Channel switching to channel associated with channel availability check

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a wireless communication device (WCD) may communicate with a peripheral device via a wireless connection during a time period, the wireless connection communicating using a first channel. The WCD may monitor a second channel during a concurrent time of the wireless connection, the second channel using a channel availability check (CAC) to obtain resources for communication, and send an indication to switch to the second channel for communication. In some aspects, the WCD may communicate with low latency requirements. Numerous other aspects are described.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 378,343, filed on October 4, 2022, entitled “CHANNEL SWITCHING TO ACHANNEL ASSOCIATED WITH A CHANNEL AVAILABILITY CHECK” and U.S. Non-Provisional Patent Application No. 18 / 300,906, filed on April 14, 2023, entitled “CHANNEL SWITCHING TO ACHANNEL ASSOCIATEDWITH ACHANNEL AVAILABILITY CHECK,” which are assigned to the assignee of this application. The disclosure of the prior application is considered a part of and incorporated by reference into this patent application. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications and techniques and apparatus for channel switching to a channel associated with a channel availability check. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, etc. These systems can be multiple access systems that can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). A wireless network (e.g., a wireless local area network (WLAN) such as a Wi-Fi (i.e., Institute of Electrical and Electronics Engineers (IEEE) 802.11) network) may include an access point (AP) that can communicate with one or more stations (STAs) or mobile devices. An AP can be coupled to a network such as the Internet and can enable mobile devices to communicate via the network (or communicate with other devices coupled to the access point). A wireless device can communicate bidirectionally with a network device. For example, in a WLAN, a STA can communicate with an associated AP via a downlink and an uplink. A "downlink" may refer to a communication link from an AP to a station, and an "uplink" may refer to a communication link from a station to an AP.

[0005] An AP can be coupled to a network such as the Internet and can enable mobile devices to communicate via the network (or communicate with other devices coupled to the access point). Wireless devices can communicate bidirectionally with network devices. For example, in a WLAN, a device can communicate with an associated AP via a downlink (e.g., a communication link from an AP to a device) and an uplink (e.g., a communication link from a device to an AP). A wireless personal area network (WPAN), which can include a Bluetooth connection, can provide a short-range wireless connection between two or more paired wireless devices. For example, a wireless device such as a cellular phone can utilize WPAN communication to exchange information such as audio signals with a wireless headset. Summary of the invention

[0006] Some aspects described herein relate to a method of wireless communication performed by a wireless communication device (WCD). The method may include: communicating with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication. The method may include: monitoring a second channel during a concurrent time of the wireless connection, the second channel using a channel availability check (CAC) to obtain resources for communication. The method may include: sending an indication to switch to the second channel for communication.

[0007] Some aspects described herein relate to a method of wireless communication performed by a peripheral device. The method may include: communicating with a WCD via a wireless connection during a time period, the wireless connection using a first channel for communication. The method may include: receiving an indication to switch to a second channel for communication, the second channel using a CAC to obtain resources for communication.

[0008] Some aspects described herein relate to a WCD for wireless communication. The wireless communication device may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to cause the WCD to communicate with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication. The one or more processors may be configured to cause the WCD to monitor a second channel during a concurrent time of the wireless connection, the second channel using a CAC to obtain resources for communication. The one or more processors may be configured to cause the WCD to send an indication to switch to the second channel for communication.

[0009] Some aspects described herein relate to a peripheral device for wireless communication. The peripheral device may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to cause the peripheral device to communicate with the WCD via a wireless connection during a time period, and the wireless connection uses a first channel to communicate. The one or more processors may be configured to cause the peripheral device to receive an indication to switch to a second channel to communicate, and the second channel uses a CAC to obtain resources for communication.

[0010] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a WCD. The instruction set, when executed by one or more processors of the WCD, may cause the WCD to communicate with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication. The instruction set, when executed by one or more processors of the WCD, may cause the WCD to monitor a second channel during a concurrent time of the wireless connection, the second channel using a CAC to obtain resources for communication. The instruction set, when executed by one or more processors of the WCD, may cause the WCD to send an indication to switch to the second channel for communication.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a peripheral device. The instruction set, when executed by one or more processors of the peripheral device, can cause the peripheral device to communicate with a WCD via a wireless connection during a time period, the wireless connection using a first channel for communication. The instruction set, when executed by one or more processors of the peripheral device, can cause the peripheral device to receive an indication to switch to a second channel for communication, the second channel using a CAC to obtain resources for communication.

[0012] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for communicating with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication. The apparatus may include: means for monitoring a second channel during a concurrent time of the wireless connection, the second channel using a CAC to obtain resources for communication. The apparatus may include: means for sending an indication to switch to the second channel for communication.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for communicating with a WCD via a wireless connection during a time period, the wireless connection using a first channel for communication. The apparatus may include: means for receiving an indication to switch to a second channel for communication, the second channel using a CAC to obtain resources for communication.

[0014] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user terminal equipment, base stations, network entities, network nodes, wireless communication devices, and / or processing systems as substantially described herein with reference to and as illustrated in the drawings and description.

[0015] The features and technical advantages of the examples according to the present disclosure have been outlined quite extensively above so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as the basis for modifying or designing other structures for performing the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and method of operation) together with the associated advantages will be better understood according to the following description. Each of the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0016] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that these aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments or other devices based on non-module components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / purchase equipment, medical devices and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The device incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to be able to understand the above-mentioned features of the present disclosure in detail, a more specific description of the above brief summary can be obtained by reference to various aspects, some of which are shown in the accompanying drawings. However, it should be noted that the drawings only show certain typical aspects of the present disclosure and should not be considered as limiting the scope thereof, because the description may allow other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 A wireless communication system (also referred to as a wireless local area network (WLAN) or Wi-Fi network) configured in accordance with the present disclosure is shown.

[0019] Figure 2An example of a wireless communication system supporting low-latency parameter updates for extending a personal audio network according to the present disclosure is shown.

[0020] Figure 3 An example of a target wake time (TWT) packet sequence according to the present disclosure is shown.

[0021] Figure 4 is a diagram of an example associated with channel switching to a channel associated with a channel availability check according to the present disclosure.

[0022] Figure 5 is a diagram of an example associated with channel switching to a channel associated with a channel availability check according to the present disclosure.

[0023] Figure 6 is a diagram of an example associated with channel switching to a channel associated with a channel availability check according to the present disclosure.

[0024] Figure 7 is a diagram illustrating an example process performed, for example, by a wireless communication device (WCD) according to the present disclosure.

[0025] Figure 8 is a diagram illustrating an example process performed, for example, by a peripheral device according to the present disclosure.

[0026] Fig. 9 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0027] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0028] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0029] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0030] In some networks, wireless communication devices (WCDs) can support applications associated with low latency or lossless audio to one or more other devices (e.g., one or more personal audio devices). For example, wireless communication devices can support applications and use cases associated with ultra-low latency (ULL), such as ULL games, or streaming lossless audio to one or more personal audio devices (e.g., peripherals) of a user. In a scenario where a user uses two peripherals, wireless communication devices can support extended personal audio networks (XPANs), and wireless communication devices can communicate with two peripherals via the extended personal audio network. In order to meet the latency or lossless criteria associated with an application or use case, XPAN devices can use target wake-up time (TWT) technology to communicate between wireless communication devices and peripherals. In some systems, peripherals and wireless communication devices can exchange one or more Bluetooth messages and implement complete TWT removal between each of the wireless communication device and the peripherals. This exchange of Bluetooth messages and TWT removal may introduce too much latency for some applications (such as ULL games or streaming lossless audio applications).

[0031] In some implementations, a WCD (which may be a handset or an access point (AP) (e.g., a soft AP (SAP))) and a set of peripheral devices (e.g., earbuds or audio devices) may use downlink audio data packets to carry updated TWT parameters or any other XPAN-related parameters that the wireless communication device and the peripheral devices may indicate via wireless signaling. Additionally or alternatively, the wireless communication device may embed the updated set of parameters in a padding portion of an audio data packet and may send the audio data packet to the peripheral devices. The peripheral devices may each acknowledge the audio data packet sent by the wireless communication device, and the wireless communication device may communicate according to the updated parameters based on receiving the acknowledgement from each of the peripheral devices.

[0032] Figure 1A wireless communication system 100 (also referred to as a wireless local area network (WLAN) or Wi-Fi network) configured in accordance with the present disclosure is shown. The wireless communication system 100 may include an AP 105 and a plurality of associated devices 115 (such as stations (STAs) or SAPs), which may represent devices such as mobile stations, personal digital assistants (PDAs), other handheld devices, netbooks, notebook computers, tablet computers, laptop computers, display devices (e.g., TVs, computer monitors, etc.), printers, etc. The AP 105 and associated devices 115 (e.g., associated STAs) may represent a basic service set (BSS) or an extended service set (ESS). A BSS includes devices that communicate with each other, and an ESS may include multiple BSSs or one or more BSSs and associated wired networks. Various devices 115 in the network are able to communicate with each other through the AP 105. Also shown is a coverage area 110 of the AP 105, which may represent a basic service area (BSA) of the wireless communication system 100. An extended network station (not shown) associated with the wireless communication system 100 may be connected to a wired or wireless distribution system, which may allow multiple APs 105 in the ESS to connect.

