Dynamic mixed-mode beamforming in the upper millimeter-wave frequency band

Abstract

Methods, systems, and devices for wireless communications are described. A first device may indicate a dynamic beam correspondence operation for communication with a second device. For example, for certain transmission configuration indication (TCI) states, time-dependent TCI states, and the like, a dynamic beam correspondence operation may be declared in a time-dependent manner. Additionally or alternatively, the first device may declare the absence of a beam correspondence and the associated power savings and thermal reductions resulting from the lack of a beam correspondence. Subsequently, based on the dynamic beam correspondence operation, the second device may identify parameters (e.g., which TCI states, subarrays, etc.) for use by the first device for different modes or processes (e.g., at corresponding times) based on parameters corresponding to a full beam correspondence or no beam correspondence. For example, parameters may be used for initial access, beam failure recovery, low power mode, high temperature mode, and the like.

Description

[0001] Cross-references

[0002] This patent application claims the benefits of the following applications: U.S. patent application No. 17 / 157,915, filed by RAGHAVAN et al. on January 25, 2021, entitled “DYNAMIC MIXED MODE BEAM CORRESPONDENCE IN UPPER MILLIMETER WAVE BANDS”; and U.S. Provisional Patent Application No. 62 / 966,532, filed by RAGHAVAN et al. on January 27, 2020, entitled “DYNAMIC MIXED MODE BEAM CORRESPONDENCE IN UPPER MILLIMETER WAVE BANDS”; each of these applications is assigned to the assignee of this application. Technical Field

[0003] The following relates to wireless communications, and more particularly, the following relates to dynamic beam mapping. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcasting, etc. 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 (e.g., long term evolution (LTE) systems, improved LTE (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 may use technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA) or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include multiple base stations or network access nodes, each of which simultaneously supports communication for multiple communication devices (which may be referred to as user equipment (UE)). Summary of the invention

[0005] A method of wireless communication at a first device is described. The method may include: sending a capability to a second device indicating a status for a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communications with the second device, and the second set of antenna elements being used for uplink communications with the second device. In some cases, the method may then include: receiving from the second device an indication of an operating mode to be used for communications with the second device, the operating mode being based on the capability; and communicating with the second device based on the received indication of the operating mode.

[0006] An apparatus for wireless communication at a first device is described. The apparatus may include a processor and a memory coupled to the processor, the processor and the memory being configured to: send a capability to a second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. In some cases, the processor and the memory may then be configured to: receive from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the capability; and communicate with the second device based on the received indication of the operating mode.

[0007] Another apparatus for wireless communication at a first device is described. The apparatus may include means for sending a capability to a second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. In some cases, the apparatus may then include means for receiving from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the capability; and communicating with the second device based on the received indication of the operating mode.

[0008] A non-transitory computer-readable medium storing code for wireless communication at a first device is described. The code may include instructions executable by a processor to: send a capability to a second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. In some cases, the code may then include instructions executable by the processor to: receive from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the capability; and communicate with the second device based on the received indication of the operating mode.

[0009] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the capability may include operations, features, units, or instructions for performing the following operations: sending a time-related state for the dynamic beam correspondence with the second device to the second device.

[0010] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the time-related state for the dynamic beam correspondence may include: an indication of a beam correspondence for a first transmission time interval (TTI), an indication that no beam correspondence exists for a second TTI, or a combination thereof.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the time-dependent state may indicate a beam correspondence capability that changes for different TTIs.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the different TTIs may include different symbols, time slots, or subframes.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the capability may include operations, features, units, or instructions for performing the following operations: sending a first indication of a beam correspondence for one or more first transmission configuration indication (TCI) states to the second device, a second indication of the absence of a beam correspondence for one or more second TCI states, or a combination thereof.

[0014] In some examples of methods, apparatus, and non-transitory computer-readable media described herein, the first indication of a beam correspondence, the second indication of an absence of a beam correspondence, or both may be time-dependent.

[0015] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the capability may include operations, features, units, or instructions for performing the following operations: sending an indication to the second device that there is no beam correspondence; and sending to the second device a power savings, a reduction in temperature or temperature gradient, or both for the communication with the second device, wherein the power savings, the reduction in temperature or temperature gradient, or both are caused by the lack of beam correspondence.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the indication of the operating mode may include operations, features, units, or instructions for performing the following operations: receiving an indication of using one or more TCI states, one or more subarrays, or a combination thereof from the second device, wherein the one or more TCI states, the one or more subarrays, or a combination thereof may have a full beam correspondence for the communication with the second device.

[0017] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more TCI states, the one or more subarrays, or a combination thereof may be used for an initial access procedure, for a beam failure recovery procedure, or both.

[0018] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more TCI states, the one or more subarrays, or a combination thereof can be used for a low power mode, a high temperature or temperature gradient mode, or both.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the full beam correspondence includes the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams that can be used for the communication with the second device.

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the capability indicating the status for dynamic beam correspondence with the second device may include a hybrid beam correspondence mode operation indication.

[0021] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the communication with the second device may occur at a frequency that may be greater than 24.25 gigahertz (GHz).

[0022] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first device may be a UE or customer premises equipment (CPE) in a wireless communication system, and the second device may be a base station, CPE, relay device, router, repeater, or integrated access and backhaul (IAB) node in the wireless communication system.

[0023] A method of wireless communication at a second device is described. The method may include receiving, from a first device in communication with the second device, a capability indicating a state of a dynamic beam correspondence between the first device and the second device. Additionally, the method may include sending, to the first device, an indication of an operating mode to be used for communication with the second device, the operating mode being based at least in part on the received capability. In some cases, the method may also include communicating with the first device based on the sent indication of the operating mode.

[0024] An apparatus for wireless communication at a second device is described. The apparatus may include a processor and a memory coupled to the processor, the processor and the memory being configured to receive, from a first device in communication with the second device, a capability indicating a state of a dynamic beam correspondence between the first device and the second device. Additionally, the processor and the memory may be configured to send, to the first device, an indication of an operating mode to be used for communication with the second device, the operating mode being based at least in part on the received capability. In some cases, the processor and the memory may also be configured to communicate with the first device based on the sent indication of the operating mode.

[0025] Another apparatus for wireless communication at a second device is described. The apparatus may include means for receiving, from a first device in communication with the second device, a capability indicating a state of a dynamic beam correspondence between the first device and the second device. Additionally, the apparatus may include means for sending, to the first device, an indication of an operating mode to be used for communication with the second device, the operating mode being based at least in part on the received capability. In some cases, the apparatus may also include means for communicating with the first device based on the sent indication of the operating mode.

[0026] A non-transitory computer-readable medium storing code for wireless communication at a second device is described. The code may include instructions executable by a processor to receive, from a first device in communication with the second device, capabilities indicating a state of a dynamic beam correspondence between the first device and the second device. Additionally, the code may include instructions executable by the processor to send, to the first device, an indication of an operating mode to be used for communication with the second device, the operating mode being based at least in part on the received capabilities. In some cases, the code may also include instructions executable by the processor to communicate with the first device based on the sent indication of the operating mode.

[0027] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the capability may include operations, features, units, or instructions for performing the following operations: receiving a time-related state for the dynamic beam correspondence between the first device and the second device from the first device, the time-related state indicating a beam correspondence capability that changes for different TTIs.

[0028] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the time-related state for the dynamic beam correspondence may include: an indication of a beam correspondence for a first TTI, an indication that no beam correspondence exists for a second TTI, or a combination thereof.

[0029] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the time-dependent state may indicate a beam correspondence capability that changes for different TTIs.

[0030] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the different TTIs may include different symbols, time slots, or subframes.

[0031] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the capability may include operations, features, units, or instructions for performing the following operations: receiving from the first device a first indication of a beam correspondence for one or more first TCI states, a second indication that a beam correspondence for one or more second TCI states does not exist, or a combination thereof.

[0032] In some examples of methods, apparatus, and non-transitory computer-readable media described herein, the first indication of a beam correspondence, the second indication of an absence of a beam correspondence, or both may be time-dependent.

[0033] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, receiving the capability may include operations, features, units, or instructions for performing the following operations: receiving an indication from the first device that there is no beam correspondence; and receiving from the first device a power savings, a reduction in temperature or temperature gradient, or both for the communication with the first device, wherein the power savings, the reduction in temperature or temperature gradient, or both are due to the lack of beam correspondence.

[0034] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, sending the indication of the operating mode may include operations, features, units, or instructions for performing the following operations: sending an indication to the first device to use one or more TCI states, one or more subarrays, or a combination thereof, wherein the one or more TCI states, the one or more subarrays, or a combination thereof may have a full beam correspondence for the communication with the second device.

[0035] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more TCI states, the one or more subarrays, or a combination thereof may be used for an initial access procedure, for a beam failure recovery procedure, or both.

[0036] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the one or more TCI states, the one or more subarrays, or a combination thereof can be used for a low power mode, a high temperature or temperature gradient mode, or both.

[0037] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the full beam correspondence may include the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams that can be used for the communication with the first device.

[0038] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the capability indicating the status for dynamic beam correspondence with the second device may include a hybrid beam correspondence mode operation indication.

[0039] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the communication with the first device may occur at a frequency that may be greater than 24.25 GHz.

[0040] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, the first device may be a UE or a CPE in a wireless communication system, and the second device may be a base station, a CPE, a relay device, a router, a repeater, or an IAB node in the wireless communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 An example of a system for wireless communications supporting dynamic mixed-mode beam mapping in the upper millimeter wave (mmW) frequency band in accordance with aspects of the present disclosure is shown.

[0042] Figure 2 An example of a wireless communication device with multiple antenna arrays supporting dynamic mixed-mode beam mapping in the upper mmW band in accordance with aspects of the present disclosure is shown.

[0043] Figure 3 An example of a wireless communication system supporting dynamic mixed-mode beam correspondence in the upper mmW band according to aspects of the present disclosure is shown.

[0044] Figure 4 An example of a process flow supporting dynamic mixed-mode beam correspondence in the upper mmW band in accordance with aspects of the present disclosure is shown.

[0045] Figure 5 and Figure 6 A block diagram of a device supporting dynamic mixed-mode beam correspondence in upper mmW bands according to aspects of the present disclosure is shown.

[0046] Figure 7 A block diagram of a first device communication manager supporting dynamic mixed-mode beam correspondence in an upper mmW band is shown in accordance with aspects of the present disclosure.

[0047] Figure 8 A diagram of a system including a device supporting dynamic mixed-mode beam mapping in the upper mmW band is shown in accordance with aspects of the present disclosure.

[0048] Fig. 9 and Fig.10 A block diagram of a device supporting dynamic mixed-mode beam correspondence in upper mmW bands according to aspects of the present disclosure is shown.

[0049] Fig.11 A block diagram of a second device communication manager supporting dynamic mixed-mode beam correspondence in an upper mmW band is shown in accordance with aspects of the present disclosure.

[0050] Fig.12A diagram of a system including a device supporting dynamic mixed-mode beam mapping in the upper mmW band is shown in accordance with aspects of the present disclosure.

[0051] Figures 13 to 18 A flow chart illustrating a method of supporting dynamic mixed-mode beam correspondence in upper mmW bands according to aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0052] In some deployments, wireless communication systems may operate in the mmW frequency range (e.g., 24 GHz, 26 GHz, 28 GHz, 39 GHz, 52.6-71 GHz, etc.). Wireless communication at these frequencies may be associated with increased signal attenuation (e.g., path loss, penetration loss, blocking loss), which may be affected by various factors, such as diffraction, propagation environment, blocking density, material properties, etc. Therefore, signal processing techniques (such as beamforming) can be used to coherently combine energy and overcome path losses at these frequencies. Due to the increased amount of path, penetration, and blocking losses in mmW communication systems, transmissions between wireless devices (e.g., base stations, UEs, or other types of wireless devices) may be beamformed. In addition, a receiving device may use beamforming techniques to configure an antenna, an antenna array, an antenna array module, or a combination thereof to receive transmissions in a directional manner.

[0053] In some deployments, communications in mmW frequencies may utilize so-called frequency range 2 (FR2), which corresponds to deployments in 24 GHz, 24.25 GHz, 26 GHz, 28 GHz, 39 GHz, etc. As demand for wireless communications increases, additional mmW frequencies may be desired for some deployments, such as frequency range 4 (FR4) (e.g., or upper mmW bands), which may be associated with higher frequencies than FR2 deployments (e.g., 52.6 GHz and above). In many FR2 deployments, wireless devices use antenna modules, and the antenna modules may include multiple antenna elements, such as, for example, an array of four antenna elements per module in a 4x1 array arrangement or a different array arrangement with a different number of antenna elements. Additionally or alternatively, the upper mmW bands (e.g., higher frequencies than those used for FR2) may have shorter wavelengths, such that more antenna elements may be placed in the same physical aperture in FR4 compared to FR2 (e.g., antennas or antenna elements for higher frequencies are shorter to match the shorter wavelengths, resulting in a greater number of smaller antenna elements being able to be placed in the antenna module or physical aperture). For example, a FR4 device may have multiple antenna modules, each containing four 4x4 subarrays or a different array arrangement with a different number of antenna elements (e.g., greater than the number of antennas used for lower frequencies such as FR2). In some cases, different possible combinations of antenna elements across subarrays within an antenna module or across antenna modules may be used and managed by a wireless device (e.g., a UE).

