics used in beam management, according to supporting reports of various aspects of this disclosure, is shown.
[0051] Detailed description
[0052] In some wireless communication systems, a base station and a UE may attempt to maintain reliable communication on a communication link by using a beam or channel that provides sufficiently high signal strength for transmission between the base station and the UE. In some cases, the base station and the UE may execute several beam management procedures to facilitate the selection of an appropriate beam or channel. In such cases, the UE may receive one or more reference signals (such as CSI-RS or SSB) from the base station and measure the received power (such as Reference Signal Received Power (RSRP)) associated with those one or more reference signals. The UE may transmit a report including the measured RSRP to the base station, which can use the RSRP measurement to select a beam or channel for communication with the UE. For example, each of the one or more reference signals transmitted by the base station may correspond to a beam or channel, and the base station may select the beam or channel corresponding to the reference signal associated with the highest measured RSRP.
[0053] However, in some cases, the quality or performance of a beam or channel may depend on other statistics or metrics besides the measured RSRP of the corresponding reference signal. Specifically, different beams or channels may be associated with the same RSRP, but based on other statistics or metrics, they may have different channel qualities and different channel performance. However, in some situations, a base station may select a beam or channel solely or exclusively based on RSRP (e.g., without considering other statistics or metrics associated with the beam or channel), which can lead to suboptimal beam or channel selection because some beams or channels may have high RSRP but poor overall channel performance based on other channel-related statistics or metrics. Thus, some beam management techniques may be flawed by excluding other statistics or metrics when configuring wireless communication beams or channels and relying solely on RSRP measurements.
[0054] In some implementations of this disclosure, the base station and the UE may support signaling notifications of additional channel statistics or metrics (e.g., channel-associated information) during beam management procedures, and the base station may use the statistics or metrics to select a beam or channel. For example, the UE may measure the RSRP of one or more reference signals (such as CSI-RS or SSB) associated with the channel between the base station and the UE, and the UE may additionally measure or otherwise determine a set of channel statistics or metrics associated with the channel. The UE may transmit a report to the base station including at least an indication of the RSRP of one or more reference signals and the set of channel statistics or metrics associated with that channel. Thus, the base station may receive the report including the RSRP and the set of channel statistics or metrics, and may use the set of channel statistics or metrics together with the RSRP to select a beam or channel for communication with the UE.
[0055] Specific aspects of the subject matter described herein can be implemented to achieve one or more potential advantages. For example, the described techniques enable a base station to better select a beam or channel based on both the RSRP and a set of channel statistics for one or more CS-RS or SSBs that can affect beam or channel performance. In some examples, such techniques for better beam or channel selection based on RSRP and other channel statistics can increase the likelihood of successful communication between the base station and the UE, which can lead to higher data rates and greater overall system throughput and capacity. Furthermore, by increasing the likelihood of successful communication between the base station and the UE, the base station and the UE may potentially perform retransmissions less frequently, which can reduce resource usage and similarly increase the spectral efficiency of communication between the base station and the UE.
[0056] The aspects of this disclosure are initially described in the context of wireless communication systems. The aspects of this disclosure are further described in the context of process flow. The aspects of this disclosure are further explained and described by reference to apparatus diagrams, system diagrams, and flowcharts relating to reporting channel statistics used for beam management.
[0057] Figure 1 Examples of a wireless communication system 100 for channel statistics used in beam management, supported by various aspects of this disclosure, are described. 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 an LTE network, an LTE-A network, an LTE-A Pro network, or an 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.
[0058] Base station 105 can be distributed across a geographical area to form wireless communication system 100, and can be different types of devices or devices with different capabilities. Base station 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a geographical coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. The geographical coverage area 110 can be an example of a geographical area in which base station 105 and UE 115 can support signal communication according to one or more radio access technologies.
[0059] Each UE 115 can be distributed throughout the geographical coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. Each UE 115 can be a different type of device or a device with different capabilities. Figure 1 The document describes some example UE 115s. The UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network equipment (e.g., core network nodes, relay equipment, integrated access and backhaul (IAB) nodes, or other network equipment). Figure 1 As shown in the image.
[0060] Each base station 105 may communicate with the core network 130, or with each other, or both. For example, base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other directly (e.g., directly between base stations 105), indirectly (e.g., via the core network 130), or directly and indirectly on backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or include one or more radio links.
[0061] 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 transceiver station, radio base station, access point, radio transceiver, B node, evolved B node (eNB), next-generation B node or gigabit B node (any of which may be referred to as gNB), home B node, home evolved B node, or other suitable terms.
[0062] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, etc. 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, which may be implemented in various objects such as appliances or vehicles, meters, etc.
[0063] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, as well as base station 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 As shown in the image.
[0064] 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 set of radio frequency 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 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 carrier operation, user data, or other signaling. For example, synchronization signals may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), etc. In some cases, PSS, SSS, and / or broadcast information (e.g., a physical broadcast channel (PBCH)) may be transmitted within different SSBs (on corresponding directional beams), where one or more SSBs may be included within a synchronization signal burst or a set of synchronization signal bursts. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. UE 115 can be configured to have multiple downlink component carriers and one or more uplink component carriers according to carrier aggregation configuration. Carrier aggregation can be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.
[0065] 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 Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by UE 115. The carrier may operate in an autonomous mode in which initial acquisition and connection can be performed by UE 115 via that carrier, or in a non-autonomous mode in which the carrier may connect to carriers anchored using different carriers (e.g., different carriers of the same or different radio access technologies).
[0066] 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. The carrier may carry 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).
[0067] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several defined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) of a carrier for a particular radio access technology. Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication over a single carrier bandwidth within 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 may be configured to operate over a portion (e.g., a subband, BWP) or all of the carrier bandwidth.
[0068] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or DFT-S-OFDM). In a system employing MCM, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, 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 may refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and using multiple spatial layers can further improve the data rate or data integrity of communication with the UE 115.
[0069] One or more parameter designs for a carrier can be supported, where the parameter design may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier can be divided into one or more BWPs with the same or different parameter designs. 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 limited to one or more active BWPs.
[0070] The time interval of base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period T. s =1 / (Δf) max ·N f ) seconds, where Δf max This can represent the maximum supported subcarrier spacing, while N f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources 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 (SFN) (e.g., ranging from 0 to 1023).
[0071] 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 (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into several 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 several symbol periods (e.g., depending on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.
[0072] A subframe, time slot, mini-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 bursts of shortened TTIs (sTTIs)).
[0073] Physical channels can be multiplexed on a carrier using various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, 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 or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search 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 in one or more aggregation levels arranged in a cascaded manner. An aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information in 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 configured to send control information to a particular UE 115.
[0074] Each base station 105 may provide communication coverage via one or more cells (e.g., macrocells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with base station 105 (e.g., on a carrier) and may be associated with an identifier used to distinguish adjacent 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 a logical communication entity operates. The extent of such cells may vary from smaller areas (e.g., structures, subsets of structures) to larger areas depending on various factors (such as 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.
[0075] Macrocells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs 115 that have service subscriptions with a network provider supporting the macrocell. Small cells may be associated with a lower-power base station 105 (compared to macrocells) and may operate in the same or different (e.g., licensed or unlicensed) frequency bands as macrocells. Small cells may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with the small cell (e.g., UEs 115 in a Closed Subscriber Group (CSG), or UEs 115 associated with a user in a home or office). Base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.
[0076] In some examples, a carrier can support multiple cells and can be configured with different cells based on different protocol types that can provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).
[0077] In some examples, base station 105 may be mobile, and thus provide communication coverage to mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the 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 to various geographic coverage areas 110.
[0078] 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.
[0079] 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 may include communication from devices that have integrated sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to people interacting with the application. Some UE 115 devices may be designed to collect information or automate the behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wilderness survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial toll collection.
[0080] Some UEs 115 can be configured to operate in reduced-power modes, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UEs 115 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 UEs 115 can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., subcarriers or resource block (RB) set) within the carrier, within the carrier's guard band, or outside the carrier.
[0081] Wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services, such as Mission-Critical Talk-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData)). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general business applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency are used interchangeably herein.
[0082] In some examples, UE 115 may also be able to communicate directly with other UE 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). 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 outside the geographic coverage area 110 of base station 105 or may be unable to receive transmissions from base station 105 for other reasons. In some examples, groups of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where 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 individual UE 115s without involving base station 105.
[0083] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-vehicle (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these communications. Vehicles may signal information related to traffic conditions, signaling, weather, safety, emergencies, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate via vehicle-to-network (V2N) communication through one or more network nodes (e.g., base station 105) with roadside infrastructure (such as roadside units), or with the network, or with both.
[0084] Core network 130 provides 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). The EPC or 5GC may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) for 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)) for routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by base station 105 associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Carrier IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0085] Some network devices (such as base station 105) may include sub-components, such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with each 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).
[0086] Wireless communication system 100 can operate using one or more frequency bands in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz band is referred to as a UHF band or decimeter band because the wavelengths range from about 1 decimeter to 1 meter. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to UE 115 located indoors. Compared to transmissions using smaller frequencies and longer waves in the lower HF or VHF portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).