[0033] Although not in Figure 1 105 , but the device 115 may be located at the intersection of more than one coverage area 110 and may be associated with more than one AP 105. A single AP 105 and an associated group of devices 115 may be referred to as a BSS. An ESS is a group of connected BSSs. A distribution system (not shown) may be used to connect the APs 105 in an ESS. In some cases, the coverage area 110 of the AP 105 may be divided into sectors (also not shown). The wireless communication system 100 may include different types of APs 105 (e.g., metropolitan area networks, home networks, etc.) with varying and overlapping coverage areas 110. Two devices 115 may also communicate directly via a direct wireless communication link 125, regardless of whether the two devices 115 are in the same coverage area 110. Examples of direct wireless communication links 120 may include Wi-Fi direct connections, Wi-Fi tunnel direct link establishment (TDLS) links, and other group connections.

[0034] In some cases, a device 115 (or AP 105) may be detected by the central AP 105 but not by other devices 115 in the coverage area 110 of the central AP 105. For example, one device 115 may be at one end of the coverage area 110 of the central AP 105, while another device 115 may be at the other end. Thus, both devices 115 may communicate with the AP 105 but may not receive the transmissions of the other. This may result in conflicting transmissions of the two devices 115 in a contention-based environment (e.g., carrier sense multiple access with collision avoidance (CSMA / CA)) because the devices 115 may not refrain from transmitting over each other. Devices 115 whose transmissions are not identifiable but are within the same coverage area 110 may be referred to as hidden nodes. CSMA / CA may be supplemented by exchanging request to send (RTS) packets sent by the transmitting device 115 (or AP 105) and clear to send (CTS) packets sent by the receiving device 115 (or AP 105). This can warn other devices within range of the sender and receiver not to transmit for the duration of the primary transmission. Thus, RTS and / or CTS can help mitigate the hidden node problem.

[0035] The wireless communication system 100 may include an AP 105, a device 115 (e.g., which may be referred to as a source device or a central device), and a paired device 115 (e.g., which may be referred to as a sink device or a peripheral device) that implements WLAN communication (e.g., Wi-Fi communication) and / or Bluetooth communication. For example, the device 115 may include a cellular phone, a user terminal equipment (UE), a STA, a mobile station, a PDA, other handheld devices, a netbook, a notebook computer, a tablet computer, a laptop computer, or some other appropriate terminology. The paired device 115 may include a Bluetooth-enabled device that is capable of pairing with other Bluetooth-enabled devices (e.g., such as the device 115), which may include wireless audio devices (e.g., headphones, earbuds, speakers, earphones, headsets), display devices (e.g., TVs, computer monitors), microphones, meters, valves, etc.

[0036] "Bluetooth communication" may refer to a short-range communication protocol and may be used to connect and exchange information between a device 115 and a paired device 115 (e.g., between a mobile phone, a computer, a digital camera, a wireless headset, a speaker, a keyboard, a mouse or other input peripherals and similar devices). A Bluetooth system (e.g., aspects of the wireless communication system 100) may be organized using a central-peripheral relationship employing a time division duplex protocol having, for example, defined time slots of 625 microseconds, wherein transmissions alternate between a central device (e.g., the device 115) and one or more peripheral devices (e.g., the paired device 115). In some examples, "device 115" may generally refer to a central device, and "paired device 115" may refer to a peripheral device in the wireless communication system 100. Thus, in some examples, a device may be referred to as a device 115 or a paired device 115 based on the device's Bluetooth role configuration. That is, designating a device as a device 115 or a paired device 115 may not necessarily indicate a distinction in device capabilities, but may refer to or indicate the role that the device plays in the wireless communication system 100. Generally, “device 115” may refer to a wireless communication device capable of wirelessly exchanging data signals with another device (e.g., paired device 115), and “paired device 115” may refer to a device operating in a peripheral role, or to a short-range wireless communication device capable of exchanging data signals with device 115 (e.g., using the Bluetooth communication protocol).

[0037] A communication link 125 may be established between two Bluetooth-enabled devices (e.g., between device 115 and paired device 115), and communication or services may be provided (e.g., according to some Bluetooth profiles). The controller stack may be responsible for establishing a communication link 125, such as an asynchronous connection-oriented link (or an asynchronous connection-oriented connection), a synchronous connection (SCO)-oriented link (or a SCO connection), an extended synchronous connection (eSCO)-oriented link (or an eSCO connection), other logical transport channel links, and the like. For example, a Bluetooth connection may be an eSCO connection for voice calls (e.g., which may allow retransmissions), an asynchronous connection reduction (ACL) connection for music streaming (e.g., an Advanced Audio Distribution Profile (A2DP)), and the like. An eSCO packet may be sent in a predetermined time slot (e.g., 6 Bluetooth time slots for each eSCO). When a Bluetooth link is established, regular intervals between eSCO packets may be specified. An eSCO packet to / from a specific device (e.g., paired device 115) is acknowledged and may be retransmitted if not acknowledged during a retransmission window. In addition, an ACL connection (e.g., an A2DP profile) can be used to stream audio between the device 115 and a paired device 115. In some cases, an ACL connection can occupy 1, 3, or 5 Bluetooth time slots for data or voice. Other Bluetooth profiles supported by Bluetooth-enabled devices may include Bluetooth Low Energy (BLE) (e.g., providing significantly reduced power consumption and cost while maintaining similar communication range), a Human Interface Device (HID) profile (e.g., providing a low-latency link with low power requirements), and the like.

[0038] In some examples, the device may be capable of both Bluetooth and WLAN communications. For example, because each technology may provide different benefits or may improve the user experience under different conditions, WLAN and Bluetooth components may be co-located within the device so that the device may be able to communicate according to both Bluetooth and WLAN communication protocols. In some examples, Bluetooth and WLAN communications may share the same medium, such as the same unlicensed frequency medium. In such examples, the device 115 may support WLAN communications via the AP 105 (e.g., on the communication link 120). The AP 105 and associated devices 115 may represent a BSS or ESS. The various devices 115 in the network may be able to communicate with each other through the AP 105. In some cases, the AP 105 may be associated with a coverage area, which may represent a BSA.

[0039] Device 115 and AP 105 can communicate according to WLAN radio and baseband protocols for physical layer and MAC layer from IEEE 802.11 and versions (including but not limited to 802.11b, 802.11g, 802.11a, 802.11n, 802.11ac, 802.11ad, 802.11ah, 802.11ax, etc.). In other implementations, peer-to-peer connection or ad hoc network can be implemented within system 100, and devices can communicate with each other via communication link 120 (e.g., Wi-Fi Direct connection, Wi-Fi TDLS link, peer communication link or other peer or group connection). AP 105 can be coupled to a network (such as the Internet) and can enable device 115 to communicate via the network (or communicate with other devices 115 coupled to AP 105). Device 115 can communicate bidirectionally with network devices. For example, in a WLAN, the device 115 may communicate with an associated AP 105 via a downlink (eg, a communication link from the AP 105 to the device 115 ) and an uplink (eg, a communication link from the device 115 to the AP 105 ).

[0040] In some examples, content, media, audio, etc. exchanged between device 115 and paired device 115 may originate from a WLAN. For example, in some examples, device 115 may receive audio from AP 105 (e.g., via WLAN communications), and device 115 may then relay or pass the audio to paired device 115 (e.g., via Bluetooth communications). In some examples, certain types of Bluetooth communications (e.g., such as high-quality or high-definition (HD) Bluetooth) may require enhanced quality of service. For example, in some examples, delay-sensitive Bluetooth traffic may have a higher priority than WLAN traffic.

[0041] In some deployments, the wireless communication device may support applications associated with low latency or lossless audio to one or more other devices (e.g., one or more personal audio devices). For example, the wireless communication device may support applications and use cases associated with ULL, such as ULL gaming, or streaming lossless audio to one or more personal audio devices (e.g., peripheral devices) of a user. In a scenario where a user uses two peripheral devices (e.g., wireless earbud 130-a and wireless earbud 130-b), the wireless communication device may support XPAN, where the wireless communication device may communicate with the two peripheral devices via the XPAN.

[0042] In order to meet the latency or lossless criteria associated with an application or use case, an XPAN device can use TWT technology to communicate between a wireless communication device and a peripheral device. The initial or default TWT parameters can be set in the expectation of ideal (e.g., interference-free or nearly interference-free) conditions, and can be updated in response to changing channel conditions or changing concurrent situations at the wireless communication device. In some systems, the peripheral device and the wireless communication device can exchange one or more Bluetooth messages and implement complete TWT removal between each of the wireless communication device and the peripheral device. This exchange of Bluetooth messages and TWT removal may introduce too much latency for some applications (such as ULL games or streaming lossless audio applications).

[0043] In some implementations, a wireless communication device (which may be a device 115 (e.g., a handset) or an AP 105) and a set of peripheral devices may use downlink audio data packets to carry updated TWT parameters or any other XPAN-related parameters that the wireless communication device and peripheral devices may indicate via wireless signaling.

[0044] Figure 2 An example of a wireless communication system 200 that supports low-latency parameter updates for extending a personal audio network according to the present disclosure is shown. The wireless communication system 200 can implement aspects of the wireless communication system 100 or be implemented to implement aspects of the wireless communication system 100. For example, the wireless communication system 200 shows communications between the AP 105, the device 115 (e.g., a handset or handheld device), and the wireless earbuds 130-a and 130-b (e.g., examples of audio devices and / or peripherals) of the user 205, which can be, for example, Figure 1 Shown and referenced Figure 1 In some implementations, the device 115, the wireless earbud 130-a, and the wireless earbud 130-b may support a signaling-based mechanism according to which the device 115 may send an indication of a set of updated parameters to each of the wireless earbud 130-a and the wireless earbud 130-b via one or more audio data packets.