[0054] In some examples, the UE may use the same set of antenna elements for both sending uplink messages to the base station and receiving downlink messages from the base station, where the same set of antenna elements may correspond to a single beam that is considered to have a full beam correspondence. Additionally or alternatively, different antenna element arrays or subarrays may be used for downlink and for uplink communications, thereby affecting the beam correspondence (e.g., based on the antenna elements used for each of the uplink and downlink communications being located in different areas of the entire antenna array, the beam used for downlink communications may not point in the same direction as the beam used for uplink communications). Additionally, based on the larger number of antenna panels and elements used in FR4, different subarrays may be significantly different. Therefore, beam training may be performed separately for both the uplink and downlink, thereby doubling the beam training overhead (e.g., doubling the amount of signaling used to determine which beams are used for which transmission direction).

[0055] Additionally or alternatively, based on using different antenna element arrays / subarrays for downlink and uplink communications, the UE (or any other device communicating using mmW frequencies) may send a static indication (e.g., a single bit indicating capability or support or not) as to whether the UE has the capability to perform beam correspondence. However, by communicating in FR4 and using different antenna element arrays or subarrays, beam correspondence may be available in some scenarios (e.g., in certain TTIs, for certain TCI states, for certain beams, etc.), and thus beam correspondence may not be just a "yes" or "no" indication. The beam correspondence support capability may be considered partial, and therefore, new signaling may be required to signal the partial capability and how to quantify the capability.

[0056] As described herein, a UE (e.g., or any other device that communicates using mmW, referred to as a first wireless device) may indicate a dynamic beam correspondence (e.g., hybrid beam correspondence mode operation, hybrid mode beam correspondence, dynamic hybrid mode beam correspondence, etc.) for communication with a base station (e.g., or any other device that communicates using mmW, referred to as a second device or second wireless device). In some cases, the dynamic beam correspondence may include different definitions or be declared in different ways. For example, the UE may declare a dynamic beam correspondence, where the dynamic beam correspondence includes a beam correspondence or a lack of a beam correspondence in a time-dependent manner (e.g., the presence of a beam correspondence changes for different time instances or different TTIs (such as different symbols, time slots, subframes, etc.) Additionally or alternatively, the UE may declare dynamic beam correspondences, where the dynamic beam correspondences include beam correspondences for some TCI states (e.g., which map to certain uplink or downlink antenna element subarrays, different sets of antenna elements, different sets of beam weights, etc.), and do not include beam correspondences for other TCI states (e.g., TCI states may be considered similar to beams created by corresponding sets of antenna elements or sets of beam weights, beam indices, etc.).

[0057] In some cases, the declaration of the presence, absence, or both of beam correspondence for corresponding TCI states may also be declared in a time-dependent manner (e.g., beam correspondence exists for a first set of antenna elements at a first moment, such as time t0; beam correspondence exists for a second set of antenna elements at a second moment, such as time t1; beam correspondence does not exist for the first set of antenna elements at the second moment, etc.). Additionally or alternatively, the UE may declare the absence of beam correspondence (e.g., for certain TCI states, different sets of antenna elements, different sets of beam weights, at certain time instances, in different TTIs, or a combination thereof), and the associated power savings and thermal reduction (e.g., temperature or temperature gradient reduction) for downlink-uplink operations due to the lack of beam correspondence.

[0058] Subsequently, based on the dynamic beam correspondence, the base station can identify which TCI states (e.g., beam weight sets, beams, beam indices, etc.), antenna subarrays (e.g., antenna element sets), etc. (e.g., operating modes) the base station wants the UE to use for different modes or processes based on which TCI states, subarrays, etc. correspond to the full beam correspondence (e.g., for different times, TTIs, etc.). For example, TCI states, subarrays, etc. corresponding to the full beam correspondence (e.g., operating modes) can be used for initial access, beam failure recovery, etc. In addition, the base station can identify and instruct the UE to use certain TCI states, subarrays, etc. with hybrid beam correspondence or without beam correspondence (e.g., operating modes) for low power mode, high temperature or temperature gradient mode, etc.

[0059] Aspects of the present disclosure are first described in the context of a wireless communication system. In addition, aspects of the present disclosure are illustrated by wireless communication devices having multiple antenna arrays, additional wireless communication systems, and process flows. Aspects of the present disclosure are further illustrated by apparatus diagrams, system diagrams, and flow diagrams involving dynamic hybrid mode beam correspondence in the upper mmW band, and are described with reference to these diagrams.

[0060] Figure 1An example of a wireless communication system 100 supporting dynamic mixed mode beam correspondence in the upper mmW band according to various aspects of the present disclosure is shown. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be 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 communications, ultra-reliable (e.g., mission-critical) communications, low-latency communications, or communications with low-cost and low-complexity devices, or any combination thereof.

[0061] Base stations 105 may be dispersed throughout a geographic area to form wireless communication system 100, and may be devices of different forms or capabilities. Base stations 105 and UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which UEs 115 and base stations 105 may establish one or more communication links 125. Coverage area 110 may be an example of a geographic area over which base stations 105 and UEs 115 may support transmission of signals according to one or more radio access technologies.

[0062] UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary, mobile, or both at different times. UEs 115 may be devices of different forms or with different capabilities. Figure 1 Some example UEs 115 are shown in FIG. 1. The UEs 115 described herein can communicate with various types of devices, such as other UEs 115, base stations 105, or network devices (e.g., core network nodes, relay devices, repeater devices, CPE, IAB nodes, router devices, or other network devices), such as Figure 1 shown.

[0063] The base stations 105 may communicate with the core network 130, or communicate with each other, or perform both of the above operations. For example, the base station 105 may be connected to the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3 or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) on the backhaul link 120 (e.g., via X2, Xn or other interfaces), or communicate with each other indirectly (e.g., via the core network 130), or perform both of the above operations. In some examples, the backhaul link 120 may be or include one or more wireless links. In some examples, one or more base stations 105 may provide a backhaul connection between another base station 105 and the core network 130 via a backhaul link 160 while acting as an IAB node.

[0064] One or more of the base stations 105 described herein may include or may be referred to by those skilled in the art as a base station transceiver, a radio base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or some other appropriate terminology.

[0065] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other appropriate terminology, where a "device" may also be referred to as a unit, a station, a terminal, or a client, among other examples. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, among other examples, which may be implemented in various items such as appliances, or vehicles, meters, and among other examples.

[0066] The UE 115 described herein is capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as repeaters, routers, or CPE, as well as base stations 105 and network devices, including macro eNBs or gNBs, small cell eNBs or gNBs, IAB nodes or relay base stations, and other examples, such as Figure 1 shown.

[0067] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates 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 to coordinate operations for the carrier, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used with both frequency division duplex (FDD) component carriers and time division duplex (TDD) component carriers.

[0068] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in FDD mode) or may be configured to carry both downlink and uplink communications (e.g., in TDD mode).

[0069] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a number of determined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)). Devices of the wireless communication system 100 (e.g., base stations 105, UEs 115, or both) may have a hardware configuration that supports communication on a carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., subband, BWP) or all of a carrier bandwidth.

[0070] The signal waveform transmitted on the carrier may be composed of multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or DFT-S-OFDM). In a system employing MCM techniques, a resource element may be composed of a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, wherein the symbol period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Therefore, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate for UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communication with UE 115.

[0071] The basic time unit (which may be referred to as T s =1 / (Δf max ·N f ) seconds sampling period, where Δf max It can represent the maximum supported subcarrier spacing, and N f The time intervals for the base station 105 or the UE 115 may be expressed as multiples of a maximum supported discrete Fourier transform (DFT) size). The time intervals of the communication resources may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0072] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of 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 a number of symbol periods (e.g., depending on the length of a cyclic prefix added in front of each symbol period). In some wireless communication systems 100, a time slot may be further divided into a plurality of micro-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0073] A subframe, a time slot, a mini-time slot, or a symbol may be a minimum scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a TTI. In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the minimum scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in the form of a burst of shortened TTIs (sTTIs)).

[0074] Physical channels may be multiplexed on a carrier according to various techniques. For example, one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique may be used to multiplex physical control channels and physical data channels on a downlink carrier. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by the number of symbol periods and may extend across the system bandwidth of a carrier or a subset of the system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a group of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates at one or more aggregation levels arranged in a cascaded manner. The aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with the coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0075] In some examples, base stations 105 may be mobile and, therefore, provide communication coverage for 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. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for respective geographic coverage areas 110 using the same or different radio access technologies.

[0076] Some UEs 115 (e.g., MTC or IoT devices) may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a human interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, climate and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business billing.

[0077] The wireless communication system 100 can be configured to support ultra-reliable communication or low-latency communication, or various combinations thereof. For example, the wireless communication system 100 can be configured to support ultra-reliable low-latency communication (URLLC) or mission-critical communication. UE115 can be designed to support ultra-reliable, low-latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication can include private communication or group communication, and can be supported by one or more mission-critical services (such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions can include prioritization of services, and mission-critical services can be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission-critical, and ultra-reliable low-latency can be used interchangeably in this article.

[0078] In some examples, UE 115 is 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 UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some examples, groups of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving the base station 105.

[0079] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these items. Vehicles can use signals to send information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in a V2X system can communicate with roadside infrastructure (such as roadside units), or communicate with a network via one or more network nodes (e.g., base station 105) using vehicle-to-network (V2N) communication, or both.

[0080] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function unit (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function unit (UPF)) for routing packets to an external network or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management for UE 115 served by a base station 105 associated with the core network 130. User IP packets may be transmitted through a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. Operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0081] Some of the network devices (e.g., base stations 105) may include subcomponents such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with the UE 115 through one or more other access network transport entities 145 (which may be referred to as radio heads, smart radio heads, or transmit / receive points (TRPs)). 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 heads and ANCs) or merged into a single network device (e.g., base station 105).

[0082] The wireless communication system 100 may operate using one or more frequency bands (in the range of 300 MHz to 300 GHz). The region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength ranges from approximately one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features, but the waves may be sufficient to penetrate structures for macro cells to provide services to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter distances (e.g., less than 100 kilometers) compared to transmission of smaller frequencies and longer waves using the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0083] The wireless communication system 100 may also operate in a super high frequency (SHF) region using a frequency band from 3 GHz to 30 GHz (also referred to as a centimeter band) or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) (also referred to as a millimeter band). In some examples, the wireless communication system 100 may support mmW communications between UE 115 and base station 105, and the EHF antennas of the corresponding devices may be even smaller and more closely spaced than UHF antennas. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer from even greater atmospheric attenuation and shorter distances than SHF or UHF transmissions. The technology disclosed herein may be employed across transmissions using one or more different frequency regions, and the designated use of frequency bands across these frequency regions may differ according to countries or regulatory agencies.

[0084] The wireless communication system 100 can utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 can employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) can employ carrier sensing for conflict detection and avoidance. In some examples, operations in unlicensed bands can be based on a carrier aggregation configuration in combination with component carriers operating in a licensed band (e.g., LAA). Operations in the unlicensed spectrum can include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, as well as other examples.

[0085] The base station 105 or UE 115 may be equipped with multiple antennas, which may be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels (which may support MIMO operations or transmit or receive beamforming). For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having a number of rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals sent via the antenna ports.

[0086] The base station 105 or UE 115 can use MIMO communication to exploit multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. For example, a transmitting device may send 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 for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) (where multiple spatial layers are sent to the same receiving device) and multi-user MIMO (MU-MIMO) (where multiple spatial layers are sent to multiple devices).

[0087] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to form or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array so that some signals propagating in a specific orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals transmitted via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of the antenna elements may be defined by a set of beamforming weights associated with a specific orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0088] As part of the beamforming operation, the base station 105 or the UE 115 may use beam scanning techniques. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communications with the UE 115. The base station 105 may send some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) multiple times in different directions. For example, the base station 105 may send signals based on different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or by a receiving device (such as the UE 115)) to identify a beam direction for subsequent transmission or reception by the base station 105.

[0089] Base station 105 may transmit some signals (e.g., data signals associated with a particular receiving device (e.g., UE 115)) in a single beam direction (e.g., a direction associated with the receiving device). In some examples, the beam direction associated with transmission along the single beam direction may be determined based on signals transmitted in one or more beam directions. For example, UE 115 may receive one or more of the signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signal received by UE 115 having the highest signal quality or otherwise acceptable signal quality.

[0090] In some examples, transmissions by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may generate a combined beam for transmission (e.g., from the base station 105 to the UE 115) using a combination of digital precoding or radio frequency beamforming. The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may send reference signals (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)) that may or may not be precoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type of codebook, a linear combination type of codebook, a port selection type of codebook). Although these techniques are described with reference to signals sent by base station 105 in one or more directions, UE 115 may employ similar techniques to send signals multiple times in different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115) or to send signals in a single direction (e.g., to send data to a receiving device).

[0091] When receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from the base station 105, the receiving device (e.g., UE 115) can try multiple reception configurations (e.g., directional listening). For example, the receiving device can try multiple reception directions by receiving via different antenna subarrays, by processing the received signals according to different antenna subarrays, by receiving according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets), or by processing the received signals according to different reception beamforming weight sets applied to the signals received at multiple antenna elements of the antenna array (any of the above operations may be referred to as "listening" according to different reception configurations or reception directions). In some examples, the receiving device can use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may 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, the highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions). In some cases, the above-described techniques for identifying a beam for communication between two wireless devices (e.g., such as between UE 115 and base station 105) may be part of a beam training process.