[0087] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) zoning using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band) or in the extremely high frequency (EHF) zoning using a 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 corresponding devices can be smaller and more closely spaced than UHF antennas. In some examples, this can facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein can be employed across transmissions using one or more different frequency zonings, and the frequency band usage specified across these frequency zonings may vary by country or regulatory authority.
[0088] Wireless communication system 100 may utilize both licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio spectrum bands, devices (such as base station 105 and UE 115) may employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed frequency bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed frequency bands. Operation in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.
[0089] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ technologies 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 coexist 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 several 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, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.
[0090] 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. This technique is known as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may 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.
[0091] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) 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 a particular orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustments associated with each antenna element may be defined by a beamforming weight set associated with a particular orientation (e.g., the antenna array relative to the transmitting or receiving device, or relative to some other orientation).
[0092] Base station 105 or UE 115 may use beamsweeping techniques as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) for beamforming operations to facilitate directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals (such as CSI-RS or SSB) based on different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the transmitting device (such as base station 105) or the receiving device (such as UE 115)) to identify the beam direction that base station 105 uses for later transmission or reception. In some aspects, for example, base station 105 may transmit CSI-RS or SSB to UE 115 as part of a beam management procedure.
[0093] 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 the 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 the 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 may report to base station 105 an indication of the signals received by UE 115 with the highest signal quality or other acceptable signal quality.
[0094] In some examples, transmissions performed by a device (e.g., by base station 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate combined beams for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals that can be precoded or uncoded (e.g., cell-specific reference signals (CRS), CSI-RS, or SSB). UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).
[0095] A receiver device (e.g., UE 115) may attempt multiple receive 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. Such signals may include SSB or CSI-RS. For example, the receiver device may attempt multiple receive directions by: receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets), or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiver device may use a single receive configuration to receive along a single beam direction (e.g., when a data signal is received). A single receive configuration can be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions). In some aspects, for example, UE 115 may receive SSB or CSI-RS as part of the beam management procedure.
[0096] The wireless communication system 100 can 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 can be IP-based. The Radio Link Control (RLC) layer performs packet segmentation and reassembly for communication on logical channels. The Media Access Control (MAC) layer performs priority handling and multiplexing of logical channels into transport channels. The MAC layer can also use error detection, error correction, or both to support MAC layer retransmissions to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections between the UE 115 and the base station 105 or core network 130 that support user plane data radio bearers. At the physical layer, transport channels can be mapped to physical channels.
[0097] 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 correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve MAC layer throughput in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device may support simultaneous time-slot HARQ feedback, where the device can provide HARQ feedback in a specific time slot for data received in previous symbols within that time slot. In other cases, the device may provide HARQ feedback in subsequent time slots or according to some other time interval.
[0098] In some implementations, base station 105 and UE 115 may maintain reliable communication via communication link 125 based on the execution of beam management procedures. In some examples, base station 105 may transmit one or more CSI-RS or SSBs associated with the channel to UE 115, and UE 115 may measure the RSRP (e.g., received power) of the CSI-RS and SSB. Additionally, UE 115 may determine a set of channel statistics associated with the channel based on the execution of beam management procedures. In some implementations, the set of channel statistics may include channel frequency selectivity, channel time selectivity, channel frequency correlation, channel time correlation, or any combination thereof. In some aspects, UE 115 may determine the set of channel statistics to assist base station 105 in selecting a beam or channel for beam management procedures.
[0099] UE 115 may transmit a report to base station 105 including at least an indication of RSRP and a channel statistics set associated with the channel. Base station 105 may receive the report and select a beam or channel for communication with the UE based on the indication of RSRP and channel statistics set. In some examples, base station 105 may use the indication of RSRP and channel statistics set to determine a beam or channel (e.g., a beam or channel that provides a greater probability of successful communication than a beam or channel that base station 105 could exclusively determine based on RSRP). Thus, base station 105 may select a better beam or channel, and base station 105 and UE 115 may communicate on the selected beam or channel.
[0100] Figure 2 Examples of a wireless communication system 200 supporting beam management and reporting channel statistics according to various aspects of this disclosure are described. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105 and a UE 115-a, which may be as described herein with reference to references. Figure 1 Examples of the corresponding devices described. Base station 105-a and UE 115-a can communicate on communication link 205 within geographical coverage area 110a, and in some examples, UE 115-a can transmit a report 210 to base station 105-a on communication link 205, which includes at least an indication of RSRP 215 and channel statistics set 220.
[0101] In some scenarios, base station 105-a and UE 115-a may support directional transmission and may communicate via one or more directional beams. For example, base station 105-a and UE 115-a may communicate via a transmit beam or a receive beam or both, and directional transmission may be performed using directional beams on communication link 205. Further, the directional beams used by base station 105-a and UE 115-a may be associated with a channel or medium between base station 105-a and UE 115-b. Thus, base station 105-a and UE 115-a may communicate via communication link 205 using one or more beams associated with one or more channels. In some aspects, communication link 205 may be a line-of-sight link or involve relatively few reflections (e.g., it may be a non-line-of-sight link including one or more reflections).
[0102] In some situations, the radio environment between base station 105-a and UE 115-a may change, which may affect the quality of the beam or channel used by base station 105-a and UE 115-a, or both. For example, UE 115-a may move (e.g., change its physical location), or an object may appear between base station 105-a and UE 115-a, which may affect the signal strength or signal quality transmitted on communication link 205, or both. Furthermore, in some systems supporting relatively high-frequency communication (such as NR systems operating in the FR2 radio spectrum band), changes in the radio environment between base station 105-a and UE 115-a can have a more significant impact on the quality of the beam or channel. Further, in such systems supporting relatively higher-frequency communication, changes in the radio environment between base station 105-a and UE 115-a can lead to abrupt changes (e.g., small time-scale changes) in the quality of the beam or channel used by base station 105-a and UE 115-a.
[0103] In some cases, such changes in the radio environment between base station 105-a and UE 115-a may reduce the reliability of communication link 205, and similarly, may reduce the likelihood of successful communication between base station 105-a and UE 115-a. Furthermore, environmental changes affecting the transmission of radio signals between UE 115-a and base station 105-a can lead to random coherent / destructive interference, multipath propagation problems, fading, etc. As an example, frequency-selective fading may be characterized by various null values or a significant reduction in channel amplitude in the received signal across the resource element set. Therefore, some resource elements and some frequencies may experience fading caused by external factors such as reflections, interference, etc.
[0104] To maintain reliable communication between base station 105-a and UE 115-a, base station 105-a and UE 115-a may execute one or more beam management procedures. In some cases, based on the execution of beam management procedures, base station 105-a may transmit one or more reference signals, such as CSI-RS or SSB, on the current channel between base station 105-a and UE 115-a via one or more beams (e.g., each CSI-RS or SSB may be transmitted by base station 105-a using a different directional beam). Accordingly, UE 115-a may measure the received power (e.g., RSRP 215) of one or more reference signals associated with the channel. For example, UE 115-a may receive CSI-RS or SSB on a resource set (e.g., frequency resources, such as resource elements) and may measure the received power (e.g., signal amplitude) of CSI-RS or SSB on each resource of that resource set. In some cases, UE 115-a may determine RSRP 215 based on averaging the measured signal amplitudes of CSI-RS or SSB on each resource of the resource set.
[0105] In some scenarios, UE 115-a may transmit a report to base station 105-a including RSRP 215 associated with each CSI-RS or SSB, and based on the received report, base station 105-a may select a beam or channel for communication with UE 115-a based on the measured RSRP 215 of the corresponding CSI-RS or SSB. For example, base station 105-a may select a beam corresponding to the CSI-RS or SSB that UE 115-a measures to have the highest RSRP 215 (e.g., the CSI-RS or SSB with the largest average signal strength or amplitude received by UE 115-a). Thus, base station 105-a may exclusively select a beam or channel for communication with UE 115-a (or refine the beam used for communication with UE 115-a) based on the RSRP 215 of one or more reference signals transmitted by base station 105-a.
[0106] However, in some cases, beam or channel performance can be based on other channel statistics 220 or channel metrics besides the RSRP 215 measured by UE 115-a. For example, UE 115-a can measure a first channel and a second channel with the same or similar RSRP 215-a, but the first and second channels can still provide different channel performance (e.g., different probabilities of successful communication). More specifically, UE 115-a can measure the same or similar RSRP 215 (e.g., average signal amplitude over the resource element set) for the first and second channels, but the signal amplitude of the first channel can be more consistent and reliable across the resource element set than the signal amplitude of the second channel. In other words, the plotted relationship between the resource element set and the transmitted signal amplitude (in dB) on the first channel can be more consistent and have fewer spikes, such as sudden drops in signal amplitude, than the plotted relationship between the resource element set and the transmitted signal amplitude (in dB) on the second channel.