[0045] In some deployments, the device 115 may communicate with the AP 105 via one or both of the link 210-a and the link 210-b, which may be examples of infrastructure links between the AP 105 and the device 115. The link 210-a may be an example of a 2.4 GHz link between the AP 105 and the device 115, and the link 210-b may be an example of a 5 GHz link or a 6 GHz link between the AP 105 and the device 115. In addition, the device 115 may wirelessly communicate with each of the wireless earbud 130-a and the wireless earbud 130-b, where each of the wireless earbud 130-a and the wireless earbud 130-b may be associated with an XPAN of the device 115. For example, the device 115 may communicate with the wireless earbud 130-a via the link 215-a, and may communicate with the wireless earbud 130-b via the link 215-b, where the link 215-a and the link 215-b may be referred to or understood as XPAN links. Link 215-a may be an example of a 5 GHz link or a 6 GHz link, and link 215-b may be an example of a 5 GHz link or a 6 GHz link. Additionally, in some examples, device 115 may communicate with wireless earbud 130-a via communication link 220, which may be an example of a primary earbud. Communication link 220 may be an example of a Bluetooth link between device 115 and wireless earbud 130-a. Wireless earbud 130-a and wireless earbud 130-b (which may be an example of an auxiliary earbud) may communicate with each other via link 225, which may be an example of a Bluetooth link between wireless earbud 130-a and wireless earbud 130-b.

[0046] In some cases, the device 115, the wireless earbud 130-a, and the wireless earbud 130-b may support or belong to XPAN, and may use XPAN to support one or more applications or use cases, such as applications or use cases associated with latency or lossless audio constraints or criteria. For example, the device 115 may support one or more use cases of ULL gaming and streaming lossless audio to the wireless earbud 130-a and the wireless earbud 130-b (e.g., the personal device of the device 115). For such applications, the device 115 may be expected to keep the end-to-end latency below a relatively strict latency target (e.g., 40ms for ULL gaming). In addition, the device 115 may also be responsible for handling (e.g., gracefully handling) the coexistence of XPAN traffic (e.g., traffic to or from one or both of the wireless earbud 130-a and the wireless earbud 130-b) with other concurrent scenarios that may be initiated by the user 205 or the system. Such other concurrent scenarios may include scanning concurrency for channel selection, STA infrastructure link concurrency for online gaming or other services to or from the AP 105, or Neighbor Aware Networking (NAN) discovery and NAN data transfer, or any combination thereof.

[0047] The device 115 may be expected to meet latency constraints for various applications or use cases (e.g., ultra-low latency constraints for ULL gaming use cases) and also facilitate coexistence between XPAN and other concurrent scenarios on the device 115. In order to meet latency constraints associated with, for example, ULL gaming, power constraints of the wireless earbuds 130-a and 130-b, and / or power and concurrency constraints at the device 115, the device 115 may employ TWT technology for communication between the device 115 (which may act or function as a SAP) and each of the wireless earbuds 130-a and 130-b (which may act or function as a STA).

[0048] Example TWT parameters include TWT 230, TWT service interval (SI) 235, and TWT service period (SP) 240. TWT 230 may indicate or be associated with a timing synchronization function (TSF) time, which TSF time indicates the initiation or start of a first TWT session. TWT SI 235 may indicate a TWT interval, which may refer to the time difference between the initiation or start of two consecutive TWT sessions. TWT SP 240 may indicate the duration that one or both of the wireless earbud 130-a and the wireless earbud 130-b are awake during the TWT SI 235. In some aspects, the TWT SP 240 may be referred to as or understood as a TWT session. Figure 2As shown, the TWT SI 235 may indicate the time difference between the TWT SP 240-a and the TWT 240-b. The remaining time within the TWT SI 235 excluding the TWT SP 240 may be referred to or understood as the concurrency time 245, during which the device 115 may perform any operations (e.g., transmission or reception) associated with the concurrency scenario at the device 115. In other words, the difference between the XPAN TWT SI 235 and the XPAN TWT SP 240 may be the time left for the device 115 to support other concurrency (e.g., outside of any channel switching or software overhead).

[0049] For XPAN, each of the wireless earbud 130-a and the wireless earbud 130-b (which can be examples of TWT requester STAs) can initiate a TWT session with the device 115 (which can be an example of a TWT responder STA). In addition, for low latency use cases (e.g., ULL gaming use cases), the target end-to-end latency can be relatively strict (e.g., less than or equal to approximately 40ms), which can be bound, associated, or expected to a Wi-Fi latency within a specific range (e.g., within a range of less than 10ms). In order to achieve such Wi-Fi latency, the TWT SI 235 and the TWT SP 240 can be selected or set to specific values ​​(e.g., the TWT SI 235 can be set to 4ms, where the TWT SP 240 is 2ms). In addition, for lossless audio use cases, for example, the TWT SI 235 can be set to approximately 70ms, where the TWT SP 240 is approximately 23ms.

[0050] In some cases, the default or initial TWT parameter set for XPAN can be configured or set to the expected ideal (e.g., no interference or approximately no interference) condition (e.g., link condition, channel condition, or environmental condition). In some deployments, Wi-Fi channel conditions, concurrent situations of device 115, or XPAN constraints can change over time. Such changes can trigger TWT parameter updates, be associated with TWT parameter updates, or force TWT parameter updates. In addition, in applications or use cases associated with low latency (e.g., ULL games and streaming lossless audio), it can be expected that TWT parameter updates are performed with low latency to continue to meet XPAN constraints without compromising user experience. As an example, for XPAN game use cases, TWT SP 240 can be approximately 2ms. The communication overhead of updated TWT parameters or other information conveyed from device 115 to wireless earplugs 130-a and wireless earplugs 130-b can also be expected to be relatively small.

[0051] However, in some systems, the TWT parameter update process may be associated with relatively high latency. In addition, because a TWT session may be initiated by the wireless earbuds 130-a and 130-b (with default or initial parameters), any update to the TWT parameters triggered by a change in conditions at the device 115 may involve the device 115 sending the updated parameters to the wireless earbuds 130-a and 130-b, followed by a change in the TWT parameters at the wireless earbuds 130-a and 130-b.

[0052] The example TWT parameter update process may include a sequence of signaling steps involving one or more transmissions using a Bluetooth link, which may introduce relatively large delays. For example, the Wi-Fi subsystem (SS) of device 115 may send a request (e.g., a TWT parameter update request) to update one or more TWT parameters to the Bluetooth host (BT host) of device 115 after one or more conditions that trigger the change of one or more TWT parameters are detected. The BT host of device 115 may use the Bluetooth link to transmit an updated TWT parameter set to the BT host of the main earbud (e.g., wireless earbud 130-a). Such updated TWT configurations sent via the Bluetooth link may add a delay of approximately 80ms. The BT host of the main earbud may internally signal the new TWT parameters to the Wi-Fi SS of the main earbud, and the BT host of the main earbud may use the Bluetooth link to transmit the new TWT parameters to the BT host of the auxiliary earbud (e.g., wireless earbud 130-b). Such indications of TWT configurations via the Bluetooth link between the main earbud and the auxiliary earbud may add a delay of approximately 120ms. The BT host of the secondary earbud may internally signal the new TWT parameters to the Wi-Fi SS of the secondary earbud.

[0053] The Wi-Fi SS of the primary earbud may start a TWT session teardown and parameter update process. The TWT session teardown and parameter update process may involve transmitting a TWT teardown message and a TWT request message carrying new TWT parameters from the Wi-Fi SS of the primary earbud to the Wi-Fi SS of device 115 via an XPAN Wi-Fi link, and transmitting an acknowledgment (ACK) of the new TWT parameters with a TWT response message from the Wi-Fi SS of device 115 to the Wi-Fi SS of the primary earbud via the XPAN Wi-Fi link. The Wi-Fi SS of device 115 may update the BT host of device 115 that a new TWT session has been established with the primary earbud (e.g., the Wi-Fi SS may indicate the TWT session update to the BT host). Such a TWT session teardown and parameter update process may be additionally performed between device 115 and the auxiliary earbud.

[0054] According to such a TWT parameter update process, the device 115 may incur a relatively large delay between the time when the condition associated with the TWT parameter update is triggered on the device 115 and the time when the updated parameters take effect. For example, some components of the delay may include an approximately 80ms delay associated with the updated TWT configuration sent via the Bluetooth link between the device 115 and the primary earbud, an approximately 100ms delay associated with the sniff exit delay when the Bluetooth link between the two earbuds is in sniff mode, an approximately 20ms delay associated with the updated TWT configuration sent via the Bluetooth link between the two earbuds, and an approximately 5ms delay associated with the teardown of the TWT sessions from the two earbuds and the re-establishment of the new TWT session. Accordingly, such a TWT parameter update process may be associated with a total end-to-end delay of approximately 205ms for a one-time TWT parameter update, which may be too much for some applications or use cases (e.g., ULL gaming and streaming lossless audio use cases).