[0092] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified with the frequency range names FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that FR1 is often (interchangeably) referred to as the “sub-6 GHz” band in various documents and articles, even though a portion of FR1 is greater than 6 GHz. A similar naming issue sometimes arises with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, even though it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz), which is identified as a “millimeter wave” band by the International Telecommunication Union (ITU).

[0093] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified an operating band for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz–24.25 GHz). Frequency bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and may therefore effectively extend the characteristics of FR1 and / or FR2 to mid-band frequencies. Additionally, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as the frequency range designations FR4-a or FR4–1 (52.6 GHz–71 GHz), FR4 (52.6 GHz–114.25 GHz), and FR5 (114.25 GHz–300 GHz). Each of these higher frequency bands falls within the EHF band.

[0094] In view of the above, unless otherwise specifically stated, it should be understood that if the term "sub-6 GHz" or the like is used herein, it can be broadly referred to as a frequency that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, it can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band.

[0095] UE 115 may include one or more antenna modules (which may include a relatively large number of antenna elements for mmW communications) and may be an example of a first device (e.g., a first wireless device) as discussed herein. The UE communication manager 101 may manage mmW communications and, in some cases, may identify a first set of antenna elements for downlink communications with a second device (e.g., a base station 105) and a second set of antenna elements for uplink communications with the second device. The UE communication manager 101 may then determine and send a capability (e.g., in a capability field) indicating a state of a dynamic mixed-mode beam correspondence (e.g., a dynamic beam correspondence) with the second device based on the different antenna elements used for downlink and uplink communications. Subsequently, the UE communication manager 101 may receive an indication of an operating mode to be used for communications with the second device based on the capability.

[0096] For example, a capability (e.g., a dynamic beam correspondence indication) may indicate a time-dependent beam correspondence for the first device, a static or semi-static beam correspondence for certain TCI states (e.g., for certain beams, for certain beam weights, for certain antenna element sets, etc.), a time-dependent (across symbols, slots, mini-slots, subframes, etc.) beam correspondence for certain TCI states. Additionally or alternatively, a capability may indicate the absence of a beam correspondence and the associated power savings and thermal reduction (not quantized or quantized to an appropriate level) due to the lack of a beam correspondence. Thus, the operating mode may instruct the UE communication manager 101 (e.g., and the first device) to perform different processes with the second device using certain TCI states, antenna subarrays, antenna elements, beams, etc. For example, the operating mode may indicate a specific configuration for use by the UE communication manager 101 at certain times corresponding to a full beam correspondence (such as an initial access process, a beam failure recovery process, etc.). Additionally or alternatively, the operating mode may instruct the UE communication manager 101 to use a certain configuration (e.g., TCI state, antenna subarray, antenna element, beam, etc.) that does not have a beam correspondence to enable the first device to be used or operated in a low power mode, a high temperature or temperature gradient mode, or both.

[0097] One or more of the base stations 105 may be an example of a second device (e.g., a second wireless device) as discussed herein, and may include a base station communication manager 102. The base station communication manager 102 may receive a capability (e.g., in a capability field) indicating a state of a dynamic mixed-mode beam correspondence (e.g., a dynamic beam correspondence indication) at a first device. Thus, the base station communication manager 102 may then determine an operating mode for use by the first device based on the capability, and may send an indication of the operating mode to the first device. As described above, the operating mode may indicate that the first device uses certain configurations (e.g., TCI states, antenna subarrays, antenna elements, beams, etc.) for different processes (e.g., initial access processes, beam failure recovery procedures, etc.), for different modes (e.g., low power mode, high temperature or temperature gradient mode observed, etc.), or both, wherein certain configurations correspond to full beam correspondence or no beam correspondence based on the received capabilities.

[0098] Figure 2 An example of a wireless communication device with multiple antenna arrays 200 supporting dynamic mixed-mode beam correspondence (e.g., dynamic beam correspondence) in the upper mmW band according to aspects of the present disclosure is shown. In some examples, the wireless communication device with multiple antenna arrays 200 can implement aspects of the wireless communication system 100. In this example, although the wireless communication device can be a UE 115-a, in other cases, the wireless communication device can be a different device, such as a CPE, a relay device, a router, a repeater, or an IAB node.

[0099] In this example, the UE 115-a includes a plurality of different antenna modules, including a first antenna module 205, a second antenna module 210, and a third antenna module 215. Each of the antenna modules 205 to 215 may include a plurality of subarrays 220 of antenna elements. In FR2 (e.g., 24.25 to 52.6 GHz), each antenna module of the UE 115-a may include a 4x1 antenna patch subarray (e.g., four (4) antenna elements 225 in a single row). Additionally or alternatively, in FR4 (e.g., above 52.6 GHz), each antenna module may include an 8x2 antenna patch subarray (e.g., eight (8) antenna elements 225 in two (2) rows, for a total of 16 antenna elements), a 16x4 antenna patch subarray (e.g., 16 antenna elements 225 in four (4) rows, for a total of 64 antenna elements), or a different configuration having a greater number of antenna elements 225 than in FR2.

[0100] As shown in this example, the first antenna module 205 may include four subarrays 220, including a first subarray 220-a, a second subarray 220-b, a third subarray 220-c, and a fourth subarray 220-d (e.g., the four subarrays 220 may be considered as aggregate antenna panels or aggregate patch subarrays). Each subarray 220 in this example may include 16 individual antenna elements 225 arranged in a 4x4 array configuration (e.g., such that the aggregate antenna panel or aggregate patch subarray includes 16x4 antenna elements 225 in a 16x4 antenna patch subarray). In some cases, each antenna element 225 may be a patch antenna element configured to communicate in a high-band mmW deployment. In some cases, the spacing of the antenna elements 225 within each subarray 220 may be configured to provide for efficient analog beamforming (e.g., in FR4) at a wavelength associated with high-band mmW communications. In addition, in this example, each subarray 220 may include an associated radio frequency integrated circuit (RFIC) 230.

[0101] exist Figure 2 In the example of , the second antenna module 210 may also include a plurality of subarrays 235, including a first subarray 235-a and a second subarray 235-b. In this example, the first subarray 235-a includes eight antenna elements arranged in a 4x2 array configuration, and the second subarray 235-b includes four antenna elements arranged in a 4x1 array configuration. In this case, although a single RFIC (RFIC5) 240 may be coupled to the subarray 235, multiple RFICs may be used, or the RFIC may be shared with one or more of the antenna modules 205 or 215. Although the antenna module 210 is shown as having a plurality of subarrays 235 of different sizes, other examples may have the same number of subarrays 235, each of which has the same size (e.g., four 4x4 antenna subarrays, similar to that shown in the first antenna module 205). The techniques discussed herein may be applied to any number of antenna modules 205, 210, or 215, any number of subarrays included in each antenna module, any number of antennas per subarray, or any combination thereof.

[0102] As discussed herein, a wireless device may use multiple RFICs 230 and associated antenna subarrays 220 at different times. Figure 2In some cases, where the wireless device is a UE 115-a, it may be desirable to operate using only a subset of the antenna modules 205, 210, or 215, using only a subset of the antenna subarrays 220 and associated RFICs 230, using only a subset of the antenna elements 225 within one or more subarrays 220, or any combination thereof. For example, such operations may allow the UE 115-a to manage power consumption in order to reduce the power used by radio frequency (RF) components. In other cases, in addition to or in lieu of power consumption considerations, the UE 115-a may determine one or more maximum permitted exposure (MPE) limits, one or more thermal limits, or a combination thereof such that it is desirable to use only certain groups of the antenna elements 225 of the one or more subarrays 220. Thus, even though a relatively large number of antenna elements 225 are available at the UE 115-a, not all of the elements may be used at any particular moment.

[0103] For example, UE 115-a may have a total of N antenna elements 225 across each of the different antenna modules 205, 210, or 215, and may select K antenna elements 225 for communication, resulting in N C K There are a number of possibilities, which may result in a relatively large number of combinations of different antenna elements 225. Thus, in some cases, UE 115-a may select a relatively small list of antenna groups that are useful at a given time (e.g., based on power consumption, MPE considerations, thermal considerations, etc.). UE 115-a may provide an indication of the selected antenna groups to a second device (e.g., a base station), and communication may be established using one of the indicated antenna groups.

[0104] Additionally, for certain lower frequency ranges (e.g., FR2, such as 24.25 to 52.6 GHz or lower frequency ranges), an uplink-downlink beam correspondence is assumed. That is, the beams used for downlink communications (modulo some calibration changes that are the same for uplink and downlink) may be reused for uplink communications, so the same or similar beam weights may be used for both downlink and uplink communications at different antenna elements 225 of UE 115-a. Additionally, the beam correspondence may also assume some tolerance for beam peak differences in the uplink and downlink.

[0105] For FR4 (e.g., or upper mmW bands, systems above 52.6 GHz, etc.), the antenna sets (e.g., antenna elements 225, subarrays 220, etc.) used for downlink communications and for uplink communications may be different (e.g., significantly different, such that the antenna elements are on different antenna modules, RFICs 230, etc.). For example, the arrays, subarrays 220, antenna elements 225, etc. used for uplink communications may be the same or different than the arrays, subarrays 220, antenna elements 225, etc. used for downlink communications on the same or different panels / modules.

[0106] That is, some subarrays 220 for uplink communications (e.g., uplink subarrays) may be located on the same module / panel (e.g., pointed in the same direction) as subarrays 220 for downlink communications (e.g., downlink subarrays), or some subarrays 220 for uplink communications may be located on different modules / panels than subarrays 220 for downlink communications or may be located on the same module / panel but pointed in a different direction (e.g., relative to subarrays 220 for downlink communications). Thus, in these scenarios, beams learned for arrays, subarrays 220, antenna elements 225, etc. for downlink communications with beam training (e.g., P-1-2-3 beam training) may not be useful for uplink transmissions (e.g., for identifying or refining beams for arrays, subarrays 220, antenna elements 225, etc. for uplink communications).

[0107] In some cases, different sets of antennas may be used for power reasons, performance reasons, RF / architecture reasons, or a combination thereof. For example, based on the fact that downlink communications are less power intensive than uplink communications, a higher number of antenna elements 225 may be used for downlink communications than for uplink communications (e.g., eight (8) antenna elements 225 for downlink communications versus two (2) to four (4) antenna elements 225 for uplink communications). Thus, because uplink communications may consume more power (e.g., based on the fact that sending out communications requires more power than simply receiving communications on the higher number of antenna elements 225 used for downlink communications), a smaller number of antenna elements 225 may be used for uplink communications to use less overall power. Additionally, the antenna elements 225 used for downlink communications may be viewed as using less power (e.g., less power consumption), while the antenna elements 225 used for uplink communications may use power amplifiers (e.g., to increase the power of the uplink transmission, such as by 12 decibels (dB)), thereby increasing the power consumption of the UE 115-a for uplink communications.

[0108] Thus, this asymmetry (e.g., using different antenna elements 225 for uplink and downlink communications) may potentially disrupt uplink-downlink beam correspondence at UE 115-a (e.g., beam correspondence may be supported if the same antenna elements 225 are used for uplink and downlink communications). For example, any changes and / or beam weights applied to the set of antennas used for downlink communications may not be applied to the set of antennas used for uplink communications. In some cases, based on using different arrays / subarrays of antenna elements 225 for downlink and uplink communications, UE 115-a may send a static indication as to whether beam correspondence can be achieved. However, by communicating in FR4 and using different arrays / subarrays of antenna elements, beam correspondence may be available in some scenarios (e.g., in certain TTIs, for certain TCI states, for certain beams, etc.), so beam correspondence may not be just a "yes" or "no" indication. The beam correspondence support capability may be considered partial, and therefore, new signaling may be required to signal the partial capability and how to quantize the capability.

[0109] As described herein, UE 115-a may determine and send a capability (e.g., in a capability field or similar medium for indicating dynamic mixed-mode beam correspondence capability) indicating a state for dynamic mixed-mode beam correspondence with a second device based on using different antenna elements for downlink and uplink communications. Thus, UE 115-a may then operate in a mode (e.g., an operating mode as indicated in a transmission by a second device (such as base station 105)) using certain TCI states, antenna subarrays, antenna elements, beams, etc. to perform different processes with the second device based on the capability. Reference Figure 3 and Figure 4 The content of capabilities and various examples of capability-based operating modes are discussed.

[0110] Figure 3 An example of a wireless communication system 300 that supports dynamic mixed-mode beam correspondence (e.g., dynamic beam correspondence) in the upper mmW frequency band according to aspects of the present disclosure is shown. In some examples, the wireless communication system 300 can implement aspects of the wireless communication system 100. In some examples, the wireless communication system 300 can include a UE 115-b and a base station 105-a, which can be referenced Figure 1-Figure 2Examples of UE 115 and base station 105. In addition, UE 115-b can be an example of a first device (e.g., UE 115, CPE, etc.), and base station 105-a can be an example of a second device (e.g., base station 105, CPE, repeater, router, repeater, IAB node, etc.). In addition, UE 115-b, base station 105-a, or both can be viewed as high-layer devices that include a higher set of capabilities than mid-tier or low-tier devices. For example, UE 115-b can access a higher number of bits (e.g., 200 or more) to indicate different capabilities of UE 115-b based on being a high-tier device.

[0111] UE 115-b and base station 105-a can communicate using beamforming communications, wherein UE 115-b sends uplink communications 305 to base station 105-a using one or more beams 312, and base station 105-a sends downlink communications 310 to UE 115-b using beams. In addition, UE 115-b can receive downlink communications 310 from base station 105-a using one or more beams 312. In some examples, UE 115-b and base station 105-a can communicate in an upper-band frequency range (e.g., FR2 including frequencies greater than 24.25 GHz or FR4 including frequencies greater than 52.6 GHz). In some cases, UE 115-b can include a relatively large number of antenna elements, which can be distributed across one or more antenna subarrays and one or more antenna modules (e.g., based on communicating in the upper-band frequency range or FR4).