[0107] In such examples, the first channel may be associated with lower frequency selectivity than the second channel (i.e., the first channel may have less frequency selectivity or experience less frequency selective fading), and correspondingly, the first channel may have less channel estimation loss or less channel estimation error than the second channel. Furthermore, based on the fact that the first channel has lower frequency selectivity than the second channel, UE 115-a can use the first channel, which has a lower power consumption rate, for communication. Additionally, in some cases, the first channel may be associated with a channel temporal dispersion greater than a threshold size (e.g., greater than the cyclic prefix size or duration), which can reduce the impact of inter-symbol interference on transmissions on the first channel (relative to the second channel).
[0108] Thus, even if UE 115-a can measure the same or similar RSRP 215 associated with both the first and second channels, the first channel may still be a superior channel based on the channel statistics 220 associated with it. However, base station 105-a may be unaware of such channel statistics 220 and may exclusively select between the first and second channels based on RSRP 215. For example, in cases where the second channel has a relatively larger RSRP 215 than the first channel, base station 105-a may select the second channel for communication with UE 115-a. Thus, in some cases, base station 105-a may select a suboptimal channel without knowing the channel statistics 220 associated with either the first or second channel. Furthermore, beam or channel selection made exclusively on RSRP 215 may be particularly suboptimal in some systems (such as NR systems) where there is a greater probability of sudden changes in beam or channel quality and reliability.
[0109] In some implementations of this disclosure, UE 115-a may measure RSRP 215 of one or more reference signals associated with the channel, and may additionally measure or otherwise determine a channel statistics set 220 associated with the channel. The channel statistics set 220 may include frequency selectivity, time selectivity, frequency correlation, time correlation, dispersion (e.g., time dispersion), Doppler spread, or any combination thereof, and other statistics or measures that may affect the quality or performance of the beam or channel. In some examples, UE 115-a may measure or otherwise determine the channel statistics set 220 to assist base station 105-a in selecting a more optimized beam or channel (e.g., compared to beam or channel selection based solely on RSRP 215). Thus, UE 115-a may transmit to base station 105-a a report 210 that includes at least an indication of RSRP 215 (e.g., an integer value or range of integer values) and the channel statistics set 220.
[0110] In some examples, report 210 may include indications of RSRP 215 and channel statistics set 220 in separate fields. For example, the indication of RSRP 215 may be in a first field of report 210, while the channel statistics set 220 may be in a second field of report 210. In some aspects, report 210 may include channel statistics set 220 in several fields. For example, report 210 may include a field for frequency selectivity, another field for time selectivity, etc. In some other examples, UE 115-a may determine parameters based on a combination of indications of RSRP 215 and channel statistics set 220. For example, the indications of RSRP 215 and channel statistics set 220 may each correspond to a numeric, integer, or bit value, and UE 115-a may calculate or otherwise determine parameters (e.g., another numerical or bit value) by adding the value corresponding to the indication of RSRP 215 to the value corresponding to the channel statistics set 220. Thus, the parameter can be based on a combination (e.g., a sum) of indications to RSRP 215 and channel statistics set 220. In some examples, UE 115-a may subtract the determined parameter from either the value corresponding to the indication to RSRP 215 or the value corresponding to the channel statistics set (e.g., to reduce the number of bits in report 210), and may transmit an indication of the difference (e.g., an increment) to base station 105-a via report 210.
[0111] In some aspects, UE 115-a can transmit report 210 based on configuration. In some examples, the configuration may be based on the capabilities of UE 115-a, and thus, UE 115-a can transmit an indication of the capabilities of UE 115-a to base station 105-a. In some implementations, base station 105-a can transmit an indication of the configuration to UE 115-a. In such implementations, the configuration may be configured at UE 115-a via RRC configuration or MAC channel element (CE) configuration. In some other implementations, the configuration may be pre-configured at UE 115-a. For example, the configuration used by UE 115-a to transmit report 210 may be defined in the specification and pre-configured at UE 115-a. Thus, UE 115-a can transmit report 210 based on configuration (or include separate fields for indications of RSRP 215 and channel statistics set 220, or include parameters based on a combination of indications of RSRP 215 and channel statistics set 220).
[0112] In an implementation where base station 105-a receives indications to RSRP 215 and channel statistics set 220 in separate fields of report 210, base station 105-a may identify a separate value corresponding to each indication in the indications to RSRP 215 and channel statistics set 220, and may select a beam or channel for communication with UE 115-a based on the separate values of the indications to RSRP 215 and channel statistics set 220. Alternatively, in an implementation where base station 105-a receives parameters based on a combination of indications to RSRP 215 and channel statistics set 220 in report 210, base station 105-a may select a beam or channel based on these parameters (e.g., based on the sum of the indications to RSRP 215 and channel statistics set 220). Alternatively, base station 105-a may determine, based on parameters, the value corresponding to the indication of RSRP 215 and the individual value corresponding to channel statistics set 220, and may use the indication of RSRP 215 and the individual value of channel statistics set 220 to select a beam or channel for communication with UE 115-a.
[0113] In any implementation, base station 105-a may select a beam or channel by taking into account at least RSRP 215 and channel statistics set 220 (e.g., based on CSI-RS or SSB for beam management) measured or otherwise determined by UE 115-a. In some examples, base station 105-a may select a beam based on indications of RSRP 215 and channel statistics set 220, and may transmit an indication of the selected beam to UE 115-a. Accordingly, base station 105-a and UE 115-a may communicate using the selected beam. Additionally or alternatively, base station 105-a may select a channel based on indications of RSRP 215 and channel statistics set 220, and may transmit an indication of the selected channel to UE 115-a. Accordingly, base station 105-a and UE 115-a may communicate using the selected channel. In some respects, base station 105-a may select beams or channels associated with low frequency selectivity or low time selectivity, or both.
[0114] In some examples, UE 115-a may perform an equalization procedure associated with the selected beam or channel. In some aspects, UE 115-a may perform a relatively simple equalization procedure based on the equalization procedure associated with the beam or channel selected by base station 105-a based on channel statistics set 220. Thus, UE 115-a can perform fewer or less power-intensive computations, and correspondingly, the power consumption of UE 115-a can be reduced when performing the equalization procedure. Furthermore, as described herein, the selection of a beam or channel based on RSRP 215 and channel statistics set 220 (e.g., selecting a beam or channel with less frequency selectivity or less time selectivity) can reduce channel estimation loss or channel estimation error, which can increase the likelihood of successful communication between base station 105-a and UE 115-a.
[0115] Figure 3 An example of a process flow 300 for channel statistics used in beam management, supporting various aspects of this disclosure, is described. In some examples, process flow 300 may be implemented or be implemented to realize aspects of wireless communication system 100 or wireless communication system 200. For example, process flow 300 may describe communication between base station 105-b and UE 115-b, which may be as described herein, including references to... Figure 1 and 2 Examples of the corresponding devices described. In some examples, UE115-b may transmit a report to base station 105-b, including an RSRP for one or more reference signals and an indication of a channel statistics set associated with the channel, as part of a beam management procedure.
[0116] At 305, base station 105-b may transmit one or more reference signals (such as CSI-RS or SSB) to UE 115-b for use in or as part of a beam management procedure. These one or more CSI-RS or SSBs may be associated with a first channel (e.g., the initial or current channel on which base station 105-b and UE 115-b communicate). In some cases, base station 105-b may use different directional beams to transmit each of the one or more CSI-RSs.
[0117] At 310, UE 115-b can measure the received power (e.g., RSRP) of one or more reference signals in a beam management protocol. In some cases, base station 105-b may use different directional beams to transmit each reference signal (e.g., each CSI-RS or SSB), and the received power of one or more reference signals measured by UE 115-a may be based on the beam direction, the location of UE 115-b, the presence of an object between base station 105-b and UE 115-b, or any combination thereof.
[0118] At 315, UE 115-b may determine a set of channel statistics associated with the channel based on beam management procedures. In some examples, the set of channel statistics may include any statistics or measures associated with the channel that may reflect or affect the performance of the channel or beam. For example, the set of channel statistics may include frequency selectivity, time selectivity, frequency correlation, time correlation, or any combination thereof, as included herein. Figure 2 As described.
[0119] At 320, in some implementations, base station 105-b may transmit instructions regarding configuration to UE 115-b. In some aspects, the configuration may be based on the capabilities of UE 115-b. In some examples, a report including at least instructions regarding received power and channel statistics is configuration-based. For example, UE 115-b may receive configuration from base station 105-b and may determine whether to include both instructions regarding received power and channel statistics in the report, which channel statistics to include in the report, or how to include instructions regarding received power and channel statistics in the report based on the configuration. For example, UE 115-b may determine, based on the configuration, the number of fields to include in the report, whether to include instructions regarding received power and channel statistics in separate fields, or whether to include instructions regarding received power and channel statistics in one field (e.g., as a combination equal to the instructions regarding received power and channel statistics or as a single parameter equal to an increment relative to one of the received power or channel statistics sets). In some other implementations, base station 105-b may suppress the transmission of instructions regarding configuration to UE 115-b. In such implementations, the configuration can be a pre-configured version of UE 115-b.