[0055] In some implementations, the device 115, the wireless earbuds 130-a, and the wireless earbuds 130-b may support a data packet generation-based and signaling-based mechanism according to which the device 115 may embed an indication of one or more updated parameters in one or more audio data packets that the device 115 may send to the wireless earbuds 130-a and the wireless earbuds 130-b. For example, if the device 115 detects a change that triggers a parameter update, or if the device 115 otherwise determines that a set of parameters is to be sent to the wireless earbuds 130-a and the wireless earbuds 130-b with low latency, the device 115 may embed the parameters in one or more downlink audio data packets and may send the one or more downlink audio data packets to the wireless earbuds 130-a and the wireless earbuds 130-b. In some implementations, the device 115 may send an indication of the parameter to the wireless earbud 130-a via a first audio data packet sent using a first Wi-Fi link (e.g., a first XPAN Wi-Fi link), and may send an indication of the parameter to the wireless earbud 130-b via a second audio data packet sent using a second Wi-Fi link (e.g., a second XPAN Wi-Fi link). The first audio data packet and the second audio data packet may include the same information or may include different information, and each may be an example of a physical layer convergence protocol (PLCP) protocol data unit.

[0056] The device 115 may transmit a set of one or more parameters to both the wireless earbud 130-a and the wireless earbud 130-b during an expected downlink data transmission or service (e.g., without using any additional or dedicated signaling). Based on the lack of additional over-the-air Bluetooth or Wi-Fi signaling between the device 115 and each of the wireless earbud 130-a and the wireless earbud 130-b and between the wireless earbud 130-a and the wireless earbud 130-b, the total end-to-end delay may be one or a relatively small amount of TWT SI 235, which may correspond to a delay of approximately 4 or 8 ms for some applications or use cases (e.g., ULL gaming). Such a delay of approximately 4 or 8 ms may represent a significant reduction in the end-to-end delay of TWT parameter renegotiation compared to other example parameter update processes (which may incur a delay of approximately 205 ms).

[0057] The device 115, the wireless earbuds 130-a, and the wireless earbuds 130-b may achieve up to approximately 50 times faster response times to any condition changes on the XPAN or infrastructure link associated with the device 115. In other words, the described techniques may enable or facilitate a flexible XPAN system that is capable of adapting to changing wireless conditions associated with the XPAN or infrastructure link at the device 115. Accordingly, the described techniques may be applied to any latency-sensitive application or use case that uses TWT as a communication protocol between potentially power-constrained devices, or any other use case that is associated with or anticipates low-latency XPAN parameter updates from a default or initial set of programmed values.

[0058] In addition, the described techniques may allow or facilitate simultaneous updating of one or more TWT parameters, and may additionally or alternatively be used to transmit any other information (XPAN related or otherwise) between the device 115, the wireless earbud 130-a, and the wireless earbud 130-b in a fast and efficient manner. For example, the parameters that may be transmitted between the device 115 and each of the wireless earbud 130-a and the wireless earbud 130-b may include a set of one or more TWT parameters, a received signal strength indicator (RSSI) measured at the device 115 or one or both of the wireless earbud 130-a and the wireless earbud 130-b that is expected to be transmitted to the device 115 or one or both of the wireless earbud 130-a and the wireless earbud 130-b, a channel switch indication or request, or a bearer switch indication or request. Such one or more TWT parameters may include any one or more of the TWT SI 235, the TWT SP 240, or the TWT start time (e.g., TWT 230). Furthermore, such a bearer switching indication or request may be a request to switch from an XPAN bearer to a Bluetooth bearer, or vice versa.

[0059] In some networks using XPAN communication, the network can support the coexistence of ULL games with end-to-end delay parameters together with concurrent scenarios with WCD having wireless links to audio devices and additional devices. In order to meet the delay requirements of ULL games, the power requirements of audio devices, and the power and concurrency requirements on WCD, TWT technology can be used for communication between WCD (e.g., acting as SAP) and audio devices (e.g., acting as STA). TWT can be the TSF time indicating the start of the first TWT session. SI indicates a TWT interval (e.g., the time difference between the start of two consecutive TWT sessions). SP indicates the duration that the audio device will wake up during SI. Concurrency time is the difference between SP and SI, and is the time remaining for WCD to support additional concurrency (e.g., communication via additional wireless links). The faster the game business successfully delivered between WCD and audio devices, the more concurrent time can be achieved on the basic link of WCD. For XPAN, each audio device (e.g., TWT requester STA) can initiate a TWT session with WCD (e.g., TWT responder STA).

[0060] XPAN gaming services may be associated with latency parameters to be reliably met, such as (<=2 ms). If an XPAN channel becomes congested, other Wi-Fi devices using the same channel may experience increased channel access latency for the XPAN service due to the busy channel, increased jitter due to varying latency, an increased number of retransmissions due to collisions, and / or increased interference when other Wi-Fi devices are out of clear channel assessment (CCA) range, etc.

[0061] If the channel congestion level increases so that the XPAN service cannot fit within the allocated TWT SP (e.g., 2 ms), the audio packets may be retransmitted in subsequent TWT SIs and audio packet loss may eventually occur. If the same conditions occur in subsequent TWT SIs, the audio packets may exceed the play time (TTP) limit, resulting in unacceptable audio gaps. In addition, performing traditional channel switching to scan for new channels may consume an amount of time that exceeds the allowed XPAN service periodicity and / or end-to-end delay.

[0062] Figure 3 Examples 300 and 350 of TWT packet sequences according to the present disclosure are shown. Figure 3 In the context of, a WCD can communicate with one or more audio devices. For example, a WCD can communicate with a first audio device and a second audio device.

[0063] As shown in example 300, the WCD may communicate with one or more audio devices using TWT technology. The TWT may include a TWT SI 302 associated with a periodicity of TWT communication opportunities. The TWT SI 302 may include a channel switching time 304 during which the WCD and / or one or more audio devices may be tuned to a channel associated with communicating together. The TWT SI 302 may include an active period 306 during which the WCD and the one or more audio devices exchange communications. After the active period, the TWT SI 302 may include concurrent time 308 during which the WCD and the audio devices are not scheduled to communicate with each other via TWT-based communications.

[0064] In example 300, the WCD may send a first audio communication (Audio 1) 310 to a first audio device. The first audio device may respond with an acknowledgement (ACK 1) 312 to indicate receipt of the first audio communication 310. Similarly, the WCD may send a second audio communication 314 (Audio 2) to a second audio device. The second audio device may respond with an acknowledgement (ACK 2) 316 to indicate receipt of the second audio communication 314.

[0065] The first audio device may send an uplink communication (VBC 1) 318 to the WCD. The WCD may respond with an acknowledgement (ACK 3) 320 to indicate receipt of the uplink communication 318. Similarly, the second audio device may send an uplink communication (VBC 2) 322 to the WCD. The WCD may respond with an acknowledgement (ACK 4) 316 to indicate receipt of the uplink communication 322.

[0066] In example 350, one or more audio devices may retransmit one or more communications based at least in part on the WCD not responding to the uplink communication with an ACK. In example 350, the TWT may include a TWT SI 352 associated with the periodicity of the TWT communication opportunity. The TWT SI 352 may include a channel switching time 354 during which the WCD and / or the one or more audio devices may be tuned to a channel associated with communicating together. The TWT SI 352 may include an active period 356 during which the WCD and the one or more audio devices exchange communications. After the active period, the TWT SI 352 may include a concurrent time 358 during which the WCD and the audio device are not scheduled to communicate with each other via TWT-based communications.

[0067] In example 350, the WCD may send a first audio communication (Audio 1) 360 to a first audio device. The first audio device may respond with an acknowledgement (ACK 1) 362 to indicate receipt of the first audio communication 360. Similarly, the WCD may send a second audio communication 364 (Audio 2) to a second audio device. The second audio device may respond with an acknowledgement (ACK 2) 366 to indicate receipt of the second audio communication 364.

[0068] The first audio device may send an uplink communication (VBC 1) 368 (Audio 1) to the WCD. The first audio device may not receive an acknowledgement indicating receipt of the uplink communication 368. Similarly, the second audio device may send an uplink communication (VBC 2) 370 to the WCD. The second audio device may not receive an acknowledgement indicating receipt of the uplink communication 370.

[0069] Based at least in part on not receiving an ACK from the WCD, the first audio device and the second audio device can retransmit the first uplink communication 368 and the second uplink communication 368 to the WCD. For example, the first audio device can send a retransmission of uplink communication (VBC1) 372 to the WCD. The WCD can respond with an acknowledgment (ACK 3) 374 to indicate receipt of the retransmission of uplink communication 372. Similarly, the second audio device can send a retransmission of uplink communication (VBC 2) 376 to the WCD. The WCD can respond with an acknowledgment (ACK 3) 378 to indicate receipt of the retransmission of uplink communication 376.

[0070] like Figure 3 As shown in , when retransmission occurs, the TWT active period can be longer and the concurrency time can be shorter.

[0071] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0072] In some aspects described herein, a WCD may use a dynamic frequency selection (DFS) channel for a wireless link (e.g., using XPAN) with a peripheral device (e.g., an audio device or an extended reality (XR) device). The DFS channel may be associated with a channel availability check to obtain communication resources of the DFS channel (e.g., to determine whether the channel is already occupied). The DFS channel may be associated with radar-based signaling, military-based communications, or satellite-based communications, which may have a higher priority than communications between the WCD and the peripheral device. However, the DFS channel may be unoccupied, during which time the WCD may use the communication resources of the DFS channel. In some aspects, the DFS channel may be associated with a reduced transmission power limit (e.g., to reduce or avoid interference with higher priority communications). In this way, other WCDs and / or peripheral devices may occupy the same communication resources of the DFS at a relatively close distance (e.g., closer than in Bluetooth) without interfering with communications between the WCD and the peripheral device.