[0112] In some examples, UE 115-b may use the same set of antenna elements for both sending uplink messages to base station 105-a and receiving downlink messages from base station 105-b, where the same set of antenna elements may correspond to a single beam 312-a that is considered to have a full beam correspondence. Additionally or alternatively, UE 115-b may use different sets of antenna elements from a relatively large number of antenna elements for different transmission directions. For example, UE 115-b may use a first set of antenna elements for receiving downlink communications (e.g., on beam 312-b), and may use a second set of antenna elements for sending uplink communications (e.g., on beam 312-c). For example, based on different sets of antenna elements, there may not be a beam correspondence between the beam used to receive downlink communications (e.g., using the first set of antenna elements) and the beam used to send uplink communications (e.g., using the second set of antenna elements), for example, in the absence of a beam correspondence between the uplink and downlink, UE 115-b may use different uplink and downlink antenna arrays. That is, the same beam or similar beams (e.g., full beam correspondence beams or hybrid beam correspondence beams) pointing in the same direction may not be used for both uplink communications and downlink communications (e.g., at UE 115-b).

[0113] In some cases, in certain frequency ranges (such as FR2), beam correspondence may be a static UE capability (e.g., whether or not UE 115-b has the static UE capability). For example, beam correspondence may be indicated via one (1) bit (e.g., a binary field), where UE 115-b sends the bit (e.g., as a "1") to indicate "beam correspondence" (e.g., within a certain tolerance (such as a 2dB margin) between the array gains seen for the downlink and uplink beams in the peak direction) or the bit (e.g., as a "0") to indicate "no beam correspondence" (e.g., assuming that no beam correspondence exists at all). In other frequency ranges (e.g., FR4), beam correspondence may be considered a dynamic capability. For example, beam correspondence for UE 115-b operating in an upper-band frequency range may change dynamically over time (e.g., UE 115-b has beam correspondence for a first time slot, does not have beam correspondence for a next time slot, and so on). Additionally, beam correspondence may include time-dependent capabilities that need to be communicated from UE 115-b to base station 105-a. For example, whenever UE 115-b identifies a change in its beam correspondence capabilities, it may be desirable to exchange information or indications of beam correspondence for UE 115-b. There may be scenarios in which UE 115-b may declare a lack of beam correspondence even though the capability is available to address different UE-specific issues, such as optimizing power and thermal considerations. Therefore, efficient techniques are desired for indicating scenarios in which beam correspondence is partial (e.g., hybrid beam correspondence, dynamic beam correspondence, dynamic hybrid mode beam correspondence, etc.) and for quantifying these partial beam correspondence capabilities.

[0114] As described herein, UE 115-b may send a capability indication 315 to base station 105-a indicating a dynamic beam correspondence capability (e.g., hybrid beam correspondence) of UE 115-b. For example, the dynamic beam correspondence capability may be referred to as a dynamic hybrid mode beam correspondence for UE 115-b (e.g., to distinguish the dynamic beam correspondence from a static capability or definition as described above). In some cases, the capability indication 315 may include a two (2) or three (3) bit field to indicate a dynamic hybrid mode beam correspondence (e.g., dynamic beam correspondence) for UE 115-b (e.g., rather than a single bit for a static beam correspondence indication). In addition, although a two (2) or three (3) bit field for indicating a dynamic hybrid mode beam correspondence is described above, a larger size (e.g., greater than three (3) bits) or dynamic bit field for the capability indication 315 may not be excluded in the above description and may be used to indicate a dynamic hybrid mode beam correspondence.

[0115] UE 115-b may declare dynamic mixed-mode beam correspondence in the capability indication 315 in a variety of ways (e.g., utilizing multiple bits of a bit field). In some cases, UE 115-b may declare beam correspondence, or lack thereof, in a time-dependent manner (e.g., beam correspondence changes across different TTIs, such as different symbols, time slots, subframes, etc.). For example, the dynamic mixed-mode beam correspondence may indicate the presence or absence of full beam correspondence (e.g., for a corresponding set of beams, a set of antenna elements for generating beams, a set of beam weights for generating beams, or a combination thereof) in a time-dependent or dynamic manner across different symbols, time slots, or subframes. In some cases, the full beam correspondence may indicate that the same (calibrated and adjusted) set of the following items may be used for both downlink beams and uplink beams of UE 115-b: beam weights, antenna amplitudes, antenna phases, or a combination thereof. For example, the full beam correspondence may indicate that the same beam (e.g., the same set of beam weights, antenna amplitudes, antenna phases, or a combination thereof) may be used for both uplink and downlink communications at UE 115 - b (e.g., for both the downlink beam and the uplink beam, such that the downlink beam and the uplink beam are the same beam).

[0116] Additionally or alternatively, UE 115-b may declare beam correspondences for some TCI states (e.g., beams or beam weight sets mapped to certain uplink or downlink subarrays, different sets of antenna elements, etc., so that beam correspondences may be declared for different beams, beam weight sets, subarrays, antenna element sets, or combinations thereof), and declare that no beam correspondences exist for certain other TCI states. In some cases, time-related aspects may be utilized to indicate beam correspondences or the absence of beam correspondences for different TCI states (e.g., beam correspondences for a first TCI state in a first TTI, and the absence of beam correspondences for the first TCI state in a next TTI, beam correspondences for a second TCI state in a first TTI, and the absence of beam correspondences for the second TCI state in a next TTI, etc.). For example, a dynamic hybrid mode beam correspondence may indicate that full beam correspondences exist for some TCI states and that full beam correspondences do not exist for some TCI states in a static manner or in a time-related / dynamic manner. The TCI state may indicate different beams, beam indices, etc., that the UE 115 - b uses for communicating with the base station 105 - a (eg, for downlink communications and for uplink communications).

[0117] Additionally or alternatively, the UE 115-b may assert the absence of beam correspondence (e.g., a different set of antenna elements, a different set of beam weights, etc. for certain TCI states) and the associated power savings and thermal or heat gradient reduction (e.g., UE surface temperature reduced from 110°F to 105°F) on downlink-uplink operations due to the lack of beam correspondence. That is, the UE 115-b may identify different potential advantages (e.g., such as power savings and thermal reduction) that may be exploited when operating without beam correspondence and may indicate these advantages to the base station 105-b when indicating in the capability indication 315 that beam correspondence is not supported. These advantages may be asserted in a power and / or thermal quantified manner.

[0118] When receiving the UE's declaration of dynamic mixed-mode beam correspondence in the capability indication 315, the base station 105-a can respond with an operating mode indication 320, which can include different operating modes for use by the UE 115-b based on the dynamic mixed-mode beam correspondence. For example, the base station 105-a can indicate in the operating mode indication 320 for the UE 115-b that the TCI state and subarray (e.g., operating mode) with full beam correspondence is used for the initial access process. In addition or alternatively, the base station 105-a can indicate in the operating mode indication 320 for the UE 115-b that the TCI state and subarray (e.g., operating mode) with full beam correspondence is used for the beam failure recovery process. For example, based on the capability indication 315, the base station 105-a can identify certain TTIs where the UE 115-b has full beam correspondences for specific TCI states and antenna elements (e.g., antenna arrays, subarrays, etc.), and based on when the process is occurring, it can indicate to the UE 115-b that the process (e.g., initial access process, beam failure recovery process, etc.) will be performed using these specific TCI states and antenna elements (e.g., operating modes). As a result, the UE 115-b can perform the process using the corresponding beam with full beam correspondence (e.g., with a specific TCI state, on a specific antenna element, etc.) (e.g., operating mode).

[0119] Additionally or alternatively, the base station 105-a may indicate in the operating mode indication 320 for the UE 115-b that a TCI state and subarray with a hybrid beam correspondence (e.g., an operating mode using different uplink and downlink subarrays) is used for a low power mode and / or a high temperature mode (e.g., a high temperature or high temperature gradient mode). For example, the base station 105-a may indicate for the UE 115-b that a TCI state and subarray without a beam correspondence is used for uplink and downlink communications (e.g., an operating mode) as part of the low power mode and / or high temperature mode (e.g., as described above, for associated power savings and / or thermal reduction due to the lack of beam correspondence as indicated in the capability indication 315). For example, the low power mode may include when the UE 115-b has a low battery charge (e.g., less than a threshold of battery charge, such as less than 20% of a charged battery charge), so that the UE 115-b may attempt to save power to remain turned on, wherein using beams in the absence of beam correspondence may help save power. Additionally, a high temperature mode (e.g., a high temperature gradient mode) may include when UE 115-b is operating at a high temperature (e.g., or the temperature of UE 115-b has been increasing at a high rate), such that UE 115-b is attempting to reduce its temperature to prevent damage to itself that may occur due to the high operating temperature, where use of beams in the absence of beam correspondence may help reduce the temperature.

[0120] That is, different operating modes may include the UE 115-b using beams (e.g., TCI states, subarrays used to form beams, beam weights, etc.) with different levels of beam correspondence (e.g., full beam correspondence, hybrid beam correspondence, no beam correspondence, etc.) indicated by the base station 105-b in the operating mode indication 320 to perform different procedures (e.g., initial access procedures, beam failure recovery procedures, etc.) or operate in different modes (e.g., low power mode, high temperature mode, etc.). After receiving the operating mode indication 320, the UE 115-b and the base station 105-a may then communicate based on the operating mode indication 320 (e.g., using an operating mode including using the indicated beams, TCI states, subarrays, beam weights, etc. with full beam correspondence, hybrid beam correspondence, no beam correspondence, etc.).

[0121] Figure 4An example of a process flow 400 for supporting dynamic hybrid mode beam correspondence in the upper mmW band according to aspects of the present disclosure is shown. In some examples, the process flow 400 can implement aspects of the wireless communication systems 100 and 300. The process flow 400 can be implemented by a first device 405 and a second device 410 as described herein. The following alternative examples can be implemented, in which some steps are performed in a different order than described or not performed at all. In some cases, the steps may include additional features not mentioned below, or additional steps may be added.

[0122] At 415, the first device 405 may identify a first set of antenna elements for downlink communication with the second device 410 and a second set of antenna elements for uplink communication with the second device 410, wherein the first set of antenna elements is different from the second set of antenna elements. In some cases, the first device 405 may be a UE 115 or a CPE in a wireless communication system, and the second device 410 may be a base station 105, a CPE, a relay device, a router, a repeater, or an IAB node in the wireless communication system.

[0123] At 420, the first device 405 may send a capability indicating a status of a dynamic hybrid mode beam correspondence (e.g., dynamic beam correspondence) with the second device 410 to the second device 410, wherein the transmission of the capability is based on the first set of antenna elements being different from the second set of antenna elements. For example, the capability indicating a status of a dynamic hybrid mode beam correspondence with the second device may be a hybrid beam correspondence mode operation indication (e.g., dynamic beam correspondence indication).

[0124] In some cases, the first device 405 may send a time-related status for a dynamic hybrid mode beam correspondence with the second device 410 to the second device 410, wherein the time-related status indicates a beam correspondence capability that changes for different TTIs. For example, the time-related status for the dynamic hybrid mode beam correspondence may include: an indication of a beam correspondence for a first TTI, an indication that there is no beam correspondence for a second TTI, or a combination thereof. In addition, different TTIs may include different symbols, time slots, or subframes.

[0125] Additionally or alternatively, when sending the capabilities, the first device 405 may send a first indication of a beam correspondence for one or more first TCI states, a second indication of an absence of a beam correspondence for one or more second TCI states, or a combination thereof to the second device 410. In some cases, the first indication of a beam correspondence, the second indication of an absence of a beam correspondence, or both may be time-related.

[0126] Additionally or alternatively, when sending the capability, the first device 405 may send an indication to the second device 410 that a beam correspondence does not exist, and may send (e.g., utilizing an indication that a beam correspondence does not exist) a power savings, a reduction in temperature or a temperature gradient, or both for communications with the second device 410, wherein the power savings, the reduction in temperature or a temperature gradient, or both are due to the lack of a beam correspondence.

[0127] At 425 , the second device 410 may determine an operating mode for communication with the first device 405 based on the received capabilities.

[0128] At 430, the first device 405 may receive from the second device 410 an indication of an operating mode to be used for communication with the second device 410, the operating mode being based on capabilities. For example, when receiving an indication of an operating mode, the first device 405 may receive from the second device 410 an indication of using one or more TCI states, one or more subarrays, or a combination thereof (e.g., an operating mode), wherein the one or more TCI states, one or more subarrays, or a combination thereof have a full beam correspondence for communication with the second device 410. In some cases, the one or more TCI states, one or more subarrays, or a combination thereof may be used for an initial access procedure, a beam failure recovery procedure, or both. Additionally or alternatively, the one or more TCI states, one or more subarrays, or a combination thereof (e.g., an operating mode) may be used for a low power mode, a high temperature or temperature gradient mode, or both (e.g., if the one or more TCI states, one or more subarrays, or a combination thereof do not have a beam correspondence). In some cases, the full beam correspondence may include the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams used for communication with the second device 410 .

[0129] At 435, the first device 405 can communicate with the second device 410 (eg, via the mmW band) based on the received indication of the operating mode. In some cases, the communication between the first device 405 and the second device 410 can occur at a frequency greater than 24.25 GHz.