[0120] At 325, UE 115-b may transmit to base station 105-b a report that includes at least an indication of received power and a channel statistics set associated with the channel. In some examples, UE 115-b may transmit the report based on its configuration, which may be received at 320 or pre-configured at UE 115-b.
[0121] At 330, base station 105-b selects one or both of a beam and a second channel for communication (e.g., subsequent communication) with UE 115-b based on indications of received power and channel statistics. In this way, base station 105-b can more optimally select a beam or channel associated with higher performance. In other words, base station 105-b can select a beam or channel that is more likely to lead to successful communication between base station 105-b and UE 115-b than a beam or channel that base station 105-b could otherwise exclusively select based on RSRP. In some examples, base station 105-b can select a beam or channel based on an optimization (e.g., an optimization algorithm) between high received power and low frequency or time selectivity. For example, this optimization algorithm may include received power, frequency selectivity, or time selectivity, or a combination thereof, as input, and can be executed to select a beam or channel based on the inputs (and in some cases, weights applied to each input). Accordingly, base station 105-b can select a beam or channel associated with low channel estimation loss or channel estimation error and high performance.
[0122] At 335, in some implementations, base station 105-b may transmit an indication of a selected beam to UE 115-b. At 340, in some additional or alternative implementations, base station 105-b may transmit an indication of a selected channel (e.g., a second channel) to UE 115-b. In either implementation, base station 105-b and UE 115-b may communicate using the selected beam or channel. In some examples, the beam or channel selected based on received power and channel statistics may be used by base station 105-b and UE 115-b to increase achievable system throughput or data rate, as well as other advantages described herein.
[0123] Figure 4 Figure 400 illustrates a device 405 for channel statistics used in beam management, supporting a report according to various aspects of this disclosure. Device 405 may be an example of various aspects of UE 115 as described herein. Device 405 may include a receiver 410, a communication manager 415, and a transmitter 420. Device 405 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0124] Receiver 410 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 reporting channel statistics used for beam management). This information can be transmitted to other components of device 405. Receiver 410 can be a reference... Figure 7 Examples of various aspects of the transceiver 720 described. The receiver 410 may utilize a single antenna or an array of antennas.
[0125] Communication manager 415 can measure the received power of one or more reference signals associated with a channel for beam management procedures; determine a channel statistics set associated with the channel based on the beam management procedures; and transmit a report to a base station including at least an indication of the received power and the channel statistics set associated with the channel. Communication manager 415 may be an example of aspects of communication manager 710 described herein.
[0126] The communication manager 415 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 415 or its sub-components may be performed by a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (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.
[0127] The communication manager 415 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality 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 415 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 415 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.
[0128] Transmitter 420 can transmit signals generated by other components of device 405. In some examples, transmitter 420 may coexist with receiver 410 in a transceiver module. For example, transmitter 420 may be a reference... Figure 7 Examples of various aspects of the transceiver 720 described. The transmitter 420 may utilize a single antenna or an array of antennas.
[0129] In some examples, the communication manager 415 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 410 and transmitter 420 may be implemented as analog components (e.g., amplifiers, filters, antennas) coupled to the mobile device modem to enable wireless transmission and reception over one or more frequency bands.
[0130] The communication manager 415, as described herein, can be implemented to achieve one or more potential advantages. In some implementations of this disclosure, the communication manager 415 can achieve greater throughput by communicating with the base station 105 using a beam or channel selected based on received power and a channel-associated set of channel statistics. Similarly, the device 405 can communicate with the base station 105 at a higher data rate, which can reduce the amount of time spent by one or more processing units of the device 405 transmitting or monitoring transmissions from the base station 105. By reducing the amount of time spent by one or more processing units of the device 405 transmitting or monitoring transmissions, the one or more processing units can spend longer periods in sleep mode and similarly conserve battery power, potentially increasing the battery life of the device 405.
[0131] Furthermore, the communication manager 415 can perform a simpler channel equalization procedure on channels selected based on channel statistics (e.g., channels with low frequency selectivity or low time selectivity). In this way, one or more processing units of device 405 can reduce the computational complexity of the channel equalization procedure, which can further reduce the power consumed by device 405 during channel equalization and can also further increase the battery life of device 405.
[0132] Figure 5 Figure 500 illustrates a device 505 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure. Device 505 may be an example of various aspects of device 405 or UE 115 as described herein. Device 505 may include a receiver 510, a communication manager 515, and a transmitter 535. Device 505 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0133] 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 reporting channel statistics used for beam management). This information can be transmitted to other components of device 505. Receiver 510 can be a reference... Figure 7 Examples of various aspects of the transceiver 720 described. The receiver 510 may utilize a single antenna or an array of antennas.
[0134] Communication manager 515 may be an example of aspects of communication manager 415 as described herein. Communication manager 515 may include RSRP manager 520, channel statistics manager 525, and report manager 530. Communication manager 515 may be an example of aspects of communication manager 710 as described herein.
[0135] RSRP manager 520 can measure the received power of one or more reference signals associated with a channel for beam management procedures. Channel statistics manager 525 can determine a set of channel statistics associated with the channel based on the beam management procedures. Report manager 530 can transmit a report to the base station that includes at least an indication of the received power and the set of channel statistics associated with the channel.
[0136] Transmitter 535 can transmit signals generated by other components of device 505. In some examples, transmitter 535 may coexist with receiver 510 in a transceiver module. For example, transmitter 535 may be a reference... Figure 7 Examples of various aspects of the transceiver 720 described. The transmitter 535 may utilize a single antenna or an array of antennas.
[0137] Figure 6Figure 600 illustrates a communication manager 605 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure. Communication manager 605 may be an example of aspects of communication manager 415, communication manager 515, or communication manager 710 described herein. Communication manager 605 may include RSRP manager 610, channel statistics manager 615, reporting manager 620, configuration manager 625, channel equalization manager 630, beam selection manager 635, and channel selection manager 640. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).
[0138] The RSRP manager 610 can measure the received power of one or more reference signals used in beam management procedures, which are associated with the channel.
[0139] The channel statistics manager 615 can determine a set of channel statistics associated with a channel based on beam management procedures. In some examples, frequency selectivity associated with the channel is determined, wherein the channel statistics set includes the determined frequency selectivity. In some examples, time selectivity associated with the channel is determined, wherein the channel statistics set includes the determined time selectivity. In some examples, one or both of frequency correlation and time correlation associated with the channel are determined, wherein the channel statistics set includes one or both of frequency correlation and time correlation.
[0140] The report manager 620 can transmit to the base station a report that includes at least an indication of the received power and a channel statistics set associated with the channel. In some examples, the report manager 620 can transmit a first indication of the received power in a first field of the report and a second indication of the channel statistics set in a second field of the report. In some examples, the report manager 620 can determine parameters based on a combination of the received power and the channel statistics set.
[0141] In some examples, the report manager 620 may transmit a report that includes determined parameters. In some cases, the parameters include a difference between the received power and the combined parameters. In some cases, the report includes several bits based on the received power and a set of channel statistics.
[0142] Configuration manager 625 can identify a configuration for transmitting a report that includes at least an indication of received power and a channel statistics set, wherein the channel statistics set is determined based on this configuration. In some examples, configuration manager 625 can receive an indication of the configuration from the base station. In some cases, the configuration is based on the capabilities of the UE. In some cases, the configuration includes pre-configurations of the UE.
[0143] The channel equalization manager 630 can perform channel equalization procedures based on a determined set of channel statistics.
[0144] The beam selection manager 635 can receive an indication of the selected beam from the base station based on an indication of received power and a set of channel statistics. In some examples, the beam selection manager 635 can communicate with the base station using the selected beam.
[0145] The channel selection manager 640 can receive an indication for a second channel from the base station based on an indication of received power and a set of channel statistics. In some examples, the channel selection manager 640 can use the second channel to communicate with the base station.
[0146] Figure 7 A diagram of a system 700 including a device 705 supporting channel statistics reporting for beam management, according to various aspects of this disclosure, is shown. Device 705 may be an example of device 405, device 505, or UE 115 as described herein, or a component including such devices. Device 705 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 710, an I / O controller 715, a transceiver 720, an antenna 725, a memory 730, and a processor 740. These components may be in electronic communication via one or more buses (e.g., bus 745).
[0147] The communication manager 710 can measure the received power of one or more reference signals associated with a channel for a beam management procedure; determine a channel statistics set associated with the channel based on the beam management procedure; and transmit a report to the base station that includes at least an indication of the received power and the channel statistics set associated with the channel.
[0148] The I / O controller 715 manages the input and output signals of device 705. The I / O controller 715 can also manage peripheral devices not integrated into device 705. In some cases, the I / O controller 715 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 715 may utilize an operating system, such as... Or another known operating system. In other cases, the I / O controller 715 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, the I / O controller 715 may be implemented as part of a processor. In some cases, a user may interact with the device 705 via the I / O controller 715 or via hardware components controlled by the I / O controller 715.