[0073] In some aspects, the WCD can meet the DFS CAC requirements while meeting the XPAN latency requirements based at least in part on using pre-CAC operations for some regulatory domains (e.g., European Telecommunications Standards Institute (ETSI)) or using multiple transmission chains to monitor DFS channels during communications via the current channel (e.g., additional DFS channels or non-DFS channels). The WCD can dynamically switch between DFS channels and / or non-DFS channels when they are available. In some aspects, a bias toward using DFS channels can be applied when selecting a channel for communication.

[0074] In an example using pre-CAC, the WCD may perform CAC on multiple DFS channels (e.g., at boot time). The WCD may add a clean (e.g., unoccupied) DFS channel to a list of available channels. When an XPAN session begins, the WCD may perform an initial channel selection to pick the best available DFS channel (e.g., based at least in part on Wi-Fi scan results). The WCD may perform in-service monitoring (ISM) while operating on a DFS channel. If the WCD detects a higher priority communication (e.g., a radar signal) while operating a DFS channel, the WCD may start an XPAN channel movement process to evacuate the DFS channel to another available DFS channel (if any) or to any other channel (e.g., within a maximum allowed time of 10s).

[0075] In an example where multiple transmission chains are used to monitor DFS channels, the WCD may start XPAN on a non-DFS channel. For a high-band simultaneous (HBS) RD (e.g., a device with a radio filter that supports both 5 GHz and 6 GHz channels), XPAN may start on 6 GHz to allow DFS scanning on the 5 GHz radio. For a dual-band simultaneous (DBS) WCD (e.g., with 2.4 GHz and 5 GHz or 6 GHz) RD (e.g., without a single-band simultaneous (SBS) filter), XPAN may start on 2 GHz to allow DFS scanning on the 5 GHz radio. A second SBS radio (e.g., an additional transmission chain) may scan non-overlapping DFS channels for radar and / or available resources. After a CAC duration (e.g., 1 minute-10 minutes (e.g., in weather and / or military channels)), the WCD may move to ISM on a DFS channel.

[0076] If the initial XPAN non-DFS channel becomes congested, a channel switching mechanism can be used to move the XPAN to a clean DFS channel (based on the Wi-Fi congestion level on the DFS channel).

[0077] In some aspects, in order to have a seamless XPAN channel switch (to or from a DFS channel), the XPAN delay can be gradually increased to account for the channel switch time. Once the delay increases, the WCD can send a channel switch notification to the peripheral device (e.g., to notify the peripheral device of an upcoming channel change). The WCD can send the channel switch notification to the peripheral device by delivering a traffic indication map (DTIM) beacon or by a vendor specific action frame, etc.

[0078] Based at least in part on using the DFS channel for the XPAN wireless link, the WCD can select a clean channel for XPAN that has a reduced chance of high interference levels (e.g., based at least in part on the DFS channel having lower transmit power regulatory limits and lower associated interference levels). Additionally or alternatively, the WCD can reduce the need for frequent channel switching, which can avoid disruptions to XPAN quality that might otherwise be caused by increased latency and / or jitter. Furthermore, the WCD can improve XPAN and / or XR reliability for low latency applications.

[0079] Figure 4 4 is a diagram of an example 400 associated with channel switching to a channel associated with a channel availability check (CAC) according to the present disclosure. Figure 4As shown in , a WCD (e.g., a STA, a handset, a UE, or a host device, etc.) can communicate with a peripheral device (e.g., an earbud or another audio device, a wireless keyboard or other input device, an extended reality device, and / or a video device, etc.). In some aspects, the WCD and the peripheral device can communicate with each other. Figure 4 The operations shown are performed with a wireless connection already established.

[0080] As shown at reference numeral 405, the WCD and the peripheral device may communicate using a first channel during a time period. The WCD and the peripheral device may communicate using a TWT configuration, Bluetooth, or WiFi, etc. In some aspects, the first channel uses CAC (e.g., based at least in part on being a DFS channel) or may be a non-CAC channel (e.g., a TWT channel, a Bluetooth channel, or a WiFi channel).

[0081] As shown in reference numeral 410, the WCD can monitor the second channel during the concurrent time of using the first channel to communicate with the peripheral device. In some aspects, the second channel may need CAC before using the second channel. In some aspects, the second channel can be associated with radar-based signaling, military-based communication, or satellite-based communication, etc. In some aspects, the second channel can be associated with a transmission power limit that is less than the transmission power limit associated with the first channel. For example, the transmission power limit can be at least partially based on reducing the coverage of the signaling in the second channel to reduce the amount of interference and / or noise on the second channel. In this way, if the second channel is available (e.g., not used in a higher priority communication), the second channel can be suitable for communication between the WCD and the peripheral device.

[0082] In some aspects, the WCD may monitor the second channel using a first transmission chain or a first radio, wherein the first transmission chain or the first radio is different from a second transmission chain or a second radio used to communicate using the first channel during the time period. For example, the WCD may tune the second transmission chain and / or the second radio to the first channel and may tune the first transmission chain and / or the first radio to the second channel to check for availability.

[0083] As shown at reference numeral 415, the WCD may perform CAC to obtain resources for communicating via the second channel. In some aspects, the WCD may identify the second channel as available based at least in part on the CAC. In some aspects, the WCD may monitor the second channel and / or perform CAC (e.g., based at least in part on the CAC) before sending an indication to switch to the second channel.

[0084] As indicated by reference numeral 420, the WCD may select the second channel. In some aspects, the WCD may select the second channel based at least in part on performance of CAC. In some aspects, the WCD may select the second channel from the set of DFS channels based at least in part on CAC and / or monitoring noise on the second channel. In some aspects, the WCD may select the second channel based at least in part on congestion of the second channel, a bias toward using a channel having a channel type of the second channel (e.g., a bias toward using a channel that utilizes CAC to obtain resources for communication).

[0085] In some aspects, the WCD may select a second channel and switch to the second channel based at least in part on obtaining resources for the second channel, wherein obtaining resources for the second channel is based at least in part on CAC and / or congestion or other communication metrics using the first channel. For example, the WCD may monitor the second channel and / or perform CAC on the second channel based at least in part on congestion of the first channel failing to meet a threshold.

[0086] As indicated by reference numeral 425, the WCD may send an indication to switch to the second channel and the peripheral device may receive the indication to switch to the second channel. In some aspects, the WCD may send the indication to switch to the second channel via a channel switch announcement (CSA) or a vendor specific action frame.

[0087] In some aspects, before or in conjunction with sending an indication to switch to the second channel, the WCD may provide an indication of increasing the latency of communications via the first channel (e.g., communications sent and / or received via the first channel). For example, the WCD may provide an indication of increasing the latency of communications to an audio subsystem of the WCD. In this manner, communications between the WCD and the peripheral device may not be interrupted during the switch to the second channel.

[0088] In some aspects, the WCD may send (eg, within the indication to switch to the second channel) an indication of parameters of the second channel and / or an indication of a time to begin using the second channel.

[0089] As shown at reference numeral 430, the WCD and the peripheral device may communicate using a second channel.

[0090] As shown at reference numeral 435, the WCD may monitor for higher priority communications (e.g., having a higher priority than the priority of communications between the WCD and the peripheral device). For example, the WCD may monitor for radar signaling within the second channel. The WCD may be configured to vacate the channel based at least in part on detecting the higher priority communications.

[0091] As shown in reference numeral 440, the WCD may send an indication to switch to the third channel, and the peripheral device may receive an indication to switch to the third channel. For example, based at least in part on detecting a higher priority communication on the second channel, the WCD may be configured to vacate the second channel. In some aspects, the third channel may request CAC and / or may be a DFS channel. In some aspects, the third channel may be a non-DFS channel, such as an XPAN channel, a Bluetooth channel, or a Wi-Fi channel.

[0092] Based at least in part on using the DFS channel for the XPAN wireless link, the WCD can select a clean channel for XPAN that has a reduced chance of high interference levels (e.g., based at least in part on the DFS channel having lower transmit power regulatory limits and lower associated interference levels). Additionally or alternatively, the WCD can reduce the need for frequent channel switching, which can avoid disruptions to XPAN quality that might otherwise be caused by increased latency and / or jitter. Furthermore, the WCD can improve XPAN and / or XR reliability for low latency applications.

[0093] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0094] Figure 5 is a diagram of an example 500 associated with channel switching to a channel associated with CAC according to the present disclosure. Figure 5 In the context of , a WCD (e.g., a STA, a handset, a UE, or a host device, etc.) can communicate with a peripheral device (e.g., an earbud or another audio device, a wireless keyboard or other input device, an extended reality device, and / or a video device, etc.). In some aspects, the WCD and the peripheral device can communicate with each other. Figure 5 The operations shown are performed with a wireless connection already established.

[0095] The WCD may run CAC on the DFS channel, as indicated by reference numeral 505. For example, the WCD may perform CAC when booting the WCD or turning on a transmit chain or radio of the WCD.