[0130] Figure 5 A block diagram 500 of a device 505 supporting dynamic hybrid mode beam correspondence in an upper mmW band according to aspects of the present disclosure is shown. The device 505 may be an example of aspects of a first device (e.g., UE 115, CPE, etc.) as described herein. The device 505 may include a receiver 510, a first device communication manager 515 (e.g., which may be as described above with reference to Figure 1The device 505 may include an example of a UE communication manager 101 described above) and a transmitter 520. The device 505 may also include a processor. Each of these components may be in communication with each other (eg, via one or more buses).

[0131] The receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to dynamic hybrid mode beam correspondence in the upper mmW frequency band, etc.). The information may be communicated to other components of the device 505. The receiver 510 may be a reference Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 510 may utilize a single antenna or a group of antennas.

[0132] The first device communication manager 515 may send a capability to the second device indicating the state of a dynamic beam correspondence with the second device, the transmission of which is based on the first set of antenna elements being different from the second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. Subsequently, the first device communication manager 515 may receive from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the capability. Thus, the first device communication manager 515 may communicate with the second device based on the received indication of the operating mode. The first device communication manager 515 may be an example of various aspects of the first device communication manager 810 described herein.

[0133] In some examples, the first device communication manager 515 as described herein can be implemented to achieve one or more potential advantages. For example, by signaling the ability to indicate dynamic beam correspondence, the second device can identify specific TCI states, antenna subarrays, etc. for the first device to use to perform certain processes / modes at specific times based on the dynamic beam correspondence. As a result, the first device can use a more efficient configuration (e.g., TCI state, beam, antenna element, etc.) to perform a process (e.g., initial access, beam failure recovery, etc.) with a higher chance of successfully performing the process the first time, thereby increasing the reliability of the success of the process, rather than performing the process using a less optimal configuration with a higher chance of failure.

[0134] The first device communication manager 515 may be an example of a unit for performing various aspects of indicating dynamic beam correspondences (e.g., dynamic mixed-mode beam correspondences) as described herein. The first device communication manager 515 or its subcomponents may be implemented in hardware (e.g., in a communication management circuit). The circuit may include one or more of a processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a 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 the present disclosure.

[0135] In another implementation, the first device communication manager 515 or its subcomponents may be implemented in code executed by a processor (e.g., communication management software or firmware) or any combination thereof. If implemented in code executed by a processor, the functions of the first device communication manager 515 or its subcomponents may be performed by a general purpose processor, DSP, ASIC, FPGA, or other programmable logic device designed to perform the functions described in the present disclosure.

[0136] In some examples, the first device communication manager 515 can be configured to perform various operations (e.g., sending, receiving, communicating) using or otherwise cooperating with the receiver 510, the transmitter 520, or both.

[0137] The first device communication manager 515 or its subcomponents may be physically located at various locations, including being distributed so that part of the functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the first device communication manager 515 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the first device communication manager 515 or its subcomponents may be combined with one or more other hardware components (including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in the present disclosure, or combinations thereof).

[0138] The transmitter 520 can transmit signals generated by other components of the device 505. In some examples, the transmitter 520 can be co-located with the receiver 510 in a transceiver module. For example, the transmitter 520 can be as described in reference Figure 8 Examples of aspects of the transceiver 820 are described. The transmitter 520 may utilize a single antenna or a group of antennas.

[0139] Figure 6A block diagram 600 of a device 605 supporting dynamic hybrid mode beam correspondence in an upper mmW band according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of the device 505 or a first device (e.g., UE 115, CPE, etc.) as described herein. The device 605 may include a receiver 610, a first device communication manager 615, and a transmitter 640. The device 605 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0140] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to dynamic hybrid mode beam correspondence in the upper mmW frequency band, etc.). The information may be communicated to other components of the device 605. The receiver 610 may be as described with reference to Figure 8 Examples of various aspects of the transceiver 820 are described. The receiver 610 may utilize a single antenna or a group of antennas.

[0141] The first device communication manager 615 may be an example of aspects of the first device communication manager 515 as described herein. The first device communication manager 615 may include an antenna element identifier 620, a hybrid beam correspondence indicator 625, an operation mode component 630, and an operation mode communicator 635. The first device communication manager 615 may be an example of aspects of the first device communication manager 810 described herein.

[0142] Antenna element identifier 620 may identify a first set of antenna elements for downlink communication with a second device and a second set of antenna elements for uplink communication with the second device, the first set of antenna elements being different from the second set of antenna elements.

[0143] The hybrid beam correspondence indicator 625 may transmit to the second device a capability indicating a status of a dynamic beam correspondence with the second device, wherein transmission of the capability is based on a first antenna element set being different from a second antenna element set.

[0144] The operating mode component 630 can receive from the second device an indication of an operating mode to be used for communications with the second device, the operating mode being based on capabilities.

[0145] The operating mode communicator 635 may communicate with the second device (eg, via the mmW frequency band) based on the received indication of the operating mode.

[0146] Based on the technology for determining and sending an indication of the state of the dynamic beam correspondence relationship with the second device, the processor of the first device (e.g., controlling the receiver 610, the transmitter 640 or as described in reference Figure 8 The transceiver 820 described herein can reduce the latency and signaling overhead that would be caused by performing different processes (e.g., initial access, beam failure recovery, etc.) multiple times based on the use of less efficient or less optimized configurations (e.g., TCI states, antenna arrays / subarrays, etc. that do not have beam correspondence at a given time). In addition, by performing a process based on the received operating mode indication, the processor of the first device can then save power by performing the process using an efficient configuration determined by the second device based on the operating mode (e.g., the first device may not have to perform the process multiple times because the first time has a higher chance of success based on the dynamic beam correspondence). In some cases, the processor can also save power and / or achieve thermal reduction for the first device based on the received operating mode indication.

[0147] The transmitter 640 can transmit signals generated by other components of the device 605. In some examples, the transmitter 640 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 640 can be a reference Figure 8 Examples of aspects of the transceiver 820 are described. The transmitter 640 may utilize a single antenna or a group of antennas.

[0148] Figure 7 A block diagram 700 of a first device communication manager 705 supporting dynamic hybrid mode beam correspondence in the upper mmW band is shown in accordance with aspects of the present disclosure. The first device communication manager 705 may be an example of aspects of the first device communication manager 515, the first device communication manager 615, or the first device communication manager 810 described herein. The first device communication manager 705 may include an antenna element identifier 710, a hybrid beam correspondence indicator 715, an operating mode component 720, an operating mode communicator 725, a time-correlated beam correspondence indicator 730, and a TCI state beam correspondence indicator 735. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0149] The antenna element identifier 710 can identify a first set of antenna elements for downlink communication with a second device and a second set of antenna elements for uplink communication with the second device, the first set of antenna elements being different from the second set of antenna elements. In some cases, the first device can be a UE or CPE in a wireless communication system, and the second device can be a base station, CPE, relay device, router, repeater, or IAB node in the wireless communication system.

[0150] The hybrid beam correspondence indicator 715 may send a capability to the second device indicating a state of a dynamic beam correspondence with the second device, the transmission of which is based on the first set of antenna elements being different from the second set of antenna elements. In some examples, the hybrid beam correspondence indicator 715 may send an indication to the second device that there is no beam correspondence, and may send to the second device a power savings, a reduction in temperature or temperature gradient, or both for communication with the second device, wherein the power savings, the reduction in temperature or temperature gradient, or both are due to the lack of beam correspondence. In some cases, the capability to indicate a state of a dynamic beam correspondence with the second device may include a hybrid beam correspondence mode operation indication.

[0151] The operation mode component 720 can receive an indication of the operation mode to be used for communication with the second device from the second device, and the operation mode is based on capability. For example, the operation mode component 720 can receive an indication to use one or more TCI states, one or more subarrays, or a combination thereof from the second device, wherein the one or more TCI states, one or more subarrays, or a combination thereof have a full beam correspondence for communication with the second device. In some cases, one or more TCI states, one or more subarrays, or a combination thereof are used for initial access procedures, for beam fault recovery procedures, or both. Additionally or alternatively, one or more TCI states, one or more subarrays, or a combination thereof are used for low power mode, high temperature or temperature gradient mode, or both. In some cases, the full beam correspondence includes the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for communication with the second device.

[0152] The operating mode communicator 725 can communicate with the second device based on the received indication of the operating mode (eg, via the mmW frequency band). In some cases, the communication with the second device can occur at a frequency greater than 24.25 GHz.

[0153] The time-varying beam correspondence indicator 730 may send a time-varying state for a dynamic beam correspondence with the second device to the second device. In some cases, the time-dependent state for the dynamic beam correspondence may include: an indication of a beam correspondence for a first TTI, an indication that there is no beam correspondence for a second TTI, or a combination thereof. In addition, the time-dependent state may indicate a beam correspondence capability that changes for different TTIs. For example, different TTIs may include different symbols, time slots, or subframes.

[0154] The TCI state beam correspondence indicator 735 may send to the second device a first indication of a beam correspondence for one or more first TCI states, a second indication of the absence of a beam correspondence for one or more second TCI states, or a combination thereof. In some cases, the first indication of the beam correspondence, the second indication of the absence of a beam correspondence, or both may be time-related.

[0155] Figure 8 A diagram of a system 800 including a device 805 supporting dynamic mixed mode beam correspondence in the upper mmW band according to aspects of the present disclosure is shown. The device 805 may be an example of or include a component of a device 505, device 605, or a first device (e.g., UE 115, CPE, etc.) as described herein. The device 805 may include components for two-way voice and data communications, including components for sending and receiving communications, including a first device communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may communicate electronically via one or more buses (e.g., bus 855).

[0156] The first device communication manager 810 may send a capability to the second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on the first set of antenna elements being different from the second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. Subsequently, the first device communication manager 810 may receive from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the capability. Thus, the first device communication manager 810 may communicate with the second device (e.g., via a mmW band) based on the received indication of the operating mode.

[0157] I / O controller 815 can manage input and output signals for device 805. I / O controller 815 can also manage peripheral devices that are not integrated into device 805. In some cases, I / O controller 815 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 815 can utilize a computer such as a MS- , or another known operating system. In other cases, I / O controller 815 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 815 may be implemented as part of a processor. In some cases, a user may interact with device 805 via I / O controller 815 or via hardware components controlled by I / O controller 815.

[0158] The transceiver 820 may communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 820 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 820 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0159] In some cases, a device may include a single antenna 825. However, in some cases, the device may have more than one antenna 825 that are capable of sending or receiving multiple transmissions simultaneously.

[0160] The memory 830 may include random access memory (RAM) and read-only memory (ROM). The memory 830 may store computer-readable, computer-executable code 835, which includes instructions that cause the processor to perform various functions described herein when executed. In some cases, the memory 830 may also contain, among other things, a basic I / O system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0161] The processor 840 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a central processing unit (CPU), a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 840 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 840. The processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks that support dynamic hybrid mode beam correspondence in the upper mmW band).

[0162] The code 835 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting communications (such as wireless communications). The code 835 may be stored in a non-transitory computer-readable medium (e.g., system memory or other types of memory). In some cases, the code 835 may not be directly executable by the processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0163] Fig. 9 A block diagram 900 of a device 905 supporting dynamic hybrid mode beam correspondence in an upper mmW band according to aspects of the present disclosure is shown. The device 905 may be an example of aspects of a second device (e.g., a base station 105, a CPE, a relay device, a router, a repeater, an IAB node, etc.) as described herein. The device 905 may include a receiver 910, a second device communication manager 915 (e.g., which may be as described above with reference to Figure 1 The device 905 may include an example of a base station communication manager 102 described above) and a transmitter 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0164] The receiver 910 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to dynamic hybrid mode beam correspondence in the upper mmW frequency band, etc.). The information may be communicated to other components of the device 905. The receiver 910 may be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The receiver 910 may utilize a single antenna or a group of antennas.

[0165] The second device communication manager 915 may receive a capability indicating a state of a dynamic beam correspondence relationship between the first device and the second device from a first device communicating with the second device (e.g., via the mmW band). In some cases, the second device communication manager 915 may send an indication of an operating mode to be used for communication with the second device to the first device, the operating mode being based on the received capability. Thus, the second device communication manager 915 may communicate with the first device (e.g., via the mmW band) based on the sent indication of the operating mode. The second device communication manager 915 may be an example of various aspects of the second device communication manager 1210 described herein.

[0166] The second device communication manager 915 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the second device communication manager 915 or its subcomponents 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 the present disclosure.

[0167] The second device communication manager 915 or its subcomponents can be physically located at various locations, including being distributed so that part of the functions are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the second device communication manager 915 or its subcomponents can be separate and different components. In some examples, according to various aspects of the present disclosure, the second device communication manager 915 or its subcomponents can 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 the present disclosure, or combinations thereof).

[0168] The transmitter 920 can transmit signals generated by other components of the device 905. In some examples, the transmitter 920 can be co-located with the receiver 910 in a transceiver module. For example, the transmitter 920 can be as described in reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The transmitter 920 may utilize a single antenna or a group of antennas.

[0169] Fig.10 A block diagram 1000 of a device 1005 supporting dynamic mixed mode beam correspondence in the upper mmW band according to various aspects of the present disclosure is shown. The device 1005 can be an example of various aspects of the device 905 or a second device (e.g., a base station 105, a CPE, a relay device, a router, a repeater, an IAB node, etc.) as described herein. The device 1005 may include a receiver 1010, a second device communication manager 1015, and a transmitter 1040. The device 1005 may also include a processor. Each of these components can communicate with each other (e.g., via one or more buses).