[0149] Transceiver 720 can communicate bidirectionally via one or more antennas, wired or wireless links, as described herein. For example, transceiver 720 may represent a wireless transceiver and be able to communicate bidirectionally with another wireless transceiver. Transceiver 720 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.
[0150] In some cases, a wireless device may include a single antenna 725. However, in other cases, the device may have more than one antenna 725, which may be able to transmit or receive multiple wireless transmissions concurrently.
[0151] Memory 730 may include random access memory (RAM) and read-only memory (ROM). Memory 730 may store computer-readable, computer-executable code 735, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 730 may particularly include a basic I / O system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0152] Processor 740 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, central processing units (CPUs), microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 740 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 740. Processor 740 may be configured to execute computer-readable instructions stored in memory (e.g., memory 730) to cause device 705 to perform various functions (e.g., supporting functions or tasks for reporting channel statistics for beam management).
[0153] Code 735 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 735 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 735 may not be directly executed by processor 740, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.
[0154] Figure 8Figure 800 illustrates a device 805 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure. Device 805 may be an example of various aspects of base station 105 as described herein. Device 805 may include a receiver 810, a communication manager 815, and a transmitter 820. Device 805 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0155] Receiver 810 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 reporting channel statistics used for beam management). This information can be transmitted to other components of device 805. Receiver 810 can be a reference... Figure 11 Examples of various aspects of the transceiver 1120 described herein. The receiver 810 may utilize a single antenna or an array of antennas.
[0156] The communication manager 815 may transmit to the UE one or more reference signals for beam management procedures, the one or more reference signals being associated with a first channel; receive from the UE, based on the beam management procedures, a report including at least an indication of received power associated with the one or more reference signals and a channel statistics set associated with the first channel; and select one or both of a beam and a second channel for communication with the UE based on the indication of received power and channel statistics set. The communication manager 815 may be an example of aspects of the communication manager 1110 described herein.
[0157] The communication manager 815 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 815 or its sub-components may be performed by a general-purpose processor, DSP, 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.
[0158] The communication manager 815 or its sub-components may be physically located at various locations, including being distributed such that portions of the functionality 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 815 or its sub-components may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 815 or its sub-components may be combined with one or more other hardware components (including, but not limited to, I / O components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof).
[0159] Transmitter 820 can transmit signals generated by other components of device 805. In some examples, transmitter 820 may coexist with receiver 810 in a transceiver module. For example, transmitter 820 may be a reference... Figure 11 Examples of various aspects of the transceiver 1120 described. The transmitter 820 may utilize a single antenna or an array of antennas.
[0160] As described herein, device 805 can select a beam or channel based at least on indications of received power and channel statistics. By taking into account at least the indications of received power and channel statistics, device 805 can select a beam or channel associated with higher performance compared to the case where device 805 exclusively selects a beam or channel based on received power. By selecting a beam or channel with higher performance, device 805 can communicate more information to UE 115, which can increase system throughput and support efficient resource utilization between device 805 and UE 115, allowing device 805 to allocate more resources to other devices in the system. Furthermore, based on communicating on a beam or channel associated with high performance, device 805 can transmit less control signaling to UE 115. Thus, device 805 can reduce signaling overhead between device 805 and UE 115, and therefore reduce interference levels in the system.
[0161] Figure 9 Figure 900 illustrates a device 905 for channel statistics used in beam management, supporting a report according to various aspects of this disclosure. Device 905 may be an example of aspects of device 805 or base station 105 as described herein. Device 905 may include a receiver 910, a communication manager 915, and a transmitter 935. Device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0162] 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 channel statistics reported for beam management). This information can be transmitted to other components of device 905. Receiver 910 can be a reference... Figure 11 Examples of various aspects of the transceiver 1120 described herein. The receiver 910 may utilize a single antenna or an array of antennas.
[0163] Communication manager 915 may be an example of aspects of communication manager 815 as described herein. Communication manager 915 may include CSI-RS manager 920, report manager 925, and selection manager 930. Communication manager 915 may be an example of aspects of communication manager 1110 as described herein.
[0164] CSI-RS manager 920 can transmit one or more reference signals for beam management procedures to the UE, the one or more reference signals being associated with a first channel. Report manager 925 can receive from the UE, based on the beam management procedures, a report including at least an indication of the received power associated with the one or more reference signals and a channel statistics set associated with the first channel. Selection manager 930 can select one or both of a beam and a second channel for communication with the UE based on the indications of the received power and the channel statistics set.
[0165] Transmitter 935 can transmit signals generated by other components of device 905. In some examples, transmitter 935 may coexist with receiver 910 in a transceiver module. For example, transmitter 935 may be a reference... Figure 11 Examples of various aspects of the transceiver 1120 are described. The transmitter 935 may utilize a single antenna or an array of antennas.
[0166] Figure 10 A diagram 1000 illustrates a communication manager 1005 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure. The communication manager 1005 may be an example of aspects of the communication manager 815, communication manager 915, or communication manager 1110 described herein. The communication manager 1005 may include a CSI-RS manager 1010, a report manager 1015, a selection manager 1020, a report manager 1025, a channel statistics manager 1030, a configuration manager 1035, a beam selection manager 1040, and a channel selection manager 1045. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).
[0167] The CSI-RS manager 1010 can transmit one or more reference signals to the UE for beam management procedures, the one or more reference signals being associated with a first channel.
[0168] The report manager 1015 can receive reports from the UE based on beam management procedures, including at least an indication of the received power associated with one or more reference signals and a set of channel statistics associated with a first channel.
[0169] The selection manager 1020 can select one or both of the beam and the second channel for communication with the UE based on indications of received power and channel statistics.
[0170] The report manager 1025 may receive a first indication of received power in a first field of the report, and a second indication of channel statistics in a second field of the report. In some examples, the report manager 1025 may receive a report that includes parameters based on a combination of received power and channel statistics. In some cases, the parameters include a difference between the combination and the indication of received power.
[0171] The channel statistics manager 1030 can identify channel statistics determined by the UE. In some cases, the channel statistics set includes frequency selectivity associated with a first channel. In some cases, the channel statistics set includes time selectivity associated with the first channel. In some cases, the channel statistics set includes one or both of frequency correlation and time correlation associated with the first channel.
[0172] Configuration manager 1035 can transmit instructions on configuration to UE, including at least a report on the received power and channel statistics set based on that configuration.
[0173] The beam selection manager 1040 can transmit an instruction to the UE for the selected beam. In some examples, the beam selection manager 1040 can use the selected beam to communicate with the UE.
[0174] The channel selection manager 1045 can transmit an indication to the UE of a selected second channel. In some examples, the channel selection manager 1045 can use the selected second channel to communicate with the UE.
[0175] Figure 11 A diagram of a system 1100 including a device 1105 supporting channel statistics reporting for beam management, according to various aspects of this disclosure, is shown. Device 1105 may be an example of device 805, device 905, or base station 105 as described herein, or a component including the aforementioned devices. Device 1105 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 1110, a network communication manager 1115, a transceiver 1120, an antenna 1125, a memory 1130, a processor 1140, and an inter-station communication manager 1145. These components may be in electronic communication via one or more buses (e.g., bus 1150).
[0176] The communication manager 1110 can transmit one or more reference signals for beam management procedures to the UE, the one or more reference signals being associated with a first channel; receive from the UE, based on the beam management procedures, a report including at least an indication of received power associated with one or more reference signals and a channel statistics set associated with the first channel; and select one or both of a beam and a second channel for communication with the UE based on the indication of received power and channel statistics set.
[0177] The network communication manager 1115 can manage communication with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1115 can manage the delivery of data communication by client devices (such as one or more UEs 115).
[0178] Transceiver 1120 can communicate bidirectionally via one or more antennas, wired or wireless links, as described herein. For example, transceiver 1120 may represent a wireless transceiver and be able to communicate bidirectionally with another wireless transceiver. Transceiver 1120 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.
[0179] In some cases, the wireless device may include a single antenna 1125. However, in other cases, the device may have more than one antenna 1125, which may be able to transmit or receive multiple wireless transmissions concurrently.
[0180] Memory 1130 may include RAM, ROM, or a combination thereof. Memory 1130 may store computer-readable code 1135 including instructions that, when executed by a processor (e.g., processor 1140), cause the device to perform the various functions described herein. In some cases, memory 1130 may, in particular, include a BIOS that controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0181] Processor 1140 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 1140 may be configured to use a memory controller to operate a memory array. In some cases, the memory controller may be integrated into processor 1140. Processor 1140 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1130) to cause device 1105 to perform various functions (e.g., supporting functions or tasks for reporting channel statistics for beam management).
[0182] Inter-site communication manager 1145 manages 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 1145 may 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 1145 may provide an X2 interface within LTE / LTE-A wireless communication network technology to facilitate communication between base stations 105.
[0183] Code 1135 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 1135 may be stored in a non-transient computer-readable medium, such as system memory or other types of memory. In some cases, code 1135 may not be directly executed by processor 1140, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.