[0096] In some aspects, the WCD may start on a non-DFS channel. For example, XPAN may start on a non-DFS channel. For a WCD capable of operating simultaneously in two high frequency bands (e.g., two bands within the 5 GHz and / or 6 GHz bands) using an RF filter (e.g., a high band simultaneous (HBS) WCD) reference design (RD) (with a single band simultaneous (SBS) filter), XPAN may start on a 6 GHz channel to allow DFS scanning on the 5 GHz radio. For a dual band simultaneous (DBS) WCD (e.g., with 2.4 GHz and 5 GHz or 6 GHz) RD (without an SBS filter), XPAN may start on 2 GHz to allow DFS scanning on the 5 GHz radio. In some aspects, different SBS radios may be used to scan non-overlapping DFS channels of the radar.

[0097] In some aspects, if an initial XPAN non-DFS channel becomes congested, a channel switching mechanism may be used to move XPAN communications to a clean DFS channel (eg, based on Wi-Fi congestion levels on the DFS channel).

[0098] As indicated at reference numeral 510, the WCD may add a clean (eg, unoccupied) DFS channel to a list of available channels.

[0099] As indicated by reference numeral 515, the WCD may determine whether the DFS available channel list is non-empty. For example, the WCD may determine whether the DFS available channel list is non-empty when starting an XPAN session or during an XPAN session (e.g., based at least in part on detecting a trigger to switch from a current channel).

[0100] As indicated by reference numeral 520, if the DFS available channel list is not non-empty, the WCD may perform channel selection and / or switching using a non-DFS channel list.

[0101] As indicated by reference numeral 525, the WCD may use the DFS available channel list to perform channel selection and / or switching.

[0102] The WCD may perform ISM while operating on a DFS channel, as indicated by reference numeral 530. For example, the WCD may monitor the DFS channel for higher priority communications.

[0103] The WCD may determine if a radar signal or other higher priority signal is present on the DFS channel, as indicated by reference numeral 535. If not, the WCD may continue to monitor the DFS channel with the ISM.

[0104] As indicated at reference numeral 540, if the WCD does detect radar signaling on a DFS channel, the WCD may remove the channel from the DFS available channel list.

[0105] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.

[0106] Figure 6 is a diagram of an example 600 associated with channel switching to a channel associated with CAC according to the present disclosure. Figure 6 In the context of , a WCD (e.g., a STA, a handset, a UE, or a host device, etc.) can communicate with a peripheral device (e.g., an earbud or another audio device, a wireless keyboard or other input device, an extended reality device, and / or a video device, etc.). In some aspects, the WCD and the peripheral device can communicate with each other. Figure 6 The operations shown are performed with a wireless connection already established.

[0107] The WCD may perform initial XPAN channel selection, as indicated by reference numeral 605. In this example, the WCD may start on an XPAN channel instead of starting on a DFS channel.

[0108] As indicated by reference numeral 610, the WCD may perform channel congestion monitoring. For example, the WCD may monitor congestion on XPAN channels and non-XPAN channels (eg, DFS channels). In some aspects, the WCD may maintain a CCA busy counter for the channel.

[0109] As indicated by reference numeral 615, the WCD may determine whether XPAN congestion meets a threshold for switching off the XPAN channel.

[0110] As indicated by reference numeral 620, if the XPAN congestion does not meet the threshold for switching away from the XPAN channel, the WCD may maintain the current XPAN channel for ongoing communications.

[0111] As indicated by reference numeral 625, if the XPAN congestion meets a threshold for switching off the XPAN channel, the Wi-Fi SS of the WCD may request a higher latency for the XPAN.

[0112] As shown at reference numeral 630, the audio SS of the WCD may increase in latency.

[0113] As indicated by reference numeral 635, the WCD may send an action frame to the audio device to indicate a channel switch.

[0114] As indicated by reference numeral 640, the firmware FW, software and / or hardware of the WCD may issue a channel switch command.

[0115] As indicated at reference numeral 645, the WCD may store calibration and radio frequency analog (RFA) and / or baseband (BB) registers for the new XPAN channel.

[0116] As indicated at reference numeral 650, the WCD may establish communications on the new XPAN channel.

[0117] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.

[0118] Figure 7 7 is a diagram illustrating an example process 700 performed, for example, by a WCD in accordance with the present disclosure. Example process 700 is an example of a WCD (eg, WCD 115) performing operations associated with dynamic start times for periodic communications of an audio device.

[0119] like Figure 7 As shown in , in some aspects, process 700 may include: communicating with a peripheral device via a wireless connection during a time period, the wireless connection communicating using a first channel (block 710). For example, as described above, a WCD (e.g., using Fig. 9 The communication manager 908, receiving component 902 and / or sending component 904 depicted in FIG. 1 can communicate with the peripheral device via a wireless connection during a time period, and the wireless connection communicates using a first channel.

[0120] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include monitoring a second channel during a concurrent time of the wireless connection, the second channel using a channel availability check (CAC) to obtain resources for communication (block 720). For example, as described above, the WCD (e.g., using Fig. 9 The transmitting component 904 depicted in FIG. 1 monitors a second channel during a concurrent time of the wireless connection, and the second channel uses CAC to obtain resources for communication.

[0121] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include sending an indication to switch to a second channel for communication (block 730). For example, as described above, a WCD (e.g., using Fig. 9 The sending component 904 depicted in the figure can send an indication to switch to a second channel for communication.

[0122] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0123] In a first aspect, the second channel is associated with radar-based signaling, military-based communications, or satellite-based communications.

[0124] In a second aspect, alone or in combination with the first aspect, the second channel is associated with a transmission power limit that is less than a transmission power limit associated with the first channel.

[0125] In a third aspect, alone or in combination with one or more of the first and second aspects, process 700 includes monitoring the second channel for availability before sending the indication of the switch.

[0126] In a fourth aspect, alone or in combination with one or more of the first to third aspects, monitoring the second channel comprises one or more of: monitoring the second channel using a first transmission chain or a first radio device that is different from a second transmission chain or a second radio device used to communicate using the first channel during the time period, or monitoring the second channel during concurrent times of the wireless connection.

[0127] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 700 includes performing CAC before sending an indication to switch to a second channel, and selecting the second channel from one or more available channels based at least in part on the performance of CAC.

[0128] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, selecting the second channel comprises selecting the second channel based at least in part on one or more of: congestion of the second channel, a bias toward using a channel that utilizes CAC to obtain resources for communication.

[0129] In a seventh aspect, alone or in combination with one or more of aspects one to six, process 700 includes communicating using a second channel, monitoring communications having a higher priority than the priority of the wireless connection, and sending an indication to switch to a third channel to communicate based at least in part on detecting communications having a higher priority than the priority of the wireless connection in the second channel.

[0130] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 700 includes: providing an indication to increase latency for communication via the first channel prior to sending an indication to switch to the second channel for communication. In some aspects, the WCD may first increase the latency internal to the WCD, and once the latency at the WCD is increased, the WCD may communicate an updated value of the TWT SI to the peripheral device if the current TWT SI is insufficient to perform the channel switch.

[0131] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, sending an indication to switch to the second channel for communication includes sending the indication via a DTIM, or sending the indication via a vendor specific action frame.

[0132] In a tenth aspect, alone or in combination with one or more of aspects one to nine, sending a switch to a second channel for communication is based at least in part on one or more of: at least in part on using CAC to obtain resources for the second channel, or congestion of the first channel.

[0133] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the indication of switching to the second channel for communication includes one or more of: an indication of parameters of the second channel, or an indication of a time to start using the second channel.

[0134] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the first channel uses CAC to obtain resources for communication, or wherein the first channel does not use CAC.

[0135] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the peripheral device includes one or more of an audio device, an extended reality device, or a video display device.

[0136] although Figure 7 Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 700. Additionally or alternatively, two or more blocks of the blocks of process 700 may be performed in parallel.

[0137] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a peripheral device in accordance with the present disclosure. The example process 800 is an example of a peripheral device (e.g., wireless earbuds 130, XR device, and / or audio device) performing operations associated with a channel switch to a channel associated with a channel availability check. For example, the channel switch process may be initiated by a WCD (e.g., acting as a SAP). Once the WCD finds a new DFS or non-DFS channel to switch to, the WCD indicates the associated information to the peripheral device, and the peripheral device follows the instructions from the WCD.

[0138] like Figure 8 As shown, in some aspects, process 800 may include communicating with a WCD via a wireless connection during a time period, the wireless connection communicating using a first channel (block 810). For example, as described above, a peripheral device (e.g., using Fig.10The communication manager 1008, receiving component 1002, and / or sending component 1004 depicted in FIG. 1004 may communicate with the WCD via a wireless connection during a time period, the wireless connection communicating using a first channel.

[0139] like Figure 8 As further shown in FIG. 8 , in some aspects, process 800 may include receiving an indication to switch to a second channel for communication, the second channel using CAC to obtain resources for communication (block 820). For example, as described above, a peripheral device (e.g., using Fig.10 The receiving component 1002 depicted in FIG. 1 can receive an indication to switch to a second channel for communication, the second channel using CAC to obtain resources for communication.

[0140] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0141] In a first aspect, the second channel is associated with radar-based signaling, military-based communications, or satellite-based communications.

[0142] In a second aspect, alone or in combination with the first aspect, the second channel is associated with a transmission power limit that is less than a transmission power limit associated with the first channel.

[0143] In a third aspect, alone or in combination with one or more of the first and second aspects, process 800 includes communicating using a second channel and receiving an indication to switch to a third channel to communicate based at least in part on detecting communications having a higher priority than the wireless connection in the second channel.

[0144] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 800 includes: before receiving an indication to switch to a second channel for communication, receiving an indication to increase a latency of communication via the first channel.