[0170] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to dynamic hybrid mode beam correspondence in the upper mmW frequency band, etc.). The information may be communicated to other components of the device 1005. The receiver 1010 may be as described with reference to Fig.12Examples of various aspects of the transceiver 1220 are described. The receiver 1010 may utilize a single antenna or a group of antennas.

[0171] The second device communication manager 1015 may be an example of aspects of the second device communication manager 1015 as described herein. The second device communication manager 1015 may include a capability component 1020, an operating mode determination component 1025, an operating mode indicator 1030, and a mmW band communicator 1035. The second device communication manager 1015 may be an example of aspects of the second device communication manager 1210 described herein.

[0172] The capability component 1020 may receive, from a first device in communication with a second device (eg, via a mmW band), a capability indicating a status of a dynamic beam correspondence relationship between the first device and the second device.

[0173] Operational mode determination component 1025 can determine an operational mode for communication with the first device based on the received capabilities.

[0174] The operating mode indicator 1030 may send an indication to the first device of an operating mode to be used for communications with the second device.

[0175] The mmW band communicator 1035 may communicate with the first device (eg, via the mmW band) based on the transmitted indication of the operating mode.

[0176] The transmitter 1040 can transmit signals generated by other components of the device 1005. In some examples, the transmitter 1040 can be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1040 can be a reference Fig.12 Examples of various aspects of the transceiver 1220 are described. The transmitter 1040 may utilize a single antenna or a group of antennas.

[0177] Fig.11 A block diagram 1100 of a second device communication manager 1105 supporting dynamic mixed mode beam correspondence in an upper mmW band is shown in accordance with aspects of the present disclosure. The second device communication manager 1105 may be an example of aspects of the second device communication manager 915, the second device communication manager 1015, or the second device communication manager 1210 described herein. The second device communication manager 1105 may include a capability component 1110, an operating mode determination component 1115, an operating mode indicator 1120, a mmW band communicator 1125, a time-varying beam correspondence component 1130, and a TCI state beam correspondence component 1135. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

[0178] The capability component 1110 may receive, from a first device in communication with a second device (e.g., via an mmW band), a capability indicating a state of a dynamic beam correspondence between the first device and the second device. In some examples, the capability component 1110 may receive, from the first device, an indication that there is no beam correspondence, and may receive, from the first device, a power savings, a reduction in temperature or a temperature gradient, or both for communication with the first device, wherein the power savings, the reduction in temperature or a temperature gradient, or both are due to the lack of beam correspondence.

[0179] In some cases, the capability to indicate a state of a dynamic beam correspondence with a second device may include a hybrid beam correspondence mode operation indication. In addition, the first device may be a UE or a CPE in a wireless communication system, and the second device may be a base station, a CPE, a relay device, a router, a repeater, or an IAB node in the wireless communication system.

[0180] An operating mode determining component 1115 can determine an operating mode for communicating with the first device based on the received capabilities.

[0181] The operation mode indicator 1120 may send an indication of the operation mode to be used for communication with the second device to the first device. For example, the operation mode indicator 1120 may send an indication of the use of one or more TCI states, one or more subarrays, or a combination thereof to the first device, wherein the one or more TCI states, one or more subarrays, or a combination thereof have a full beam correspondence for communication with the second device. In some cases, one or more TCI states, one or more subarrays, or a combination thereof are used for an initial access process, for a beam fault recovery process, or both. Additionally or alternatively, one or more TCI states, one or more subarrays, or a combination thereof are used for a low power mode, a high temperature or temperature gradient mode, or both. In some cases, the full beam correspondence may include the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for communication with the first device.

[0182] The mmW band communicator 1125 may communicate with the first device (eg, via the mmW band) based on the transmitted indication of the operating mode. In some cases, the communication with the first device may occur at a frequency greater than 24.25 GHz.

[0183] The time-varying beam correspondence component 1130 may receive, from the first device, a time-varying state for a dynamic beam correspondence between the first device and the second device. In some cases, the time-dependent state of the dynamic beam correspondence includes: an indication of a beam correspondence for a first TTI, an indication that a beam correspondence does not exist for a second TTI, or a combination thereof. Additionally, the time-dependent state may indicate a beam correspondence capability that changes for different TTIs. For example, different TTIs may include different symbols, time slots, or subframes.

[0184] The TCI state beam correspondence component 1135 may receive from a first device a first indication of a beam correspondence for one or more first TCI states, a second indication of an absence of a beam correspondence for one or more second TCI states, or a combination thereof. In some cases, the first indication of a beam correspondence, the second indication of an absence of a beam correspondence, or both may be time-related.

[0185] Fig.12 A diagram of a system 1200 including a device 1205 supporting dynamic mixed mode beam correspondence in the upper mmW band according to aspects of the present disclosure is shown. The device 1205 may be an example of or include a component of a device 905, a device 1005, or a base station 105 as described herein. The device 1205 may include components for two-way voice and data communications, including components for sending and receiving communications, including a second device communication manager 1210, a network communication manager 1215, a transceiver 1220, an antenna 1225, a memory 1230, a processor 1240, and an inter-station communication manager 1245. These components may communicate electronically via one or more buses (e.g., a bus 1250).

[0186] The second device communication manager 1210 may receive a capability indicating a state of a dynamic beam correspondence relationship between the first device and the second device from a first device communicating with the second device (e.g., via the mmW band). In some cases, the second device communication manager 1210 may send an indication of an operating mode to be used for communication with the second device to the first device, the operating mode being based on the received capability. Thus, the second device communication manager 1210 may communicate with the first device (e.g., via the mmW band) based on the sent indication of the operating mode.

[0187] The network communications manager 1215 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1215 may manage the transmission of data communications for client devices (eg, one or more UEs 115).

[0188] The transceiver 1220 may communicate bidirectionally via one or more antennas, wired or wireless links as described above. For example, the transceiver 1220 may represent a transceiver and may communicate bidirectionally with another transceiver. The transceiver 1220 may also include a modem for modulating packets and providing the modulated packets to an antenna for transmission, and demodulating packets received from an antenna.

[0189] In some cases, a device may include a single antenna 1225. However, in some cases, the device may have more than one antenna 1225 that are capable of sending or receiving multiple transmissions simultaneously.

[0190] Memory 1230 may include RAM, ROM, or a combination thereof. Memory 1230 may store computer readable code 1235, which includes instructions that, when executed by a processor (e.g., processor 1240), cause the device to perform various functions described herein. In some cases, memory 1230 may also contain, among other things, BIOS, which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0191] Processor 1240 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks that support dynamic hybrid mode beam correspondence in the upper mmW band).

[0192] The inter-site communication manager 1245 can manage communications with other base stations 105 and can include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1245 can coordinate the scheduling of transmissions to UE 115 to implement various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1245 can provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0193] The code 1235 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting communications (such as wireless communications). The code 1235 may be stored in a non-transitory computer-readable medium (e.g., system memory or other types of memory). In some cases, the code 1235 may not be directly executable by the processor 1240, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0194] Fig.13 A flow chart illustrating a method 1300 for supporting dynamic hybrid mode beam correspondence in an upper mmW band according to aspects of the present disclosure is shown. The operations of the method 1300 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. Figures 5 to 8 In some examples, the first device may execute an instruction set to control a functional unit of the first device to perform the functions described below. Additionally or alternatively, the first device may use dedicated hardware to perform various aspects of the functions described below.

[0195] At 1305, the first device may send a capability to the second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. The operations of 1305 may be performed according to the methods described herein. In some examples, aspects of the operations of 1305 may be performed as described with reference to Figures 5 to 8 The hybrid beam correspondence indicator described is performed.

[0196] At 1310, the first device may receive from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on capabilities. The operations of 1310 may be performed according to the methods described herein. In some examples, aspects of the operations of 1310 may be described by referring to Figures 5 to 8 Describes the operating mode components to perform.

[0197] At 1315, the first device may communicate with the second device based on the received indication of the operating mode. The operations of 1315 may be performed according to the methods described herein. In some examples, aspects of the operations of 1315 may be described as described with reference to Figures 5 to 8 Describes the mode of operation the communicator performs.

[0198] Fig.14A flow chart illustrating a method 1400 for supporting dynamic hybrid mode beam correspondence in an upper mmW band according to aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. Figures 5 to 8 In some examples, the first device may execute an instruction set to control a functional unit of the first device to perform the functions described below. Additionally or alternatively, the first device may use dedicated hardware to perform various aspects of the functions described below.

[0199] At 1405, the first device may send a capability to the second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 5 to 8 The hybrid beam correspondence indicator described is performed.

[0200] At 1415, the first device may send a time-varying state for a dynamic beam correspondence with the second device to the second device. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be described by referring to Figures 5 to 8 The described time-varying beam correspondence indicator is implemented.

[0201] At 1420, the first device may receive from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the capability. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be described as described with reference to Figures 5 to 8 Describes the operating mode components to perform.

[0202] At 1425, the first device may communicate with the second device based on the received indication of the operating mode. The operations of 1425 may be performed according to the methods described herein. In some examples, aspects of the operations of 1425 may be described as described with reference to Figures 5 to 8 Describes the mode of operation the communicator performs.

[0203] Fig.15A flow chart illustrating a method 1500 for supporting dynamic hybrid mode beam correspondence in an upper mmW band according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. Figures 5 to 8 In some examples, the first device may execute an instruction set to control a functional unit of the first device to perform the functions described below. Additionally or alternatively, the first device may use dedicated hardware to perform various aspects of the functions described below.

[0204] At 1505, the first device may send a capability to the second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 5 to 8 The hybrid beam correspondence indicator described is performed.

[0205] At 1510, the first device may send a first indication of a beam correspondence for one or more first TCI states, a second indication of an absence of a beam correspondence for one or more second TCI states, or a combination thereof to the second device. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 5 to 8 The TCI status beam correspondence indicator described is executed.

[0206] At 1515, the first device may receive from the second device an indication of an operating mode to be used for communications with the second device, the operating mode being based on capabilities. The operations of 1515 may be performed according to methods described herein. In some examples, aspects of the operations of 1515 may be described as described with reference to Figures 5 to 8 Describes the operating mode components to perform.

[0207] At 1520, the first device may communicate with the second device based on the received indication of the operating mode. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be described as described with reference to Figures 5 to 8 Describes the mode of operation the communicator performs.

[0208] Fig.16A flow chart illustrating a method 1600 for supporting dynamic hybrid mode beam correspondence in an upper mmW frequency band according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a first device (e.g., UE 115, CPE, etc.) or a component thereof as described herein. Figures 5 to 8 In some examples, the first device may execute an instruction set to control a functional unit of the first device to perform the functions described below. Additionally or alternatively, the first device may use dedicated hardware to perform various aspects of the functions described below.

[0209] At 1605, the first device may send a capability to the second device indicating a state of a dynamic beam correspondence with the second device, the transmission of the capability being based on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed as described with reference to Figures 5 to 8 The hybrid beam correspondence indicator described is performed.

[0210] At 1610, the first device may send an indication to the second device that there is no beam correspondence. The operation of 1610 may be performed according to the methods described herein. In some examples, aspects of the operation of 1610 may be performed as described with reference to Figures 5 to 8 The hybrid beam correspondence indicator described is performed.

[0211] At 1615, the first device may send to the second device a power saving, a reduction in temperature or temperature gradient, or both, for communication with the second device, wherein the power saving, the reduction in temperature or temperature gradient, or both are due to the lack of beam correspondence. The operations of 1615 may be performed according to methods described herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 5 to 8 The hybrid beam correspondence indicator described is performed.

[0212] At 1620, the first device may receive from the second device an indication of an operating mode to be used for communications with the second device, the operating mode being based on the capability. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be described as described with reference to Figures 5 to 8 Describes the operating mode components to perform.

[0213] At 1625, the first device may communicate with the second device based on the received indication of the operating mode. The operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be described as described with reference to Figures 5 to 8 Describes the mode of operation the communicator performs.

[0214] Fig.17 A flow chart illustrating a method 1700 for supporting dynamic hybrid mode beam correspondence in an upper mmW frequency band according to aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by a second device (e.g., a base station 105, a CPE, a relay device, a router, a repeater, an IAB node, etc.) or a component thereof as described herein. For example, the operations of the method 1700 may be implemented by a second device (e.g., a base station 105, a CPE, a relay device, a router, a repeater, an IAB node, etc.) or a component thereof as described herein. Figures 9 to 12 In some examples, the second device may execute an instruction set to control a functional unit of the second device to perform the functions described below. Additionally or alternatively, the second device may use dedicated hardware to perform various aspects of the functions described below.

[0215] At 1705, the second device may receive a capability indicating a status of a dynamic beam correspondence relationship between the first device and the second device from a first device in communication with the second device. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed as described with reference to Figures 9 to 12 Describes the capabilities components to perform.

[0216] At 1710, the second device may send to the first device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the received capabilities. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be described by reference to Figures 9 to 12 Describes the operation mode indicator to perform.

[0217] At 1715, the second device may communicate with the first device based on the transmitted indication of the operating mode. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be described as described with reference to Figures 9 to 12 The mmW band communicator described is performed.