[0184] Figure 12 A flowchart illustrating a method 1200 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure, is shown. Operation of method 1200 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1200 can be performed by, as described in reference... Figures 4 to 7 The described communication manager is used to perform these functions. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described herein. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described herein.
[0185] At 1205, the UE can measure the received power of one or more reference signals associated with the channel for beam management procedures. Operation of 1205 can be performed according to the methods described herein. In some examples, aspects of operation of 1205 can be determined by reference signals such as... Figures 4 to 7 The RSRP manager described is used to perform this.
[0186] At 1210, the UE can determine the channel statistics set associated with the channel based on the beam management procedure. The operation of 1210 can be performed according to the method described herein. In some examples, aspects of the operation of 1210 can be determined by referring to... Figures 4 to 7 The described channel statistics manager is used to perform this.
[0187] At point 1215, the UE may transmit to the base station a report including at least an indication of the received power and a channel statistics set associated with the channel. The operation of point 1215 may be performed according to the method described herein. In some examples, aspects of the operation of point 1215 may be determined by reference to... Figures 4 to 7 The report manager described is used to perform this.
[0188] Figure 13 A flowchart illustrating a method 1300 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure, is shown. Operation of method 1300 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1300 can be performed by, as described in reference... Figures 4 to 7 The described communication manager is used to perform these functions. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described herein. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described herein.
[0189] At 1305, the UE can measure the received power of one or more reference signals associated with the channel for beam management procedures. Operation of 1305 can be performed according to the methods described herein. In some examples, aspects of operation of 1305 can be determined by reference signals such as... Figures 4 to 7 The RSRP manager described is used to perform this.
[0190] At 1310, the UE can determine the channel statistics set associated with the channel based on the beam management procedure. The operation of 1310 can be performed according to the method described herein. In some examples, aspects of the operation of 1310 can be determined by referring to... Figures 4 to 7 The described channel statistics manager is used to perform this.
[0191] At point 1315, the UE may transmit to the base station a report including at least an indication of the received power and a channel statistics set associated with the channel. The operation of point 1315 may be performed according to the method described herein. In some examples, aspects of the operation of point 1315 may be determined by reference to... Figures 4 to 7 The report manager described is used to perform this.
[0192] At 1320, the UE can receive an indication of the selected beam from the base station based on an indication of the received power and channel statistics set. The operation of 1320 can be performed according to the method described herein. In some examples, aspects of the operation of 1320 can be determined by reference to... Figures 4 to 7 The described beam selection manager is used to perform this.
[0193] At 1325, the UE can use the selected beam to communicate with the base station. The operation of 1325 can be performed according to the method described herein. In some examples, aspects of the operation of 1325 can be derived from, as referenced... Figures 4 to 7 The described beam selection manager is used to perform this.
[0194] Figure 14A flowchart illustrating a method 1400 for channel statistics used in beam management, supporting reports according to various aspects of this disclosure, is shown. Operation of method 1400 can be implemented by a UE 115 or its components as described herein. For example, operation of method 1400 can be performed by, as described in reference... Figures 4 to 7 The described communication manager is used to perform these functions. In some examples, the UE can execute a set of instructions to control the UE's functional elements to perform the functions described herein. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the functions described herein.
[0195] At 1405, the UE can measure the received power of one or more reference signals associated with the channel for beam management procedures. Operation of 1405 can be performed according to the methods described herein. In some examples, aspects of operation of 1405 can be determined by, for example, reference... Figures 4 to 7 The RSRP manager described is used to perform this.
[0196] At 1410, the UE can determine the channel statistics set associated with the channel based on the beam management procedure. The operation of 1410 can be performed according to the method described herein. In some examples, aspects of the operation of 1410 can be determined by referring to... Figures 4 to 7 The described channel statistics manager is used to perform this.
[0197] At point 1415, the UE may transmit to the base station a report including at least an indication of the received power and a channel statistics set associated with the channel. The operation of point 1415 may be performed according to the method described herein. In some examples, aspects of the operation of point 1415 may be determined by reference to... Figures 4 to 7 The report manager described is used to perform this.
[0198] At 1420, the UE can receive an indication of the second channel from the base station based on an indication of the received power and channel statistics set. The operation of 1420 can be performed according to the method described herein. In some examples, aspects of the operation of 1420 can be determined by referring to... Figures 4 to 7 The described channel selection manager is used to perform this.
[0199] At point 1425, the UE can use the second channel to communicate with the base station. The operation of point 1425 can be performed according to the method described herein. In some examples, aspects of the operation of point 1425 can be derived from, as referenced... Figures 4 to 7 The described channel selection manager is used to perform this.
[0200] Figure 15A flowchart illustrating a method 1500 for channel statistics used in beam management, as explained in support of various aspects of this disclosure, is shown. Operation of method 1500 can be implemented by a base station 105 or its components as described herein. For example, operation of method 1500 can be implemented by, as referred to... Figures 8 to 11 The described communication manager is used to perform these functions. In some examples, the base station can execute a set of instructions to control the functional elements of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described herein.
[0201] At point 1505, the base station may transmit one or more reference signals to the UE for beam management procedures, which are associated with the first channel. Operation of point 1505 may be performed according to the methods described herein. In some examples, aspects of operation of point 1505 may be determined by reference to... Figures 8 to 11 The CSI-RS manager described is used to perform this.
[0202] At point 1510, the base station may receive from the UE a report, based on a beam management procedure, including at least an indication of the received power associated with one or more reference signals and a channel statistics set associated with a first channel. Operation of point 1510 may be performed according to the method described herein. In some examples, aspects of operation of point 1510 may be determined by reference to... Figures 8 to 11 The report manager described is used to perform this.
[0203] At point 1515, the base station can select one or both of a beam and a second channel for communication with the UE based on indications of received power and channel statistics. Operation of point 1515 can be performed according to the method described herein. In some examples, aspects of operation of point 1515 can be determined by reference to [reference needed]. Figures 8 to 11 The selection manager described is used to perform this.
[0204] Figure 16 A flowchart illustrating a method 1600 for channel statistics used in beam management, as supported by various aspects of this disclosure, is shown. Operation of method 1600 can be implemented by a base station 105 or its components as described herein. For example, operation of method 1600 can be implemented by, as referred to... Figures 8 to 11 The described communication manager is used to perform these functions. In some examples, the base station can execute a set of instructions to control the functional elements of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described herein.
[0205] At point 1605, the base station may transmit one or more reference signals to the UE for beam management procedures, which are associated with the first channel. Operation at point 1605 may be performed according to the methods described herein. In some examples, aspects of operation at point 1605 may be determined by reference to... Figures 8 to 11 The CSI-RS manager described is used to perform this.
[0206] At 1610, the base station may receive from the UE a report, based on a beam management procedure, including at least an indication of the received power associated with one or more reference signals and a channel statistics set associated with a first channel. Operation of 1610 may be performed according to the method described herein. In some examples, aspects of the operation of 1610 may be determined by reference to... Figures 8 to 11 The report manager described is used to perform this.
[0207] At point 1615, the base station can select one or both of a beam and a second channel for communication with the UE based on indications of received power and channel statistics. Operation of point 1615 can be performed according to the method described herein. In some examples, aspects of operation of point 1615 can be determined by reference to [reference needed]. Figures 8 to 11 The selection manager described is used to perform this.
[0208] At point 1620, the base station can transmit beam indication to the UE. Operation of point 1620 can be performed according to the method described herein. In some examples, aspects of operation of point 1620 can be determined by referring to... Figures 8 to 11 The described beam selection manager is used to perform this.
[0209] At point 1625, the base station can use a beam to communicate with the UE. Operation of point 1625 can be performed according to the method described herein. In some examples, aspects of operation of point 1625 can be derived from, as referenced... Figures 8 to 11 The described beam selection manager is used to perform this.
[0210] Figure 17 A flowchart illustrating a method 1700 for channel statistics used in beam management, as explained in support of various aspects of this disclosure, is shown. Operation of method 1700 can be implemented by a base station 105 or its components as described herein. For example, operation of method 1700 can be implemented by, as referred to... Figures 8 to 11 The described communication manager is used to perform these functions. In some examples, the base station can execute a set of instructions to control the functional elements of the base station to perform the functions described herein. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described herein.
[0211] At 1705, the base station may transmit one or more reference signals to the UE for beam management procedures, which are associated with the first channel. Operation of 1705 may be performed according to the methods described herein. In some examples, aspects of operation of 1705 may be determined by reference to... Figures 8 to 11 The CSI-RS manager described is used to perform this.
[0212] At 1710, the base station can receive from the UE a report, based on beam management procedures, including at least an indication of the received power associated with one or more reference signals and a channel statistics set associated with a first channel. Operation of 1710 can be performed according to the methods described herein. In some examples, aspects of the operation of 1710 can be determined by reference to... Figures 8 to 11 The report manager described is used to perform this.
[0213] At point 1715, the base station can select one or both of a beam and a second channel for communication with the UE based on indications of received power and channel statistics. Operation of point 1715 can be performed according to the method described herein. In some examples, aspects of operation of point 1715 can be determined by reference to [reference needed]. Figures 8 to 11 The selection manager described is used to perform this.