[0145] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, receiving an indication to switch to a second channel for communication comprises: receiving the indication via a DTIM, or receiving the indication via a vendor specific action frame.

[0146] In a sixth aspect, alone or in combination with one or more of aspects one to five, receiving an indication to switch to a second channel for communication is based at least in part on one or more of: obtaining resources for the second channel based at least in part on CAC, or congestion of the first channel.

[0147] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the indication of switching to the second channel for communication comprises one or more of: an indication of parameters of the second channel, or an indication of a time to start using the second channel.

[0148] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the first channel uses CAC to obtain resources for communication, or wherein the first channel does not use CAC.

[0149] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the peripheral device comprises one or more of an audio device, an extended reality device, or a video display device.

[0150] although Figure 8 Example blocks of process 800 are shown, but in some aspects, process 800 may include Figure 8 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be performed in parallel.

[0151] Fig. 9 is a diagram of an example apparatus 900 for wireless communication according to the present disclosure. Apparatus 900 may be a WCD, or a WCD may include apparatus 900. In some aspects, apparatus 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 900 may communicate with another apparatus 906 (such as a peripheral device, an earbud, an audio device, and / or another wireless communication device) using receiving component 902 and transmitting component 904. As further shown, apparatus 900 may include a communication manager 908.

[0152] In some aspects, the apparatus 900 may be configured to perform one or more operations described herein. Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 The process 700. In some aspects, Fig. 9 The apparatus 900 and / or one or more components shown in FIG. 1 may include a combination of Figure 2 Additionally or alternatively, Fig. 9 One or more of the components shown in the figure may be combined with Figure 2Additionally or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0153] The receiving component 902 may receive communications (such as reference signals, control information, data communications, or combinations thereof) from the apparatus 906. The receiving component 902 may provide the received communications to one or more other components of the apparatus 900. In some aspects, the receiving component 902 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the apparatus 900. In some aspects, the receiving component 902 may include combining Figure 2 One or more antennas, modems, demodulators, multiple-input multiple-output (MIMO) detectors, receive processors, controllers / processors, memories, or combinations thereof of the described WCDs.

[0154] Transmit component 904 may transmit communications (such as reference signals, control information, data communications, or a combination thereof) to device 906. In some aspects, one or more other components of device 900 may generate communications and may provide the generated communications to transmit component 904 for transmission to device 906. In some aspects, transmit component 904 may perform signal processing (such as filtering, amplifying, modulating, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 906. In some aspects, transmit component 904 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described WCD. In some aspects, transmit component 904 can be co-located with receive component 902 in a transceiver.

[0155] The communication manager 908, the receiving component 902 and / or the sending component 904 can communicate with the peripheral device via a wireless connection during a time period, the wireless connection using the first channel for communication. The sending component 904 can send an indication of switching to a second channel for communication, the second channel using CAC to obtain resources for communication.

[0156] Communications manager 908 and / or receiving component 902 can monitor the second channel for availability before sending an indication to switch.

[0157] The communications manager 908 and / or receiving component 902 can perform CAC prior to sending the indication to switch to the second channel.

[0158] The communication manager 908 may select the second channel from the available one or more available channels based at least in part on the execution of the CAC.

[0159] The communication manager 908, the receiving component 902, and / or the sending component 904 can communicate using the second channel.

[0160] The communication manager 908 and / or receiving component 902 can monitor for communications having a higher priority than the priority of the wireless connection.

[0161] Transmitting component 904 can transmit an indication to switch to a third channel for communication based at least in part on detecting in the second channel a communication having a higher priority than the wireless connection.

[0162] The sending component 904 can send an indication to increase latency for communications via the first channel prior to sending an indication to switch to the second channel for communications.

[0163] Fig. 9 The number and arrangement of components shown in the figure are provided as examples. In practice, there may be Fig. 9 The components shown in the figure may include additional components, fewer components, different components, or differently arranged components. Fig. 9 Two or more components shown in may be implemented in a single component, or Fig. 9 The single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Fig. 9 A set (one or more) of components shown in the figure may perform the operations described as being performed by Fig. 9 One or more functions performed by another set of components shown in FIG.

[0164] Fig.10 1 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a second audio device, or the second audio device may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a sending component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as another peripheral device, WCD, and / or another wireless communication device) using receiving component 1002 and sending component 1004. As further shown, apparatus 1000 may include a communication manager 1008.

[0165] In some aspects, the apparatus 1000 may be configured to perform one or more operations described herein. Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 The process 800. In some aspects, Fig.10 The apparatus 1000 and / or one or more components shown in the drawings may include a combination of Figure 2 Additionally or alternatively, Fig.10 One or more of the components shown in the figure may be combined with Figure 2 Additionally or alternatively, one or more of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0166] The receiving component 1002 may receive communications (such as reference signals, control information, data communications, or a combination thereof) from the apparatus 1006. The receiving component 1002 may provide the received communications to one or more other components of the apparatus 1000. In some aspects, the receiving component 1002 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the apparatus 1000. In some aspects, the receiving component 1002 may include combining Figure 2 The described peripherals may include one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.

[0167] The transmitting component 1004 may transmit communications (such as reference signals, control information, data communications, or combinations thereof) to the apparatus 1006. In some aspects, one or more other components of the apparatus 1000 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the apparatus 1006. In some aspects, the transmitting component 1004 may perform signal processing (such as filtering, amplifying, modulating, digital-to-analog conversion, multiplexing, interleaving, mapping or encoding, etc.) on the generated communications and may transmit the processed signals to the apparatus 1006. In some aspects, the transmitting component 1004 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described peripherals. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.

[0168] Communication manager 1008, receiving component 1002, and / or sending component 1004 can communicate with the WCD via a wireless connection during a time period, the wireless connection using a first channel for communication. Receiving component 1002 can receive an indication to switch to a second channel for communication, the second channel using CAC to obtain resources for communication.

[0169] The communication manager 1008, the receiving component 1002, and / or the sending component 1004 can communicate using the second channel.

[0170] Receiving component 1002 can receive an indication to switch to a third channel to communicate based at least in part on detecting in the second channel a communication having a higher priority than the wireless connection.

[0171] The receiving component 1002 can receive an indication to increase latency for communications via the first channel prior to receiving an indication to switch to the second channel for communications.

[0172] Fig.10 The number and arrangement of components shown in the figure are provided as examples. In practice, there may be Fig.10 The components shown in the figure may include additional components, fewer components, different components, or differently arranged components. Fig.10 Two or more components shown in may be implemented in a single component, or Fig.10 The single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 A set (one or more) of components shown in the figure may perform the operations described as being performed by Fig.10 One or more functions performed by another set of components shown in FIG.

[0173] The following provides an overview of some aspects of the disclosure:

[0174] Aspect 1: A method of wireless communication performed by a wireless communication device (WCD), comprising: communicating with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication; and sending an indication to switch to a second channel for communication, the second channel using a channel availability check (CAC) to obtain resources for communication.

[0175] Aspect 2: The method according to aspect 1, wherein the second channel is associated with radar-based signaling, military-based communication, or satellite-based communication.

[0176] Aspect 3: The method according to any of aspects 1-2, wherein the second channel is associated with a transmission power limit that is less than the transmission power limit associated with the first channel.

[0177] Aspect 4: The method according to any one of aspects 1-3, further comprising: monitoring the second channel for availability before sending the indication of switching.

[0178] Aspect 5: A method according to Aspect 4, wherein monitoring the second channel includes one or more of the following: monitoring the second channel using a first transmission chain or a first radio device that is different from a second transmission chain or a second radio device used to communicate using the first channel during the time period; or monitoring the second channel during a concurrent time of the wireless connection.

[0179] Aspect 6: The method according to any one of aspects 1-5 further includes: performing CAC before sending the indication to switch to the second channel; and selecting the second channel from the available one or more available channels based at least in part on the performance of CAC.

[0180] Aspect 7: The method of aspect 6, wherein selecting the second channel comprises selecting the second channel based at least in part on one or more of: congestion of the second channel, a bias towards using a channel that utilizes CAC to obtain resources for communication.

[0181] Aspect 8: The method according to any one of Aspects 1-7 further includes: using a second channel to communicate; monitoring communications having a higher priority than the priority of the wireless connection; and sending an indication to switch to a third channel for communication based at least in part on detecting communications having a higher priority than the priority of the wireless connection in the second channel.

[0182] Aspect 9: The method according to any one of aspects 1-8, further comprising: providing an indication to increase a delay of communication via the first channel before sending an indication to switch to the second channel for communication.

[0183] Aspect 10: The method according to any one of aspects 1-9, wherein sending an indication to switch to the second channel for communication comprises: sending an indication via a channel switch announcement (CSA) or sending an indication via a vendor specific action frame.

[0184] Aspect 11: A method according to any one of aspects 1-10, wherein sending an indication to switch to the second channel for communication is based at least in part on one or more of the following: at least in part on using CAC to obtain resources for the second channel, or congestion of the first channel.

[0185] Aspect 12: The method according to any one of aspects 1-11, wherein the indication of switching to the second channel for communication comprises one or more of: an indication of a parameter of the second channel, or an indication of a time to start using the second channel.

[0186] Aspect 13: The method according to any one of aspects 1-12, wherein the first channel uses CAC to obtain resources for communication, or wherein the first channel does not use CAC.