[0218] Fig.18A flow chart illustrating a method 1800 for supporting dynamic hybrid mode beam correspondence in an upper mmW frequency band according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a second device (e.g., a base station 105, a CPE, a relay device, a router, a repeater, an IAB node, etc.) or a component thereof as described herein. For example, the operations of the method 1800 may be implemented by a second device (e.g., a base station 105, a CPE, a relay device, a router, a repeater, an IAB node, etc.) or a component thereof as described herein. Figures 9 to 12 In some examples, the second device may execute an instruction set to control a functional unit of the second device to perform the functions described below. Additionally or alternatively, the second device may use dedicated hardware to perform various aspects of the functions described below.

[0219] At 1805, the second device may receive a capability indicating a status of a dynamic beam correspondence relationship between the first device and the second device from a first device that communicates with the second device via the mmW frequency band. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed as described with reference to Figures 9 to 12 Describes the capabilities components to perform.

[0220] At 1810, the second device may send to the first device an indication of an operating mode to be used for communication with the second device, the operating mode being based on the received capabilities. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be described with reference to Figures 9 to 12 Describes the operation mode indicator to perform.

[0221] At 1815, the second device may send an indication to the first device to use one or more TCI states, one or more subarrays, or a combination thereof, wherein the one or more TCI states, one or more subarrays, or a combination thereof have a full beam correspondence for communication with the second device. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed as described with reference to Figures 9 to 12 Describes the operation mode indicator to perform.

[0222] At 1820, the second device may communicate with the first device based on the transmitted indication of the operating mode. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be described as described with reference to Figures 9 to 12 The mmW band communicator described is performed.

[0223] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified, and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0224] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA 2000, Universal Terrestrial Radio Access (UTRA), etc. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions can be generally referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is generally referred to as CDMA2000 1xEV-DO, High Speed ​​Packet Data (HRPD), etc. UTRA includes broadband CDMA (W-CDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0225] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Professional are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Professional, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The technology described herein can be used for the systems and radio technologies mentioned herein as well as other systems and radio technologies. Although aspects of LTE, LTE-A, LTE-A Professional, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Professional, or NR terminology may be used in much of the description, the techniques described herein may be applicable beyond LTE, LTE-A, LTE-A Professional, or NR applications.

[0226] A macro cell covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE with a service subscription to a network provider. Compared to a macro cell, a small cell may be associated with a lower power base station, and the small cell may operate in the same or different frequency band as the macro cell (e.g., licensed, unlicensed, etc.). According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. For example, a pico cell may cover a small geographic area and may allow unrestricted access by a UE with a service subscription to a network provider. A femto cell may also cover a small geographic area (e.g., a residence) and may provide restricted access by a UE associated with the femto cell (e.g., a UE in a closed subscriber group (CSG), a UE for a user in a residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (e.g., two, three, four, etc.) cells and may also support communications using one or more component carriers.

[0227] The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, base stations may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0228] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0229] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed using a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0230] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or sent through a computer-readable medium as one or more instructions or codes. Other examples and implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented in software executed by a processor, hardware, firmware, hard wiring, or any combination of these. Features that implement the functions may also be physically located at various locations, including being distributed so that portions of the functions are implemented at different physical locations.

[0231] Computer readable medium includes both non-transitory computer storage medium and communication medium, and communication medium includes any medium that promotes the transmission of computer program from one place to another place.Non-transitory storage medium can be any available medium that can be accessed by general-purpose computer or special-purpose computer.By way of example and not limitation, non-transitory computer readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, disk storage or other magnetic storage device, or can be used for carrying or storing desired program code unit and can be accessed by general-purpose or special-purpose computer or general-purpose or special-purpose processor in the form of instruction or data structure.In addition, any connection is appropriately referred to as computer readable medium.For example, if software is to send from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of medium. As used herein, disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, wherein disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0232] As used herein (including in the claims), "or" as used in a list of items (e.g., a list of items ending with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an exemplary step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0233] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number, the second reference number being used to distinguish between similar components. If only the first reference number is used in the specification, the description applies to any of the similar components having the same first reference number, without regard to the second reference number or other subsequent reference numbers.

[0234] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration," rather than "preferred" or "having advantages over other examples." For the purpose of providing an understanding of the described techniques, the detailed description includes specific details. However, these techniques may be implemented without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0235] To enable those skilled in the art to implement or use the present disclosure, the description herein is provided. It will be apparent to those skilled in the art that various modifications to the present disclosure will be apparent, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but is given the widest scope consistent with the principles and novel features disclosed herein.

[0236] Aspect 1: A method for wireless communication at a first device, comprising: sending a capability to a second device indicating a status of a dynamic beam correspondence with the second device, the transmission of the capability being based at least in part on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communication with the second device, and the second set of antenna elements being used for uplink communication with the second device; receiving from the second device an indication of an operating mode to be used for communication with the second device, the operating mode being based at least in part on the capability; and communicating with the second device based at least in part on the received indication of the operating mode.

[0237] Aspect 2: According to the method of aspect 1, sending the capability includes: sending a time-related status of the dynamic beam correspondence with the second device to the second device.

[0238] Aspect 3: According to the method described in Aspect 2, the time-related state for the dynamic beam correspondence includes: an indication of the beam correspondence for the first transmission time interval, an indication of the absence of a beam correspondence for the second transmission time interval, or a combination thereof.

[0239] Aspect 4: According to the method according to any one of Aspects 2 or 3, the time-related state indicates a beam correspondence capability that changes for different transmission time intervals.

[0240] Aspect 5: According to the method according to aspect 4, the different transmission time intervals include different symbols, time slots or subframes.

[0241] Aspect 6: According to the method described in any one of Aspects 1 to 5, sending the capability includes: sending a first indication of a beam correspondence for one or more first transmission configuration indication states to the second device, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof.

[0242] Aspect 7: The method according to aspect 6, wherein the first indication of beam correspondence, the second indication of the absence of beam correspondence, or both are time-related.

[0243] Aspect 8: According to the method described in any one of Aspects 1 to 7, sending the capability includes: sending an indication to the second device that there is no beam correspondence; and sending to the second device a power saving, a reduction in temperature or temperature gradient, or both for the communication with the second device, wherein the power saving, the reduction in temperature or temperature gradient, or both are caused by the lack of beam correspondence.

[0244] Aspect 9: According to the method described in any one of Aspects 1 to 8, receiving the indication of the operating mode includes: receiving an indication from the second device of using one or more transmission configuration indication states, one or more subarrays, or a combination thereof, wherein the one or more transmission configuration states, the one or more subarrays, or a combination thereof have a full beam correspondence for the communication with the second device.

[0245] Aspect 10: The method according to Aspect 9, wherein the one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

[0246] Aspect 11: A method according to any one of Aspects 9 or 10, wherein the one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature or temperature gradient mode, or both.

[0247] Aspect 12: A method according to any one of Aspects 9 to 11, wherein the full beam correspondence includes the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the second device.

[0248] Aspect 13: According to the method of any one of aspects 1 to 12, the capability indicating the status for dynamic beam correspondence with the second device comprises a hybrid beam correspondence mode operation indication.

[0249] Aspect 14: According to the method of any one of aspects 1 to 13, the communication with the second device occurs at a frequency greater than 24.25 GHz.

[0250] Aspect 15: A method according to any one of Aspects 1 to 14, wherein the first device is a user equipment (UE) or a customer premises equipment (CPE) in a wireless communication system, and the second device is a base station, CPE, relay device, router, repeater, or integrated access and backhaul (IAB) node in the wireless communication system.

[0251] Aspect 16: An apparatus comprising at least one unit for performing the method according to any one of aspects 1 to 15.

[0252] Aspect 17: An apparatus for wireless communication, comprising: a processor; and a memory coupled to the processor, wherein the processor and the memory are configured to perform the method according to any one of aspects 1 to 15.

[0253] Aspect 18: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 15.

[0254] Aspect 19: A method for wireless communication at a second device, comprising: receiving a capability indicating a state of a dynamic beam correspondence between the first device and the second device from a first device communicating with the second device; sending an indication of an operating mode to be used for communication with the second device to the first device, the operating mode being based at least in part on the received capability; and communicating with the first device based at least in part on the sent indication of the operating mode.

[0255] Aspect 20: According to the method described in Aspect 19, receiving the capability includes: receiving a time-related state for the dynamic beam correspondence between the first device and the second device from the first device, and the time-related state indicates a beam correspondence capability that changes for different transmission time intervals.

[0256] Aspect 21: A method according to Aspect 20, wherein the time-related state for the dynamic beam correspondence includes: an indication of the beam correspondence for the first transmission time interval, an indication of the absence of a beam correspondence for the second transmission time interval, or a combination thereof.

[0257] Aspect 22: A method according to any one of Aspects 20 or 21, wherein the time-related status indicates a beam correspondence capability that changes for different transmission time intervals.

[0258] Aspect 23: The method according to Aspect 22, wherein the different transmission time intervals include different symbols, time slots or subframes.

[0259] Aspect 24: According to the method described in any one of Aspects 19 to 23, receiving the capability includes: receiving from the first device a first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof.

[0260] Aspect 25: The method according to aspect 24, wherein the first indication of beam correspondence, the second indication of the absence of beam correspondence, or both are time-dependent.

[0261] Aspect 26: According to the method described in any one of Aspects 19 to 25, receiving the capability includes: receiving an indication from the first device that there is no beam correspondence; and receiving from the first device a power saving, a reduction in temperature or temperature gradient, or both for the communication with the first device, wherein the power saving, the reduction in temperature or temperature gradient, or both are caused by the lack of beam correspondence.

[0262] Aspect 27: According to the method described in any one of Aspects 19 to 26, sending the indication of the operating mode includes: sending an indication to the first device of using one or more transmission configuration indication states, one or more subarrays, or a combination thereof, wherein the one or more transmission configuration indication states, the one or more subarrays, or a combination thereof have a full beam correspondence for the communication with the second device.

[0263] Aspect 28: The method according to Aspect 27, wherein the one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

[0264] Aspect 29: A method according to any one of Aspects 27 or 28, wherein the one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature or temperature gradient mode, or both.

[0265] Aspect 30: A method according to any one of Aspects 27 to 29, wherein the full beam correspondence includes the same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the second device.

[0266] Aspect 31: According to the method of any one of aspects 19 to 30, the capability indicating the status for dynamic beam correspondence with the second device comprises a hybrid beam correspondence mode operation indication.

[0267] Aspect 32: According to any one of aspects 19 to 31, the communication with the first device occurs at a frequency greater than 24.25 GHz.

[0268] Aspect 33: According to the method described in any one of Aspects 19 to 32, the first device includes a user equipment (UE) or a customer premises equipment (CPE) in a wireless communication system, and the second device includes a base station, CPE, relay device, router, repeater, or integrated access and backhaul (IAB) node in the wireless communication system.

[0269] Aspect 34: An apparatus comprising at least one unit for performing the method according to any one of aspects 19 to 33.

[0270] Aspect 35: An apparatus for wireless communication, comprising: a processor; and a memory coupled to the processor, wherein the processor and the memory are configured to perform the method according to any one of aspects 19 to 33.

[0271] Aspect 36: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to any one of aspects 19 to 33.

Claims

1. A method for wireless communication at a first device, comprising: transmitting, for a second device, a capability indicating a status of a dynamic beam correspondence with the second device, the transmission of the capability being based at least in part on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communications with the second device, and the second set of antenna elements being used for uplink communications with the second device; The capability further indicates at least a first beam correspondence capability for a first transmission time interval and a second beam correspondence capability for a second transmission time interval; receiving, from the second device, an indication of an operating mode to be used for communications with the second device, the operating mode being based at least in part on the capability; as well as Communicating with the second device based at least in part on the indication of the operating mode.

2. The method according to claim 1, sending the capability comprises: A time-related state for the dynamic beam correspondence with the second device is sent to the second device, and the time-related state for the dynamic beam correspondence includes at least the first beam correspondence capability for the first transmission time interval, or the second beam correspondence capability for the second transmission time interval, or both.

3. The method of claim 2, wherein the time-related status indicates a beam correspondence capability that changes for different transmission time intervals.

4. The method according to claim 1, wherein the first beam correspondence capability comprises an indication of a beam correspondence for the first transmission time interval, and the second beam correspondence capability comprises an indication of the absence of a beam correspondence for the second transmission time interval.

5. The method of claim 1, wherein the first transmission time interval and the second transmission time interval comprise one or more different symbols, time slots, or subframes.

6. The method of claim 1, sending the capability comprises: A first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof is sent to the second device.

7. The method according to claim 6, wherein: The first indication of beam correspondence, the second indication of absence of beam correspondence, or both are time-dependent.

8. The method of claim 1, sending the capability comprises: Sending, to the second device, an indication that no beam correspondence exists; as well as A power saving, a reduction in temperature or temperature gradient, or both, for the communication with the second device is sent to the second device, the power saving, the reduction in temperature or temperature gradient, or both being caused by the indication of the absence of a beam correspondence.

9. The method of claim 1 , receiving the indication of the operating mode comprising: An indication of using one or more transmission configurations indicating states, one or more subarrays, or a combination thereof, having a full beam correspondence for the communication with the second device is received from the second device.

10. The method according to claim 9, wherein: The one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

11. The method according to claim 9, wherein: The one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature mode, or both.

12. The method according to claim 9, wherein: The full beam correspondence includes a same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the second device.

13. The method of claim 1, the capability indicating the status for dynamic beam correspondence with the second device comprising a hybrid beam correspondence mode operation indication.

14. The method of claim 1, the communication with the second device occurs at a frequency greater than 24.25 GHz.

15. The method of claim 1, the first device comprises a user equipment (UE) or a customer premises equipment (CPE) in a wireless communication system, and the second device comprises a network device in the wireless communication system.