[0214] At point 1720, the base station may transmit an indication of the second channel to the UE. The operation of point 1720 can be performed according to the method described herein. In some examples, aspects of the operation of point 1720 may be determined by reference to... Figures 8 to 11 The described channel selection manager is used to perform this.
[0215] At point 1725, the base station can use a second channel to communicate with the UE. Operation of point 1725 can be performed according to the method described herein. In some examples, aspects of operation of point 1725 can be derived from, as referenced... Figures 8 to 11 The described channel selection manager is used to perform this.
[0216] The following provides an overview of the various aspects of this disclosure:
[0217] Aspect 1: A method for wireless communication at a UE, comprising: measuring the received power of one or more reference signals for a beam management procedure, the one or more reference signals being associated with a channel;
[0218] The channel statistics set associated with the channel is determined at least in part based on beam management procedures; and
[0219] The report transmitted to the base station includes at least an indication of the received power and a set of channel statistics associated with the channel.
[0220] Aspect 2: The method of aspect 1, wherein transmitting the report includes: transmitting a first indication of received power in a first field of the report, and transmitting a second indication of channel statistics in a second field of the report.
[0221] Aspect 3: The method of Aspect 1, wherein the transmission report includes: determining parameters based at least in part on a combination of received power and channel statistics; and
[0222] Send a report that includes this parameter.
[0223] Aspect 4: The method of aspect 3, wherein the parameter includes at least in part the difference between the combined power and the received power.
[0224] Aspect 5: The method of any one of Aspects 1 to 4 further includes: determining frequency selectivity associated with the channel, wherein the channel statistics set includes frequency selectivity.
[0225] Aspect 6: The method of any one of Aspects 1 to 5 further includes: determining a time selectivity associated with the channel, wherein the channel statistics set includes the time selectivity.
[0226] Aspect 7: The method of any one of Aspects 1 to 6 further includes: determining one or both of frequency correlation and time correlation associated with the channel, wherein the channel statistics set includes one or both of frequency correlation and time correlation.
[0227] Aspect 8: The method of any one of Aspects 1 to 7 further includes: identifying a configuration for transmitting a report that includes at least an indication of received power and a channel statistics set, wherein the channel statistics set is determined at least in part based on the configuration.
[0228] Aspect 9: The method of aspect 8, wherein the configuration is at least partially based on the capabilities of the UE.
[0229] Aspect 10: The method of any one of Aspects 8 to 9 further includes: receiving an instruction on the configuration from a base station.
[0230] Aspect 11: The method of any one of Aspects 8 to 9, wherein the configuration includes the pre-configuration of the UE.
[0231] Aspect 12: The method of any one of Aspects 1 to 11 further includes: performing a channel equalization procedure based at least in part on a channel statistics set.
[0232] Aspect 13: The method of any one of Aspects 1 to 12 further includes: receiving from a base station an indication of a selected beam at least in part based on an indication of received power and channel statistics; and
[0233] Use the selected beam to communicate with the base station.
[0234] Aspect 14: The method of any one of Aspects 1 to 13 further includes: receiving from a base station an indication of a second channel at least partially based on an indication of received power and channel statistics; and
[0235] Use the second channel to communicate with the base station.
[0236] Aspect 15: The method of any one of Aspects 1 to 14, wherein the report includes several bits based at least in part on the received power and channel statistics set.
[0237] Aspect 16: A method for wireless communication at a base station, comprising: transmitting to a UE one or more reference signals for beam management procedures, the one or more reference signals being associated with a first channel;
[0238] The report received from the UE, at least in part, based on beam management procedures, includes an indication of the received power associated with one or more reference signals and a channel statistics set associated with a first channel; and
[0239] The beam and one or both of the second channel are selected for communication with the UE, based at least in part on indications of received power and channel statistics.
[0240] Aspect 17: The method of aspect 16, wherein receiving a report includes: receiving a first indication of received power in a first field of the report, and receiving a second indication of channel statistics in a second field of the report.
[0241] Aspect 18: The method of aspect 16, wherein receiving a report includes receiving a report comprising parameters based at least in part on a combination of received power and channel statistics.
[0242] Aspect 19: The method of aspect 18, wherein the parameter includes at least in part the difference between the combination and the indication of the received power.
[0243] Aspect 20: The method of any one of Aspects 16 to 19, wherein the channel statistics set includes frequency selectivity associated with the first channel.
[0244] Aspect 21: The method of any one of Aspects 16 to 20, wherein the channel statistics set includes time selectivity associated with the first channel.
[0245] Aspect 22: The method of any one of Aspects 16 to 21, wherein the channel statistics set includes one or both of frequency correlation and time correlation associated with the first channel.
[0246] Aspect 23: The method of any one of Aspects 16 to 22 further includes: transmitting to the UE an indication of a configuration, wherein at least a report of an indication of received power and channel statistics is based at least in part on the configuration.
[0247] Aspect 24: The method of any one of Aspects 16 to 23 further includes: transmitting an indication of a beam to the UE; and communicating with the UE using the beam.
[0248] Aspect 25: The method of any one of Aspects 16 to 24 further includes: transmitting an indication of a second channel to the UE; and communicating with the UE using the second channel.
[0249] Aspect 26: 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 a method as described in any one of Aspects 1 to 15.
[0250] Aspect 27: An apparatus for wireless communication at a UE, comprising at least one means for performing a method as described in any one of Aspects 1 to 15.
[0251] Aspect 28: A non-transient computer-readable medium storing code for wireless communication at a UE, the code including instructions executable by a processor to perform methods as described in any of Aspects 1 to 15.
[0252] Aspect 29: 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 method of any one of aspects 16 to 25.
[0253] Aspect 30: An apparatus for wireless communication at a base station, comprising at least one means for performing the method of any one of aspects 16 to 25.
[0254] Aspect 31: A non-transient computer-readable medium storing code for wireless communication at a base station, the code including instructions executable by a processor to perform methods as described in any of Aspects 16 to 25.
[0255] 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 also possible. Furthermore, aspects from two or more methods can be combined.
[0256] 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 also be applied to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques 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.
[0257] The information and signals described herein can be represented using any of a wide variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.
[0258] The various illustrative boxes 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, but in alternatives, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration).
[0259] Computer-readable media includes both non-transient computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transient storage media can be any available medium accessible to a general-purpose or special-purpose computer. By way of example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transient medium that can be used to carry or store desired program code in the form of instructions or data structures and is accessible to a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Similarly, any connection is also legitimately 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 that 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 in this article, disk and disc include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks often magnetically reproduce data while discs optically reproduce data using lasers. Combinations of these media are also included within the scope of computer-readable media.
[0260] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored or transmitted as one or more instructions or code on or through a computer-readable medium. Other examples and implementations fall within the scope and spirit of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions may also be physically located in various locations, including being distributed such that portions of the function are implemented at different physical locations. As used herein (including in the claims), the term “and / or” in a list of two or more items means that any one of the listed items may be employed individually, or any combination of two or more listed items may be employed. For example, if a composition is described as comprising components A, B, and / or C, then the composition may comprise only A; only B; only C; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C. Similarly, as used herein (including in the claims), the “or” used in an item enumeration (e.g., in an item enumeration followed by a phrase such as “at least one of” or “one or more of”) indicates a disjunctive enumeration such that an enumeration such as “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).
[0261] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, components of the same type may be distinguished by a dash following the reference numeral and a second reference numeral used to differentiate between similar components. If only the first reference numeral is used in the description, the description may apply to any of the similar components having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.
[0262] This document, illustrated with reference to the accompanying drawings, describes exemplary configurations but does not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not imply "superior to" or "outperforming" other examples. This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown graphically to avoid obscuring the concepts of the described examples.
[0263] The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the universal principles defined herein can 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 should be granted the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for conducting wireless communication at a user equipment (UE), comprising: Measure the received power of one or more reference signals used in the beam management procedure, the one or more reference signals being associated with the channel; as well as The transmission includes at least a report indicating the received power and a channel statistics set associated with the channel, wherein the channel statistics set is at least partially based on the beam management procedure, and the indication of the received power and the channel statistics set is at least partially based on the sum of a first value associated with the received power and a second value associated with the channel statistics set.
2. The method of claim 1, wherein transmitting the report comprises: The first field of the report transmits a first indication of the received power, and the second field of the report transmits a second indication of the channel statistics set.
3. The method of claim 1, wherein transmitting the report comprises: Determine parameters that are at least partially based on the sum; as well as The report, including the parameters, is transmitted.
4. The method of claim 3, wherein the parameter includes a difference from the first value, the difference being at least partially based on the sum.
5. The method of claim 1, further comprising: Determine the frequency selectivity associated with the channel, wherein the channel statistics set includes the frequency selectivity.
6. The method of claim 1, further comprising: Determine the time selectivity associated with the channel, wherein the channel statistics set includes the time selectivity.