[0187] Aspect 14: The method according to any one of Aspects 1 to 13, wherein the peripheral device comprises one or more of an audio device, an extended reality device, or a video display device.

[0188] Aspect 15: A method of wireless communication performed by a peripheral device, comprising: communicating with a wireless communication device (WCD) via a wireless connection during a time period, the wireless connection using a first channel for communication; and receiving an indication to switch to a second channel for communication, the second channel using a channel availability check (CAC) to obtain resources for communication.

[0189] Aspect 16: The method of aspect 15, wherein the second channel is associated with radar-based signaling, military-based communications, or satellite-based communications.

[0190] Aspect 17: The method according to any of aspects 15-16, wherein the second channel is associated with a transmission power limit that is less than the transmission power limit associated with the first channel.

[0191] Aspect 18: The method according to any one of Aspects 15-17 also includes: using a second channel to communicate; and receiving an indication to switch to a third channel for communication based at least in part on detecting a communication having a higher priority than the wireless connection in the second channel.

[0192] Aspect 19: The method according to any one of aspects 15-18, further comprising: before receiving the indication to switch to the second channel for communication, receiving an indication to increase the latency of communication via the first channel.

[0193] Aspect 20: The method according to any one of aspects 15-19, wherein receiving an indication to switch to the second channel for communication comprises: receiving the indication via a channel switch announcement (CSA) or receiving the indication via a vendor specific action frame.

[0194] Aspect 21: A method according to any one of aspects 15-20, wherein receiving an indication to switch to the second channel for communication is based at least in part on one or more of: obtaining resources for the second channel based at least in part on CAC, or congestion of the first channel.

[0195] Aspect 22: The method according to any one of aspects 15-21, wherein the indication of switching to the second channel for communication comprises one or more of: an indication of a parameter of the second channel, or an indication of a time to start using the second channel.

[0196] Aspect 23: The method according to any one of aspects 15-22, wherein the first channel uses CAC to obtain resources for communication, or wherein the first channel does not use CAC.

[0197] Aspect 24: The method according to any one of aspects 15 to 23, wherein the peripheral device includes one or more of an audio device, an extended reality device, or a video display device.

[0198] Aspect 25: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to one or more of aspects 1-24.

[0199] Aspect 26: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1-24.

[0200] Aspect 27: An apparatus for wireless communication, comprising at least one component for performing a method according to one or more of aspects 1-24.

[0201] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method according to one or more of aspects 1-24.

[0202] Aspect 29: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method according to one or more of aspects 1-24.

[0203] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the various aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure, or may be acquired from the practice of various aspects.

[0204] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other terms, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, etc. As used herein, "processor" is implemented with a combination of hardware and / or hardware and software. It is obvious that the system and / or method described herein can be implemented with a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the system and / or method are described herein without reference to specific software codes, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0205] As used herein, "satisfying a threshold" may refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0206] Even if a specific combination of features is described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner not specifically described in the claims and / or not disclosed in the specification. The disclosure of various aspects includes the combination of each dependent claim with each other claim in the claim set. As used herein, the phrase "at least one" mentioned in the project list refers to any combination of these projects, including a single member. As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other ordering of a, b and c).

[0207] Unless clearly described as such, the elements, actions or instructions used herein should not be interpreted as key or necessary. In addition, as used herein, the article is intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "said (the)" is intended to include one or more projects mentioned in conjunction with the article "said (the)", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects, and can be used interchangeably with "one or more". In the case of only one project intended, the phrase "only one" or similar language is used. In addition, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "having" A elements can also have B). In addition, unless otherwise clearly stated, the phrase "based on" is intended to represent "at least partially based on". In addition, as used herein, the term "or" is intended to be inclusive when used in series, and can be used interchangeably with "and / or", unless otherwise clearly stated (for example, if used in combination with "either" or "only one in").

Claims

1. A wireless communication device (WCD) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, configured to cause the WCD to: communicating with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication; monitoring a second channel during concurrent time of the wireless connection, the second channel using a channel availability check (CAC) to obtain resources for communication; as well as An indication is sent to switch to the second channel for communication.

2. The WCD of claim 1, wherein: The second channel is associated with radar-based signaling, military-based communications, or satellite-based communications.

3. The WCD of claim 1, wherein: The second channel is associated with a transmission power limit that is less than a transmission power limit associated with the first channel.

4. The WCD of claim 1, wherein: The one or more processors are further configured to cause the WCD to: Prior to sending an indication to switch, the second channel is monitored for availability.

5. The WCD of claim 4, wherein: To monitor the second channel, the one or more processors are configured to cause the WCD to: The second channel is monitored using a first transmission chain or a first radio that is different from a second transmission chain or a second radio used to communicate using the first channel during the time period.

6. The WCD of claim 1, wherein: The one or more processors are further configured to cause the WCD to: performing the CAC before sending the indication to switch to the second channel; and The second channel is selected from one or more available channels based at least in part on the execution of the CAC.

7. The WCD of claim 6, wherein: To select the second channel, the one or more processors are configured to select the second channel based at least in part on one or more of: congestion of the second channel, A bias towards using channels that utilize the CAC to obtain resources for communication.

8. The WCD of claim 1, wherein: The one or more processors are further configured to cause the WCD to: communicating using the second channel; monitoring for communications having a higher priority than the priority of the wireless connection; and Based at least in part on detecting in the second channel a communication having a higher priority than the priority of the wireless connection, an indication is sent to switch to a third channel for communication.

9. The WCD of claim 1, wherein: The one or more processors are further configured to cause the WCD to: Prior to sending an indication to switch to the second channel for communications, an indication is provided to increase a latency for communications via the first channel.

10. The WCD of claim 1, wherein: Sending an instruction to switch to the second channel for communication includes: The indication is sent via a channel switch announcement (CSA), or The indication is sent via a vendor specific action frame.

11. The WCD of claim 1 , wherein: Sending the indication to switch to the second channel to communicate is based at least in part on one or more of: based at least in part on using CAC to obtain resources for the second channel, or Congestion of the first channel.

12. The WCD of claim 1, wherein: The indication to switch to the second channel for communication includes one or more of the following: an indication of a parameter of the second channel, or An indication of a time to begin using the second channel.

13. The WCD of claim 1, wherein: The first channel uses the CAC to obtain resources for communication, or The first channel does not use CAC.

14. The WCD of claim 1, wherein: The peripheral devices include one or more of the following: Audio equipment, an extended reality device, or Video display equipment.

15. A peripheral device for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, configured to cause the peripheral device to: communicating with a wireless communication device (WCD) via a wireless connection during a time period, the wireless connection using a first channel for communication; as well as An indication is received to switch to a second channel for communication, the second channel using a channel availability check (CAC) to obtain resources for communication.

16. The peripheral device according to claim 15, wherein: The second channel is associated with radar-based signaling, military-based communications, or satellite-based communications.

17. The peripheral device according to claim 15, wherein: The second channel is associated with a transmission power limit that is less than a transmission power limit associated with the first channel.

18. The peripheral device according to claim 15, wherein: The one or more processors are further configured to cause the peripheral device to: communicating using the second channel; and Based at least in part on detecting in the second channel a communication having a higher priority than the priority of the wireless connection, an indication is received to switch to a third channel for communication.

19. The peripheral device according to claim 15, wherein: The one or more processors are further configured to cause the peripheral device to: Prior to receiving an indication to switch to the second channel to communicate, an indication to increase a latency for communications via the first channel is received.

20. The peripheral device according to claim 15, wherein: Receiving an indication to switch to the second channel for communication includes: receiving the indication via a channel switch announcement (CSA), or The indication is received via a vendor specific action frame.

21. The peripheral device according to claim 15, wherein: Receiving an indication to switch to the second channel to communicate is based at least in part on one or more of: obtaining resources for the second channel based at least in part on the CAC, or Congestion of the first channel.

22. The peripheral device of claim 15, wherein: The indication to switch to the second channel for communication includes one or more of the following: an indication of a parameter of the second channel, or An indication of a time to begin using the second channel.

23. The peripheral device of claim 15, wherein: The first channel uses the CAC to obtain resources for communication, or The first channel does not use CAC.

24. The peripheral device of claim 15, wherein: The peripheral devices include one or more of the following: Audio equipment, an extended reality device, or Video display equipment.

25. A method of wireless communication performed by a wireless communication device (WCD), comprising: communicating with a peripheral device via a wireless connection during a time period, the wireless connection using a first channel for communication; monitoring a second channel during a concurrent time of the wireless connection, the second channel using a channel availability check (CAC) to obtain resources for communication; as well as An indication is sent to switch to the second channel for communication.

26. The method according to claim 25, further comprising: Prior to sending an indication to switch, the second channel is monitored for availability.

27. The method of claim 25, further comprising: performing the CAC before sending an indication to switch to the second channel; and The second channel is selected from one or more available channels based at least in part on the execution of CAC.

28. A method of wireless communication performed by a peripheral device, comprising: communicating with a wireless communication device (WCD) via a wireless connection during a time period, the wireless connection using a first channel for communication; as well as An indication is received to switch to a second channel for communication, the second channel using a channel availability check (CAC) to obtain resources for communication.

29. The method according to claim 28, wherein: The second channel is associated with a transmission power limit that is less than a transmission power limit associated with the first channel.

30. The method of claim 28, wherein: Receiving an indication to switch to the second channel to communicate is based at least in part on one or more of: obtaining resources for the second channel based at least in part on the CAC, or Congestion of the first channel.

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