16. A method for wireless communication at a second device, comprising: receiving a capability indicating a state of a dynamic beam correspondence between the first device and the second device, the capability further indicating at least a first beam correspondence capability for a first transmission time interval and a second beam correspondence capability for a second transmission time interval; sending an indication of an operating mode to be used for communications with the second device, the operating mode being based at least in part on the capability; as well as Communicating is performed based at least in part on the indication of the operating mode.

17. The method of claim 16, receiving the capability comprising: Receive a time-related state for the dynamic beam correspondence between the first device and the second device, and the time-related state for the dynamic beam correspondence includes at least the first beam correspondence capability for the first transmission time interval, or the second beam correspondence capability for the second transmission time interval, or both.

18. The method of claim 17, wherein the time-dependent status indicates a beam correspondence capability that changes for different transmission time intervals.

19. The method of claim 16, wherein the first beam correspondence capability comprises an indication of a beam correspondence for the first transmission time interval, and the second beam correspondence capability comprises an indication of an absence of a beam correspondence for the second transmission time interval.

20. The method of claim 16, receiving the capability comprising: Receive from the first device a first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof, wherein the first indication of the beam correspondence, the second indication of the absence of a beam correspondence, or both are time-related.

21. The method of claim 16, receiving the capability comprising: receiving, from the first device, an indication that no beam correspondence exists; as well as Receiving from the first device a power savings, a reduction in temperature or temperature gradient, or both for communications with the first device, the power savings, the reduction in temperature or temperature gradient, or both resulting from the indication that no beam correspondence exists.

22. The method of claim 16, sending the indication of the operating mode comprising: Sending an indication of using one or more transmission configurations indicating a state, one or more subarrays, or a combination thereof, wherein the one or more transmission configurations indicating a state, the one or more subarrays, or a combination thereof have a full beam correspondence for communication with the first device.

23. The method according to claim 22, wherein: The one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

24. The method according to claim 22, wherein: The one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature mode, or both.

25. The method according to claim 22, wherein: The full beam correspondence includes a same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the first device.

26. An apparatus for wireless communication at a first device, comprising: one or more memories; as well as one or more processors coupled to the one or more memories and configured to; transmitting, for a second device, a capability indicating a status of a dynamic beam correspondence with the second device, the transmission of the capability being based at least in part on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communications with the second device, and the second set of antenna elements being used for uplink communications with the second device; The capability further indicates at least a first beam correspondence capability for a first transmission time interval and a second beam correspondence capability for a second transmission time interval; receiving, from the second device, an indication of an operating mode to be used for communications with the second device, the operating mode being based at least in part on the capability; as well as Communicating with the second device based at least in part on the indication of the operating mode.

27. The device according to claim 26, wherein: To send the capability, the one or more processors are configured to: A time-related state for the dynamic beam correspondence with the second device is sent to the second device, and the time-related state for the dynamic beam correspondence includes at least the first beam correspondence capability for the first transmission time interval, or the second beam correspondence capability for the second transmission time interval, or both.

28. The apparatus of claim 27, the time-dependent status indicating a beam correspondence capability that changes for different transmission time intervals.

29. The apparatus of claim 26, wherein the first beam correspondence capability comprises an indication of a beam correspondence for the first transmission time interval, and the second beam correspondence capability comprises an indication of an absence of a beam correspondence for the second transmission time interval.

30. The apparatus of claim 26, the first transmission time interval and the second transmission time interval comprise one or more different symbols, time slots, or subframes.

31. The device according to claim 26, wherein: To send the capability, the one or more processors are configured to: A first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof is sent to the second device.

32. The device according to claim 31, wherein The first indication of beam correspondence, the second indication of absence of beam correspondence, or both are time-dependent.

33. The apparatus of claim 26, wherein: To send the capability, the one or more processors are configured to: Sending, to the second device, an indication that no beam correspondence exists; as well as A power saving, a reduction in temperature or temperature gradient, or both, for the communication with the second device is sent to the second device, the power saving, the reduction in temperature or temperature gradient, or both being caused by the indication of the absence of a beam correspondence.

34. The apparatus of claim 26, wherein: To receive the indication of the operating mode, the one or more processors are configured to: An indication of using one or more transmission configurations indicating states, one or more subarrays, or a combination thereof, having a full beam correspondence for the communication with the second device is received from the second device.

35. The device according to claim 34, wherein The one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

36. The device according to claim 34, wherein The one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature mode, or both.

37. The device according to claim 34, wherein: The full beam correspondence includes a same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the second device.

38. The apparatus of claim 26, wherein: The capability indicating the status for dynamic beam correspondence with the second device comprises a hybrid beam correspondence mode operation indication.

39. The apparatus of claim 26, wherein: The communication with the second device occurs at a frequency greater than 24.25 GHz.

40. The apparatus of claim 26, the first device comprising a user equipment (UE) or a customer premises equipment (CPE) in a wireless communication system, and the second device comprising a network device in the wireless communication system.

41. An apparatus for wireless communication at a second device, comprising: one or more memories; as well as one or more processors coupled to the one or more memories and configured to; receiving a capability indicating a state of a dynamic beam correspondence between the first device and the second device, the capability further indicating at least a first beam correspondence capability for a first transmission time interval and a second beam correspondence capability for a second transmission time interval; sending an indication of an operating mode to be used for communications with the second device, the operating mode being based at least in part on the capability; as well as Communicating is performed based at least in part on the indication of the operating mode.

42. The device according to claim 41, wherein To receive the capability, the one or more processors are configured to: Receive a time-related state for the dynamic beam correspondence between the first device and the second device, and the time-related state for the dynamic beam correspondence includes at least the first beam correspondence capability for the first transmission time interval, or the second beam correspondence capability for the second transmission time interval, or both.

43. The apparatus of claim 42, the time-dependent status indicating a beam correspondence capability that changes for different transmission time intervals.

44. The apparatus of claim 41, wherein the first beam correspondence capability comprises an indication of a beam correspondence for the first transmission time interval, and the second beam correspondence capability comprises an indication of an absence of a beam correspondence for the second transmission time interval.

45. The apparatus of claim 41, wherein: To receive the capability, the one or more processors are configured to: Receive from the first device a first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof, wherein the first indication of the beam correspondence, the second indication of the absence of a beam correspondence, or both are time-related.

46. ​​The apparatus of claim 41, wherein: To receive the capability, the one or more processors are configured to: receiving, from the first device, an indication that no beam correspondence exists; as well as Receiving from the first device a power savings, a reduction in temperature or temperature gradient, or both for communications with the first device, the power savings, the reduction in temperature or temperature gradient, or both resulting from the indication that no beam correspondence exists.

47. The apparatus of claim 41, wherein: To send the indication of the operating mode, the one or more processors are configured to: Sending an indication of using one or more transmission configurations indicating a state, one or more subarrays, or a combination thereof, wherein the one or more transmission configurations indicating a state, the one or more subarrays, or a combination thereof have a full beam correspondence for communication with the first device.

48. The apparatus of claim 47, wherein: The one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

49. The apparatus of claim 47, wherein: The one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature mode, or both.

50. The apparatus of claim 47, wherein: The full beam correspondence includes a same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the first device.

51. A non-transitory computer-readable medium storing instructions for wireless communication at a first device, the instructions, when executed by one or more processors of the first device, causing the first device to: transmitting, for a second device, a capability indicating a status of a dynamic beam correspondence with the second device, the transmission of the capability being based at least in part on a first set of antenna elements being different from a second set of antenna elements, the first set of antenna elements being used for downlink communications with the second device, and the second set of antenna elements being used for uplink communications with the second device; The capability further indicates at least a first beam correspondence capability for a first transmission time interval and a second beam correspondence capability for a second transmission time interval; receiving, from the second device, an indication of an operating mode to be used for communications with the second device, the operating mode being based at least in part on the capability; as well as Communicating with the second device based at least in part on the indication of the operating mode.

52. The non-transitory computer readable medium of claim 51, wherein: causing the first device to send the instruction of the capability, and further causing the first device to: A time-related state for the dynamic beam correspondence with the second device is sent to the second device, and the time-related state for the dynamic beam correspondence includes at least the first beam correspondence capability for the first transmission time interval, or the second beam correspondence capability for the second transmission time interval, or both.

53. The non-transitory computer-readable medium of claim 52, the time-dependent status indicating a beam correspondence capability that changes for different transmission time intervals.

54. The non-transitory computer-readable medium of claim 51, wherein the first beam correspondence capability comprises an indication of a beam correspondence for the first transmission time interval, and the second beam correspondence capability comprises an indication that no beam correspondence exists for the second transmission time interval.

55. The non-transitory computer-readable medium of claim 51, the first transmission time interval and the second transmission time interval comprise one or more different symbols, time slots, or subframes.

56. The non-transitory computer readable medium of claim 51, wherein: causing the first device to send the instruction of the capability, and further causing the first device to: A first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof is sent to the second device.

57. The non-transitory computer readable medium of claim 56, wherein: The first indication of beam correspondence, the second indication of absence of beam correspondence, or both are time-dependent.

58. The non-transitory computer readable medium of claim 51, wherein: causing the first device to send the instruction of the capability, and further causing the first device to: Sending, to the second device, an indication that no beam correspondence exists; and A power saving, a reduction in temperature or temperature gradient, or both, for the communication with the second device is sent to the second device, the power saving, the reduction in temperature or temperature gradient, or both being caused by the indication of the absence of a beam correspondence.

59. The non-transitory computer readable medium of claim 51, wherein: causing the first device to receive the instruction of the indication of the operating mode, and further causing the first device to: An indication of using one or more transmission configurations indicating states, one or more subarrays, or a combination thereof, having a full beam correspondence for the communication with the second device is received from the second device.

60. The non-transitory computer readable medium of claim 59, wherein: The one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

61. The non-transitory computer readable medium of claim 59, wherein: The one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature mode, or both.

62. The non-transitory computer readable medium of claim 59, wherein: The full beam correspondence includes a same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the second device.

63. The non-transitory computer-readable medium of claim 51, the capability indicating the status for dynamic beam correspondence with the second device comprising a hybrid beam correspondence mode of operation indication.

64. The non-transitory computer readable medium of claim 51, the communication with the second device occurs at a frequency greater than 24.25 GHz.

65. The non-transitory computer-readable medium of claim 51, the first device comprising a user equipment (UE) or a customer premises equipment (CPE) in a wireless communication system, and the second device comprising a network device in the wireless communication system.

66. A non-transitory computer-readable medium storing instructions for wireless communication at a second device, the instructions, when executed by one or more processors of the second device, causing the second device to: receiving a capability indicating a state of a dynamic beam correspondence between the first device and the second device, the capability further indicating at least a first beam correspondence capability for a first transmission time interval and a second beam correspondence capability for a second transmission time interval; sending an indication of an operating mode to be used for communications with the second device, the operating mode being based at least in part on the capabilities; and Communicating is performed based at least in part on the indication of the operating mode.

67. The non-transitory computer readable medium of claim 66, wherein: causing the second device to receive the instruction of the capability, and further causing the second device to: Receive a time-related state for the dynamic beam correspondence between the first device and the second device, and the time-related state for the dynamic beam correspondence includes at least the first beam correspondence capability for the first transmission time interval, or the second beam correspondence capability for the second transmission time interval, or both.

68. The non-transitory computer-readable medium of claim 67, the time-dependent status indicating a beam correspondence capability that changes for different transmission time intervals.

69. The non-transitory computer-readable medium of claim 66, wherein the first beam correspondence capability comprises an indication of a beam correspondence for the first transmission time interval, and the second beam correspondence capability comprises an indication of an absence of a beam correspondence for the second transmission time interval.

70. The non-transitory computer readable medium of claim 66, wherein: causing the second device to receive the instruction of the capability, and further causing the second device to: Receive from the first device a first indication of a beam correspondence for one or more first transmission configuration indication states, a second indication of the absence of a beam correspondence for one or more second transmission configuration indication states, or a combination thereof, wherein the first indication of the beam correspondence, the second indication of the absence of a beam correspondence, or both are time-related.

71. The non-transitory computer readable medium of claim 66, wherein: causing the second device to receive the instruction of the capability, and further causing the second device to: receiving, from the first device, an indication that no beam correspondence exists; and Receiving from the first device a power savings, a reduction in temperature or temperature gradient, or both for communications with the first device, the power savings, the reduction in temperature or temperature gradient, or both resulting from the indication that no beam correspondence exists.

72. The non-transitory computer readable medium of claim 66, wherein: causing the second device to send the instruction of the indication of the operating mode, and further causing the second device to: Sending an indication of using one or more transmission configurations indicating a state, one or more subarrays, or a combination thereof, wherein the one or more transmission configurations indicating a state, the one or more subarrays, or a combination thereof have a full beam correspondence for communication with the first device.

73. The non-transitory computer readable medium of claim 72, wherein: The one or more transmission configuration indication states, the one or more subarrays, or a combination thereof are used for an initial access procedure, for a beam failure recovery procedure, or both.

74. The non-transitory computer readable medium of claim 72, wherein: The one or more transmission configurations indicate a state, the one or more subarrays, or a combination thereof for a low power mode, a high temperature mode, or both.

75. The non-transitory computer readable medium of claim 72, wherein: The full beam correspondence includes a same set of calibrated adjustments of beam weights, antenna amplitudes, antenna phases, or a combination thereof for both downlink beams and uplink beams for the communication with the first device.

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