7. The method of claim 1, further comprising: Determine one or both of the frequency correlation and the time correlation associated with the channel, wherein the channel statistics set includes one or both of the frequency correlation and the time correlation.
8. The method of claim 1, further comprising: The identifier is a configuration for transmitting the report, which includes at least an indication of the received power and the channel statistics set, wherein the channel statistics set is determined at least in part based on the configuration.
9. The method of claim 8, wherein the configuration is at least in part based on the capabilities of the UE.
10. The method of claim 8, further comprising: Receive instructions regarding the configuration.
11. The method of claim 8, wherein the configuration includes the pre-configuration of the UE.
12. The method of claim 1, further comprising: The channel equalization procedure is performed at least in part based on the aforementioned channel statistics set.
13. The method of claim 1, further comprising: The received signal is based at least in part on the indication of the received power and the channel statistics set for the selected beam. as well as Use the selected beam to communicate with network nodes.
14. The method of claim 1, further comprising: Receive an indication of a second channel based at least in part on an indication of the received power and the channel statistics set; as well as Use the second channel to communicate with network nodes.
15. The method of claim 1, wherein the report comprises at least a number of bits based in part on the received power and the channel statistics set.
16. A method for wireless communication at a network node, comprising: Transmit one or more reference signals for beam management procedures, the one or more reference signals being associated with a first channel; The beam management procedure is at least partially based on receiving a report that includes at least an indication of the received power associated with the one or more reference signals and a channel statistics set associated with the first channel, wherein the report is at least partially based on the sum of a first value associated with the received power and a second value associated with the channel statistics set; as well as The beam and one or both of the second channel are selected for communication with the user equipment (UE) based at least in part on the indication of the received power and the channel statistics set.
17. The method of claim 16, wherein receiving the report comprises: A first indication of the received power is received in a first field of the report, and a second indication of the channel statistics set is received in a second field of the report.
18. The method of claim 16, wherein receiving the report comprises: Receive the report, which includes parameters based at least in part on the sum.
19. The method of claim 18, wherein the parameter includes a difference from the first value, the difference being at least partially based on the sum.
20. The method of claim 16, wherein the channel statistics set includes frequency selectivity associated with the first channel.
21. The method of claim 16, wherein the channel statistics set includes time selectivity associated with the first channel.
22. The method of claim 16, wherein the channel statistics set includes one or both of frequency correlation and time correlation associated with the first channel.
23. The method of claim 16, further comprising: The transmission of instructions on the configuration, including at least the report on the instructions for the received power and the channel statistics set, is at least partially based on the configuration.
24. The method of claim 16, further comprising: Transmit instructions for the beam; as well as The beam is used to communicate with the UE.
25. The method of claim 16, further comprising: Transmit an instruction to the second channel; as well as The second channel is used to communicate with the UE.
26. An apparatus for conducting wireless communication at a user equipment (UE), comprising: A means for measuring the received power of one or more reference signals used in beam management procedures, the one or more reference signals being associated with a channel; as well as A means for transmitting a report including at least an indication of received power and a channel statistics set associated with the channel, wherein the channel statistics set is at least partially based on the beam management procedure, and the indication of the received power and the channel statistics set is at least partially based on the sum of a first value associated with the received power and a second value associated with the channel statistics set.
27. The apparatus of claim 26, wherein the means for transmitting the report comprises: A means for transmitting a first indication of the received power in a first field of the report and a second indication of the channel statistics set in a second field of the report.
28. The apparatus of claim 26, wherein the means for transmitting the report comprises: A means for determining parameters based at least in part on the sum; as well as A means for transmitting the report including the parameters.
29. An apparatus for wireless communication at a network node, comprising: A means for transmitting one or more reference signals for beam management procedures, the one or more reference signals being associated with a first channel; A means for receiving, at least in part based on the beam management procedure, a report including an indication of received power associated with the one or more reference signals and a channel statistics set associated with the first channel, wherein the report is at least in part based on the sum of a first value associated with the received power and a second value associated with the channel statistics set; as well as A means for selecting one or both of a beam and a second channel for communication with a user equipment (UE) based at least in part on an indication of the received power and the channel statistics set.
30. The apparatus of claim 29, wherein the means for receiving the report comprises: A means for receiving a first indication of the received power in a first field of the report and a second indication of the channel statistics set in a second field of the report.
31. An apparatus for wireless communication by a user equipment (UE), comprising: Memory; as well as At least one processor coupled to the memory, wherein the at least one processor is configured to: Measure the received power of one or more reference signals used in the beam management procedure, said one or more reference signals being associated with the channel; and The transmission includes at least a report indicating the received power and a channel statistics set associated with the channel, wherein the channel statistics set is at least partially based on the beam management procedure, and the indication of the received power and the channel statistics set is at least partially based on the sum of a first value associated with the received power and a second value associated with the channel statistics set.
32. The apparatus of claim 31, wherein, in order to transmit the report, the at least one processor is configured to: The first field of the report transmits a first indication of the received power, and the second field of the report transmits a second indication of the channel statistics set.
33. The apparatus of claim 31, wherein, in order to transmit the report, the at least one processor is configured to: Determine parameters based at least in part on the sum; and The report, including the parameters, is transmitted.
34. The apparatus of claim 33, wherein the parameter includes a difference from the first value, the difference being at least partially based on the sum.
35. The apparatus of claim 31, wherein the at least one processor is further configured to: Determine the frequency selectivity associated with the channel, wherein the channel statistics set includes the frequency selectivity.
36. The apparatus of claim 31, wherein the at least one processor is further configured to: Determine the time selectivity associated with the channel, wherein the channel statistics set includes the time selectivity.
37. The apparatus of claim 31, wherein the at least one processor is further configured to: Determine one or both of the frequency correlation and the time correlation associated with the channel, wherein the channel statistics set includes one or both of the frequency correlation and the time correlation.
38. The apparatus of claim 31, wherein the at least one processor is further configured to: The identifier is a configuration for transmitting the report, which includes at least an indication of the received power and the channel statistics set, wherein the channel statistics set is determined at least in part based on the configuration.
39. The apparatus of claim 38, wherein the configuration is at least in part based on the capabilities of the UE.
40. The apparatus of claim 38, wherein the at least one processor is further configured to: Receive instructions regarding the configuration.
41. The apparatus of claim 38, wherein the configuration includes a pre-configuration of the UE.
42. The apparatus of claim 31, wherein the at least one processor is further configured to: The channel equalization procedure is performed at least in part based on the aforementioned channel statistics set.
43. The apparatus of claim 31, wherein the at least one processor is further configured to: Receiving an indication of a selected beam based at least in part on an indication of the received power and the channel statistics set; and Use the selected beam to communicate with network nodes.
44. The apparatus of claim 31, wherein the at least one processor is further configured to: Receive an indication of a second channel based at least in part on an indication of the received power and the channel statistics set; and Use the second channel to communicate with network nodes.
45. The apparatus of claim 31, wherein the report comprises at least a number of bits based in part on the received power and the channel statistics set.
46. An apparatus for wireless communication by a network node, comprising: Memory; as well as At least one processor coupled to the memory, wherein the at least one processor is configured to: Transmit one or more reference signals for beam management procedures, the one or more reference signals being associated with a first channel; The beam management procedure is at least partially based on receiving a report that includes at least an indication of the received power associated with the one or more reference signals and a channel statistics set associated with the first channel, wherein the report is at least partially based on the sum of a first value associated with the received power and a second value associated with the channel statistics set; as well as The beam and one or both of the second channel are selected for communication with the user equipment (UE) based at least in part on the indication of the received power and the channel statistics set.
47. The apparatus of claim 46, wherein, in order to receive the report, the at least one processor is configured to: A first indication of the received power is received in a first field of the report, and a second indication of the channel statistics set is received in a second field of the report.
48. The apparatus of claim 46, wherein, in order to receive the report, the at least one processor is configured to: Receive the report, which includes parameters based at least in part on the sum.
49. The apparatus of claim 48, wherein the parameter includes a difference from the first value, the difference being at least partially based on the sum.
50. The apparatus of claim 46, wherein the channel statistics set includes frequency selectivity associated with the first channel.
51. The apparatus of claim 46, wherein the channel statistics set includes time selectivity associated with the first channel.
52. The apparatus of claim 46, wherein the channel statistics set includes one or both of frequency correlation and time correlation associated with the first channel.
53. The apparatus of claim 46, wherein the at least one processor is further configured to: The transmission of instructions on the configuration, including at least the report on the instructions for the received power and the channel statistics set, is at least partially based on the configuration.
54. The apparatus of claim 46, wherein the at least one processor is further configured to: Transmitting instructions for the beam; and The beam is used to communicate with the UE.
55. The apparatus of claim 46, wherein the at least one processor is further configured to: Transmit an instruction to the second channel; and The second channel is used to communicate with the UE.
Citation Information
Patent Citations
Measuring method and apparatus of link between communication nodes
CN108631891A
UE, network node and methods therein for beam reporting in a wireless communication system
WO2019022657A1